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source: vbox/trunk/src/libs/openssl-3.1.5/apps/req.c

Last change on this file was 104078, checked in by vboxsync, 2 months ago

openssl-3.1.5: Applied and adjusted our OpenSSL changes to 3.1.4. bugref:10638
File size: 53.7 KB
Line 
1/*
2 * Copyright 1995-2024 The OpenSSL Project Authors. All Rights Reserved.
3 *
4 * Licensed under the Apache License 2.0 (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 <stdio.h>
11#include <stdlib.h>
12#include <time.h>
13#include <string.h>
14#include <ctype.h>
15#include "apps.h"
16#include "progs.h"
17#include <openssl/core_names.h>
18#include <openssl/bio.h>
19#include <openssl/evp.h>
20#include <openssl/conf.h>
21#include <openssl/err.h>
22#include <openssl/asn1.h>
23#include <openssl/x509.h>
24#include <openssl/x509v3.h>
25#include <openssl/objects.h>
26#include <openssl/pem.h>
27#include <openssl/bn.h>
28#include <openssl/lhash.h>
29#include <openssl/rsa.h>
30#ifndef OPENSSL_NO_DSA
31# include <openssl/dsa.h>
32#endif
33
34#define BITS "default_bits"
35#define KEYFILE "default_keyfile"
36#define PROMPT "prompt"
37#define DISTINGUISHED_NAME "distinguished_name"
38#define ATTRIBUTES "attributes"
39#define V3_EXTENSIONS "x509_extensions"
40#define REQ_EXTENSIONS "req_extensions"
41#define STRING_MASK "string_mask"
42#define UTF8_IN "utf8"
43
44#define DEFAULT_KEY_LENGTH 2048
45#define MIN_KEY_LENGTH 512
46#define DEFAULT_DAYS 30 /* default cert validity period in days */
47#define UNSET_DAYS -2 /* -1 may be used for testing expiration checks */
48#define EXT_COPY_UNSET -1
49
50static int make_REQ(X509_REQ *req, EVP_PKEY *pkey, X509_NAME *fsubj,
51 int mutlirdn, int attribs, unsigned long chtype);
52static int prompt_info(X509_REQ *req,
53 STACK_OF(CONF_VALUE) *dn_sk, const char *dn_sect,
54 STACK_OF(CONF_VALUE) *attr_sk, const char *attr_sect,
55 int attribs, unsigned long chtype);
56static int auto_info(X509_REQ *req, STACK_OF(CONF_VALUE) *sk,
57 STACK_OF(CONF_VALUE) *attr, int attribs,
58 unsigned long chtype);
59static int add_attribute_object(X509_REQ *req, char *text, const char *def,
60 char *value, int nid, int n_min, int n_max,
61 unsigned long chtype);
62static int add_DN_object(X509_NAME *n, char *text, const char *def,
63 char *value, int nid, int n_min, int n_max,
64 unsigned long chtype, int mval);
65static int genpkey_cb(EVP_PKEY_CTX *ctx);
66static int build_data(char *text, const char *def, char *value,
67 int n_min, int n_max, char *buf, const int buf_size,
68 const char *desc1, const char *desc2);
69static int req_check_len(int len, int n_min, int n_max);
70static int check_end(const char *str, const char *end);
71static int join(char buf[], size_t buf_size, const char *name,
72 const char *tail, const char *desc);
73static EVP_PKEY_CTX *set_keygen_ctx(const char *gstr,
74 char **pkeytype, long *pkeylen,
75 ENGINE *keygen_engine);
76
77static const char *section = "req";
78static CONF *req_conf = NULL;
79static CONF *addext_conf = NULL;
80static int batch = 0;
81
82typedef enum OPTION_choice {
83 OPT_COMMON,
84 OPT_INFORM, OPT_OUTFORM, OPT_ENGINE, OPT_KEYGEN_ENGINE, OPT_KEY,
85 OPT_PUBKEY, OPT_NEW, OPT_CONFIG, OPT_KEYFORM, OPT_IN, OPT_OUT,
86 OPT_KEYOUT, OPT_PASSIN, OPT_PASSOUT, OPT_NEWKEY,
87 OPT_PKEYOPT, OPT_SIGOPT, OPT_VFYOPT, OPT_BATCH, OPT_NEWHDR, OPT_MODULUS,
88 OPT_VERIFY, OPT_NOENC, OPT_NODES, OPT_NOOUT, OPT_VERBOSE, OPT_UTF8,
89 OPT_NAMEOPT, OPT_REQOPT, OPT_SUBJ, OPT_SUBJECT, OPT_TEXT, OPT_X509,
90 OPT_CA, OPT_CAKEY,
91 OPT_MULTIVALUE_RDN, OPT_DAYS, OPT_SET_SERIAL,
92 OPT_COPY_EXTENSIONS, OPT_ADDEXT, OPT_EXTENSIONS,
93 OPT_REQEXTS, OPT_PRECERT, OPT_MD,
94 OPT_SECTION,
95 OPT_R_ENUM, OPT_PROV_ENUM
96} OPTION_CHOICE;
97
98const OPTIONS req_options[] = {
99 OPT_SECTION("General"),
100 {"help", OPT_HELP, '-', "Display this summary"},
101#ifndef OPENSSL_NO_ENGINE
102 {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
103 {"keygen_engine", OPT_KEYGEN_ENGINE, 's',
104 "Specify engine to be used for key generation operations"},
105#endif
106 {"in", OPT_IN, '<', "X.509 request input file (default stdin)"},
107 {"inform", OPT_INFORM, 'F', "Input format - DER or PEM"},
108 {"verify", OPT_VERIFY, '-', "Verify self-signature on the request"},
109
110 OPT_SECTION("Certificate"),
111 {"new", OPT_NEW, '-', "New request"},
112 {"config", OPT_CONFIG, '<', "Request template file"},
113 {"section", OPT_SECTION, 's', "Config section to use (default \"req\")"},
114 {"utf8", OPT_UTF8, '-', "Input characters are UTF8 (default ASCII)"},
115 {"nameopt", OPT_NAMEOPT, 's', "Certificate subject/issuer name printing options"},
116 {"reqopt", OPT_REQOPT, 's', "Various request text options"},
117 {"text", OPT_TEXT, '-', "Text form of request"},
118 {"x509", OPT_X509, '-',
119 "Output an X.509 certificate structure instead of a cert request"},
120 {"CA", OPT_CA, '<', "Issuer cert to use for signing a cert, implies -x509"},
121 {"CAkey", OPT_CAKEY, 's',
122 "Issuer private key to use with -CA; default is -CA arg"},
123 {OPT_MORE_STR, 1, 1, "(Required by some CA's)"},
124 {"subj", OPT_SUBJ, 's', "Set or modify subject of request or cert"},
125 {"subject", OPT_SUBJECT, '-',
126 "Print the subject of the output request or cert"},
127 {"multivalue-rdn", OPT_MULTIVALUE_RDN, '-',
128 "Deprecated; multi-valued RDNs support is always on."},
129 {"days", OPT_DAYS, 'p', "Number of days cert is valid for"},
130 {"set_serial", OPT_SET_SERIAL, 's', "Serial number to use"},
131 {"copy_extensions", OPT_COPY_EXTENSIONS, 's',
132 "copy extensions from request when using -x509"},
133 {"addext", OPT_ADDEXT, 's',
134 "Additional cert extension key=value pair (may be given more than once)"},
135 {"extensions", OPT_EXTENSIONS, 's',
136 "Cert extension section (override value in config file)"},
137 {"reqexts", OPT_REQEXTS, 's',
138 "Request extension section (override value in config file)"},
139 {"precert", OPT_PRECERT, '-',
140 "Add a poison extension to the generated cert (implies -new)"},
141
142 OPT_SECTION("Keys and Signing"),
143 {"key", OPT_KEY, 's', "Key for signing, and to include unless -in given"},
144 {"keyform", OPT_KEYFORM, 'f', "Key file format (ENGINE, other values ignored)"},
145 {"pubkey", OPT_PUBKEY, '-', "Output public key"},
146 {"keyout", OPT_KEYOUT, '>', "File to write private key to"},
147 {"passin", OPT_PASSIN, 's', "Private key and certificate password source"},
148 {"passout", OPT_PASSOUT, 's', "Output file pass phrase source"},
149 {"newkey", OPT_NEWKEY, 's',
150 "Generate new key with [<alg>:]<nbits> or <alg>[:<file>] or param:<file>"},
151 {"pkeyopt", OPT_PKEYOPT, 's', "Public key options as opt:value"},
152 {"sigopt", OPT_SIGOPT, 's', "Signature parameter in n:v form"},
153 {"vfyopt", OPT_VFYOPT, 's', "Verification parameter in n:v form"},
154 {"", OPT_MD, '-', "Any supported digest"},
155
156 OPT_SECTION("Output"),
157 {"out", OPT_OUT, '>', "Output file"},
158 {"outform", OPT_OUTFORM, 'F', "Output format - DER or PEM"},
159 {"batch", OPT_BATCH, '-',
160 "Do not ask anything during request generation"},
161 {"verbose", OPT_VERBOSE, '-', "Verbose output"},
162 {"noenc", OPT_NOENC, '-', "Don't encrypt private keys"},
163 {"nodes", OPT_NODES, '-', "Don't encrypt private keys; deprecated"},
164 {"noout", OPT_NOOUT, '-', "Do not output REQ"},
165 {"newhdr", OPT_NEWHDR, '-', "Output \"NEW\" in the header lines"},
166 {"modulus", OPT_MODULUS, '-', "RSA modulus"},
167
168 OPT_R_OPTIONS,
169 OPT_PROV_OPTIONS,
170 {NULL}
171};
172
173/*
174 * An LHASH of strings, where each string is an extension name.
