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_OF(X509_ATTRIBUTE) *n, char *text,
 112                                 char *def, char *value, int nid, int min,
 113                                 int max);
 114 static int add_DN_object(X509_NAME *n, char *text, char *def, char *value,
 115         int nid,int min,int max);
 116 static void MS_CALLBACK req_cb(int p,int n,void *arg);
 117 static int req_fix_data(int nid,int *type,int len,int min,int max);
 118 static int check_end(char *str, char *end);
 119 static int add_oid_section(LHASH *conf);
 120 #ifndef MONOLITH
 121 static char *default_config_file=NULL;
 122 static LHASH *config=NULL;
 123 #endif
 124 static LHASH *req_conf=NULL;
 125
 126 #define TYPE_RSA        1
 127 #define TYPE_DSA        2
 128 #define TYPE_DH         3
 129
 130 int MAIN(int argc, char **argv)
 131         {
 132 #ifndef NO_DSA
 133         DSA *dsa_params=NULL;
 134 #endif
 135         int ex=1,x509=0,days=30;
 136         X509 *x509ss=NULL;
 137         X509_REQ *req=NULL;
 138         EVP_PKEY *pkey=NULL;
 139         int i,badops=0,newreq=0,newkey= -1,pkey_type=0;
 140         BIO *in=NULL,*out=NULL;
 141         int informat,outformat,verify=0,noout=0,text=0,keyform=FORMAT_PEM;
 142         int nodes=0,kludge=0;
 143         char *infile,*outfile,*prog,*keyfile=NULL,*template=NULL,*keyout=NULL;
 144         char *extensions = NULL;
 145         EVP_CIPHER *cipher=NULL;
 146         int modulus=0;
 147         char *p;
 148         const EVP_MD *md_alg=NULL,*digest=EVP_md5();
 149 #ifndef MONOLITH
 150         MS_STATIC char config_name[256];
 151 #endif
 152
 153 #ifndef NO_DES
 154         cipher=EVP_des_ede3_cbc();
 155 #endif
 156         apps_startup();
 157
 158         if (bio_err == NULL)
 159                 if ((bio_err=BIO_new(BIO_s_file())) != NULL)
 160                         BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);
 161
 162         infile=NULL;
 163         outfile=NULL;
 164         informat=FORMAT_PEM;
 165         outformat=FORMAT_PEM;
 166
 167         prog=argv[0];
 168         argc--;
 169         argv++;
 170         while (argc >= 1)
 171                 {
 172                 if      (strcmp(*argv,"-inform") == 0)
 173                         {
 174                         if (--argc < 1) goto bad;
 175                         informat=str2fmt(*(++argv));
 176                         }
 177                 else if (strcmp(*argv,"-outform") == 0)
 178                         {
 179                         if (--argc < 1) goto bad;
 180                         outformat=str2fmt(*(++argv));
 181                         }
 182                 else if (strcmp(*argv,"-key") == 0)
 183                         {
 184                         if (--argc < 1) goto bad;
 185                         keyfile= *(++argv);
 186                         }
 187                 else if (strcmp(*argv,"-new") == 0)
 188                         {
 189                         pkey_type=TYPE_RSA;
 190                         newreq=1;
 191                         }
 192                 else if (strcmp(*argv,"-config") == 0)
 193                         {
 194                         if (--argc < 1) goto bad;
 195                         template= *(++argv);
 196                         }
 197                 else if (strcmp(*argv,"-keyform") == 0)
 198                         {
 199                         if (--argc < 1) goto bad;
 200                         keyform=str2fmt(*(++argv));
 201                         }
 202                 else if (strcmp(*argv,"-in") == 0)
 203                         {
 204                         if (--argc < 1) goto bad;
 205                         infile= *(++argv);
 206                         }
 207                 else if (strcmp(*argv,"-out") == 0)
 208                         {
 209                         if (--argc < 1) goto bad;
 210                         outfile= *(++argv);
 211                         }
 212                 else if (strcmp(*argv,"-keyout") == 0)
 213                         {
 214                         if (--argc < 1) goto bad;
 215                         keyout= *(++argv);
 216                         }
 217                 else if (strcmp(*argv,"-newkey") == 0)
 218                         {
 219                         int is_numeric;
 220
 221                         if (--argc < 1) goto bad;
 222                         p= *(++argv);
 223                         is_numeric = p[0] >= '0' && p[0] <= '9';
