apps/req.c

   1 /* apps/req.c */
   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 #include <stdio.h>
  60 #include <stdlib.h>
  61 #include <time.h>
  62 #include <string.h>
  63 #ifdef NO_STDIO
  64 #define APPS_WIN16
  65 #endif
  66 #include "apps.h"
  67 #include <openssl/bio.h>
  68 #include <openssl/evp.h>
  69 #include <openssl/conf.h>
  70 #include <openssl/err.h>
  71 #include <openssl/asn1.h>
  72 #include <openssl/x509.h>
  73 #include <openssl/x509v3.h>
  74 #include <openssl/objects.h>
  75 #include <openssl/pem.h>
  76
  77 #define SECTION         "req"
  78
  79 #define BITS            "default_bits"
  80 #define KEYFILE         "default_keyfile"
  81 #define PROMPT          "prompt"
  82 #define DISTINGUISHED_NAME      "distinguished_name"
  83 #define ATTRIBUTES      "attributes"
  84 #define V3_EXTENSIONS   "x509_extensions"
  85 #define REQ_EXTENSIONS  "req_extensions"
  86 #define STRING_MASK     "string_mask"
  87
  88 #define DEFAULT_KEY_LENGTH      512
  89 #define MIN_KEY_LENGTH          384
  90
  91 #undef PROG
  92 #define PROG    req_main
  93
  94 /* -inform arg  - input format - default PEM (DER or PEM)
  95  * -outform arg - output format - default PEM
  96  * -in arg      - input file - default stdin
  97  * -out arg     - output file - default stdout
  98  * -verify      - check request signature
  99  * -noout       - don't print stuff out.
 100  * -text        - print out human readable text.
 101  * -nodes       - no des encryption
 102  * -config file - Load configuration file.
 103  * -key file    - make a request using key in file (or use it for verification).
 104  * -keyform     - key file format.
 105  * -newkey      - make a key and a request.
 106  * -modulus     - print RSA modulus.
 107  * -x509        - output a self signed X509 structure instead.
 108  * -asn1-kludge - output new certificate request in a format that some CA's
 109  *                require.  This format is wrong
 110  */
 111
 112 static int make_REQ(X509_REQ *req,EVP_PKEY *pkey,int attribs);
 113 static int prompt_info(X509_REQ *req,
 114                 STACK_OF(CONF_VALUE) *dn_sk, char *dn_sect,
 115                 STACK_OF(CONF_VALUE) *attr_sk, char *attr_sect, int attribs);
 116 static int auto_info(X509_REQ *req, STACK_OF(CONF_VALUE) *sk,
 117                                 STACK_OF(CONF_VALUE) *attr, int attribs);
 118 static int add_attribute_object(X509_REQ *req, char *text,
 119                                 char *def, char *value, int nid, int min,
 120                                 int max);
 121 static int add_DN_object(X509_NAME *n, char *text, char *def, char *value,
 122         int nid,int min,int max);
 123 #ifndef NO_RSA
 124 static void MS_CALLBACK req_cb(int p,int n,void *arg);
 125 #endif
 126 static int req_check_len(int len,int min,int max);
 127 static int check_end(char *str, char *end);
 128 static int add_oid_section(LHASH *conf);
 129 #ifndef MONOLITH
 130 static char *default_config_file=NULL;
 131 static LHASH *config=NULL;
 132 #endif
 133 static LHASH *req_conf=NULL;
 134
 135 #define TYPE_RSA        1
 136 #define TYPE_DSA        2
 137 #define TYPE_DH         3
 138
 139 int MAIN(int, char **);
 140
 141 int MAIN(int argc, char **argv)
 142         {
 143 #ifndef NO_DSA
 144         DSA *dsa_params=NULL;
 145 #endif
 146         int ex=1,x509=0,days=30;
 147         X509 *x509ss=NULL;
 148         X509_REQ *req=NULL;
 149         EVP_PKEY *pkey=NULL;
 150         int i,badops=0,newreq=0,newkey= -1,pkey_type=0;
 151         BIO *in=NULL,*out=NULL;
 152         int informat,outformat,verify=0,noout=0,text=0,keyform=FORMAT_PEM;
 153         int nodes=0,kludge=0;
 154         char *infile,*outfile,*prog,*keyfile=NULL,*template=NULL,*keyout=NULL;
 155         char *extensions = NULL;
 156         char *req_exts = NULL;
 157         EVP_CIPHER *cipher=NULL;
 158         int modulus=0;
 159         char *passargin = NULL, *passargout = NULL;
 160         char *passin = NULL, *passout = NULL;
 161         char *p;
 162         const EVP_MD *md_alg=NULL,*digest=EVP_md5();
 163 #ifndef MONOLITH
 164         MS_STATIC char config_name[256];
 165 #endif
 166
 167         req_conf = NULL;
 168 #ifndef NO_DES
 169         cipher=EVP_des_ede3_cbc();
 170 #endif
 171         apps_startup();
 172
 173         if (bio_err == NULL)
 174                 if ((bio_err=BIO_new(BIO_s_file())) != NULL)
 175                         BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);
 176
 177         infile=NULL;
 178         outfile=NULL;
 179         informat=FORMAT_PEM;
 180         outformat=FORMAT_PEM;
 181
 182         prog=argv[0];
 183         argc--;
 184         argv++;
 185         while (argc >= 1)
 186                 {
 187                 if      (strcmp(*argv,"-inform") == 0)
 188                         {
 189                         if (--argc < 1) goto bad;
 190                         informat=str2fmt(*(++argv));
 191                         }
 192                 else if (strcmp(*argv,"-outform") == 0)
 193                         {
 194                         if (--argc < 1) goto bad;
 195                         outformat=str2fmt(*(++argv));
 196                         }
 197                 else if (strcmp(*argv,"-key") == 0)
 198                         {
 199                         if (--argc < 1) goto bad;
 200                         keyfile= *(++argv);
 201                         }
 202                 else if (strcmp(*argv,"-new") == 0)
 203                         {
 204                         pkey_type=TYPE_RSA;
 205                         newreq=1;
 206                         }
 207                 else if (strcmp(*argv,"-config") == 0)
 208                         {
 209                         if (--argc < 1) goto bad;
 210                         template= *(++argv);
 211                         }
 212                 else if (strcmp(*argv,"-keyform") == 0)
 213                         {
 214                         if (--argc < 1) goto bad;
 215                         keyform=str2fmt(*(++argv));
 216                         }
 217                 else if (strcmp(*argv,"-in") == 0)
 218                         {
 219                         if (--argc < 1) goto bad;
 220                         infile= *(++argv);
 221                         }
 222                 else if (strcmp(*argv,"-out") == 0)
 223                         {
