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/rand.h>
  70 #include <openssl/conf.h>
  71 #include <openssl/err.h>
  72 #include <openssl/asn1.h>
  73 #include <openssl/x509.h>
  74 #include <openssl/x509v3.h>
  75 #include <openssl/objects.h>
  76 #include <openssl/pem.h>
  77
  78 #define SECTION         "req"
  79
  80 #define BITS            "default_bits"
  81 #define KEYFILE         "default_keyfile"
  82 #define DISTINGUISHED_NAME      "distinguished_name"
  83 #define ATTRIBUTES      "attributes"
  84 #define V3_EXTENSIONS   "x509_extensions"
  85
  86 #define DEFAULT_KEY_LENGTH      512
  87 #define MIN_KEY_LENGTH          384
  88
  89 #undef PROG
  90 #define PROG    req_main
  91
  92 /* -inform arg  - input format - default PEM (one of DER, TXT or PEM)
  93  * -outform arg - output format - default PEM
  94  * -in arg      - input file - default stdin
  95  * -out arg     - output file - default stdout
  96  * -verify      - check request signature
  97  * -noout       - don't print stuff out.
  98  * -text        - print out human readable text.
  99  * -nodes       - no des encryption
 100  * -config file - Load configuration file.
 101  * -key file    - make a request using key in file (or use it for verification).
 102  * -keyform     - key file format.
 103  * -newkey      - make a key and a request.
 104  * -modulus     - print RSA modulus.
 105  * -x509        - output a self signed X509 structure instead.
 106  * -asn1-kludge - output new certificate request in a format that some CA's
 107  *                require.  This format is wrong
 108  */
 109
 110 static int make_REQ(X509_REQ *req,EVP_PKEY *pkey,int attribs);
 111 static int add_attribute_object(STACK *n, char *text, char *def,
 112         char *value, int nid,int min,int max);
 113 static int add_DN_object(X509_NAME *n, char *text, char *def, char *value,
 114         int nid,int min,int max);
 115 static void MS_CALLBACK req_cb(int p,int n,char *arg);
 116 static int req_fix_data(int nid,int *type,int len,int min,int max);
 117 static int check_end(char *str, char *end);
 118 static int add_oid_section(LHASH *conf);
 119 #ifndef MONOLITH
 120 static char *default_config_file=NULL;
 121 static LHASH *config=NULL;
 122 #endif
 123 static LHASH *req_conf=NULL;
 124
 125 #define TYPE_RSA        1
 126 #define TYPE_DSA        2
 127 #define TYPE_DH         3
 128
 129 int MAIN(int argc, char **argv)
 130         {
 131 #ifndef NO_DSA
 132         DSA *dsa_params=NULL;
 133 #endif
 134         int ex=1,x509=0,days=30;
 135         X509 *x509ss=NULL;
 136         X509_REQ *req=NULL;
 137         EVP_PKEY *pkey=NULL;
 138         int i,badops=0,newreq=0,newkey= -1,pkey_type=0;
 139         BIO *in=NULL,*out=NULL;
 140         int informat,outformat,verify=0,noout=0,text=0,keyform=FORMAT_PEM;
 141         int nodes=0,kludge=0;
 142         char *infile,*outfile,*prog,*keyfile=NULL,*template=NULL,*keyout=NULL;
 143         char *extensions = NULL;
 144         EVP_CIPHER *cipher=NULL;
 145         int modulus=0;
 146         char *p;
 147         const EVP_MD *md_alg=NULL,*digest=EVP_md5();
 148 #ifndef MONOLITH
 149         MS_STATIC char config_name[256];
 150 #endif
 151
 152 #ifndef NO_DES
 153         cipher=EVP_des_ede3_cbc();
 154 #endif
 155         apps_startup();
 156
 157         if (bio_err == NULL)
 158                 if ((bio_err=BIO_new(BIO_s_file())) != NULL)
 159                         BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);
 160
 161         infile=NULL;
 162         outfile=NULL;
 163         informat=FORMAT_PEM;
 164         outformat=FORMAT_PEM;
 165
 166         prog=argv[0];
 167         argc--;
 168         argv++;
 169         while (argc >= 1)
 170                 {
 171                 if      (strcmp(*argv,"-inform") == 0)
 172                         {
 173                         if (--argc < 1) goto bad;
 174                         informat=str2fmt(*(++argv));
 175                         }
 176                 else if (strcmp(*argv,"-outform") == 0)
 177                         {
 178                         if (--argc < 1) goto bad;
 179                         outformat=str2fmt(*(++argv));
 180                         }
 181                 else if (strcmp(*argv,"-key") == 0)
 182                         {
 183                         if (--argc < 1) goto bad;
 184                         keyfile= *(++argv);
 185                         }
 186                 else if (strcmp(*argv,"-new") == 0)
 187                         {
 188                         pkey_type=TYPE_RSA;
 189                         newreq=1;
 190                         }
 191                 else if (strcmp(*argv,"-config") == 0)
 192                         {
 193                         if (--argc < 1) goto bad;
 194                         template= *(++argv);
 195                         }
 196                 else if (strcmp(*argv,"-keyform") == 0)
 197                         {
 198                         if (--argc < 1) goto bad;
 199                         keyform=str2fmt(*(++argv));
 200                         }
 201                 else if (strcmp(*argv,"-in") == 0)
 202                         {
 203                         if (--argc < 1) goto bad;
 204                         infile= *(++argv);
 205                         }
 206                 else if (strcmp(*argv,"-out") == 0)
 207                         {
 208                         if (--argc < 1) goto bad;
 209                         outfile= *(++argv);
 210                         }
 211                 else if (strcmp(*argv,"-keyout") == 0)
 212                         {
 213                         if (--argc < 1) goto bad;
 214                         keyout= *(++argv);
 215                         }
 216                 else if (strcmp(*argv,"-newkey") == 0)
 217                         {
 218                         int is_numeric;