 224                         if (strncmp("rsa:",p,4) == 0 || is_numeric)
 225                                 {
 226                                 pkey_type=TYPE_RSA;
 227                                 if(!is_numeric)
 228                                     p+=4;
 229                                 newkey= atoi(p);
 230                                 }
 231                         else
 232 #ifndef NO_DSA
 233                                 if (strncmp("dsa:",p,4) == 0)
 234                                 {
 235                                 X509 *xtmp=NULL;
 236                                 EVP_PKEY *dtmp;
 237
 238                                 pkey_type=TYPE_DSA;
 239                                 p+=4;
 240                                 if ((in=BIO_new_file(p,"r")) == NULL)
 241                                         {
 242                                         perror(p);
 243                                         goto end;
 244                                         }
 245                                 if ((dsa_params=PEM_read_bio_DSAparams(in,NULL,NULL)) == NULL)
 246                                         {
 247                                         ERR_clear_error();
 248                                         BIO_reset(in);
 249                                         if ((xtmp=PEM_read_bio_X509(in,NULL,NULL)) == NULL)
 250                                                 {
 251                                                 BIO_printf(bio_err,"unable to load DSA parameters from file\n");
 252                                                 goto end;
 253                                                 }
 254
 255                                         dtmp=X509_get_pubkey(xtmp);
 256                                         if (dtmp->type == EVP_PKEY_DSA)
 257                                                 dsa_params=DSAparams_dup(dtmp->pkey.dsa);
 258                                         EVP_PKEY_free(dtmp);
 259                                         X509_free(xtmp);
 260                                         if (dsa_params == NULL)
 261                                                 {
 262                                                 BIO_printf(bio_err,"Certificate does not contain DSA parameters\n");
 263                                                 goto end;
 264                                                 }
 265                                         }
 266                                 BIO_free(in);
 267                                 newkey=BN_num_bits(dsa_params->p);
 268                                 in=NULL;
 269                                 }
 270                         else
 271 #endif
 272 #ifndef NO_DH
 273                                 if (strncmp("dh:",p,4) == 0)
 274                                 {
 275                                 pkey_type=TYPE_DH;
 276                                 p+=3;
 277                                 }
 278                         else
 279 #endif
 280                                 pkey_type=TYPE_RSA;
 281
 282                         newreq=1;
 283                         }
 284                 else if (strcmp(*argv,"-modulus") == 0)
 285                         modulus=1;
 286                 else if (strcmp(*argv,"-verify") == 0)
 287                         verify=1;
 288                 else if (strcmp(*argv,"-nodes") == 0)
 289                         nodes=1;
 290                 else if (strcmp(*argv,"-noout") == 0)
 291                         noout=1;
 292                 else if (strcmp(*argv,"-text") == 0)
 293                         text=1;
 294                 else if (strcmp(*argv,"-x509") == 0)
 295                         x509=1;
 296                 else if (strcmp(*argv,"-asn1-kludge") == 0)
 297                         kludge=1;
 298                 else if (strcmp(*argv,"-no-asn1-kludge") == 0)
 299                         kludge=0;
 300                 else if (strcmp(*argv,"-days") == 0)
 301                         {
 302                         if (--argc < 1) goto bad;
 303                         days= atoi(*(++argv));
 304                         if (days == 0) days=30;
 305                         }
 306                 else if ((md_alg=EVP_get_digestbyname(&((*argv)[1]))) != NULL)
 307                         {
 308                         /* ok */
 309                         digest=md_alg;
 310                         }
 311                 else