 224                         if (--argc < 1) goto bad;
 225                         outfile= *(++argv);
 226                         }
 227                 else if (strcmp(*argv,"-keyout") == 0)
 228                         {
 229                         if (--argc < 1) goto bad;
 230                         keyout= *(++argv);
 231                         }
 232                 else if (strcmp(*argv,"-passin") == 0)
 233                         {
 234                         if (--argc < 1) goto bad;
 235                         passargin= *(++argv);
 236                         }
 237                 else if (strcmp(*argv,"-passout") == 0)
 238                         {
 239                         if (--argc < 1) goto bad;
 240                         passargout= *(++argv);
 241                         }
 242                 else if (strcmp(*argv,"-newkey") == 0)
 243                         {
 244                         int is_numeric;
 245
 246                         if (--argc < 1) goto bad;
 247                         p= *(++argv);
 248                         is_numeric = p[0] >= '0' && p[0] <= '9';
 249                         if (strncmp("rsa:",p,4) == 0 || is_numeric)
 250                                 {
 251                                 pkey_type=TYPE_RSA;
 252                                 if(!is_numeric)
 253                                     p+=4;
 254                                 newkey= atoi(p);
 255                                 }
 256                         else
 257 #ifndef NO_DSA
 258                                 if (strncmp("dsa:",p,4) == 0)
 259                                 {
 260                                 X509 *xtmp=NULL;
 261                                 EVP_PKEY *dtmp;
 262
 263                                 pkey_type=TYPE_DSA;
 264                                 p+=4;
 265                                 if ((in=BIO_new_file(p,"r")) == NULL)
 266                                         {
 267                                         perror(p);
 268                                         goto end;
 269                                         }
 270                                 if ((dsa_params=PEM_read_bio_DSAparams(in,NULL,NULL,NULL)) == NULL)
 271                                         {
 272                                         ERR_clear_error();
 273                                         (void)BIO_reset(in);
 274                                         if ((xtmp=PEM_read_bio_X509(in,NULL,NULL,NULL)) == NULL)
 275                                                 {
 276                                                 BIO_printf(bio_err,"unable to load DSA parameters from file\n");
 277                                                 goto end;
 278                                                 }
 279
 280                                         dtmp=X509_get_pubkey(xtmp);
 281                                         if (dtmp->type == EVP_PKEY_DSA)
 282                                                 dsa_params=DSAparams_dup(dtmp->pkey.dsa);
 283                                         EVP_PKEY_free(dtmp);
 284                                         X509_free(xtmp);
 285                                         if (dsa_params == NULL)
 286                                                 {
 287                                                 BIO_printf(bio_err,"Certificate does not contain DSA parameters\n");
 288                                                 goto end;
 289                                                 }
 290                                         }
 291                                 BIO_free(in);
 292                                 newkey=BN_num_bits(dsa_params->p);
 293                                 in=NULL;
 294                                 }
 295                         else
 296 #endif
 297 #ifndef NO_DH
 298                                 if (strncmp("dh:",p,4) == 0)
 299                                 {
 300                                 pkey_type=TYPE_DH;
 301                                 p+=3;
 302                                 }
 303                         else
 304 #endif
 305                                 pkey_type=TYPE_RSA;
 306
 307                         newreq=1;
 308                         }
 309                 else if (strcmp(*argv,"-modulus") == 0)
 310                         modulus=1;
 311                 else if (strcmp(*argv,"-verify") == 0)
 312                         verify=1;
 313                 else if (strcmp(*argv,"-nodes") == 0)
 314                         nodes=1;
 315                 else if (strcmp(*argv,"-noout") == 0)
 316                         noout=1;
 317                 else if (strcmp(*argv,"-text") == 0)
 318                         text=1;
 319                 else if (strcmp(*argv,"-x509") == 0)
 320                         x509=1;
 321                 else if (strcmp(*argv,"-asn1-kludge") == 0)
 322                         kludge=1;
 323                 else if (strcmp(*argv,"-no-asn1-kludge") == 0)
 324                         kludge=0;
 325                 else if (strcmp(*argv,"-days") == 0)
 326                         {
 327                         if (--argc < 1) goto bad;
 328                         days= atoi(*(++argv));
 329                         if (days == 0) days=30;
 330                         }
 331                 else if ((md_alg=EVP_get_digestbyname(&((*argv)[1]))) != NULL)
 332                         {
 333                         /* ok */
 334                         digest=md_alg;
 335                         }
 336                 else if (strcmp(*argv,"-extensions") == 0)
 337                         {
 338                         if (--argc < 1) goto bad;
 339                         extensions = *(++argv);
 340                         }
 341                 else if (strcmp(*argv,"-reqexts") == 0)
 342                         {
 343                         if (--argc < 1) goto bad;
 344                         req_exts = *(++argv);
 345                         }
 346                 else
 347                         {
 348                         BIO_printf(bio_err,"unknown option %s\n",*argv);
 349                         badops=1;
 350                         break;
 351                         }
 352                 argc--;
 353                 argv++;
 354                 }
 355
 356         if (badops)
