1 /* $OpenBSD: req.c,v 1.23 2022/02/03 17:44:04 tb Exp $ */ 2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) 3 * All rights reserved. 4 * 5 * This package is an SSL implementation written 6 * by Eric Young (eay@cryptsoft.com). 7 * The implementation was written so as to conform with Netscapes SSL. 8 * 9 * This library is free for commercial and non-commercial use as long as 10 * the following conditions are aheared to. The following conditions 11 * apply to all code found in this distribution, be it the RC4, RSA, 12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation 13 * included with this distribution is covered by the same copyright terms 14 * except that the holder is Tim Hudson (tjh@cryptsoft.com). 15 * 16 * Copyright remains Eric Young's, and as such any Copyright notices in 17 * the code are not to be removed. 18 * If this package is used in a product, Eric Young should be given attribution 19 * as the author of the parts of the library used. 20 * This can be in the form of a textual message at program startup or 21 * in documentation (online or textual) provided with the package. 22 * 23 * Redistribution and use in source and binary forms, with or without 24 * modification, are permitted provided that the following conditions 25 * are met: 26 * 1. Redistributions of source code must retain the copyright 27 * notice, this list of conditions and the following disclaimer. 28 * 2. Redistributions in binary form must reproduce the above copyright 29 * notice, this list of conditions and the following disclaimer in the 30 * documentation and/or other materials provided with the distribution. 31 * 3. All advertising materials mentioning features or use of this software 32 * must display the following acknowledgement: 33 * "This product includes cryptographic software written by 34 * Eric Young (eay@cryptsoft.com)" 35 * The word 'cryptographic' can be left out if the rouines from the library 36 * being used are not cryptographic related :-). 37 * 4. If you include any Windows specific code (or a derivative thereof) from 38 * the apps directory (application code) you must include an acknowledgement: 39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" 40 * 41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 51 * SUCH DAMAGE. 52 * 53 * The licence and distribution terms for any publically available version or 54 * derivative of this code cannot be changed. i.e. this code cannot simply be 55 * copied and put under another distribution licence 56 * [including the GNU Public Licence.] 57 */ 58 59 /* Until the key-gen callbacks are modified to use newer prototypes, we allow 60 * deprecated functions for openssl-internal code */ 61 #ifdef OPENSSL_NO_DEPRECATED 62 #undef OPENSSL_NO_DEPRECATED 63 #endif 64 65 #include <ctype.h> 66 #include <limits.h> 67 #include <stdio.h> 68 #include <stdlib.h> 69 #include <string.h> 70 #include <time.h> 71 72 #include "apps.h" 73 74 #include <openssl/asn1.h> 75 #include <openssl/bio.h> 76 #include <openssl/bn.h> 77 #include <openssl/conf.h> 78 #include <openssl/err.h> 79 #include <openssl/evp.h> 80 #include <openssl/objects.h> 81 #include <openssl/pem.h> 82 #include <openssl/x509.h> 83 #include <openssl/x509v3.h> 84 85 #include <openssl/dsa.h> 86 87 #include <openssl/rsa.h> 88 89 #define SECTION "req" 90 91 #define BITS "default_bits" 92 #define KEYFILE "default_keyfile" 93 #define PROMPT "prompt" 94 #define DISTINGUISHED_NAME "distinguished_name" 95 #define ATTRIBUTES "attributes" 96 #define V3_EXTENSIONS "x509_extensions" 97 #define REQ_EXTENSIONS "req_extensions" 98 #define STRING_MASK "string_mask" 99 #define UTF8_IN "utf8" 100 101 #define DEFAULT_KEY_LENGTH 2048 102 #define MIN_KEY_LENGTH 384 103 104 static int make_REQ(X509_REQ * req, EVP_PKEY * pkey, char *dn, int multirdn, 105 int attribs, unsigned long chtype); 106 static int build_subject(X509_REQ * req, char *subj, unsigned long chtype, 107 int multirdn); 108 static int prompt_info(X509_REQ * req, 109 STACK_OF(CONF_VALUE) * dn_sk, char *dn_sect, 110 STACK_OF(CONF_VALUE) * attr_sk, char *attr_sect, int attribs, 111 unsigned long chtype); 112 static int auto_info(X509_REQ * req, STACK_OF(CONF_VALUE) * sk, 113 STACK_OF(CONF_VALUE) * attr, int attribs, 114 unsigned long chtype); 115 static int add_attribute_object(X509_REQ * req, char *text, const char *def, 116 char *value, int nid, int n_min, 117 int n_max, unsigned long chtype); 118 static int add_DN_object(X509_NAME * n, char *text, const char *def, char *value, 119 int nid, int n_min, int n_max, unsigned long chtype, int mval); 120 static int genpkey_cb(EVP_PKEY_CTX * ctx); 121 static int req_check_len(int len, int n_min, int n_max); 122 static int check_end(const char *str, const char *end); 123 static EVP_PKEY_CTX *set_keygen_ctx(BIO * err, const char *gstr, int *pkey_type, 124 long *pkeylen, char **palgnam); 125 static unsigned long ext_name_hash(const OPENSSL_STRING *a); 126 static int ext_name_cmp(const OPENSSL_STRING *a, const OPENSSL_STRING *b); 127 static void exts_cleanup(OPENSSL_STRING *x); 128 static int duplicated(LHASH_OF(OPENSSL_STRING) *addexts, char *kv); 129 static CONF *req_conf = NULL; 130 static CONF *addext_conf = NULL; 131 132 struct { 133 LHASH_OF(OPENSSL_STRING) *addexts; 134 BIO *addext_bio; 135 int batch; 136 unsigned long chtype; 137 int days; 138 const EVP_MD *digest; 139 char *extensions; 140 char *infile; 141 int informat; 142 char *keyalg; 143 char *keyfile; 144 int keyform; 145 char *keyout; 146 int modulus; 147 int multirdn; 148 int newhdr; 149 long newkey; 150 int newreq; 151 unsigned long nmflag; 152 int nodes; 153 int noout; 154 char *outfile; 155 int outformat; 156 char *passargin; 157 char *passargout; 158 STACK_OF(OPENSSL_STRING) *pkeyopts; 159 int pubkey; 160 char *req_exts; 161 unsigned long reqflag; 162 ASN1_INTEGER *serial; 163 STACK_OF(OPENSSL_STRING) *sigopts; 164 char *subj; 165 int subject; 166 char *template; 167 int text; 168 int verbose; 169 int verify; 170 int x509; 171 } req_config; 172 173 static int 174 req_opt_addext(char *arg) 175 { 176 int i; 177 178 if (req_config.addexts == NULL) { 179 req_config.addexts = (LHASH_OF(OPENSSL_STRING) *)lh_new( 180 (LHASH_HASH_FN_TYPE)ext_name_hash, 181 (LHASH_COMP_FN_TYPE)ext_name_cmp); 182 req_config.addext_bio = BIO_new(BIO_s_mem()); 183 if (req_config.addexts == NULL || 184 req_config.addext_bio == NULL) 185 return (1); 186 } 187 i = duplicated(req_config.addexts, arg); 188 if (i == 1) 189 return (1); 190 if (i < 0 || BIO_printf(req_config.addext_bio, "%s\n", arg) < 0) 191 return (1); 192 193 return (0); 194 } 195 196 static int 197 req_opt_days(char *arg) 198 { 199 const char *errstr; 200 201 req_config.days = strtonum(arg, 1, INT_MAX, &errstr); 202 if (errstr != NULL) { 203 BIO_printf(bio_err, "bad -days %s, using 0: %s\n", 204 arg, errstr); 205 req_config.days = 30; 206 } 207 return (0); 208 } 209 210 static int 211 req_opt_digest(int argc, char **argv, int *argsused) 212 { 213 char *name = argv[0]; 214 215 if (*name++ != '-') 216 return (1); 217 218 if ((req_config.digest = EVP_get_digestbyname(name)) == NULL) 219 return (1); 220 221 *argsused = 1; 222 return (0); 223 } 224 225 static int 226 req_opt_newkey(char *arg) 227 { 228 req_config.keyalg = arg; 229 req_config.newreq = 1; 230 return (0); 231 } 232 233 static int 234 req_opt_nameopt(char *arg) 235 { 236 if (!set_name_ex(&req_config.nmflag, arg)) 237 return (1); 238 return (0); 239 } 240 241 static int 242 req_opt_pkeyopt(char *arg) 243 { 244 if (req_config.pkeyopts == NULL) 245 req_config.pkeyopts = sk_OPENSSL_STRING_new_null(); 246 if (req_config.pkeyopts == NULL) 247 return (1); 248 if (!sk_OPENSSL_STRING_push(req_config.pkeyopts, arg)) 249 return (1); 250 return (0); 251 } 252 253 static int 254 req_opt_reqopt(char *arg) 255 { 256 if (!set_cert_ex(&req_config.reqflag, arg)) 257 return (1); 258 return (0); 259 } 260 261 static int 262 req_opt_set_serial(char *arg) 263 { 264 req_config.serial = s2i_ASN1_INTEGER(NULL, arg); 265 if (req_config.serial == NULL) 266 return (1); 267 return (0); 268 } 269 270 static int 271 req_opt_sigopt(char *arg) 272 { 273 if (req_config.sigopts == NULL) 274 req_config.sigopts = sk_OPENSSL_STRING_new_null(); 275 if (req_config.sigopts == NULL) 276 return (1); 277 if (!sk_OPENSSL_STRING_push(req_config.sigopts, arg)) 278 return (1); 279 return (0); 280 } 281 282 static int 283 req_opt_utf8(void) 284 { 285 req_config.chtype = MBSTRING_UTF8; 286 return (0); 287 } 288 289 static const struct option req_options[] = { 290 { 291 .name = "addext", 292 .argname = "key=value", 293 .desc = "Additional certificate extension (may be repeated)", 294 .type = OPTION_ARG_FUNC, 295 .opt.argfunc = req_opt_addext, 296 }, 297 { 298 .name = "batch", 299 .desc = "Operate in batch mode", 300 .type = OPTION_FLAG, 301 .opt.flag = &req_config.batch, 302 }, 303 { 304 .name = "config", 305 .argname = "file", 306 .desc = "Configuration file to use as request template", 307 .type = OPTION_ARG, 308 .opt.arg = &req_config.template, 309 }, 310 { 311 .name = "days", 312 .argname = "number", 313 .desc = "Number of days generated certificate is valid for", 314 .type = OPTION_ARG_FUNC, 315 .opt.argfunc = req_opt_days, 316 }, 317 { 318 .name = "extensions", 319 .argname = "section", 320 .desc = "Config section to use for certificate extensions", 321 .type = OPTION_ARG, 322 .opt.arg = &req_config.extensions, 323 }, 324 { 325 .name = "in", 326 .argname = "file", 327 .desc = "Input file (default stdin)", 328 .type = OPTION_ARG, 329 .opt.arg = &req_config.infile, 330 }, 331 { 332 .name = "inform", 333 .argname = "format", 334 .desc = "Input format (DER or PEM (default))", 335 .type = OPTION_ARG_FORMAT, 336 .opt.value = &req_config.informat, 337 }, 338 { 339 .name = "key", 340 .argname = "file", 341 .desc = "Private key file", 342 .type = OPTION_ARG, 343 .opt.arg = &req_config.keyfile, 344 }, 345 { 346 .name = "keyform", 347 .argname = "format", 348 .desc = "Private key format (DER or PEM (default))", 349 .type = OPTION_ARG_FORMAT, 350 .opt.value = &req_config.keyform, 351 }, 352 { 353 .name = "keyout", 354 .argname = "file", 355 .desc = "Private key output file", 356 .type = OPTION_ARG, 357 .opt.arg = &req_config.keyout, 358 }, 359 { 360 .name = "modulus", 361 .desc = "Print RSA modulus", 362 .type = OPTION_FLAG, 363 .opt.flag = &req_config.modulus, 364 }, 365 { 366 .name = "multivalue-rdn", 367 .desc = "Enable support for multivalued RDNs", 368 .type = OPTION_FLAG, 369 .opt.flag = &req_config.multirdn, 370 }, 371 { 372 .name = "nameopt", 373 .argname = "arg", 374 .desc = "Certificate name options", 375 .type = OPTION_ARG_FUNC, 376 .opt.argfunc = req_opt_nameopt, 377 }, 378 { 379 .name = "new", 380 .desc = "New request", 381 .type = OPTION_FLAG, 382 .opt.flag = &req_config.newreq, 383 }, 384 { 385 .name = "newhdr", 386 .desc = "Include 'NEW' in header lines", 387 .type = OPTION_FLAG, 388 .opt.flag = &req_config.newhdr, 389 }, 390 { 391 .name = "newkey", 392 .argname = "param", 393 .desc = "Generate a new key using given parameters", 394 .type = OPTION_ARG_FUNC, 395 .opt.argfunc = req_opt_newkey, 396 }, 397 { 398 .name = "nodes", 399 .desc = "Do not encrypt output private key", 400 .type = OPTION_FLAG, 401 .opt.flag = &req_config.nodes, 402 }, 403 { 404 .name = "noout", 405 .desc = "Do not output request", 406 .type = OPTION_FLAG, 407 .opt.flag = &req_config.noout, 408 }, 409 { 410 .name = "out", 411 .argname = "file", 412 .desc = "Output file (default stdout)", 413 .type = OPTION_ARG, 414 .opt.arg = &req_config.outfile, 415 }, 416 { 417 .name = "outform", 418 .argname = "format", 419 .desc = "Output format (DER or PEM (default))", 420 .type = OPTION_ARG_FORMAT, 421 .opt.value = &req_config.outformat, 422 }, 423 { 424 .name = "passin", 425 .argname = "source", 426 .desc = "Private key input password source", 427 .type = OPTION_ARG, 428 .opt.arg = &req_config.passargin, 429 }, 430 { 431 .name = "passout", 432 .argname = "source", 433 .desc = "Private key output password source", 434 .type = OPTION_ARG, 435 .opt.arg = &req_config.passargout, 436 }, 437 { 438 .name = "pkeyopt", 439 .argname = "opt:val", 440 .desc = "Set the public key algorithm option opt to val", 441 .type = OPTION_ARG_FUNC, 442 .opt.argfunc = req_opt_pkeyopt, 443 }, 444 { 445 .name = "pubkey", 446 .desc = "Output the public key", 447 .type = OPTION_FLAG, 448 .opt.flag = &req_config.pubkey, 449 }, 450 { 451 .name = "reqexts", 452 .argname = "section", 453 .desc = "Config section to use for request extensions", 454 .type = OPTION_ARG, 455 .opt.arg = &req_config.req_exts, 456 }, 457 { 458 .name = "reqopt", 459 .argname = "option", 460 .desc = "Request text options", 461 .type = OPTION_ARG_FUNC, 462 .opt.argfunc = req_opt_reqopt, 463 }, 464 { 465 .name = "set_serial", 466 .argname = "serial", 467 .desc = "Serial number to use for