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 DISTINGUISHED_NAME      "distinguished_name"
  82 #define ATTRIBUTES      "attributes"
  83 #define V3_EXTENSIONS   "x509_extensions"
  84 #define REQ_EXTENSIONS  "req_extensions"
  85 #define DIRSTRING_TYPE  "dirstring_type"
  86
  87 #define DEFAULT_KEY_LENGTH      512
  88 #define MIN_KEY_LENGTH          384
  89
  90 #undef PROG
  91 #define PROG    req_main
  92
  93 /* -inform arg  - input format - default PEM (one of DER, TXT or PEM)
  94  * -outform arg - output format - default PEM
  95  * -in arg      - input file - default stdin
  96  * -out arg     - output file - default stdout
  97  * -verify      - check request signature
  98  * -noout       - don't print stuff out.
  99  * -text        - print out human readable text.
 100  * -nodes       - no des encryption
 101  * -config file - Load configuration file.
 102  * -key file    - make a request using key in file (or use it for verification).
 103  * -keyform     - key file format.
 104  * -newkey      - make a key and a request.
 105  * -modulus     - print RSA modulus.
 106  * -x509        - output a self signed X509 structure instead.
 107  * -asn1-kludge - output new certificate request in a format that some CA's
 108  *                require.  This format is wrong
 109  */
 110
 111 static int make_REQ(X509_REQ *req,EVP_PKEY *pkey,int attribs);
 112 static int add_attribute_object(STACK_OF(X509_ATTRIBUTE) *n, char *text,
 113                                 char *def, char *value, int nid, int min,
 114                                 int max);
 115 static int add_DN_object(X509_NAME *n, char *text, char *def, char *value,
 116         int nid,int min,int max);
 117 static void MS_CALLBACK req_cb(int p,int n,void *arg);
 118 static int req_fix_data(int nid,int *type,int len,int min,int max);
 119 static int check_end(char *str, char *end);
 120 static int add_oid_section(LHASH *conf);
 121 #ifndef MONOLITH
 122 static char *default_config_file=NULL;
 123 static LHASH *config=NULL;
 124 #endif
 125 static LHASH *req_conf=NULL;
 126
 127 #define TYPE_RSA        1
 128 #define TYPE_DSA        2
 129 #define TYPE_DH         3
 130
 131 int MAIN(int argc, char **argv)
 132         {
 133 #ifndef NO_DSA
 134         DSA *dsa_params=NULL;
 135 #endif
 136         int ex=1,x509=0,days=30;
 137         X509 *x509ss=NULL;
 138         X509_REQ *req=NULL;
 139         EVP_PKEY *pkey=NULL;
 140         int i,badops=0,newreq=0,newkey= -1,pkey_type=0;
 141         BIO *in=NULL,*out=NULL;
 142         int informat,outformat,verify=0,noout=0,text=0,keyform=FORMAT_PEM;
 143         int nodes=0,kludge=0;
 144         char *infile,*outfile,*prog,*keyfile=NULL,*template=NULL,*keyout=NULL;
 145         char *extensions = NULL;
 146         char *req_exts = NULL;
 147         EVP_CIPHER *cipher=NULL;
 148         int modulus=0;
 149         char *passin = NULL, *passout = NULL;
 150         char *p;
 151         const EVP_MD *md_alg=NULL,*digest=EVP_md5();
 152 #ifndef MONOLITH
 153         MS_STATIC char config_name[256];
 154 #endif
 155
 156         req_conf = NULL;
 157 #ifndef NO_DES
 158         cipher=EVP_des_ede3_cbc();
 159 #endif
 160         apps_startup();
 161
 162         if (bio_err == NULL)
 163                 if ((bio_err=BIO_new(BIO_s_file())) != NULL)
 164                         BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);
 165
 166         infile=NULL;
 167         outfile=NULL;
 168         informat=FORMAT_PEM;
 169         outformat=FORMAT_PEM;
 170
 171         prog=argv[0];
 172         argc--;
 173         argv++;
 174         while (argc >= 1)
 175                 {
 176                 if      (strcmp(*argv,"-inform") == 0)
 177                         {
 178                         if (--argc < 1) goto bad;
 179                         informat=str2fmt(*(++argv));
 180                         }
 181                 else if (strcmp(*argv,"-outform") == 0)
 182                         {
 183                         if (--argc < 1) goto bad;
 184                         outformat=str2fmt(*(++argv));
 185                         }
 186                 else if (strcmp(*argv,"-key") == 0)
 187                         {
 188                         if (--argc < 1) goto bad;
 189                         keyfile= *(++argv);
 190                         }
 191                 else if (strcmp(*argv,"-new") == 0)
 192                         {
 193                         pkey_type=TYPE_RSA;
 194                         newreq=1;
 195                         }
 196                 else if (strcmp(*argv,"-config") == 0)
 197                         {
 198                         if (--argc < 1) goto bad;
 199                         template= *(++argv);
 200                         }
 201                 else if (strcmp(*argv,"-keyform") == 0)
 202                         {
 203                         if (--argc < 1) goto bad;
 204                         keyform=str2fmt(*(++argv));
 205                         }
 206                 else if (strcmp(*argv,"-in") == 0)
 207                         {
 208                         if (--argc < 1) goto bad;
 209                         infile= *(++argv);
 210                         }
 211                 else if (strcmp(*argv,"-out") == 0)
 212                         {
 213                         if (--argc < 1) goto bad;
 214                         outfile= *(++argv);
 215                         }
 216                 else if (strcmp(*argv,"-keyout") == 0)
 217                         {
 218                         if (--argc < 1) goto bad;
 219                         keyout= *(++argv);
 220                         }
 221                 else if (strcmp(*argv,"-passin") == 0)
 222                         {
 223                         if (--argc < 1) goto bad;
 224                         passin= *(++argv);
 225                         }
 226                 else if (strcmp(*argv,"-envpassin") == 0)
 227                         {
 228                         if (--argc < 1) goto bad;
 229                                 if(!(passin= getenv(*(++argv))))
 230                                 {
 231                                 BIO_printf(bio_err,
 232                                  "Can't read environment variable %s\n",