175 */
176static unsigned long ext_name_hash(const OPENSSL_STRING *a)
177{
178 return OPENSSL_LH_strhash((const char *)a);
179}
180
181static int ext_name_cmp(const OPENSSL_STRING *a, const OPENSSL_STRING *b)
182{
183 return strcmp((const char *)a, (const char *)b);
184}
185
186static void exts_cleanup(OPENSSL_STRING *x)
187{
188 OPENSSL_free((char *)x);
189}
190
191/*
192 * Is the |kv| key already duplicated? This is remarkably tricky to get right.
193 * Return 0 if unique, -1 on runtime error; 1 if found or a syntax error.
194 */
195static int duplicated(LHASH_OF(OPENSSL_STRING) *addexts, char *kv)
196{
197 char *p;
198 size_t off;
199
200 /* Check syntax. */
201 /* Skip leading whitespace, make a copy. */
202 while (*kv && isspace(_UC(*kv)))
203 if (*++kv == '\0')
204 return 1;
205 if ((p = strchr(kv, '=')) == NULL)
206 return 1;
207 off = p - kv;
208 if ((kv = OPENSSL_strdup(kv)) == NULL)
209 return -1;
210
211 /* Skip trailing space before the equal sign. */
212 for (p = kv + off; p > kv; --p)
213 if (!isspace(_UC(p[-1])))
214 break;
215 if (p == kv) {
216 OPENSSL_free(kv);
217 return 1;
218 }
219 *p = '\0';
220
221 /* Finally have a clean "key"; see if it's there [by attempt to add it]. */
222 p = (char *)lh_OPENSSL_STRING_insert(addexts, (OPENSSL_STRING *)kv);
223 if (p != NULL) {
224 OPENSSL_free(p);
225 return 1;
226 } else if (lh_OPENSSL_STRING_error(addexts)) {
227 OPENSSL_free(kv);
228 return -1;
229 }
230
231 return 0;
232}
233
234int req_main(int argc, char **argv)
235{
236 ASN1_INTEGER *serial = NULL;
237 BIO *out = NULL;
238 ENGINE *e = NULL, *gen_eng = NULL;
239 EVP_PKEY *pkey = NULL, *CAkey = NULL;
240 EVP_PKEY_CTX *genctx = NULL;
241 STACK_OF(OPENSSL_STRING) *pkeyopts = NULL, *sigopts = NULL, *vfyopts = NULL;
242 LHASH_OF(OPENSSL_STRING) *addexts = NULL;
243 X509 *new_x509 = NULL, *CAcert = NULL;
244 X509_REQ *req = NULL;
245 EVP_CIPHER *cipher = NULL;
246 EVP_MD *md = NULL;
247 int ext_copy = EXT_COPY_UNSET;
248 BIO *addext_bio = NULL;
249 char *extensions = NULL;
250 const char *infile = NULL, *CAfile = NULL, *CAkeyfile = NULL;
251 char *outfile = NULL, *keyfile = NULL, *digest = NULL;
252 char *keyalgstr = NULL, *p, *prog, *passargin = NULL, *passargout = NULL;
253 char *passin = NULL, *passout = NULL;
254 char *nofree_passin = NULL, *nofree_passout = NULL;
255 char *req_exts = NULL, *subj = NULL;
256 X509_NAME *fsubj = NULL;
257 char *template = default_config_file, *keyout = NULL;
258 const char *keyalg = NULL;
259 OPTION_CHOICE o;
260 int days = UNSET_DAYS;
261 int ret = 1, gen_x509 = 0, i = 0, newreq = 0, verbose = 0;
262 int informat = FORMAT_UNDEF, outformat = FORMAT_PEM, keyform = FORMAT_UNDEF;
263 int modulus = 0, multirdn = 1, verify = 0, noout = 0, text = 0;
264 int noenc = 0, newhdr = 0, subject = 0, pubkey = 0, precert = 0;
265 long newkey_len = -1;
266 unsigned long chtype = MBSTRING_ASC, reqflag = 0;
267
268#ifndef OPENSSL_NO_DES
269 cipher = (EVP_CIPHER *)EVP_des_ede3_cbc();
270#endif
271
272 prog = opt_init(argc, argv, req_options);
273 while ((o = opt_next()) != OPT_EOF) {
274 switch (o) {
275 case OPT_EOF:
276 case OPT_ERR:
277 opthelp:
278 BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
279 goto end;
280 case OPT_HELP:
281 opt_help(req_options);
282 ret = 0;
283 goto end;
284 case OPT_INFORM:
285 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &informat))
286 goto opthelp;
287 break;
288 case OPT_OUTFORM:
289 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &outformat))
290 goto opthelp;
291 break;
292 case OPT_ENGINE:
293 e = setup_engine(opt_arg(), 0);
294 break;
295 case OPT_KEYGEN_ENGINE:
296#ifndef OPENSSL_NO_ENGINE
297 gen_eng = setup_engine(opt_arg(), 0);
298 if (gen_eng == NULL) {
299 BIO_printf(bio_err, "Can't find keygen engine %s\n", *argv);
300 goto opthelp;
301 }
302#endif
303 break;
304 case OPT_KEY:
305 keyfile = opt_arg();
306 break;
307 case OPT_PUBKEY:
308 pubkey = 1;
309 break;
310 case OPT_NEW:
311 newreq = 1;
312 break;
313 case OPT_CONFIG:
314 template = opt_arg();
315 break;
316 case OPT_SECTION:
317 section = opt_arg();
318 break;
319 case OPT_KEYFORM:
320 if (!opt_format(opt_arg(), OPT_FMT_ANY, &keyform))
321 goto opthelp;
322 break;
323 case OPT_IN:
324 infile = opt_arg();
325 break;
326 case OPT_OUT:
327 outfile = opt_arg();
328 break;
329 case OPT_KEYOUT:
330 keyout = opt_arg();
331 break;
332 case OPT_PASSIN:
333 passargin = opt_arg();
334 break;
335 case OPT_PASSOUT:
336 passargout = opt_arg();
337 break;
338 case OPT_R_CASES:
339 if (!opt_rand(o))
340 goto end;
341 break;
342 case OPT_PROV_CASES:
343 if (!opt_provider(o))
344 goto end;
345 break;
346 case OPT_NEWKEY:
347 keyalg = opt_arg();
348 newreq = 1;
349 break;
350 case OPT_PKEYOPT:
351 if (pkeyopts == NULL)
352 pkeyopts = sk_OPENSSL_STRING_new_null();
353 if (pkeyopts == NULL
354 || !sk_OPENSSL_STRING_push(pkeyopts, opt_arg()))
355 goto opthelp;
356 break;
357 case OPT_SIGOPT:
358 if (!sigopts)
359 sigopts = sk_OPENSSL_STRING_new_null();
