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fix some code with obvious wrong coding style
[thirdparty/openssl.git] / apps / req.c
1 /*
2 * Copyright 1995-2021 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
50 static int make_REQ(X509_REQ *req, EVP_PKEY *pkey, X509_NAME *fsubj,
51 int mutlirdn, int attribs, unsigned long chtype);
52 static 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);
56 static int auto_info(X509_REQ *req, STACK_OF(CONF_VALUE) *sk,
57 STACK_OF(CONF_VALUE) *attr, int attribs,
58 unsigned long chtype);
59 static 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);
62 static 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);
65 static int genpkey_cb(EVP_PKEY_CTX *ctx);
66 static 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);
69 static int req_check_len(int len, int n_min, int n_max);
70 static int check_end(const char *str, const char *end);
71 static int join(char buf[], size_t buf_size, const char *name,
72 const char *tail, const char *desc);
73 static EVP_PKEY_CTX *set_keygen_ctx(const char *gstr,
74 char **pkeytype, long *pkeylen,
75 ENGINE *keygen_engine);
76
77 static const char *section = "req";
78 static CONF *req_conf = NULL;
79 static CONF *addext_conf = NULL;
80 static int batch = 0;
81
82 typedef 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_EXTENSIONS, OPT_REQEXTS, OPT_ADDEXT,
93 OPT_PRECERT, OPT_MD,
94 OPT_SECTION,
95 OPT_R_ENUM, OPT_PROV_ENUM
96 } OPTION_CHOICE;
97
98 const 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 {"extensions", OPT_EXTENSIONS, 's',
134 "Cert or request extension section (override value in config file)"},
135 {"reqexts", OPT_REQEXTS, 's', "An alias for -extensions"},
136 {"addext", OPT_ADDEXT, 's',
137 "Additional cert extension key=value pair (may be given more than once)"},
138 {"precert", OPT_PRECERT, '-', "Add a poison extension to generated cert (implies -new)"},
139
140 OPT_SECTION("Keys and Signing"),
141 {"key", OPT_KEY, 's', "Key for signing, and to include unless -in given"},
142 {"keyform", OPT_KEYFORM, 'f', "Key file format (ENGINE, other values ignored)"},
143 {"pubkey", OPT_PUBKEY, '-', "Output public key"},
144 {"keyout", OPT_KEYOUT, '>', "File to write private key to"},
145 {"passin", OPT_PASSIN, 's', "Private key and certificate password source"},
146 {"passout", OPT_PASSOUT, 's', "Output file pass phrase source"},
147 {"newkey", OPT_NEWKEY, 's',
148 "Generate new key with [<alg>:]<nbits> or <alg>[:<file>] or param:<file>"},
149 {"pkeyopt", OPT_PKEYOPT, 's', "Public key options as opt:value"},
150 {"sigopt", OPT_SIGOPT, 's', "Signature parameter in n:v form"},
151 {"vfyopt", OPT_VFYOPT, 's', "Verification parameter in n:v form"},
152 {"", OPT_MD, '-', "Any supported digest"},
153
154 OPT_SECTION("Output"),
155 {"out", OPT_OUT, '>', "Output file"},
156 {"outform", OPT_OUTFORM, 'F', "Output format - DER or PEM"},
157 {"batch", OPT_BATCH, '-',
158 "Do not ask anything during request generation"},
159 {"verbose", OPT_VERBOSE, '-', "Verbose output"},
160 {"noenc", OPT_NOENC, '-', "Don't encrypt private keys"},
161 {"nodes", OPT_NODES, '-', "Don't encrypt private keys; deprecated"},
162 {"noout", OPT_NOOUT, '-', "Do not output REQ"},
163 {"newhdr", OPT_NEWHDR, '-', "Output \"NEW\" in the header lines"},
164 {"modulus", OPT_MODULUS, '-', "RSA modulus"},
165
166 OPT_R_OPTIONS,
167 OPT_PROV_OPTIONS,
168 {NULL}
169 };
170
171 /*
172 * An LHASH of strings, where each string is an extension name.
173 */
174 static unsigned long ext_name_hash(const OPENSSL_STRING *a)
175 {
176 return OPENSSL_LH_strhash((const char *)a);
177 }
178
179 static int ext_name_cmp(const OPENSSL_STRING *a, const OPENSSL_STRING *b)
180 {
181 return strcmp((const char *)a, (const char *)b);
182 }
183
184 static void exts_cleanup(OPENSSL_STRING *x)
185 {
186 OPENSSL_free((char *)x);
187 }
188
189 /*
190 * Is the |kv| key already duplicated? This is remarkably tricky to get right.
191 * Return 0 if unique, -1 on runtime error; 1 if found or a syntax error.
192 */
193 static int duplicated(LHASH_OF(OPENSSL_STRING) *addexts, char *kv)
194 {
195 char *p;
196 size_t off;
197
198 /* Check syntax. */
199 /* Skip leading whitespace, make a copy. */
200 while (*kv && isspace(*kv))
201 if (*++kv == '\0')
202 return 1;
203 if ((p = strchr(kv, '=')) == NULL)
204 return 1;
205 off = p - kv;
206 if ((kv = OPENSSL_strdup(kv)) == NULL)
207 return -1;
208
209 /* Skip trailing space before the equal sign. */
210 for (p = kv + off; p > kv; --p)
211 if (!isspace(p[-1]))
212 break;
213 if (p == kv) {
214 OPENSSL_free(kv);
215 return 1;
216 }
217 *p = '\0';
218
219 /* Finally have a clean "key"; see if it's there [by attempt to add it]. */
220 p = (char *)lh_OPENSSL_STRING_insert(addexts, (OPENSSL_STRING *)kv);
221 if (p != NULL) {
222 OPENSSL_free(p);
223 return 1;
224 } else if (lh_OPENSSL_STRING_error(addexts)) {
225 OPENSSL_free(kv);
226 return -1;
227 }
228
229 return 0;
230 }
231
232 int req_main(int argc, char **argv)
233 {
234 ASN1_INTEGER *serial = NULL;
235 BIO *out = NULL;
236 ENGINE *e = NULL, *gen_eng = NULL;
237 EVP_PKEY *pkey = NULL, *CAkey = NULL;
238 EVP_PKEY_CTX *genctx = NULL;
239 STACK_OF(OPENSSL_STRING) *pkeyopts = NULL, *sigopts = NULL, *vfyopts = NULL;
240 LHASH_OF(OPENSSL_STRING) *addexts = NULL;
241 X509 *new_x509 = NULL, *CAcert = NULL;
242 X509_REQ *req = NULL;
243 EVP_CIPHER *cipher = NULL;
244 EVP_MD *md = NULL;
245 int ext_copy = EXT_COPY_UNSET;
246 BIO *addext_bio = NULL;
247 char *extsect = NULL;
248 const char *infile = NULL, *CAfile = NULL, *CAkeyfile = NULL;
249 char *outfile = NULL, *keyfile = NULL, *digest = NULL;
250 char *keyalgstr = NULL, *p, *prog, *passargin = NULL, *passargout = NULL;
251 char *passin = NULL, *passout = NULL;
252 char *nofree_passin = NULL, *nofree_passout = NULL;
253 char *subj = NULL;
254 X509_NAME *fsubj = NULL;
255 char *template = default_config_file, *keyout = NULL;
256 const char *keyalg = NULL;
257 OPTION_CHOICE o;
258 int days = UNSET_DAYS;
259 int ret = 1, gen_x509 = 0, i = 0, newreq = 0, verbose = 0;