 312
 313                         {
 314                         BIO_printf(bio_err,"unknown option %s\n",*argv);
 315                         badops=1;
 316                         break;
 317                         }
 318                 argc--;
 319                 argv++;
 320                 }
 321
 322         if (badops)
 323                 {
 324 bad:
 325                 BIO_printf(bio_err,"%s [options] <infile >outfile\n",prog);
 326                 BIO_printf(bio_err,"where options  are\n");
 327                 BIO_printf(bio_err," -inform arg    input format - one of DER TXT PEM\n");
 328                 BIO_printf(bio_err," -outform arg   output format - one of DER TXT PEM\n");
 329                 BIO_printf(bio_err," -in arg        input file\n");
 330                 BIO_printf(bio_err," -out arg       output file\n");
 331                 BIO_printf(bio_err," -text          text form of request\n");
 332                 BIO_printf(bio_err," -noout         do not output REQ\n");
 333                 BIO_printf(bio_err," -verify        verify signature on REQ\n");
 334                 BIO_printf(bio_err," -modulus       RSA modulus\n");
 335                 BIO_printf(bio_err," -nodes         don't encrypt the output key\n");
 336                 BIO_printf(bio_err," -key file  use the private key contained in file\n");
 337                 BIO_printf(bio_err," -keyform arg   key file format\n");
 338                 BIO_printf(bio_err," -keyout arg    file to send the key to\n");
 339                 BIO_printf(bio_err," -newkey rsa:bits generate a new RSA key of 'bits' in size\n");
 340                 BIO_printf(bio_err," -newkey dsa:file generate a new DSA key, parameters taken from CA in 'file'\n");
 341
 342                 BIO_printf(bio_err," -[digest]      Digest to sign with (md5, sha1, md2, mdc2)\n");
 343                 BIO_printf(bio_err," -config file   request template file.\n");
 344                 BIO_printf(bio_err," -new           new request.\n");
 345                 BIO_printf(bio_err," -x509          output a x509 structure instead of a cert. req.\n");
 346                 BIO_printf(bio_err," -days          number of days a x509 generated by -x509 is valid for.\n");
 347                 BIO_printf(bio_err," -asn1-kludge   Output the 'request' in a format that is wrong but some CA's\n");
 348                 BIO_printf(bio_err,"                have been reported as requiring\n");
 349                 BIO_printf(bio_err,"                [ It is now always turned on but can be turned off with -no-asn1-kludge ]\n");
 350                 goto end;
 351                 }
 352
 353         ERR_load_crypto_strings();
 354         X509V3_add_standard_extensions();
 355
 356 #ifndef MONOLITH
 357         /* Lets load up our environment a little */
 358         p=getenv("OPENSSL_CONF");
 359         if (p == NULL)
 360                 p=getenv("SSLEAY_CONF");
 361         if (p == NULL)
 362                 {
 363                 strcpy(config_name,X509_get_default_cert_area());
 364 #ifndef VMS
 365                 strcat(config_name,"/");
 366 #endif
 367                 strcat(config_name,OPENSSL_CONF);
 368                 p=config_name;
 369                 }
 370         default_config_file=p;
 371         config=CONF_load(config,p,NULL);
 372 #endif
 373
 374         if (template != NULL)
 375                 {
 376                 long errline;
 377
 378                 BIO_printf(bio_err,"Using configuration from %s\n",template);
 379                 req_conf=CONF_load(NULL,template,&errline);
 380                 if (req_conf == NULL)
 381                         {
 382                         BIO_printf(bio_err,"error on line %ld of %s\n",errline,template);
 383                         goto end;
 384                         }
 385                 }
 386         else
 387                 {
 388                 req_conf=config;
 389                 BIO_printf(bio_err,"Using configuration from %s\n",
 390                         default_config_file);
 391                 if (req_conf == NULL)
 392                         {
 393                         BIO_printf(bio_err,"Unable to load config info\n");
 394                         }
 395                 }
 396
 397         if (req_conf != NULL)
 398                 {
 399                 p=CONF_get_string(req_conf,NULL,"oid_file");
 400                 if (p != NULL)
 401                         {
 402                         BIO *oid_bio;