 357                 {
 358 bad:
 359                 BIO_printf(bio_err,"%s [options] <infile >outfile\n",prog);
 360                 BIO_printf(bio_err,"where options  are\n");
 361                 BIO_printf(bio_err," -inform arg    input format - DER or PEM\n");
 362                 BIO_printf(bio_err," -outform arg   output format - DER or PEM\n");
 363                 BIO_printf(bio_err," -in arg        input file\n");
 364                 BIO_printf(bio_err," -out arg       output file\n");
 365                 BIO_printf(bio_err," -text          text form of request\n");
 366                 BIO_printf(bio_err," -noout         do not output REQ\n");
 367                 BIO_printf(bio_err," -verify        verify signature on REQ\n");
 368                 BIO_printf(bio_err," -modulus       RSA modulus\n");
 369                 BIO_printf(bio_err," -nodes         don't encrypt the output key\n");
 370                 BIO_printf(bio_err," -key file  use the private key contained in file\n");
 371                 BIO_printf(bio_err," -keyform arg   key file format\n");
 372                 BIO_printf(bio_err," -keyout arg    file to send the key to\n");
 373                 BIO_printf(bio_err," -newkey rsa:bits generate a new RSA key of 'bits' in size\n");
 374                 BIO_printf(bio_err," -newkey dsa:file generate a new DSA key, parameters taken from CA in 'file'\n");
 375
 376                 BIO_printf(bio_err," -[digest]      Digest to sign with (md5, sha1, md2, mdc2)\n");
 377                 BIO_printf(bio_err," -config file   request template file.\n");
 378                 BIO_printf(bio_err," -new           new request.\n");
 379                 BIO_printf(bio_err," -x509          output a x509 structure instead of a cert. req.\n");
 380                 BIO_printf(bio_err," -days          number of days a x509 generated by -x509 is valid for.\n");
 381                 BIO_printf(bio_err," -asn1-kludge   Output the 'request' in a format that is wrong but some CA's\n");
 382                 BIO_printf(bio_err,"                have been reported as requiring\n");
 383                 BIO_printf(bio_err," -extensions .. specify certificate extension section (override value in config file)\n");
 384                 BIO_printf(bio_err," -reqexts ..    specify request extension section (override value in config file)\n");
 385                 goto end;
 386                 }
 387
 388         ERR_load_crypto_strings();
 389         if(!app_passwd(bio_err, passargin, passargout, &passin, &passout)) {
 390                 BIO_printf(bio_err, "Error getting passwords\n");
 391                 goto end;
 392         }
 393
 394 #ifndef MONOLITH /* else this has happened in openssl.c (global `config') */
 395         /* Lets load up our environment a little */
 396         p=getenv("OPENSSL_CONF");
 397         if (p == NULL)
 398                 p=getenv("SSLEAY_CONF");
 399         if (p == NULL)
 400                 {
 401                 strcpy(config_name,X509_get_default_cert_area());
 402 #ifndef VMS
 403                 strcat(config_name,"/");
 404 #endif
 405                 strcat(config_name,OPENSSL_CONF);
 406                 p=config_name;
 407                 }
 408         default_config_file=p;
 409         config=CONF_load(config,p,NULL);
 410 #endif
 411
 412         if (template != NULL)
 413                 {
 414                 long errline;
 415
 416                 BIO_printf(bio_err,"Using configuration from %s\n",template);
 417                 req_conf=CONF_load(NULL,template,&errline);
 418                 if (req_conf == NULL)
 419                         {
 420                         BIO_printf(bio_err,"error on line %ld of %s\n",errline,template);
 421                         goto end;
 422                         }
 423                 }
 424         else
 425                 {
 426                 req_conf=config;
 427                 BIO_printf(bio_err,"Using configuration from %s\n",
 428                         default_config_file);
 429                 if (req_conf == NULL)
 430                         {
 431                         BIO_printf(bio_err,"Unable to load config info\n");
 432                         }
 433                 }
 434
 435         if (req_conf != NULL)
 436                 {
 437                 p=CONF_get_string(req_conf,NULL,"oid_file");
 438                 if (p != NULL)
 439                         {
 440                         BIO *oid_bio;
 441
 442                         oid_bio=BIO_new_file(p,"r");
 443                         if (oid_bio == NULL)
 444                                 {
 445                                 /*
 446                                 BIO_printf(bio_err,"problems opening %s for extra oid's\n",p);
 447                                 ERR_print_errors(bio_err);
 448                                 */
 449                                 }
 450                         else
 451                                 {
 452                                 OBJ_create_objects(oid_bio);
 453                                 BIO_free(oid_bio);
 454                                 }
 455                         }
 456                 }
 457                 if(!add_oid_section(req_conf)) goto end;
 458
 459         if ((md_alg == NULL) &&
 460                 ((p=CONF_get_string(req_conf,SECTION,"default_md")) != NULL))
 461                 {
 462                 if ((md_alg=EVP_get_digestbyname(p)) != NULL)
 463                         digest=md_alg;
 464                 }
 465
 466         if(!extensions)
 467                 extensions = CONF_get_string(req_conf, SECTION, V3_EXTENSIONS);
 468         if(extensions) {
 469                 /* Check syntax of file */
 470                 X509V3_CTX ctx;
 471                 X509V3_set_ctx_test(&ctx);
 472                 X509V3_set_conf_lhash(&ctx, req_conf);
 473                 if(!X509V3_EXT_add_conf(req_conf, &ctx, extensions, NULL)) {
 474                         BIO_printf(bio_err,
 475                          "Error Loading extension section %s\n", extensions);
 476                         goto end;
 477                 }
 478         }
 479
 480         if(!passin)
 481                 passin = CONF_get_string(req_conf, SECTION, "input_password");
 482
 483         if(!passout)
 484                 passout = CONF_get_string(req_conf, SECTION, "output_password");