260 int informat = FORMAT_UNDEF, outformat = FORMAT_PEM, keyform = FORMAT_UNDEF;
261 int modulus = 0, multirdn = 1, verify = 0, noout = 0, text = 0;
262 int noenc = 0, newhdr = 0, subject = 0, pubkey = 0, precert = 0;
263 long newkey_len = -1;
264 unsigned long chtype = MBSTRING_ASC, reqflag = 0;
265
266 #ifndef OPENSSL_NO_DES
267 cipher = (EVP_CIPHER *)EVP_des_ede3_cbc();
268 #endif
269
270 prog = opt_init(argc, argv, req_options);
271 while ((o = opt_next()) != OPT_EOF) {
272 switch (o) {
273 case OPT_EOF:
274 case OPT_ERR:
275 opthelp:
276 BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
277 goto end;
278 case OPT_HELP:
279 opt_help(req_options);
280 ret = 0;
281 goto end;
282 case OPT_INFORM:
283 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &informat))
284 goto opthelp;
285 break;
286 case OPT_OUTFORM:
287 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &outformat))
288 goto opthelp;
289 break;
290 case OPT_ENGINE:
291 e = setup_engine(opt_arg(), 0);
292 break;
293 case OPT_KEYGEN_ENGINE:
294 #ifndef OPENSSL_NO_ENGINE
295 gen_eng = setup_engine(opt_arg(), 0);
296 if (gen_eng == NULL) {
297 BIO_printf(bio_err, "Can't find keygen engine %s\n", *argv);
298 goto opthelp;
299 }
300 #endif
301 break;
302 case OPT_KEY:
303 keyfile = opt_arg();
304 break;
305 case OPT_PUBKEY:
306 pubkey = 1;
307 break;
308 case OPT_NEW:
309 newreq = 1;
310 break;
311 case OPT_CONFIG:
312 template = opt_arg();
313 break;
314 case OPT_SECTION:
315 section = opt_arg();
316 break;
317 case OPT_KEYFORM:
318 if (!opt_format(opt_arg(), OPT_FMT_ANY, &keyform))
319 goto opthelp;
320 break;
321 case OPT_IN:
322 infile = opt_arg();
323 break;
324 case OPT_OUT:
325 outfile = opt_arg();
326 break;
327 case OPT_KEYOUT:
328 keyout = opt_arg();
329 break;
330 case OPT_PASSIN:
331 passargin = opt_arg();
332 break;
333 case OPT_PASSOUT:
334 passargout = opt_arg();
335 break;
336 case OPT_R_CASES:
337 if (!opt_rand(o))
338 goto end;
339 break;
340 case OPT_PROV_CASES:
341 if (!opt_provider(o))
342 goto end;
343 break;
344 case OPT_NEWKEY:
345 keyalg = opt_arg();
346 newreq = 1;
347 break;
348 case OPT_PKEYOPT:
349 if (pkeyopts == NULL)
350 pkeyopts = sk_OPENSSL_STRING_new_null();
351 if (pkeyopts == NULL
352 || !sk_OPENSSL_STRING_push(pkeyopts, opt_arg()))
353 goto opthelp;
354 break;
355 case OPT_SIGOPT:
356 if (!sigopts)
357 sigopts = sk_OPENSSL_STRING_new_null();
358 if (!sigopts || !sk_OPENSSL_STRING_push(sigopts, opt_arg()))
359 goto opthelp;
360 break;
361 case OPT_VFYOPT:
362 if (!vfyopts)
363 vfyopts = sk_OPENSSL_STRING_new_null();
364 if (!vfyopts || !sk_OPENSSL_STRING_push(vfyopts, opt_arg()))
365 goto opthelp;
366 break;
367 case OPT_BATCH:
368 batch = 1;
369 break;
370 case OPT_NEWHDR:
371 newhdr = 1;
372 break;
373 case OPT_MODULUS:
374 modulus = 1;
375 break;
376 case OPT_VERIFY:
377 verify = 1;
378 break;
379 case OPT_NODES:
380 case OPT_NOENC:
381 noenc = 1;
382 break;
383 case OPT_NOOUT:
384 noout = 1;
385 break;
386 case OPT_VERBOSE:
387 verbose = 1;
388 break;
389 case OPT_UTF8:
390 chtype = MBSTRING_UTF8;
391 break;
392 case OPT_NAMEOPT:
393 if (!set_nameopt(opt_arg()))
394 goto opthelp;
395 break;
396 case OPT_REQOPT:
397 if (!set_cert_ex(&reqflag, opt_arg()))
398 goto opthelp;
399 break;
400 case OPT_TEXT:
401 text = 1;
402 break;
403 case OPT_X509:
404 gen_x509 = 1;
405 break;
406 case OPT_CA:
407 CAfile = opt_arg();
408 gen_x509 = 1;
409 break;
410 case OPT_CAKEY:
411 CAkeyfile = opt_arg();
412 break;
413 case OPT_DAYS:
414 days = atoi(opt_arg());
415 if (days < -1) {
416 BIO_printf(bio_err, "%s: -days parameter arg must be >= -1\n",
417 prog);
418 goto end;
419 }
420 break;
421 case OPT_SET_SERIAL:
422 if (serial != NULL) {
423 BIO_printf(bio_err, "Serial number supplied twice\n");
424 goto opthelp;
425 }
426 serial = s2i_ASN1_INTEGER(NULL, opt_arg());
427 if (serial == NULL)
428 goto opthelp;
429 break;
430 case OPT_SUBJECT:
431 subject = 1;
432 break;
433 case OPT_SUBJ:
434 subj = opt_arg();
435 break;
436 case OPT_MULTIVALUE_RDN:
437 /* obsolete */
438 break;
439 case OPT_COPY_EXTENSIONS:
440 if (!set_ext_copy(&ext_copy, opt_arg())) {
441 BIO_printf(bio_err, "Invalid extension copy option: \"%s\"\n",
442 opt_arg());
443 goto end;
444 }
445 break;
446 case OPT_EXTENSIONS:
447 case OPT_REQEXTS:
448 extsect = opt_arg();
449 break;
450 case OPT_ADDEXT:
451 p = opt_arg();
452 if (addexts == NULL) {
453 addexts = lh_OPENSSL_STRING_new(ext_name_hash, ext_name_cmp);
454 addext_bio = BIO_new(BIO_s_mem());
455 if (addexts == NULL || addext_bio == NULL)
456 goto end;
457 }
458 i = duplicated(addexts, p);
459 if (i == 1) {
460 BIO_printf(bio_err, "Duplicate extension name: %s\n", p);
461 goto opthelp;
462 }
463 if (i < 0 || BIO_printf(addext_bio, "%s\n", p) < 0)
464 goto end;
465 break;
466 case OPT_PRECERT:
467 newreq = precert = 1;
468 break;
469 case OPT_MD:
470 digest = opt_unknown();
471 break;
472 }
473 }
474
475 /* No extra arguments. */
476 argc = opt_num_rest();
477 if (argc != 0)
478 goto opthelp;
479
480 if (!app_RAND_load())
481 goto end;
482
483 if (!gen_x509) {
484 if (days != UNSET_DAYS)
485 BIO_printf(bio_err, "Ignoring -days without -x509; not generating a certificate\n");
486 if (ext_copy == EXT_COPY_NONE)
487 BIO_printf(bio_err, "Ignoring -copy_extensions 'none' when -x509 is not given\n");
488 }
489 if (infile == NULL) {
490 if (gen_x509)
491 newreq = 1;
492 else if (!newreq)
493 BIO_printf(bio_err,
494 "Warning: Will read cert request from stdin since no -in option is given\n");
495 }
496
497 if (!app_passwd(passargin, passargout, &passin, &passout)) {
498 BIO_printf(bio_err, "Error getting passwords\n");
499 goto end;
500 }
501
502 if ((req_conf = app_load_config_verbose(template, verbose)) == NULL)
503 goto end;
504 if (addext_bio != NULL) {
505 if (verbose)
506 BIO_printf(bio_err,
507 "Using additional configuration from -addext options\n");
508 if ((addext_conf = app_load_config_bio(addext_bio, NULL)) == NULL)
509 goto end;
510 }
511 if (template != default_config_file && !app_load_modules(req_conf))
512 goto end;
513
514 if (req_conf != NULL) {