 403
 404                         oid_bio=BIO_new_file(p,"r");
 405                         if (oid_bio == NULL)
 406                                 {
 407                                 /*
 408                                 BIO_printf(bio_err,"problems opening %s for extra oid's\n",p);
 409                                 ERR_print_errors(bio_err);
 410                                 */
 411                                 }
 412                         else
 413                                 {
 414                                 OBJ_create_objects(oid_bio);
 415                                 BIO_free(oid_bio);
 416                                 }
 417                         }
 418                 }
 419                 if(!add_oid_section(req_conf)) goto end;
 420
 421         if ((md_alg == NULL) &&
 422                 ((p=CONF_get_string(req_conf,SECTION,"default_md")) != NULL))
 423                 {
 424                 if ((md_alg=EVP_get_digestbyname(p)) != NULL)
 425                         digest=md_alg;
 426                 }
 427
 428         extensions = CONF_get_string(req_conf, SECTION, V3_EXTENSIONS);
 429         if(extensions) {
 430                 /* Check syntax of file */
 431                 X509V3_CTX ctx;
 432                 X509V3_set_ctx_test(&ctx);
 433                 X509V3_set_conf_lhash(&ctx, req_conf);
 434                 if(!X509V3_EXT_add_conf(req_conf, &ctx, extensions, NULL)) {
 435                         BIO_printf(bio_err,
 436                          "Error Loading extension section %s\n", extensions);
 437                         goto end;
 438                 }
 439         }
 440
 441         in=BIO_new(BIO_s_file());
 442         out=BIO_new(BIO_s_file());
 443         if ((in == NULL) || (out == NULL))
 444                 goto end;
 445
 446         if (keyfile != NULL)
 447                 {
 448                 if (BIO_read_filename(in,keyfile) <= 0)
 449                         {
 450                         perror(keyfile);
 451                         goto end;
 452                         }
 453
 454 /*              if (keyform == FORMAT_ASN1)
 455                         rsa=d2i_RSAPrivateKey_bio(in,NULL);
 456                 else */
 457                 if (keyform == FORMAT_PEM)
 458                         pkey=PEM_read_bio_PrivateKey(in,NULL,NULL);
 459                 else
 460                         {
 461                         BIO_printf(bio_err,"bad input format specified for X509 request\n");
 462                         goto end;
 463                         }
 464
 465                 if (pkey == NULL)
 466                         {
 467                         BIO_printf(bio_err,"unable to load Private key\n");
 468                         goto end;
 469                         }
 470                 }
 471
 472         if (newreq && (pkey == NULL))
 473                 {
 474                 char *randfile;
 475                 char buffer[200];
 476
 477                 if ((randfile=CONF_get_string(req_conf,SECTION,"RANDFILE")) == NULL)
 478                         randfile=RAND_file_name(buffer,200);
 479 #ifdef WINDOWS
 480                 BIO_printf(bio_err,"Loading 'screen' into random state -");
 481                 BIO_flush(bio_err);
 482                 RAND_screen();
 483                 BIO_printf(bio_err," done\n");
 484 #endif
 485                 if ((randfile == NULL) || !RAND_load_file(randfile,1024L*1024L))
 486                         {
 487                         BIO_printf(bio_err,"unable to load 'random state'\n");
 488                         BIO_printf(bio_err,"What this means is that the random number generator has not been seeded\n");
 489                         BIO_printf(bio_err,"with much random data.\n");
 490                         BIO_printf(bio_err,"Consider setting the RANDFILE environment variable to point at a file that\n");
 491                         BIO_printf(bio_err,"'random' data can be kept in.\n");
 492                         }
 493                 if (newkey <= 0)
 494                         {
 495                         newkey=(int)CONF_get_number(req_conf,SECTION,BITS);
 496                         if (newkey <= 0)
 497                                 newkey=DEFAULT_KEY_LENGTH;
 498                         }
 499
 500                 if (newkey < MIN_KEY_LENGTH)
 501                         {
 502                         BIO_printf(bio_err,"private key length is too short,\n");