360 if (!sigopts || !sk_OPENSSL_STRING_push(sigopts, opt_arg()))
361 goto opthelp;
362 break;
363 case OPT_VFYOPT:
364 if (!vfyopts)
365 vfyopts = sk_OPENSSL_STRING_new_null();
366 if (!vfyopts || !sk_OPENSSL_STRING_push(vfyopts, opt_arg()))
367 goto opthelp;
368 break;
369 case OPT_BATCH:
370 batch = 1;
371 break;
372 case OPT_NEWHDR:
373 newhdr = 1;
374 break;
375 case OPT_MODULUS:
376 modulus = 1;
377 break;
378 case OPT_VERIFY:
379 verify = 1;
380 break;
381 case OPT_NODES:
382 case OPT_NOENC:
383 noenc = 1;
384 break;
385 case OPT_NOOUT:
386 noout = 1;
387 break;
388 case OPT_VERBOSE:
389 verbose = 1;
390 break;
391 case OPT_UTF8:
392 chtype = MBSTRING_UTF8;
393 break;
394 case OPT_NAMEOPT:
395 if (!set_nameopt(opt_arg()))
396 goto opthelp;
397 break;
398 case OPT_REQOPT:
399 if (!set_cert_ex(&reqflag, opt_arg()))
400 goto opthelp;
401 break;
402 case OPT_TEXT:
403 text = 1;
404 break;
405 case OPT_X509:
406 gen_x509 = 1;
407 break;
408 case OPT_CA:
409 CAfile = opt_arg();
410 gen_x509 = 1;
411 break;
412 case OPT_CAKEY:
413 CAkeyfile = opt_arg();
414 break;
415 case OPT_DAYS:
416 days = atoi(opt_arg());
417 if (days < -1) {
418 BIO_printf(bio_err, "%s: -days parameter arg must be >= -1\n",
419 prog);
420 goto end;
421 }
422 break;
423 case OPT_SET_SERIAL:
424 if (serial != NULL) {
425 BIO_printf(bio_err, "Serial number supplied twice\n");
426 goto opthelp;
427 }
428 serial = s2i_ASN1_INTEGER(NULL, opt_arg());
429 if (serial == NULL)
430 goto opthelp;
431 break;
432 case OPT_SUBJECT:
433 subject = 1;
434 break;
435 case OPT_SUBJ:
436 subj = opt_arg();
437 break;
438 case OPT_MULTIVALUE_RDN:
439 /* obsolete */
440 break;
441 case OPT_COPY_EXTENSIONS:
442 if (!set_ext_copy(&ext_copy, opt_arg())) {
443 BIO_printf(bio_err, "Invalid extension copy option: \"%s\"\n",
444 opt_arg());
445 goto end;
446 }
447 break;
448 case OPT_ADDEXT:
449 p = opt_arg();
450 if (addexts == NULL) {
451 addexts = lh_OPENSSL_STRING_new(ext_name_hash, ext_name_cmp);
452 addext_bio = BIO_new(BIO_s_mem());
453 if (addexts == NULL || addext_bio == NULL)
454 goto end;
455 }
456 i = duplicated(addexts, p);
457 if (i == 1) {
458 BIO_printf(bio_err, "Duplicate extension: %s\n", p);
459 goto opthelp;
460 }
461 if (i < 0 || BIO_printf(addext_bio, "%s\n", p) < 0)
462 goto end;
463 break;
464 case OPT_EXTENSIONS:
465 extensions = opt_arg();
466 break;
467 case OPT_REQEXTS:
468 req_exts = opt_arg();
469 break;
470 case OPT_PRECERT:
471 newreq = precert = 1;
472 break;
473 case OPT_MD:
474 digest = opt_unknown();
475 break;
476 }
477 }
478
479 /* No extra arguments. */
480 argc = opt_num_rest();
481 if (argc != 0)
482 goto opthelp;
483
484 if (!app_RAND_load())
485 goto end;
486
487 if (!gen_x509) {
488 if (days != UNSET_DAYS)
489 BIO_printf(bio_err, "Ignoring -days without -x509; not generating a certificate\n");
490 if (ext_copy == EXT_COPY_NONE)
491 BIO_printf(bio_err, "Ignoring -copy_extensions 'none' when -x509 is not given\n");
492 }
493 if (gen_x509 && infile == NULL)
494 newreq = 1;
495
496 if (!app_passwd(passargin, passargout, &passin, &passout)) {
497 BIO_printf(bio_err, "Error getting passwords\n");
498 goto end;
499 }
500
501 if ((req_conf = app_load_config_verbose(template, verbose)) == NULL)
502 goto end;
503 if (addext_bio != NULL) {
504 if (verbose)
505 BIO_printf(bio_err,
506 "Using additional configuration from -addext options\n");
507 if ((addext_conf = app_load_config_bio(addext_bio, NULL)) == NULL)
508 goto end;
509 }
510 if (template != default_config_file && !app_load_modules(req_conf))
511 goto end;
512
513 if (req_conf != NULL) {
514 p = NCONF_get_string(req_conf, NULL, "oid_file");
515 if (p == NULL)
516 ERR_clear_error();
517 if (p != NULL) {
518 BIO *oid_bio = BIO_new_file(p, "r");
519
520 if (oid_bio == NULL) {
521 if (verbose)
522 BIO_printf(bio_err,
523 "Problems opening '%s' for extra OIDs\n", p);
524 } else {
525 OBJ_create_objects(oid_bio);
526 BIO_free(oid_bio);
527 }
528 }
529 }
530 if (!add_oid_section(req_conf))
531 goto end;
532
533 /* Check that any specified digest is fetchable */
534 if (digest != NULL) {
535 if (!opt_md(digest, &md)) {
536 ERR_clear_error();
537 goto opthelp;
538 }
539 EVP_MD_free(md);
540 } else {
541 /* No digest specified, default to configuration */
542 p = NCONF_get_string(req_conf, section, "default_md");
543 if (p == NULL)
544 ERR_clear_error();
545 else
546 digest = p;
547 }
548
549 if (extensions == NULL) {
550 extensions = NCONF_get_string(req_conf, section, V3_EXTENSIONS);
551 if (extensions == NULL)
552 ERR_clear_error();
553 }
554 if (extensions != NULL) {
555 /* Check syntax of file */
556 X509V3_CTX ctx;
557
558 X509V3_set_ctx_test(&ctx);
559 X509V3_set_nconf(&ctx, req_conf);
560 if (!X509V3_EXT_add_nconf(req_conf, &ctx, extensions, NULL)) {
561 BIO_printf(bio_err,
562 "Error checking x509 extension section %s\n",
563 extensions);
564 goto end;
565 }
566 }
567 if (addext_conf != NULL) {
568 /* Check syntax of command line extensions */
