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-rw-r--r--src/usr.bin/openssl/req.c1879
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diff --git a/src/usr.bin/openssl/req.c b/src/usr.bin/openssl/req.c
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1/* $OpenBSD: req.c,v 1.29 2024/04/17 01:24:43 tb Exp $ */
2/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3 * All rights reserved.
4 *
5 * This package is an SSL implementation written
6 * by Eric Young (eay@cryptsoft.com).
7 * The implementation was written so as to conform with Netscapes SSL.
8 *
9 * This library is free for commercial and non-commercial use as long as
10 * the following conditions are aheared to. The following conditions
11 * apply to all code found in this distribution, be it the RC4, RSA,
12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
13 * included with this distribution is covered by the same copyright terms
14 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15 *
16 * Copyright remains Eric Young's, and as such any Copyright notices in
17 * the code are not to be removed.
18 * If this package is used in a product, Eric Young should be given attribution
19 * as the author of the parts of the library used.
20 * This can be in the form of a textual message at program startup or
21 * in documentation (online or textual) provided with the package.
22 *
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
25 * are met:
26 * 1. Redistributions of source code must retain the copyright
27 * notice, this list of conditions and the following disclaimer.
28 * 2. Redistributions in binary form must reproduce the above copyright
29 * notice, this list of conditions and the following disclaimer in the
30 * documentation and/or other materials provided with the distribution.
31 * 3. All advertising materials mentioning features or use of this software
32 * must display the following acknowledgement:
33 * "This product includes cryptographic software written by
34 * Eric Young (eay@cryptsoft.com)"
35 * The word 'cryptographic' can be left out if the rouines from the library
36 * being used are not cryptographic related :-).
37 * 4. If you include any Windows specific code (or a derivative thereof) from
38 * the apps directory (application code) you must include an acknowledgement:
39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40 *
41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
51 * SUCH DAMAGE.
52 *
53 * The licence and distribution terms for any publically available version or
54 * derivative of this code cannot be changed. i.e. this code cannot simply be
55 * copied and put under another distribution licence
56 * [including the GNU Public Licence.]
57 */
58
59/* Until the key-gen callbacks are modified to use newer prototypes, we allow
60 * deprecated functions for openssl-internal code */
61#ifdef OPENSSL_NO_DEPRECATED
62#undef OPENSSL_NO_DEPRECATED
63#endif
64
65#include <ctype.h>
66#include <limits.h>
67#include <stdio.h>
68#include <stdlib.h>
69#include <string.h>
70#include <time.h>
71
72#include "apps.h"
73
74#include <openssl/asn1.h>
75#include <openssl/bio.h>
76#include <openssl/bn.h>
77#include <openssl/conf.h>
78#include <openssl/err.h>
79#include <openssl/evp.h>
80#include <openssl/objects.h>
81#include <openssl/pem.h>
82#include <openssl/x509.h>
83#include <openssl/x509v3.h>
84
85#include <openssl/dsa.h>
86
87#include <openssl/rsa.h>
88
89#define SECTION "req"
90
91#define BITS "default_bits"
92#define KEYFILE "default_keyfile"
93#define PROMPT "prompt"
94#define DISTINGUISHED_NAME "distinguished_name"
95#define ATTRIBUTES "attributes"
96#define V3_EXTENSIONS "x509_extensions"
97#define REQ_EXTENSIONS "req_extensions"
98#define STRING_MASK "string_mask"
99#define UTF8_IN "utf8"
100
101#define DEFAULT_KEY_LENGTH 2048
102#define MIN_KEY_LENGTH 384
103
104static int make_REQ(X509_REQ * req, EVP_PKEY * pkey, char *dn, int multirdn,
105 int attribs, unsigned long chtype);
106static int build_subject(X509_REQ * req, char *subj, unsigned long chtype,
107 int multirdn);
108static int prompt_info(X509_REQ * req,
109 STACK_OF(CONF_VALUE) * dn_sk, char *dn_sect,
110 STACK_OF(CONF_VALUE) * attr_sk, char *attr_sect, int attribs,
111 unsigned long chtype);
112static int auto_info(X509_REQ * req, STACK_OF(CONF_VALUE) * sk,
113 STACK_OF(CONF_VALUE) * attr, int attribs,
114 unsigned long chtype);
115static int add_attribute_object(X509_REQ * req, char *text, const char *def,
116 char *value, int nid, int n_min,
117 int n_max, unsigned long chtype);
118static int add_DN_object(X509_NAME * n, char *text, const char *def, char *value,
119 int nid, int n_min, int n_max, unsigned long chtype, int mval);
120static int genpkey_cb(EVP_PKEY_CTX * ctx);
121static int req_check_len(int len, int n_min, int n_max);
122static int check_end(const char *str, const char *end);
123static EVP_PKEY_CTX *set_keygen_ctx(BIO * err, const char *gstr, int *pkey_type,
124 long *pkeylen, char **palgnam);
125static unsigned long ext_name_hash(const OPENSSL_STRING *a);
126static int ext_name_cmp(const OPENSSL_STRING *a, const OPENSSL_STRING *b);
127static void exts_cleanup(OPENSSL_STRING *x);
128static int duplicated(LHASH_OF(OPENSSL_STRING) *addexts, char *kv);
129static CONF *req_conf = NULL;
130static CONF *addext_conf = NULL;
131
132static struct {
133 LHASH_OF(OPENSSL_STRING) *addexts;
134 BIO *addext_bio;
135 int batch;
136 unsigned long chtype;
137 int days;
138 const EVP_MD *digest;
139 char *extensions;
140 char *infile;
141 int informat;
142 char *keyalg;
143 char *keyfile;
144 int keyform;
145 char *keyout;
146 int modulus;
147 int multirdn;
148 int newhdr;
149 long newkey;
150 int newreq;
151 unsigned long nmflag;
152 int nodes;
153 int noout;
154 char *outfile;
155 int outformat;
156 char *passargin;
157 char *passargout;
158 STACK_OF(OPENSSL_STRING) *pkeyopts;
159 int pubkey;
160 char *req_exts;
161 unsigned long reqflag;
162 ASN1_INTEGER *serial;
163 STACK_OF(OPENSSL_STRING) *sigopts;
164 char *subj;
165 int subject;
166 char *template;
167 int text;
168 int verbose;
169 int verify;
170 int x509;
171} cfg;
172
173static int
174req_opt_addext(char *arg)
175{
176 int i;
177
178 if (cfg.addexts == NULL) {
179 cfg.addexts = (LHASH_OF(OPENSSL_STRING) *)lh_new(
180 (LHASH_HASH_FN_TYPE)ext_name_hash,
181 (LHASH_COMP_FN_TYPE)ext_name_cmp);
182 cfg.addext_bio = BIO_new(BIO_s_mem());
183 if (cfg.addexts == NULL ||
184 cfg.addext_bio == NULL)