 233                                                                 *argv);
 234                                 badops = 1;
 235                                 }
 236                         }
 237                 else if (strcmp(*argv,"-envpassout") == 0)
 238                         {
 239                         if (--argc < 1) goto bad;
 240                                 if(!(passout= getenv(*(++argv))))
 241                                 {
 242                                 BIO_printf(bio_err,
 243                                  "Can't read environment variable %s\n",
 244                                                                 *argv);
 245                                 badops = 1;
 246                                 }
 247                         argv++;
 248                         }
 249                 else if (strcmp(*argv,"-passout") == 0)
 250                         {
 251                         if (--argc < 1) goto bad;
 252                         passout= *(++argv);
 253                         }
 254                 else if (strcmp(*argv,"-newkey") == 0)
 255                         {
 256                         int is_numeric;
 257
 258                         if (--argc < 1) goto bad;
 259                         p= *(++argv);
 260                         is_numeric = p[0] >= '0' && p[0] <= '9';
 261                         if (strncmp("rsa:",p,4) == 0 || is_numeric)
 262                                 {
 263                                 pkey_type=TYPE_RSA;
 264                                 if(!is_numeric)
 265                                     p+=4;
 266                                 newkey= atoi(p);
 267                                 }
 268                         else
 269 #ifndef NO_DSA
 270                                 if (strncmp("dsa:",p,4) == 0)
 271                                 {
 272                                 X509 *xtmp=NULL;
 273                                 EVP_PKEY *dtmp;
 274
 275                                 pkey_type=TYPE_DSA;
 276                                 p+=4;
 277                                 if ((in=BIO_new_file(p,"r")) == NULL)
 278                                         {
 279                                         perror(p);
 280                                         goto end;
 281                                         }
 282                                 if ((dsa_params=PEM_read_bio_DSAparams(in,NULL,NULL,NULL)) == NULL)
 283                                         {
 284                                         ERR_clear_error();
 285                                         (void)BIO_reset(in);
 286                                         if ((xtmp=PEM_read_bio_X509(in,NULL,NULL,NULL)) == NULL)
 287                                                 {
 288                                                 BIO_printf(bio_err,"unable to load DSA parameters from file\n");
 289                                                 goto end;
 290                                                 }
 291
 292                                         dtmp=X509_get_pubkey(xtmp);
 293                                         if (dtmp->type == EVP_PKEY_DSA)
 294                                                 dsa_params=DSAparams_dup(dtmp->pkey.dsa);
 295                                         EVP_PKEY_free(dtmp);
 296                                         X509_free(xtmp);
 297                                         if (dsa_params == NULL)
 298                                                 {
 299                                                 BIO_printf(bio_err,"Certificate does not contain DSA parameters\n");
 300                                                 goto end;
 301                                                 }
 302                                         }
 303                                 BIO_free(in);
 304                                 newkey=BN_num_bits(dsa_params->p);
 305                                 in=NULL;
 306                                 }
 307                         else
 308 #endif
 309 #ifndef NO_DH
 310                                 if (strncmp("dh:",p,4) == 0)
 311                                 {
 312                                 pkey_type=TYPE_DH;
 313                                 p+=3;
 314                                 }
 315                         else
 316 #endif
 317                                 pkey_type=TYPE_RSA;
 318
 319                         newreq=1;
 320                         }
 321                 else if (strcmp(*argv,"-modulus") == 0)
 322                         modulus=1;
 323                 else if (strcmp(*argv,"-verify") == 0)
 324                         verify=1;
 325                 else if (strcmp(*argv,"-nodes") == 0)
 326                         nodes=1;
 327                 else if (strcmp(*argv,"-noout") == 0)
 328                         noout=1;
 329                 else if (strcmp(*argv,"-text") == 0)
 330                         text=1;
 331                 else if (strcmp(*argv,"-x509") == 0)
 332                         x509=1;
 333                 else if (strcmp(*argv,"-asn1-kludge") == 0)
 334                         kludge=1;
 335                 else if (strcmp(*argv,"-no-asn1-kludge") == 0)
 336                         kludge=0;
 337                 else if (strcmp(*argv,"-days") == 0)
 338                         {
 339                         if (--argc < 1) goto bad;
 340                         days= atoi(*(++argv));
 341                         if (days == 0) days=30;
 342                         }
 343                 else if ((md_alg=EVP_get_digestbyname(&((*argv)[1]))) != NULL)
 344                         {
 345                         /* ok */
 346                         digest=md_alg;
 347                         }
 348                 else if (strcmp(*argv,"-extensions") == 0)
 349                         {
 350                         if (--argc < 1) goto bad;
 351                         extensions = *(++argv);
 352                         }
 353                 else if (strcmp(*argv,"-reqexts") == 0)
 354                         {
 355                         if (--argc < 1) goto bad;
 356                         req_exts = *(++argv);
 357                         }
 358                 else
 359                         {