569 X509V3_CTX ctx;
570
571 X509V3_set_ctx_test(&ctx);
572 X509V3_set_nconf(&ctx, addext_conf);
573 if (!X509V3_EXT_add_nconf(addext_conf, &ctx, "default", NULL)) {
574 BIO_printf(bio_err, "Error checking extensions defined using -addext\n");
575 goto end;
576 }
577 }
578
579 if (passin == NULL) {
580 passin = nofree_passin =
581 NCONF_get_string(req_conf, section, "input_password");
582 if (passin == NULL)
583 ERR_clear_error();
584 }
585
586 if (passout == NULL) {
587 passout = nofree_passout =
588 NCONF_get_string(req_conf, section, "output_password");
589 if (passout == NULL)
590 ERR_clear_error();
591 }
592
593 p = NCONF_get_string(req_conf, section, STRING_MASK);
594 if (p == NULL)
595 ERR_clear_error();
596
597 if (p != NULL && !ASN1_STRING_set_default_mask_asc(p)) {
598 BIO_printf(bio_err, "Invalid global string mask setting %s\n", p);
599 goto end;
600 }
601
602 if (chtype != MBSTRING_UTF8) {
603 p = NCONF_get_string(req_conf, section, UTF8_IN);
604 if (p == NULL)
605 ERR_clear_error();
606 else if (strcmp(p, "yes") == 0)
607 chtype = MBSTRING_UTF8;
608 }
609
610 if (req_exts == NULL) {
611 req_exts = NCONF_get_string(req_conf, section, REQ_EXTENSIONS);
612 if (req_exts == NULL)
613 ERR_clear_error();
614 }
615 if (req_exts != NULL) {
616 /* Check syntax of file */
617 X509V3_CTX ctx;
618
619 X509V3_set_ctx_test(&ctx);
620 X509V3_set_nconf(&ctx, req_conf);
621 if (!X509V3_EXT_add_nconf(req_conf, &ctx, req_exts, NULL)) {
622 BIO_printf(bio_err,
623 "Error checking request extension section %s\n",
624 req_exts);
625 goto end;
626 }
627 }
628
629 if (keyfile != NULL) {
630 pkey = load_key(keyfile, keyform, 0, passin, e, "private key");
631 if (pkey == NULL)
632 goto end;
633 app_RAND_load_conf(req_conf, section);
634 }
635 if (newreq && pkey == NULL) {
636 app_RAND_load_conf(req_conf, section);
637
638 if (!NCONF_get_number(req_conf, section, BITS, &newkey_len)) {
639 ERR_clear_error();
640 newkey_len = DEFAULT_KEY_LENGTH;
641 }
642
643 genctx = set_keygen_ctx(keyalg, &keyalgstr, &newkey_len, gen_eng);
644 if (genctx == NULL)
645 goto end;
646
647 if (newkey_len < MIN_KEY_LENGTH
648 && (EVP_PKEY_CTX_is_a(genctx, "RSA")
649 || EVP_PKEY_CTX_is_a(genctx, "RSA-PSS")
650 || EVP_PKEY_CTX_is_a(genctx, "DSA"))) {
651 BIO_printf(bio_err, "Private key length too short, needs to be at least %d bits, not %ld.\n",
652 MIN_KEY_LENGTH, newkey_len);
653 goto end;
654 }
655
656 if (newkey_len > OPENSSL_RSA_MAX_MODULUS_BITS
657 && (EVP_PKEY_CTX_is_a(genctx, "RSA")
658 || EVP_PKEY_CTX_is_a(genctx, "RSA-PSS")))
659 BIO_printf(bio_err,
660 "Warning: It is not recommended to use more than %d bit for RSA keys.\n"
661 " Your key size is %ld! Larger key size may behave not as expected.\n",
662 OPENSSL_RSA_MAX_MODULUS_BITS, newkey_len);
663
664#ifndef OPENSSL_NO_DSA
665 if (EVP_PKEY_CTX_is_a(genctx, "DSA")
666 && newkey_len > OPENSSL_DSA_MAX_MODULUS_BITS)
667 BIO_printf(bio_err,
668 "Warning: It is not recommended to use more than %d bit for DSA keys.\n"
669 " Your key size is %ld! Larger key size may behave not as expected.\n",
670 OPENSSL_DSA_MAX_MODULUS_BITS, newkey_len);
671#endif
672
673 if (pkeyopts != NULL) {
674 char *genopt;
675 for (i = 0; i < sk_OPENSSL_STRING_num(pkeyopts); i++) {
676 genopt = sk_OPENSSL_STRING_value(pkeyopts, i);
677 if (pkey_ctrl_string(genctx, genopt) <= 0) {
678 BIO_printf(bio_err, "Key parameter error \"%s\"\n", genopt);
679 goto end;
680 }
681 }
682 }
683
684 EVP_PKEY_CTX_set_cb(genctx, genpkey_cb);
685 EVP_PKEY_CTX_set_app_data(genctx, bio_err);
686
687 pkey = app_keygen(genctx, keyalgstr, newkey_len, verbose);
688 if (pkey == NULL)
689 goto end;
690
691 EVP_PKEY_CTX_free(genctx);
692 genctx = NULL;
693 }
694 if (keyout == NULL && keyfile == NULL) {
695 keyout = NCONF_get_string(req_conf, section, KEYFILE);
696 if (keyout == NULL)
697 ERR_clear_error();
698 }
699
700 if (pkey != NULL && (keyfile == NULL || keyout != NULL)) {
701 if (verbose) {
702 BIO_printf(bio_err, "Writing private key to ");
703 if (keyout == NULL)
704 BIO_printf(bio_err, "stdout\n");
705 else
706 BIO_printf(bio_err, "'%s'\n", keyout);
707 }
708 out = bio_open_owner(keyout, outformat, newreq);
709 if (out == NULL)
710 goto end;
711
712 p = NCONF_get_string(req_conf, section, "encrypt_rsa_key");
713 if (p == NULL) {
714 ERR_clear_error();
715 p = NCONF_get_string(req_conf, section, "encrypt_key");
716 if (p == NULL)
717 ERR_clear_error();
718 }
719 if ((p != NULL) && (strcmp(p, "no") == 0))
720 cipher = NULL;
721 if (noenc)
722 cipher = NULL;
723
724 i = 0;
725 loop:
726 if (!PEM_write_bio_PrivateKey(out, pkey, cipher,
727 NULL, 0, NULL, passout)) {
728 if ((ERR_GET_REASON(ERR_peek_error()) ==
729 PEM_R_PROBLEMS_GETTING_PASSWORD) && (i < 3)) {
730 ERR_clear_error();
731 i++;
732 goto loop;
733 }
734 goto end;
735 }
736 BIO_free_all(out);
737 out = NULL;
738 BIO_printf(bio_err, "-----\n");
739 }
740
741 /*
742 * subj is expected to be in the format /type0=value0/type1=value1/type2=...