185 return (1);
186 }
187 i = duplicated(cfg.addexts, arg);
188 if (i == 1)
189 return (1);
190 if (i < 0 || BIO_printf(cfg.addext_bio, "%s\n", arg) < 0)
191 return (1);
192
193 return (0);
194}
195
196static int
197req_opt_days(char *arg)
198{
199 const char *errstr;
200
201 cfg.days = strtonum(arg, 1, INT_MAX, &errstr);
202 if (errstr != NULL) {
203 BIO_printf(bio_err, "bad -days %s, using 0: %s\n",
204 arg, errstr);
205 cfg.days = 30;
206 }
207 return (0);
208}
209
210static int
211req_opt_digest(int argc, char **argv, int *argsused)
212{
213 char *name = argv[0];
214
215 if (*name++ != '-')
216 return (1);
217
218 if ((cfg.digest = EVP_get_digestbyname(name)) == NULL)
219 return (1);
220
221 *argsused = 1;
222 return (0);
223}
224
225static int
226req_opt_newkey(char *arg)
227{
228 cfg.keyalg = arg;
229 cfg.newreq = 1;
230 return (0);
231}
232
233static int
234req_opt_nameopt(char *arg)
235{
236 if (!set_name_ex(&cfg.nmflag, arg))
237 return (1);
238 return (0);
239}
240
241static int
242req_opt_pkeyopt(char *arg)
243{
244 if (cfg.pkeyopts == NULL)
245 cfg.pkeyopts = sk_OPENSSL_STRING_new_null();
246 if (cfg.pkeyopts == NULL)
247 return (1);
248 if (!sk_OPENSSL_STRING_push(cfg.pkeyopts, arg))
249 return (1);
250 return (0);
251}
252
253static int
254req_opt_reqopt(char *arg)
255{
256 if (!set_cert_ex(&cfg.reqflag, arg))
257 return (1);
258 return (0);
259}
260
261static int
262req_opt_set_serial(char *arg)
263{
264 cfg.serial = s2i_ASN1_INTEGER(NULL, arg);
265 if (cfg.serial == NULL)
266 return (1);
267 return (0);
268}
269
270static int
271req_opt_sigopt(char *arg)
272{
273 if (cfg.sigopts == NULL)
274 cfg.sigopts = sk_OPENSSL_STRING_new_null();
275 if (cfg.sigopts == NULL)
276 return (1);
277 if (!sk_OPENSSL_STRING_push(cfg.sigopts, arg))
278 return (1);
279 return (0);
280}
281
282static int
283req_opt_utf8(void)
284{
285 cfg.chtype = MBSTRING_UTF8;
286 return (0);
287}
288
289static const struct option req_options[] = {
290 {
291 .name = "addext",
292 .argname = "key=value",
293 .desc = "Additional certificate extension (may be repeated)",
294 .type = OPTION_ARG_FUNC,
295 .opt.argfunc = req_opt_addext,
296 },
297 {
298 .name = "batch",
299 .desc = "Operate in batch mode",
300 .type = OPTION_FLAG,
301 .opt.flag = &cfg.batch,
302 },
303 {
304 .name = "config",
305 .argname = "file",
306 .desc = "Configuration file to use as request template",
307 .type = OPTION_ARG,
308 .opt.arg = &cfg.template,
309 },
310 {
311 .name = "days",
312 .argname = "number",
313 .desc = "Number of days generated certificate is valid for",
314 .type = OPTION_ARG_FUNC,
315 .opt.argfunc = req_opt_days,
316 },
317 {
318 .name = "extensions",
319 .argname = "section",
320 .desc = "Config section to use for certificate extensions",
321 .type = OPTION_ARG,
322 .opt.arg = &cfg.extensions,
323 },
324 {
325 .name = "in",
326 .argname = "file",
327 .desc = "Input file (default stdin)",
328 .type = OPTION_ARG,
329 .opt.arg = &cfg.infile,
330 },
331 {
332 .name = "inform",
333 .argname = "format",
334 .desc = "Input format (DER or PEM (default))",
335 .type = OPTION_ARG_FORMAT,
336 .opt.value = &cfg.informat,
337 },
338 {
339 .name = "key",
340 .argname = "file",
341 .desc = "Private key file",
342 .type = OPTION_ARG,
343 .opt.arg = &cfg.keyfile,
344 },
345 {
346 .name = "keyform",
347 .argname = "format",
348 .desc = "Private key format (DER or PEM (default))",
349 .type = OPTION_ARG_FORMAT,
350 .opt.value = &cfg.keyform,
351 },
352 {
353 .name = "keyout",
354 .argname = "file",
355 .desc = "Private key output file",
356 .type = OPTION_ARG,
357 .opt.arg = &cfg.keyout,
358 },
359 {
360 .name = "modulus",
361 .desc = "Print RSA modulus",
362 .type = OPTION_FLAG,
363 .opt.flag = &cfg.modulus,
364 },
365 {
366 .name = "multivalue-rdn",
367 .desc = "Enable support for multivalued RDNs",
368 .type = OPTION_FLAG,
369 .opt.flag = &cfg.multirdn,
370 },
371 {
372 .name = "nameopt",
373 .argname = "arg",
374 .desc = "Certificate name options",
375 .type = OPTION_ARG_FUNC,
376 .opt.argfunc = req_opt_nameopt,
377 },
378 {
379 .name = "new",
380 .desc = "New request",
381 .type = OPTION_FLAG,
382 .opt.flag = &cfg.newreq,
383 },
384 {
385 .name = "newhdr",
386 .desc = "Include 'NEW' in header lines",
387 .type = OPTION_FLAG,
388 .opt.flag = &cfg.newhdr,
389 },
390 {
391 .name = "newkey",
392 .argname = "param",
393 .desc = "Generate a new key using given parameters",
394 .type = OPTION_ARG_FUNC,
395 .opt.argfunc = req_opt_newkey,
396 },
397 {
398 .name = "nodes",
399 .desc = "Do not encrypt output private key",
400 .type = OPTION_FLAG,
401 .opt.flag = &cfg.nodes,
402 },
403 {
404 .name = "noout",
405 .desc = "Do not output request",
406 .type = OPTION_FLAG,
407 .opt.flag = &cfg.noout,
408 },
409 {
410 .name = "out",
411 .argname = "file",
412 .desc = "Output file (default stdout)",
413 .type = OPTION_ARG,
414 .opt.arg = &cfg.outfile,
415 },
416 {
417 .name = "outform",
418 .argname = "format",
419 .desc = "Output format (DER or PEM (default))",
420 .type = OPTION_ARG_FORMAT,
421 .opt.value = &cfg.outformat,
422 },
423 {
424 .name = "passin",
425 .argname = "source",
426 .desc = "Private key input password source",
427 .type = OPTION_ARG,
428 .opt.arg = &cfg.passargin,
429 },
430 {
431 .name = "passout",
432 .argname = "source",
433 .desc = "Private key output password source",
434 .type = OPTION_ARG,
435 .opt.arg = &cfg.passargout,
436 },
437 {
438 .name = "pkeyopt",
439 .argname = "opt:val",
440 .desc = "Set the public key algorithm option opt to val",
441 .type = OPTION_ARG_FUNC,
442 .opt.argfunc = req_opt_pkeyopt,
443 },
444 {
445 .name = "pubkey",
446 .desc = "Output the public key",
447 .type = OPTION_FLAG,
448 .opt.flag = &cfg.pubkey,
449 },
450 {
451 .name = "reqexts",
452 .argname = "section",
453 .desc = "Config section to use for request extensions",
454 .type = OPTION_ARG,
455 .opt.arg = &cfg.req_exts,
456 },
457 {
458 .name = "reqopt",
459 .argname = "option",
460 .desc = "Request text options",
461 .type = OPTION_ARG_FUNC,
462 .opt.argfunc = req_opt_reqopt,
463 },
464 {
465 .name = "set_serial",
466 .argname = "serial",
467 .desc = "Serial number to use for generated certificate",
468 .type = OPTION_ARG_FUNC,
469 .opt.argfunc = req_opt_set_serial,
470 },
471 {
472 .name = "sigopt",
473 .argname = "name:val",
474 .desc = "Signature options",
475 .type = OPTION_ARG_FUNC,
476 .opt.argfunc = req_opt_sigopt,
477 },
478 {
479 .name = "subj",
480 .argname = "name",