 219
 220                         if (--argc < 1) goto bad;
 221                         p= *(++argv);
 222                         is_numeric = p[0] >= '0' && p[0] <= '9';
 223                         if (strncmp("rsa:",p,4) == 0 || is_numeric)
 224                                 {
 225                                 pkey_type=TYPE_RSA;
 226                                 if(!is_numeric)
 227                                     p+=4;
 228                                 newkey= atoi(p);
 229                                 }
 230                         else
 231 #ifndef NO_DSA
 232                                 if (strncmp("dsa:",p,4) == 0)
 233                                 {
 234                                 X509 *xtmp=NULL;
 235                                 EVP_PKEY *dtmp;
 236
 237                                 pkey_type=TYPE_DSA;
 238                                 p+=4;
 239                                 if ((in=BIO_new_file(p,"r")) == NULL)
 240                                         {
 241                                         perror(p);
 242                                         goto end;
 243                                         }
 244                                 if ((dsa_params=PEM_read_bio_DSAparams(in,NULL,NULL)) == NULL)
 245                                         {
 246                                         ERR_clear_error();
 247                                         BIO_reset(in);
 248                                         if ((xtmp=PEM_read_bio_X509(in,NULL,NULL)) == NULL)
 249                                                 {
 250                                                 BIO_printf(bio_err,"unable to load DSA parameters from file\n");
 251                                                 goto end;
 252                                                 }
 253
 254                                         dtmp=X509_get_pubkey(xtmp);
 255                                         if (dtmp->type == EVP_PKEY_DSA)
 256                                                 dsa_params=DSAparams_dup(dtmp->pkey.dsa);
 257                                         EVP_PKEY_free(dtmp);
 258                                         X509_free(xtmp);
 259                                         if (dsa_params == NULL)
 260                                                 {
 261                                                 BIO_printf(bio_err,"Certificate does not contain DSA parameters\n");
 262                                                 goto end;
 263                                                 }
 264                                         }
 265                                 BIO_free(in);
 266                                 newkey=BN_num_bits(dsa_params->p);
 267                                 in=NULL;
 268                                 }
 269                         else
 270 #endif
 271 #ifndef NO_DH
 272                                 if (strncmp("dh:",p,4) == 0)
 273                                 {
 274                                 pkey_type=TYPE_DH;
 275                                 p+=3;
 276                                 }
 277                         else
 278 #endif
 279                                 pkey_type=TYPE_RSA;
 280
 281                         newreq=1;
 282                         }
 283                 else if (strcmp(*argv,"-modulus") == 0)
 284                         modulus=1;
 285                 else if (strcmp(*argv,"-verify") == 0)
 286                         verify=1;
 287                 else if (strcmp(*argv,"-nodes") == 0)
 288                         nodes=1;
 289                 else if (strcmp(*argv,"-noout") == 0)
 290                         noout=1;
 291                 else if (strcmp(*argv,"-text") == 0)
 292                         text=1;
 293                 else if (strcmp(*argv,"-x509") == 0)
 294                         x509=1;
 295                 else if (strcmp(*argv,"-asn1-kludge") == 0)
 296                         kludge=1;
 297                 else if (strcmp(*argv,"-no-asn1-kludge") == 0)
 298                         kludge=0;
 299                 else if (strcmp(*argv,"-days") == 0)
 300                         {
 301                         if (--argc < 1) goto bad;
 302                         days= atoi(*(++argv));
 303                         if (days == 0) days=30;
 304                         }
 305                 else if ((md_alg=EVP_get_digestbyname(&((*argv)[1]))) != NULL)
 306                         {
 307                         /* ok */
 308                         digest=md_alg;
 309                         }
 310                 else
 311
 312                         {
 313                         BIO_printf(bio_err,"unknown option %s\n",*argv);
 314                         badops=1;
 315                         break;
 316                         }
 317                 argc--;
 318                 argv++;
 319                 }
 320
 321         if (badops)
 322                 {
 323 bad:
 324                 BIO_printf(bio_err,"%s [options] <infile >outfile\n",prog);
 325                 BIO_printf(bio_err,"where options  are\n");
 326                 BIO_printf(bio_err," -inform arg    input format - one of DER TXT PEM\n");
 327                 BIO_printf(bio_err," -outform arg   output format - one of DER TXT PEM\n");
 328                 BIO_printf(bio_err," -in arg        input file\n");
 329                 BIO_printf(bio_err," -out arg       output file\n");
 330                 BIO_printf(bio_err," -text          text form of request\n");
 331                 BIO_printf(bio_err," -noout         do not output REQ\n");
 332                 BIO_printf(bio_err," -verify        verify signature on REQ\n");
 333                 BIO_printf(bio_err," -modulus       RSA modulus\n");
 334                 BIO_printf(bio_err," -nodes         don't encrypt the output key\n");