 485
 486         p = CONF_get_string(req_conf, SECTION, STRING_MASK);
 487
 488         if(p && !ASN1_STRING_set_default_mask_asc(p)) {
 489                 BIO_printf(bio_err, "Invalid global string mask setting %s\n", p);
 490                 goto end;
 491         }
 492
 493         if(!req_exts)
 494                 req_exts = CONF_get_string(req_conf, SECTION, REQ_EXTENSIONS);
 495         if(req_exts) {
 496                 /* Check syntax of file */
 497                 X509V3_CTX ctx;
 498                 X509V3_set_ctx_test(&ctx);
 499                 X509V3_set_conf_lhash(&ctx, req_conf);
 500                 if(!X509V3_EXT_add_conf(req_conf, &ctx, req_exts, NULL)) {
 501                         BIO_printf(bio_err,
 502                          "Error Loading request extension section %s\n",
 503                                                                 req_exts);
 504                         goto end;
 505                 }
 506         }
 507
 508         in=BIO_new(BIO_s_file());
 509         out=BIO_new(BIO_s_file());
 510         if ((in == NULL) || (out == NULL))
 511                 goto end;
 512
 513         if (keyfile != NULL)
 514                 {
 515                 if (BIO_read_filename(in,keyfile) <= 0)
 516                         {
 517                         perror(keyfile);
 518                         goto end;
 519                         }
 520
 521                 if (keyform == FORMAT_ASN1)
 522                         pkey=d2i_PrivateKey_bio(in,NULL);
 523                 else if (keyform == FORMAT_PEM)
 524                         {
 525                         pkey=PEM_read_bio_PrivateKey(in,NULL,NULL,passin);
 526                         }
 527                 else
 528                         {
 529                         BIO_printf(bio_err,"bad input format specified for X509 request\n");
 530                         goto end;
 531                         }
 532
 533                 if (pkey == NULL)
 534                         {
 535                         BIO_printf(bio_err,"unable to load Private key\n");
 536                         goto end;
 537                         }
 538                 }
 539
 540         if (newreq && (pkey == NULL))
 541                 {
 542                 char *randfile = CONF_get_string(req_conf,SECTION,"RANDFILE");
 543                 app_RAND_load_file(randfile, bio_err, 0);
 544
 545                 if (newkey <= 0)
 546                         {
 547                         newkey=(int)CONF_get_number(req_conf,SECTION,BITS);
 548                         if (newkey <= 0)
 549                                 newkey=DEFAULT_KEY_LENGTH;
 550                         }
 551
 552                 if (newkey < MIN_KEY_LENGTH)
 553                         {
 554                         BIO_printf(bio_err,"private key length is too short,\n");
 555                         BIO_printf(bio_err,"it needs to be at least %d bits, not %d\n",MIN_KEY_LENGTH,newkey);
 556                         goto end;
 557                         }
 558                 BIO_printf(bio_err,"Generating a %d bit %s private key\n",
 559                         newkey,(pkey_type == TYPE_RSA)?"RSA":"DSA");
 560
 561                 if ((pkey=EVP_PKEY_new()) == NULL) goto end;
 562
 563 #ifndef NO_RSA
 564                 if (pkey_type == TYPE_RSA)
 565                         {
 566                         if (!EVP_PKEY_assign_RSA(pkey,
 567                                 RSA_generate_key(newkey,0x10001,
 568                                         req_cb,bio_err)))
 569                                 goto end;
 570                         }
 571                 else
 572 #endif
 573 #ifndef NO_DSA
 574                         if (pkey_type == TYPE_DSA)
 575                         {
 576                         if (!DSA_generate_key(dsa_params)) goto end;
 577                         if (!EVP_PKEY_assign_DSA(pkey,dsa_params)) goto end;
 578                         dsa_params=NULL;
 579                         }
 580 #endif
 581
 582                 app_RAND_write_file(randfile, bio_err);
 583
 584                 if (pkey == NULL) goto end;
 585
 586                 if (keyout == NULL)
 587                         keyout=CONF_get_string(req_conf,SECTION,KEYFILE);
 588
 589                 if (keyout == NULL)
 590                         {
 591                         BIO_printf(bio_err,"writing new private key to stdout\n");
 592                         BIO_set_fp(out,stdout,BIO_NOCLOSE);
 593                         }
 594                 else
 595                         {
 596                         BIO_printf(bio_err,"writing new private key to '%s'\n",keyout);
 597                         if (BIO_write_filename(out,keyout) <= 0)
 598                                 {
 599                                 perror(keyout);
 600                                 goto end;
 601                                 }
 602                         }
 603
 604                 p=CONF_get_string(req_conf,SECTION,"encrypt_rsa_key");
 605                 if (p == NULL)
 606                         p=CONF_get_string(req_conf,SECTION,"encrypt_key");
 607                 if ((p != NULL) && (strcmp(p,"no") == 0))
 608                         cipher=NULL;
 609                 if (nodes) cipher=NULL;
 610
 611                 i=0;
 612 loop:
 613                 if (!PEM_write_bio_PrivateKey(out,pkey,cipher,
 614                         NULL,0,NULL,passout))
 615                         {
 616                         if ((ERR_GET_REASON(ERR_peek_error()) ==
 617                                 PEM_R_PROBLEMS_GETTING_PASSWORD) && (i < 3))
 618                                 {
 619                                 ERR_clear_error();
 620                                 i++;
 621                                 goto loop;
 622                                 }
 623                         goto end;
 624                         }
 625                 BIO_printf(bio_err,"-----\n");
 626                 }
 627
 628         if (!newreq)
 629                 {
 630                 /* Since we are using a pre-existing certificate
 631                  * request, the kludge 'format' info should not be
 632                  * changed. */
 633                 kludge= -1;
 634                 if (infile == NULL)
 635                         BIO_set_fp(in,stdin,BIO_NOCLOSE);
