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import openssl(1) (LibreSSL 2.5.4)
[unleashed.git] / bin / openssl / req.c
blob352e38b226a798c95069e7705ebc15fb1fe99a0a
1 /* $OpenBSD: req.c,v 1.14 2017/01/20 08:57:12 deraadt Exp $ */
2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3 * All rights reserved.
4 *
5 * This package is an SSL implementation written
6 * by Eric Young (eay@cryptsoft.com).
7 * The implementation was written so as to conform with Netscapes SSL.
8 *
9 * This library is free for commercial and non-commercial use as long as
10 * the following conditions are aheared to. The following conditions
11 * apply to all code found in this distribution, be it the RC4, RSA,
12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
13 * included with this distribution is covered by the same copyright terms
14 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15 *
16 * Copyright remains Eric Young's, and as such any Copyright notices in
17 * the code are not to be removed.
18 * If this package is used in a product, Eric Young should be given attribution
19 * as the author of the parts of the library used.
20 * This can be in the form of a textual message at program startup or
21 * in documentation (online or textual) provided with the package.
22 *
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
25 * are met:
26 * 1. Redistributions of source code must retain the copyright
27 * notice, this list of conditions and the following disclaimer.
28 * 2. Redistributions in binary form must reproduce the above copyright
29 * notice, this list of conditions and the following disclaimer in the
30 * documentation and/or other materials provided with the distribution.
31 * 3. All advertising materials mentioning features or use of this software
32 * must display the following acknowledgement:
33 * "This product includes cryptographic software written by
34 * Eric Young (eay@cryptsoft.com)"
35 * The word 'cryptographic' can be left out if the rouines from the library
36 * being used are not cryptographic related :-).
37 * 4. If you include any Windows specific code (or a derivative thereof) from
38 * the apps directory (application code) you must include an acknowledgement:
39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40 *
41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
51 * SUCH DAMAGE.
52 *
53 * The licence and distribution terms for any publically available version or
54 * derivative of this code cannot be changed. i.e. this code cannot simply be
55 * copied and put under another distribution licence
56 * [including the GNU Public Licence.]
57 */
58
59 /* Until the key-gen callbacks are modified to use newer prototypes, we allow
60 * deprecated functions for openssl-internal code */
61 #ifdef OPENSSL_NO_DEPRECATED
62 #undef OPENSSL_NO_DEPRECATED
63 #endif
64
65 #include <stdio.h>
66 #include <stdlib.h>
67 #include <limits.h>
68 #include <string.h>
69 #include <time.h>
70
71 #include "apps.h"
72
73 #include <openssl/asn1.h>
74 #include <openssl/bio.h>
75 #include <openssl/bn.h>
76 #include <openssl/conf.h>
77 #include <openssl/err.h>
78 #include <openssl/evp.h>
79 #include <openssl/objects.h>
80 #include <openssl/pem.h>
81 #include <openssl/x509.h>
82 #include <openssl/x509v3.h>
83
84 #include <openssl/dsa.h>
85
86 #include <openssl/rsa.h>
87
88 #define SECTION "req"
89
90 #define BITS "default_bits"
91 #define KEYFILE "default_keyfile"
92 #define PROMPT "prompt"
93 #define DISTINGUISHED_NAME "distinguished_name"
94 #define ATTRIBUTES "attributes"
95 #define V3_EXTENSIONS "x509_extensions"
96 #define REQ_EXTENSIONS "req_extensions"
97 #define STRING_MASK "string_mask"
98 #define UTF8_IN "utf8"
99
100 #define DEFAULT_KEY_LENGTH 2048
101 #define MIN_KEY_LENGTH 384
102
103
104 /* -inform arg - input format - default PEM (DER or PEM)
105 * -outform arg - output format - default PEM
106 * -in arg - input file - default stdin
107 * -out arg - output file - default stdout
108 * -verify - check request signature
109 * -noout - don't print stuff out.
110 * -text - print out human readable text.
111 * -nodes - no des encryption
112 * -config file - Load configuration file.
113 * -key file - make a request using key in file (or use it for verification).
114 * -keyform arg - key file format.
115 * -newkey - make a key and a request.
116 * -modulus - print RSA modulus.
117 * -pubkey - output Public Key.
118 * -x509 - output a self signed X509 structure instead.
119 * -asn1-kludge - output new certificate request in a format that some CA's
120 * require. This format is wrong
121 */
122
123 static int make_REQ(X509_REQ * req, EVP_PKEY * pkey, char *dn, int multirdn,
124 int attribs, unsigned long chtype);
125 static int build_subject(X509_REQ * req, char *subj, unsigned long chtype,
126 int multirdn);
127 static int prompt_info(X509_REQ * req,
128 STACK_OF(CONF_VALUE) * dn_sk, char *dn_sect,
129 STACK_OF(CONF_VALUE) * attr_sk, char *attr_sect, int attribs,
130 unsigned long chtype);
131 static int auto_info(X509_REQ * req, STACK_OF(CONF_VALUE) * sk,
132 STACK_OF(CONF_VALUE) * attr, int attribs,
133 unsigned long chtype);
134 static int add_attribute_object(X509_REQ * req, char *text, const char *def,
135 char *value, int nid, int n_min,
136 int n_max, unsigned long chtype);
137 static int add_DN_object(X509_NAME * n, char *text, const char *def, char *value,
138 int nid, int n_min, int n_max, unsigned long chtype, int mval);
139 static int genpkey_cb(EVP_PKEY_CTX * ctx);
140 static int req_check_len(int len, int n_min, int n_max);
141 static int check_end(const char *str, const char *end);
142 static EVP_PKEY_CTX *set_keygen_ctx(BIO * err, const char *gstr, int *pkey_type,
143 long *pkeylen, char **palgnam);
144 static CONF *req_conf = NULL;
145 static int batch = 0;
146
147 int