 335                 BIO_printf(bio_err," -key file  use the private key contained in file\n");
 336                 BIO_printf(bio_err," -keyform arg   key file format\n");
 337                 BIO_printf(bio_err," -keyout arg    file to send the key to\n");
 338                 BIO_printf(bio_err," -newkey rsa:bits generate a new RSA key of 'bits' in size\n");
 339                 BIO_printf(bio_err," -newkey dsa:file generate a new DSA key, parameters taken from CA in 'file'\n");
 340
 341                 BIO_printf(bio_err," -[digest]      Digest to sign with (md5, sha1, md2, mdc2)\n");
 342                 BIO_printf(bio_err," -config file   request template file.\n");
 343                 BIO_printf(bio_err," -new           new request.\n");
 344                 BIO_printf(bio_err," -x509          output a x509 structure instead of a cert. req.\n");
 345                 BIO_printf(bio_err," -days          number of days a x509 generated by -x509 is valid for.\n");
 346                 BIO_printf(bio_err," -asn1-kludge   Output the 'request' in a format that is wrong but some CA's\n");
 347                 BIO_printf(bio_err,"                have been reported as requiring\n");
 348                 BIO_printf(bio_err,"                [ It is now always turned on but can be turned off with -no-asn1-kludge ]\n");
 349                 goto end;
 350                 }
 351
 352         ERR_load_crypto_strings();
 353         X509V3_add_standard_extensions();
 354
 355 #ifndef MONOLITH
 356         /* Lets load up our environment a little */
 357         p=getenv("OPENSSL_CONF");
 358         if (p == NULL)
 359                 p=getenv("SSLEAY_CONF");
 360         if (p == NULL)
 361                 {
 362                 strcpy(config_name,X509_get_default_cert_area());
 363                 strcat(config_name,"/lib/");
 364                 strcat(config_name,OPENSSL_CONF);
 365                 p=config_name;
 366                 }
 367         default_config_file=p;
 368         config=CONF_load(config,p,NULL);
 369 #endif
 370
 371         if (template != NULL)
 372                 {
 373                 long errline;
 374
 375                 BIO_printf(bio_err,"Using configuration from %s\n",template);
 376                 req_conf=CONF_load(NULL,template,&errline);
 377                 if (req_conf == NULL)
 378                         {
 379                         BIO_printf(bio_err,"error on line %ld of %s\n",errline,template);
 380                         goto end;
 381                         }
 382                 }
 383         else
 384                 {
 385                 req_conf=config;
 386                 BIO_printf(bio_err,"Using configuration from %s\n",
 387                         default_config_file);
 388                 if (req_conf == NULL)
 389                         {
 390                         BIO_printf(bio_err,"Unable to load config info\n");
 391                         }
 392                 }
 393
 394         if (req_conf != NULL)
 395                 {
 396                 p=CONF_get_string(req_conf,NULL,"oid_file");
 397                 if (p != NULL)
 398                         {
 399                         BIO *oid_bio;
 400
 401                         oid_bio=BIO_new_file(p,"r");
 402                         if (oid_bio == NULL)
 403                                 {
 404                                 /*
 405                                 BIO_printf(bio_err,"problems opening %s for extra oid's\n",p);
 406                                 ERR_print_errors(bio_err);
 407                                 */
 408                                 }
 409                         else
 410                                 {
 411                                 OBJ_create_objects(oid_bio);
 412                                 BIO_free(oid_bio);
 413                                 }
 414                         }
 415                 }
 416                 if(!add_oid_section(req_conf)) goto end;
 417
 418         if ((md_alg == NULL) &&
 419                 ((p=CONF_get_string(req_conf,SECTION,"default_md")) != NULL))
 420                 {
 421                 if ((md_alg=EVP_get_digestbyname(p)) != NULL)
 422                         digest=md_alg;
 423                 }
 424
 425         extensions = CONF_get_string(req_conf, SECTION, V3_EXTENSIONS);
 426         if(extensions) {
 427                 /* Check syntax of file */
 428                 X509V3_CTX ctx;
 429                 X509V3_set_ctx_test(&ctx);
 430                 X509V3_set_conf_lhash(&ctx, req_conf);
 431                 if(!X509V3_EXT_add_conf(req_conf, &ctx, extensions, NULL)) {
 432                         BIO_printf(bio_err,
 433                          "Error Loading extension section %s\n", extensions);
 434                         goto end;
 435                 }
 436         }
 437
 438         in=BIO_new(BIO_s_file());
 439         out=BIO_new(BIO_s_file());
 440         if ((in == NULL) || (out == NULL))
 441                 goto end;
 442
 443         if (keyfile != NULL)
 444                 {
 445                 if (BIO_read_filename(in,keyfile) <= 0)
 446                         {
 447                         perror(keyfile);
 448                         goto end;
 449                         }
 450
 451 /*              if (keyform == FORMAT_ASN1)
 452                         rsa=d2i_RSAPrivateKey_bio(in,NULL);
 453                 else */
 454                 if (keyform == FORMAT_PEM)
 455                         pkey=PEM_read_bio_PrivateKey(in,NULL,NULL);
 456                 else
 457                         {
 458                         BIO_printf(bio_err,"bad input format specified for X509 request\n");
 459                         goto end;
 460                         }
 461
 462                 if (pkey == NULL)
 463                         {