743 * where characters may be escaped by \
744 */
745 if (subj != NULL
746 && (fsubj = parse_name(subj, chtype, multirdn, "subject")) == NULL)
747 goto end;
748
749 if (!newreq) {
750 req = load_csr(infile /* if NULL, reads from stdin */,
751 informat, "X509 request");
752 if (req == NULL)
753 goto end;
754 }
755
756 if (CAkeyfile == NULL)
757 CAkeyfile = CAfile;
758 if (CAkeyfile != NULL) {
759 if (CAfile == NULL) {
760 BIO_printf(bio_err,
761 "Warning: Ignoring -CAkey option since no -CA option is given\n");
762 } else {
763 if ((CAkey = load_key(CAkeyfile, FORMAT_UNDEF,
764 0, passin, e,
765 CAkeyfile != CAfile
766 ? "issuer private key from -CAkey arg"
767 : "issuer private key from -CA arg")) == NULL)
768 goto end;
769 }
770 }
771 if (CAfile != NULL) {
772 if ((CAcert = load_cert_pass(CAfile, FORMAT_UNDEF, 1, passin,
773 "issuer cert from -CA arg")) == NULL)
774 goto end;
775 if (!X509_check_private_key(CAcert, CAkey)) {
776 BIO_printf(bio_err,
777 "Issuer CA certificate and key do not match\n");
778 goto end;
779 }
780 }
781 if (newreq || gen_x509) {
782 if (CAcert == NULL && pkey == NULL) {
783 BIO_printf(bio_err, "Must provide a signature key using -key or"
784 " provide -CA / -CAkey\n");
785 goto end;
786 }
787
788 if (req == NULL) {
789 req = X509_REQ_new_ex(app_get0_libctx(), app_get0_propq());
790 if (req == NULL) {
791 goto end;
792 }
793
794 if (!make_REQ(req, pkey, fsubj, multirdn, !gen_x509, chtype)){
795 BIO_printf(bio_err, "Error making certificate request\n");
796 goto end;
797 }
798 /* Note that -x509 can take over -key and -subj option values. */
799 }
800 if (gen_x509) {
801 EVP_PKEY *pub_key = X509_REQ_get0_pubkey(req);
802 EVP_PKEY *issuer_key = CAcert != NULL ? CAkey : pkey;
803 X509V3_CTX ext_ctx;
804 X509_NAME *issuer = CAcert != NULL ? X509_get_subject_name(CAcert) :
805 X509_REQ_get_subject_name(req);
806 X509_NAME *n_subj = fsubj != NULL ? fsubj :
807 X509_REQ_get_subject_name(req);
808
809 if ((new_x509 = X509_new_ex(app_get0_libctx(),
810 app_get0_propq())) == NULL)
811 goto end;
812
813 if (serial != NULL) {
814 if (!X509_set_serialNumber(new_x509, serial))
815 goto end;
816 } else {
817 if (!rand_serial(NULL, X509_get_serialNumber(new_x509)))
818 goto end;
819 }
820
821 if (!X509_set_issuer_name(new_x509, issuer))
822 goto end;
823 if (days == UNSET_DAYS) {
824 days = DEFAULT_DAYS;
825 }
826 if (!set_cert_times(new_x509, NULL, NULL, days))
827 goto end;
828 if (!X509_set_subject_name(new_x509, n_subj))
829 goto end;
830 if (!pub_key || !X509_set_pubkey(new_x509, pub_key))
831 goto end;
832 if (ext_copy == EXT_COPY_UNSET) {
833 if (infile != NULL)
834 BIO_printf(bio_err, "Warning: No -copy_extensions given; ignoring any extensions in the request\n");
835 } else if (!copy_extensions(new_x509, req, ext_copy)) {
836 BIO_printf(bio_err, "Error copying extensions from request\n");
837 goto end;
838 }
839
840 /* Set up V3 context struct */
841 X509V3_set_ctx(&ext_ctx, CAcert != NULL ? CAcert : new_x509,
842 new_x509, NULL, NULL, X509V3_CTX_REPLACE);
843 /* prepare fallback for AKID, but only if issuer cert == new_x509 */
844 if (CAcert == NULL) {
845 if (!X509V3_set_issuer_pkey(&ext_ctx, issuer_key))
846 goto end;
847 ERR_set_mark();
848 if (!X509_check_private_key(new_x509, issuer_key))
849 BIO_printf(bio_err,
850 "Warning: Signature key and public key of cert do not match\n");
851 ERR_pop_to_mark();
852 }
853 X509V3_set_nconf(&ext_ctx, req_conf);
854
855 /* Add extensions */
856 if (extensions != NULL
857 && !X509V3_EXT_add_nconf(req_conf, &ext_ctx, extensions,
858 new_x509)) {
859 BIO_printf(bio_err, "Error adding x509 extensions from section %s\n",
860 extensions);
861 goto end;
862 }
863 if (addext_conf != NULL
864 && !X509V3_EXT_add_nconf(addext_conf, &ext_ctx, "default",
865 new_x509)) {
866 BIO_printf(bio_err, "Error adding extensions defined via -addext\n");
867 goto end;
868 }
869
870 /* If a pre-cert was requested, we need to add a poison extension */
871 if (precert) {
872 if (X509_add1_ext_i2d(new_x509, NID_ct_precert_poison,
873 NULL, 1, 0) != 1) {
874 BIO_printf(bio_err, "Error adding poison extension\n");
875 goto end;
876 }
877 }
878
879 i = do_X509_sign(new_x509, issuer_key, digest, sigopts, &ext_ctx);
880 if (!i)
881 goto end;
882 } else {
883 X509V3_CTX ext_ctx;
884
885 /* Set up V3 context struct */
886 X509V3_set_ctx(&ext_ctx, NULL, NULL, req, NULL, 0);
887 X509V3_set_nconf(&ext_ctx, req_conf);
888
889 /* Add extensions */
890 if (req_exts != NULL
891 && !X509V3_EXT_REQ_add_nconf(req_conf, &ext_ctx,
892 req_exts, req)) {
893 BIO_printf(bio_err, "Error adding request extensions from section %s\n",
894 req_exts);
895 goto end;
896 }
897 if (addext_conf != NULL
898 && !X509V3_EXT_REQ_add_nconf(addext_conf, &ext_ctx, "default",
899 req)) {
900 BIO_printf(bio_err, "Error adding extensions defined via -addext\n");
901 goto end;
902 }
903 i = do_X509_REQ_sign(req, pkey, digest, sigopts);
904 if (!i)
905 goto end;
906 }
907 }
908
909 if (subj != NULL && !newreq && !gen_x509) {
910 if (verbose) {
911 BIO_printf(out, "Modifying subject of certificate request\n");
912 print_name(out, "Old subject=", X509_REQ_get_subject_name(req));
913 }
914
915 if (!X509_REQ_set_subject_name(req, fsubj)) {
916 BIO_printf(bio_err, "Error modifying subject of certificate request\n");
917 goto end;
918 }
919
920 if (verbose) {
921 print_name(out, "New subject=", X509_REQ_get_subject_name(req));
922 }
923 }
924
925 if (verify) {
926 EVP_PKEY *tpubkey = pkey;
927
928 if (tpubkey == NULL) {
929 tpubkey = X509_REQ_get0_pubkey(req);
930 if (tpubkey == NULL)
931 goto end;
932 }
933
934 i = do_X509_REQ_verify(req, tpubkey, vfyopts);
935
936 if (i < 0)
937 goto end;
938 if (i == 0)
939 BIO_printf(bio_err, "Certificate request self-signature verify failure\n");
940 else /* i > 0 */
941 BIO_printf(bio_err, "Certificate request self-signature verify OK\n");
942 }
943
944 if (noout && !text && !modulus && !subject && !pubkey) {
945 ret = 0;
946 goto end;
947 }
948
949 out = bio_open_default(outfile,
950 keyout != NULL && outfile != NULL &&
951 strcmp(keyout, outfile) == 0 ? 'a' : 'w',
952 outformat);
953 if (out == NULL)
954 goto end;
955
956 if (pubkey) {
957 EVP_PKEY *tpubkey = X509_REQ_get0_pubkey(req);
958
959 if (tpubkey == NULL) {
960 BIO_printf(bio_err, "Error getting public key\n");
961 goto end;
962 }
963 PEM_write_bio_PUBKEY(out, tpubkey);
964 }
965
966 if (text) {
967 if (gen_x509)
968 ret = X509_print_ex(out, new_x509, get_nameopt(), reqflag);
969 else
970 ret = X509_REQ_print_ex(out, req, get_nameopt(), reqflag);
971
972 if (ret == 0) {
973 if (gen_x509)
974 BIO_printf(bio_err, "Error printing certificate\n");
