1 /* $OpenBSD: req.c,v 1.24 2022/11/11 17:07:39 joshua 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 (pledge("stdio cpath wpath rpath tty", NULL) == -1) { 567 perror("pledge"); 568 exit(1); 569 } 570 571 memset(&req_config, 0, sizeof(req_config)); 572 573 req_config.chtype = MBSTRING_ASC; 574 req_config.days = 30; 575 req_config.digest = EVP_sha256(); 576 req_config.newkey = -1; 577 req_config.informat = FORMAT_PEM; 578 req_config.keyform = FORMAT_PEM; 579 req_config.outformat = FORMAT_PEM; 580 581 if (options_parse(argc, argv, req_options, NULL, NULL) != 0) { 582 req_usage(); 583 return (1); 584 } 585 586 req_conf = NULL; 587 cipher = EVP_aes_256_cbc(); 588 589 if (!app_passwd(bio_err, req_config.passargin, req_config.passargout, &passin, &passout)) { 590 BIO_printf(bio_err, "Error getting passwords\n"); 591 goto end; 592 } 593 if (req_config.template != NULL) { 594 long errline = -1; 595 596 if (req_config.verbose) 597 BIO_printf(bio_err, "Using configuration from %s\n", req_config.template); 598 if ((req_conf = NCONF_new(NULL)) == NULL) 599 goto end; 600 if(!NCONF_load(req_conf, req_config.template, &errline)) { 601 BIO_printf(bio_err, "error on line %ld of %s\n", errline, req_config.template); 602 goto end; 603 } 604 } else { 605 req_conf = config; 606 607 if (req_conf == NULL) { 608 BIO_printf(bio_err, "Unable to load config info from %s\n", default_config_file); 609 if (req_config.newreq) 610 goto end; 611 } else if (req_config.verbose) 612 BIO_printf(bio_err, "Using configuration from %s\n", 613 default_config_file); 614 } 615 616 if (req_config.addext_bio != NULL) { 617 long errline = -1; 618 if (req_config.verbose) 619 BIO_printf(bio_err, 620 "Using additional configuration from command line\n"); 621 if ((addext_conf = NCONF_new(NULL)) == NULL) 622 goto end; 623 if (!NCONF_load_bio(addext_conf, req_config.addext_bio, &errline)) { 624 BIO_printf(bio_err, 625 "req: Error on line %ld of config input\n", 626 errline); 627 goto end; 628 } 629 } 630 631 if (req_conf != NULL) { 632 if (!load_config(bio_err, req_conf)) 633 goto end; 634 p = NCONF_get_string(req_conf, NULL, "oid_file"); 635 if (p == NULL) 636 ERR_clear_error(); 637 if (p != NULL) { 638 BIO *oid_bio; 639 640 oid_bio = BIO_new_file(p, "r"); 641 if (oid_bio == NULL) { 642 /* 643 BIO_printf(bio_err,"problems opening %s for extra oid's\n",p); 644 ERR_print_errors(bio_err); 645 */ 646 } else { 647 OBJ_create_objects(oid_bio); 648 BIO_free(oid_bio); 649 } 650 } 651 } 652 if (!add_oid_section(bio_err, req_conf)) 653 goto end; 654 655 if (md_alg == NULL) { 656 p = NCONF_get_string(req_conf, SECTION, "default_md"); 657 if (p == NULL) 658 ERR_clear_error(); 659 if (p != NULL) { 660 if ((md_alg = EVP_get_digestbyname(p)) != NULL) 661 req_config.digest = md_alg; 662 } 663 } 664 if (!req_config.extensions) { 665 req_config.extensions = NCONF_get_string(req_conf, SECTION, V3_EXTENSIONS); 666 if (!req_config.extensions) 667 ERR_clear_error(); 668 } 669 if (req_config.extensions) { 670 /* Check syntax of file */ 671 X509V3_CTX ctx; 672 X509V3_set_ctx_test(&ctx); 673 X509V3_set_nconf(&ctx, req_conf); 674 if (!X509V3_EXT_add_nconf(req_conf, &ctx, req_config.extensions, NULL)) { 675 BIO_printf(bio_err, 676 "Error Loading extension section %s\n", req_config.extensions); 677 goto end; 678 } 679 } 680 if (addext_conf != NULL) { 681 /* Check syntax of command line extensions */ 682 X509V3_CTX ctx; 683 X509V3_set_ctx_test(&ctx); 684 X509V3_set_nconf(&ctx, addext_conf); 685 if (!X509V3_EXT_add_nconf(addext_conf, &ctx, "default", NULL)) { 686 BIO_printf(bio_err, 687 "Error Loading command line extensions\n"); 688 goto end; 689 } 690 } 691 if (!passin) { 692 passin = NCONF_get_string(req_conf, SECTION, "input_password"); 693 if (!passin) 694 ERR_clear_error(); 695 } 696 if (!passout) { 697 passout = NCONF_get_string(req_conf, SECTION, "output_password"); 698 if (!passout) 699 ERR_clear_error(); 700 } 701 p = NCONF_get_string(req_conf, SECTION, STRING_MASK); 702 if (!p) 703 ERR_clear_error(); 704 705 if (p && !ASN1_STRING_set_default_mask_asc(p)) { 706 BIO_printf(bio_err, "Invalid global string mask setting %s\n", p); 707 goto end; 708 } 709 if (req_config.chtype != MBSTRING_UTF8) { 710 p = NCONF_get_string(req_conf, SECTION, UTF8_IN); 711 if (!p) 712 ERR_clear_error(); 713 else if (!strcmp(p, "yes")) 714 req_config.chtype = MBSTRING_UTF8; 715 } 716 if (!req_config.req_exts) { 717 req_config.req_exts = NCONF_get_string(req_conf, SECTION, REQ_EXTENSIONS); 718 if (!req_config.req_exts) 719 ERR_clear_error(); 720 } 721 if (req_config.req_exts) { 722 /* Check syntax of file */ 723 X509V3_CTX ctx; 724 X509V3_set_ctx_test(&ctx); 725 X509V3_set_nconf(&ctx, req_conf); 726 if (!X509V3_EXT_add_nconf(req_conf, &ctx, req_config.req_exts, NULL)) { 727 BIO_printf(bio_err, 728 "Error Loading request extension section %s\n", 729 req_config.req_exts); 730 goto end; 731 } 732 } 733 in = BIO_new(BIO_s_file()); 734 out = BIO_new(BIO_s_file()); 735 if ((in == NULL) || (out == NULL)) 736 goto end; 737 738 if (req_config.keyfile != NULL) { 739 pkey = load_key(bio_err, req_config.keyfile, req_config.keyform, 0, passin, 740 "Private Key"); 741 if (!pkey) { 742 /* 743 * load_key() has already printed an appropriate 744 * message 745 */ 746 goto end; 747 } 748 } 749 if (req_config.newreq && (pkey == NULL)) { 750 if (!NCONF_get_number(req_conf, SECTION, BITS, &req_config.newkey)) { 751 req_config.newkey = DEFAULT_KEY_LENGTH; 752 } 753 if (req_config.keyalg) { 754 genctx = set_keygen_ctx(bio_err, req_config.keyalg, &pkey_type, &req_config.newkey, 755 &keyalgstr); 756 if (!genctx) 757 goto end; 758 } 759 if (req_config.newkey < MIN_KEY_LENGTH && (pkey_type == EVP_PKEY_RSA || pkey_type == EVP_PKEY_DSA)) { 760 BIO_printf(bio_err, "private key length is too short,\n"); 761 BIO_printf(bio_err, "it needs to be at least %d bits, not %ld\n", MIN_KEY_LENGTH, req_config.newkey); 762 goto end; 763 } 764 if (!genctx) { 765 genctx = set_keygen_ctx(bio_err, NULL, &pkey_type, &req_config.newkey, 766 &keyalgstr); 767 if (!genctx) 768 goto end; 769 } 770 if (req_config.pkeyopts) { 771 char *genopt; 772 for (i = 0; i < sk_OPENSSL_STRING_num(req_config.pkeyopts); i++) { 773 genopt = sk_OPENSSL_STRING_value(req_config.pkeyopts, i); 774 if (pkey_ctrl_string(genctx, genopt) <= 0) { 775 BIO_printf(bio_err, 776 "parameter error \"%s\"\n", 777 genopt); 778 ERR_print_errors(bio_err); 779 goto end; 780 } 781 } 782 } 783 BIO_printf(bio_err, "Generating a %ld bit %s private key\n", 784 req_config.newkey, keyalgstr); 785 786 EVP_PKEY_CTX_set_cb(genctx, genpkey_cb); 787 EVP_PKEY_CTX_set_app_data(genctx, bio_err); 788 789 if (EVP_PKEY_keygen(genctx, &pkey) <= 0) { 790 BIO_puts(bio_err, "Error Generating Key\n"); 791 goto end; 792 } 793 EVP_PKEY_CTX_free(genctx); 794 genctx = NULL; 795 796 if (req_config.keyout == NULL) { 797 req_config.keyout = NCONF_get_string(req_conf, SECTION, KEYFILE); 798 if (req_config.keyout == NULL) 799 ERR_clear_error(); 800 } 801 if (req_config.keyout == NULL) { 802 BIO_printf(bio_err, "writing new private key to stdout\n"); 803 BIO_set_fp(out, stdout, BIO_NOCLOSE); 804 } else { 805 BIO_printf(bio_err, "writing new private key to '%s'\n", req_config.keyout); 806 if (BIO_write_filename(out, req_config.keyout) <= 0) { 807 perror(req_config.keyout); 808 goto end; 809 } 810 } 811 812 p = NCONF_get_string(req_conf, SECTION, "encrypt_rsa_key"); 813 if (p == NULL) { 814 ERR_clear_error(); 815 p = NCONF_get_string(req_conf, SECTION, "encrypt_key"); 816 if (p == NULL) 817 ERR_clear_error(); 818 } 819 if ((p != NULL) && (strcmp(p, "no") == 0)) 820 cipher = NULL; 821 if (req_config.nodes) 822 cipher = NULL; 823 824 i = 0; 825 loop: 826 if (!PEM_write_bio_PrivateKey(out, pkey, cipher, 827 NULL, 0, NULL, passout)) { 828 if ((ERR_GET_REASON(ERR_peek_error()) == 829 PEM_R_PROBLEMS_GETTING_PASSWORD) && (i < 3)) { 830 ERR_clear_error(); 831 i++; 832 goto loop; 833 } 834 goto end; 835 } 836 BIO_printf(bio_err, "-----\n"); 837 } 838 if (!req_config.newreq) { 839 if (req_config.infile == NULL) 840 BIO_set_fp(in, stdin, BIO_NOCLOSE); 841 else { 842 if (BIO_read_filename(in, req_config.infile) <= 0) { 843 perror(req_config.infile); 844 goto end; 845 } 846 } 847 848 if (req_config.informat == FORMAT_ASN1) 849 req = d2i_X509_REQ_bio(in, NULL); 850 else if (req_config.informat == FORMAT_PEM) 851 req = PEM_read_bio_X509_REQ(in, NULL, NULL, NULL); 852 else { 853 BIO_printf(bio_err, "bad input format specified for X509 request\n"); 854 goto end; 855 } 856 if (req == NULL) { 857 BIO_printf(bio_err, "unable to load X509 request\n"); 858 goto end; 859 } 860 } 861 if (req_config.newreq || req_config.x509) { 862 if (pkey == NULL) { 863 BIO_printf(bio_err, "you need to specify a private key\n"); 864 goto end; 865 } 866 if (req == NULL) { 867 req = X509_REQ_new(); 868 if (req == NULL) { 869 goto end; 870 } 871 i = make_REQ(req, pkey, req_config.subj, req_config.multirdn, !req_config.x509, req_config.chtype); 872 req_config.subj = NULL; /* done processing '-subj' option */ 873 if (!i) { 874 BIO_printf(bio_err, "problems making Certificate Request\n"); 875 goto end; 876 } 877 } 878 if (req_config.x509) { 879 EVP_PKEY *tmppkey; 880 881 X509V3_CTX ext_ctx; 882 if ((x509ss = X509_new()) == NULL) 883 goto end; 884 885 /* Set version to V3 */ 886 if ((req_config.extensions != NULL || addext_conf != NULL) && 887 !X509_set_version(x509ss, 2)) 888 goto end; 889 if (req_config.serial) { 890 if (!X509_set_serialNumber(x509ss, req_config.serial)) 891 goto end; 892 } else { 893 if (!rand_serial(NULL, 894 X509_get_serialNumber(x509ss))) 895 goto end; 896 } 897 898 if (!X509_set_issuer_name(x509ss, X509_REQ_get_subject_name(req))) 899 goto end; 900 if (!X509_gmtime_adj(X509_get_notBefore(x509ss), 0)) 901 goto end; 902 if (!X509_time_adj_ex(X509_get_notAfter(x509ss), req_config.days, 0, NULL)) 903 goto end; 904 if (!X509_set_subject_name(x509ss, X509_REQ_get_subject_name(req))) 905 goto end; 906 if ((tmppkey = X509_REQ_get0_pubkey(req)) == NULL) 907 goto end; 908 if (!X509_set_pubkey(x509ss, tmppkey)) 909 goto end; 910 911 /* Set up V3 context struct */ 912 913 X509V3_set_ctx(&ext_ctx, x509ss, x509ss, NULL, NULL, 0); 914 X509V3_set_nconf(&ext_ctx, req_conf); 915 916 /* Add extensions */ 917 if (req_config.extensions && !X509V3_EXT_add_nconf(req_conf, 918 &ext_ctx, req_config.extensions, x509ss)) { 919 BIO_printf(bio_err, 920 "Error Loading extension section %s\n", 921 req_config.extensions); 922 goto end; 923 } 924 if (addext_conf != NULL && 925 !X509V3_EXT_add_nconf(addext_conf, &ext_ctx, 926 "default", x509ss)) { 927 BIO_printf(bio_err, 928 "Error Loading command line extensions\n"); 929 goto end; 930 } 931 i = do_X509_sign(bio_err, x509ss, pkey, req_config.digest, req_config.sigopts); 932 if (!i) { 933 ERR_print_errors(bio_err); 934 goto end; 935 } 936 } else { 937 X509V3_CTX ext_ctx; 938 939 /* Set up V3 context struct */ 940 941 X509V3_set_ctx(&ext_ctx, NULL, NULL, req, NULL, 0); 942 X509V3_set_nconf(&ext_ctx, req_conf); 943 944 /* Add extensions */ 945 if (req_config.req_exts && !X509V3_EXT_REQ_add_nconf(req_conf, 946 &ext_ctx, req_config.req_exts, req)) { 947 BIO_printf(bio_err, 948 "Error Loading extension section %s\n", 949 req_config.req_exts); 950 goto end; 951 } 952 if (addext_conf != NULL && 953 !X509V3_EXT_REQ_add_nconf(addext_conf, &ext_ctx, 954 "default", req)) { 955 BIO_printf(bio_err, 956 "Error Loading command line extensions\n"); 957 goto end; 958 } 959 i = do_X509_REQ_sign(bio_err, req, pkey, req_config.digest, req_config.sigopts); 960 if (!i) { 961 ERR_print_errors(bio_err); 962 goto end; 963 } 964 } 965 } 966 if (req_config.subj && req_config.x509) { 967 BIO_printf(bio_err, "Cannot modify certificate subject\n"); 968 goto end; 969 } 970 if (req_config.subj && !req_config.x509) { 971 if (req_config.verbose) { 972 BIO_printf(bio_err, "Modifying Request's Subject\n"); 973 print_name(bio_err, "old subject=", X509_REQ_get_subject_name(req), req_config.nmflag); 974 } 975 if (build_subject(req, req_config.subj, req_config.chtype, req_config.multirdn) == 0) { 976 BIO_printf(bio_err, "ERROR: cannot modify subject\n"); 977 ex = 1; 978 goto end; 979 } 980 981 if (req_config.verbose) { 982 print_name(bio_err, "new subject=", X509_REQ_get_subject_name(req), req_config.nmflag); 983 } 984 } 985 if (req_config.verify && !req_config.x509) { 986 EVP_PKEY *pubkey = pkey; 987 988 if (pubkey == NULL) 989 pubkey = X509_REQ_get0_pubkey(req); 990 if (pubkey == NULL) 991 goto end; 992 i = X509_REQ_verify(req, pubkey); 993 if (i < 0) { 994 goto end; 995 } else if (i == 0) { 996 BIO_printf(bio_err, "verify failure\n"); 997 ERR_print_errors(bio_err); 998 } else /* if (i > 0) */ 999 BIO_printf(bio_err, "verify OK\n"); 1000 } 1001 if (req_config.noout && !req_config.text && !req_config.modulus && !req_config.subject && !req_config.pubkey) { 1002 ex = 0; 1003 goto end; 1004 } 1005 if (req_config.outfile == NULL) { 1006 BIO_set_fp(out, stdout, BIO_NOCLOSE); 1007 } else { 1008 if ((req_config.keyout != NULL) && (strcmp(req_config.outfile, req_config.keyout) == 0)) 1009 i = (int) BIO_append_filename(out, req_config.outfile); 1010 else 1011 i = (int) BIO_write_filename(out, req_config.outfile); 1012 if (!i) { 1013 perror(req_config.outfile); 1014 goto end; 1015 } 1016 } 1017 1018 if (req_config.pubkey) { 1019 EVP_PKEY *tpubkey; 1020 1021 if ((tpubkey = X509_REQ_get0_pubkey(req)) == NULL) { 1022 BIO_printf(bio_err, "Error getting public key\n"); 1023 ERR_print_errors(bio_err); 1024 goto end; 1025 } 1026 PEM_write_bio_PUBKEY(out, tpubkey); 1027 } 1028 if (req_config.text) { 1029 if (req_config.x509) 1030 X509_print_ex(out, x509ss, req_config.nmflag, req_config.reqflag); 1031 else 1032 X509_REQ_print_ex(out, req, req_config.nmflag, req_config.reqflag); 1033 } 1034 if (req_config.subject) { 1035 if (req_config.x509) 1036 print_name(out, "subject=", X509_get_subject_name(x509ss), req_config.nmflag); 1037 else 1038 print_name(out, "subject=", X509_REQ_get_subject_name(req), req_config.nmflag); 1039 } 1040 if (req_config.modulus) { 1041 EVP_PKEY *tpubkey; 1042 1043 if (req_config.x509) 1044 tpubkey = X509_get0_pubkey(x509ss); 1045 else 1046 tpubkey = X509_REQ_get0_pubkey(req); 1047 if (tpubkey == NULL) { 1048 fprintf(stdout, "Modulus=unavailable\n"); 1049 goto end; 1050 } 1051 fprintf(stdout, "Modulus="); 1052 if (EVP_PKEY_base_id(tpubkey) == EVP_PKEY_RSA) { 1053 const BIGNUM *n = NULL; 1054 1055 RSA_get0_key(EVP_PKEY_get0_RSA(tpubkey), &n, NULL, NULL); 1056 1057 BN_print(out, n); 1058 } else 1059 fprintf(stdout, "Wrong Algorithm type"); 1060 fprintf(stdout, "\n"); 1061 } 1062 if (!req_config.noout && !req_config.x509) { 1063 if (req_config.outformat == FORMAT_ASN1) 1064 i = i2d_X509_REQ_bio(out, req); 1065 else if (req_config.outformat == FORMAT_PEM) { 1066 if (req_config.newhdr) 1067 i = PEM_write_bio_X509_REQ_NEW(out, req); 1068 else 1069 i = PEM_write_bio_X509_REQ(out, req); 1070 } else { 1071 BIO_printf(bio_err, "bad output format specified for outfile\n"); 1072 goto end; 1073 } 1074 if (!i) { 1075 BIO_printf(bio_err, "unable to write X509 request\n"); 1076 goto end; 1077 } 1078 } 1079 if (!req_config.noout && req_config.x509 && (x509ss != NULL)) { 1080 if (req_config.outformat == FORMAT_ASN1) 1081 i = i2d_X509_bio(out, x509ss); 1082 else if (req_config.outformat == FORMAT_PEM) 1083 i = PEM_write_bio_X509(out, x509ss); 1084 else { 1085 BIO_printf(bio_err, "bad output format specified for outfile\n"); 1086 goto end; 1087 } 1088 if (!i) { 1089 BIO_printf(bio_err, "unable to write X509 certificate\n"); 1090 goto end; 1091 } 1092 } 1093 ex = 0; 1094 end: 1095 if (ex) { 1096 ERR_print_errors(bio_err); 1097 } 1098 if ((req_conf != NULL) && (req_conf != config)) 1099 NCONF_free(req_conf); 1100 NCONF_free(addext_conf); 1101 BIO_free(req_config.addext_bio); 1102 BIO_free(in); 1103 BIO_free_all(out); 1104 EVP_PKEY_free(pkey); 1105 if (genctx) 1106 EVP_PKEY_CTX_free(genctx); 1107 if (req_config.pkeyopts) 1108 sk_OPENSSL_STRING_free(req_config.pkeyopts); 1109 if (req_config.sigopts) 1110 sk_OPENSSL_STRING_free(req_config.sigopts); 1111 lh_OPENSSL_STRING_doall(req_config.addexts, (LHASH_DOALL_FN_TYPE)exts_cleanup); 1112 lh_OPENSSL_STRING_free(req_config.addexts); 1113 free(keyalgstr); 1114 X509_REQ_free(req); 1115 X509_free(x509ss); 1116 ASN1_INTEGER_free(req_config.serial); 1117 if (req_config.passargin && passin) 1118 free(passin); 1119 if (req_config.passargout && passout) 1120 free(passout); 1121 OBJ_cleanup(); 1122 1123 return (ex); 1124 } 1125 1126 static int 1127 make_REQ(X509_REQ * req, EVP_PKEY * pkey, char *subj, int multirdn, 1128 int attribs, unsigned long chtype) 1129 { 1130 int ret = 0, i; 1131 char no_prompt = 0; 1132 STACK_OF(CONF_VALUE) * dn_sk, *attr_sk = NULL; 1133 char *tmp, *dn_sect, *attr_sect; 1134 1135 tmp = NCONF_get_string(req_conf, SECTION, PROMPT); 1136 if (tmp == NULL) 1137 ERR_clear_error(); 1138 if ((tmp != NULL) && !strcmp(tmp, "no")) 1139 no_prompt = 1; 1140 1141 dn_sect = NCONF_get_string(req_conf, SECTION, DISTINGUISHED_NAME); 1142 if (dn_sect == NULL) { 1143 BIO_printf(bio_err, "unable to find '%s' in config\n", 1144 DISTINGUISHED_NAME); 1145 goto err; 1146 } 1147 dn_sk = NCONF_get_section(req_conf, dn_sect); 1148 if (dn_sk == NULL) { 1149 BIO_printf(bio_err, "unable to get '%s' section\n", dn_sect); 1150 goto err; 1151 } 1152 attr_sect = NCONF_get_string(req_conf, SECTION, ATTRIBUTES); 1153 if (attr_sect == NULL) { 1154 ERR_clear_error(); 1155 attr_sk = NULL; 1156 } else { 1157 attr_sk = NCONF_get_section(req_conf, attr_sect); 1158 if (attr_sk == NULL) { 1159 BIO_printf(bio_err, "unable to get '%s' section\n", attr_sect); 1160 goto err; 1161 } 1162 } 1163 1164 /* setup version number */ 1165 if (!X509_REQ_set_version(req, 0L)) 1166 goto err; /* version 1 */ 1167 1168 if (no_prompt) 1169 i = auto_info(req, dn_sk, attr_sk, attribs, chtype); 1170 else { 1171 if (subj) 1172 i = build_subject(req, subj, chtype, multirdn); 1173 else 1174 i = prompt_info(req, dn_sk, dn_sect, attr_sk, attr_sect, attribs, chtype); 1175 } 1176 if (!i) 1177 goto err; 1178 1179 if (!X509_REQ_set_pubkey(req, pkey)) 1180 goto err; 1181 1182 ret = 1; 1183 err: 1184 return (ret); 1185 } 1186 1187 /* 1188 * subject is expected to be in the format /type0=value0/type1=value1/type2=... 