 360                         BIO_printf(bio_err,"unknown option %s\n",*argv);
 361                         badops=1;
 362                         break;
 363                         }
 364                 argc--;
 365                 argv++;
 366                 }
 367
 368         if (badops)
 369                 {
 370 bad:
 371                 BIO_printf(bio_err,"%s [options] <infile >outfile\n",prog);
 372                 BIO_printf(bio_err,"where options  are\n");
 373                 BIO_printf(bio_err," -inform arg    input format - one of DER TXT PEM\n");
 374                 BIO_printf(bio_err," -outform arg   output format - one of DER TXT PEM\n");
 375                 BIO_printf(bio_err," -in arg        input file\n");
 376                 BIO_printf(bio_err," -out arg       output file\n");
 377                 BIO_printf(bio_err," -text          text form of request\n");
 378                 BIO_printf(bio_err," -noout         do not output REQ\n");
 379                 BIO_printf(bio_err," -verify        verify signature on REQ\n");
 380                 BIO_printf(bio_err," -modulus       RSA modulus\n");
 381                 BIO_printf(bio_err," -nodes         don't encrypt the output key\n");
 382                 BIO_printf(bio_err," -key file  use the private key contained in file\n");
 383                 BIO_printf(bio_err," -keyform arg   key file format\n");
 384                 BIO_printf(bio_err," -keyout arg    file to send the key to\n");
 385                 BIO_printf(bio_err," -newkey rsa:bits generate a new RSA key of 'bits' in size\n");
 386                 BIO_printf(bio_err," -newkey dsa:file generate a new DSA key, parameters taken from CA in 'file'\n");
 387
 388                 BIO_printf(bio_err," -[digest]      Digest to sign with (md5, sha1, md2, mdc2)\n");
 389                 BIO_printf(bio_err," -config file   request template file.\n");
 390                 BIO_printf(bio_err," -new           new request.\n");
 391                 BIO_printf(bio_err," -x509          output a x509 structure instead of a cert. req.\n");
 392                 BIO_printf(bio_err," -days          number of days a x509 generated by -x509 is valid for.\n");
 393                 BIO_printf(bio_err," -asn1-kludge   Output the 'request' in a format that is wrong but some CA's\n");
 394                 BIO_printf(bio_err,"                have been reported as requiring\n");
 395                 BIO_printf(bio_err,"                [ It is now always turned on but can be turned off with -no-asn1-kludge ]\n");
 396                 BIO_printf(bio_err," -extensions .. specify certificate extension section (override value in config file)\n");
 397                 BIO_printf(bio_err," -reqexts ..    specify request extension section (override value in config file)\n");
 398                 goto end;
 399                 }
 400
 401         ERR_load_crypto_strings();
 402
 403 #ifndef MONOLITH /* else this has happened in openssl.c (global `config') */
 404         /* Lets load up our environment a little */
 405         p=getenv("OPENSSL_CONF");
 406         if (p == NULL)
 407                 p=getenv("SSLEAY_CONF");
 408         if (p == NULL)
 409                 {
 410                 strcpy(config_name,X509_get_default_cert_area());
 411 #ifndef VMS
 412                 strcat(config_name,"/");
 413 #endif
 414                 strcat(config_name,OPENSSL_CONF);
 415                 p=config_name;
 416                 }
 417         default_config_file=p;
 418         config=CONF_load(config,p,NULL);
 419 #endif
 420
 421         if (template != NULL)
 422                 {
 423                 long errline;
 424
 425                 BIO_printf(bio_err,"Using configuration from %s\n",template);
 426                 req_conf=CONF_load(NULL,template,&errline);
 427                 if (req_conf == NULL)
 428                         {
 429                         BIO_printf(bio_err,"error on line %ld of %s\n",errline,template);
 430                         goto end;
 431                         }
 432                 }
 433         else
 434                 {
 435                 req_conf=config;
 436                 BIO_printf(bio_err,"Using configuration from %s\n",
 437                         default_config_file);
 438                 if (req_conf == NULL)
 439                         {
 440                         BIO_printf(bio_err,"Unable to load config info\n");
 441                         }
 442                 }
 443
 444         if (req_conf != NULL)
 445                 {
 446                 p=CONF_get_string(req_conf,NULL,"oid_file");
 447                 if (p != NULL)
 448                         {
 449                         BIO *oid_bio;
 450
 451                         oid_bio=BIO_new_file(p,"r");
 452                         if (oid_bio == NULL)
 453                                 {
 454                                 /*
 455                                 BIO_printf(bio_err,"problems opening %s for extra oid's\n",p);
 456                                 ERR_print_errors(bio_err);
 457                                 */
 458                                 }
 459                         else
 460                                 {
 461                                 OBJ_create_objects(oid_bio);
 462                                 BIO_free(oid_bio);
 463                                 }
 464                         }
 465                 }
 466                 if(!add_oid_section(req_conf)) goto end;
 467
 468         if ((md_alg == NULL) &&
 469                 ((p=CONF_get_string(req_conf,SECTION,"default_md")) != NULL))
 470                 {
 471                 if ((md_alg=EVP_get_digestbyname(p)) != NULL)
 472                         digest=md_alg;
 473                 }
 474
 475         if(!extensions)
 476                 extensions = CONF_get_string(req_conf, SECTION, V3_EXTENSIONS);
 477         if(extensions) {
 478                 /* Check syntax of file */
 479                 X509V3_CTX ctx;
 480                 X509V3_set_ctx_test(&ctx);
 481                 X509V3_set_conf_lhash(&ctx, req_conf);
 482                 if(!X509V3_EXT_add_conf(req_conf, &ctx, extensions, NULL)) {
 483                         BIO_printf(bio_err,
 484                          "Error Loading extension section %s\n", extensions);