148 req_main(int argc, char **argv)
149 {
150 unsigned long nmflag = 0, reqflag = 0;
151 int ex = 1, x509 = 0, days = 30;
152 X509 *x509ss = NULL;
153 X509_REQ *req = NULL;
154 EVP_PKEY_CTX *genctx = NULL;
155 const char *keyalg = NULL;
156 char *keyalgstr = NULL;
157 STACK_OF(OPENSSL_STRING) * pkeyopts = NULL, *sigopts = NULL;
158 EVP_PKEY *pkey = NULL;
159 int i = 0, badops = 0, newreq = 0, verbose = 0, pkey_type = -1;
160 long newkey = -1;
161 BIO *in = NULL, *out = NULL;
162 int informat, outformat, verify = 0, noout = 0, text = 0, keyform = FORMAT_PEM;
163 int nodes = 0, kludge = 0, newhdr = 0, subject = 0, pubkey = 0;
164 char *infile, *outfile, *prog, *keyfile = NULL, *template = NULL,
165 *keyout = NULL;
166 char *extensions = NULL;
167 char *req_exts = NULL;
168 const EVP_CIPHER *cipher = NULL;
169 ASN1_INTEGER *serial = NULL;
170 int modulus = 0;
171 char *passargin = NULL, *passargout = NULL;
172 char *passin = NULL, *passout = NULL;
173 char *p;
174 char *subj = NULL;
175 int multirdn = 0;
176 const EVP_MD *md_alg = NULL, *digest = NULL;
177 unsigned long chtype = MBSTRING_ASC;
178
179 if (single_execution) {
180 if (pledge("stdio cpath wpath rpath tty", NULL) == -1) {
181 perror("pledge");
182 exit(1);
183 }
184 }
185
186 req_conf = NULL;
187 cipher = EVP_aes_256_cbc();
188 digest = EVP_sha256();
189
190 infile = NULL;
191 outfile = NULL;
192 informat = FORMAT_PEM;
193 outformat = FORMAT_PEM;
194
195 prog = argv[0];
196 argc--;
197 argv++;
198 while (argc >= 1) {
199 if (strcmp(*argv, "-inform") == 0) {
200 if (--argc < 1)
201 goto bad;
202 informat = str2fmt(*(++argv));
203 } else if (strcmp(*argv, "-outform") == 0) {
204 if (--argc < 1)
205 goto bad;
206 outformat = str2fmt(*(++argv));
207 }
208 else if (strcmp(*argv, "-key") == 0) {
209 if (--argc < 1)
210 goto bad;
211 keyfile = *(++argv);
212 } else if (strcmp(*argv, "-pubkey") == 0) {
213 pubkey = 1;
214 } else if (strcmp(*argv, "-new") == 0) {
215 newreq = 1;
216 } else if (strcmp(*argv, "-config") == 0) {
217 if (--argc < 1)
218 goto bad;
219 template = *(++argv);
220 } else if (strcmp(*argv, "-keyform") == 0) {
221 if (--argc < 1)
222 goto bad;
223 keyform = str2fmt(*(++argv));
224 } else if (strcmp(*argv, "-in") == 0) {
225 if (--argc < 1)
226 goto bad;
227 infile = *(++argv);
228 } else if (strcmp(*argv, "-out") == 0) {
229 if (--argc < 1)
230 goto bad;
231 outfile = *(++argv);
232 } else if (strcmp(*argv, "-keyout") == 0) {
233 if (--argc < 1)
234 goto bad;
235 keyout = *(++argv);
236 } else if (strcmp(*argv, "-passin") == 0) {
237 if (--argc < 1)
238 goto bad;
239 passargin = *(++argv);
240 } else if (strcmp(*argv, "-passout") == 0) {
241 if (--argc < 1)
242 goto bad;
243 passargout = *(++argv);
244 } else if (strcmp(*argv, "-newkey") == 0) {
245 if (--argc < 1)
246 goto bad;
247 keyalg = *(++argv);
248 newreq = 1;
249 } else if (strcmp(*argv, "-pkeyopt") == 0) {
250 if (--argc < 1)
251 goto bad;
252 if (!pkeyopts)
253 pkeyopts = sk_OPENSSL_STRING_new_null();
254 if (!pkeyopts || !sk_OPENSSL_STRING_push(pkeyopts, *(++argv)))
255 goto bad;
256 } else if (strcmp(*argv, "-sigopt") == 0) {
257 if (--argc < 1)
258 goto bad;
259 if (!sigopts)
260 sigopts = sk_OPENSSL_STRING_new_null();
261 if (!sigopts || !sk_OPENSSL_STRING_push(sigopts, *(++argv)))
262 goto bad;
263 } else if (strcmp(*argv, "-batch") == 0)
264 batch = 1;
265 else if (strcmp(*argv, "-newhdr") == 0)
266 newhdr = 1;
267 else if (strcmp(*argv, "-modulus") == 0)
268 modulus = 1;
269 else if (strcmp(*argv, "-verify") == 0)
270 verify = 1;
271 else if (strcmp(*argv, "-nodes") == 0)
272 nodes = 1;
273 else if (strcmp(*argv, "-noout") == 0)
274 noout = 1;
275 else if (strcmp(*argv, "-verbose") == 0)
276 verbose = 1;
277 else if (strcmp(*argv, "-utf8") == 0)
278 chtype = MBSTRING_UTF8;
279 else if (strcmp(*argv, "-nameopt") == 0) {
280 if (--argc < 1)
281 goto bad;
282 if (!set_name_ex(&nmflag, *(++argv)))
283 goto bad;
284 } else if (strcmp(*argv, "-reqopt") == 0) {
285 if (--argc < 1)
286 goto bad;
287 if (!set_cert_ex(&reqflag, *(++argv)))
288 goto bad;
289 } else if (strcmp(*argv, "-subject") == 0)
290 subject = 1;
291 else if (strcmp(*argv, "-text") == 0)
292 text = 1;
293 else if (strcmp(*argv, "-x509") == 0)
294 x509 = 1;
295 else if (strcmp(*argv, "-asn1-kludge") == 0)
296 kludge = 1;
297 else if (strcmp(*argv, "-no-asn1-kludge") == 0)
298 kludge = 0;
299 else if (strcmp(*argv, "-subj") == 0) {
300 if (--argc < 1)
301 goto bad;
302 subj = *(++argv);
303 } else if (strcmp(*argv, "-multivalue-rdn") == 0)
304 multirdn = 1;
305 else if (strcmp(*argv, "-days") == 0) {
306 const char *errstr;
307
308 if (--argc < 1)
309 goto bad;
310 days = strtonum(*(++argv), 1, INT_MAX, &errstr);
311 if (errstr) {
312 BIO_printf(bio_err, "bad -days %s, using 0: %s\n",
313 *argv, errstr);
314 days = 30;
315 }
316 } else if (strcmp(*argv, "-set_serial") == 0) {
317 if (--argc < 1)
318 goto bad;
319 serial = s2i_ASN1_INTEGER(NULL, *(++argv));
320 if (!serial)
321 goto bad;
322 } else if (strcmp(*argv, "-extensions") == 0) {
323 if (--argc < 1)
324 goto bad;
325 extensions = *(++argv);
326 } else if (strcmp(*argv, "-reqexts") == 0) {
327 if (--argc < 1)
328 goto bad;
329 req_exts = *(++argv);
330 } else if ((md_alg = EVP_get_digestbyname(&((*argv)[1]))) != NULL) {
331 /* ok */
332 digest = md_alg;
333 } else {
334 BIO_printf(bio_err, "unknown option %s\n", *argv);
335 badops = 1;
336 break;
337 }
338 argc--;
339 argv++;
340 }
341
342 if (badops) {
343 bad:
344 BIO_printf(bio_err, "%s [options] <infile >outfile\n", prog);
345 BIO_printf(bio_err, "where options are\n");
346 BIO_printf(bio_err, " -inform arg input format - DER or PEM\n");
347 BIO_printf(bio_err, " -outform arg output format - DER or PEM\n");
348 BIO_printf(bio_err, " -in arg input file\n");
349 BIO_printf(bio_err, " -out arg output file\n");