 636                 else
 637                         {
 638                         if (BIO_read_filename(in,infile) <= 0)
 639                                 {
 640                                 perror(infile);
 641                                 goto end;
 642                                 }
 643                         }
 644
 645                 if      (informat == FORMAT_ASN1)
 646                         req=d2i_X509_REQ_bio(in,NULL);
 647                 else if (informat == FORMAT_PEM)
 648                         req=PEM_read_bio_X509_REQ(in,NULL,NULL,NULL);
 649                 else
 650                         {
 651                         BIO_printf(bio_err,"bad input format specified for X509 request\n");
 652                         goto end;
 653                         }
 654                 if (req == NULL)
 655                         {
 656                         BIO_printf(bio_err,"unable to load X509 request\n");
 657                         goto end;
 658                         }
 659                 }
 660
 661         if (newreq || x509)
 662                 {
 663 #ifndef NO_DSA
 664                 if (pkey->type == EVP_PKEY_DSA)
 665                         digest=EVP_dss1();
 666 #endif
 667
 668                 if (pkey == NULL)
 669                         {
 670                         BIO_printf(bio_err,"you need to specify a private key\n");
 671                         goto end;
 672                         }
 673                 if (req == NULL)
 674                         {
 675                         req=X509_REQ_new();
 676                         if (req == NULL)
 677                                 {
 678                                 goto end;
 679                                 }
 680
 681                         i=make_REQ(req,pkey,!x509);
 682                         if (kludge >= 0)
 683                                 req->req_info->req_kludge=kludge;
 684                         if (!i)
 685                                 {
 686                                 BIO_printf(bio_err,"problems making Certificate Request\n");
 687                                 goto end;
 688                                 }
 689                         }
 690                 if (x509)
 691                         {
 692                         EVP_PKEY *tmppkey;
 693                         X509V3_CTX ext_ctx;
 694                         if ((x509ss=X509_new()) == NULL) goto end;
 695
 696                         /* Set version to V3 */
 697                         if(!X509_set_version(x509ss, 2)) goto end;
 698                         ASN1_INTEGER_set(X509_get_serialNumber(x509ss),0L);
 699
 700                         X509_set_issuer_name(x509ss,
 701                                 X509_REQ_get_subject_name(req));
 702                         X509_gmtime_adj(X509_get_notBefore(x509ss),0);
 703                         X509_gmtime_adj(X509_get_notAfter(x509ss),
 704                                 (long)60*60*24*days);
 705                         X509_set_subject_name(x509ss,
 706                                 X509_REQ_get_subject_name(req));
 707                         tmppkey = X509_REQ_get_pubkey(req);
 708                         X509_set_pubkey(x509ss,tmppkey);
 709                         EVP_PKEY_free(tmppkey);
 710
 711                         /* Set up V3 context struct */
 712
 713                         X509V3_set_ctx(&ext_ctx, x509ss, x509ss, NULL, NULL, 0);
 714                         X509V3_set_conf_lhash(&ext_ctx, req_conf);
 715
 716                         /* Add extensions */
 717                         if(extensions && !X509V3_EXT_add_conf(req_conf,
 718                                         &ext_ctx, extensions, x509ss))
 719                             {
 720                             BIO_printf(bio_err,
 721                                        "Error Loading extension section %s\n",
 722                                        extensions);
 723                             goto end;
 724                             }
 725
 726                         if (!(i=X509_sign(x509ss,pkey,digest)))
 727                                 goto end;
 728                         }
 729                 else
 730                         {
 731                         X509V3_CTX ext_ctx;
 732
 733                         /* Set up V3 context struct */
 734
 735                         X509V3_set_ctx(&ext_ctx, NULL, NULL, req, NULL, 0);
 736                         X509V3_set_conf_lhash(&ext_ctx, req_conf);
 737
 738                         /* Add extensions */
 739                         if(req_exts && !X509V3_EXT_REQ_add_conf(req_conf,
 740                                         &ext_ctx, req_exts, req))
 741                             {
 742                             BIO_printf(bio_err,
 743                                        "Error Loading extension section %s\n",
 744                                        req_exts);
 745                             goto end;
 746                             }
 747                         if (!(i=X509_REQ_sign(req,pkey,digest)))
 748                                 goto end;
 749                         }
 750                 }
 751
 752         if (verify && !x509)
 753                 {
 754                 int tmp=0;
 755
 756                 if (pkey == NULL)
 757                         {
 758                         pkey=X509_REQ_get_pubkey(req);
 759                         tmp=1;
 760                         if (pkey == NULL) goto end;
 761                         }
 762
 763                 i=X509_REQ_verify(req,pkey);
 764                 if (tmp) {
 765                         EVP_PKEY_free(pkey);
 766                         pkey=NULL;
 767                 }
 768
 769                 if (i < 0)
 770                         {
 771                         goto end;
 772                         }
 773                 else if (i == 0)
 774                         {
 775                         BIO_printf(bio_err,"verify failure\n");
 776                         }
 777                 else /* if (i > 0) */
 778                         BIO_printf(bio_err,"verify OK\n");
 779                 }
 780
 781         if (noout && !text && !modulus)
 782                 {
 783                 ex=0;
 784                 goto end;
 785                 }
 786
 787         if (outfile == NULL)