generated certificate", 468 .type = OPTION_ARG_FUNC, 469 .opt.argfunc = req_opt_set_serial, 470 }, 471 { 472 .name = "sigopt", 473 .argname = "name:val", 474 .desc = "Signature options", 475 .type = OPTION_ARG_FUNC, 476 .opt.argfunc = req_opt_sigopt, 477 }, 478 { 479 .name = "subj", 480 .argname = "name", 481 .desc = "Set or modify the request subject", 482 .type = OPTION_ARG, 483 .opt.arg = &req_config.subj, 484 }, 485 { 486 .name = "subject", 487 .desc = "Output the subject of the request", 488 .type = OPTION_FLAG, 489 .opt.flag = &req_config.subject, 490 }, 491 { 492 .name = "text", 493 .desc = "Print request in text form", 494 .type = OPTION_FLAG, 495 .opt.flag = &req_config.text, 496 }, 497 { 498 .name = "utf8", 499 .desc = "Input characters are in UTF-8 (default ASCII)", 500 .type = OPTION_FUNC, 501 .opt.func = req_opt_utf8, 502 }, 503 { 504 .name = "verbose", 505 .desc = "Verbose", 506 .type = OPTION_FLAG, 507 .opt.flag = &req_config.verbose, 508 }, 509 { 510 .name = "verify", 511 .desc = "Verify signature on request", 512 .type = OPTION_FLAG, 513 .opt.flag = &req_config.verify, 514 }, 515 { 516 .name = "x509", 517 .desc = "Output an X.509 structure instead of a certificate request", 518 .type = OPTION_FLAG, 519 .opt.flag = &req_config.x509, 520 }, 521 { 522 .name = NULL, 523 .desc = "", 524 .type = OPTION_ARGV_FUNC, 525 .opt.argvfunc = req_opt_digest, 526 }, 527 { NULL }, 528 }; 529 530 static void 531 req_usage(void) 532 { 533 fprintf(stderr, 534 "usage: req [-addext ext] [-batch] [-config file]\n" 535 " [-days n] [-extensions section] [-in file]\n" 536 " [-inform der | pem] [-key keyfile] [-keyform der | pem]\n" 537 " [-keyout file] [-md4 | -md5 | -sha1] [-modulus]\n" 538 " [-multivalue-rdn] [-nameopt option] [-new] [-newhdr]\n" 539 " [-newkey arg] [-nodes] [-noout]\n" 540 " [-out file] [-outform der | pem] [-passin arg]\n" 541 " [-passout arg] [-pkeyopt opt:value] [-pubkey]\n" 542 " [-reqexts section] [-reqopt option] [-set_serial n]\n" 543 " [-sigopt nm:v] [-subj arg] [-subject] [-text] [-utf8]\n" 544 " [-verbose] [-verify] [-x509]\n\n"); 545 546 options_usage(req_options); 547 fprintf(stderr, "\n"); 548 } 549 550 int 551 req_main(int argc, char **argv) 552 { 553 int ex = 1; 554 X509 *x509ss = NULL; 555 X509_REQ *req = NULL; 556 EVP_PKEY_CTX *genctx = NULL; 557 char *keyalgstr = NULL; 558 const EVP_CIPHER *cipher = NULL; 559 EVP_PKEY *pkey = NULL; 560 int i = 0, pkey_type = -1; 561 BIO *in = NULL, *out = NULL; 562 char *passin = NULL, *passout = NULL; 563 const EVP_MD *md_alg = NULL; 564 char *p; 565 566 if (single_execution) { 567 if (pledge("stdio cpath wpath rpath tty", NULL) == -1) { 568 perror("pledge"); 569 exit(1); 570 } 571 } 572 573 memset(&req_config, 0, sizeof(req_config)); 574 575 req_config.chtype = MBSTRING_ASC; 576 req_config.days = 30; 577 req_config.digest = EVP_sha256(); 578 req_config.newkey = -1; 579 req_config.informat = FORMAT_PEM; 580 req_config.keyform = FORMAT_PEM; 581 req_config.outformat = FORMAT_PEM; 582 583 if (options_parse(argc, argv, req_options, NULL, NULL) != 0) { 584 req_usage(); 585 return (1); 586 } 587 588 req_conf = NULL; 589 cipher = EVP_aes_256_cbc(); 590 591 if (!app_passwd(bio_err, req_config.passargin, req_config.passargout, &passin, &passout)) { 592 BIO_printf(bio_err, "Error getting passwords\n"); 593 goto end; 594 } 595 if (req_config.template != NULL) { 596 long errline = -1; 597 598 if (req_config.verbose) 599 BIO_printf(bio_err, "Using configuration from %s\n", req_config.template); 600 if ((req_conf = NCONF_new(NULL)) == NULL) 601 goto end; 602 if(!NCONF_load(req_conf, req_config.template, &errline)) { 603 BIO_printf(bio_err, "error on line %ld of %s\n", errline, req_config.template); 604 goto end; 605 } 606 } else { 607 req_conf = config; 608 609 if (req_conf == NULL) { 610 BIO_printf(bio_err, "Unable to load config info from %s\n", default_config_file); 611 if (req_config.newreq) 612 goto end; 613 } else if (req_config.verbose) 614 BIO_printf(bio_err, "Using configuration from %s\n", 615 default_config_file); 616 } 617 618 if (req_config.addext_bio != NULL) { 619 long errline = -1; 620 if (req_config.verbose) 621 BIO_printf(bio_err, 622 "Using additional configuration from command line\n"); 623 if ((addext_conf = NCONF_new(NULL)) == NULL) 624 goto end; 625 if (!NCONF_load_bio(addext_conf, req_config.addext_bio, &errline)) { 626 BIO_printf(bio_err, 627 "req: Error on line %ld of config input\n", 628 errline); 629 goto end; 630 } 631 } 632 633 if (req_conf != NULL) { 634 if (!load_config(bio_err, req_conf)) 635 goto end; 636 p = NCONF_get_string(req_conf, NULL, "oid_file"); 637 if (p == NULL) 638 ERR_clear_error(); 639 if (p != NULL) { 640 BIO *oid_bio; 641 642 oid_bio = BIO_new_file(p, "r"); 643 if (oid_bio == NULL) { 644 /* 645 BIO_printf(bio_err,"problems opening %s for extra oid's\n",p); 646 ERR_print_errors(bio_err); 647 */ 648 } else { 649 OBJ_create_objects(oid_bio); 650 BIO_free(oid_bio); 651 } 652 } 653 } 654 if (!add_oid_section(bio_err, req_conf)) 655 goto end; 656 657 if (md_alg == NULL) { 658 p = NCONF_get_string(req_conf, SECTION, "default_md"); 659 if (p == NULL) 660 ERR_clear_error(); 661 if (p != NULL) { 662 if ((md_alg = EVP_get_digestbyname(p)) != NULL) 663 req_config.digest = md_alg; 664 } 665 } 666 if (!req_config.extensions) { 667 req_config.extensions = NCONF_get_string(req_conf, SECTION, V3_EXTENSIONS); 668 if (!req_config.extensions) 669 ERR_clear_error(); 670 } 671 if (req_config.extensions) { 672 /* Check syntax of file */ 673 X509V3_CTX ctx; 674 X509V3_set_ctx_test(&ctx); 675 X509V3_set_nconf(&ctx, req_conf); 676 if (!X509V3_EXT_add_nconf(req_conf, &ctx, req_config.extensions, NULL)) { 677 BIO_printf(bio_err, 678 "Error Loading extension section %s\n", req_config.extensions); 679 goto end; 680 } 681 } 682 if (addext_conf != NULL) { 683 /* Check syntax of command line extensions */ 684 X509V3_CTX ctx; 685 X509V3_set_ctx_test(&ctx); 686 X509V3_set_nconf(&ctx, addext_conf); 687 if (!X509V3_EXT_add_nconf(addext_conf, &ctx, "default", NULL)) { 688 BIO_printf(bio_err, 689 "Error Loading command line extensions\n"); 690 goto end; 691 } 692 } 693 if (!passin) { 694 passin = NCONF_get_string(req_conf, SECTION, "input_password"); 695 if (!passin) 696 ERR_clear_error(); 697 } 698 if (!passout) { 699 passout = NCONF_get_string(req_conf, SECTION, "output_password"); 700 if (!passout) 701 ERR_clear_error(); 702 } 703 p = NCONF_get_string(req_conf, SECTION, STRING_MASK); 704 if (!p) 705 ERR_clear_error(); 706 707 if (p && !ASN1_STRING_set_default_mask_asc(p)) { 708 BIO_printf(bio_err, "Invalid global string mask setting %s\n", p); 709 goto end; 710 } 711 if (req_config.chtype != MBSTRING_UTF8) { 712 p = NCONF_get_string(req_conf, SECTION, UTF8_IN); 713 if (!p) 714 ERR_clear_error(); 715 else if (!strcmp(p, "yes")) 716 req_config.chtype = MBSTRING_UTF8; 717 } 718 if (!req_config.req_exts) { 719 req_config.req_exts = NCONF_get_string(req_conf, SECTION, REQ_EXTENSIONS); 720 if (!req_config.req_exts) 721 ERR_clear_error(); 722 } 723 if (req_config.req_exts) { 724 /* Check syntax of file */ 725 X509V3_CTX ctx; 726 X509V3_set_ctx_test(&ctx); 727 X509V3_set_nconf(&ctx, req_conf); 728 if (!X509V3_EXT_add_nconf(req_conf, &ctx, req_config.req_exts, NULL)) { 729 BIO_printf(bio_err, 730 "Error Loading request extension section %s\n", 731 req_config.req_exts); 732 goto end; 733 } 734 } 735 in = BIO_new(BIO_s_file()); 736 out = BIO_new(BIO_s_file()); 737 if ((in == NULL) || (out == NULL)) 738 goto end; 739 740 if (req_config.keyfile != NULL) { 741 pkey = load_key(bio_err, req_config.keyfile, req_config.keyform, 0, passin, 742 "Private Key"); 743 if (!pkey) { 744 /* 745 * load_key() has already printed an appropriate 746 * message 747 */ 748 goto end; 749 } 750 } 751 if (req_config.newreq && (pkey == NULL)) { 752 if (!NCONF_get_number(req_conf, SECTION, BITS, &req_config.newkey)) { 753 req_config.newkey = DEFAULT_KEY_LENGTH; 754 } 755 if (req_config.keyalg) { 756 genctx = set_keygen_ctx(bio_err, req_config.keyalg, &pkey_type, &req_config.newkey, 757 &keyalgstr); 758 if (!genctx) 759 goto end; 760 } 761 if (req_config.newkey < MIN_KEY_LENGTH && (pkey_type == EVP_PKEY_RSA || pkey_type == EVP_PKEY_DSA)) { 762 BIO_printf(bio_err, "private key length is too short,\n"); 763 BIO_printf(bio_err, "it needs to be at least %d bits, not %ld\n", MIN_KEY_LENGTH, req_config.newkey); 764 goto end; 765 } 766 if (!genctx) { 767 genctx = set_keygen_ctx(bio_err, NULL, &pkey_type, &req_config.newkey, 768 &keyalgstr); 769 if (!genctx) 770 goto end; 771 } 772 if (req_config.pkeyopts) { 773 char *genopt; 774 for (i = 0; i < sk_OPENSSL_STRING_num(req_config.pkeyopts); i++) { 775 genopt = sk_OPENSSL_STRING_value(req_config.pkeyopts, i); 776 if (pkey_ctrl_string(genctx, genopt) <= 0) { 777 BIO_printf(bio_err, 778 "parameter error \"%s\"\n", 779 genopt); 780 ERR_print_errors(bio_err); 781 goto end; 782 } 783 } 784 } 785 BIO_printf(bio_err, "Generating a %ld bit %s private key\n", 786 req_config.newkey, keyalgstr); 787 788 EVP_PKEY_CTX_set_cb(genctx, genpkey_cb); 789 EVP_PKEY_CTX_set_app_data(genctx, bio_err); 790 791 if (EVP_PKEY_keygen(genctx, &pkey) <= 0) { 792 BIO_puts(bio_err, "Error Generating Key\n"); 793 goto end; 794 } 795 EVP_PKEY_CTX_free(genctx); 796 genctx = NULL; 797 798 if (req_config.keyout == NULL) { 799 req_config.keyout = NCONF_get_string(req_conf, SECTION, KEYFILE); 800 if (req_config.keyout == NULL) 801 ERR_clear_error(); 802 } 803 if (req_config.keyout == NULL) { 804 BIO_printf(bio_err, "writing new private key to stdout\n"); 805 BIO_set_fp(out, stdout, BIO_NOCLOSE); 806 } else { 807 BIO_printf(bio_err, "writing new private key to '%s'\n", req_config.keyout); 808 if (BIO_write_filename(out, req_config.keyout) <= 0) { 809 perror(req_config.keyout); 810 goto end; 811 } 812 } 813 814 p = NCONF_get_string(req_conf, SECTION, "encrypt_rsa_key"); 815 if (p == NULL) { 816 ERR_clear_error(); 817 p = NCONF_get_string(req_conf, SECTION, "encrypt_key"); 818 if (p == NULL) 819 ERR_clear_error(); 820 } 821 if ((p != NULL) && (strcmp(p, "no") == 0)) 822 cipher = NULL; 823 if (req_config.nodes) 824 cipher = NULL; 825 826 i = 0; 827 loop: 828 if (!PEM_write_bio_PrivateKey(out, pkey, cipher, 829 NULL, 0, NULL, passout)) { 830 if ((ERR_GET_REASON(ERR_peek_error()) == 831 PEM_R_PROBLEMS_GETTING_PASSWORD) && (i < 3)) { 832 ERR_clear_error(); 833 i++; 834 goto loop; 835 } 836 goto end; 837 } 838 BIO_printf(bio_err, "-----\n"); 839 } 840 if (!req_config.newreq) { 841 if (req_config.infile == NULL) 842 BIO_set_fp(in, stdin, BIO_NOCLOSE); 843 else { 844 if (BIO_read_filename(in, req_config.infile) <= 0) { 845 perror(req_config.infile); 846 goto end; 847 } 848 } 849 850 if (req_config.informat == FORMAT_ASN1) 851 req = d2i_X509_REQ_bio(in, NULL); 852 else if (req_config.informat == FORMAT_PEM) 853 req = PEM_read_bio_X509_REQ(in, NULL, NULL, NULL); 854 else { 855 BIO_printf(bio_err, "bad input format specified for X509 request\n"); 856 goto end; 857 } 858 if (req == NULL) { 859 BIO_printf(bio_err, "unable to load X509 request\n"); 860 goto end; 861 } 862 } 863 if (req_config.newreq || req_config.x509) { 864 if (pkey == NULL) { 865 BIO_printf(bio_err, "you need to specify a private key\n"); 866 goto end; 867 } 868 if (req == NULL) { 869 req = X509_REQ_new(); 870 if (req == NULL) { 871 goto end; 872 } 873 i = make_REQ(req, pkey, req_config.subj, req_config.multirdn, !req_config.x509, req_config.chtype); 874 req_config.subj = NULL; /* done processing '-subj' option */ 875 if (!i) { 876 BIO_printf(bio_err, "problems making Certificate Request\n"); 877 goto end; 878 } 879 } 880 if (req_config.x509) { 881 EVP_PKEY *tmppkey; 882 883 X509V3_CTX ext_ctx; 884 if ((x509ss = X509_new()) == NULL) 885 goto end; 886 887 /* Set version to V3 */ 888 if ((req_config.extensions != NULL || addext_conf != NULL) && 889 !X509_set_version(x509ss, 2)) 890 goto end; 891 if (req_config.serial) { 892 if (!X509_set_serialNumber(x509ss, req_config.serial)) 893 goto end; 894 } else { 895 if (!rand_serial(NULL, 896 X509_get_serialNumber(x509ss))) 897 goto end; 898 } 899 900 if (!X509_set_issuer_name(x509ss, X509_REQ_get_subject_name(req))) 901 goto end; 902 if (!X509_gmtime_adj(X509_get_notBefore(x509ss), 0)) 903 goto end; 904 if (!X509_time_adj_ex(X509_get_notAfter(x509ss), req_config.days, 0, NULL)) 905 goto end; 906 if (!X509_set_subject_name(x509ss, X509_REQ_get_subject_name(req))) 907 goto end; 908 if ((tmppkey = X509_REQ_get0_pubkey(req)) == NULL) 909 goto end; 910 if (!X509_set_pubkey(x509ss, tmppkey)) 911 goto end; 912 913 /* Set up V3 context struct */ 914 915 X509V3_set_ctx(&ext_ctx, x509ss, x509ss, NULL, NULL, 0); 916 X509V3_set_nconf(&ext_ctx, req_conf); 917 918 /* Add extensions */ 919 if (req_config.extensions && !X509V3_EXT_add_nconf(req_conf, 920 &ext_ctx, req_config.extensions, x509ss)) { 