350 BIO_printf(bio_err, " -text text form of request\n");
351 BIO_printf(bio_err, " -pubkey output public key\n");
352 BIO_printf(bio_err, " -noout do not output REQ\n");
353 BIO_printf(bio_err, " -verify verify signature on REQ\n");
354 BIO_printf(bio_err, " -modulus RSA modulus\n");
355 BIO_printf(bio_err, " -nodes don't encrypt the output key\n");
356 BIO_printf(bio_err, " -subject output the request's subject\n");
357 BIO_printf(bio_err, " -passin private key password source\n");
358 BIO_printf(bio_err, " -key file use the private key contained in file\n");
359 BIO_printf(bio_err, " -keyform arg key file format\n");
360 BIO_printf(bio_err, " -keyout arg file to send the key to\n");
361 BIO_printf(bio_err, " -newkey rsa:bits generate a new RSA key of 'bits' in size\n");
362 BIO_printf(bio_err, " -newkey dsa:file generate a new DSA key, parameters taken from CA in 'file'\n");
363 BIO_printf(bio_err, " -newkey ec:file generate a new EC key, parameters taken from CA in 'file'\n");
364 BIO_printf(bio_err, " -[digest] Digest to sign with (md5, sha1, md4)\n");
365 BIO_printf(bio_err, " -config file request template file.\n");
366 BIO_printf(bio_err, " -subj arg set or modify request subject\n");
367 BIO_printf(bio_err, " -multivalue-rdn enable support for multivalued RDNs\n");
368 BIO_printf(bio_err, " -new new request.\n");
369 BIO_printf(bio_err, " -batch do not ask anything during request generation\n");
370 BIO_printf(bio_err, " -x509 output a x509 structure instead of a cert. req.\n");
371 BIO_printf(bio_err, " -days number of days a certificate generated by -x509 is valid for.\n");
372 BIO_printf(bio_err, " -set_serial serial number to use for a certificate generated by -x509.\n");
373 BIO_printf(bio_err, " -newhdr output \"NEW\" in the header lines\n");
374 BIO_printf(bio_err, " -asn1-kludge Output the 'request' in a format that is wrong but some CA's\n");
375 BIO_printf(bio_err, " have been reported as requiring\n");
376 BIO_printf(bio_err, " -extensions .. specify certificate extension section (override value in config file)\n");
377 BIO_printf(bio_err, " -reqexts .. specify request extension section (override value in config file)\n");
378 BIO_printf(bio_err, " -utf8 input characters are UTF8 (default ASCII)\n");
379 BIO_printf(bio_err, " -nameopt arg - various certificate name options\n");
380 BIO_printf(bio_err, " -reqopt arg - various request text options\n\n");
381 goto end;
382 }
383
384 if (!app_passwd(bio_err, passargin, passargout, &passin, &passout)) {
385 BIO_printf(bio_err, "Error getting passwords\n");
386 goto end;
387 }
388 if (template != NULL) {
389 long errline = -1;
390
391 if (verbose)
392 BIO_printf(bio_err, "Using configuration from %s\n", template);
393 req_conf = NCONF_new(NULL);
394 i = NCONF_load(req_conf, template, &errline);
395 if (i == 0) {
396 BIO_printf(bio_err, "error on line %ld of %s\n", errline, template);
397 goto end;
398 }
399 } else {
400 req_conf = config;
401
402 if (req_conf == NULL) {
403 BIO_printf(bio_err, "Unable to load config info from %s\n", default_config_file);
404 if (newreq)
405 goto end;
406 } else if (verbose)
407 BIO_printf(bio_err, "Using configuration from %s\n",
408 default_config_file);
409 }
410
411 if (req_conf != NULL) {
412 if (!load_config(bio_err, req_conf))
413 goto end;
414 p = NCONF_get_string(req_conf, NULL, "oid_file");
415 if (p == NULL)
416 ERR_clear_error();
417 if (p != NULL) {
418 BIO *oid_bio;
419
420 oid_bio = BIO_new_file(p, "r");
421 if (oid_bio == NULL) {
422 /*
423 BIO_printf(bio_err,"problems opening %s for extra oid's\n",p);
424 ERR_print_errors(bio_err);
425 */
426 } else {
427 OBJ_create_objects(oid_bio);
428 BIO_free(oid_bio);
429 }
430 }
431 }
432 if (!add_oid_section(bio_err, req_conf))
433 goto end;
434
435 if (md_alg == NULL) {
436 p = NCONF_get_string(req_conf, SECTION, "default_md");
437 if (p == NULL)
438 ERR_clear_error();
439 if (p != NULL) {
440 if ((md_alg = EVP_get_digestbyname(p)) != NULL)
441 digest = md_alg;
442 }
443 }
444 if (!extensions) {
445 extensions = NCONF_get_string(req_conf, SECTION, V3_EXTENSIONS);
446 if (!extensions)
447 ERR_clear_error();
448 }
449 if (extensions) {
450 /* Check syntax of file */
451 X509V3_CTX ctx;
452 X509V3_set_ctx_test(&ctx);
453 X509V3_set_nconf(&ctx, req_conf);
454 if (!X509V3_EXT_add_nconf(req_conf, &ctx, extensions, NULL)) {
455 BIO_printf(bio_err,
456 "Error Loading extension section %s\n", extensions);
457 goto end;
458 }
459 }
460 if (!passin) {
461 passin = NCONF_get_string(req_conf, SECTION, "input_password");
462 if (!passin)
463 ERR_clear_error();
464 }
465 if (!passout) {
466 passout = NCONF_get_string(req_conf, SECTION, "output_password");
467 if (!passout)
468 ERR_clear_error();
469 }
470 p = NCONF_get_string(req_conf, SECTION, STRING_MASK);
471 if (!p)
472 ERR_clear_error();
473
474 if (p && !ASN1_STRING_set_default_mask_asc(p)) {
475 BIO_printf(bio_err, "Invalid global string mask setting %s\n", p);
476 goto end;
477 }
478 if (chtype != MBSTRING_UTF8) {
479 p = NCONF_get_string(req_conf, SECTION, UTF8_IN);
480 if (!p)
481 ERR_clear_error();
482 else if (!strcmp(p, "yes"))
483 chtype = MBSTRING_UTF8;
484 }
485 if (!req_exts) {
486 req_exts = NCONF_get_string(req_conf, SECTION, REQ_EXTENSIONS);
487 if (!req_exts)
488 ERR_clear_error();
489 }
490 if (req_exts) {
491 /* Check syntax of file */
492 X509V3_CTX ctx;
493 X509V3_set_ctx_test(&ctx);
494 X509V3_set_nconf(&ctx, req_conf);
495 if (!X509V3_EXT_add_nconf(req_conf, &ctx, req_exts, NULL)) {
496 BIO_printf(bio_err,
497 "Error Loading request extension section %s\n",
498 req_exts);
499 goto end;
500 }
501 }
502 in = BIO_new(BIO_s_file());
503 out = BIO_new(BIO_s_file());
504 if ((in == NULL) || (out == NULL))
505 goto end;
506
507 if (keyfile != NULL) {
508 pkey = load_key(bio_err, keyfile, keyform, 0, passin,