 485                         goto end;
 486                 }
 487         }
 488
 489         if(!passin)
 490                 passin = CONF_get_string(req_conf, SECTION, "input_password");
 491
 492         if(!passout)
 493                 passout = CONF_get_string(req_conf, SECTION, "output_password");
 494
 495         p = CONF_get_string(req_conf, SECTION, DIRSTRING_TYPE);
 496
 497         if(p && !ASN1_STRING_set_default_mask_asc(p)) {
 498                 BIO_printf(bio_err, "Invalid DiretoryString setting %s", p);
 499                 goto end;
 500         }
 501
 502         if(!req_exts)
 503                 req_exts = CONF_get_string(req_conf, SECTION, REQ_EXTENSIONS);
 504         if(req_exts) {
 505                 /* Check syntax of file */
 506                 X509V3_CTX ctx;
 507                 X509V3_set_ctx_test(&ctx);
 508                 X509V3_set_conf_lhash(&ctx, req_conf);
 509                 if(!X509V3_EXT_add_conf(req_conf, &ctx, req_exts, NULL)) {
 510                         BIO_printf(bio_err,
 511                          "Error Loading request extension section %s\n",
 512                                                                 req_exts);
 513                         goto end;
 514                 }
 515         }
 516
 517         in=BIO_new(BIO_s_file());
 518         out=BIO_new(BIO_s_file());
 519         if ((in == NULL) || (out == NULL))
 520                 goto end;
 521
 522         if (keyfile != NULL)
 523                 {
 524                 if (BIO_read_filename(in,keyfile) <= 0)
 525                         {
 526                         perror(keyfile);
 527                         goto end;
 528                         }
 529
 530 /*              if (keyform == FORMAT_ASN1)
 531                         rsa=d2i_RSAPrivateKey_bio(in,NULL);
 532                 else */
 533                 if (keyform == FORMAT_PEM)
 534                         {
 535                         pkey=PEM_read_bio_PrivateKey(in,NULL,PEM_cb,passin);
 536                         }
 537                 else
 538                         {
 539                         BIO_printf(bio_err,"bad input format specified for X509 request\n");
 540                         goto end;
 541                         }
 542
 543                 if (pkey == NULL)
 544                         {
 545                         BIO_printf(bio_err,"unable to load Private key\n");
 546                         goto end;
 547                         }
 548                 }
 549
 550         if (newreq && (pkey == NULL))
 551                 {
 552                 char *randfile = CONF_get_string(req_conf,SECTION,"RANDFILE");
 553                 app_RAND_load_file(randfile, bio_err, 0);
 554
 555                 if (newkey <= 0)
 556                         {
 557                         newkey=(int)CONF_get_number(req_conf,SECTION,BITS);
 558                         if (newkey <= 0)
 559                                 newkey=DEFAULT_KEY_LENGTH;
 560                         }
 561
 562                 if (newkey < MIN_KEY_LENGTH)
 563                         {
 564                         BIO_printf(bio_err,"private key length is too short,\n");
 565                         BIO_printf(bio_err,"it needs to be at least %d bits, not %d\n",MIN_KEY_LENGTH,newkey);
 566                         goto end;
 567                         }
 568                 BIO_printf(bio_err,"Generating a %d bit %s private key\n",
 569                         newkey,(pkey_type == TYPE_RSA)?"RSA":"DSA");
 570
 571                 if ((pkey=EVP_PKEY_new()) == NULL) goto end;
 572
 573 #ifndef NO_RSA
 574                 if (pkey_type == TYPE_RSA)
 575                         {
 576                         if (!EVP_PKEY_assign_RSA(pkey,
 577                                 RSA_generate_key(newkey,0x10001,
 578                                         req_cb,bio_err)))
 579                                 goto end;
 580                         }
 581                 else
 582 #endif
 583 #ifndef NO_DSA
 584                         if (pkey_type == TYPE_DSA)
 585                         {
 586                         if (!DSA_generate_key(dsa_params)) goto end;
 587                         if (!EVP_PKEY_assign_DSA(pkey,dsa_params)) goto end;
 588                         dsa_params=NULL;
 589                         }
 590 #endif
 591
 592                 app_RAND_write_file(randfile, bio_err);
 593
 594                 if (pkey == NULL) goto end;
 595
 596                 if (keyout == NULL)
 597                         keyout=CONF_get_string(req_conf,SECTION,KEYFILE);
 598
 599                 if (keyout == NULL)
 600                         {
 601                         BIO_printf(bio_err,"writing new private key to stdout\n");
 602                         BIO_set_fp(out,stdout,BIO_NOCLOSE);
 603                         }
 604                 else
 605                         {
 606                         BIO_printf(bio_err,"writing new private key to '%s'\n",keyout);
 607                         if (BIO_write_filename(out,keyout) <= 0)
 608                                 {
 609                                 perror(keyout);
 610                                 goto end;
 611                                 }
 612                         }
 613
 614                 p=CONF_get_string(req_conf,SECTION,"encrypt_rsa_key");
 615                 if (p == NULL)
 616                         p=CONF_get_string(req_conf,SECTION,"encrypt_key");
 617                 if ((p != NULL) && (strcmp(p,"no") == 0))
 618                         cipher=NULL;
 619                 if (nodes) cipher=NULL;
 620
 621                 i=0;
 622 loop:
 623                 if (!PEM_write_bio_PrivateKey(out,pkey,cipher,
 624                         NULL,0,PEM_cb,passout))
 625                         {
 626                         if ((ERR_GET_REASON(ERR_peek_error()) ==
 627                                 PEM_R_PROBLEMS_GETTING_PASSWORD) && (i < 3))
 628                                 {
 629                                 ERR_clear_error();
 630                                 i++;
 631                                 goto loop;
 632                                 }
 633                         goto end;
 634                         }
 635                 BIO_printf(bio_err,"-----\n");