921 BIO_printf(bio_err, 922 "Error Loading extension section %s\n", 923 req_config.extensions); 924 goto end; 925 } 926 if (addext_conf != NULL && 927 !X509V3_EXT_add_nconf(addext_conf, &ext_ctx, 928 "default", x509ss)) { 929 BIO_printf(bio_err, 930 "Error Loading command line extensions\n"); 931 goto end; 932 } 933 i = do_X509_sign(bio_err, x509ss, pkey, req_config.digest, req_config.sigopts); 934 if (!i) { 935 ERR_print_errors(bio_err); 936 goto end; 937 } 938 } else { 939 X509V3_CTX ext_ctx; 940 941 /* Set up V3 context struct */ 942 943 X509V3_set_ctx(&ext_ctx, NULL, NULL, req, NULL, 0); 944 X509V3_set_nconf(&ext_ctx, req_conf); 945 946 /* Add extensions */ 947 if (req_config.req_exts && !X509V3_EXT_REQ_add_nconf(req_conf, 948 &ext_ctx, req_config.req_exts, req)) { 949 BIO_printf(bio_err, 950 "Error Loading extension section %s\n", 951 req_config.req_exts); 952 goto end; 953 } 954 if (addext_conf != NULL && 955 !X509V3_EXT_REQ_add_nconf(addext_conf, &ext_ctx, 956 "default", req)) { 957 BIO_printf(bio_err, 958 "Error Loading command line extensions\n"); 959 goto end; 960 } 961 i = do_X509_REQ_sign(bio_err, req, pkey, req_config.digest, req_config.sigopts); 962 if (!i) { 963 ERR_print_errors(bio_err); 964 goto end; 965 } 966 } 967 } 968 if (req_config.subj && req_config.x509) { 969 BIO_printf(bio_err, "Cannot modify certificate subject\n"); 970 goto end; 971 } 972 if (req_config.subj && !req_config.x509) { 973 if (req_config.verbose) { 974 BIO_printf(bio_err, "Modifying Request's Subject\n"); 975 print_name(bio_err, "old subject=", X509_REQ_get_subject_name(req), req_config.nmflag); 976 } 977 if (build_subject(req, req_config.subj, req_config.chtype, req_config.multirdn) == 0) { 978 BIO_printf(bio_err, "ERROR: cannot modify subject\n"); 979 ex = 1; 980 goto end; 981 } 982 983 if (req_config.verbose) { 984 print_name(bio_err, "new subject=", X509_REQ_get_subject_name(req), req_config.nmflag); 985 } 986 } 987 if (req_config.verify && !req_config.x509) { 988 EVP_PKEY *pubkey = pkey; 989 990 if (pubkey == NULL) 991 pubkey = X509_REQ_get0_pubkey(req); 992 if (pubkey == NULL) 993 goto end; 994 i = X509_REQ_verify(req, pubkey); 995 if (i < 0) { 996 goto end; 997 } else if (i == 0) { 998 BIO_printf(bio_err, "verify failure\n"); 999 ERR_print_errors(bio_err); 1000 } else /* if (i > 0) */ 1001 BIO_printf(bio_err, "verify OK\n"); 1002 } 1003 if (req_config.noout && !req_config.text && !req_config.modulus && !req_config.subject && !req_config.pubkey) { 1004 ex = 0; 1005 goto end; 1006 } 1007 if (req_config.outfile == NULL) { 1008 BIO_set_fp(out, stdout, BIO_NOCLOSE); 1009 } else { 1010 if ((req_config.keyout != NULL) && (strcmp(req_config.outfile, req_config.keyout) == 0)) 1011 i = (int) BIO_append_filename(out, req_config.outfile); 1012 else 1013 i = (int) BIO_write_filename(out, req_config.outfile); 1014 if (!i) { 1015 perror(req_config.outfile); 1016 goto end; 1017 } 1018 } 1019 1020 if (req_config.pubkey) { 1021 EVP_PKEY *tpubkey; 1022 1023 if ((tpubkey = X509_REQ_get0_pubkey(req)) == NULL) { 1024 BIO_printf(bio_err, "Error getting public key\n"); 1025 ERR_print_errors(bio_err); 1026 goto end; 1027 } 1028 PEM_write_bio_PUBKEY(out, tpubkey); 1029 } 1030 if (req_config.text) { 1031 if (req_config.x509) 1032 X509_print_ex(out, x509ss, req_config.nmflag, req_config.reqflag); 1033 else 1034 X509_REQ_print_ex(out, req, req_config.nmflag, req_config.reqflag); 1035 } 1036 if (req_config.subject) { 1037 if (req_config.x509) 1038 print_name(out, "subject=", X509_get_subject_name(x509ss), req_config.nmflag); 1039 else 1040 print_name(out, "subject=", X509_REQ_get_subject_name(req), req_config.nmflag); 1041 } 1042 if (req_config.modulus) { 1043 EVP_PKEY *tpubkey; 1044 1045 if (req_config.x509) 1046 tpubkey = X509_get0_pubkey(x509ss); 1047 else 1048 tpubkey = X509_REQ_get0_pubkey(req); 1049 if (tpubkey == NULL) { 1050 fprintf(stdout, "Modulus=unavailable\n"); 1051 goto end; 1052 } 1053 fprintf(stdout, "Modulus="); 1054 if (EVP_PKEY_base_id(tpubkey) == EVP_PKEY_RSA) { 1055 const BIGNUM *n = NULL; 1056 1057 RSA_get0_key(EVP_PKEY_get0_RSA(tpubkey), &n, NULL, NULL); 1058 1059 BN_print(out, n); 1060 } else 1061 fprintf(stdout, "Wrong Algorithm type"); 1062 fprintf(stdout, "\n"); 1063 } 1064 if (!req_config.noout && !req_config.x509) { 1065 if (req_config.outformat == FORMAT_ASN1) 1066 i = i2d_X509_REQ_bio(out, req); 1067 else if (req_config.outformat == FORMAT_PEM) { 1068 if (req_config.newhdr) 1069 i = PEM_write_bio_X509_REQ_NEW(out, req); 1070 else 1071 i = PEM_write_bio_X509_REQ(out, req); 1072 } else { 1073 BIO_printf(bio_err, "bad output format specified for outfile\n"); 1074 goto end; 1075 } 1076 if (!i) { 1077 BIO_printf(bio_err, "unable to write X509 request\n"); 1078 goto end; 1079 } 1080 } 1081 if (!req_config.noout && req_config.x509 && (x509ss != NULL)) { 1082 if (req_config.outformat == FORMAT_ASN1) 1083 i = i2d_X509_bio(out, x509ss); 1084 else if (req_config.outformat == FORMAT_PEM) 1085 i = PEM_write_bio_X509(out, x509ss); 1086 else { 1087 BIO_printf(bio_err, "bad output format specified for outfile\n"); 1088 goto end; 1089 } 1090 if (!i) { 1091 BIO_printf(bio_err, "unable to write X509 certificate\n"); 1092 goto end; 1093 } 1094 } 1095 ex = 0; 1096 end: 1097 if (ex) { 1098 ERR_print_errors(bio_err); 1099 } 1100 if ((req_conf != NULL) && (req_conf != config)) 1101 NCONF_free(req_conf); 1102 NCONF_free(addext_conf); 1103 BIO_free(req_config.addext_bio); 1104 BIO_free(in); 1105 BIO_free_all(out); 1106 EVP_PKEY_free(pkey); 1107 if (genctx) 1108 EVP_PKEY_CTX_free(genctx); 1109 if (req_config.pkeyopts) 1110 sk_OPENSSL_STRING_free(req_config.pkeyopts); 1111 if (req_config.sigopts) 1112 sk_OPENSSL_STRING_free(req_config.sigopts); 1113 lh_OPENSSL_STRING_doall(req_config.addexts, (LHASH_DOALL_FN_TYPE)exts_cleanup); 1114 lh_OPENSSL_STRING_free(req_config.addexts); 1115 free(keyalgstr); 1116 X509_REQ_free(req); 1117 X509_free(x509ss); 1118 ASN1_INTEGER_free(req_config.serial); 1119 if (req_config.passargin && passin) 1120 free(passin); 1121 if (req_config.passargout && passout) 1122 free(passout); 1123 OBJ_cleanup(); 1124 1125 return (ex); 1126 } 1127 1128 static int 1129 make_REQ(X509_REQ * req, EVP_PKEY * pkey, char *subj, int multirdn, 1130 int attribs, unsigned long chtype) 1131 { 1132 int ret = 0, i; 1133 char no_prompt = 0; 1134 STACK_OF(CONF_VALUE) * dn_sk, *attr_sk = NULL; 1135 char *tmp, *dn_sect, *attr_sect; 1136 1137 tmp = NCONF_get_string(req_conf, SECTION, PROMPT); 1138 if (tmp == NULL) 1139 ERR_clear_error(); 1140 if ((tmp != NULL) && !strcmp(tmp, "no")) 1141 no_prompt = 1; 1142 1143 dn_sect = NCONF_get_string(req_conf, SECTION, DISTINGUISHED_NAME); 1144 if (dn_sect == NULL) { 1145 BIO_printf(bio_err, "unable to find '%s' in config\n", 1146 DISTINGUISHED_NAME); 1147 goto err; 1148 } 1149 dn_sk = NCONF_get_section(req_conf, dn_sect); 1150 if (dn_sk == NULL) { 1151 BIO_printf(bio_err, "unable to get '%s' section\n", dn_sect); 1152 goto err; 1153 } 1154 attr_sect = NCONF_get_string(req_conf, SECTION, ATTRIBUTES); 1155 if (attr_sect == NULL) { 1156 ERR_clear_error(); 1157 attr_sk = NULL; 1158 } else { 1159 attr_sk = NCONF_get_section(req_conf, attr_sect); 1160 if (attr_sk == NULL) { 1161 BIO_printf(bio_err, "unable to get '%s' section\n", attr_sect); 1162 goto err; 1163 } 1164 } 1165 1166 /* setup version number */ 1167 if (!X509_REQ_set_version(req, 0L)) 1168 goto err; /* version 1 */ 1169 1170 if (no_prompt) 1171 i = auto_info(req, dn_sk, attr_sk, attribs, chtype); 1172 else { 1173 if (subj) 1174 i = build_subject(req, subj, chtype, multirdn); 1175 else 1176 i = prompt_info(req, dn_sk, dn_sect, attr_sk, attr_sect, attribs, chtype); 1177 } 1178 if (!i) 1179 goto err; 1180 1181 if (!X509_REQ_set_pubkey(req, pkey)) 1182 goto err; 1183 1184 ret = 1; 1185 err: 1186 return (ret); 1187 } 1188 1189 /* 1190 * subject is expected to be in the format /type0=value0/type1=value1/type2=... 1191 * where characters may be escaped by \ 1192 */ 1193 static int 1194 build_subject(X509_REQ * req, char *subject, unsigned long chtype, int multirdn) 1195 { 1196 X509_NAME *n; 1197 1198 if (!(n = parse_name(subject, chtype, multirdn))) 1199 return 0; 1200 1201 if (!X509_REQ_set_subject_name(req, n)) { 1202 X509_NAME_free(n); 1203 return 0; 1204 } 1205 X509_NAME_free(n); 1206 return 1; 1207 } 1208 1209 1210 static int 1211 prompt_info(X509_REQ * req, 1212 STACK_OF(CONF_VALUE) * dn_sk, char *dn_sect, 1213 STACK_OF(CONF_VALUE) * attr_sk, char *attr_sect, int attribs, 1214 unsigned long chtype) 1215 { 1216 int i; 1217 char *p, *q; 1218 char buf[100]; 1219 int nid, mval; 1220 long n_min, n_max; 1221 char *type, *value; 1222 const char *def; 1223 CONF_VALUE *v; 1224 X509_NAME *subj; 1225 subj = X509_REQ_get_subject_name(req); 1226 1227 if (!req_config.batch) { 1228 BIO_printf(bio_err, "You are about to be asked to enter information that will be incorporated\n"); 1229 BIO_printf(bio_err, "into your certificate request.\n"); 1230 BIO_printf(bio_err, "What you are about to enter is what is called a Distinguished Name or a DN.\n"); 1231 BIO_printf(bio_err, "There are quite a few fields but you can leave some blank\n"); 1232 BIO_printf(bio_err, "For some fields there will be a default value,\n"); 1233 BIO_printf(bio_err, "If you enter '.', the field will be left blank.\n"); 1234 BIO_printf(bio_err, "-----\n"); 1235 } 1236 if (sk_CONF_VALUE_num(dn_sk)) { 1237 i = -1; 1238 start: for (;;) { 1239 int ret; 1240 i++; 1241 if (sk_CONF_VALUE_num(dn_sk) <= i) 1242 break; 1243 1244 v = sk_CONF_VALUE_value(dn_sk, i); 1245 p = q = NULL; 1246 type = v->name; 1247 if (!check_end(type, "_min") || !check_end(type, "_max") || 1248 !check_end(type, "_default") || 1249 !check_end(type, "_value")) 1250 continue; 1251 /* 1252 * Skip past any leading X. X: X, etc to allow for 1253 * multiple instances 1254 */ 1255 for (p = v->name; *p; p++) 1256 if ((*p == ':') || (*p == ',') || 1257 (*p == '.')) { 1258 p++; 1259 if (*p) 1260 type = p; 1261 break; 1262 } 1263 if (*type == '+') { 1264 mval = -1; 1265 type++; 1266 } else 1267 mval = 0; 1268 /* If OBJ not recognised ignore it */ 1269 if ((nid = OBJ_txt2nid(type)) == NID_undef) 1270 goto start; 1271 ret = snprintf(buf, sizeof buf, "%s_default", v->name); 1272 if (ret < 0 || ret >= sizeof(buf)) { 1273 BIO_printf(bio_err, "Name '%s' too long for default\n", 1274 v->name); 1275 return 0; 1276 } 1277 if ((def = NCONF_get_string(req_conf, dn_sect, buf)) == NULL) { 1278 ERR_clear_error(); 1279 def = ""; 1280 } 1281 ret = snprintf(buf, sizeof buf, "%s_value", v->name); 1282 if (ret < 0 || ret >= sizeof(buf)) { 1283 BIO_printf(bio_err, "Name '%s' too long for value\n", 1284 v->name); 1285 return 0; 1286 } 1287 if ((value = NCONF_get_string(req_conf, dn_sect, buf)) == NULL) { 1288 ERR_clear_error(); 1289 value = NULL; 1290 } 1291 ret = snprintf(buf, sizeof buf, "%s_min", v->name); 1292 if (ret < 0 || ret >= sizeof(buf)) { 1293 BIO_printf(bio_err, "Name '%s' too long for min\n", 1294 v->name); 1295 return 0; 1296 } 1297 if (!NCONF_get_number(req_conf, dn_sect, buf, &n_min)) { 1298 ERR_clear_error(); 1299 n_min = -1; 1300 } 1301 ret = snprintf(buf, sizeof buf, "%s_max", v->name); 1302 if (ret < 0 || ret >= sizeof(buf)) { 1303 BIO_printf(bio_err, "Name '%s' too long for max\n", 1304 v->name); 1305 return 0; 1306 } 1307 if (!NCONF_get_number(req_conf, dn_sect, buf, &n_max)) { 1308 ERR_clear_error(); 1309 n_max = -1; 1310 } 1311 if (!add_DN_object(subj, v->value, def, value, nid, 1312 n_min, n_max, chtype, mval)) 1313 return 0; 1314 } 1315 if (X509_NAME_entry_count(subj) == 0) { 1316 BIO_printf(bio_err, "error, no objects specified in config file\n"); 1317 return 0; 1318 } 1319 if (attribs) { 1320 if ((attr_sk != NULL) && (sk_CONF_VALUE_num(attr_sk) > 0) && 1321 (!req_config.batch)) { 1322 BIO_printf(bio_err, 1323 "\nPlease enter the following 'extra' attributes\n"); 1324 BIO_printf(bio_err, 1325 "to be sent with your certificate request\n"); 1326 } 1327 i = -1; 1328 start2: for (;;) { 1329 int ret; 1330 i++; 1331 if ((attr_sk == NULL) || 1332 (sk_CONF_VALUE_num(attr_sk) <= i)) 1333 break; 1334 1335 v = sk_CONF_VALUE_value(attr_sk, i); 1336 type = v->name; 1337 if ((nid = OBJ_txt2nid(type)) == NID_undef) 1338 goto start2; 1339 ret = snprintf(buf, sizeof buf, "%s_default", type); 1340 if (ret < 0 || ret >= sizeof(buf)) { 1341 BIO_printf(bio_err, "Name '%s' too long for default\n", 1342 v->name); 1343 return 0; 1344 } 1345 if ((def = NCONF_get_string(req_conf, attr_sect, buf)) 1346 == NULL) { 1347 ERR_clear_error(); 1348 def = ""; 1349 } 1350 ret = snprintf(buf, sizeof buf, "%s_value", type); 1351 if (ret < 0 || ret >= sizeof(buf)) { 1352 BIO_printf(bio_err, "Name '%s' too long for value\n", 1353 v->name); 1354 return 0; 1355 } 1356 if ((value = NCONF_get_string(req_conf, attr_sect, buf)) 1357 == NULL) { 1358 ERR_clear_error(); 1359 value = NULL; 1360 } 1361 ret = snprintf(buf, sizeof buf, "%s_min", type); 1362 if (ret < 0 || ret >= sizeof(buf)) { 1363 BIO_printf(bio_err, "Name '%s' too long for min\n", 1364 v->name); 1365 return 0; 1366 } 1367 if (!NCONF_get_number(req_conf, attr_sect, buf, &n_min)) { 1368 ERR_clear_error(); 1369 n_min = -1; 1370 } 1371 ret = snprintf(buf, sizeof buf, "%s_max", type); 1372 if (ret < 0 || ret >= sizeof(buf)) { 1373 BIO_printf(bio_err, "Name '%s' too long for max\n", 1374 v->name); 1375 return 0; 1376 } 1377 if (!NCONF_get_number(req_conf, attr_sect, buf, &n_max)) { 1378 ERR_clear_error(); 1379 n_max = -1; 1380 } 1381 if (!add_attribute_object(req, 1382 v->value, def, value, nid, n_min, n_max, chtype)) 1383 return 0; 1384 } 1385 } 1386 } else { 1387 BIO_printf(bio_err, "No template, please set one up.