 788                 BIO_set_fp(out,stdout,BIO_NOCLOSE);
 789         else
 790                 {
 791                 if ((keyout != NULL) && (strcmp(outfile,keyout) == 0))
 792                         i=(int)BIO_append_filename(out,outfile);
 793                 else
 794                         i=(int)BIO_write_filename(out,outfile);
 795                 if (!i)
 796                         {
 797                         perror(outfile);
 798                         goto end;
 799                         }
 800                 }
 801
 802         if (text)
 803                 {
 804                 if (x509)
 805                         X509_print(out,x509ss);
 806                 else
 807                         X509_REQ_print(out,req);
 808                 }
 809
 810         if (modulus)
 811                 {
 812                 EVP_PKEY *pubkey;
 813
 814                 if (x509)
 815                         pubkey=X509_get_pubkey(x509ss);
 816                 else
 817                         pubkey=X509_REQ_get_pubkey(req);
 818                 if (pubkey == NULL)
 819                         {
 820                         fprintf(stdout,"Modulus=unavailable\n");
 821                         goto end;
 822                         }
 823                 fprintf(stdout,"Modulus=");
 824 #ifndef NO_RSA
 825                 if (pubkey->type == EVP_PKEY_RSA)
 826                         BN_print(out,pubkey->pkey.rsa->n);
 827                 else
 828 #endif
 829                         fprintf(stdout,"Wrong Algorithm type");
 830                 fprintf(stdout,"\n");
 831                 }
 832
 833         if (!noout && !x509)
 834                 {
 835                 if      (outformat == FORMAT_ASN1)
 836                         i=i2d_X509_REQ_bio(out,req);
 837                 else if (outformat == FORMAT_PEM)
 838                         i=PEM_write_bio_X509_REQ(out,req);
 839                 else    {
 840                         BIO_printf(bio_err,"bad output format specified for outfile\n");
 841                         goto end;
 842                         }
 843                 if (!i)
 844                         {
 845                         BIO_printf(bio_err,"unable to write X509 request\n");
 846                         goto end;
 847                         }
 848                 }
 849         if (!noout && x509 && (x509ss != NULL))
 850                 {
 851                 if      (outformat == FORMAT_ASN1)
 852                         i=i2d_X509_bio(out,x509ss);
 853                 else if (outformat == FORMAT_PEM)
 854                         i=PEM_write_bio_X509(out,x509ss);
 855                 else    {
 856                         BIO_printf(bio_err,"bad output format specified for outfile\n");
 857                         goto end;
 858                         }
 859                 if (!i)
 860                         {
 861                         BIO_printf(bio_err,"unable to write X509 certificate\n");
 862                         goto end;
 863                         }
 864                 }
 865         ex=0;
 866 end:
 867         if (ex)
 868                 {
 869                 ERR_print_errors(bio_err);
 870                 }
 871         if ((req_conf != NULL) && (req_conf != config)) CONF_free(req_conf);
 872         BIO_free(in);
 873         BIO_free(out);
 874         EVP_PKEY_free(pkey);
 875         X509_REQ_free(req);
 876         X509_free(x509ss);
 877         if(passin) Free(passin);
 878         if(passout) Free(passout);
 879         OBJ_cleanup();
 880 #ifndef NO_DSA
 881         if (dsa_params != NULL) DSA_free(dsa_params);
 882 #endif
 883         EXIT(ex);
 884         }
 885
 886 static int make_REQ(X509_REQ *req, EVP_PKEY *pkey, int attribs)
 887         {
 888         int ret=0,i;
 889         char no_prompt = 0;
 890         STACK_OF(CONF_VALUE) *dn_sk, *attr_sk = NULL;
 891         char *tmp, *dn_sect,*attr_sect;
 892
 893         tmp=CONF_get_string(req_conf,SECTION,PROMPT);
 894         if((tmp != NULL) && !strcmp(tmp, "no")) no_prompt = 1;
 895
 896         dn_sect=CONF_get_string(req_conf,SECTION,DISTINGUISHED_NAME);
 897         if (dn_sect == NULL)
 898                 {
 899                 BIO_printf(bio_err,"unable to find '%s' in config\n",
 900                         DISTINGUISHED_NAME);
 901                 goto err;
 902                 }
 903         dn_sk=CONF_get_section(req_conf,dn_sect);
 904         if (dn_sk == NULL)
 905                 {
 906                 BIO_printf(bio_err,"unable to get '%s' section\n",dn_sect);
 907                 goto err;
 908                 }
 909
 910         attr_sect=CONF_get_string(req_conf,SECTION,ATTRIBUTES);
 911         if (attr_sect == NULL)
 912                 attr_sk=NULL;
 913         else
 914                 {
 915                 attr_sk=CONF_get_section(req_conf,attr_sect);
 916                 if (attr_sk == NULL)
 917                         {
 918                         BIO_printf(bio_err,"unable to get '%s' section\n",attr_sect);
 919                         goto err;
 920                         }
 921                 }
 922
 923         /* setup version number */
 924         if (!X509_REQ_set_version(req,0L)) goto err; /* version 1 */
 925
 926         if(no_prompt) i = auto_info(req, dn_sk, attr_sk, attribs);
 927         else i = prompt_info(req, dn_sk, dn_sect, attr_sk, attr_sect, attribs);
 928         if(!i) goto err;
 929
 930         X509_REQ_set_pubkey(req,pkey);
 931
 932         ret=1;
 933 err:
 934         return(ret);
 935         }
 936
 937
 938 static int prompt_info(X509_REQ *req,
 939                 STACK_OF(CONF_VALUE) *dn_sk, char *dn_sect,
 940                 STACK_OF(CONF_VALUE) *attr_sk, char *attr_sect, int attribs)
 941         {
 942         int i;
 943         char *p,*q;
 944         char buf[100];
 945         int nid,min,max;
 946         char *type,*def,*value;
 947         CONF_VALUE *v;
 948         X509_NAME *subj;
 949         subj = X509_REQ_get_subject_name(req);
 950         BIO_printf(bio_err,"You are about to be asked to enter information that will be incorporated\n");
 951         BIO_printf(bio_err,"into your certificate request.\n");
 952         BIO_printf(bio_err,"What you are about to enter is what is called a Distinguished Name or a DN.\n");
 953         BIO_printf(bio_err,"There are quite a few fields but you can leave some blank\n");