481 .desc = "Set or modify the request subject",
482 .type = OPTION_ARG,
483 .opt.arg = &cfg.subj,
484 },
485 {
486 .name = "subject",
487 .desc = "Output the subject of the request",
488 .type = OPTION_FLAG,
489 .opt.flag = &cfg.subject,
490 },
491 {
492 .name = "text",
493 .desc = "Print request in text form",
494 .type = OPTION_FLAG,
495 .opt.flag = &cfg.text,
496 },
497 {
498 .name = "utf8",
499 .desc = "Input characters are in UTF-8 (default ASCII)",
500 .type = OPTION_FUNC,
501 .opt.func = req_opt_utf8,
502 },
503 {
504 .name = "verbose",
505 .desc = "Verbose",
506 .type = OPTION_FLAG,
507 .opt.flag = &cfg.verbose,
508 },
509 {
510 .name = "verify",
511 .desc = "Verify signature on request",
512 .type = OPTION_FLAG,
513 .opt.flag = &cfg.verify,
514 },
515 {
516 .name = "x509",
517 .desc = "Output an X.509 structure instead of a certificate request",
518 .type = OPTION_FLAG,
519 .opt.flag = &cfg.x509,
520 },
521 {
522 .name = NULL,
523 .desc = "",
524 .type = OPTION_ARGV_FUNC,
525 .opt.argvfunc = req_opt_digest,
526 },
527 { NULL },
528};
529
530static void
531req_usage(void)
532{
533 fprintf(stderr,
534 "usage: req [-addext ext] [-batch] [-config file]\n"
535 " [-days n] [-extensions section] [-in file]\n"
536 " [-inform der | pem] [-key keyfile] [-keyform der | pem]\n"
537 " [-keyout file] [-md4 | -md5 | -sha1] [-modulus]\n"
538 " [-multivalue-rdn] [-nameopt option] [-new] [-newhdr]\n"
539 " [-newkey arg] [-nodes] [-noout]\n"
540 " [-out file] [-outform der | pem] [-passin arg]\n"
541 " [-passout arg] [-pkeyopt opt:value] [-pubkey]\n"
542 " [-reqexts section] [-reqopt option] [-set_serial n]\n"
543 " [-sigopt nm:v] [-subj arg] [-subject] [-text] [-utf8]\n"
544 " [-verbose] [-verify] [-x509]\n\n");
545
546 options_usage(req_options);
547 fprintf(stderr, "\n");
548}
549
550int
551req_main(int argc, char **argv)
552{
553 int ex = 1;
554 X509 *x509ss = NULL;
555 X509_REQ *req = NULL;
556 EVP_PKEY_CTX *genctx = NULL;
557 char *keyalgstr = NULL;
558 const EVP_CIPHER *cipher = NULL;
559 EVP_PKEY *pkey = NULL;
560 int i = 0, pkey_type = -1;
561 BIO *in = NULL, *out = NULL;
562 char *passin = NULL, *passout = NULL;
563 const EVP_MD *md_alg = NULL;
564 char *p;
565
566 if (pledge("stdio cpath wpath rpath tty", NULL) == -1) {
567 perror("pledge");
568 exit(1);
569 }
570
571 memset(&cfg, 0, sizeof(cfg));
572
573 cfg.chtype = MBSTRING_ASC;
574 cfg.days = 30;
575 cfg.digest = EVP_sha256();
576 cfg.newkey = -1;
577 cfg.informat = FORMAT_PEM;
578 cfg.keyform = FORMAT_PEM;
579 cfg.outformat = FORMAT_PEM;
580
581 if (options_parse(argc, argv, req_options, NULL, NULL) != 0) {
582 req_usage();
583 return (1);
584 }
585
586 req_conf = NULL;
587 cipher = EVP_aes_256_cbc();
588
589 if (!app_passwd(bio_err, cfg.passargin, cfg.passargout, &passin, &passout)) {
590 BIO_printf(bio_err, "Error getting passwords\n");
591 goto end;
592 }
593 if (cfg.template != NULL) {
594 long errline = -1;
595
596 if (cfg.verbose)
597 BIO_printf(bio_err, "Using configuration from %s\n", cfg.template);
598 if ((req_conf = NCONF_new(NULL)) == NULL)
599 goto end;
600 if(!NCONF_load(req_conf, cfg.template, &errline)) {
601 BIO_printf(bio_err, "error on line %ld of %s\n", errline, cfg.template);
602 goto end;
603 }
604 } else {
605 req_conf = config;
606
607 if (req_conf == NULL) {
608 BIO_printf(bio_err, "Unable to load config info from %s\n", default_config_file);
609 if (cfg.newreq)
610 goto end;
611 } else if (cfg.verbose)
612 BIO_printf(bio_err, "Using configuration from %s\n",
613 default_config_file);
614 }
615
616 if (cfg.addext_bio != NULL) {
617 long errline = -1;
618 if (cfg.verbose)
619 BIO_printf(bio_err,
620 "Using additional configuration from command line\n");
621 if ((addext_conf = NCONF_new(NULL)) == NULL)
622 goto end;
623 if (!NCONF_load_bio(addext_conf, cfg.addext_bio, &errline)) {
624 BIO_printf(bio_err,
625 "req: Error on line %ld of config input\n",
626 errline);
627 goto end;
628 }
629 }
630
631 if (req_conf != NULL) {
632 if (!load_config(bio_err, req_conf))
633 goto end;
634 p = NCONF_get_string(req_conf, NULL, "oid_file");
635 if (p == NULL)
636 ERR_clear_error();
637 if (p != NULL) {
638 BIO *oid_bio;
639
640 oid_bio = BIO_new_file(p, "r");
641 if (oid_bio == NULL) {
642 /*
643 BIO_printf(bio_err,"problems opening %s for extra oid's\n",p);
644 ERR_print_errors(bio_err);
645 */
646 } else {
647 OBJ_create_objects(oid_bio);
648 BIO_free(oid_bio);
649 }
650 }
651 }
652 if (!add_oid_section(bio_err, req_conf))
653 goto end;
654
655 if (md_alg == NULL) {
656 p = NCONF_get_string(req_conf, SECTION, "default_md");
657 if (p == NULL)
658 ERR_clear_error();
659 if (p != NULL) {
660 if ((md_alg = EVP_get_digestbyname(p)) != NULL)
661 cfg.digest = md_alg;
662 }
663 }
664 if (!cfg.extensions) {
665 cfg.extensions = NCONF_get_string(req_conf, SECTION, V3_EXTENSIONS);
666 if (!cfg.extensions)
667 ERR_clear_error();
668 }
669 if (cfg.extensions) {
670 /* Check syntax of file */
671 X509V3_CTX ctx;
672 X509V3_set_ctx_test(&ctx);
673 X509V3_set_nconf(&ctx, req_conf);
674 if (!X509V3_EXT_add_nconf(req_conf, &ctx, cfg.extensions, NULL)) {
675 BIO_printf(bio_err,
676 "Error Loading extension section %s\n", cfg.extensions);
677 goto end;
678 }
679 }
680 if (addext_conf != NULL) {
681 /* Check syntax of command line extensions */
682 X509V3_CTX ctx;
683 X509V3_set_ctx_test(&ctx);
684 X509V3_set_nconf(&ctx, addext_conf);
685 if (!X509V3_EXT_add_nconf(addext_conf, &ctx, "default", NULL)) {
686 BIO_printf(bio_err,
687 "Error Loading command line extensions\n");
688 goto end;
689 }
690 }
691 if (!passin) {
692 passin = NCONF_get_string(req_conf, SECTION, "input_password");
693 if (!passin)
694 ERR_clear_error();
695 }
696 if (!passout) {
697 passout = NCONF_get_string(req_conf, SECTION, "output_password");
698 if (!passout)
699 ERR_clear_error();
700 }
701 p = NCONF_get_string(req_conf, SECTION, STRING_MASK);
702 if (!p)
703 ERR_clear_error();
704
705 if (p && !ASN1_STRING_set_default_mask_asc(p)) {
706 BIO_printf(bio_err, "Invalid global string mask setting %s\n", p);
707 goto end;
708 }
709 if (cfg.chtype != MBSTRING_UTF8) {
710 p = NCONF_get_string(req_conf, SECTION, UTF8_IN);
711 if (!p)
712 ERR_clear_error();
713 else if (!strcmp(p, "yes"))
714 cfg.chtype = MBSTRING_UTF8;
715 }
716 if (!cfg.req_exts) {
717 cfg.req_exts = NCONF_get_string(req_conf, SECTION, REQ_EXTENSIONS);
718 if (!cfg.req_exts)
719 ERR_clear_error();
720 }
721 if (cfg.req_exts) {
722 /* Check syntax of file */