515 p = NCONF_get_string(req_conf, NULL, "oid_file");
516 if (p == NULL)
517 ERR_clear_error();
518 if (p != NULL) {
519 BIO *oid_bio = BIO_new_file(p, "r");
520
521 if (oid_bio == NULL) {
522 if (verbose)
523 BIO_printf(bio_err,
524 "Problems opening '%s' for extra OIDs\n", p);
525 } else {
526 OBJ_create_objects(oid_bio);
527 BIO_free(oid_bio);
528 }
529 }
530 }
531 if (!add_oid_section(req_conf))
532 goto end;
533
534 /* Check that any specified digest is fetchable */
535 if (digest != NULL) {
536 if (!opt_md(digest, &md)) {
537 ERR_clear_error();
538 goto opthelp;
539 }
540 EVP_MD_free(md);
541 } else {
542 /* No digest specified, default to configuration */
543 p = NCONF_get_string(req_conf, section, "default_md");
544 if (p == NULL)
545 ERR_clear_error();
546 else
547 digest = p;
548 }
549
550 if (extsect == NULL) {
551 extsect = NCONF_get_string(req_conf, section,
552 gen_x509 ? V3_EXTENSIONS : REQ_EXTENSIONS);
553 if (extsect == NULL)
554 ERR_clear_error();
555 }
556 if (extsect != NULL) {
557 /* Check syntax of extension section in config file */
558 X509V3_CTX ctx;
559
560 X509V3_set_ctx_test(&ctx);
561 X509V3_set_nconf(&ctx, req_conf);
562 if (!X509V3_EXT_add_nconf(req_conf, &ctx, extsect, NULL)) {
563 BIO_printf(bio_err,
564 "Error checking %s extension section %s\n",
565 gen_x509 ? "x509" : "request", extsect);
566 goto end;
567 }
568 }
569 if (addext_conf != NULL) {
570 /* Check syntax of command line extensions */
571 X509V3_CTX ctx;
572
573 X509V3_set_ctx_test(&ctx);
574 X509V3_set_nconf(&ctx, addext_conf);
575 if (!X509V3_EXT_add_nconf(addext_conf, &ctx, "default", NULL)) {
576 BIO_printf(bio_err, "Error checking extensions defined using -addext\n");
577 goto end;
578 }
579 }
580
581 if (passin == NULL) {
582 passin = nofree_passin =
583 NCONF_get_string(req_conf, section, "input_password");
584 if (passin == NULL)
585 ERR_clear_error();
586 }
587
588 if (passout == NULL) {
589 passout = nofree_passout =
590 NCONF_get_string(req_conf, section, "output_password");
591 if (passout == NULL)
592 ERR_clear_error();
593 }
594
595 p = NCONF_get_string(req_conf, section, STRING_MASK);
596 if (p == NULL)
597 ERR_clear_error();
598
599 if (p != NULL && !ASN1_STRING_set_default_mask_asc(p)) {
600 BIO_printf(bio_err, "Invalid global string mask setting %s\n", p);
601 goto end;
602 }
603
604 if (chtype != MBSTRING_UTF8) {
605 p = NCONF_get_string(req_conf, section, UTF8_IN);
606 if (p == NULL)
607 ERR_clear_error();
608 else if (strcmp(p, "yes") == 0)
609 chtype = MBSTRING_UTF8;
610 }
611
612 if (keyfile != NULL) {
613 pkey = load_key(keyfile, keyform, 0, passin, e, "private key");
614 if (pkey == NULL)
615 goto end;
616 app_RAND_load_conf(req_conf, section);
617 }
618 if (keyalg != NULL && pkey != NULL) {
619 BIO_printf(bio_err,
620 "Warning: Not generating key via given -newkey option since -key is given\n");
621 /* Better throw an error in this case */
622 }
623 if (newreq && pkey == NULL) {
624 app_RAND_load_conf(req_conf, section);
625
626 if (!NCONF_get_number(req_conf, section, BITS, &newkey_len))
627 newkey_len = DEFAULT_KEY_LENGTH;
628
629 genctx = set_keygen_ctx(keyalg, &keyalgstr, &newkey_len, gen_eng);
630 if (genctx == NULL)
631 goto end;
632
633 if (newkey_len < MIN_KEY_LENGTH
634 && (EVP_PKEY_CTX_is_a(genctx, "RSA")
635 || EVP_PKEY_CTX_is_a(genctx, "RSA-PSS")
636 || EVP_PKEY_CTX_is_a(genctx, "DSA"))) {
637 BIO_printf(bio_err, "Private key length too short, needs to be at least %d bits, not %ld.\n",
638 MIN_KEY_LENGTH, newkey_len);
639 goto end;
640 }
641
642 if (newkey_len > OPENSSL_RSA_MAX_MODULUS_BITS
643 && (EVP_PKEY_CTX_is_a(genctx, "RSA")
644 || EVP_PKEY_CTX_is_a(genctx, "RSA-PSS")))
645 BIO_printf(bio_err,
646 "Warning: It is not recommended to use more than %d bit for RSA keys.\n"
647 " Your key size is %ld! Larger key size may behave not as expected.\n",
648 OPENSSL_RSA_MAX_MODULUS_BITS, newkey_len);
649
650 #ifndef OPENSSL_NO_DSA
651 if (EVP_PKEY_CTX_is_a(genctx, "DSA")
652 && newkey_len > OPENSSL_DSA_MAX_MODULUS_BITS)
653 BIO_printf(bio_err,
654 "Warning: It is not recommended to use more than %d bit for DSA keys.\n"
655 " Your key size is %ld! Larger key size may behave not as expected.\n",
656 OPENSSL_DSA_MAX_MODULUS_BITS, newkey_len);
657 #endif
658
659 if (pkeyopts != NULL) {
660 char *genopt;
661 for (i = 0; i < sk_OPENSSL_STRING_num(pkeyopts); i++) {
662 genopt = sk_OPENSSL_STRING_value(pkeyopts, i);
663 if (pkey_ctrl_string(genctx, genopt) <= 0) {
664 BIO_printf(bio_err, "Key parameter error \"%s\"\n", genopt);
665 goto end;
666 }
667 }
668 }
669
670 EVP_PKEY_CTX_set_cb(genctx, genpkey_cb);
671 EVP_PKEY_CTX_set_app_data(genctx, bio_err);
672
673 pkey = app_keygen(genctx, keyalgstr, newkey_len, verbose);
674
675 EVP_PKEY_CTX_free(genctx);
676 genctx = NULL;
677 }
678 if (keyout == NULL && keyfile == NULL) {
679 keyout = NCONF_get_string(req_conf, section, KEYFILE);
680 if (keyout == NULL)
681 ERR_clear_error();
682 }
683
684 if (pkey != NULL && (keyfile == NULL || keyout != NULL)) {
685 if (verbose) {
686 BIO_printf(bio_err, "Writing private key to ");
687 if (keyout == NULL)
688 BIO_printf(bio_err, "stdout\n");
689 else
690 BIO_printf(bio_err, "'%s'\n", keyout);
691 }
692 out = bio_open_owner(keyout, outformat, newreq);
693 if (out == NULL)
694 goto end;
695
696 p = NCONF_get_string(req_conf, section, "encrypt_rsa_key");
697 if (p == NULL) {
698 ERR_clear_error();
699 p = NCONF_get_string(req_conf, section, "encrypt_key");
700 if (p == NULL)
701 ERR_clear_error();
702 }
703 if ((p != NULL) && (strcmp(p, "no") == 0))
704 cipher = NULL;
705 if (noenc)
706 cipher = NULL;
707
708 i = 0;
709 loop:
710 if (!PEM_write_bio_PrivateKey(out, pkey, cipher,
711 NULL, 0, NULL, passout)) {
712 if ((ERR_GET_REASON(ERR_peek_error()) ==
713 PEM_R_PROBLEMS_GETTING_PASSWORD) && (i < 3)) {
714 ERR_clear_error();
715 i++;
716 goto loop;
717 }
718 goto end;
719 }
720 BIO_free(out);
721 out = NULL;
722 BIO_printf(bio_err, "-----\n");
723 }
724
725 /*
726 * subj is expected to be in the format /type0=value0/type1=value1/type2=...