1189 * where characters may be escaped by \ 1190 */ 1191 static int 1192 build_subject(X509_REQ * req, char *subject, unsigned long chtype, int multirdn) 1193 { 1194 X509_NAME *n; 1195 1196 if (!(n = parse_name(subject, chtype, multirdn))) 1197 return 0; 1198 1199 if (!X509_REQ_set_subject_name(req, n)) { 1200 X509_NAME_free(n); 1201 return 0; 1202 } 1203 X509_NAME_free(n); 1204 return 1; 1205 } 1206 1207 1208 static int 1209 prompt_info(X509_REQ * req, 1210 STACK_OF(CONF_VALUE) * dn_sk, char *dn_sect, 1211 STACK_OF(CONF_VALUE) * attr_sk, char *attr_sect, int attribs, 1212 unsigned long chtype) 1213 { 1214 int i; 1215 char *p, *q; 1216 char buf[100]; 1217 int nid, mval; 1218 long n_min, n_max; 1219 char *type, *value; 1220 const char *def; 1221 CONF_VALUE *v; 1222 X509_NAME *subj; 1223 subj = X509_REQ_get_subject_name(req); 1224 1225 if (!req_config.batch) { 1226 BIO_printf(bio_err, "You are about to be asked to enter information that will be incorporated\n"); 1227 BIO_printf(bio_err, "into your certificate request.\n"); 1228 BIO_printf(bio_err, "What you are about to enter is what is called a Distinguished Name or a DN.\n"); 1229 BIO_printf(bio_err, "There are quite a few fields but you can leave some blank\n"); 1230 BIO_printf(bio_err, "For some fields there will be a default value,\n"); 1231 BIO_printf(bio_err, "If you enter '.', the field will be left blank.\n"); 1232 BIO_printf(bio_err, "-----\n"); 1233 } 1234 if (sk_CONF_VALUE_num(dn_sk)) { 1235 i = -1; 1236 start: for (;;) { 1237 int ret; 1238 i++; 1239 if (sk_CONF_VALUE_num(dn_sk) <= i) 1240 break; 1241 1242 v = sk_CONF_VALUE_value(dn_sk, i); 1243 p = q = NULL; 1244 type = v->name; 1245 if (!check_end(type, "_min") || !check_end(type, "_max") || 1246 !check_end(type, "_default") || 1247 !check_end(type, "_value")) 1248 continue; 1249 /* 1250 * Skip past any leading X. X: X, etc to allow for 1251 * multiple instances 1252 */ 1253 for (p = v->name; *p; p++) 1254 if ((*p == ':') || (*p == ',') || 1255 (*p == '.')) { 1256 p++; 1257 if (*p) 1258 type = p; 1259 break; 1260 } 1261 if (*type == '+') { 1262 mval = -1; 1263 type++; 1264 } else 1265 mval = 0; 1266 /* If OBJ not recognised ignore it */ 1267 if ((nid = OBJ_txt2nid(type)) == NID_undef) 1268 goto start; 1269 ret = snprintf(buf, sizeof buf, "%s_default", v->name); 1270 if (ret < 0 || ret >= sizeof(buf)) { 1271 BIO_printf(bio_err, "Name '%s' too long for default\n", 1272 v->name); 1273 return 0; 1274 } 1275 if ((def = NCONF_get_string(req_conf, dn_sect, buf)) == NULL) { 1276 ERR_clear_error(); 1277 def = ""; 1278 } 1279 ret = snprintf(buf, sizeof buf, "%s_value", v->name); 1280 if (ret < 0 || ret >= sizeof(buf)) { 1281 BIO_printf(bio_err, "Name '%s' too long for value\n", 1282 v->name); 1283 return 0; 1284 } 1285 if ((value = NCONF_get_string(req_conf, dn_sect, buf)) == NULL) { 1286 ERR_clear_error(); 1287 value = NULL; 1288 } 1289 ret = snprintf(buf, sizeof buf, "%s_min", v->name); 1290 if (ret < 0 || ret >= sizeof(buf)) { 1291 BIO_printf(bio_err, "Name '%s' too long for min\n", 1292 v->name); 1293 return 0; 1294 } 1295 if (!NCONF_get_number(req_conf, dn_sect, buf, &n_min)) { 1296 ERR_clear_error(); 1297 n_min = -1; 1298 } 1299 ret = snprintf(buf, sizeof buf, "%s_max", v->name); 1300 if (ret < 0 || ret >= sizeof(buf)) { 1301 BIO_printf(bio_err, "Name '%s' too long for max\n", 1302 v->name); 1303 return 0; 1304 } 1305 if (!NCONF_get_number(req_conf, dn_sect, buf, &n_max)) { 1306 ERR_clear_error(); 1307 n_max = -1; 1308 } 1309 if (!add_DN_object(subj, v->value, def, value, nid, 1310 n_min, n_max, chtype, mval)) 1311 return 0; 1312 } 1313 if (X509_NAME_entry_count(subj) == 0) { 1314 BIO_printf(bio_err, "error, no objects specified in config file\n"); 1315 return 0; 1316 } 1317 if (attribs) { 1318 if ((attr_sk != NULL) && (sk_CONF_VALUE_num(attr_sk) > 0) && 1319 (!req_config.batch)) { 1320 BIO_printf(bio_err, 1321 "\nPlease enter the following 'extra' attributes\n"); 1322 BIO_printf(bio_err, 1323 "to be sent with your certificate request\n"); 1324 } 1325 i = -1; 1326 start2: for (;;) { 1327 int ret; 1328 i++; 1329 if ((attr_sk == NULL) || 1330 (sk_CONF_VALUE_num(attr_sk) <= i)) 1331 break; 1332 1333 v = sk_CONF_VALUE_value(attr_sk, i); 1334 type = v->name; 1335 if ((nid = OBJ_txt2nid(type)) == NID_undef) 1336 goto start2; 1337 ret = snprintf(buf, sizeof buf, "%s_default", type); 1338 if (ret < 0 || ret >= sizeof(buf)) { 1339 BIO_printf(bio_err, "Name '%s' too long for default\n", 1340 v->name); 1341 return 0; 1342 } 1343 if ((def = NCONF_get_string(req_conf, attr_sect, buf)) 1344 == NULL) { 1345 ERR_clear_error(); 1346 def = ""; 1347 } 1348 ret = snprintf(buf, sizeof buf, "%s_value", type); 1349 if (ret < 0 || ret >= sizeof(buf)) { 1350 BIO_printf(bio_err, "Name '%s' too long for value\n", 1351 v->name); 1352 return 0; 1353 } 1354 if ((value = NCONF_get_string(req_conf, attr_sect, buf)) 1355 == NULL) { 1356 ERR_clear_error(); 1357 value = NULL; 1358 } 1359 ret = snprintf(buf, sizeof buf, "%s_min", type); 1360 if (ret < 0 || ret >= sizeof(buf)) { 1361 BIO_printf(bio_err, "Name '%s' too long for min\n", 1362 v->name); 1363 return 0; 1364 } 1365 if (!NCONF_get_number(req_conf, attr_sect, buf, &n_min)) { 1366 ERR_clear_error(); 1367 n_min = -1; 1368 } 1369 ret = snprintf(buf, sizeof buf, "%s_max", type); 1370 if (ret < 0 || ret >= sizeof(buf)) { 1371 BIO_printf(bio_err, "Name '%s' too long for max\n", 1372 v->name); 1373 return 0; 1374 } 1375 if (!NCONF_get_number(req_conf, attr_sect, buf, &n_max)) { 1376 ERR_clear_error(); 1377 n_max = -1; 1378 } 1379 if (!add_attribute_object(req, 1380 v->value, def, value, nid, n_min, n_max, chtype)) 1381 return 0; 1382 } 1383 } 1384 } else { 1385 BIO_printf(bio_err, "No template, please set one up.\n"); 1386 return 0; 1387 } 1388 1389 return 1; 1390 1391 } 1392 1393 static int 1394 auto_info(X509_REQ * req, STACK_OF(CONF_VALUE) * dn_sk, 1395 STACK_OF(CONF_VALUE) * attr_sk, int attribs, unsigned long chtype) 1396 { 1397 int i; 1398 char *p, *q; 1399 char *type; 1400 CONF_VALUE *v; 1401 X509_NAME *subj; 1402 1403 subj = X509_REQ_get_subject_name(req); 1404 1405 for (i = 0; i < sk_CONF_VALUE_num(dn_sk); i++) { 1406 int mval; 1407 v = sk_CONF_VALUE_value(dn_sk, i); 1408 p = q = NULL; 1409 type = v->name; 1410 /* 1411 * Skip past any leading X. X: X, etc to allow for multiple 1412 * instances 1413 */ 1414 for (p = v->name; *p; p++) 1415 if ((*p == ':') || (*p == ',') || (*p == '.')) { 1416 p++; 1417 if (*p) 1418 type = p; 1419 break; 1420 } 1421 if (*p == '+') { 1422 p++; 1423 mval = -1; 1424 } else 1425 mval = 0; 1426 if (!X509_NAME_add_entry_by_txt(subj, type, chtype, 1427 (unsigned char *) v->value, -1, -1, mval)) 1428 return 0; 1429 1430 } 1431 1432 if (!X509_NAME_entry_count(subj)) { 1433 BIO_printf(bio_err, "error, no objects specified in config file\n"); 1434 return 0; 1435 } 1436 if (attribs) { 1437 for (i = 0; i < sk_CONF_VALUE_num(attr_sk); i++) { 1438 v = sk_CONF_VALUE_value(attr_sk, i); 1439 if (!X509_REQ_add1_attr_by_txt(req, v->name, chtype, 1440 (unsigned char *) v->value, -1)) 1441 return 0; 1442 } 1443 } 1444 return 1; 1445 } 1446 1447 1448 static int 1449 add_DN_object(X509_NAME * n, char *text, const char *def, char *value, 1450 int nid, int n_min, int n_max, unsigned long chtype, int mval) 1451 { 1452 int i, ret = 0; 1453 char buf[1024]; 1454 start: 1455 if (!req_config.batch) 1456 BIO_printf(bio_err, "%s [%s]:", text, def); 1457 (void) BIO_flush(bio_err); 1458 if (value != NULL) { 1459 strlcpy(buf, value, sizeof buf); 1460 strlcat(buf, "\n", sizeof buf); 1461 BIO_printf(bio_err, "%s\n", value); 1462 } else { 1463 buf[0] = '\0'; 1464 if (!req_config.batch) { 1465 if (!fgets(buf, sizeof buf, stdin)) 1466 return 0; 1467 } else { 1468 buf[0] = '\n'; 1469 buf[1] = '\0'; 1470 } 1471 } 1472 1473 if (buf[0] == '\0') 1474 return (0); 1475 else if (buf[0] == '\n') { 1476 if ((def == NULL) || (def[0] == '\0')) 1477 return (1); 1478 strlcpy(buf, def, sizeof buf); 1479 strlcat(buf, "\n", sizeof buf); 1480 } else if ((buf[0] == '.') && (buf[1] == '\n')) 1481 return (1); 1482 1483 i = strlen(buf); 1484 if (buf[i - 1] != '\n') { 1485 BIO_printf(bio_err, "weird input :-(\n"); 1486 return (0); 1487 } 1488 buf[--i] = '\0'; 1489 if (!req_check_len(i, n_min, n_max)) 1490 goto start; 1491 if (!X509_NAME_add_entry_by_NID(n, nid, chtype, 1492 (unsigned char *) buf, -1, -1, mval)) 1493 goto err; 1494 ret = 1; 1495 err: 1496 return (ret); 1497 } 1498 1499 static int 1500 add_attribute_object(X509_REQ * req, char *text, const char *def, 1501 char *value, int nid, int n_min, 1502 int n_max, unsigned long chtype) 1503 { 1504 int i; 1505 static char buf[1024]; 1506 1507 start: 1508 if (!req_config.batch) 1509 BIO_printf(bio_err, "%s [%s]:", text, def); 