975 else
976 BIO_printf(bio_err, "Error printing certificate request\n");
977 goto end;
978 }
979 }
980
981 if (subject) {
982 print_name(out, "subject=", gen_x509
983 ? X509_get_subject_name(new_x509)
984 : X509_REQ_get_subject_name(req));
985 }
986
987 if (modulus) {
988 EVP_PKEY *tpubkey;
989
990 if (gen_x509)
991 tpubkey = X509_get0_pubkey(new_x509);
992 else
993 tpubkey = X509_REQ_get0_pubkey(req);
994 if (tpubkey == NULL) {
995 BIO_puts(bio_err, "Modulus is unavailable\n");
996 goto end;
997 }
998 BIO_puts(out, "Modulus=");
999 if (EVP_PKEY_is_a(tpubkey, "RSA") || EVP_PKEY_is_a(tpubkey, "RSA-PSS")) {
1000 BIGNUM *n = NULL;
1001
1002 if (!EVP_PKEY_get_bn_param(tpubkey, "n", &n))
1003 goto end;
1004 BN_print(out, n);
1005 BN_free(n);
1006 } else {
1007 BIO_puts(out, "Wrong Algorithm type");
1008 }
1009 BIO_puts(out, "\n");
1010 }
1011
1012 if (!noout && !gen_x509) {
1013 if (outformat == FORMAT_ASN1)
1014 i = i2d_X509_REQ_bio(out, req);
1015 else if (newhdr)
1016 i = PEM_write_bio_X509_REQ_NEW(out, req);
1017 else
1018 i = PEM_write_bio_X509_REQ(out, req);
1019 if (!i) {
1020 BIO_printf(bio_err, "Unable to write certificate request\n");
1021 goto end;
1022 }
1023 }
1024 if (!noout && gen_x509 && new_x509 != NULL) {
1025 if (outformat == FORMAT_ASN1)
1026 i = i2d_X509_bio(out, new_x509);
1027 else
1028 i = PEM_write_bio_X509(out, new_x509);
1029 if (!i) {
1030 BIO_printf(bio_err, "Unable to write X509 certificate\n");
1031 goto end;
1032 }
1033 }
1034 ret = 0;
1035 end:
1036 if (ret) {
1037 ERR_print_errors(bio_err);
1038 }
1039 NCONF_free(req_conf);
1040 NCONF_free(addext_conf);
1041 BIO_free(addext_bio);
1042 BIO_free_all(out);
1043 EVP_PKEY_free(pkey);
1044 EVP_PKEY_CTX_free(genctx);
1045 sk_OPENSSL_STRING_free(pkeyopts);
1046 sk_OPENSSL_STRING_free(sigopts);
1047 sk_OPENSSL_STRING_free(vfyopts);
1048 lh_OPENSSL_STRING_doall(addexts, exts_cleanup);
1049 lh_OPENSSL_STRING_free(addexts);
1050#ifndef OPENSSL_NO_ENGINE
1051 release_engine(gen_eng);
1052#endif
1053 OPENSSL_free(keyalgstr);
1054 X509_REQ_free(req);
1055 X509_NAME_free(fsubj);
1056 X509_free(new_x509);
1057 X509_free(CAcert);
1058 EVP_PKEY_free(CAkey);
1059 ASN1_INTEGER_free(serial);
1060 release_engine(e);
1061 if (passin != nofree_passin)
1062 OPENSSL_free(passin);
1063 if (passout != nofree_passout)
1064 OPENSSL_free(passout);
1065 return ret;
1066}
1067
1068static int make_REQ(X509_REQ *req, EVP_PKEY *pkey, X509_NAME *fsubj,
1069 int multirdn, int attribs, unsigned long chtype)
1070{
1071 int ret = 0, i;
1072 char no_prompt = 0;
1073 STACK_OF(CONF_VALUE) *dn_sk = NULL, *attr_sk = NULL;
1074 char *tmp, *dn_sect, *attr_sect;
1075
1076 tmp = NCONF_get_string(req_conf, section, PROMPT);
1077 if (tmp == NULL)
1078 ERR_clear_error();
1079 if ((tmp != NULL) && strcmp(tmp, "no") == 0)
1080 no_prompt = 1;
1081
1082 dn_sect = NCONF_get_string(req_conf, section, DISTINGUISHED_NAME);
1083 if (dn_sect == NULL) {
1084 ERR_clear_error();
1085 } else {
1086 dn_sk = NCONF_get_section(req_conf, dn_sect);
1087 if (dn_sk == NULL) {
1088 BIO_printf(bio_err, "Unable to get '%s' section\n", dn_sect);
1089 goto err;
1090 }
1091 }
1092
1093 attr_sect = NCONF_get_string(req_conf, section, ATTRIBUTES);
1094 if (attr_sect == NULL) {
1095 ERR_clear_error();
1096 } else {
1097 attr_sk = NCONF_get_section(req_conf, attr_sect);
1098 if (attr_sk == NULL) {
1099 BIO_printf(bio_err, "Unable to get '%s' section\n", attr_sect);
1100 goto err;
1101 }
1102 }
1103
1104 /* so far there is only version 1 */
1105 if (!X509_REQ_set_version(req, X509_REQ_VERSION_1))
1106 goto err;
1107
1108 if (fsubj != NULL)
1109 i = X509_REQ_set_subject_name(req, fsubj);
1110 else if (no_prompt)
1111 i = auto_info(req, dn_sk, attr_sk, attribs, chtype);
1112 else
1113 i = prompt_info(req, dn_sk, dn_sect, attr_sk, attr_sect, attribs,
1114 chtype);
1115 if (!i)
1116 goto err;
1117
1118 if (!X509_REQ_set_pubkey(req, pkey))
1119 goto err;
1120
1121 ret = 1;
1122 err:
1123 return ret;
1124}
1125
1126static int prompt_info(X509_REQ *req,
1127 STACK_OF(CONF_VALUE) *dn_sk, const char *dn_sect,
1128 STACK_OF(CONF_VALUE) *attr_sk, const char *attr_sect,
1129 int attribs, unsigned long chtype)
1130{
1131 int i;
1132 char *p, *q;
1133 char buf[100];
1134 int nid, mval;
1135 long n_min, n_max;
1136 char *type, *value;
1137 const char *def;
1138 CONF_VALUE *v;
1139 X509_NAME *subj = X509_REQ_get_subject_name(req);
1140
1141 if (!batch) {
1142 BIO_printf(bio_err,
1143 "You are about to be asked to enter information that will be incorporated\n");
1144 BIO_printf(bio_err, "into your certificate request.\n");
1145 BIO_printf(bio_err,
1146 "What you are about to enter is what is called a Distinguished Name or a DN.\n");
1147 BIO_printf(bio_err,
1148 "There are quite a few fields but you can leave some blank\n");
1149 BIO_printf(bio_err,
1150 "For some fields there will be a default value,\n");
1151 BIO_printf(bio_err,
1152 "If you enter '.', the field will be left blank.\n");
1153 BIO_printf(bio_err, "-----\n");
1154 }
1155
1156 if (sk_CONF_VALUE_num(dn_sk)) {
1157 i = -1;
1158 start:
1159 for (;;) {
1160 i++;
1161 if (sk_CONF_VALUE_num(dn_sk) <= i)
1162 break;
1163
1164 v = sk_CONF_VALUE_value(dn_sk, i);
1165 p = q = NULL;
1166 type = v->name;
1167 if (!check_end(type, "_min") || !check_end(type, "_max") ||
1168 !check_end(type, "_default") || !check_end(type, "_value"))
1169 continue;
1170 /*
1171 * Skip past any leading X. X: X, etc to allow for multiple
1172 * instances
1173 */
1174 for (p = v->name; *p; p++)
1175 if ((*p == ':') || (*p == ',') || (*p == '.')) {
1176 p++;
1177 if (*p)
1178 type = p;
1179 break;
1180 }
1181 if (*type == '+') {
1182 mval = -1;
1183 type++;
1184 } else {
1185 mval = 0;
1186 }
1187 /* If OBJ not recognised ignore it */
1188 if ((nid = OBJ_txt2nid(type)) == NID_undef)
1189 goto start;
1190 if (!join(buf, sizeof(buf), v->name, "_default", "Name"))
1191 return 0;
1192 if ((def = NCONF_get_string(req_conf, dn_sect, buf)) == NULL) {
1193 ERR_clear_error();
1194 def = "";
1195 }
1196
1197 if (!join(buf, sizeof(buf), v->name, "_value", "Name"))
1198 return 0;
1199 if ((value = NCONF_get_string(req_conf, dn_sect, buf)) == NULL) {
1200 ERR_clear_error();
1201 value = NULL;
1202 }
1203
1204 if (!join(buf, sizeof(buf), v->name, "_min", "Name"))
1205 return 0;
1206 if (!NCONF_get_number(req_conf, dn_sect, buf, &n_min)) {
1207 ERR_clear_error();
1208 n_min = -1;
1209 }
1210
1211 if (!join(buf, sizeof(buf), v->name, "_max", "Name"))
1212 return 0;
1213 if (!NCONF_get_number(req_conf, dn_sect, buf, &n_max)) {
1214 ERR_clear_error();
1215 n_max = -1;
1216 }
1217
1218 if (!add_DN_object(subj, v->value, def, value, nid,