723 X509V3_CTX ctx;
724 X509V3_set_ctx_test(&ctx);
725 X509V3_set_nconf(&ctx, req_conf);
726 if (!X509V3_EXT_add_nconf(req_conf, &ctx, cfg.req_exts, NULL)) {
727 BIO_printf(bio_err,
728 "Error Loading request extension section %s\n",
729 cfg.req_exts);
730 goto end;
731 }
732 }
733 in = BIO_new(BIO_s_file());
734 out = BIO_new(BIO_s_file());
735 if ((in == NULL) || (out == NULL))
736 goto end;
737
738 if (cfg.keyfile != NULL) {
739 pkey = load_key(bio_err, cfg.keyfile, cfg.keyform, 0, passin,
740 "Private Key");
741 if (!pkey) {
742 /*
743 * load_key() has already printed an appropriate
744 * message
745 */
746 goto end;
747 }
748 }
749 if (cfg.newreq && (pkey == NULL)) {
750 if (!NCONF_get_number(req_conf, SECTION, BITS, &cfg.newkey)) {
751 cfg.newkey = DEFAULT_KEY_LENGTH;
752 }
753 if (cfg.keyalg) {
754 genctx = set_keygen_ctx(bio_err, cfg.keyalg, &pkey_type, &cfg.newkey,
755 &keyalgstr);
756 if (!genctx)
757 goto end;
758 }
759 if (cfg.newkey < MIN_KEY_LENGTH && (pkey_type == EVP_PKEY_RSA || pkey_type == EVP_PKEY_DSA)) {
760 BIO_printf(bio_err, "private key length is too short,\n");
761 BIO_printf(bio_err, "it needs to be at least %d bits, not %ld\n", MIN_KEY_LENGTH, cfg.newkey);
762 goto end;
763 }
764 if (!genctx) {
765 genctx = set_keygen_ctx(bio_err, NULL, &pkey_type, &cfg.newkey,
766 &keyalgstr);
767 if (!genctx)
768 goto end;
769 }
770 if (cfg.pkeyopts) {
771 char *genopt;
772 for (i = 0; i < sk_OPENSSL_STRING_num(cfg.pkeyopts); i++) {
773 genopt = sk_OPENSSL_STRING_value(cfg.pkeyopts, i);
774 if (pkey_ctrl_string(genctx, genopt) <= 0) {
775 BIO_printf(bio_err,
776 "parameter error \"%s\"\n",
777 genopt);
778 ERR_print_errors(bio_err);
779 goto end;
780 }
781 }
782 }
783 BIO_printf(bio_err, "Generating a %ld bit %s private key\n",
784 cfg.newkey, keyalgstr);
785
786 EVP_PKEY_CTX_set_cb(genctx, genpkey_cb);
787 EVP_PKEY_CTX_set_app_data(genctx, bio_err);
788
789 if (EVP_PKEY_keygen(genctx, &pkey) <= 0) {
790 BIO_puts(bio_err, "Error Generating Key\n");
791 goto end;
792 }
793 EVP_PKEY_CTX_free(genctx);
794 genctx = NULL;
795
796 if (cfg.keyout == NULL) {
797 cfg.keyout = NCONF_get_string(req_conf, SECTION, KEYFILE);
798 if (cfg.keyout == NULL)
799 ERR_clear_error();
800 }
801 if (cfg.keyout == NULL) {
802 BIO_printf(bio_err, "writing new private key to stdout\n");
803 BIO_set_fp(out, stdout, BIO_NOCLOSE);
804 } else {
805 BIO_printf(bio_err, "writing new private key to '%s'\n", cfg.keyout);
806 if (BIO_write_filename(out, cfg.keyout) <= 0) {
807 perror(cfg.keyout);
808 goto end;
809 }
810 }
811
812 p = NCONF_get_string(req_conf, SECTION, "encrypt_rsa_key");
813 if (p == NULL) {
814 ERR_clear_error();
815 p = NCONF_get_string(req_conf, SECTION, "encrypt_key");
816 if (p == NULL)
817 ERR_clear_error();
818 }
819 if ((p != NULL) && (strcmp(p, "no") == 0))
820 cipher = NULL;
821 if (cfg.nodes)
822 cipher = NULL;
823
824 i = 0;
825 loop:
826 if (!PEM_write_bio_PrivateKey(out, pkey, cipher,
827 NULL, 0, NULL, passout)) {
828 if ((ERR_GET_REASON(ERR_peek_error()) ==
829 PEM_R_PROBLEMS_GETTING_PASSWORD) && (i < 3)) {
830 ERR_clear_error();
831 i++;
832 goto loop;
833 }
834 goto end;
835 }
836 BIO_printf(bio_err, "-----\n");
837 }
838 if (!cfg.newreq) {
839 if (cfg.infile == NULL)
840 BIO_set_fp(in, stdin, BIO_NOCLOSE);
841 else {
842 if (BIO_read_filename(in, cfg.infile) <= 0) {
843 perror(cfg.infile);
844 goto end;
845 }
846 }
847
848 if (cfg.informat == FORMAT_ASN1)
849 req = d2i_X509_REQ_bio(in, NULL);
850 else if (cfg.informat == FORMAT_PEM)
851 req = PEM_read_bio_X509_REQ(in, NULL, NULL, NULL);
852 else {
853 BIO_printf(bio_err, "bad input format specified for X509 request\n");
854 goto end;
855 }
856 if (req == NULL) {
857 BIO_printf(bio_err, "unable to load X509 request\n");
858 goto end;
859 }
860 }
861 if (cfg.newreq || cfg.x509) {
862 if (pkey == NULL) {
863 BIO_printf(bio_err, "you need to specify a private key\n");
864 goto end;
865 }
866 if (req == NULL) {
867 req = X509_REQ_new();
868 if (req == NULL) {
869 goto end;
870 }
871 i = make_REQ(req, pkey, cfg.subj, cfg.multirdn, !cfg.x509, cfg.chtype);
872 cfg.subj = NULL; /* done processing '-subj' option */
873 if (!i) {
874 BIO_printf(bio_err, "problems making Certificate Request\n");
875 goto end;
876 }
877 }
878 if (cfg.x509) {
879 EVP_PKEY *tmppkey;
880
881 X509V3_CTX ext_ctx;
882 if ((x509ss = X509_new()) == NULL)
883 goto end;
884
885 /* Set version to V3 */
886 if ((cfg.extensions != NULL || addext_conf != NULL) &&
887 !X509_set_version(x509ss, 2))
888 goto end;
889 if (cfg.serial) {
890 if (!X509_set_serialNumber(x509ss, cfg.serial))
891 goto end;
892 } else {
893 if (!rand_serial(NULL,
894 X509_get_serialNumber(x509ss)))
895 goto end;
896 }
897
898 if (!X509_set_issuer_name(x509ss, X509_REQ_get_subject_name(req)))
899 goto end;
900 if (!X509_gmtime_adj(X509_get_notBefore(x509ss), 0))
901 goto end;
902 if (!X509_time_adj_ex(X509_get_notAfter(x509ss), cfg.days, 0, NULL))
903 goto end;
904 if (!X509_set_subject_name(x509ss, X509_REQ_get_subject_name(req)))
905 goto end;
906 if ((tmppkey = X509_REQ_get0_pubkey(req)) == NULL)
907 goto end;
908 if (!X509_set_pubkey(x509ss, tmppkey))
909 goto end;
910
911 /* Set up V3 context struct */
912
913 X509V3_set_ctx(&ext_ctx, x509ss, x509ss, NULL, NULL, 0);
914 X509V3_set_nconf(&ext_ctx, req_conf);
915
916 /* Add extensions */
917 if (cfg.extensions && !X509V3_EXT_add_nconf(req_conf,
918 &ext_ctx, cfg.extensions, x509ss)) {
919 BIO_printf(bio_err,
920 "Error Loading extension section %s\n",
921 cfg.extensions);
922 goto end;
923 }
924 if (addext_conf != NULL &&
925 !X509V3_EXT_add_nconf(addext_conf, &ext_ctx,
926 "default", x509ss)) {
927 BIO_printf(bio_err,
928 "Error Loading command line extensions\n");
929 goto end;
930 }
931 i = do_X509_sign(bio_err, x509ss, pkey, cfg.digest, cfg.sigopts);
932 if (!i) {
933 ERR_print_errors(bio_err);
934 goto end;
935 }
936 } else {
937 X509V3_CTX ext_ctx;
938
939 /* Set up V3 context struct */
940
941 X509V3_set_ctx(&ext_ctx, NULL, NULL, req, NULL, 0);
942 X509V3_set_nconf(&ext_ctx, req_conf);
943
944 /* Add extensions */
945 if (cfg.req_exts && !X509V3_EXT_REQ_add_nconf(req_conf,
946 &ext_ctx, cfg.req_exts, req)) {
947 BIO_printf(bio_err,
948 "Error Loading extension section %s\n",
949 cfg.req_exts);
950 goto end;
951 }
952 if (addext_conf != NULL &&
953 !X509V3_EXT_REQ_add_nconf(addext_conf, &ext_ctx,
954 "default", req)) {
955 BIO_printf(bio_err,