509 "Private Key");
510 if (!pkey) {
511 /*
512 * load_key() has already printed an appropriate
513 * message
514 */
515 goto end;
516 }
517 }
518 if (newreq && (pkey == NULL)) {
519 if (!NCONF_get_number(req_conf, SECTION, BITS, &newkey)) {
520 newkey = DEFAULT_KEY_LENGTH;
521 }
522 if (keyalg) {
523 genctx = set_keygen_ctx(bio_err, keyalg, &pkey_type, &newkey,
524 &keyalgstr);
525 if (!genctx)
526 goto end;
527 }
528 if (newkey < MIN_KEY_LENGTH && (pkey_type == EVP_PKEY_RSA || pkey_type == EVP_PKEY_DSA)) {
529 BIO_printf(bio_err, "private key length is too short,\n");
530 BIO_printf(bio_err, "it needs to be at least %d bits, not %ld\n", MIN_KEY_LENGTH, newkey);
531 goto end;
532 }
533 if (!genctx) {
534 genctx = set_keygen_ctx(bio_err, NULL, &pkey_type, &newkey,
535 &keyalgstr);
536 if (!genctx)
537 goto end;
538 }
539 if (pkeyopts) {
540 char *genopt;
541 for (i = 0; i < sk_OPENSSL_STRING_num(pkeyopts); i++) {
542 genopt = sk_OPENSSL_STRING_value(pkeyopts, i);
543 if (pkey_ctrl_string(genctx, genopt) <= 0) {
544 BIO_printf(bio_err,
545 "parameter error \"%s\"\n",
546 genopt);
547 ERR_print_errors(bio_err);
548 goto end;
549 }
550 }
551 }
552 BIO_printf(bio_err, "Generating a %ld bit %s private key\n",
553 newkey, keyalgstr);
554
555 EVP_PKEY_CTX_set_cb(genctx, genpkey_cb);
556 EVP_PKEY_CTX_set_app_data(genctx, bio_err);
557
558 if (EVP_PKEY_keygen(genctx, &pkey) <= 0) {
559 BIO_puts(bio_err, "Error Generating Key\n");
560 goto end;
561 }
562 EVP_PKEY_CTX_free(genctx);
563 genctx = NULL;
564
565 if (keyout == NULL) {
566 keyout = NCONF_get_string(req_conf, SECTION, KEYFILE);
567 if (keyout == NULL)
568 ERR_clear_error();
569 }
570 if (keyout == NULL) {
571 BIO_printf(bio_err, "writing new private key to stdout\n");
572 BIO_set_fp(out, stdout, BIO_NOCLOSE);
573 } else {
574 BIO_printf(bio_err, "writing new private key to '%s'\n", keyout);
575 if (BIO_write_filename(out, keyout) <= 0) {
576 perror(keyout);
577 goto end;
578 }
579 }
580
581 p = NCONF_get_string(req_conf, SECTION, "encrypt_rsa_key");
582 if (p == NULL) {
583 ERR_clear_error();
584 p = NCONF_get_string(req_conf, SECTION, "encrypt_key");
585 if (p == NULL)
586 ERR_clear_error();
587 }
588 if ((p != NULL) && (strcmp(p, "no") == 0))
589 cipher = NULL;
590 if (nodes)
591 cipher = NULL;
592
593 i = 0;
594 loop:
595 if (!PEM_write_bio_PrivateKey(out, pkey, cipher,
596 NULL, 0, NULL, passout)) {
597 if ((ERR_GET_REASON(ERR_peek_error()) ==
598 PEM_R_PROBLEMS_GETTING_PASSWORD) && (i < 3)) {
599 ERR_clear_error();
600 i++;
601 goto loop;
602 }
603 goto end;
604 }
605 BIO_printf(bio_err, "-----\n");
606 }
607 if (!newreq) {
608 /*
609 * Since we are using a pre-existing certificate request, the
610 * kludge 'format' info should not be changed.
611 */
612 kludge = -1;
613 if (infile == NULL)
614 BIO_set_fp(in, stdin, BIO_NOCLOSE);
615 else {
616 if (BIO_read_filename(in, infile) <= 0) {
617 perror(infile);
618 goto end;
619 }
620 }
621
622 if (informat == FORMAT_ASN1)
623 req = d2i_X509_REQ_bio(in, NULL);
624 else if (informat == FORMAT_PEM)
625 req = PEM_read_bio_X509_REQ(in, NULL, NULL, NULL);
626 else {
627 BIO_printf(bio_err, "bad input format specified for X509 request\n");
628 goto end;
629 }
630 if (req == NULL) {
631 BIO_printf(bio_err, "unable to load X509 request\n");
632 goto end;
633 }
634 }
635 if (newreq || x509) {
636 if (pkey == NULL) {
637 BIO_printf(bio_err, "you need to specify a private key\n");
638 goto end;
639 }
640 if (req == NULL) {
641 req = X509_REQ_new();
642 if (req == NULL) {
643 goto end;
644 }
645 i = make_REQ(req, pkey, subj, multirdn, !x509, chtype);
646 subj = NULL; /* done processing '-subj' option */
647 if ((kludge > 0) && !sk_X509_ATTRIBUTE_num(req->req_info->attributes)) {
648 sk_X509_ATTRIBUTE_free(req->req_info->attributes);
649 req->req_info->attributes = NULL;
650 }
651 if (!i) {
652 BIO_printf(bio_err, "problems making Certificate Request\n");
653 goto end;
654 }
655 }
656 if (x509) {
657 EVP_PKEY *tmppkey;
658 X509V3_CTX ext_ctx;
659 if ((x509ss = X509_new()) == NULL)
660 goto end;
661
662 /* Set version to V3 */
663 if (extensions && !X509_set_version(x509ss, 2))
664 goto end;
665 if (serial) {
666 if (!X509_set_serialNumber(x509ss, serial))
667 goto end;
668 } else {
669 if (!rand_serial(NULL,
670 X509_get_serialNumber(x509ss)))
671 goto end;
672 }
673
674 if (!X509_set_issuer_name(x509ss, X509_REQ_get_subject_name(req)))
675 goto end;
676 if (!X509_gmtime_adj(X509_get_notBefore(x509ss), 0))
677 goto end;
678 if (!X509_time_adj_ex(X509_get_notAfter(x509ss), days, 0, NULL))
679 goto end;
680 if (!X509_set_subject_name(x509ss, X509_REQ_get_subject_name(req)))
681 goto end;
682 tmppkey = X509_REQ_get_pubkey(req);
683 if (!tmppkey || !X509_set_pubkey(x509ss, tmppkey))
684 goto end;
685 EVP_PKEY_free(tmppkey);
686
687 /* Set up V3 context struct */
688
689 X509V3_set_ctx(&ext_ctx, x509ss, x509ss, NULL, NULL, 0);
690 X509V3_set_nconf(&ext_ctx, req_conf);
691
692 /* Add extensions */
693 if (extensions && !X509V3_EXT_add_nconf(req_conf,
694 &ext_ctx, extensions, x509ss)) {
695 BIO_printf(bio_err,
696 "Error Loading extension section %s\n",
697 extensions);
698 goto end;
699 }
700 i = do_X509_sign(bio_err, x509ss, pkey, digest, sigopts);
701 if (!i) {
702 ERR_print_errors(bio_err);
703 goto end;
704 }
705 } else {
706 X509V3_CTX ext_ctx;
707
708 /* Set up V3 context struct */
709
710 X509V3_set_ctx(&ext_ctx, NULL, NULL, req, NULL, 0);
711 X509V3_set_nconf(&ext_ctx, req_conf);
712
713 /* Add extensions */
714 if (req_exts && !X509V3_EXT_REQ_add_nconf(req_conf,
715 &ext_ctx, req_exts, req)) {
716 BIO_printf(bio_err,
717 "Error Loading extension section %s\n",
718 req_exts);
719 goto end;
720 }
721 i = do_X509_REQ_sign(bio_err, req, pkey, digest, sigopts);
722 if (!i) {