1510 (void) BIO_flush(bio_err); 1511 if (value != NULL) { 1512 strlcpy(buf, value, sizeof buf); 1513 strlcat(buf, "\n", sizeof buf); 1514 BIO_printf(bio_err, "%s\n", value); 1515 } else { 1516 buf[0] = '\0'; 1517 if (!req_config.batch) { 1518 if (!fgets(buf, sizeof buf, stdin)) 1519 return 0; 1520 } else { 1521 buf[0] = '\n'; 1522 buf[1] = '\0'; 1523 } 1524 } 1525 1526 if (buf[0] == '\0') 1527 return (0); 1528 else if (buf[0] == '\n') { 1529 if ((def == NULL) || (def[0] == '\0')) 1530 return (1); 1531 strlcpy(buf, def, sizeof buf); 1532 strlcat(buf, "\n", sizeof buf); 1533 } else if ((buf[0] == '.') && (buf[1] == '\n')) 1534 return (1); 1535 1536 i = strlen(buf); 1537 if (buf[i - 1] != '\n') { 1538 BIO_printf(bio_err, "weird input :-(\n"); 1539 return (0); 1540 } 1541 buf[--i] = '\0'; 1542 if (!req_check_len(i, n_min, n_max)) 1543 goto start; 1544 1545 if (!X509_REQ_add1_attr_by_NID(req, nid, chtype, 1546 (unsigned char *) buf, -1)) { 1547 BIO_printf(bio_err, "Error adding attribute\n"); 1548 ERR_print_errors(bio_err); 1549 goto err; 1550 } 1551 return (1); 1552 err: 1553 return (0); 1554 } 1555 1556 static int 1557 req_check_len(int len, int n_min, int n_max) 1558 { 1559 if ((n_min > 0) && (len < n_min)) { 1560 BIO_printf(bio_err, "string is too short, it needs to be at least %d bytes long\n", n_min); 1561 return (0); 1562 } 1563 if ((n_max >= 0) && (len > n_max)) { 1564 BIO_printf(bio_err, "string is too long, it needs to be less than %d bytes long\n", n_max); 1565 return (0); 1566 } 1567 return (1); 1568 } 1569 1570 /* Check if the end of a string matches 'end' */ 1571 static int 1572 check_end(const char *str, const char *end) 1573 { 1574 int elen, slen; 1575 const char *tmp; 1576 elen = strlen(end); 1577 slen = strlen(str); 1578 if (elen > slen) 1579 return 1; 1580 tmp = str + slen - elen; 1581 return strcmp(tmp, end); 1582 } 1583 1584 static EVP_PKEY_CTX * 1585 set_keygen_ctx(BIO * err, const char *gstr, int *pkey_type, 1586 long *pkeylen, char **palgnam) 1587 { 1588 EVP_PKEY_CTX *gctx = NULL; 1589 EVP_PKEY *param = NULL; 1590 long keylen = -1; 1591 BIO *pbio = NULL; 1592 const char *paramfile = NULL; 1593 const char *errstr; 1594 1595 if (gstr == NULL) { 1596 *pkey_type = EVP_PKEY_RSA; 1597 keylen = *pkeylen; 1598 } else if (gstr[0] >= '0' && gstr[0] <= '9') { 1599 *pkey_type = EVP_PKEY_RSA; 1600 keylen = strtonum(gstr, 0, LONG_MAX, &errstr); 1601 if (errstr) { 1602 BIO_printf(err, "bad algorithm %s: %s\n", gstr, errstr); 1603 return NULL; 1604 } 1605 *pkeylen = keylen; 1606 } else if (!strncmp(gstr, "param:", 6)) 1607 paramfile = gstr + 6; 1608 else { 1609 const char *p = strchr(gstr, ':'); 1610 int len; 1611 const EVP_PKEY_ASN1_METHOD *ameth; 1612 1613 if (p) 1614 len = p - gstr; 1615 else 1616 len = strlen(gstr); 1617 1618 ameth = EVP_PKEY_asn1_find_str(NULL, gstr, len); 1619 1620 if (!ameth) { 1621 BIO_printf(err, "Unknown algorithm %.*s\n", len, gstr); 1622 return NULL; 1623 } 1624 EVP_PKEY_asn1_get0_info(NULL, pkey_type, NULL, NULL, NULL, 1625 ameth); 1626 if (*pkey_type == EVP_PKEY_RSA) { 1627 if (p) { 1628 keylen = strtonum(p + 1, 0, LONG_MAX, &errstr); 1629 if (errstr) { 1630 BIO_printf(err, "bad algorithm %s: %s\n", 1631 p + 1, errstr); 1632 return NULL; 1633 } 1634 *pkeylen = keylen; 1635 } else 1636 keylen = *pkeylen; 1637 } else if (p) 1638 paramfile = p + 1; 1639 } 1640 1641 if (paramfile) { 1642 pbio = BIO_new_file(paramfile, "r"); 1643 if (!pbio) { 1644 BIO_printf(err, "Can't open parameter file %s\n", 1645 paramfile); 1646 return NULL; 1647 } 1648 param = PEM_read_bio_Parameters(pbio, NULL); 1649 1650 if (!param) { 1651 X509 *x; 1652 (void) BIO_reset(pbio); 1653 x = PEM_read_bio_X509(pbio, NULL, NULL, NULL); 1654 if (x) { 1655 param = X509_get_pubkey(x); 1656 X509_free(x); 1657 } 1658 } 1659 BIO_free(pbio); 1660 1661 if (!param) { 1662 BIO_printf(err, "Error reading parameter file %s\n", 1663 paramfile); 1664 return NULL; 1665 } 1666 if (*pkey_type == -1) 1667 *pkey_type = EVP_PKEY_id(param); 1668 else if (*pkey_type != EVP_PKEY_base_id(param)) { 1669 BIO_printf(err, "Key Type does not match parameters\n"); 1670 EVP_PKEY_free(param); 1671 return NULL; 1672 } 1673 } 1674 if (palgnam) { 1675 const EVP_PKEY_ASN1_METHOD *ameth; 1676 const char *anam; 1677 ameth = EVP_PKEY_asn1_find(NULL, *pkey_type); 1678 if (!ameth) { 1679 BIO_puts(err, "Internal error: can't find key algorithm\n"); 1680 return NULL; 1681 } 1682 EVP_PKEY_asn1_get0_info(NULL, NULL, NULL, NULL, &anam, ameth); 1683 *palgnam = strdup(anam); 1684 } 1685 if (param) { 1686 gctx = EVP_PKEY_CTX_new(param, NULL); 1687 *pkeylen = EVP_PKEY_bits(param); 1688 EVP_PKEY_free(param); 1689 } else 1690 gctx = EVP_PKEY_CTX_new_id(*pkey_type, NULL); 1691 1692 if (!gctx) { 1693 BIO_puts(err, "Error allocating keygen context\n"); 1694 ERR_print_errors(err); 1695 return NULL; 1696 } 1697 if (EVP_PKEY_keygen_init(gctx) <= 0) { 1698 BIO_puts(err, "Error initializing keygen context\n"); 1699 ERR_print_errors(err); 1700 return NULL; 1701 } 1702 if ((*pkey_type == EVP_PKEY_RSA) && (keylen != -1)) { 1703 if (EVP_PKEY_CTX_set_rsa_keygen_bits(gctx, keylen) <= 0) { 1704 BIO_puts(err, "Error setting RSA keysize\n"); 1705 ERR_print_errors(err); 1706 EVP_PKEY_CTX_free(gctx); 1707 return NULL; 1708 } 1709 } 1710 1711 return gctx; 1712 } 1713 1714 static int 1715 genpkey_cb(EVP_PKEY_CTX * ctx) 1716 { 1717 char c = '*'; 1718 BIO *b = EVP_PKEY_CTX_get_app_data(ctx); 1719 int p; 1720 p = EVP_PKEY_CTX_get_keygen_info(ctx, 0); 1721 if (p == 0) 1722 c = '.'; 1723 if (p == 1) 1724 c = '+'; 1725 if (p == 2) 1726 c = '*'; 1727 if (p == 3) 1728 c = '\n'; 1729 BIO_write(b, &c, 1); 1730 (void) BIO_flush(b); 1731 return 1; 1732 } 1733 1734 static int 1735 do_sign_init(BIO * err, EVP_MD_CTX * ctx, EVP_PKEY * pkey, 1736 const EVP_MD * md, STACK_OF(OPENSSL_STRING) * sigopts) 1737 { 1738 EVP_PKEY_CTX *pkctx = NULL; 1739 int i; 1740 EVP_MD_CTX_init(ctx); 1741 if (!EVP_DigestSignInit(ctx, &pkctx, md, NULL, pkey)) 1742 return 0; 1743 for (i = 0; i < sk_OPENSSL_STRING_num(sigopts); i++) { 1744 char *sigopt = sk_OPENSSL_STRING_value(sigopts, i); 1745 if (pkey_ctrl_string(pkctx, sigopt) <= 0) { 1746 BIO_printf(err, "parameter error \"%s\"\n", sigopt); 1747 ERR_print_errors(bio_err); 1748 return 0; 1749 } 1750 } 1751 return 1; 1752 } 1753 1754 int 1755 do_X509_sign(BIO * err, X509 * x, EVP_PKEY * pkey, const EVP_MD * md, 1756 STACK_OF(OPENSSL_STRING) * sigopts) 1757 { 1758 EVP_MD_CTX *mctx; 1759 int rv; 1760 1761 if ((mctx = EVP_MD_CTX_new()) == NULL) 1762 return 0; 1763 1764 rv = do_sign_init(err, mctx, pkey, md, sigopts); 1765 if (rv > 0) 1766 rv = X509_sign_ctx(x, mctx); 1767 1768 EVP_MD_CTX_free(mctx); 1769 1770 return rv > 0; 1771 } 1772 1773 1774 int 1775 do_X509_REQ_sign(BIO * err, X509_REQ * x, EVP_PKEY * pkey, const EVP_MD * md, 1776 STACK_OF(OPENSSL_STRING) * sigopts) 1777 { 1778 EVP_MD_CTX *mctx; 1779 int rv; 1780 1781 if ((mctx = EVP_MD_CTX_new()) == NULL) 1782 return 0; 1783 1784 rv = do_sign_init(err, mctx, pkey, md, sigopts); 1785 if (rv > 0) 1786 rv = X509_REQ_sign_ctx(x, mctx); 1787 1788 EVP_MD_CTX_free(mctx); 1789 1790 return rv > 0; 1791 } 1792 1793 1794 1795 int 1796 do_X509_CRL_sign(BIO * err, X509_CRL * x, EVP_PKEY * pkey, const EVP_MD * md, 1797 STACK_OF(OPENSSL_STRING) * sigopts) 1798 { 1799 int rv; 1800 EVP_MD_CTX *mctx; 1801 1802 if ((mctx = EVP_MD_CTX_new()) == NULL) 1803 return 0; 1804 1805 rv = do_sign_init(err, mctx, pkey, md, sigopts); 1806 if (rv > 0) 1807 rv = X509_CRL_sign_ctx(x, mctx); 1808 1809 EVP_MD_CTX_free(mctx); 1810 1811 return rv > 0; 1812 } 1813 1814 static unsigned long 1815 ext_name_hash(const OPENSSL_STRING *a) 1816 { 1817 return lh_strhash((const char *)a); 1818 } 1819 1820 static int 1821 ext_name_cmp(const OPENSSL_STRING *a, const OPENSSL_STRING *b) 1822 { 1823 return strcmp((const char *)a, (const char *)b); 1824 } 1825 1826 static void 1827 exts_cleanup(OPENSSL_STRING *x) 1828 { 1829 free((char *)x); 1830 } 1831 1832 /* 1833 * Is the |kv| key already duplicated ? This is remarkably tricky to get right. 1834 * Return 0 if unique, -1 on runtime error; 1 if found or a syntax error. 1835 */ 1836 static int 1837 duplicated(LHASH_OF(OPENSSL_STRING) *addexts, char *kv) 1838 { 1839 char *p; 1840 size_t off; 1841 1842 /* Check syntax. */ 1843 /* Skip leading whitespace, make a copy. */ 1844 while (*kv && isspace(*kv)) 1845 if (*++kv == '\0') 1846 return 1; 1847 if ((p = strchr(kv, '=')) == NULL) 1848 return 1; 1849 off = p - kv; 1850 if ((kv = strdup(kv)) == NULL) 1851 return -1; 1852 1853 /* Skip trailing space before the equal sign. */ 1854 for (p = kv + off; p > kv; --p) 1855 if (!isspace(p[-1])) 1856 break; 1857 if (p == kv) { 1858 free(kv); 1859 return 1; 1860 } 1861 *p = '\0'; 1862 1863 /* See if "key" is there by attempting to add it. */ 1864 if ((p = (char *)lh_OPENSSL_STRING_insert(addexts, (OPENSSL_STRING*)kv)) 1865 != NULL || lh_OPENSSL_STRING_error(addexts)) { 1866 free(p != NULL ? p : kv); 1867 return -1; 1868 } 1869 1870 return 0; 1871 } 1872