 464                         BIO_printf(bio_err,"unable to load Private key\n");
 465                         goto end;
 466                         }
 467                 }
 468
 469         if (newreq && (pkey == NULL))
 470                 {
 471                 char *randfile;
 472                 char buffer[200];
 473
 474                 if ((randfile=CONF_get_string(req_conf,SECTION,"RANDFILE")) == NULL)
 475                         randfile=RAND_file_name(buffer,200);
 476 #ifdef WINDOWS
 477                 BIO_printf(bio_err,"Loading 'screen' into random state -");
 478                 BIO_flush(bio_err);
 479                 RAND_screen();
 480                 BIO_printf(bio_err," done\n");
 481 #endif
 482                 if ((randfile == NULL) || !RAND_load_file(randfile,1024L*1024L))
 483                         {
 484                         BIO_printf(bio_err,"unable to load 'random state'\n");
 485                         BIO_printf(bio_err,"What this means is that the random number generator has not been seeded\n");
 486                         BIO_printf(bio_err,"with much random data.\n");
 487                         BIO_printf(bio_err,"Consider setting the RANDFILE environment variable to point at a file that\n");
 488                         BIO_printf(bio_err,"'random' data can be kept in.\n");
 489                         }
 490                 if (newkey <= 0)
 491                         {
 492                         newkey=(int)CONF_get_number(req_conf,SECTION,BITS);
 493                         if (newkey <= 0)
 494                                 newkey=DEFAULT_KEY_LENGTH;
 495                         }
 496
 497                 if (newkey < MIN_KEY_LENGTH)
 498                         {
 499                         BIO_printf(bio_err,"private key length is too short,\n");
 500                         BIO_printf(bio_err,"it needs to be at least %d bits, not %d\n",MIN_KEY_LENGTH,newkey);
 501                         goto end;
 502                         }
 503                 BIO_printf(bio_err,"Generating a %d bit %s private key\n",
 504                         newkey,(pkey_type == TYPE_RSA)?"RSA":"DSA");
 505
 506                 if ((pkey=EVP_PKEY_new()) == NULL) goto end;
 507
 508 #ifndef NO_RSA
 509                 if (pkey_type == TYPE_RSA)
 510                         {
 511                         if (!EVP_PKEY_assign_RSA(pkey,
 512                                 RSA_generate_key(newkey,0x10001,
 513                                         req_cb,(char *)bio_err)))
 514                                 goto end;
 515                         }
 516                 else
 517 #endif
 518 #ifndef NO_DSA
 519                         if (pkey_type == TYPE_DSA)
 520                         {
 521                         if (!DSA_generate_key(dsa_params)) goto end;
 522                         if (!EVP_PKEY_assign_DSA(pkey,dsa_params)) goto end;
 523                         dsa_params=NULL;
 524                         }
 525 #endif
 526
 527                 if ((randfile == NULL) || (RAND_write_file(randfile) == 0))
 528                         BIO_printf(bio_err,"unable to write 'random state'\n");
 529
 530                 if (pkey == NULL) goto end;
 531
 532                 if (keyout == NULL)
 533                         keyout=CONF_get_string(req_conf,SECTION,KEYFILE);
 534
 535                 if (keyout == NULL)
 536                         {
 537                         BIO_printf(bio_err,"writing new private key to stdout\n");
 538                         BIO_set_fp(out,stdout,BIO_NOCLOSE);
 539                         }
 540                 else
 541                         {
 542                         BIO_printf(bio_err,"writing new private key to '%s'\n",keyout);
 543                         if (BIO_write_filename(out,keyout) <= 0)
 544                                 {
 545                                 perror(keyout);
 546                                 goto end;
 547                                 }
 548                         }
 549
 550                 p=CONF_get_string(req_conf,SECTION,"encrypt_rsa_key");
 551                 if (p == NULL)
 552                         p=CONF_get_string(req_conf,SECTION,"encrypt_key");
 553                 if ((p != NULL) && (strcmp(p,"no") == 0))
 554                         cipher=NULL;
 555                 if (nodes) cipher=NULL;
 556
 557                 i=0;
 558 loop:
 559                 if (!PEM_write_bio_PrivateKey(out,pkey,cipher,
 560                         NULL,0,NULL))
 561                         {
 562                         if ((ERR_GET_REASON(ERR_peek_error()) ==
 563                                 PEM_R_PROBLEMS_GETTING_PASSWORD) && (i < 3))
 564                                 {
 565                                 ERR_clear_error();
 566                                 i++;
 567                                 goto loop;
 568                                 }
 569                         goto end;
 570                         }
 571                 BIO_printf(bio_err,"-----\n");
 572                 }
 573
 574         if (!newreq)
 575                 {
 576                 /* Since we are using a pre-existing certificate
 577                  * request, the kludge 'format' info should not be
 578                  * changed. */
 579                 kludge= -1;
 580                 if (infile == NULL)
 581                         BIO_set_fp(in,stdin,BIO_NOCLOSE);
 582                 else
 583                         {
 584                         if (BIO_read_filename(in,infile) <= 0)
 585                                 {
 586                                 perror(infile);
 587                                 goto end;
 588                                 }
 589                         }
 590
 591                 if      (informat == FORMAT_ASN1)
 592                         req=d2i_X509_REQ_bio(in,NULL);