\n"); 1388 return 0; 1389 } 1390 1391 return 1; 1392 1393 } 1394 1395 static int 1396 auto_info(X509_REQ * req, STACK_OF(CONF_VALUE) * dn_sk, 1397 STACK_OF(CONF_VALUE) * attr_sk, int attribs, unsigned long chtype) 1398 { 1399 int i; 1400 char *p, *q; 1401 char *type; 1402 CONF_VALUE *v; 1403 X509_NAME *subj; 1404 1405 subj = X509_REQ_get_subject_name(req); 1406 1407 for (i = 0; i < sk_CONF_VALUE_num(dn_sk); i++) { 1408 int mval; 1409 v = sk_CONF_VALUE_value(dn_sk, i); 1410 p = q = NULL; 1411 type = v->name; 1412 /* 1413 * Skip past any leading X. X: X, etc to allow for multiple 1414 * instances 1415 */ 1416 for (p = v->name; *p; p++) 1417 if ((*p == ':') || (*p == ',') || (*p == '.')) { 1418 p++; 1419 if (*p) 1420 type = p; 1421 break; 1422 } 1423 if (*p == '+') { 1424 p++; 1425 mval = -1; 1426 } else 1427 mval = 0; 1428 if (!X509_NAME_add_entry_by_txt(subj, type, chtype, 1429 (unsigned char *) v->value, -1, -1, mval)) 1430 return 0; 1431 1432 } 1433 1434 if (!X509_NAME_entry_count(subj)) { 1435 BIO_printf(bio_err, "error, no objects specified in config file\n"); 1436 return 0; 1437 } 1438 if (attribs) { 1439 for (i = 0; i < sk_CONF_VALUE_num(attr_sk); i++) { 1440 v = sk_CONF_VALUE_value(attr_sk, i); 1441 if (!X509_REQ_add1_attr_by_txt(req, v->name, chtype, 1442 (unsigned char *) v->value, -1)) 1443 return 0; 1444 } 1445 } 1446 return 1; 1447 } 1448 1449 1450 static int 1451 add_DN_object(X509_NAME * n, char *text, const char *def, char *value, 1452 int nid, int n_min, int n_max, unsigned long chtype, int mval) 1453 { 1454 int i, ret = 0; 1455 char buf[1024]; 1456 start: 1457 if (!req_config.batch) 1458 BIO_printf(bio_err, "%s [%s]:", text, def); 1459 (void) BIO_flush(bio_err); 1460 if (value != NULL) { 1461 strlcpy(buf, value, sizeof buf); 1462 strlcat(buf, "\n", sizeof buf); 1463 BIO_printf(bio_err, "%s\n", value); 1464 } else { 1465 buf[0] = '\0'; 1466 if (!req_config.batch) { 1467 if (!fgets(buf, sizeof buf, stdin)) 1468 return 0; 1469 } else { 1470 buf[0] = '\n'; 1471 buf[1] = '\0'; 1472 } 1473 } 1474 1475 if (buf[0] == '\0') 1476 return (0); 1477 else if (buf[0] == '\n') { 1478 if ((def == NULL) || (def[0] == '\0')) 1479 return (1); 1480 strlcpy(buf, def, sizeof buf); 1481 strlcat(buf, "\n", sizeof buf); 1482 } else if ((buf[0] == '.') && (buf[1] == '\n')) 1483 return (1); 1484 1485 i = strlen(buf); 1486 if (buf[i - 1] != '\n') { 1487 BIO_printf(bio_err, "weird input :-(\n"); 1488 return (0); 1489 } 1490 buf[--i] = '\0'; 1491 if (!req_check_len(i, n_min, n_max)) 1492 goto start; 1493 if (!X509_NAME_add_entry_by_NID(n, nid, chtype, 1494 (unsigned char *) buf, -1, -1, mval)) 1495 goto err; 1496 ret = 1; 1497 err: 1498 return (ret); 1499 } 1500 1501 static int 1502 add_attribute_object(X509_REQ * req, char *text, const char *def, 1503 char *value, int nid, int n_min, 1504 int n_max, unsigned long chtype) 1505 { 1506 int i; 1507 static char buf[1024]; 1508 1509 start: 1510 if (!req_config.batch) 1511 BIO_printf(bio_err, "%s [%s]:", text, def); 1512 (void) BIO_flush(bio_err); 1513 if (value != NULL) { 1514 strlcpy(buf, value, sizeof buf); 1515 strlcat(buf, "\n", sizeof buf); 1516 BIO_printf(bio_err, "%s\n", value); 1517 } else { 1518 buf[0] = '\0'; 1519 if (!req_config.batch) { 1520 if (!fgets(buf, sizeof buf, stdin)) 1521 return 0; 1522 } else { 1523 buf[0] = '\n'; 1524 buf[1] = '\0'; 1525 } 1526 } 1527 1528 if (buf[0] == '\0') 1529 return (0); 1530 else if (buf[0] == '\n') { 1531 if ((def == NULL) || (def[0] == '\0')) 1532 return (1); 1533 strlcpy(buf, def, sizeof buf); 1534 strlcat(buf, "\n", sizeof buf); 1535 } else if ((buf[0] == '.') && (buf[1] == '\n')) 1536 return (1); 1537 1538 i = strlen(buf); 1539 if (buf[i - 1] != '\n') { 1540 BIO_printf(bio_err, "weird input :-(\n"); 1541 return (0); 1542 } 1543 buf[--i] = '\0'; 1544 if (!req_check_len(i, n_min, n_max)) 1545 goto start; 1546 1547 if (!X509_REQ_add1_attr_by_NID(req, nid, chtype, 1548 (unsigned char *) buf, -1)) { 1549 BIO_printf(bio_err, "Error adding attribute\n"); 1550 ERR_print_errors(bio_err); 1551 goto err; 1552 } 1553 return (1); 1554 err: 1555 return (0); 1556 } 1557 1558 static int 1559 req_check_len(int len, int n_min, int n_max) 1560 { 1561 if ((n_min > 0) && (len < n_min)) { 1562 BIO_printf(bio_err, "string is too short, it needs to be at least %d bytes long\n", n_min); 1563 return (0); 1564 } 1565 if ((n_max >= 0) && (len > n_max)) { 1566 BIO_printf(bio_err, "string is too long, it needs to be less than %d bytes long\n", n_max); 1567 return (0); 1568 } 1569 return (1); 1570 } 1571 1572 /* Check if the end of a string matches 'end' */ 1573 static int 1574 check_end(const char *str, const char *end) 1575 { 1576 int elen, slen; 1577 const char *tmp; 1578 elen = strlen(end); 1579 slen = strlen(str); 1580 if (elen > slen) 1581 return 1; 1582 tmp = str + slen - elen; 1583 return strcmp(tmp, end); 1584 } 1585 1586 static EVP_PKEY_CTX * 1587 set_keygen_ctx(BIO * err, const char *gstr, int *pkey_type, 1588 long *pkeylen, char **palgnam) 1589 { 1590 EVP_PKEY_CTX *gctx = NULL; 1591 EVP_PKEY *param = NULL; 1592 long keylen = -1; 1593 BIO *pbio = NULL; 1594 const char *paramfile = NULL; 1595 const char *errstr; 1596 1597 if (gstr == NULL) { 1598 *pkey_type = EVP_PKEY_RSA; 1599 keylen = *pkeylen; 1600 } else if (gstr[0] >= '0' && gstr[0] <= '9') { 1601 *pkey_type = EVP_PKEY_RSA; 1602 keylen = strtonum(gstr, 0, LONG_MAX, &errstr); 1603 if (errstr) { 1604 BIO_printf(err, "bad algorithm %s: %s\n", gstr, errstr); 1605 return NULL; 1606 } 1607 *pkeylen = keylen; 1608 } else if (!strncmp(gstr, "param:", 6)) 1609 paramfile = gstr + 6; 1610 else { 1611 const char *p = strchr(gstr, ':'); 1612 int len; 1613 const EVP_PKEY_ASN1_METHOD *ameth; 1614 1615 if (p) 1616 len = p - gstr; 1617 else 1618 len = strlen(gstr); 1619 1620 ameth = EVP_PKEY_asn1_find_str(NULL, gstr, len); 1621 1622 if (!ameth) { 1623 BIO_printf(err, "Unknown algorithm %.