 954         BIO_printf(bio_err,"For some fields there will be a default value,\n");
 955         BIO_printf(bio_err,"If you enter '.', the field will be left blank.\n");
 956         BIO_printf(bio_err,"-----\n");
 957
 958
 959         if (sk_CONF_VALUE_num(dn_sk))
 960                 {
 961                 i= -1;
 962 start:          for (;;)
 963                         {
 964                         i++;
 965                         if (sk_CONF_VALUE_num(dn_sk) <= i) break;
 966
 967                         v=sk_CONF_VALUE_value(dn_sk,i);
 968                         p=q=NULL;
 969                         type=v->name;
 970                         if(!check_end(type,"_min") || !check_end(type,"_max") ||
 971                                 !check_end(type,"_default") ||
 972                                          !check_end(type,"_value")) continue;
 973                         /* Skip past any leading X. X: X, etc to allow for
 974                          * multiple instances
 975                          */
 976                         for(p = v->name; *p ; p++)
 977                                 if ((*p == ':') || (*p == ',') ||
 978                                                          (*p == '.')) {
 979                                         p++;
 980                                         if(*p) type = p;
 981                                         break;
 982                                 }
 983                         /* If OBJ not recognised ignore it */
 984                         if ((nid=OBJ_txt2nid(type)) == NID_undef) goto start;
 985                         sprintf(buf,"%s_default",v->name);
 986                         if ((def=CONF_get_string(req_conf,dn_sect,buf)) == NULL)
 987                                 def="";
 988
 989                         sprintf(buf,"%s_value",v->name);
 990                         if ((value=CONF_get_string(req_conf,dn_sect,buf)) == NULL)
 991                                 value=NULL;
 992
 993                         sprintf(buf,"%s_min",v->name);
 994                         min=(int)CONF_get_number(req_conf,dn_sect,buf);
 995
 996                         sprintf(buf,"%s_max",v->name);
 997                         max=(int)CONF_get_number(req_conf,dn_sect,buf);
 998
 999                         if (!add_DN_object(subj,v->value,def,value,nid,
1000                                 min,max))
1001                                 return 0;
1002                         }
1003                 if (X509_NAME_entry_count(subj) == 0)
1004                         {
1005                         BIO_printf(bio_err,"error, no objects specified in config file\n");
1006                         return 0;
1007                         }
1008
1009                 if (attribs)
1010                         {
1011                         if ((attr_sk != NULL) && (sk_CONF_VALUE_num(attr_sk) > 0))
1012                                 {
1013                                 BIO_printf(bio_err,"\nPlease enter the following 'extra' attributes\n");
1014                                 BIO_printf(bio_err,"to be sent with your certificate request\n");
1015                                 }
1016
1017                         i= -1;
1018 start2:                 for (;;)
1019                                 {
1020                                 i++;
1021                                 if ((attr_sk == NULL) ||
1022                                             (sk_CONF_VALUE_num(attr_sk) <= i))
1023                                         break;
1024
1025                                 v=sk_CONF_VALUE_value(attr_sk,i);
1026                                 type=v->name;
1027                                 if ((nid=OBJ_txt2nid(type)) == NID_undef)
1028                                         goto start2;
1029
1030                                 sprintf(buf,"%s_default",type);
1031                                 if ((def=CONF_get_string(req_conf,attr_sect,buf))
1032                                         == NULL)
1033                                         def="";
1034
1035                                 sprintf(buf,"%s_value",type);
1036                                 if ((value=CONF_get_string(req_conf,attr_sect,buf))
1037                                         == NULL)
1038                                         value=NULL;
1039
1040                                 sprintf(buf,"%s_min",type);
1041                                 min=(int)CONF_get_number(req_conf,attr_sect,buf);
1042
1043                                 sprintf(buf,"%s_max",type);
1044                                 max=(int)CONF_get_number(req_conf,attr_sect,buf);
1045
1046                                 if (!add_attribute_object(req,
1047                                         v->value,def,value,nid,min,max))
1048                                         return 0;
1049                                 }
1050                         }
1051                 }
1052         else
1053                 {
1054                 BIO_printf(bio_err,"No template, please set one up.\n");
1055                 return 0;
1056                 }
1057
1058         return 1;
1059
1060         }
1061
1062 static int auto_info(X509_REQ *req, STACK_OF(CONF_VALUE) *dn_sk,
1063                         STACK_OF(CONF_VALUE) *attr_sk, int attribs)
1064         {
1065         int i;
1066         char *p,*q;
1067         char *type;
1068         CONF_VALUE *v;
1069         X509_NAME *subj;
1070
1071         subj = X509_REQ_get_subject_name(req);
1072
1073         for (i = 0; i < sk_CONF_VALUE_num(dn_sk); i++)
1074                 {
1075                 v=sk_CONF_VALUE_value(dn_sk,i);
1076                 p=q=NULL;
1077                 type=v->name;
1078                 /* Skip past any leading X. X: X, etc to allow for
1079                  * multiple instances
1080                  */
1081                 for(p = v->name; *p ; p++)
1082                         if ((*p == ':') || (*p == ',') || (*p == '.')) {
1083                                 p++;
1084                                 if(*p) type = p;
1085                                 break;
1086                         }
1087                 if (!X509_NAME_add_entry_by_txt(subj,type, MBSTRING_ASC,
1088                                 (unsigned char *) v->value,-1,-1,0)) return 0;
1089
1090                 }
1091
1092                 if (!X509_NAME_entry_count(subj))