727 * where characters may be escaped by \
728 */
729 if (subj != NULL
730 && (fsubj = parse_name(subj, chtype, multirdn, "subject")) == NULL)
731 goto end;
732
733 if (!newreq) {
734 if (keyfile != NULL)
735 BIO_printf(bio_err,
736 "Warning: Not placing -key in cert or request since request is used\n");
737 req = load_csr(infile /* if NULL, reads from stdin */,
738 informat, "X509 request");
739 if (req == NULL)
740 goto end;
741 } else if (infile != NULL) {
742 BIO_printf(bio_err,
743 "Warning: Ignoring -in option since -new or -newkey or -precert is given\n");
744 /* Better throw an error in this case, as done in the x509 app */
745 }
746
747 if (CAkeyfile == NULL)
748 CAkeyfile = CAfile;
749 if (CAkeyfile != NULL) {
750 if (CAfile == NULL) {
751 BIO_printf(bio_err,
752 "Warning: Ignoring -CAkey option since no -CA option is given\n");
753 } else {
754 if ((CAkey = load_key(CAkeyfile, FORMAT_UNDEF,
755 0, passin, e,
756 CAkeyfile != CAfile
757 ? "issuer private key from -CAkey arg"
758 : "issuer private key from -CA arg")) == NULL)
759 goto end;
760 }
761 }
762 if (CAfile != NULL) {
763 if ((CAcert = load_cert_pass(CAfile, FORMAT_UNDEF, 1, passin,
764 "issuer cert from -CA arg")) == NULL)
765 goto end;
766 if (!X509_check_private_key(CAcert, CAkey)) {
767 BIO_printf(bio_err,
768 "Issuer CA certificate and key do not match\n");
769 goto end;
770 }
771 }
772 if (newreq || gen_x509) {
773 if (pkey == NULL /* can happen only if !newreq */) {
774 BIO_printf(bio_err, "Must provide a signature key using -key\n");
775 goto end;
776 }
777
778 if (req == NULL) {
779 req = X509_REQ_new_ex(app_get0_libctx(), app_get0_propq());
780 if (req == NULL) {
781 goto end;
782 }
783
784 if (!make_REQ(req, pkey, fsubj, multirdn, !gen_x509, chtype)) {
785 BIO_printf(bio_err, "Error making certificate request\n");
786 goto end;
787 }
788 /* Note that -x509 can take over -key and -subj option values. */
789 }
790 if (gen_x509) {
791 EVP_PKEY *pub_key = X509_REQ_get0_pubkey(req);
792 EVP_PKEY *issuer_key = CAcert != NULL ? CAkey : pkey;
793 X509V3_CTX ext_ctx;
794 X509_NAME *issuer = CAcert != NULL ? X509_get_subject_name(CAcert) :
795 X509_REQ_get_subject_name(req);
796 X509_NAME *n_subj = fsubj != NULL ? fsubj :
797 X509_REQ_get_subject_name(req);
798
799 if (CAcert != NULL && keyfile != NULL)
800 BIO_printf(bio_err,
801 "Warning: Not using -key or -newkey for signing since -CA option is given\n");
802
803 if ((new_x509 = X509_new_ex(app_get0_libctx(),
804 app_get0_propq())) == NULL)
805 goto end;
806
807 if (serial != NULL) {
808 if (!X509_set_serialNumber(new_x509, serial))
809 goto end;
810 } else {
811 if (!rand_serial(NULL, X509_get_serialNumber(new_x509)))
812 goto end;
813 }
814
815 if (!X509_set_issuer_name(new_x509, issuer))
816 goto end;
817 if (days == UNSET_DAYS) {
818 days = DEFAULT_DAYS;
819 }
820 if (!set_cert_times(new_x509, NULL, NULL, days))
821 goto end;
822 if (!X509_set_subject_name(new_x509, n_subj))
823 goto end;
824 if (!pub_key || !X509_set_pubkey(new_x509, pub_key))
825 goto end;
826 if (ext_copy == EXT_COPY_UNSET) {
827 if (infile != NULL)
828 BIO_printf(bio_err, "Warning: No -copy_extensions given; ignoring any extensions in the request\n");
829 } else if (!copy_extensions(new_x509, req, ext_copy)) {
830 BIO_printf(bio_err, "Error copying extensions from request\n");
831 goto end;
832 }
833
834 /* Set up V3 context struct */
835 X509V3_set_ctx(&ext_ctx, CAcert != NULL ? CAcert : new_x509,
836 new_x509, NULL, NULL, X509V3_CTX_REPLACE);
837 /* prepare fallback for AKID, but only if issuer cert == new_x509 */
838 if (CAcert == NULL) {
839 if (!X509V3_set_issuer_pkey(&ext_ctx, issuer_key))
840 goto end;
841 ERR_set_mark();
842 if (!X509_check_private_key(new_x509, issuer_key))
843 BIO_printf(bio_err,
844 "Warning: Signature key and public key of cert do not match\n");
845 ERR_pop_to_mark();
846 }
847 X509V3_set_nconf(&ext_ctx, req_conf);
848
849 /* Add extensions */
850 if (extsect != NULL
851 && !X509V3_EXT_add_nconf(req_conf, &ext_ctx, extsect, new_x509)) {
852 BIO_printf(bio_err, "Error adding x509 extensions from section %s\n",
853 extsect);
854 goto end;
855 }
856 if (addext_conf != NULL
857 && !X509V3_EXT_add_nconf(addext_conf, &ext_ctx, "default",
858 new_x509)) {
859 BIO_printf(bio_err, "Error adding x509 extensions defined via -addext\n");
860 goto end;
861 }
862
863 /* If a pre-cert was requested, we need to add a poison extension */
864 if (precert) {
865 if (X509_add1_ext_i2d(new_x509, NID_ct_precert_poison,
866 NULL, 1, 0) != 1) {
867 BIO_printf(bio_err, "Error adding poison extension\n");
868 goto end;
869 }
870 }
871
872 i = do_X509_sign(new_x509, issuer_key, digest, sigopts, &ext_ctx);
873 if (!i)
874 goto end;
875 } else {
876 X509V3_CTX ext_ctx;
877
878 if (precert) {
879 BIO_printf(bio_err,
880 "Warning: Ignoring -precert flag since no cert is produced\n");
881 }
882 /* Set up V3 context struct */
883 X509V3_set_ctx(&ext_ctx, NULL, NULL, req, NULL, X509V3_CTX_REPLACE);
884 X509V3_set_nconf(&ext_ctx, req_conf);
885
886 /* Add extensions */
887 if (extsect != NULL
888 && !X509V3_EXT_REQ_add_nconf(req_conf, &ext_ctx, extsect, req)) {