956 "Error Loading command line extensions\n");
957 goto end;
958 }
959 i = do_X509_REQ_sign(bio_err, req, pkey, cfg.digest, cfg.sigopts);
960 if (!i) {
961 ERR_print_errors(bio_err);
962 goto end;
963 }
964 }
965 }
966 if (cfg.subj && cfg.x509) {
967 BIO_printf(bio_err, "Cannot modify certificate subject\n");
968 goto end;
969 }
970 if (cfg.subj && !cfg.x509) {
971 if (cfg.verbose) {
972 BIO_printf(bio_err, "Modifying Request's Subject\n");
973 print_name(bio_err, "old subject=", X509_REQ_get_subject_name(req), cfg.nmflag);
974 }
975 if (build_subject(req, cfg.subj, cfg.chtype, cfg.multirdn) == 0) {
976 BIO_printf(bio_err, "ERROR: cannot modify subject\n");
977 ex = 1;
978 goto end;
979 }
980
981 if (cfg.verbose) {
982 print_name(bio_err, "new subject=", X509_REQ_get_subject_name(req), cfg.nmflag);
983 }
984 }
985 if (cfg.verify && !cfg.x509) {
986 EVP_PKEY *pubkey = pkey;
987
988 if (pubkey == NULL)
989 pubkey = X509_REQ_get0_pubkey(req);
990 if (pubkey == NULL)
991 goto end;
992 i = X509_REQ_verify(req, pubkey);
993 if (i < 0) {
994 goto end;
995 } else if (i == 0) {
996 BIO_printf(bio_err, "verify failure\n");
997 ERR_print_errors(bio_err);
998 } else /* if (i > 0) */
999 BIO_printf(bio_err, "verify OK\n");
1000 }
1001 if (cfg.noout && !cfg.text && !cfg.modulus && !cfg.subject && !cfg.pubkey) {
1002 ex = 0;
1003 goto end;
1004 }
1005 if (cfg.outfile == NULL) {
1006 BIO_set_fp(out, stdout, BIO_NOCLOSE);
1007 } else {
1008 if ((cfg.keyout != NULL) && (strcmp(cfg.outfile, cfg.keyout) == 0))
1009 i = (int) BIO_append_filename(out, cfg.outfile);
1010 else
1011 i = (int) BIO_write_filename(out, cfg.outfile);
1012 if (!i) {
1013 perror(cfg.outfile);
1014 goto end;
1015 }
1016 }
1017
1018 if (cfg.pubkey) {
1019 EVP_PKEY *tpubkey;
1020
1021 if ((tpubkey = X509_REQ_get0_pubkey(req)) == NULL) {
1022 BIO_printf(bio_err, "Error getting public key\n");
1023 ERR_print_errors(bio_err);
1024 goto end;
1025 }
1026 PEM_write_bio_PUBKEY(out, tpubkey);
1027 }
1028 if (cfg.text) {
1029 if (cfg.x509)
1030 X509_print_ex(out, x509ss, cfg.nmflag, cfg.reqflag);
1031 else
1032 X509_REQ_print_ex(out, req, cfg.nmflag, cfg.reqflag);
1033 }
1034 if (cfg.subject) {
1035 if (cfg.x509)
1036 print_name(out, "subject=", X509_get_subject_name(x509ss), cfg.nmflag);
1037 else
1038 print_name(out, "subject=", X509_REQ_get_subject_name(req), cfg.nmflag);
1039 }
1040 if (cfg.modulus) {
1041 EVP_PKEY *tpubkey;
1042
1043 if (cfg.x509)
1044 tpubkey = X509_get0_pubkey(x509ss);
1045 else
1046 tpubkey = X509_REQ_get0_pubkey(req);
1047 if (tpubkey == NULL) {
1048 fprintf(stdout, "Modulus=unavailable\n");
1049 goto end;
1050 }
1051 fprintf(stdout, "Modulus=");
1052 if (EVP_PKEY_base_id(tpubkey) == EVP_PKEY_RSA) {
1053 const BIGNUM *n = NULL;
1054
1055 RSA_get0_key(EVP_PKEY_get0_RSA(tpubkey), &n, NULL, NULL);
1056
1057 BN_print(out, n);
1058 } else
1059 fprintf(stdout, "Wrong Algorithm type");
1060 fprintf(stdout, "\n");
1061 }
1062 if (!cfg.noout && !cfg.x509) {
1063 if (cfg.outformat == FORMAT_ASN1)
1064 i = i2d_X509_REQ_bio(out, req);
1065 else if (cfg.outformat == FORMAT_PEM) {
1066 if (cfg.newhdr)
1067 i = PEM_write_bio_X509_REQ_NEW(out, req);
1068 else
1069 i = PEM_write_bio_X509_REQ(out, req);
1070 } else {
1071 BIO_printf(bio_err, "bad output format specified for outfile\n");
1072 goto end;
1073 }
1074 if (!i) {
1075 BIO_printf(bio_err, "unable to write X509 request\n");
1076 goto end;
1077 }
1078 }
1079 if (!cfg.noout && cfg.x509 && (x509ss != NULL)) {
1080 if (cfg.outformat == FORMAT_ASN1)
1081 i = i2d_X509_bio(out, x509ss);
1082 else if (cfg.outformat == FORMAT_PEM)
1083 i = PEM_write_bio_X509(out, x509ss);
1084 else {
1085 BIO_printf(bio_err, "bad output format specified for outfile\n");
1086 goto end;
1087 }
1088 if (!i) {
1089 BIO_printf(bio_err, "unable to write X509 certificate\n");
1090 goto end;
1091 }
1092 }
1093 ex = 0;
1094 end:
1095 if (ex) {
1096 ERR_print_errors(bio_err);
1097 }
1098 if ((req_conf != NULL) && (req_conf != config))
1099 NCONF_free(req_conf);
1100 NCONF_free(addext_conf);
1101 BIO_free(cfg.addext_bio);
1102 BIO_free(in);
1103 BIO_free_all(out);
1104 EVP_PKEY_free(pkey);
1105 if (genctx)
1106 EVP_PKEY_CTX_free(genctx);
1107 if (cfg.pkeyopts)
1108 sk_OPENSSL_STRING_free(cfg.pkeyopts);
1109 if (cfg.sigopts)
1110 sk_OPENSSL_STRING_free(cfg.sigopts);
1111 lh_OPENSSL_STRING_doall(cfg.addexts, (LHASH_DOALL_FN_TYPE)exts_cleanup);
1112 lh_OPENSSL_STRING_free(cfg.addexts);
1113 free(keyalgstr);
1114 X509_REQ_free(req);
1115 X509_free(x509ss);
1116 ASN1_INTEGER_free(cfg.serial);
1117 if (cfg.passargin && passin)
1118 free(passin);
1119 if (cfg.passargout && passout)
1120 free(passout);
1121 OBJ_cleanup();
1122
1123 return (ex);
1124}
1125
1126static int
1127make_REQ(X509_REQ * req, EVP_PKEY * pkey, char *subj, int multirdn,
1128 int attribs, unsigned long chtype)
1129{
1130 int ret = 0, i;
1131 char no_prompt = 0;
1132 STACK_OF(CONF_VALUE) * dn_sk, *attr_sk = NULL;
1133 char *tmp, *dn_sect, *attr_sect;
1134
1135 tmp = NCONF_get_string(req_conf, SECTION, PROMPT);
1136 if (tmp == NULL)
1137 ERR_clear_error();
1138 if ((tmp != NULL) && !strcmp(tmp, "no"))
1139 no_prompt = 1;
1140
1141 dn_sect = NCONF_get_string(req_conf, SECTION, DISTINGUISHED_NAME);
1142 if (dn_sect == NULL) {
1143 BIO_printf(bio_err, "unable to find '%s' in config\n",
1144 DISTINGUISHED_NAME);
1145 goto err;
1146 }
1147 dn_sk = NCONF_get_section(req_conf, dn_sect);
1148 if (dn_sk == NULL) {
1149 BIO_printf(bio_err, "unable to get '%s' section\n", dn_sect);
1150 goto err;
1151 }
1152 attr_sect = NCONF_get_string(req_conf, SECTION, ATTRIBUTES);
1153 if (attr_sect == NULL) {
1154 ERR_clear_error();
1155 attr_sk = NULL;
1156 } else {
1157 attr_sk = NCONF_get_section(req_conf, attr_sect);
1158 if (attr_sk == NULL) {
1159 BIO_printf(bio_err, "unable to get '%s' section\n", attr_sect);
1160 goto err;
1161 }
1162 }
1163
1164 /* setup version number */
1165 if (!X509_REQ_set_version(req, 0L))
1166 goto err; /* version 1 */
1167
1168 if (no_prompt)
1169 i = auto_info(req, dn_sk, attr_sk, attribs, chtype);
1170 else {
1171 if (subj)
1172 i = build_subject(req, subj, chtype, multirdn);
1173 else
1174 i = prompt_info(req, dn_sk, dn_sect, attr_sk, attr_sect, attribs, chtype);
1175 }
1176 if (!i)
1177 goto err;
1178
1179 if (!X509_REQ_set_pubkey(req, pkey))
1180 goto err;
1181
1182 ret = 1;
1183 err:
1184 return (ret);
1185}
1186
1187/*
1188 * subject is expected to be in the format /type0=value0/type1=value1/type2=...