 593                 else if (informat == FORMAT_PEM)
 594                         req=PEM_read_bio_X509_REQ(in,NULL,NULL);
 595                 else
 596                         {
 597                         BIO_printf(bio_err,"bad input format specified for X509 request\n");
 598                         goto end;
 599                         }
 600                 if (req == NULL)
 601                         {
 602                         BIO_printf(bio_err,"unable to load X509 request\n");
 603                         goto end;
 604                         }
 605                 }
 606
 607         if (newreq || x509)
 608                 {
 609 #ifndef NO_DSA
 610                 if (pkey->type == EVP_PKEY_DSA)
 611                         digest=EVP_dss1();
 612 #endif
 613
 614                 if (pkey == NULL)
 615                         {
 616                         BIO_printf(bio_err,"you need to specify a private key\n");
 617                         goto end;
 618                         }
 619                 if (req == NULL)
 620                         {
 621                         req=X509_REQ_new();
 622                         if (req == NULL)
 623                                 {
 624                                 goto end;
 625                                 }
 626
 627                         i=make_REQ(req,pkey,!x509);
 628                         if (kludge >= 0)
 629                                 req->req_info->req_kludge=kludge;
 630                         if (!i)
 631                                 {
 632                                 BIO_printf(bio_err,"problems making Certificate Request\n");
 633                                 goto end;
 634                                 }
 635                         }
 636                 if (x509)
 637                         {
 638                         EVP_PKEY *tmppkey;
 639                         X509V3_CTX ext_ctx;
 640                         if ((x509ss=X509_new()) == NULL) goto end;
 641
 642                         /* Set version to V3 */
 643                         if(!X509_set_version(x509ss, 2)) goto end;
 644                         ASN1_INTEGER_set(X509_get_serialNumber(x509ss),0L);
 645
 646                         X509_set_issuer_name(x509ss,
 647                                 X509_REQ_get_subject_name(req));
 648                         X509_gmtime_adj(X509_get_notBefore(x509ss),0);
 649                         X509_gmtime_adj(X509_get_notAfter(x509ss),
 650                                 (long)60*60*24*days);
 651                         X509_set_subject_name(x509ss,
 652                                 X509_REQ_get_subject_name(req));
 653                         tmppkey = X509_REQ_get_pubkey(req);
 654                         X509_set_pubkey(x509ss,tmppkey);
 655                         EVP_PKEY_free(tmppkey);
 656
 657                         /* Set up V3 context struct */
 658
 659                         X509V3_set_ctx(&ext_ctx, x509ss, x509ss, NULL, NULL, 0);
 660                         X509V3_set_conf_lhash(&ext_ctx, req_conf);
 661
 662                         /* Add extensions */
 663                         if(extensions && !X509V3_EXT_add_conf(req_conf,
 664                                         &ext_ctx, extensions, x509ss))
 665                             {
 666                             BIO_printf(bio_err,
 667                                        "Error Loading extension section %s\n",
 668                                        extensions);
 669                             goto end;
 670                             }
 671
 672                         if (!(i=X509_sign(x509ss,pkey,digest)))
 673                                 goto end;
 674                         }
 675                 else
 676                         {
 677                         if (!(i=X509_REQ_sign(req,pkey,digest)))
 678                                 goto end;
 679                         }
 680                 }
 681
 682         if (verify && !x509)
 683                 {
 684                 int tmp=0;
 685
 686                 if (pkey == NULL)
 687                         {
 688                         pkey=X509_REQ_get_pubkey(req);
 689                         tmp=1;
 690                         if (pkey == NULL) goto end;
 691                         }
 692
 693                 i=X509_REQ_verify(req,pkey);
 694                 if (tmp) {
 695                         EVP_PKEY_free(pkey);
 696                         pkey=NULL;
 697                 }
 698
 699                 if (i < 0)
 700                         {
 701                         goto end;
 702                         }
 703                 else if (i == 0)
 704                         {
 705                         BIO_printf(bio_err,"verify failure\n");
 706                         }
 707                 else /* if (i > 0) */
 708                         BIO_printf(bio_err,"verify OK\n");
 709                 }
 710
 711         if (noout && !text && !modulus)
 712                 {
 713                 ex=0;
 714                 goto end;
 715                 }
 716
 717         if (outfile == NULL)
 718                 BIO_set_fp(out,stdout,BIO_NOCLOSE);
 719         else
 720                 {
 721                 if ((keyout != NULL) && (strcmp(outfile,keyout) == 0))
 722                         i=(int)BIO_append_filename(out,outfile);
 723                 else
 724                         i=(int)BIO_write_filename(out,outfile);
 725                 if (!i)
 726                         {
 727                         perror(outfile);
 728                         goto end;
 729                         }
 730                 }
 731
 732         if (text)
 733                 {
 734                 if (x509)
 735                         X509_print(out,x509ss);
 736                 else
 737                         X509_REQ_print(out,req);