889 BIO_printf(bio_err, "Error adding request extensions from section %s\n",
890 extsect);
891 goto end;
892 }
893 if (addext_conf != NULL
894 && !X509V3_EXT_REQ_add_nconf(addext_conf, &ext_ctx, "default",
895 req)) {
896 BIO_printf(bio_err, "Error adding request extensions defined via -addext\n");
897 goto end;
898 }
899 i = do_X509_REQ_sign(req, pkey, digest, sigopts);
900 if (!i)
901 goto end;
902 }
903 }
904
905 if (subj != NULL && !newreq && !gen_x509) {
906 if (verbose) {
907 BIO_printf(out, "Modifying subject of certificate request\n");
908 print_name(out, "Old subject=", X509_REQ_get_subject_name(req));
909 }
910
911 if (!X509_REQ_set_subject_name(req, fsubj)) {
912 BIO_printf(bio_err, "Error modifying subject of certificate request\n");
913 goto end;
914 }
915
916 if (verbose) {
917 print_name(out, "New subject=", X509_REQ_get_subject_name(req));
918 }
919 }
920
921 if (verify) {
922 EVP_PKEY *tpubkey = pkey;
923
924 if (tpubkey == NULL) {
925 tpubkey = X509_REQ_get0_pubkey(req);
926 if (tpubkey == NULL)
927 goto end;
928 }
929
930 i = do_X509_REQ_verify(req, tpubkey, vfyopts);
931
932 if (i < 0)
933 goto end;
934 if (i == 0)
935 BIO_printf(bio_err, "Certificate request self-signature verify failure\n");
936 else /* i > 0 */
937 BIO_printf(bio_err, "Certificate request self-signature verify OK\n");
938 }
939
940 if (noout && !text && !modulus && !subject && !pubkey) {
941 ret = 0;
942 goto end;
943 }
944
945 out = bio_open_default(outfile,
946 keyout != NULL && outfile != NULL &&
947 strcmp(keyout, outfile) == 0 ? 'a' : 'w',
948 outformat);
949 if (out == NULL)
950 goto end;
951
952 if (pubkey) {
953 EVP_PKEY *tpubkey = X509_REQ_get0_pubkey(req);
954
955 if (tpubkey == NULL) {
956 BIO_printf(bio_err, "Error getting public key\n");
957 goto end;
958 }
959 PEM_write_bio_PUBKEY(out, tpubkey);
960 }
961
962 if (text) {
963 if (gen_x509)
964 ret = X509_print_ex(out, new_x509, get_nameopt(), reqflag);
965 else
966 ret = X509_REQ_print_ex(out, req, get_nameopt(), reqflag);
967
968 if (ret == 0) {
969 if (gen_x509)
970 BIO_printf(bio_err, "Error printing certificate\n");
971 else
972 BIO_printf(bio_err, "Error printing certificate request\n");
973 goto end;
974 }
975 }
976
977 if (subject) {
978 print_name(out, "subject=", gen_x509
979 ? X509_get_subject_name(new_x509)
980 : X509_REQ_get_subject_name(req));
981 }
982
983 if (modulus) {
984 EVP_PKEY *tpubkey;
985
986 if (gen_x509)
987 tpubkey = X509_get0_pubkey(new_x509);
988 else
989 tpubkey = X509_REQ_get0_pubkey(req);
990 if (tpubkey == NULL) {
991 fprintf(stdout, "Modulus is unavailable\n");
992 goto end;
993 }
994 fprintf(stdout, "Modulus=");
995 if (EVP_PKEY_is_a(tpubkey, "RSA")) {
996 BIGNUM *n = NULL;
997
998 if (!EVP_PKEY_get_bn_param(tpubkey, "n", &n))
999 goto end;
1000 BN_print(out, n);
1001 BN_free(n);
1002 } else {
1003 fprintf(stdout, "Wrong Algorithm type");
1004 }
1005 fprintf(stdout, "\n");
1006 }
1007
1008 if (!noout && !gen_x509) {
1009 if (outformat == FORMAT_ASN1)
1010 i = i2d_X509_REQ_bio(out, req);
1011 else if (newhdr)
1012 i = PEM_write_bio_X509_REQ_NEW(out, req);
1013 else
1014 i = PEM_write_bio_X509_REQ(out, req);
1015 if (!i) {
1016 BIO_printf(bio_err, "Unable to write certificate request\n");
1017 goto end;
1018 }
1019 }
1020 if (!noout && gen_x509 && new_x509 != NULL) {
1021 if (outformat == FORMAT_ASN1)
1022 i = i2d_X509_bio(out, new_x509);
1023 else
1024 i = PEM_write_bio_X509(out, new_x509);
1025 if (!i) {
1026 BIO_printf(bio_err, "Unable to write X509 certificate\n");
1027 goto end;
1028 }
1029 }
1030 ret = 0;
1031 end:
1032 if (ret) {
1033 ERR_print_errors(bio_err);
1034 }
1035 NCONF_free(req_conf);
1036 NCONF_free(addext_conf);
1037 BIO_free(addext_bio);
1038 BIO_free_all(out);
1039 EVP_PKEY_free(pkey);
1040 EVP_PKEY_CTX_free(genctx);
1041 sk_OPENSSL_STRING_free(pkeyopts);
1042 sk_OPENSSL_STRING_free(sigopts);
1043 sk_OPENSSL_STRING_free(vfyopts);
1044 lh_OPENSSL_STRING_doall(addexts, exts_cleanup);
1045 lh_OPENSSL_STRING_free(addexts);
1046 #ifndef OPENSSL_NO_ENGINE
1047 release_engine(gen_eng);
1048 #endif
1049 OPENSSL_free(keyalgstr);
1050 X509_REQ_free(req);
1051 X509_NAME_free(fsubj);
1052 X509_free(new_x509);
1053 X509_free(CAcert);
1054 EVP_PKEY_free(CAkey);
1055 ASN1_INTEGER_free(serial);
1056 release_engine(e);
1057 if (passin != nofree_passin)
1058 OPENSSL_free(passin);
1059 if (passout != nofree_passout)
1060 OPENSSL_free(passout);
1061 return ret;
1062 }
1063
1064 static int make_REQ(X509_REQ *req, EVP_PKEY *pkey, X509_NAME *fsubj,
1065 int multirdn, int attribs, unsigned long chtype)
1066 {
1067 int ret = 0, i;
1068 char no_prompt = 0;
1069 STACK_OF(CONF_VALUE) *dn_sk = NULL, *attr_sk = NULL;
1070 char *tmp, *dn_sect, *attr_sect;
1071
1072 tmp = NCONF_get_string(req_conf, section, PROMPT);
1073 if (tmp == NULL)
1074 ERR_clear_error();
1075 if ((tmp != NULL) && strcmp(tmp, "no") == 0)
1076 no_prompt = 1;
1077
1078 dn_sect = NCONF_get_string(req_conf, section, DISTINGUISHED_NAME);
1079 if (dn_sect == NULL) {
1080 ERR_clear_error();
1081 } else {
1082 dn_sk = NCONF_get_section(req_conf, dn_sect);
1083 if (dn_sk == NULL) {