723 ERR_print_errors(bio_err);
724 goto end;
725 }
726 }
727 }
728 if (subj && x509) {
729 BIO_printf(bio_err, "Cannot modifiy certificate subject\n");
730 goto end;
731 }
732 if (subj && !x509) {
733 if (verbose) {
734 BIO_printf(bio_err, "Modifying Request's Subject\n");
735 print_name(bio_err, "old subject=", X509_REQ_get_subject_name(req), nmflag);
736 }
737 if (build_subject(req, subj, chtype, multirdn) == 0) {
738 BIO_printf(bio_err, "ERROR: cannot modify subject\n");
739 ex = 1;
740 goto end;
741 }
742 req->req_info->enc.modified = 1;
743
744 if (verbose) {
745 print_name(bio_err, "new subject=", X509_REQ_get_subject_name(req), nmflag);
746 }
747 }
748 if (verify && !x509) {
749 int tmp = 0;
750
751 if (pkey == NULL) {
752 pkey = X509_REQ_get_pubkey(req);
753 tmp = 1;
754 if (pkey == NULL)
755 goto end;
756 }
757 i = X509_REQ_verify(req, pkey);
758 if (tmp) {
759 EVP_PKEY_free(pkey);
760 pkey = NULL;
761 }
762 if (i < 0) {
763 goto end;
764 } else if (i == 0) {
765 BIO_printf(bio_err, "verify failure\n");
766 ERR_print_errors(bio_err);
767 } else /* if (i > 0) */
768 BIO_printf(bio_err, "verify OK\n");
769 }
770 if (noout && !text && !modulus && !subject && !pubkey) {
771 ex = 0;
772 goto end;
773 }
774 if (outfile == NULL) {
775 BIO_set_fp(out, stdout, BIO_NOCLOSE);
776 } else {
777 if ((keyout != NULL) && (strcmp(outfile, keyout) == 0))
778 i = (int) BIO_append_filename(out, outfile);
779 else
780 i = (int) BIO_write_filename(out, outfile);
781 if (!i) {
782 perror(outfile);
783 goto end;
784 }
785 }
786
787 if (pubkey) {
788 EVP_PKEY *tpubkey;
789 tpubkey = X509_REQ_get_pubkey(req);
790 if (tpubkey == NULL) {
791 BIO_printf(bio_err, "Error getting public key\n");
792 ERR_print_errors(bio_err);
793 goto end;
794 }
795 PEM_write_bio_PUBKEY(out, tpubkey);
796 EVP_PKEY_free(tpubkey);
797 }
798 if (text) {
799 if (x509)
800 X509_print_ex(out, x509ss, nmflag, reqflag);
801 else
802 X509_REQ_print_ex(out, req, nmflag, reqflag);
803 }
804 if (subject) {
805 if (x509)
806 print_name(out, "subject=", X509_get_subject_name(x509ss), nmflag);
807 else
808 print_name(out, "subject=", X509_REQ_get_subject_name(req), nmflag);
809 }
810 if (modulus) {
811 EVP_PKEY *tpubkey;
812
813 if (x509)
814 tpubkey = X509_get_pubkey(x509ss);
815 else
816 tpubkey = X509_REQ_get_pubkey(req);
817 if (tpubkey == NULL) {
818 fprintf(stdout, "Modulus=unavailable\n");
819 goto end;
820 }
821 fprintf(stdout, "Modulus=");
822 if (EVP_PKEY_base_id(tpubkey) == EVP_PKEY_RSA)
823 BN_print(out, tpubkey->pkey.rsa->n);
824 else
825 fprintf(stdout, "Wrong Algorithm type");
826 EVP_PKEY_free(tpubkey);
827 fprintf(stdout, "\n");
828 }
829 if (!noout && !x509) {
830 if (outformat == FORMAT_ASN1)
831 i = i2d_X509_REQ_bio(out, req);
832 else if (outformat == FORMAT_PEM) {
833 if (newhdr)
834 i = PEM_write_bio_X509_REQ_NEW(out, req);
835 else
836 i = PEM_write_bio_X509_REQ(out, req);
837 } else {
838 BIO_printf(bio_err, "bad output format specified for outfile\n");
839 goto end;
840 }
841 if (!i) {
842 BIO_printf(bio_err, "unable to write X509 request\n");
843 goto end;
844 }
845 }
846 if (!noout && x509 && (x509ss != NULL)) {
847 if (outformat == FORMAT_ASN1)
848 i = i2d_X509_bio(out, x509ss);
849 else if (outformat == FORMAT_PEM)
850 i = PEM_write_bio_X509(out, x509ss);
851 else {
852 BIO_printf(bio_err, "bad output format specified for outfile\n");
853 goto end;
854 }
855 if (!i) {
856 BIO_printf(bio_err, "unable to write X509 certificate\n");
857 goto end;
858 }
859 }
860 ex = 0;
861 end:
862 if (ex) {
863 ERR_print_errors(bio_err);
864 }
865 if ((req_conf != NULL) && (req_conf != config))
866 NCONF_free(req_conf);
867 BIO_free(in);
868 BIO_free_all(out);
869 EVP_PKEY_free(pkey);
870 if (genctx)
871 EVP_PKEY_CTX_free(genctx);
872 if (pkeyopts)
873 sk_OPENSSL_STRING_free(pkeyopts);
874 if (sigopts)
875 sk_OPENSSL_STRING_free(sigopts);
876 free(keyalgstr);
877 X509_REQ_free(req);
878 X509_free(x509ss);
879 ASN1_INTEGER_free(serial);
880 if (passargin && passin)
881 free(passin);
882 if (passargout && passout)
883 free(passout);
884 OBJ_cleanup();
885
886 return (ex);
887 }
888
889 static int
890 make_REQ(X509_REQ * req, EVP_PKEY * pkey, char *subj, int multirdn,
891 int attribs, unsigned long chtype)
892 {
893 int ret = 0, i;
894 char no_prompt = 0;
895 STACK_OF(CONF_VALUE) * dn_sk, *attr_sk = NULL;
896 char *tmp, *dn_sect, *attr_sect;
897
898 tmp = NCONF_get_string(req_conf, SECTION, PROMPT);
899 if (tmp == NULL)
900 ERR_clear_error();
901 if ((tmp != NULL) && !strcmp(tmp, "no"))
902 no_prompt = 1;
903
904 dn_sect = NCONF_get_string(req_conf, SECTION, DISTINGUISHED_NAME);
905 if (dn_sect == NULL) {
906 BIO_printf(bio_err, "unable to find '%s' in config\n",
907 DISTINGUISHED_NAME);
908 goto err;
909 }
910 dn_sk = NCONF_get_section(req_conf, dn_sect);
911 if (dn_sk == NULL) {
912 BIO_printf(bio_err, "unable to get '%s' section\n", dn_sect);
913 goto err;
914 }
915 attr_sect = NCONF_get_string(req_conf, SECTION, ATTRIBUTES);
916 if (attr_sect == NULL) {
917 ERR_clear_error();
918 attr_sk = NULL;
919 } else {
920 attr_sk = NCONF_get_section(req_conf, attr_sect);
921 if (attr_sk == NULL) {
922 BIO_printf(bio_err, "unable to get '%s' section\n", attr_sect);
923 goto err;
924 }
925 }
926
927 /* setup version number */
928 if (!X509_REQ_set_version(req, 0L))
929 goto err; /* version 1 */
930
931 if (no_prompt)
932 i = auto_info(req, dn_sk, attr_sk, attribs, chtype);
933 else {
934 if (subj)
935 i = build_subject(req, subj, chtype, multirdn);
936 else
937 i = prompt_info(req, dn_sk, dn_sect, attr_sk, attr_sect, attribs, chtype);
938 }
939 if (!i)
940 goto err;
941
942 if (!X509_REQ_set_pubkey(req, pkey))
943 goto err;
944
945 ret = 1;
946 err:
947 return (ret);
948 }
949
950 /*
951 * subject is expected to be in the format /type0=value0/type1=value1/type2=...