 636                 }
 637
 638         if (!newreq)
 639                 {
 640                 /* Since we are using a pre-existing certificate
 641                  * request, the kludge 'format' info should not be
 642                  * changed. */
 643                 kludge= -1;
 644                 if (infile == NULL)
 645                         BIO_set_fp(in,stdin,BIO_NOCLOSE);
 646                 else
 647                         {
 648                         if (BIO_read_filename(in,infile) <= 0)
 649                                 {
 650                                 perror(infile);
 651                                 goto end;
 652                                 }
 653                         }
 654
 655                 if      (informat == FORMAT_ASN1)
 656                         req=d2i_X509_REQ_bio(in,NULL);
 657                 else if (informat == FORMAT_PEM)
 658                         req=PEM_read_bio_X509_REQ(in,NULL,NULL,NULL);
 659                 else
 660                         {
 661                         BIO_printf(bio_err,"bad input format specified for X509 request\n");
 662                         goto end;
 663                         }
 664                 if (req == NULL)
 665                         {
 666                         BIO_printf(bio_err,"unable to load X509 request\n");
 667                         goto end;
 668                         }
 669                 }
 670
 671         if (newreq || x509)
 672                 {
 673 #ifndef NO_DSA
 674                 if (pkey->type == EVP_PKEY_DSA)
 675                         digest=EVP_dss1();
 676 #endif
 677
 678                 if (pkey == NULL)
 679                         {
 680                         BIO_printf(bio_err,"you need to specify a private key\n");
 681                         goto end;
 682                         }
 683                 if (req == NULL)
 684                         {
 685                         req=X509_REQ_new();
 686                         if (req == NULL)
 687                                 {
 688                                 goto end;
 689                                 }
 690
 691                         i=make_REQ(req,pkey,!x509);
 692                         if (kludge >= 0)
 693                                 req->req_info->req_kludge=kludge;
 694                         if (!i)
 695                                 {
 696                                 BIO_printf(bio_err,"problems making Certificate Request\n");
 697                                 goto end;
 698                                 }
 699                         }
 700                 if (x509)
 701                         {
 702                         EVP_PKEY *tmppkey;
 703                         X509V3_CTX ext_ctx;
 704                         if ((x509ss=X509_new()) == NULL) goto end;
 705
 706                         /* Set version to V3 */
 707                         if(!X509_set_version(x509ss, 2)) goto end;
 708                         ASN1_INTEGER_set(X509_get_serialNumber(x509ss),0L);
 709
 710                         X509_set_issuer_name(x509ss,
 711                                 X509_REQ_get_subject_name(req));
 712                         X509_gmtime_adj(X509_get_notBefore(x509ss),0);
 713                         X509_gmtime_adj(X509_get_notAfter(x509ss),
 714                                 (long)60*60*24*days);
 715                         X509_set_subject_name(x509ss,
 716                                 X509_REQ_get_subject_name(req));
 717                         tmppkey = X509_REQ_get_pubkey(req);
 718                         X509_set_pubkey(x509ss,tmppkey);
 719                         EVP_PKEY_free(tmppkey);
 720
 721                         /* Set up V3 context struct */
 722
 723                         X509V3_set_ctx(&ext_ctx, x509ss, x509ss, NULL, NULL, 0);
 724                         X509V3_set_conf_lhash(&ext_ctx, req_conf);
 725
 726                         /* Add extensions */
 727                         if(extensions && !X509V3_EXT_add_conf(req_conf,
 728                                         &ext_ctx, extensions, x509ss))
 729                             {
 730                             BIO_printf(bio_err,
 731                                        "Error Loading extension section %s\n",
 732                                        extensions);
 733                             goto end;
 734                             }
 735
 736                         if (!(i=X509_sign(x509ss,pkey,digest)))
 737                                 goto end;
 738                         }
 739                 else
 740                         {
 741                         X509V3_CTX ext_ctx;
 742
 743                         /* Set up V3 context struct */
 744
 745                         X509V3_set_ctx(&ext_ctx, NULL, NULL, req, NULL, 0);
 746                         X509V3_set_conf_lhash(&ext_ctx, req_conf);
 747
 748                         /* Add extensions */
 749                         if(req_exts && !X509V3_EXT_REQ_add_conf(req_conf,
 750                                         &ext_ctx, req_exts, req))
 751                             {
 752                             BIO_printf(bio_err,
 753                                        "Error Loading extension section %s\n",
 754                                        req_exts);
 755                             goto end;
 756                             }
 757                         if (!(i=X509_REQ_sign(req,pkey,digest)))
 758                                 goto end;
 759                         }
 760                 }
 761
 762         if (verify && !x509)
 763                 {
 764                 int tmp=0;
 765
 766                 if (pkey == NULL)
 767                         {
 768                         pkey=X509_REQ_get_pubkey(req);
 769                         tmp=1;
 770                         if (pkey == NULL) goto end;
 771                         }
 772
 773                 i=X509_REQ_verify(req,pkey);
 774                 if (tmp) {
 775                         EVP_PKEY_free(pkey);
 776                         pkey=NULL;
 777                 }
 778
 779                 if (i < 0)
 780                         {
 781                         goto end;
 782                         }
 783                 else if (i == 0)