1084 BIO_printf(bio_err, "Unable to get '%s' section\n", dn_sect);
1085 goto err;
1086 }
1087 }
1088
1089 attr_sect = NCONF_get_string(req_conf, section, ATTRIBUTES);
1090 if (attr_sect == NULL) {
1091 ERR_clear_error();
1092 } else {
1093 attr_sk = NCONF_get_section(req_conf, attr_sect);
1094 if (attr_sk == NULL) {
1095 BIO_printf(bio_err, "Unable to get '%s' section\n", attr_sect);
1096 goto err;
1097 }
1098 }
1099
1100 /* so far there is only version 1 */
1101 if (!X509_REQ_set_version(req, X509_REQ_VERSION_1))
1102 goto err;
1103
1104 if (fsubj != NULL)
1105 i = X509_REQ_set_subject_name(req, fsubj);
1106 else if (no_prompt)
1107 i = auto_info(req, dn_sk, attr_sk, attribs, chtype);
1108 else
1109 i = prompt_info(req, dn_sk, dn_sect, attr_sk, attr_sect, attribs,
1110 chtype);
1111 if (!i)
1112 goto err;
1113
1114 if (!X509_REQ_set_pubkey(req, pkey))
1115 goto err;
1116
1117 ret = 1;
1118 err:
1119 return ret;
1120 }
1121
1122 static int prompt_info(X509_REQ *req,
1123 STACK_OF(CONF_VALUE) *dn_sk, const char *dn_sect,
1124 STACK_OF(CONF_VALUE) *attr_sk, const char *attr_sect,
1125 int attribs, unsigned long chtype)
1126 {
1127 int i;
1128 char *p, *q;
1129 char buf[100];
1130 int nid, mval;
1131 long n_min, n_max;
1132 char *type, *value;
1133 const char *def;
1134 CONF_VALUE *v;
1135 X509_NAME *subj = X509_REQ_get_subject_name(req);
1136
1137 if (!batch) {
1138 BIO_printf(bio_err,
1139 "You are about to be asked to enter information that will be incorporated\n");
1140 BIO_printf(bio_err, "into your certificate request.\n");
1141 BIO_printf(bio_err,
1142 "What you are about to enter is what is called a Distinguished Name or a DN.\n");
1143 BIO_printf(bio_err,
1144 "There are quite a few fields but you can leave some blank\n");
1145 BIO_printf(bio_err,
1146 "For some fields there will be a default value,\n");
1147 BIO_printf(bio_err,
1148 "If you enter '.', the field will be left blank.\n");
1149 BIO_printf(bio_err, "-----\n");
1150 }
1151
1152 if (sk_CONF_VALUE_num(dn_sk)) {
1153 i = -1;
1154 start:
1155 for (;;) {
1156 i++;
1157 if (sk_CONF_VALUE_num(dn_sk) <= i)
1158 break;
1159
1160 v = sk_CONF_VALUE_value(dn_sk, i);
1161 p = q = NULL;
1162 type = v->name;
1163 if (!check_end(type, "_min") || !check_end(type, "_max") ||
1164 !check_end(type, "_default") || !check_end(type, "_value"))
1165 continue;
1166 /*
1167 * Skip past any leading X. X: X, etc to allow for multiple
1168 * instances
1169 */
1170 for (p = v->name; *p; p++)
1171 if ((*p == ':') || (*p == ',') || (*p == '.')) {
1172 p++;
1173 if (*p)
1174 type = p;
1175 break;
1176 }
1177 if (*type == '+') {
1178 mval = -1;
1179 type++;
1180 } else {
1181 mval = 0;
1182 }
1183 /* If OBJ not recognised ignore it */
1184 if ((nid = OBJ_txt2nid(type)) == NID_undef)
1185 goto start;
1186 if (!join(buf, sizeof(buf), v->name, "_default", "Name"))
1187 return 0;
1188 if ((def = NCONF_get_string(req_conf, dn_sect, buf)) == NULL) {
1189 ERR_clear_error();
1190 def = "";
1191 }
1192
1193 if (!join(buf, sizeof(buf), v->name, "_value", "Name"))
1194 return 0;
1195 if ((value = NCONF_get_string(req_conf, dn_sect, buf)) == NULL) {
1196 ERR_clear_error();
1197 value = NULL;
1198 }
1199
1200 if (!join(buf, sizeof(buf), v->name, "_min", "Name"))
1201 return 0;
1202 if (!NCONF_get_number(req_conf, dn_sect, buf, &n_min)) {
1203 ERR_clear_error();
1204 n_min = -1;
1205 }
1206
1207 if (!join(buf, sizeof(buf), v->name, "_max", "Name"))
1208 return 0;
1209 if (!NCONF_get_number(req_conf, dn_sect, buf, &n_max)) {
1210 ERR_clear_error();
1211 n_max = -1;
1212 }
1213
1214 if (!add_DN_object(subj, v->value, def, value, nid,
1215 n_min, n_max, chtype, mval))
1216 return 0;
1217 }
1218 if (X509_NAME_entry_count(subj) == 0) {
1219 BIO_printf(bio_err, "Error: No objects specified in config file\n");
1220 return 0;
1221 }
1222
1223 if (attribs) {
1224 if ((attr_sk != NULL) && (sk_CONF_VALUE_num(attr_sk) > 0)
1225 && (!batch)) {
1226 BIO_printf(bio_err,
1227 "\nPlease enter the following 'extra' attributes\n");
1228 BIO_printf(bio_err,
1229 "to be sent with your certificate request\n");
1230 }
1231
1232 i = -1;
1233 start2:
1234 for (;;) {
1235 i++;
1236 if ((attr_sk == NULL) || (sk_CONF_VALUE_num(attr_sk) <= i))
1237 break;
1238
1239 v = sk_CONF_VALUE_value(attr_sk, i);
1240 type = v->name;
1241 if ((nid = OBJ_txt2nid(type)) == NID_undef)
1242 goto start2;
1243
1244 if (!join(buf, sizeof(buf), type, "_default", "Name"))
1245 return 0;
1246 if ((def = NCONF_get_string(req_conf, attr_sect, buf))
1247 == NULL) {
1248 ERR_clear_error();
1249 def = "";
1250 }
1251
1252 if (!join(buf, sizeof(buf), type, "_value", "Name"))
1253 return 0;
1254 if ((value = NCONF_get_string(req_conf, attr_sect, buf))
1255 == NULL) {
1256 ERR_clear_error();
1257 value = NULL;
1258 }
1259
1260 if (!join(buf, sizeof(buf), type, "_min", "Name"))
1261 return 0;
1262 if (!NCONF_get_number(req_conf, attr_sect, buf, &n_min)) {
1263 ERR_clear_error();
1264 n_min = -1;
1265 }
1266
1267 if (!join(buf, sizeof(buf), type, "_max", "Name"))
1268 return 0;
1269 if (!NCONF_get_number(req_conf, attr_sect, buf, &n_max)) {
1270 ERR_clear_error();
1271 n_max = -1;
1272 }
1273