1189 * where characters may be escaped by \
1190 */
1191static int
1192build_subject(X509_REQ * req, char *subject, unsigned long chtype, int multirdn)
1193{
1194 X509_NAME *n;
1195
1196 if (!(n = parse_name(subject, chtype, multirdn)))
1197 return 0;
1198
1199 if (!X509_REQ_set_subject_name(req, n)) {
1200 X509_NAME_free(n);
1201 return 0;
1202 }
1203 X509_NAME_free(n);
1204 return 1;
1205}
1206
1207
1208static int
1209prompt_info(X509_REQ * req,
1210 STACK_OF(CONF_VALUE) * dn_sk, char *dn_sect,
1211 STACK_OF(CONF_VALUE) * attr_sk, char *attr_sect, int attribs,
1212 unsigned long chtype)
1213{
1214 int i;
1215 char *p, *q;
1216 char buf[100];
1217 int nid, mval;
1218 long n_min, n_max;
1219 char *type, *value;
1220 const char *def;
1221 CONF_VALUE *v;
1222 X509_NAME *subj;
1223 subj = X509_REQ_get_subject_name(req);
1224
1225 if (!cfg.batch) {
1226 BIO_printf(bio_err, "You are about to be asked to enter information that will be incorporated\n");
1227 BIO_printf(bio_err, "into your certificate request.\n");
1228 BIO_printf(bio_err, "What you are about to enter is what is called a Distinguished Name or a DN.\n");
1229 BIO_printf(bio_err, "There are quite a few fields but you can leave some blank\n");
1230 BIO_printf(bio_err, "For some fields there will be a default value,\n");
1231 BIO_printf(bio_err, "If you enter '.', the field will be left blank.\n");
1232 BIO_printf(bio_err, "-----\n");
1233 }
1234 if (sk_CONF_VALUE_num(dn_sk)) {
1235 i = -1;
1236 start: for (;;) {
1237 int ret;
1238 i++;
1239 if (sk_CONF_VALUE_num(dn_sk) <= i)
1240 break;
1241
1242 v = sk_CONF_VALUE_value(dn_sk, i);
1243 p = q = NULL;
1244 type = v->name;
1245 if (!check_end(type, "_min") || !check_end(type, "_max") ||
1246 !check_end(type, "_default") ||
1247 !check_end(type, "_value"))
1248 continue;
1249 /*
1250 * Skip past any leading X. X: X, etc to allow for
1251 * multiple instances
1252 */
1253 for (p = v->name; *p; p++)
1254 if ((*p == ':') || (*p == ',') ||
1255 (*p == '.')) {
1256 p++;
1257 if (*p)
1258 type = p;
1259 break;
1260 }
1261 if (*type == '+') {
1262 mval = -1;
1263 type++;
1264 } else
1265 mval = 0;
1266 /* If OBJ not recognised ignore it */
1267 if ((nid = OBJ_txt2nid(type)) == NID_undef)
1268 goto start;
1269 ret = snprintf(buf, sizeof buf, "%s_default", v->name);
1270 if (ret < 0 || ret >= sizeof(buf)) {
1271 BIO_printf(bio_err, "Name '%s' too long for default\n",
1272 v->name);
1273 return 0;
1274 }
1275 if ((def = NCONF_get_string(req_conf, dn_sect, buf)) == NULL) {
1276 ERR_clear_error();
1277 def = "";
1278 }
1279 ret = snprintf(buf, sizeof buf, "%s_value", v->name);
1280 if (ret < 0 || ret >= sizeof(buf)) {
1281 BIO_printf(bio_err, "Name '%s' too long for value\n",
1282 v->name);
1283 return 0;
1284 }
1285 if ((value = NCONF_get_string(req_conf, dn_sect, buf)) == NULL) {
1286 ERR_clear_error();
1287 value = NULL;
1288 }
1289 ret = snprintf(buf, sizeof buf, "%s_min", v->name);
1290 if (ret < 0 || ret >= sizeof(buf)) {
1291 BIO_printf(bio_err, "Name '%s' too long for min\n",
1292 v->name);
1293 return 0;
1294 }
1295 if (!NCONF_get_number(req_conf, dn_sect, buf, &n_min)) {
1296 ERR_clear_error();
1297 n_min = -1;
1298 }
1299 ret = snprintf(buf, sizeof buf, "%s_max", v->name);
1300 if (ret < 0 || ret >= sizeof(buf)) {
1301 BIO_printf(bio_err, "Name '%s' too long for max\n",
1302 v->name);
1303 return 0;
1304 }
1305 if (!NCONF_get_number(req_conf, dn_sect, buf, &n_max)) {
1306 ERR_clear_error();
1307 n_max = -1;
1308 }
1309 if (!add_DN_object(subj, v->value, def, value, nid,
1310 n_min, n_max, chtype, mval))
1311 return 0;
1312 }
1313 if (X509_NAME_entry_count(subj) == 0) {
1314 BIO_printf(bio_err, "error, no objects specified in config file\n");
1315 return 0;
1316 }
1317 if (attribs) {
1318 if ((attr_sk != NULL) && (sk_CONF_VALUE_num(attr_sk) > 0) &&
1319 (!cfg.batch)) {
1320 BIO_printf(bio_err,
1321 "\nPlease enter the following 'extra' attributes\n");
1322 BIO_printf(bio_err,
1323 "to be sent with your certificate request\n");
1324 }
1325 i = -1;
1326start2: for (;;) {
1327 int ret;
1328 i++;
1329 if ((attr_sk == NULL) ||
1330 (sk_CONF_VALUE_num(attr_sk) <= i))
1331 break;
1332
1333 v = sk_CONF_VALUE_value(attr_sk, i);
1334 type = v->name;
1335 if ((nid = OBJ_txt2nid(type)) == NID_undef)
1336 goto start2;
1337 ret = snprintf(buf, sizeof buf, "%s_default", type);
1338 if (ret < 0 || ret >= sizeof(buf)) {
1339 BIO_printf(bio_err, "Name '%s' too long for default\n",
1340 v->name);
1341 return 0;
1342 }
1343 if ((def = NCONF_get_string(req_conf, attr_sect, buf))
1344 == NULL) {
1345 ERR_clear_error();
1346 def = "";
1347 }
1348 ret = snprintf(buf, sizeof buf, "%s_value", type);
1349 if (ret < 0 || ret >= sizeof(buf)) {
1350 BIO_printf(bio_err, "Name '%s' too long for value\n",
1351 v->name);
1352 return 0;
1353 }
1354 if ((value = NCONF_get_string(req_conf, attr_sect, buf))
1355 == NULL) {
1356 ERR_clear_error();
1357 value = NULL;
1358 }
1359 ret = snprintf(buf, sizeof buf, "%s_min", type);
1360 if (ret < 0 || ret >= sizeof(buf)) {
1361 BIO_printf(bio_err, "Name '%s' too long for min\n",
1362 v->name);
1363 return 0;
1364 }
1365 if (!NCONF_get_number(req_conf, attr_sect, buf, &n_min)) {
1366 ERR_clear_error();
1367 n_min = -1;
1368 }
1369 ret = snprintf(buf, sizeof buf, "%s_max", type);
1370 if (ret < 0 || ret >= sizeof(buf)) {
1371 BIO_printf(bio_err, "Name '%s' too long for max\n",
1372 v->name);
1373 return 0;
1374 }
1375 if (!NCONF_get_number(req_conf, attr_sect, buf, &n_max)) {
1376 ERR_clear_error();
1377 n_max = -1;
1378 }
1379 if (!add_attribute_object(req,
1380 v->value, def, value, nid, n_min, n_max, chtype))
1381 return 0;
1382 }
1383 }
1384 } else {
1385 BIO_printf(bio_err, "No template, please set one up.\n");
1386 return 0;
1387 }
1388
1389 return 1;
1390
1391}
1392
1393static int
1394auto_info(X509_REQ * req, STACK_OF(CONF_VALUE) * dn_sk,
1395 STACK_OF(CONF_VALUE) * attr_sk, int attribs, unsigned long chtype)
1396{
1397 int i;
1398 char *p, *q;