952 * where characters may be escaped by \
953 */
954 static int
955 build_subject(X509_REQ * req, char *subject, unsigned long chtype, int multirdn)
956 {
957 X509_NAME *n;
958
959 if (!(n = parse_name(subject, chtype, multirdn)))
960 return 0;
961
962 if (!X509_REQ_set_subject_name(req, n)) {
963 X509_NAME_free(n);
964 return 0;
965 }
966 X509_NAME_free(n);
967 return 1;
968 }
969
970
971 static int
972 prompt_info(X509_REQ * req,
973 STACK_OF(CONF_VALUE) * dn_sk, char *dn_sect,
974 STACK_OF(CONF_VALUE) * attr_sk, char *attr_sect, int attribs,
975 unsigned long chtype)
976 {
977 int i;
978 char *p, *q;
979 char buf[100];
980 int nid, mval;
981 long n_min, n_max;
982 char *type, *value;
983 const char *def;
984 CONF_VALUE *v;
985 X509_NAME *subj;
986 subj = X509_REQ_get_subject_name(req);
987
988 if (!batch) {
989 BIO_printf(bio_err, "You are about to be asked to enter information that will be incorporated\n");
990 BIO_printf(bio_err, "into your certificate request.\n");
991 BIO_printf(bio_err, "What you are about to enter is what is called a Distinguished Name or a DN.\n");
992 BIO_printf(bio_err, "There are quite a few fields but you can leave some blank\n");
993 BIO_printf(bio_err, "For some fields there will be a default value,\n");
994 BIO_printf(bio_err, "If you enter '.', the field will be left blank.\n");
995 BIO_printf(bio_err, "-----\n");
996 }
997 if (sk_CONF_VALUE_num(dn_sk)) {
998 i = -1;
999 start: for (;;) {
1000 int ret;
1001 i++;
1002 if (sk_CONF_VALUE_num(dn_sk) <= i)
1003 break;
1004
1005 v = sk_CONF_VALUE_value(dn_sk, i);
1006 p = q = NULL;
1007 type = v->name;
1008 if (!check_end(type, "_min") || !check_end(type, "_max") ||
1009 !check_end(type, "_default") ||
1010 !check_end(type, "_value"))
1011 continue;
1012 /*
1013 * Skip past any leading X. X: X, etc to allow for
1014 * multiple instances
1015 */
1016 for (p = v->name; *p; p++)
1017 if ((*p == ':') || (*p == ',') ||
1018 (*p == '.')) {
1019 p++;
1020 if (*p)
1021 type = p;
1022 break;
1023 }
1024 if (*type == '+') {
1025 mval = -1;
1026 type++;
1027 } else
1028 mval = 0;
1029 /* If OBJ not recognised ignore it */
1030 if ((nid = OBJ_txt2nid(type)) == NID_undef)
1031 goto start;
1032 ret = snprintf(buf, sizeof buf, "%s_default", v->name);
1033 if (ret == -1 || ret >= sizeof(buf)) {
1034 BIO_printf(bio_err, "Name '%s' too long for default\n",
1035 v->name);
1036 return 0;
1037 }
1038 if ((def = NCONF_get_string(req_conf, dn_sect, buf)) == NULL) {
1039 ERR_clear_error();
1040 def = "";
1041 }
1042 ret = snprintf(buf, sizeof buf, "%s_value", v->name);
1043 if (ret == -1 || ret >= sizeof(buf)) {
1044 BIO_printf(bio_err, "Name '%s' too long for value\n",
1045 v->name);
1046 return 0;
1047 }
1048 if ((value = NCONF_get_string(req_conf, dn_sect, buf)) == NULL) {
1049 ERR_clear_error();
1050 value = NULL;
1051 }
1052 ret = snprintf(buf, sizeof buf, "%s_min", v->name);
1053 if (ret == -1 || ret >= sizeof(buf)) {
1054 BIO_printf(bio_err, "Name '%s' too long for min\n",
1055 v->name);
1056 return 0;
1057 }
1058 if (!NCONF_get_number(req_conf, dn_sect, buf, &n_min)) {
1059 ERR_clear_error();
1060 n_min = -1;
1061 }
1062 ret = snprintf(buf, sizeof buf, "%s_max", v->name);
1063 if (ret == -1 || ret >= sizeof(buf)) {
1064 BIO_printf(bio_err, "Name '%s' too long for max\n",
1065 v->name);
1066 return 0;
1067 }
1068 if (!NCONF_get_number(req_conf, dn_sect, buf, &n_max)) {
1069 ERR_clear_error();
1070 n_max = -1;
1071 }
1072 if (!add_DN_object(subj, v->value, def, value, nid,
1073 n_min, n_max, chtype, mval))
1074 return 0;
1075 }
1076 if (X509_NAME_entry_count(subj) == 0) {
1077 BIO_printf(bio_err, "error, no objects specified in config file\n");
1078 return 0;
1079 }
1080 if (attribs) {
1081 if ((attr_sk != NULL) && (sk_CONF_VALUE_num(attr_sk) > 0) &&
1082 (!batch)) {
1083 BIO_printf(bio_err,
1084 "\nPlease enter the following 'extra' attributes\n");
1085 BIO_printf(bio_err,
1086 "to be sent with your certificate request\n");
1087 }
1088 i = -1;
1089 start2: for (;;) {
1090 int ret;
1091 i++;
1092 if ((attr_sk == NULL) ||
1093 (sk_CONF_VALUE_num(attr_sk) <= i))
1094 break;
1095
1096 v = sk_CONF_VALUE_value(attr_sk, i);
1097 type = v->name;
1098 if ((nid = OBJ_txt2nid(type)) == NID_undef)
1099 goto start2;
1100 ret = snprintf(buf, sizeof buf, "%s_default", type);
1101 if (ret == -1 || ret >= sizeof(buf)) {
1102 BIO_printf(bio_err, "Name '%s' too long for default\n",
1103 v->name);
1104 return 0;
1105 }
1106 if ((def = NCONF_get_string(req_conf, attr_sect, buf))
1107 == NULL) {
1108 ERR_clear_error();
1109 def = "";
1110 }
1111 ret = snprintf(buf, sizeof buf, "%s_value", type);
1112 if (ret == -1 || ret >= sizeof(buf)) {
1113 BIO_printf(bio_err, "Name '%s' too long for value\n",
1114 v->name);
1115 return 0;
1116 }
1117 if ((value = NCONF_get_string(req_conf, attr_sect, buf))
1118 == NULL) {
1119 ERR_clear_error();
1120 value = NULL;
1121 }
1122 ret = snprintf(buf, sizeof buf, "%s_min", type);
1123 if (ret == -1 || ret >= sizeof(buf)) {
1124 BIO_printf(bio_err, "Name '%s' too long for min\n",
1125 v->name);
1126 return 0;
1127 }
1128 if (!NCONF_get_number(req_conf, attr_sect, buf, &n_min)) {
1129 ERR_clear_error();
1130 n_min = -1;
1131 }
1132 ret = snprintf(buf, sizeof buf, "%s_max", type);
1133 if (ret == -1 || ret >= sizeof(buf)) {
1134 BIO_printf(bio_err, "Name '%s' too long for max\n",
1135 v->name);