1219 n_min, n_max, chtype, mval))
1220 return 0;
1221 }
1222 if (X509_NAME_entry_count(subj) == 0) {
1223 BIO_printf(bio_err, "Error: No objects specified in config file\n");
1224 return 0;
1225 }
1226
1227 if (attribs) {
1228 if ((attr_sk != NULL) && (sk_CONF_VALUE_num(attr_sk) > 0)
1229 && (!batch)) {
1230 BIO_printf(bio_err,
1231 "\nPlease enter the following 'extra' attributes\n");
1232 BIO_printf(bio_err,
1233 "to be sent with your certificate request\n");
1234 }
1235
1236 i = -1;
1237 start2:
1238 for (;;) {
1239 i++;
1240 if ((attr_sk == NULL) || (sk_CONF_VALUE_num(attr_sk) <= i))
1241 break;
1242
1243 v = sk_CONF_VALUE_value(attr_sk, i);
1244 type = v->name;
1245 if ((nid = OBJ_txt2nid(type)) == NID_undef)
1246 goto start2;
1247
1248 if (!join(buf, sizeof(buf), type, "_default", "Name"))
1249 return 0;
1250 if ((def = NCONF_get_string(req_conf, attr_sect, buf))
1251 == NULL) {
1252 ERR_clear_error();
1253 def = "";
1254 }
1255
1256 if (!join(buf, sizeof(buf), type, "_value", "Name"))
1257 return 0;
1258 if ((value = NCONF_get_string(req_conf, attr_sect, buf))
1259 == NULL) {
1260 ERR_clear_error();
1261 value = NULL;
1262 }
1263
1264 if (!join(buf, sizeof(buf), type, "_min", "Name"))
1265 return 0;
1266 if (!NCONF_get_number(req_conf, attr_sect, buf, &n_min)) {
1267 ERR_clear_error();
1268 n_min = -1;
1269 }
1270
1271 if (!join(buf, sizeof(buf), type, "_max", "Name"))
1272 return 0;
1273 if (!NCONF_get_number(req_conf, attr_sect, buf, &n_max)) {
1274 ERR_clear_error();
1275 n_max = -1;
1276 }
1277
1278 if (!add_attribute_object(req,
1279 v->value, def, value, nid, n_min,
1280 n_max, chtype))
1281 return 0;
1282 }
1283 }
1284 } else {
1285 BIO_printf(bio_err, "No template, please set one up.\n");
1286 return 0;
1287 }
1288
1289 return 1;
1290
1291}
1292
1293static int auto_info(X509_REQ *req, STACK_OF(CONF_VALUE) *dn_sk,
1294 STACK_OF(CONF_VALUE) *attr_sk, int attribs,
1295 unsigned long chtype)
1296{
1297 int i, spec_char, plus_char;
1298 char *p, *q;
1299 char *type;
1300 CONF_VALUE *v;
1301 X509_NAME *subj;
1302
1303 subj = X509_REQ_get_subject_name(req);
1304
1305 for (i = 0; i < sk_CONF_VALUE_num(dn_sk); i++) {
1306 int mval;
1307 v = sk_CONF_VALUE_value(dn_sk, i);
1308 p = q = NULL;
1309 type = v->name;
1310 /*
1311 * Skip past any leading X. X: X, etc to allow for multiple instances
1312 */
1313 for (p = v->name; *p; p++) {
1314#ifndef CHARSET_EBCDIC
1315 spec_char = (*p == ':' || *p == ',' || *p == '.');
1316#else
1317 spec_char = (*p == os_toascii[':'] || *p == os_toascii[',']
1318 || *p == os_toascii['.']);
1319#endif
1320 if (spec_char) {
1321 p++;
1322 if (*p)
1323 type = p;
1324 break;
1325 }
1326 }
1327#ifndef CHARSET_EBCDIC
1328 plus_char = (*type == '+');
1329#else
1330 plus_char = (*type == os_toascii['+']);
1331#endif
1332 if (plus_char) {
1333 type++;
1334 mval = -1;
1335 } else {
1336 mval = 0;
1337 }
1338 if (!X509_NAME_add_entry_by_txt(subj, type, chtype,
1339 (unsigned char *)v->value, -1, -1,
1340 mval))
1341 return 0;
1342
1343 }
1344
1345 if (!X509_NAME_entry_count(subj)) {
1346 BIO_printf(bio_err, "Error: No objects specified in config file\n");
1347 return 0;
1348 }
1349 if (attribs) {
1350 for (i = 0; i < sk_CONF_VALUE_num(attr_sk); i++) {
1351 v = sk_CONF_VALUE_value(attr_sk, i);
1352 if (!X509_REQ_add1_attr_by_txt(req, v->name, chtype,
1353 (unsigned char *)v->value, -1))
1354 return 0;
1355 }
1356 }
1357 return 1;
1358}
1359
1360static int add_DN_object(X509_NAME *n, char *text, const char *def,
1361 char *value, int nid, int n_min, int n_max,
1362 unsigned long chtype, int mval)
1363{
1364 int ret = 0;
1365 char buf[1024];
1366
1367 ret = build_data(text, def, value, n_min, n_max, buf, sizeof(buf),
1368 "DN value", "DN default");
1369 if ((ret == 0) || (ret == 1))
1370 return ret;
1371 ret = 1;
1372
1373 if (!X509_NAME_add_entry_by_NID(n, nid, chtype,
1374 (unsigned char *)buf, -1, -1, mval))
1375 ret = 0;
1376
1377 return ret;
1378}
1379
1380static int add_attribute_object(X509_REQ *req, char *text, const char *def,
1381 char *value, int nid, int n_min,
1382 int n_max, unsigned long chtype)
1383{
1384 int ret = 0;
1385 char buf[1024];
1386
1387 ret = build_data(text, def, value, n_min, n_max, buf, sizeof(buf),
1388 "Attribute value", "Attribute default");
1389 if ((ret == 0) || (ret == 1))
1390 return ret;
1391 ret = 1;
1392
1393 if (!X509_REQ_add1_attr_by_NID(req, nid, chtype,
1394 (unsigned char *)buf, -1)) {
1395 BIO_printf(bio_err, "Error adding attribute\n");
1396 ret = 0;
1397 }
1398
1399 return ret;
1400}
1401
1402static int build_data(char *text, const char *def, char *value,
1403 int n_min, int n_max, char *buf, const int buf_size,
1404 const char *desc1, const char *desc2)
1405{
1406 int i;
1407 start:
1408 if (!batch)
1409 BIO_printf(bio_err, "%s [%s]:", text, def);
1410 (void)BIO_flush(bio_err);
1411 if (value != NULL) {
1412 if (!join(buf, buf_size, value, "\n", desc1))
1413 return 0;
1414 BIO_printf(bio_err, "%s\n", value);
1415 } else {
1416 buf[0] = '\0';
1417 if (!batch) {
1418 if (!fgets(buf, buf_size, stdin))
1419 return 0;
1420 } else {
1421 buf[0] = '\n';
1422 buf[1] = '\0';
1423 }
1424 }
1425
1426 if (buf[0] == '\0')
1427 return 0;
1428 if (buf[0] == '\n') {
1429 if ((def == NULL) || (def[0] == '\0'))
1430 return 1;
1431 if (!join(buf, buf_size, def, "\n", desc2))
1432 return 0;
1433 } else if ((buf[0] == '.') && (buf[1] == '\n')) {
1434 return 1;
1435 }
1436
1437 i = strlen(buf);
1438 if (buf[i - 1] != '\n') {
1439 BIO_printf(bio_err, "Missing newline at end of input\n");
1440 return 0;
1441 }
1442 buf[--i] = '\0';
1443#ifdef CHARSET_EBCDIC
1444 ebcdic2ascii(buf, buf, i);
1445#endif
1446 if (!req_check_len(i, n_min, n_max)) {
1447 if (batch || value)
1448 return 0;
1449 goto start;
1450 }
1451 return 2;
1452}
1453
1454static int req_check_len(int len, int n_min, int n_max)
1455{
1456 if (n_min > 0 && len < n_min) {
1457 BIO_printf(bio_err,
1458 "String too short, must be at least %d bytes long\n", n_min);
1459 return 0;
1460 }
1461 if (n_max >= 0 && len > n_max) {
1462 BIO_printf(bio_err,
1463 "String too long, must be at most %d bytes long\n", n_max);
1464 return 0;
1465 }
1466 return 1;
1467}
1468
1469/* Check if the end of a string matches 'end' */
1470static int check_end(const char *str, const char *end)
1471{
1472 size_t elen, slen;
1473 const char *tmp;
1474
1475 elen = strlen(end);
1476 slen = strlen(str);
1477 if (elen > slen)
1478 return 1;
1479 tmp = str + slen - elen;
1480 return strcmp(tmp, end);
1481}
1482
1483/*
1484 * Merge the two strings together into the result buffer checking for
1485 * overflow and producing an error message if there is.