1399 char *type;
1400 CONF_VALUE *v;
1401 X509_NAME *subj;
1402
1403 subj = X509_REQ_get_subject_name(req);
1404
1405 for (i = 0; i < sk_CONF_VALUE_num(dn_sk); i++) {
1406 int mval;
1407 v = sk_CONF_VALUE_value(dn_sk, i);
1408 p = q = NULL;
1409 type = v->name;
1410 /*
1411 * Skip past any leading X. X: X, etc to allow for multiple
1412 * instances
1413 */
1414 for (p = v->name; *p; p++)
1415 if ((*p == ':') || (*p == ',') || (*p == '.')) {
1416 p++;
1417 if (*p)
1418 type = p;
1419 break;
1420 }
1421 if (*p == '+') {
1422 p++;
1423 mval = -1;
1424 } else
1425 mval = 0;
1426 if (!X509_NAME_add_entry_by_txt(subj, type, chtype,
1427 (unsigned char *) v->value, -1, -1, mval))
1428 return 0;
1429
1430 }
1431
1432 if (!X509_NAME_entry_count(subj)) {
1433 BIO_printf(bio_err, "error, no objects specified in config file\n");
1434 return 0;
1435 }
1436 if (attribs) {
1437 for (i = 0; i < sk_CONF_VALUE_num(attr_sk); i++) {
1438 v = sk_CONF_VALUE_value(attr_sk, i);
1439 if (!X509_REQ_add1_attr_by_txt(req, v->name, chtype,
1440 (unsigned char *) v->value, -1))
1441 return 0;
1442 }
1443 }
1444 return 1;
1445}
1446
1447
1448static int
1449add_DN_object(X509_NAME * n, char *text, const char *def, char *value,
1450 int nid, int n_min, int n_max, unsigned long chtype, int mval)
1451{
1452 int i, ret = 0;
1453 char buf[1024];
1454 start:
1455 if (!cfg.batch)
1456 BIO_printf(bio_err, "%s [%s]:", text, def);
1457 (void) BIO_flush(bio_err);
1458 if (value != NULL) {
1459 strlcpy(buf, value, sizeof buf);
1460 strlcat(buf, "\n", sizeof buf);
1461 BIO_printf(bio_err, "%s\n", value);
1462 } else {
1463 buf[0] = '\0';
1464 if (!cfg.batch) {
1465 if (!fgets(buf, sizeof buf, stdin))
1466 return 0;
1467 } else {
1468 buf[0] = '\n';
1469 buf[1] = '\0';
1470 }
1471 }
1472
1473 if (buf[0] == '\0')
1474 return (0);
1475 else if (buf[0] == '\n') {
1476 if ((def == NULL) || (def[0] == '\0'))
1477 return (1);
1478 strlcpy(buf, def, sizeof buf);
1479 strlcat(buf, "\n", sizeof buf);
1480 } else if ((buf[0] == '.') && (buf[1] == '\n'))
1481 return (1);
1482
1483 i = strlen(buf);
1484 if (buf[i - 1] != '\n') {
1485 BIO_printf(bio_err, "weird input :-(\n");
1486 return (0);
1487 }
1488 buf[--i] = '\0';
1489 if (!req_check_len(i, n_min, n_max))
1490 goto start;
1491 if (!X509_NAME_add_entry_by_NID(n, nid, chtype,
1492 (unsigned char *) buf, -1, -1, mval))
1493 goto err;
1494 ret = 1;
1495 err:
1496 return (ret);
1497}
1498
1499static int
1500add_attribute_object(X509_REQ * req, char *text, const char *def,
1501 char *value, int nid, int n_min,
1502 int n_max, unsigned long chtype)
1503{
1504 int i;
1505 static char buf[1024];
1506
1507 start:
1508 if (!cfg.batch)
1509 BIO_printf(bio_err, "%s [%s]:", text, def);
1510 (void) BIO_flush(bio_err);
1511 if (value != NULL) {
1512 strlcpy(buf, value, sizeof buf);
1513 strlcat(buf, "\n", sizeof buf);
1514 BIO_printf(bio_err, "%s\n", value);
1515 } else {
1516 buf[0] = '\0';
1517 if (!cfg.batch) {
1518 if (!fgets(buf, sizeof buf, stdin))
1519 return 0;
1520 } else {
1521 buf[0] = '\n';
1522 buf[1] = '\0';
1523 }
1524 }
1525
1526 if (buf[0] == '\0')
1527 return (0);
1528 else if (buf[0] == '\n') {
1529 if ((def == NULL) || (def[0] == '\0'))
1530 return (1);
1531 strlcpy(buf, def, sizeof buf);
1532 strlcat(buf, "\n", sizeof buf);
1533 } else if ((buf[0] == '.') && (buf[1] == '\n'))
1534 return (1);
1535
1536 i = strlen(buf);
1537 if (buf[i - 1] != '\n') {
1538 BIO_printf(bio_err, "weird input :-(\n");
1539 return (0);
1540 }
1541 buf[--i] = '\0';
1542 if (!req_check_len(i, n_min, n_max))
1543 goto start;
1544
1545 if (!X509_REQ_add1_attr_by_NID(req, nid, chtype,
1546 (unsigned char *) buf, -1)) {
1547 BIO_printf(bio_err, "Error adding attribute\n");
1548 ERR_print_errors(bio_err);
1549 goto err;
1550 }
1551 return (1);
1552 err:
1553 return (0);
1554}
1555
1556static int
1557req_check_len(int len, int n_min, int n_max)
1558{
1559 if ((n_min > 0) && (len < n_min)) {
1560 BIO_printf(bio_err, "string is too short, it needs to be at least %d bytes long\n", n_min);
1561 return (0);
1562 }
1563 if ((n_max >= 0) && (len > n_max)) {
1564 BIO_printf(bio_err, "string is too long, it needs to be less than %d bytes long\n", n_max);
1565 return (0);
1566 }
1567 return (1);
1568}
1569
1570/* Check if the end of a string matches 'end' */
1571static int
1572check_end(const char *str, const char *end)
1573{
1574 int elen, slen;
1575 const char *tmp;
1576 elen = strlen(end);
1577 slen = strlen(str);
1578 if (elen > slen)
1579 return 1;
1580 tmp = str + slen - elen;
1581 return strcmp(tmp, end);
1582}
1583
1584static EVP_PKEY_CTX *
1585set_keygen_ctx(BIO * err, const char *gstr, int *pkey_type,
1586 long *pkeylen, char **palgnam)
1587{
1588 EVP_PKEY_CTX *gctx = NULL;
1589 EVP_PKEY *param = NULL;
1590 long keylen = -1;
1591 BIO *pbio = NULL;
1592 const char *paramfile = NULL;
1593 const char *errstr;
1594
1595 if (gstr == NULL) {
1596 *pkey_type = EVP_PKEY_RSA;
1597 keylen = *pkeylen;
1598 } else if (gstr[0] >= '0' && gstr[0] <= '9') {
1599 *pkey_type = EVP_PKEY_RSA;
1600 keylen = strtonum(gstr, 0, LONG_MAX, &errstr);
1601 if (errstr) {
1602 BIO_printf(err, "bad algorithm %s: %s\n", gstr, errstr);
1603 return NULL;
1604 }
1605 *pkeylen = keylen;
1606 } else if (!strncmp(gstr, "param:", 6))
1607 paramfile = gstr + 6;
1608 else {
1609 const char *p = strchr(gstr, ':');
1610 int len;
1611 const EVP_PKEY_ASN1_METHOD *ameth;
1612
1613 if (p)
1614 len = p - gstr;
1615 else
1616 len = strlen(gstr);
1617
1618 ameth = EVP_PKEY_asn1_find_str(NULL, gstr, len);
1619
1620 if (!ameth) {
1621 BIO_printf(err, "Unknown algorithm %.*s\n", len, gstr);
1622 return NULL;
1623 }
1624 EVP_PKEY_asn1_get0_info(NULL, pkey_type, NULL, NULL, NULL,
1625 ameth);
1626 if (*pkey_type == EVP_PKEY_RSA) {
1627 if (p) {
1628 keylen = strtonum(p + 1, 0, LONG_MAX, &errstr);
1629 if (errstr) {
1630 BIO_printf(err, "bad algorithm %s: %s\n",
1631 p + 1, errstr);
1632 return NULL;
1633 }
1634 *pkeylen = keylen;
1635 } else