 738                 }
 739
 740         if (modulus)
 741                 {
 742                 EVP_PKEY *pubkey;
 743
 744                 if (x509)
 745                         pubkey=X509_get_pubkey(x509ss);
 746                 else
 747                         pubkey=X509_REQ_get_pubkey(req);
 748                 if (pubkey == NULL)
 749                         {
 750                         fprintf(stdout,"Modulus=unavailable\n");
 751                         goto end;
 752                         }
 753                 fprintf(stdout,"Modulus=");
 754 #ifndef NO_RSA
 755                 if (pubkey->type == EVP_PKEY_RSA)
 756                         BN_print(out,pubkey->pkey.rsa->n);
 757                 else
 758 #endif
 759                         fprintf(stdout,"Wrong Algorithm type");
 760                 fprintf(stdout,"\n");
 761                 }
 762
 763         if (!noout && !x509)
 764                 {
 765                 if      (outformat == FORMAT_ASN1)
 766                         i=i2d_X509_REQ_bio(out,req);
 767                 else if (outformat == FORMAT_PEM)
 768                         i=PEM_write_bio_X509_REQ(out,req);
 769                 else    {
 770                         BIO_printf(bio_err,"bad output format specified for outfile\n");
 771                         goto end;
 772                         }
 773                 if (!i)
 774                         {
 775                         BIO_printf(bio_err,"unable to write X509 request\n");
 776                         goto end;
 777                         }
 778                 }
 779         if (!noout && x509 && (x509ss != NULL))
 780                 {
 781                 if      (outformat == FORMAT_ASN1)
 782                         i=i2d_X509_bio(out,x509ss);
 783                 else if (outformat == FORMAT_PEM)
 784                         i=PEM_write_bio_X509(out,x509ss);
 785                 else    {
 786                         BIO_printf(bio_err,"bad output format specified for outfile\n");
 787                         goto end;
 788                         }
 789                 if (!i)
 790                         {
 791                         BIO_printf(bio_err,"unable to write X509 certificate\n");
 792                         goto end;
 793                         }
 794                 }
 795         ex=0;
 796 end:
 797         if (ex)
 798                 {
 799                 ERR_print_errors(bio_err);
 800                 }
 801         if ((req_conf != NULL) && (req_conf != config)) CONF_free(req_conf);
 802         BIO_free(in);
 803         BIO_free(out);
 804         EVP_PKEY_free(pkey);
 805         X509_REQ_free(req);
 806         X509_free(x509ss);
 807         X509V3_EXT_cleanup();
 808         OBJ_cleanup();
 809 #ifndef NO_DSA
 810         if (dsa_params != NULL) DSA_free(dsa_params);
 811 #endif
 812         EXIT(ex);
 813         }
 814
 815 static int make_REQ(X509_REQ *req, EVP_PKEY *pkey, int attribs)
 816         {
 817         int ret=0,i;
 818         char *p,*q;
 819         X509_REQ_INFO *ri;
 820         char buf[100];
 821         int nid,min,max;
 822         char *type,*def,*tmp,*value,*tmp_attr;
 823         STACK *sk,*attr=NULL;
 824         CONF_VALUE *v;
 825
 826         tmp=CONF_get_string(req_conf,SECTION,DISTINGUISHED_NAME);
 827         if (tmp == NULL)
 828                 {
 829                 BIO_printf(bio_err,"unable to find '%s' in config\n",
 830                         DISTINGUISHED_NAME);
 831                 goto err;
 832                 }
 833         sk=CONF_get_section(req_conf,tmp);
 834         if (sk == NULL)
 835                 {
 836                 BIO_printf(bio_err,"unable to get '%s' section\n",tmp);
 837                 goto err;
 838                 }
 839
 840         tmp_attr=CONF_get_string(req_conf,SECTION,ATTRIBUTES);
 841         if (tmp_attr == NULL)
 842                 attr=NULL;
 843         else
 844                 {
 845                 attr=CONF_get_section(req_conf,tmp_attr);
 846                 if (attr == NULL)
 847                         {
 848                         BIO_printf(bio_err,"unable to get '%s' section\n",tmp_attr);
 849                         goto err;
 850                         }
 851                 }
 852
 853         ri=req->req_info;
 854
 855         BIO_printf(bio_err,"You are about to be asked to enter information that will be incorporated\n");
 856         BIO_printf(bio_err,"into your certificate request.\n");
 857         BIO_printf(bio_err,"What you are about to enter is what is called a Distinguished Name or a DN.\n");
 858         BIO_printf(bio_err,"There are quite a few fields but you can leave some blank\n");
 859         BIO_printf(bio_err,"For some fields there will be a default value,\n");
 860         BIO_printf(bio_err,"If you enter '.', the field will be left blank.\n");
 861         BIO_printf(bio_err,"-----\n");
 862
 863         /* setup version number */
 864         if (!ASN1_INTEGER_set(ri->version,0L)) goto err; /* version 1 */
 865
 866         if (sk_num(sk))
 867                 {
 868                 i= -1;
 869 start:          for (;;)
 870                         {
 871                         i++;
 872                         if ((int)sk_num(sk) <= i) break;
 873
 874                         v=(CONF_VALUE *)sk_value(sk,i);
 875                         p=q=NULL;
 876                         type=v->name;
 877                         if(!check_end(type,"_min") || !check_end(type,"_max") ||
 878                                 !check_end(type,"_default") ||
 879                                          !check_end(type,"_value")) continue;
 880                         /* Skip past any leading X. X: X, etc to allow for
 881                          * multiple instances
 882                          */
 883                         for(p = v->name; *p ; p++)