1274 if (!add_attribute_object(req,
1275 v->value, def, value, nid, n_min,
1276 n_max, chtype))
1277 return 0;
1278 }
1279 }
1280 } else {
1281 BIO_printf(bio_err, "No template, please set one up.\n");
1282 return 0;
1283 }
1284
1285 return 1;
1286
1287 }
1288
1289 static int auto_info(X509_REQ *req, STACK_OF(CONF_VALUE) *dn_sk,
1290 STACK_OF(CONF_VALUE) *attr_sk, int attribs,
1291 unsigned long chtype)
1292 {
1293 int i, spec_char, plus_char;
1294 char *p, *q;
1295 char *type;
1296 CONF_VALUE *v;
1297 X509_NAME *subj;
1298
1299 subj = X509_REQ_get_subject_name(req);
1300
1301 for (i = 0; i < sk_CONF_VALUE_num(dn_sk); i++) {
1302 int mval;
1303 v = sk_CONF_VALUE_value(dn_sk, i);
1304 p = q = NULL;
1305 type = v->name;
1306 /*
1307 * Skip past any leading X. X: X, etc to allow for multiple instances
1308 */
1309 for (p = v->name; *p; p++) {
1310 #ifndef CHARSET_EBCDIC
1311 spec_char = (*p == ':' || *p == ',' || *p == '.');
1312 #else
1313 spec_char = (*p == os_toascii[':'] || *p == os_toascii[',']
1314 || *p == os_toascii['.']);
1315 #endif
1316 if (spec_char) {
1317 p++;
1318 if (*p)
1319 type = p;
1320 break;
1321 }
1322 }
1323 #ifndef CHARSET_EBCDIC
1324 plus_char = (*type == '+');
1325 #else
1326 plus_char = (*type == os_toascii['+']);
1327 #endif
1328 if (plus_char) {
1329 type++;
1330 mval = -1;
1331 } else {
1332 mval = 0;
1333 }
1334 if (!X509_NAME_add_entry_by_txt(subj, type, chtype,
1335 (unsigned char *)v->value, -1, -1,
1336 mval))
1337 return 0;
1338
1339 }
1340
1341 if (!X509_NAME_entry_count(subj)) {
1342 BIO_printf(bio_err, "Error: No objects specified in config file\n");
1343 return 0;
1344 }
1345 if (attribs) {
1346 for (i = 0; i < sk_CONF_VALUE_num(attr_sk); i++) {
1347 v = sk_CONF_VALUE_value(attr_sk, i);
1348 if (!X509_REQ_add1_attr_by_txt(req, v->name, chtype,
1349 (unsigned char *)v->value, -1))
1350 return 0;
1351 }
1352 }
1353 return 1;
1354 }
1355
1356 static int add_DN_object(X509_NAME *n, char *text, const char *def,
1357 char *value, int nid, int n_min, int n_max,
1358 unsigned long chtype, int mval)
1359 {
1360 int ret = 0;
1361 char buf[1024];
1362
1363 ret = build_data(text, def, value, n_min, n_max, buf, sizeof(buf),
1364 "DN value", "DN default");
1365 if ((ret == 0) || (ret == 1))
1366 return ret;
1367 ret = 1;
1368
1369 if (!X509_NAME_add_entry_by_NID(n, nid, chtype,
1370 (unsigned char *)buf, -1, -1, mval))
1371 ret = 0;
1372
1373 return ret;
1374 }
1375
1376 static int add_attribute_object(X509_REQ *req, char *text, const char *def,
1377 char *value, int nid, int n_min,
1378 int n_max, unsigned long chtype)
1379 {
1380 int ret = 0;
1381 char buf[1024];
1382
1383 ret = build_data(text, def, value, n_min, n_max, buf, sizeof(buf),
1384 "Attribute value", "Attribute default");
1385 if ((ret == 0) || (ret == 1))
1386 return ret;
1387 ret = 1;
1388
1389 if (!X509_REQ_add1_attr_by_NID(req, nid, chtype,
1390 (unsigned char *)buf, -1)) {
1391 BIO_printf(bio_err, "Error adding attribute\n");
1392 ret = 0;
1393 }
1394
1395 return ret;
1396 }
1397
1398 static int build_data(char *text, const char *def, char *value,
1399 int n_min, int n_max, char *buf, const int buf_size,
1400 const char *desc1, const char *desc2)
1401 {
1402 int i;
1403 start:
1404 if (!batch)
1405 BIO_printf(bio_err, "%s [%s]:", text, def);
1406 (void)BIO_flush(bio_err);
1407 if (value != NULL) {
1408 if (!join(buf, buf_size, value, "\n", desc1))
1409 return 0;
1410 BIO_printf(bio_err, "%s\n", value);
1411 } else {
1412 buf[0] = '\0';
1413 if (!batch) {
1414 if (!fgets(buf, buf_size, stdin))
1415 return 0;
1416 } else {
1417 buf[0] = '\n';
1418 buf[1] = '\0';
1419 }
1420 }
1421
1422 if (buf[0] == '\0')
1423 return 0;
1424 if (buf[0] == '\n') {
1425 if ((def == NULL) || (def[0] == '\0'))
1426 return 1;
1427 if (!join(buf, buf_size, def, "\n", desc2))
1428 return 0;
1429 } else if ((buf[0] == '.') && (buf[1] == '\n')) {
1430 return 1;
1431 }
1432
1433 i = strlen(buf);
1434 if (buf[i - 1] != '\n') {
1435 BIO_printf(bio_err, "Missing newline at end of input\n");
1436 return 0;
1437 }
1438 buf[--i] = '\0';
1439 #ifdef CHARSET_EBCDIC
1440 ebcdic2ascii(buf, buf, i);
1441 #endif
1442 if (!req_check_len(i, n_min, n_max)) {
1443 if (batch || value)
1444 return 0;
1445 goto start;
1446 }
1447 return 2;
1448 }
1449
1450 static int req_check_len(int len, int n_min, int n_max)
1451 {
1452 if (n_min > 0 && len < n_min) {
1453 BIO_printf(bio_err,
1454 "String too short, must be at least %d bytes long\n", n_min);
1455 return 0;
1456 }
1457 if (n_max >= 0 && len > n_max) {
1458 BIO_printf(bio_err,
1459 "String too long, must be at most %d bytes long\n", n_max);
1460 return 0;
1461 }
1462 return 1;
1463 }
1464
1465 /* Check if the end of a string matches 'end' */
1466 static int check_end(const char *str, const char *end)
1467 {
1468 size_t elen, slen;
1469 const char *tmp;
1470
1471 elen = strlen(end);
1472 slen = strlen(str);
1473 if (elen > slen)
1474 return 1;
1475 tmp = str + slen - elen;
1476 return strcmp(tmp, end);
1477 }
1478
1479 /*
1480 * Merge the two strings together into the result buffer checking for
1481 * overflow and producing an error message if there is.