1636 keylen = *pkeylen;
1637 } else if (p)
1638 paramfile = p + 1;
1639 }
1640
1641 if (paramfile) {
1642 pbio = BIO_new_file(paramfile, "r");
1643 if (!pbio) {
1644 BIO_printf(err, "Can't open parameter file %s\n",
1645 paramfile);
1646 return NULL;
1647 }
1648 param = PEM_read_bio_Parameters(pbio, NULL);
1649
1650 if (!param) {
1651 X509 *x;
1652 (void) BIO_reset(pbio);
1653 x = PEM_read_bio_X509(pbio, NULL, NULL, NULL);
1654 if (x) {
1655 param = X509_get_pubkey(x);
1656 X509_free(x);
1657 }
1658 }
1659 BIO_free(pbio);
1660
1661 if (!param) {
1662 BIO_printf(err, "Error reading parameter file %s\n",
1663 paramfile);
1664 return NULL;
1665 }
1666 if (*pkey_type == -1)
1667 *pkey_type = EVP_PKEY_id(param);
1668 else if (*pkey_type != EVP_PKEY_base_id(param)) {
1669 BIO_printf(err, "Key Type does not match parameters\n");
1670 EVP_PKEY_free(param);
1671 return NULL;
1672 }
1673 }
1674 if (palgnam) {
1675 const EVP_PKEY_ASN1_METHOD *ameth;
1676 const char *anam;
1677 ameth = EVP_PKEY_asn1_find(NULL, *pkey_type);
1678 if (!ameth) {
1679 BIO_puts(err, "Internal error: can't find key algorithm\n");
1680 return NULL;
1681 }
1682 EVP_PKEY_asn1_get0_info(NULL, NULL, NULL, NULL, &anam, ameth);
1683 *palgnam = strdup(anam);
1684 }
1685 if (param) {
1686 gctx = EVP_PKEY_CTX_new(param, NULL);
1687 *pkeylen = EVP_PKEY_bits(param);
1688 EVP_PKEY_free(param);
1689 } else
1690 gctx = EVP_PKEY_CTX_new_id(*pkey_type, NULL);
1691
1692 if (!gctx) {
1693 BIO_puts(err, "Error allocating keygen context\n");
1694 ERR_print_errors(err);
1695 return NULL;
1696 }
1697 if (EVP_PKEY_keygen_init(gctx) <= 0) {
1698 BIO_puts(err, "Error initializing keygen context\n");
1699 ERR_print_errors(err);
1700 EVP_PKEY_CTX_free(gctx);
1701 return NULL;
1702 }
1703 if ((*pkey_type == EVP_PKEY_RSA) && (keylen != -1)) {
1704 if (EVP_PKEY_CTX_set_rsa_keygen_bits(gctx, keylen) <= 0) {
1705 BIO_puts(err, "Error setting RSA keysize\n");
1706 ERR_print_errors(err);
1707 EVP_PKEY_CTX_free(gctx);
1708 return NULL;
1709 }
1710 }
1711
1712 return gctx;
1713}
1714
1715static int
1716genpkey_cb(EVP_PKEY_CTX * ctx)
1717{
1718 char c = '*';
1719 BIO *b = EVP_PKEY_CTX_get_app_data(ctx);
1720 int p;
1721 p = EVP_PKEY_CTX_get_keygen_info(ctx, 0);
1722 if (p == 0)
1723 c = '.';
1724 if (p == 1)
1725 c = '+';
1726 if (p == 2)
1727 c = '*';
1728 if (p == 3)
1729 c = '\n';
1730 BIO_write(b, &c, 1);
1731 (void) BIO_flush(b);
1732 return 1;
1733}
1734
1735static int
1736do_sign_init(BIO * err, EVP_MD_CTX * ctx, EVP_PKEY * pkey,
1737 const EVP_MD * md, STACK_OF(OPENSSL_STRING) * sigopts)
1738{
1739 EVP_PKEY_CTX *pkctx = NULL;
1740 int default_nid;
1741 int i;
1742
1743 if (EVP_PKEY_get_default_digest_nid(pkey, &default_nid) == 2 &&
1744 default_nid == NID_undef) {
1745 /* The digest is required to be EVP_md_null() (EdDSA). */
1746 md = EVP_md_null();
1747 }
1748
1749 if (!EVP_DigestSignInit(ctx, &pkctx, md, NULL, pkey))
1750 return 0;
1751 for (i = 0; i < sk_OPENSSL_STRING_num(sigopts); i++) {
1752 char *sigopt = sk_OPENSSL_STRING_value(sigopts, i);
1753 if (pkey_ctrl_string(pkctx, sigopt) <= 0) {
1754 BIO_printf(err, "parameter error \"%s\"\n", sigopt);
1755 ERR_print_errors(bio_err);
1756 return 0;
1757 }
1758 }
1759 return 1;
1760}
1761
1762int
1763do_X509_sign(BIO * err, X509 * x, EVP_PKEY * pkey, const EVP_MD * md,
1764 STACK_OF(OPENSSL_STRING) * sigopts)
1765{
1766 EVP_MD_CTX *mctx;
1767 int rv;
1768
1769 if ((mctx = EVP_MD_CTX_new()) == NULL)
1770 return 0;
1771
1772 rv = do_sign_init(err, mctx, pkey, md, sigopts);
1773 if (rv > 0)
1774 rv = X509_sign_ctx(x, mctx);
1775
1776 EVP_MD_CTX_free(mctx);
1777
1778 return rv > 0;
1779}
1780
1781
1782int
1783do_X509_REQ_sign(BIO * err, X509_REQ * x, EVP_PKEY * pkey, const EVP_MD * md,
1784 STACK_OF(OPENSSL_STRING) * sigopts)
1785{
1786 EVP_MD_CTX *mctx;
1787 int rv;
1788
1789 if ((mctx = EVP_MD_CTX_new()) == NULL)
1790 return 0;
1791
1792 rv = do_sign_init(err, mctx, pkey, md, sigopts);
1793 if (rv > 0)
1794 rv = X509_REQ_sign_ctx(x, mctx);
1795
1796 EVP_MD_CTX_free(mctx);
1797
1798 return rv > 0;
1799}
1800
1801
1802
1803int
1804do_X509_CRL_sign(BIO * err, X509_CRL * x, EVP_PKEY * pkey, const EVP_MD * md,
1805 STACK_OF(OPENSSL_STRING) * sigopts)
1806{
1807 int rv;
1808 EVP_MD_CTX *mctx;
1809
1810 if ((mctx = EVP_MD_CTX_new()) == NULL)
1811 return 0;
1812
1813 rv = do_sign_init(err, mctx, pkey, md, sigopts);
1814 if (rv > 0)
1815 rv = X509_CRL_sign_ctx(x, mctx);
1816
1817 EVP_MD_CTX_free(mctx);
1818
1819 return rv > 0;
1820}
1821
1822static unsigned long
1823ext_name_hash(const OPENSSL_STRING *a)
1824{
1825 return lh_strhash((const char *)a);
1826}
1827
1828static int
1829ext_name_cmp(const OPENSSL_STRING *a, const OPENSSL_STRING *b)
1830{
1831 return strcmp((const char *)a, (const char *)b);
1832}
1833
1834static void
1835exts_cleanup(OPENSSL_STRING *x)
1836{
1837 free((char *)x);
1838}
1839
1840/*
1841 * Is the |kv| key already duplicated ? This is remarkably tricky to get right.
1842 * Return 0 if unique, -1 on runtime error; 1 if found or a syntax error.
1843 */
1844static int
1845duplicated(LHASH_OF(OPENSSL_STRING) *addexts, char *kv)
1846{
1847 char *p;
1848 size_t off;
1849
1850 /* Check syntax. */
1851 /* Skip leading whitespace, make a copy. */
1852 while (*kv && isspace(*kv))
1853 if (*++kv == '\0')
1854 return 1;
1855 if ((p = strchr(kv, '=')) == NULL)
1856 return 1;
1857 off = p - kv;
1858 if ((kv = strdup(kv)) == NULL)
1859 return -1;
1860
1861 /* Skip trailing space before the equal sign. */
1862 for (p = kv + off; p > kv; --p)
1863 if (!isspace(p[-1]))
1864 break;
1865 if (p == kv) {
1866 free(kv);
1867 return 1;
1868 }
1869 *p = '\0';
1870
1871 /* See if "key" is there by attempting to add it. */
1872 if ((p = (char *)lh_OPENSSL_STRING_insert(addexts, (OPENSSL_STRING*)kv))
1873 != NULL || lh_OPENSSL_STRING_error(addexts)) {
1874 free(p != NULL ? p : kv);
1875 return -1;
1876 }
1877
1878 return 0;
1879}
generated by cgit v1.2.3-55-g6feb (git 2.39.1) at 2025-08-09 13:45:36 +0000