*s\n", len, gstr); 1624 return NULL; 1625 } 1626 EVP_PKEY_asn1_get0_info(NULL, pkey_type, NULL, NULL, NULL, 1627 ameth); 1628 if (*pkey_type == EVP_PKEY_RSA) { 1629 if (p) { 1630 keylen = strtonum(p + 1, 0, LONG_MAX, &errstr); 1631 if (errstr) { 1632 BIO_printf(err, "bad algorithm %s: %s\n", 1633 p + 1, errstr); 1634 return NULL; 1635 } 1636 *pkeylen = keylen; 1637 } else 1638 keylen = *pkeylen; 1639 } else if (p) 1640 paramfile = p + 1; 1641 } 1642 1643 if (paramfile) { 1644 pbio = BIO_new_file(paramfile, "r"); 1645 if (!pbio) { 1646 BIO_printf(err, "Can't open parameter file %s\n", 1647 paramfile); 1648 return NULL; 1649 } 1650 param = PEM_read_bio_Parameters(pbio, NULL); 1651 1652 if (!param) { 1653 X509 *x; 1654 (void) BIO_reset(pbio); 1655 x = PEM_read_bio_X509(pbio, NULL, NULL, NULL); 1656 if (x) { 1657 param = X509_get_pubkey(x); 1658 X509_free(x); 1659 } 1660 } 1661 BIO_free(pbio); 1662 1663 if (!param) { 1664 BIO_printf(err, "Error reading parameter file %s\n", 1665 paramfile); 1666 return NULL; 1667 } 1668 if (*pkey_type == -1) 1669 *pkey_type = EVP_PKEY_id(param); 1670 else if (*pkey_type != EVP_PKEY_base_id(param)) { 1671 BIO_printf(err, "Key Type does not match parameters\n"); 1672 EVP_PKEY_free(param); 1673 return NULL; 1674 } 1675 } 1676 if (palgnam) { 1677 const EVP_PKEY_ASN1_METHOD *ameth; 1678 const char *anam; 1679 ameth = EVP_PKEY_asn1_find(NULL, *pkey_type); 1680 if (!ameth) { 1681 BIO_puts(err, "Internal error: can't find key algorithm\n"); 1682 return NULL; 1683 } 1684 EVP_PKEY_asn1_get0_info(NULL, NULL, NULL, NULL, &anam, ameth); 1685 *palgnam = strdup(anam); 1686 } 1687 if (param) { 1688 gctx = EVP_PKEY_CTX_new(param, NULL); 1689 *pkeylen = EVP_PKEY_bits(param); 1690 EVP_PKEY_free(param); 1691 } else 1692 gctx = EVP_PKEY_CTX_new_id(*pkey_type, NULL); 1693 1694 if (!gctx) { 1695 BIO_puts(err, "Error allocating keygen context\n"); 1696 ERR_print_errors(err); 1697 return NULL; 1698 } 1699 if (EVP_PKEY_keygen_init(gctx) <= 0) { 1700 BIO_puts(err, "Error initializing keygen context\n"); 1701 ERR_print_errors(err); 1702 return NULL; 1703 } 1704 if ((*pkey_type == EVP_PKEY_RSA) && (keylen != -1)) { 1705 if (EVP_PKEY_CTX_set_rsa_keygen_bits(gctx, keylen) <= 0) { 1706 BIO_puts(err, "Error setting RSA keysize\n"); 1707 ERR_print_errors(err); 1708 EVP_PKEY_CTX_free(gctx); 1709 return NULL; 1710 } 1711 } 1712 1713 return gctx; 1714 } 1715 1716 static int 1717 genpkey_cb(EVP_PKEY_CTX * ctx) 1718 { 1719 char c = '*'; 1720 BIO *b = EVP_PKEY_CTX_get_app_data(ctx); 1721 int p; 1722 p = EVP_PKEY_CTX_get_keygen_info(ctx, 0); 1723 if (p == 0) 1724 c = '.'; 1725 if (p == 1) 1726 c = '+'; 1727 if (p == 2) 1728 c = '*'; 1729 if (p == 3) 1730 c = '\n'; 1731 BIO_write(b, &c, 1); 1732 (void) BIO_flush(b); 1733 return 1; 1734 } 1735 1736 static int 1737 do_sign_init(BIO * err, EVP_MD_CTX * ctx, EVP_PKEY * pkey, 1738 const EVP_MD * md, STACK_OF(OPENSSL_STRING) * sigopts) 1739 { 1740 EVP_PKEY_CTX *pkctx = NULL; 1741 int i; 1742 EVP_MD_CTX_init(ctx); 1743 if (!EVP_DigestSignInit(ctx, &pkctx, md, NULL, pkey)) 1744 return 0; 1745 for (i = 0; i < sk_OPENSSL_STRING_num(sigopts); i++) { 1746 char *sigopt = sk_OPENSSL_STRING_value(sigopts, i); 1747 if (pkey_ctrl_string(pkctx, sigopt) <= 0) { 1748 BIO_printf(err, "parameter error \"%s\"\n", sigopt); 1749 ERR_print_errors(bio_err); 1750 return 0; 1751 } 1752 } 1753 return 1; 1754 } 1755 1756 int 1757 do_X509_sign(BIO * err, X509 * x, EVP_PKEY * pkey, const EVP_MD * md, 1758 STACK_OF(OPENSSL_STRING) * sigopts) 1759 { 1760 EVP_MD_CTX *mctx; 1761 int rv; 1762 1763 if ((mctx = EVP_MD_CTX_new()) == NULL) 1764 return 0; 1765 1766 rv = do_sign_init(err, mctx, pkey, md, sigopts); 1767 if (rv > 0) 1768 rv = X509_sign_ctx(x, mctx); 1769 1770 EVP_MD_CTX_free(mctx); 1771 1772 return rv > 0; 1773 } 1774 1775 1776 int 1777 do_X509_REQ_sign(BIO * err, X509_REQ * x, EVP_PKEY * pkey, const EVP_MD * md, 1778 STACK_OF(OPENSSL_STRING) * sigopts) 1779 { 1780 EVP_MD_CTX *mctx; 1781 int rv; 1782 1783 if ((mctx = EVP_MD_CTX_new()) == NULL) 1784 return 0; 1785 1786 rv = do_sign_init(err, mctx, pkey, md, sigopts); 1787 if (rv > 0) 1788 rv = X509_REQ_sign_ctx(x, mctx); 1789 1790 EVP_MD_CTX_free(mctx); 1791 1792 return rv > 0; 1793 } 1794 1795 1796 1797 int 1798 do_X509_CRL_sign(BIO * err, X509_CRL * x, EVP_PKEY * pkey, const EVP_MD * md, 1799 STACK_OF(OPENSSL_STRING) * sigopts) 1800 { 1801 int rv; 1802 EVP_MD_CTX *mctx; 1803 1804 if ((mctx = EVP_MD_CTX_new()) == NULL) 1805 return 0; 1806 1807 rv = do_sign_init(err, mctx, pkey, md, sigopts); 1808 if (rv > 0) 1809 rv = X509_CRL_sign_ctx(x, mctx); 1810 1811 EVP_MD_CTX_free(mctx); 1812 1813 return rv > 0; 1814 } 1815 1816 static unsigned long 1817 ext_name_hash(const OPENSSL_STRING *a) 1818 { 1819 return lh_strhash((const char *)a); 1820 } 1821 1822 static int 1823 ext_name_cmp(const OPENSSL_STRING *a, const OPENSSL_STRING *b) 1824 { 1825 return strcmp((const char *)a, (const char *)b); 1826 } 1827 1828 static void 1829 exts_cleanup(OPENSSL_STRING *x) 1830 { 1831 free((char *)x); 1832 } 1833 1834 /* 1835 * Is the |kv| key already duplicated ? This is remarkably tricky to get right. 1836 * Return 0 if unique, -1 on runtime error; 1 if found or a syntax error. 1837 */ 1838 static int 1839 duplicated(LHASH_OF(OPENSSL_STRING) *addexts, char *kv) 1840 { 1841 char *p; 1842 size_t off; 1843 1844 /* Check syntax. */ 1845 /* Skip leading whitespace, make a copy. */ 1846 while (*kv && isspace(*kv)) 1847 if (*++kv == '\0') 1848 return 1; 1849 if ((p = strchr(kv, '=')) == NULL) 1850 return 1; 1851 off = p - kv; 1852 if ((kv = strdup(kv)) == NULL) 1853 return -1; 1854 1855 /* Skip trailing space before the equal sign. */ 1856 for (p = kv + off; p > kv; --p) 1857 if (!isspace(p[-1])) 1858 break; 1859 if (p == kv) { 1860 free(kv); 1861 return 1; 1862 } 1863 *p = '\0'; 1864 1865 /* See if "key" is there by attempting to add it. */ 1866 if ((p = (char *)lh_OPENSSL_STRING_insert(addexts, (OPENSSL_STRING*)kv)) 1867 != NULL || lh_OPENSSL_STRING_error(addexts)) { 1868 free(p != NULL ? p : kv); 1869 return -1; 1870 } 1871 1872 return 0; 1873 } 1874