 784                         {
 785                         BIO_printf(bio_err,"verify failure\n");
 786                         }
 787                 else /* if (i > 0) */
 788                         BIO_printf(bio_err,"verify OK\n");
 789                 }
 790
 791         if (noout && !text && !modulus)
 792                 {
 793                 ex=0;
 794                 goto end;
 795                 }
 796
 797         if (outfile == NULL)
 798                 BIO_set_fp(out,stdout,BIO_NOCLOSE);
 799         else
 800                 {
 801                 if ((keyout != NULL) && (strcmp(outfile,keyout) == 0))
 802                         i=(int)BIO_append_filename(out,outfile);
 803                 else
 804                         i=(int)BIO_write_filename(out,outfile);
 805                 if (!i)
 806                         {
 807                         perror(outfile);
 808                         goto end;
 809                         }
 810                 }
 811
 812         if (text)
 813                 {
 814                 if (x509)
 815                         X509_print(out,x509ss);
 816                 else
 817                         X509_REQ_print(out,req);
 818                 }
 819
 820         if (modulus)
 821                 {
 822                 EVP_PKEY *pubkey;
 823
 824                 if (x509)
 825                         pubkey=X509_get_pubkey(x509ss);
 826                 else
 827                         pubkey=X509_REQ_get_pubkey(req);
 828                 if (pubkey == NULL)
 829                         {
 830                         fprintf(stdout,"Modulus=unavailable\n");
 831                         goto end;
 832                         }
 833                 fprintf(stdout,"Modulus=");
 834 #ifndef NO_RSA
 835                 if (pubkey->type == EVP_PKEY_RSA)
 836                         BN_print(out,pubkey->pkey.rsa->n);
 837                 else
 838 #endif
 839                         fprintf(stdout,"Wrong Algorithm type");
 840                 fprintf(stdout,"\n");
 841                 }
 842
 843         if (!noout && !x509)
 844                 {
 845                 if      (outformat == FORMAT_ASN1)
 846                         i=i2d_X509_REQ_bio(out,req);
 847                 else if (outformat == FORMAT_PEM)
 848                         i=PEM_write_bio_X509_REQ(out,req);
 849                 else    {
 850                         BIO_printf(bio_err,"bad output format specified for outfile\n");
 851                         goto end;
 852                         }
 853                 if (!i)
 854                         {
 855                         BIO_printf(bio_err,"unable to write X509 request\n");
 856                         goto end;
 857                         }
 858                 }
 859         if (!noout && x509 && (x509ss != NULL))
 860                 {
 861                 if      (outformat == FORMAT_ASN1)
 862                         i=i2d_X509_bio(out,x509ss);
 863                 else if (outformat == FORMAT_PEM)
 864                         i=PEM_write_bio_X509(out,x509ss);
 865                 else    {
 866                         BIO_printf(bio_err,"bad output format specified for outfile\n");
 867                         goto end;
 868                         }
 869                 if (!i)
 870                         {
 871                         BIO_printf(bio_err,"unable to write X509 certificate\n");
 872                         goto end;
 873                         }
 874                 }
 875         ex=0;
 876 end:
 877         if (ex)
 878                 {
 879                 ERR_print_errors(bio_err);
 880                 }
 881         if ((req_conf != NULL) && (req_conf != config)) CONF_free(req_conf);
 882         BIO_free(in);
 883         BIO_free(out);
 884         EVP_PKEY_free(pkey);
 885         X509_REQ_free(req);
 886         X509_free(x509ss);
 887         OBJ_cleanup();
 888 #ifndef NO_DSA
 889         if (dsa_params != NULL) DSA_free(dsa_params);
 890 #endif
 891         EXIT(ex);
 892         }
 893
 894 static int make_REQ(X509_REQ *req, EVP_PKEY *pkey, int attribs)
 895         {
 896         int ret=0,i;
 897         char *p,*q;
 898         X509_REQ_INFO *ri;
 899         char buf[100];
 900         int nid,min,max;
 901         char *type,*def,*tmp,*value,*tmp_attr;
 902         STACK_OF(CONF_VALUE) *sk, *attr=NULL;
 903         CONF_VALUE *v;
 904
 905         tmp=CONF_get_string(req_conf,SECTION,DISTINGUISHED_NAME);
 906         if (tmp == NULL)
 907                 {
 908                 BIO_printf(bio_err,"unable to find '%s' in config\n",
 909                         DISTINGUISHED_NAME);
 910                 goto err;
 911                 }
 912         sk=CONF_get_section(req_conf,tmp);
 913         if (sk == NULL)
 914                 {
 915                 BIO_printf(bio_err,"unable to get '%s' section\n",tmp);
 916                 goto err;
 917                 }
 918
 919         tmp_attr=CONF_get_string(req_conf,SECTION,ATTRIBUTES);
 920         if (tmp_attr == NULL)
 921                 attr=NULL;
 922         else
 923                 {
 924                 attr=CONF_get_section(req_conf,tmp_attr);
 925                 if (attr == NULL)
 926                         {
 927                         BIO_printf(bio_err,"unable to get '%s' section\n",tmp_attr);
 928                         goto err;
 929                         }
 930                 }
 931
 932         ri=req->req_info;
 933
 934         /* setup version number */
 935         if (!ASN1_INTEGER_set(ri->version,0L)) goto err; /* version 1 */
 936
 937         BIO_printf(bio_err,"You are about to be asked to enter information that will be incorporated\n");
 938         BIO_printf(bio_err,"into your certificate request.\n");
 939         BIO_printf(bio_err,"What you are about to enter is what is called a Distinguished Name or a DN.\n");
 940         BIO_printf(bio_err,"There are quite a few fields but you can leave some blank\n");
 941         BIO_printf(bio_err,"For some fields there will be a default value,\n");
 942         BIO_printf(bio_err,"If you enter '.', the field will be left blank.\n");
 943         BIO_printf(bio_err,"-----\n");
 944
 945
 946         if (sk_CONF_VALUE_num(sk))
 947                 {
 948                 i= -1;