 884                                 if ((*p == ':') || (*p == ',') ||
 885                                                          (*p == '.')) {
 886                                         p++;
 887                                         if(*p) type = p;
 888                                         break;
 889                                 }
 890                         /* If OBJ not recognised ignore it */
 891                         if ((nid=OBJ_txt2nid(type)) == NID_undef) goto start;
 892                         sprintf(buf,"%s_default",v->name);
 893                         if ((def=CONF_get_string(req_conf,tmp,buf)) == NULL)
 894                                 def="";
 895
 896                         sprintf(buf,"%s_value",v->name);
 897                         if ((value=CONF_get_string(req_conf,tmp,buf)) == NULL)
 898                                 value=NULL;
 899
 900                         sprintf(buf,"%s_min",v->name);
 901                         min=(int)CONF_get_number(req_conf,tmp,buf);
 902
 903                         sprintf(buf,"%s_max",v->name);
 904                         max=(int)CONF_get_number(req_conf,tmp,buf);
 905
 906                         if (!add_DN_object(ri->subject,v->value,def,value,nid,
 907                                 min,max))
 908                                 goto err;
 909                         }
 910                 if (sk_X509_NAME_ENTRY_num(ri->subject->entries) == 0)
 911                         {
 912                         BIO_printf(bio_err,"error, no objects specified in config file\n");
 913                         goto err;
 914                         }
 915
 916                 if (attribs)
 917                         {
 918                         if ((attr != NULL) && (sk_num(attr) > 0))
 919                                 {
 920                                 BIO_printf(bio_err,"\nPlease enter the following 'extra' attributes\n");
 921                                 BIO_printf(bio_err,"to be sent with your certificate request\n");
 922                                 }
 923
 924                         i= -1;
 925 start2:                 for (;;)
 926                                 {
 927                                 i++;
 928                                 if ((attr == NULL) || ((int)sk_num(attr) <= i))
 929                                         break;
 930
 931                                 v=(CONF_VALUE *)sk_value(attr,i);
 932                                 type=v->name;
 933                                 if ((nid=OBJ_txt2nid(type)) == NID_undef)
 934                                         goto start2;
 935
 936                                 sprintf(buf,"%s_default",type);
 937                                 if ((def=CONF_get_string(req_conf,tmp_attr,buf))
 938                                         == NULL)
 939                                         def="";
 940
 941                                 sprintf(buf,"%s_value",type);
 942                                 if ((value=CONF_get_string(req_conf,tmp_attr,buf))
 943                                         == NULL)
 944                                         value=NULL;
 945
 946                                 sprintf(buf,"%s_min",type);
 947                                 min=(int)CONF_get_number(req_conf,tmp_attr,buf);
 948
 949                                 sprintf(buf,"%s_max",type);
 950                                 max=(int)CONF_get_number(req_conf,tmp_attr,buf);
 951
 952                                 if (!add_attribute_object(ri->attributes,
 953                                         v->value,def,value,nid,min,max))
 954                                         goto err;
 955                                 }
 956                         }
 957                 }
 958         else
 959                 {
 960                 BIO_printf(bio_err,"No template, please set one up.\n");
 961                 goto err;
 962                 }
 963
 964         X509_REQ_set_pubkey(req,pkey);
 965
 966         ret=1;
 967 err:
 968         return(ret);
 969         }
 970
 971 static int add_DN_object(X509_NAME *n, char *text, char *def, char *value,
 972              int nid, int min, int max)
 973         {
 974         int i,j,ret=0;
 975         X509_NAME_ENTRY *ne=NULL;
 976         MS_STATIC char buf[1024];
 977
 978         BIO_printf(bio_err,"%s [%s]:",text,def);
 979         BIO_flush(bio_err);
 980         if (value != NULL)
 981                 {
 982                 strcpy(buf,value);
 983                 strcat(buf,"\n");
 984                 BIO_printf(bio_err,"%s\n",value);
 985                 }
 986         else
 987                 {
 988                 buf[0]='\0';
 989                 fgets(buf,1024,stdin);
 990                 }
 991
 992         if (buf[0] == '\0') return(0);
 993         else if (buf[0] == '\n')
 994                 {
 995                 if ((def == NULL) || (def[0] == '\0'))
 996                         return(1);
 997                 strcpy(buf,def);
 998                 strcat(buf,"\n");
 999                 }
1000         else if ((buf[0] == '.') && (buf[1] == '\n')) return(1);
1001
1002         i=strlen(buf);
1003         if (buf[i-1] != '\n')
1004                 {
1005                 BIO_printf(bio_err,"weird input :-(\n");
1006                 return(0);
1007                 }
1008         buf[--i]='\0';
1009
1010         j=ASN1_PRINTABLE_type((unsigned char *)buf,-1);
1011         if (req_fix_data(nid,&j,i,min,max) == 0)
1012                 goto err;
1013         if ((ne=X509_NAME_ENTRY_create_by_NID(NULL,nid,j,(unsigned char *)buf,
1014                 strlen(buf)))
1015                 == NULL) goto err;
1016         if (!X509_NAME_add_entry(n,ne,X509_NAME_entry_count(n),0))
1017                 goto err;
1018
1019         ret=1;
1020 err:
1021         if (ne != NULL) X509_NAME_ENTRY_free(ne);
1022         return(ret);
1023         }
1024
1025 static int add_attribute_object(STACK *n, char *text, char *def, char *value,
1026              int nid, int min, int max)
1027         {
1028         int i,z;
1029         X509_ATTRIBUTE *xa=NULL;
1030         static char buf[1024];
1031         ASN1_BIT_STRING *bs=NULL;
1032         ASN1_TYPE *at=NULL;
1033
1034 start:
1035         BIO_printf(bio_err,"%s [%s]:",text,def);
1036         BIO_flush(bio_err);
1037         if (value != NULL)
1038                 {
1039                 strcpy(buf,value);
1040                 strcat(buf,"\n");
1041                 BIO_printf(bio_err,"%s\n",value);
1042                 }
1043         else
1044                 {
1045                 buf[0]='\0';
1046                 fgets(buf,1024,stdin);
1047                 }
1048
1049         if (buf[0] == '\0') return(0);
1050         else if (buf[0] == '\n')
1051                 {
1052                 if ((def == NULL) || (def[0] == '\0'))
1053                         return(1);
1054                 strcpy(buf,def);
1055                 strcat(buf,"\n");
1056                 }
1057         else if ((buf[0] == '.') && (buf[1] == '\n')) return(1);
1058
1059         i=strlen(buf);
1060         if (buf[i-1] != '\n')
1061                 {
1062                 BIO_printf(bio_err,"weird input :-(\n");
1063                 return(0);
1064                 }
1065         buf[--i]='\0';
1066
1067         /* add object plus value */
1068         if ((xa=X509_ATTRIBUTE_new()) == NULL)
1069                 goto err;
1070         if ((xa->value.set=sk_new_null()) == NULL)
1071                 goto err;
1072         xa->set=1;
1073
1074         if (xa->object != NULL) ASN1_OBJECT_free(xa->object);
1075         xa->object=OBJ_nid2obj(nid);
1076
1077         if ((bs=ASN1_BIT_STRING_new()) == NULL) goto err;
1078
1079         bs->type=ASN1_PRINTABLE_type((unsigned char *)buf,-1);
1080
1081         z=req_fix_data(nid,&bs->type,i,min,max);
1082         if (z == 0)
1083                 {
1084                 if (value == NULL)
1085                         goto start;
1086                 else    goto err;
1087                 }
1088
1089         if (!ASN1_STRING_set(bs,(unsigned char *)buf,i+1))
1090                 { BIO_printf(bio_err,"Malloc failure\n"); goto err; }
1091
1092         if ((at=ASN1_TYPE_new()) == NULL)
1093                 { BIO_printf(bio_err,"Malloc failure\n"); goto err; }
1094
1095         ASN1_TYPE_set(at,bs->type,(char *)bs);
1096         sk_push(xa->value.set,(char *)at);
1097         bs=NULL;
1098         at=NULL;
1099         /* only one item per attribute */
1100
1101         if (!sk_push(n,(char *)xa)) goto err;
1102         return(1);
1103 err:
1104         if (xa != NULL) X509_ATTRIBUTE_free(xa);
1105         if (at != NULL) ASN1_TYPE_free(at);
1106         if (bs != NULL) ASN1_BIT_STRING_free(bs);
1107         return(0);
1108         }
1109
1110 static void MS_CALLBACK req_cb(int p, int n, char *arg)
1111         {
1112         char c='*';
1113
1114         if (p == 0) c='.';
1115         if (p == 1) c='+';
1116         if (p == 2) c='*';
1117         if (p == 3) c='\n';
1118         BIO_write((BIO *)arg,&c,1);
1119         BIO_flush((BIO *)arg);
1120 #ifdef LINT
1121         p=n;
1122 #endif
1123         }
1124
1125 static int req_fix_data(int nid, int *type, int len, int min, int max)
1126         {
1127         if (nid == NID_pkcs9_emailAddress)
1128                 *type=V_ASN1_IA5STRING;
1129         if ((nid == NID_commonName) && (*type == V_ASN1_IA5STRING))
1130                 *type=V_ASN1_T61STRING;
1131         if ((nid == NID_pkcs9_challengePassword) &&
1132                 (*type == V_ASN1_IA5STRING))
1133                 *type=V_ASN1_T61STRING;
1134
1135         if ((nid == NID_pkcs9_unstructuredName) &&
1136                 (*type == V_ASN1_T61STRING))
1137                 {
1138                 BIO_printf(bio_err,"invalid characters in string, please re-enter the string\n");
1139                 return(0);
1140                 }
1141         if (nid == NID_pkcs9_unstructuredName)
1142                 *type=V_ASN1_IA5STRING;
1143
1144         if (len < min)
1145                 {
1146                 BIO_printf(bio_err,"string is too short, it needs to be at least %d bytes long\n",min);
1147                 return(0);
1148                 }
1149         if ((max != 0) && (len > max))
1150                 {
1151                 BIO_printf(bio_err,"string is too long, it needs to be less than  %d bytes long\n",max);
1152                 return(0);
1153                 }
1154         return(1);
1155         }
1156
1157 /* Check if the end of a string matches 'end' */
1158 static int check_end(char *str, char *end)
1159 {
1160         int elen, slen;
1161         char *tmp;
1162         elen = strlen(end);
1163         slen = strlen(str);
1164         if(elen > slen) return 1;
1165         tmp = str + slen - elen;
1166         return strcmp(tmp, end);
1167 }
1168
1169 static int add_oid_section(LHASH *conf)
1170 {
1171         char *p;
1172         STACK *sktmp;
1173         CONF_VALUE *cnf;
1174         int i;
1175         if(!(p=CONF_get_string(conf,NULL,"oid_section"))) return 1;
1176         if(!(sktmp = CONF_get_section(conf, p))) {
1177                 BIO_printf(bio_err, "problem loading oid section %s\n", p);
1178                 return 0;
1179         }
1180         for(i = 0; i < sk_num(sktmp); i++) {
1181                 cnf = (CONF_VALUE *)sk_value(sktmp, i);
1182                 if(OBJ_create(cnf->value, cnf->name, cnf->name) == NID_undef) {
1183                         BIO_printf(bio_err, "problem creating object %s=%s\n",
1184                                                          cnf->name, cnf->value);
1185                         return 0;
1186                 }
1187         }
1188         return 1;
1189 }