1136 return 0;
1137 }
1138 if (!NCONF_get_number(req_conf, attr_sect, buf, &n_max)) {
1139 ERR_clear_error();
1140 n_max = -1;
1141 }
1142 if (!add_attribute_object(req,
1143 v->value, def, value, nid, n_min, n_max, chtype))
1144 return 0;
1145 }
1146 }
1147 } else {
1148 BIO_printf(bio_err, "No template, please set one up.\n");
1149 return 0;
1150 }
1151
1152 return 1;
1153
1154 }
1155
1156 static int
1157 auto_info(X509_REQ * req, STACK_OF(CONF_VALUE) * dn_sk,
1158 STACK_OF(CONF_VALUE) * attr_sk, int attribs, unsigned long chtype)
1159 {
1160 int i;
1161 char *p, *q;
1162 char *type;
1163 CONF_VALUE *v;
1164 X509_NAME *subj;
1165
1166 subj = X509_REQ_get_subject_name(req);
1167
1168 for (i = 0; i < sk_CONF_VALUE_num(dn_sk); i++) {
1169 int mval;
1170 v = sk_CONF_VALUE_value(dn_sk, i);
1171 p = q = NULL;
1172 type = v->name;
1173 /*
1174 * Skip past any leading X. X: X, etc to allow for multiple
1175 * instances
1176 */
1177 for (p = v->name; *p; p++)
1178 if ((*p == ':') || (*p == ',') || (*p == '.')) {
1179 p++;
1180 if (*p)
1181 type = p;
1182 break;
1183 }
1184 if (*p == '+') {
1185 p++;
1186 mval = -1;
1187 } else
1188 mval = 0;
1189 if (!X509_NAME_add_entry_by_txt(subj, type, chtype,
1190 (unsigned char *) v->value, -1, -1, mval))
1191 return 0;
1192
1193 }
1194
1195 if (!X509_NAME_entry_count(subj)) {
1196 BIO_printf(bio_err, "error, no objects specified in config file\n");
1197 return 0;
1198 }
1199 if (attribs) {
1200 for (i = 0; i < sk_CONF_VALUE_num(attr_sk); i++) {
1201 v = sk_CONF_VALUE_value(attr_sk, i);
1202 if (!X509_REQ_add1_attr_by_txt(req, v->name, chtype,
1203 (unsigned char *) v->value, -1))
1204 return 0;
1205 }
1206 }
1207 return 1;
1208 }
1209
1210
1211 static int
1212 add_DN_object(X509_NAME * n, char *text, const char *def, char *value,
1213 int nid, int n_min, int n_max, unsigned long chtype, int mval)
1214 {
1215 int i, ret = 0;
1216 char buf[1024];
1217 start:
1218 if (!batch)
1219 BIO_printf(bio_err, "%s [%s]:", text, def);
1220 (void) BIO_flush(bio_err);
1221 if (value != NULL) {
1222 strlcpy(buf, value, sizeof buf);
1223 strlcat(buf, "\n", sizeof buf);
1224 BIO_printf(bio_err, "%s\n", value);
1225 } else {
1226 buf[0] = '\0';
1227 if (!batch) {
1228 if (!fgets(buf, sizeof buf, stdin))
1229 return 0;
1230 } else {
1231 buf[0] = '\n';
1232 buf[1] = '\0';
1233 }
1234 }
1235
1236 if (buf[0] == '\0')
1237 return (0);
1238 else if (buf[0] == '\n') {
1239 if ((def == NULL) || (def[0] == '\0'))
1240 return (1);
1241 strlcpy(buf, def, sizeof buf);
1242 strlcat(buf, "\n", sizeof buf);
1243 } else if ((buf[0] == '.') && (buf[1] == '\n'))
1244 return (1);
1245
1246 i = strlen(buf);
1247 if (buf[i - 1] != '\n') {
1248 BIO_printf(bio_err, "weird input :-(\n");
1249 return (0);
1250 }
1251 buf[--i] = '\0';
1252 if (!req_check_len(i, n_min, n_max))
1253 goto start;
1254 if (!X509_NAME_add_entry_by_NID(n, nid, chtype,
1255 (unsigned char *) buf, -1, -1, mval))
1256 goto err;
1257 ret = 1;
1258 err:
1259 return (ret);
1260 }
1261
1262 static int
1263 add_attribute_object(X509_REQ * req, char *text, const char *def,
1264 char *value, int nid, int n_min,
1265 int n_max, unsigned long chtype)
1266 {
1267 int i;
1268 static char buf[1024];
1269
1270 start:
1271 if (!batch)
1272 BIO_printf(bio_err, "%s [%s]:", text, def);
1273 (void) BIO_flush(bio_err);
1274 if (value != NULL) {
1275 strlcpy(buf, value, sizeof buf);
1276 strlcat(buf, "\n", sizeof buf);
1277 BIO_printf(bio_err, "%s\n", value);
1278 } else {
1279 buf[0] = '\0';
1280 if (!batch) {
1281 if (!fgets(buf, sizeof buf, stdin))
1282 return 0;
1283 } else {
1284 buf[0] = '\n';
1285 buf[1] = '\0';
1286 }
1287 }
1288
1289 if (buf[0] == '\0')
1290 return (0);
1291 else if (buf[0] == '\n') {
1292 if ((def == NULL) || (def[0] == '\0'))
1293 return (1);
1294 strlcpy(buf, def, sizeof buf);
1295 strlcat(buf, "\n", sizeof buf);
1296 } else if ((buf[0] == '.') && (buf[1] == '\n'))
1297 return (1);
1298
1299 i = strlen(buf);
1300 if (buf[i - 1] != '\n') {
1301 BIO_printf(bio_err, "weird input :-(\n");
1302 return (0);
1303 }
1304 buf[--i] = '\0';
1305 if (!req_check_len(i, n_min, n_max))
1306 goto start;
1307
1308 if (!X509_REQ_add1_attr_by_NID(req, nid, chtype,
1309 (unsigned char *) buf, -1)) {
1310 BIO_printf(bio_err, "Error adding attribute\n");
1311 ERR_print_errors(bio_err);
1312 goto err;
1313 }
1314 return (1);
1315 err:
1316 return (0);
1317 }
1318
1319 static int
1320 req_check_len(int len, int n_min, int n_max)
1321 {
1322 if ((n_min > 0) && (len < n_min)) {
1323 BIO_printf(bio_err, "string is too short, it needs to be at least %d bytes long\n", n_min);
1324 return (0);
1325 }
1326 if ((n_max >= 0) && (len > n_max)) {
1327 BIO_printf(bio_err, "string is too long, it needs to be less than %d bytes long\n", n_max);
1328 return (0);
1329 }
1330 return (1);
1331 }
1332
1333 /* Check if the end of a string matches 'end' */
1334 static int
1335 check_end(const char *str, const char *end)
1336 {
1337 int elen, slen;
1338 const char *tmp;
1339 elen = strlen(end);
1340 slen = strlen(str);
1341 if (elen > slen)
1342 return 1;
1343 tmp = str + slen - elen;
1344 return strcmp(tmp, end);
1345 }
1346
1347 static EVP_PKEY_CTX *
1348 set_keygen_ctx(BIO * err, const char *gstr, int *pkey_type,
1349 long *pkeylen, char **palgnam)
1350 {
1351 EVP_PKEY_CTX *gctx = NULL;
1352 EVP_PKEY *param = NULL;
1353 long keylen = -1;