 949 start:          for (;;)
 950                         {
 951                         i++;
 952                         if (sk_CONF_VALUE_num(sk) <= i) break;
 953
 954                         v=sk_CONF_VALUE_value(sk,i);
 955                         p=q=NULL;
 956                         type=v->name;
 957                         if(!check_end(type,"_min") || !check_end(type,"_max") ||
 958                                 !check_end(type,"_default") ||
 959                                          !check_end(type,"_value")) continue;
 960                         /* Skip past any leading X. X: X, etc to allow for
 961                          * multiple instances
 962                          */
 963                         for(p = v->name; *p ; p++)
 964                                 if ((*p == ':') || (*p == ',') ||
 965                                                          (*p == '.')) {
 966                                         p++;
 967                                         if(*p) type = p;
 968                                         break;
 969                                 }
 970                         /* If OBJ not recognised ignore it */
 971                         if ((nid=OBJ_txt2nid(type)) == NID_undef) goto start;
 972                         sprintf(buf,"%s_default",v->name);
 973                         if ((def=CONF_get_string(req_conf,tmp,buf)) == NULL)
 974                                 def="";
 975
 976                         sprintf(buf,"%s_value",v->name);
 977                         if ((value=CONF_get_string(req_conf,tmp,buf)) == NULL)
 978                                 value=NULL;
 979
 980                         sprintf(buf,"%s_min",v->name);
 981                         min=(int)CONF_get_number(req_conf,tmp,buf);
 982
 983                         sprintf(buf,"%s_max",v->name);
 984                         max=(int)CONF_get_number(req_conf,tmp,buf);
 985
 986                         if (!add_DN_object(ri->subject,v->value,def,value,nid,
 987                                 min,max))
 988                                 goto err;
 989                         }
 990                 if (sk_X509_NAME_ENTRY_num(ri->subject->entries) == 0)
 991                         {
 992                         BIO_printf(bio_err,"error, no objects specified in config file\n");
 993                         goto err;
 994                         }
 995
 996                 if (attribs)
 997                         {
 998                         if ((attr != NULL) && (sk_CONF_VALUE_num(attr) > 0))
 999                                 {
1000                                 BIO_printf(bio_err,"\nPlease enter the following 'extra' attributes\n");
1001                                 BIO_printf(bio_err,"to be sent with your certificate request\n");
1002                                 }
1003
1004                         i= -1;
1005 start2:                 for (;;)
1006                                 {
1007                                 i++;
1008                                 if ((attr == NULL) ||
1009                                             (sk_CONF_VALUE_num(attr) <= i))
1010                                         break;
1011
1012                                 v=sk_CONF_VALUE_value(attr,i);
1013                                 type=v->name;
1014                                 if ((nid=OBJ_txt2nid(type)) == NID_undef)
1015                                         goto start2;
1016
1017                                 sprintf(buf,"%s_default",type);
1018                                 if ((def=CONF_get_string(req_conf,tmp_attr,buf))
1019                                         == NULL)
1020                                         def="";
1021
1022                                 sprintf(buf,"%s_value",type);
1023                                 if ((value=CONF_get_string(req_conf,tmp_attr,buf))
1024                                         == NULL)
1025                                         value=NULL;
1026
1027                                 sprintf(buf,"%s_min",type);
1028                                 min=(int)CONF_get_number(req_conf,tmp_attr,buf);
1029
1030                                 sprintf(buf,"%s_max",type);
1031                                 max=(int)CONF_get_number(req_conf,tmp_attr,buf);
1032
1033                                 if (!add_attribute_object(ri->attributes,
1034                                         v->value,def,value,nid,min,max))
1035                                         goto err;
1036                                 }
1037                         }
1038                 }
1039         else
1040                 {
1041                 BIO_printf(bio_err,"No template, please set one up.\n");
1042                 goto err;
1043                 }
1044
1045         X509_REQ_set_pubkey(req,pkey);
1046
1047         ret=1;
1048 err:
1049         return(ret);
1050         }
1051
1052 static int add_DN_object(X509_NAME *n, char *text, char *def, char *value,
1053              int nid, int min, int max)
1054         {
1055         int i,ret=0;
1056         MS_STATIC char buf[1024];
1057
1058         BIO_printf(bio_err,"%s [%s]:",text,def);
1059         (void)BIO_flush(bio_err);
1060         if (value != NULL)
1061                 {
1062                 strcpy(buf,value);
1063                 strcat(buf,"\n");
1064                 BIO_printf(bio_err,"%s\n",value);
1065                 }
1066         else
1067                 {
1068                 buf[0]='\0';
1069                 fgets(buf,1024,stdin);
1070                 }
1071
1072         if (buf[0] == '\0') return(0);
1073         else if (buf[0] == '\n')
1074                 {
1075                 if ((def == NULL) || (def[0] == '\0'))
1076                         return(1);
1077                 strcpy(buf,def);
1078                 strcat(buf,"\n");
1079                 }
1080         else if ((buf[0] == '.') && (buf[1] == '\n')) return(1);
1081
1082         i=strlen(buf);
1083         if (buf[i-1] != '\n')
1084                 {
1085                 BIO_printf(bio_err,"weird input :-(\n");
1086                 return(0);
1087                 }
1088         buf[--i]='\0';
1089
1090 #ifdef CHARSET_EBCDIC
1091         ebcdic2ascii(buf, buf, i);
1092 #endif
1093         if(!req_fix_data(-1, NULL, i, min, max)) goto err;