1093                         {
1094                         BIO_printf(bio_err,"error, no objects specified in config file\n");
1095                         return 0;
1096                         }
1097                 if (attribs)
1098                         {
1099                         for (i = 0; i < sk_CONF_VALUE_num(attr_sk); i++)
1100                                 {
1101                                 v=sk_CONF_VALUE_value(attr_sk,i);
1102                                 if(!X509_REQ_radd_attr_by_txt(req, v->name, MBSTRING_ASC,
1103                                         (unsigned char *)v->value, -1)) return 0;
1104                                 }
1105                         }
1106         return 1;
1107         }
1108
1109
1110 static int add_DN_object(X509_NAME *n, char *text, char *def, char *value,
1111              int nid, int min, int max)
1112         {
1113         int i,ret=0;
1114         MS_STATIC char buf[1024];
1115 start:
1116         BIO_printf(bio_err,"%s [%s]:",text,def);
1117         (void)BIO_flush(bio_err);
1118         if (value != NULL)
1119                 {
1120                 strcpy(buf,value);
1121                 strcat(buf,"\n");
1122                 BIO_printf(bio_err,"%s\n",value);
1123                 }
1124         else
1125                 {
1126                 buf[0]='\0';
1127                 fgets(buf,1024,stdin);
1128                 }
1129
1130         if (buf[0] == '\0') return(0);
1131         else if (buf[0] == '\n')
1132                 {
1133                 if ((def == NULL) || (def[0] == '\0'))
1134                         return(1);
1135                 strcpy(buf,def);
1136                 strcat(buf,"\n");
1137                 }
1138         else if ((buf[0] == '.') && (buf[1] == '\n')) return(1);
1139
1140         i=strlen(buf);
1141         if (buf[i-1] != '\n')
1142                 {
1143                 BIO_printf(bio_err,"weird input :-(\n");
1144                 return(0);
1145                 }
1146         buf[--i]='\0';
1147
1148 #ifdef CHARSET_EBCDIC
1149         ebcdic2ascii(buf, buf, i);
1150 #endif
1151         if(!req_check_len(i, min, max)) goto start;
1152         if (!X509_NAME_add_entry_by_NID(n,nid, MBSTRING_ASC,
1153                                 (unsigned char *) buf, -1,-1,0)) goto err;
1154         ret=1;
1155 err:
1156         return(ret);
1157         }
1158
1159 static int add_attribute_object(X509_REQ *req, char *text,
1160                                 char *def, char *value, int nid, int min,
1161                                 int max)
1162         {
1163         int i;
1164         static char buf[1024];
1165
1166 start:
1167         BIO_printf(bio_err,"%s [%s]:",text,def);
1168         (void)BIO_flush(bio_err);
1169         if (value != NULL)
1170                 {
1171                 strcpy(buf,value);
1172                 strcat(buf,"\n");
1173                 BIO_printf(bio_err,"%s\n",value);
1174                 }
1175         else
1176                 {
1177                 buf[0]='\0';
1178                 fgets(buf,1024,stdin);
1179                 }
1180
1181         if (buf[0] == '\0') return(0);
1182         else if (buf[0] == '\n')
1183                 {
1184                 if ((def == NULL) || (def[0] == '\0'))
1185                         return(1);
1186                 strcpy(buf,def);
1187                 strcat(buf,"\n");
1188                 }
1189         else if ((buf[0] == '.') && (buf[1] == '\n')) return(1);
1190
1191         i=strlen(buf);
1192         if (buf[i-1] != '\n')
1193                 {
1194                 BIO_printf(bio_err,"weird input :-(\n");
1195                 return(0);
1196                 }
1197         buf[--i]='\0';
1198         if(!req_check_len(i, min, max)) goto start;
1199
1200         if(!X509_REQ_radd_attr_by_NID(req, nid, MBSTRING_ASC,
1201                                         (unsigned char *)buf, -1)) {
1202                 BIO_printf(bio_err, "Error adding attribute\n");
1203                 ERR_print_errors(bio_err);
1204                 goto err;
1205         }
1206
1207         return(1);
1208 err:
1209         return(0);
1210         }
1211
1212 #ifndef NO_RSA
1213 static void MS_CALLBACK req_cb(int p, int n, void *arg)
1214         {
1215         char c='*';
1216
1217         if (p == 0) c='.';
1218         if (p == 1) c='+';
1219         if (p == 2) c='*';
1220         if (p == 3) c='\n';
1221         BIO_write((BIO *)arg,&c,1);
1222         (void)BIO_flush((BIO *)arg);
1223 #ifdef LINT
1224         p=n;
1225 #endif
1226         }
1227 #endif
1228
1229 static int req_check_len(int len, int min, int max)
1230         {
1231         if (len < min)
1232                 {
1233                 BIO_printf(bio_err,"string is too short, it needs to be at least %d bytes long\n",min);
1234                 return(0);
1235                 }
1236         if ((max != 0) && (len > max))
1237                 {
1238                 BIO_printf(bio_err,"string is too long, it needs to be less than  %d bytes long\n",max);
1239                 return(0);
1240                 }
1241         return(1);
1242         }
1243
1244 /* Check if the end of a string matches 'end' */
1245 static int check_end(char *str, char *end)
1246 {
1247         int elen, slen;
1248         char *tmp;
1249         elen = strlen(end);
1250         slen = strlen(str);
1251         if(elen > slen) return 1;
1252         tmp = str + slen - elen;
1253         return strcmp(tmp, end);
1254 }
1255
1256 static int add_oid_section(LHASH *conf)
1257 {
1258         char *p;
1259         STACK_OF(CONF_VALUE) *sktmp;
1260         CONF_VALUE *cnf;
1261         int i;
1262         if(!(p=CONF_get_string(conf,NULL,"oid_section"))) return 1;
1263         if(!(sktmp = CONF_get_section(conf, p))) {
1264                 BIO_printf(bio_err, "problem loading oid section %s\n", p);
1265                 return 0;
1266         }
1267         for(i = 0; i < sk_CONF_VALUE_num(sktmp); i++) {
1268                 cnf = sk_CONF_VALUE_value(sktmp, i);
1269                 if(OBJ_create(cnf->value, cnf->name, cnf->name) == NID_undef) {
1270                         BIO_printf(bio_err, "problem creating object %s=%s\n",
1271                                                          cnf->name, cnf->value);
1272                         return 0;
1273                 }
1274         }
1275         return 1;
1276 }