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