1094         if (!X509_NAME_add_entry_by_NID(n,nid, MBSTRING_ASC,
1095                                 (unsigned char *) buf, -1,-1,0)) goto err;
1096         ret=1;
1097 err:
1098         return(ret);
1099         }
1100
1101 static int add_attribute_object(STACK_OF(X509_ATTRIBUTE) *n, char *text,
1102                                 char *def, char *value, int nid, int min,
1103                                 int max)
1104         {
1105         int i,z;
1106         X509_ATTRIBUTE *xa=NULL;
1107         static char buf[1024];
1108         ASN1_BIT_STRING *bs=NULL;
1109         ASN1_TYPE *at=NULL;
1110
1111 start:
1112         BIO_printf(bio_err,"%s [%s]:",text,def);
1113         (void)BIO_flush(bio_err);
1114         if (value != NULL)
1115                 {
1116                 strcpy(buf,value);
1117                 strcat(buf,"\n");
1118                 BIO_printf(bio_err,"%s\n",value);
1119                 }
1120         else
1121                 {
1122                 buf[0]='\0';
1123                 fgets(buf,1024,stdin);
1124                 }
1125
1126         if (buf[0] == '\0') return(0);
1127         else if (buf[0] == '\n')
1128                 {
1129                 if ((def == NULL) || (def[0] == '\0'))
1130                         return(1);
1131                 strcpy(buf,def);
1132                 strcat(buf,"\n");
1133                 }
1134         else if ((buf[0] == '.') && (buf[1] == '\n')) return(1);
1135
1136         i=strlen(buf);
1137         if (buf[i-1] != '\n')
1138                 {
1139                 BIO_printf(bio_err,"weird input :-(\n");
1140                 return(0);
1141                 }
1142         buf[--i]='\0';
1143
1144         /* add object plus value */
1145         if ((xa=X509_ATTRIBUTE_new()) == NULL)
1146                 goto err;
1147         if ((xa->value.set=sk_ASN1_TYPE_new_null()) == NULL)
1148                 goto err;
1149         xa->set=1;
1150
1151         if (xa->object != NULL) ASN1_OBJECT_free(xa->object);
1152         xa->object=OBJ_nid2obj(nid);
1153
1154         if ((bs=ASN1_BIT_STRING_new()) == NULL) goto err;
1155
1156         bs->type=ASN1_PRINTABLE_type((unsigned char *)buf,-1);
1157
1158         z=req_fix_data(nid,&bs->type,i,min,max);
1159         if (z == 0)
1160                 {
1161                 if (value == NULL)
1162                         goto start;
1163                 else    goto err;
1164                 }
1165
1166         if (!ASN1_STRING_set(bs,(unsigned char *)buf,i))
1167                 { BIO_printf(bio_err,"Malloc failure\n"); goto err; }
1168
1169         if ((at=ASN1_TYPE_new()) == NULL)
1170                 { BIO_printf(bio_err,"Malloc failure\n"); goto err; }
1171
1172         ASN1_TYPE_set(at,bs->type,(char *)bs);
1173         sk_ASN1_TYPE_push(xa->value.set,at);
1174         bs=NULL;
1175         at=NULL;
1176         /* only one item per attribute */
1177
1178         if (!sk_X509_ATTRIBUTE_push(n,xa)) goto err;
1179         return(1);
1180 err:
1181         if (xa != NULL) X509_ATTRIBUTE_free(xa);
1182         if (at != NULL) ASN1_TYPE_free(at);
1183         if (bs != NULL) ASN1_BIT_STRING_free(bs);
1184         return(0);
1185         }
1186
1187 static void MS_CALLBACK req_cb(int p, int n, void *arg)
1188         {
1189         char c='*';
1190
1191         if (p == 0) c='.';
1192         if (p == 1) c='+';
1193         if (p == 2) c='*';
1194         if (p == 3) c='\n';
1195         BIO_write((BIO *)arg,&c,1);
1196         (void)BIO_flush((BIO *)arg);
1197 #ifdef LINT
1198         p=n;
1199 #endif
1200         }
1201
1202 static int req_fix_data(int nid, int *type, int len, int min, int max)
1203         {
1204         if(type) {
1205                 if (nid == NID_pkcs9_emailAddress)
1206                         *type=V_ASN1_IA5STRING;
1207                 if ((nid == NID_commonName) && (*type == V_ASN1_IA5STRING))
1208                         *type=V_ASN1_T61STRING;
1209                 if ((nid == NID_pkcs9_challengePassword) &&
1210                         (*type == V_ASN1_IA5STRING))
1211                         *type=V_ASN1_T61STRING;
1212
1213                 if ((nid == NID_pkcs9_unstructuredName) &&
1214                         (*type == V_ASN1_T61STRING))
1215                         {
1216                         BIO_printf(bio_err,"invalid characters in string, please re-enter the string\n");
1217                         return(0);
1218                         }
1219                 if (nid == NID_pkcs9_unstructuredName)
1220                         *type=V_ASN1_IA5STRING;
1221         }
1222         if (len < min)
1223                 {
1224                 BIO_printf(bio_err,"string is too short, it needs to be at least %d bytes long\n",min);
1225                 return(0);
1226                 }
1227         if ((max != 0) && (len > max))
1228                 {
1229                 BIO_printf(bio_err,"string is too long, it needs to be less than  %d bytes long\n",max);
1230                 return(0);
1231                 }
1232         return(1);
1233         }
1234
1235 /* Check if the end of a string matches 'end' */
1236 static int check_end(char *str, char *end)
1237 {
1238         int elen, slen;
1239         char *tmp;
1240         elen = strlen(end);
1241         slen = strlen(str);
1242         if(elen > slen) return 1;
1243         tmp = str + slen - elen;
1244         return strcmp(tmp, end);
1245 }
1246
1247 static int add_oid_section(LHASH *conf)
1248 {
1249         char *p;
1250         STACK_OF(CONF_VALUE) *sktmp;
1251         CONF_VALUE *cnf;
1252         int i;
1253         if(!(p=CONF_get_string(conf,NULL,"oid_section"))) return 1;
1254         if(!(sktmp = CONF_get_section(conf, p))) {
1255                 BIO_printf(bio_err, "problem loading oid section %s\n", p);
1256                 return 0;
1257         }
1258         for(i = 0; i < sk_CONF_VALUE_num(sktmp); i++) {
1259                 cnf = sk_CONF_VALUE_value(sktmp, i);
1260                 if(OBJ_create(cnf->value, cnf->name, cnf->name) == NID_undef) {
1261                         BIO_printf(bio_err, "problem creating object %s=%s\n",
1262                                                          cnf->name, cnf->value);
1263                         return 0;
1264                 }
1265         }
1266         return 1;
1267 }