1486 */
1487static int join(char buf[], size_t buf_size, const char *name,
1488 const char *tail, const char *desc)
1489{
1490 const size_t name_len = strlen(name), tail_len = strlen(tail);
1491
1492 if (name_len + tail_len + 1 > buf_size) {
1493 BIO_printf(bio_err, "%s '%s' too long\n", desc, name);
1494 return 0;
1495 }
1496 memcpy(buf, name, name_len);
1497 memcpy(buf + name_len, tail, tail_len + 1);
1498 return 1;
1499}
1500
1501static EVP_PKEY_CTX *set_keygen_ctx(const char *gstr,
1502 char **pkeytype, long *pkeylen,
1503 ENGINE *keygen_engine)
1504{
1505 EVP_PKEY_CTX *gctx = NULL;
1506 EVP_PKEY *param = NULL;
1507 long keylen = -1;
1508 BIO *pbio = NULL;
1509 const char *keytype = NULL;
1510 size_t keytypelen = 0;
1511 int expect_paramfile = 0;
1512 const char *paramfile = NULL;
1513
1514 /* Treat the first part of gstr, and only that */
1515 if (gstr == NULL) {
1516 /*
1517 * Special case: when no string given, default to RSA and the
1518 * key length given by |*pkeylen|.
1519 */
1520 keytype = "RSA";
1521 keylen = *pkeylen;
1522 } else if (gstr[0] >= '0' && gstr[0] <= '9') {
1523 /* Special case: only keylength given from string, so default to RSA */
1524 keytype = "RSA";
1525 /* The second part treatment will do the rest */
1526 } else {
1527 const char *p = strchr(gstr, ':');
1528 int len;
1529
1530 if (p != NULL)
1531 len = p - gstr;
1532 else
1533 len = strlen(gstr);
1534
1535 if (strncmp(gstr, "param", len) == 0) {
1536 expect_paramfile = 1;
1537 if (p == NULL) {
1538 BIO_printf(bio_err,
1539 "Parameter file requested but no path given: %s\n",
1540 gstr);
1541 return NULL;
1542 }
1543 } else {
1544 keytype = gstr;
1545 keytypelen = len;
1546 }
1547
1548 if (p != NULL)
1549 gstr = gstr + len + 1;
1550 else
1551 gstr = NULL;
1552 }
1553
1554 /* Treat the second part of gstr, if there is one */
1555 if (gstr != NULL) {
1556 /* If the second part starts with a digit, we assume it's a size */
1557 if (!expect_paramfile && gstr[0] >= '0' && gstr[0] <= '9')
1558 keylen = atol(gstr);
1559 else
1560 paramfile = gstr;
1561 }
1562
1563 if (paramfile != NULL) {
1564 pbio = BIO_new_file(paramfile, "r");
1565 if (pbio == NULL) {
1566 BIO_printf(bio_err, "Cannot open parameter file %s\n", paramfile);
1567 return NULL;
1568 }
1569 param = PEM_read_bio_Parameters(pbio, NULL);
1570
1571 if (param == NULL) {
1572 X509 *x;
1573
1574 (void)BIO_reset(pbio);
1575 x = PEM_read_bio_X509(pbio, NULL, NULL, NULL);
1576 if (x != NULL) {
1577 param = X509_get_pubkey(x);
1578 X509_free(x);
1579 }
1580 }
1581
1582 BIO_free(pbio);
1583
1584 if (param == NULL) {
1585 BIO_printf(bio_err, "Error reading parameter file %s\n", paramfile);
1586 return NULL;
1587 }
1588 if (keytype == NULL) {
1589 keytype = EVP_PKEY_get0_type_name(param);
1590 if (keytype == NULL) {
1591 EVP_PKEY_free(param);
1592 BIO_puts(bio_err, "Unable to determine key type\n");
1593 return NULL;
1594 }
1595 }
1596 }
1597
1598 if (keytypelen > 0)
1599 *pkeytype = OPENSSL_strndup(keytype, keytypelen);
1600 else
1601 *pkeytype = OPENSSL_strdup(keytype);
1602
1603 if (*pkeytype == NULL) {
1604 BIO_printf(bio_err, "Out of memory\n");
1605 EVP_PKEY_free(param);
1606 return NULL;
1607 }
1608
1609 if (keylen >= 0)
1610 *pkeylen = keylen;
1611
1612 if (param != NULL) {
1613 if (!EVP_PKEY_is_a(param, *pkeytype)) {
1614 BIO_printf(bio_err, "Key type does not match parameters\n");
1615 EVP_PKEY_free(param);
1616 return NULL;
1617 }
1618
1619 if (keygen_engine != NULL)
1620 gctx = EVP_PKEY_CTX_new(param, keygen_engine);
1621 else
1622 gctx = EVP_PKEY_CTX_new_from_pkey(app_get0_libctx(),
1623 param, app_get0_propq());
1624 *pkeylen = EVP_PKEY_get_bits(param);
1625 EVP_PKEY_free(param);
1626 } else {
1627 if (keygen_engine != NULL) {
1628 int pkey_id = get_legacy_pkey_id(app_get0_libctx(), *pkeytype,
1629 keygen_engine);
1630
1631 if (pkey_id != NID_undef)
1632 gctx = EVP_PKEY_CTX_new_id(pkey_id, keygen_engine);
1633 } else {
1634 gctx = EVP_PKEY_CTX_new_from_name(app_get0_libctx(),
1635 *pkeytype, app_get0_propq());
1636 }
1637 }
1638
1639 if (gctx == NULL) {
1640 BIO_puts(bio_err, "Error allocating keygen context\n");
1641 return NULL;
1642 }
1643
1644 if (EVP_PKEY_keygen_init(gctx) <= 0) {
1645 BIO_puts(bio_err, "Error initializing keygen context\n");
1646 EVP_PKEY_CTX_free(gctx);
1647 return NULL;
1648 }
1649 if (keylen == -1 && (EVP_PKEY_CTX_is_a(gctx, "RSA")
1650 || EVP_PKEY_CTX_is_a(gctx, "RSA-PSS")))
1651 keylen = *pkeylen;
1652
1653 if (keylen != -1) {
1654 OSSL_PARAM params[] = { OSSL_PARAM_END, OSSL_PARAM_END };
1655 size_t bits = keylen;
1656
1657 params[0] =
1658 OSSL_PARAM_construct_size_t(OSSL_PKEY_PARAM_BITS, &bits);
1659 if (EVP_PKEY_CTX_set_params(gctx, params) <= 0) {
1660 BIO_puts(bio_err, "Error setting keysize\n");
1661 EVP_PKEY_CTX_free(gctx);
1662 return NULL;
1663 }
1664 }
1665
1666 return gctx;
1667}
1668
1669static int genpkey_cb(EVP_PKEY_CTX *ctx)
1670{
1671 char c = '*';
1672 BIO *b = EVP_PKEY_CTX_get_app_data(ctx);
1673 int p;
1674 p = EVP_PKEY_CTX_get_keygen_info(ctx, 0);
1675 if (p == 0)
1676 c = '.';
1677 if (p == 1)
1678 c = '+';
1679 if (p == 2)
1680 c = '*';
1681 if (p == 3)
1682 c = '\n';
1683 BIO_write(b, &c, 1);
1684 (void)BIO_flush(b);
1685 return 1;
1686}
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