1482 */
1483 static int join(char buf[], size_t buf_size, const char *name,
1484 const char *tail, const char *desc)
1485 {
1486 const size_t name_len = strlen(name), tail_len = strlen(tail);
1487
1488 if (name_len + tail_len + 1 > buf_size) {
1489 BIO_printf(bio_err, "%s '%s' too long\n", desc, name);
1490 return 0;
1491 }
1492 memcpy(buf, name, name_len);
1493 memcpy(buf + name_len, tail, tail_len + 1);
1494 return 1;
1495 }
1496
1497 static EVP_PKEY_CTX *set_keygen_ctx(const char *gstr,
1498 char **pkeytype, long *pkeylen,
1499 ENGINE *keygen_engine)
1500 {
1501 EVP_PKEY_CTX *gctx = NULL;
1502 EVP_PKEY *param = NULL;
1503 long keylen = -1;
1504 BIO *pbio = NULL;
1505 const char *keytype = NULL;
1506 size_t keytypelen = 0;
1507 int expect_paramfile = 0;
1508 const char *paramfile = NULL;
1509
1510 /* Treat the first part of gstr, and only that */
1511 if (gstr == NULL) {
1512 /*
1513 * Special case: when no string given, default to RSA and the
1514 * key length given by |*pkeylen|.
1515 */
1516 keytype = "RSA";
1517 keylen = *pkeylen;
1518 } else if (gstr[0] >= '0' && gstr[0] <= '9') {
1519 /* Special case: only keylength given from string, so default to RSA */
1520 keytype = "RSA";
1521 /* The second part treatment will do the rest */
1522 } else {
1523 const char *p = strchr(gstr, ':');
1524 int len;
1525
1526 if (p != NULL)
1527 len = p - gstr;
1528 else
1529 len = strlen(gstr);
1530
1531 if (strncmp(gstr, "param", len) == 0) {
1532 expect_paramfile = 1;
1533 if (p == NULL) {
1534 BIO_printf(bio_err,
1535 "Parameter file requested but no path given: %s\n",
1536 gstr);
1537 return NULL;
1538 }
1539 } else {
1540 keytype = gstr;
1541 keytypelen = len;
1542 }
1543
1544 if (p != NULL)
1545 gstr = gstr + len + 1;
1546 else
1547 gstr = NULL;
1548 }
1549
1550 /* Treat the second part of gstr, if there is one */
1551 if (gstr != NULL) {
1552 /* If the second part starts with a digit, we assume it's a size */
1553 if (!expect_paramfile && gstr[0] >= '0' && gstr[0] <= '9')
1554 keylen = atol(gstr);
1555 else
1556 paramfile = gstr;
1557 }
1558
1559 if (paramfile != NULL) {
1560 pbio = BIO_new_file(paramfile, "r");
1561 if (pbio == NULL) {
1562 BIO_printf(bio_err, "Cannot open parameter file %s\n", paramfile);
1563 return NULL;
1564 }
1565 param = PEM_read_bio_Parameters(pbio, NULL);
1566
1567 if (param == NULL) {
1568 X509 *x;
1569
1570 (void)BIO_reset(pbio);
1571 x = PEM_read_bio_X509(pbio, NULL, NULL, NULL);
1572 if (x != NULL) {
1573 param = X509_get_pubkey(x);
1574 X509_free(x);
1575 }
1576 }
1577
1578 BIO_free(pbio);
1579
1580 if (param == NULL) {
1581 BIO_printf(bio_err, "Error reading parameter file %s\n", paramfile);
1582 return NULL;
1583 }
1584 if (keytype == NULL) {
1585 keytype = EVP_PKEY_get0_type_name(param);
1586 if (keytype == NULL) {
1587 EVP_PKEY_free(param);
1588 BIO_puts(bio_err, "Unable to determine key type\n");
1589 return NULL;
1590 }
1591 }
1592 }
1593
1594 if (keytypelen > 0)
1595 *pkeytype = OPENSSL_strndup(keytype, keytypelen);
1596 else
1597 *pkeytype = OPENSSL_strdup(keytype);
1598 if (keylen >= 0)
1599 *pkeylen = keylen;
1600
1601 if (param != NULL) {
1602 if (!EVP_PKEY_is_a(param, *pkeytype)) {
1603 BIO_printf(bio_err, "Key type does not match parameters\n");
1604 EVP_PKEY_free(param);
1605 return NULL;
1606 }
1607
1608 if (keygen_engine != NULL)
1609 gctx = EVP_PKEY_CTX_new(param, keygen_engine);
1610 else
1611 gctx = EVP_PKEY_CTX_new_from_pkey(app_get0_libctx(),
1612 param, app_get0_propq());
1613 *pkeylen = EVP_PKEY_get_bits(param);
1614 EVP_PKEY_free(param);
1615 } else {
1616 if (keygen_engine != NULL) {
1617 int pkey_id = get_legacy_pkey_id(app_get0_libctx(), *pkeytype,
1618 keygen_engine);
1619
1620 if (pkey_id != NID_undef)
1621 gctx = EVP_PKEY_CTX_new_id(pkey_id, keygen_engine);
1622 } else {
1623 gctx = EVP_PKEY_CTX_new_from_name(app_get0_libctx(),
1624 *pkeytype, app_get0_propq());
1625 }
1626 }
1627
1628 if (gctx == NULL) {
1629 BIO_puts(bio_err, "Error allocating keygen context\n");
1630 return NULL;
1631 }
1632
1633 if (EVP_PKEY_keygen_init(gctx) <= 0) {
1634 BIO_puts(bio_err, "Error initializing keygen context\n");
1635 EVP_PKEY_CTX_free(gctx);
1636 return NULL;
1637 }
1638 if (keylen == -1 && (EVP_PKEY_CTX_is_a(gctx, "RSA")
1639 || EVP_PKEY_CTX_is_a(gctx, "RSA-PSS")))
1640 keylen = *pkeylen;
1641
1642 if (keylen != -1) {
1643 OSSL_PARAM params[] = { OSSL_PARAM_END, OSSL_PARAM_END };
1644 size_t bits = keylen;
1645
1646 params[0] =
1647 OSSL_PARAM_construct_size_t(OSSL_PKEY_PARAM_BITS, &bits);
1648 if (EVP_PKEY_CTX_set_params(gctx, params) <= 0) {
1649 BIO_puts(bio_err, "Error setting keysize\n");
1650 EVP_PKEY_CTX_free(gctx);
1651 return NULL;
1652 }
1653 }
1654
1655 return gctx;
1656 }
1657
1658 static int genpkey_cb(EVP_PKEY_CTX *ctx)
1659 {
1660 char c = '*';
1661 BIO *b = EVP_PKEY_CTX_get_app_data(ctx);
1662 int p;
1663 p = EVP_PKEY_CTX_get_keygen_info(ctx, 0);
1664 if (p == 0)
1665 c = '.';
1666 if (p == 1)
1667 c = '+';
1668 if (p == 2)
1669 c = '*';
1670 if (p == 3)
1671 c = '\n';
1672 BIO_write(b, &c, 1);
1673 (void)BIO_flush(b);
1674 return 1;
1675 }
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