1354 BIO *pbio = NULL;
1355 const char *paramfile = NULL;
1356 const char *errstr;
1357
1358 if (gstr == NULL) {
1359 *pkey_type = EVP_PKEY_RSA;
1360 keylen = *pkeylen;
1361 } else if (gstr[0] >= '0' && gstr[0] <= '9') {
1362 *pkey_type = EVP_PKEY_RSA;
1363 keylen = strtonum(gstr, 0, LONG_MAX, &errstr);
1364 if (errstr) {
1365 BIO_printf(err, "bad algorithm %s: %s\n", gstr, errstr);
1366 return NULL;
1367 }
1368 *pkeylen = keylen;
1369 } else if (!strncmp(gstr, "param:", 6))
1370 paramfile = gstr + 6;
1371 else {
1372 const char *p = strchr(gstr, ':');
1373 int len;
1374 const EVP_PKEY_ASN1_METHOD *ameth;
1375
1376 if (p)
1377 len = p - gstr;
1378 else
1379 len = strlen(gstr);
1380
1381 ameth = EVP_PKEY_asn1_find_str(NULL, gstr, len);
1382
1383 if (!ameth) {
1384 BIO_printf(err, "Unknown algorithm %.*s\n", len, gstr);
1385 return NULL;
1386 }
1387 EVP_PKEY_asn1_get0_info(NULL, pkey_type, NULL, NULL, NULL,
1388 ameth);
1389 if (*pkey_type == EVP_PKEY_RSA) {
1390 if (p) {
1391 keylen = strtonum(p + 1, 0, LONG_MAX, &errstr);
1392 if (errstr) {
1393 BIO_printf(err, "bad algorithm %s: %s\n",
1394 p + 1, errstr);
1395 return NULL;
1396 }
1397 *pkeylen = keylen;
1398 } else
1399 keylen = *pkeylen;
1400 } else if (p)
1401 paramfile = p + 1;
1402 }
1403
1404 if (paramfile) {
1405 pbio = BIO_new_file(paramfile, "r");
1406 if (!pbio) {
1407 BIO_printf(err, "Can't open parameter file %s\n",
1408 paramfile);
1409 return NULL;
1410 }
1411 param = PEM_read_bio_Parameters(pbio, NULL);
1412
1413 if (!param) {
1414 X509 *x;
1415 (void) BIO_reset(pbio);
1416 x = PEM_read_bio_X509(pbio, NULL, NULL, NULL);
1417 if (x) {
1418 param = X509_get_pubkey(x);
1419 X509_free(x);
1420 }
1421 }
1422 BIO_free(pbio);
1423
1424 if (!param) {
1425 BIO_printf(err, "Error reading parameter file %s\n",
1426 paramfile);
1427 return NULL;
1428 }
1429 if (*pkey_type == -1)
1430 *pkey_type = EVP_PKEY_id(param);
1431 else if (*pkey_type != EVP_PKEY_base_id(param)) {
1432 BIO_printf(err, "Key Type does not match parameters\n");
1433 EVP_PKEY_free(param);
1434 return NULL;
1435 }
1436 }
1437 if (palgnam) {
1438 const EVP_PKEY_ASN1_METHOD *ameth;
1439 const char *anam;
1440 ameth = EVP_PKEY_asn1_find(NULL, *pkey_type);
1441 if (!ameth) {
1442 BIO_puts(err, "Internal error: can't find key algorithm\n");
1443 return NULL;
1444 }
1445 EVP_PKEY_asn1_get0_info(NULL, NULL, NULL, NULL, &anam, ameth);
1446 *palgnam = strdup(anam);
1447 }
1448 if (param) {
1449 gctx = EVP_PKEY_CTX_new(param, NULL);
1450 *pkeylen = EVP_PKEY_bits(param);
1451 EVP_PKEY_free(param);
1452 } else
1453 gctx = EVP_PKEY_CTX_new_id(*pkey_type, NULL);
1454
1455 if (!gctx) {
1456 BIO_puts(err, "Error allocating keygen context\n");
1457 ERR_print_errors(err);
1458 return NULL;
1459 }
1460 if (EVP_PKEY_keygen_init(gctx) <= 0) {
1461 BIO_puts(err, "Error initializing keygen context\n");
1462 ERR_print_errors(err);
1463 return NULL;
1464 }
1465 if ((*pkey_type == EVP_PKEY_RSA) && (keylen != -1)) {
1466 if (EVP_PKEY_CTX_set_rsa_keygen_bits(gctx, keylen) <= 0) {
1467 BIO_puts(err, "Error setting RSA keysize\n");
1468 ERR_print_errors(err);
1469 EVP_PKEY_CTX_free(gctx);
1470 return NULL;
1471 }
1472 }
1473
1474 return gctx;
1475 }
1476
1477 static int
1478 genpkey_cb(EVP_PKEY_CTX * ctx)
1479 {
1480 char c = '*';
1481 BIO *b = EVP_PKEY_CTX_get_app_data(ctx);
1482 int p;
1483 p = EVP_PKEY_CTX_get_keygen_info(ctx, 0);
1484 if (p == 0)
1485 c = '.';
1486 if (p == 1)
1487 c = '+';
1488 if (p == 2)
1489 c = '*';
1490 if (p == 3)
1491 c = '\n';
1492 BIO_write(b, &c, 1);
1493 (void) BIO_flush(b);
1494 return 1;
1495 }
1496
1497 static int
1498 do_sign_init(BIO * err, EVP_MD_CTX * ctx, EVP_PKEY * pkey,
1499 const EVP_MD * md, STACK_OF(OPENSSL_STRING) * sigopts)
1500 {
1501 EVP_PKEY_CTX *pkctx = NULL;
1502 int i;
1503 EVP_MD_CTX_init(ctx);
1504 if (!EVP_DigestSignInit(ctx, &pkctx, md, NULL, pkey))
1505 return 0;
1506 for (i = 0; i < sk_OPENSSL_STRING_num(sigopts); i++) {
1507 char *sigopt = sk_OPENSSL_STRING_value(sigopts, i);
1508 if (pkey_ctrl_string(pkctx, sigopt) <= 0) {
1509 BIO_printf(err, "parameter error \"%s\"\n", sigopt);
1510 ERR_print_errors(bio_err);
1511 return 0;
1512 }
1513 }
1514 return 1;
1515 }
1516
1517 int
1518 do_X509_sign(BIO * err, X509 * x, EVP_PKEY * pkey, const EVP_MD * md,
1519 STACK_OF(OPENSSL_STRING) * sigopts)
1520 {
1521 int rv;
1522 EVP_MD_CTX mctx;
1523 EVP_MD_CTX_init(&mctx);
1524 rv = do_sign_init(err, &mctx, pkey, md, sigopts);
1525 if (rv > 0)
1526 rv = X509_sign_ctx(x, &mctx);
1527 EVP_MD_CTX_cleanup(&mctx);
1528 return rv > 0 ? 1 : 0;
1529 }
1530
1531
1532 int
1533 do_X509_REQ_sign(BIO * err, X509_REQ * x, EVP_PKEY * pkey, const EVP_MD * md,
1534 STACK_OF(OPENSSL_STRING) * sigopts)
1535 {
1536 int rv;
1537 EVP_MD_CTX mctx;
1538 EVP_MD_CTX_init(&mctx);
1539 rv = do_sign_init(err, &mctx, pkey, md, sigopts);
1540 if (rv > 0)
1541 rv = X509_REQ_sign_ctx(x, &mctx);
1542 EVP_MD_CTX_cleanup(&mctx);
1543 return rv > 0 ? 1 : 0;
1544 }
1545
1546
1547
1548 int
1549 do_X509_CRL_sign(BIO * err, X509_CRL * x, EVP_PKEY * pkey, const EVP_MD * md,
1550 STACK_OF(OPENSSL_STRING) * sigopts)
1551 {
1552 int rv;
1553 EVP_MD_CTX mctx;
1554 EVP_MD_CTX_init(&mctx);
1555 rv = do_sign_init(err, &mctx, pkey, md, sigopts);
1556 if (rv > 0)
1557 rv = X509_CRL_sign_ctx(x, &mctx);
1558 EVP_MD_CTX_cleanup(&mctx);
1559 return rv > 0 ? 1 : 0;
1560 }
Unleashed OS