 503                         BIO_printf(bio_err,"it needs to be at least %d bits, not %d\n",MIN_KEY_LENGTH,newkey);
 504                         goto end;
 505                         }
 506                 BIO_printf(bio_err,"Generating a %d bit %s private key\n",
 507                         newkey,(pkey_type == TYPE_RSA)?"RSA":"DSA");
 508
 509                 if ((pkey=EVP_PKEY_new()) == NULL) goto end;
 510
 511 #ifndef NO_RSA
 512                 if (pkey_type == TYPE_RSA)
 513                         {
 514                         if (!EVP_PKEY_assign_RSA(pkey,
 515                                 RSA_generate_key(newkey,0x10001,
 516                                         req_cb,bio_err)))
 517                                 goto end;
 518                         }
 519                 else
 520 #endif
 521 #ifndef NO_DSA
 522                         if (pkey_type == TYPE_DSA)
 523                         {
 524                         if (!DSA_generate_key(dsa_params)) goto end;
 525                         if (!EVP_PKEY_assign_DSA(pkey,dsa_params)) goto end;
 526                         dsa_params=NULL;
 527                         }
 528 #endif
 529
 530                 if ((randfile == NULL) || (RAND_write_file(randfile) == 0))
 531                         BIO_printf(bio_err,"unable to write 'random state'\n");
 532
 533                 if (pkey == NULL) goto end;
 534
 535                 if (keyout == NULL)
 536                         keyout=CONF_get_string(req_conf,SECTION,KEYFILE);
 537
 538                 if (keyout == NULL)
 539                         {
 540                         BIO_printf(bio_err,"writing new private key to stdout\n");
 541                         BIO_set_fp(out,stdout,BIO_NOCLOSE);
 542                         }
 543                 else
 544                         {
 545                         BIO_printf(bio_err,"writing new private key to '%s'\n",keyout);
 546                         if (BIO_write_filename(out,keyout) <= 0)
 547                                 {
 548                                 perror(keyout);
 549                                 goto end;
 550                                 }
 551                         }
 552
 553                 p=CONF_get_string(req_conf,SECTION,"encrypt_rsa_key");
 554                 if (p == NULL)
 555                         p=CONF_get_string(req_conf,SECTION,"encrypt_key");
 556                 if ((p != NULL) && (strcmp(p,"no") == 0))
 557                         cipher=NULL;
 558                 if (nodes) cipher=NULL;
 559
 560                 i=0;
 561 loop:
 562                 if (!PEM_write_bio_PrivateKey(out,pkey,cipher,
 563                         NULL,0,NULL))
 564                         {
 565                         if ((ERR_GET_REASON(ERR_peek_error()) ==
 566                                 PEM_R_PROBLEMS_GETTING_PASSWORD) && (i < 3))
 567                                 {
 568                                 ERR_clear_error();
 569                                 i++;
 570                                 goto loop;
 571                                 }
 572                         goto end;
 573                         }
 574                 BIO_printf(bio_err,"-----\n");
 575                 }
 576
 577         if (!newreq)
 578                 {
 579                 /* Since we are using a pre-existing certificate
 580                  * request, the kludge 'format' info should not be
 581                  * changed. */
 582                 kludge= -1;
 583                 if (infile == NULL)
 584                         BIO_set_fp(in,stdin,BIO_NOCLOSE);
 585                 else
 586                         {
 587                         if (BIO_read_filename(in,infile) <= 0)
 588                                 {
 589                                 perror(infile);
 590                                 goto end;
 591                                 }
 592                         }
 593
 594                 if      (informat == FORMAT_ASN1)
 595                         req=d2i_X509_REQ_bio(in,NULL);
 596                 else if (informat == FORMAT_PEM)
 597                         req=PEM_read_bio_X509_REQ(in,NULL,NULL);
 598                 else
 599                         {
 600                         BIO_printf(bio_err,"bad input format specified for X509 request\n");
 601                         goto end;
 602                         }
 603                 if (req == NULL)
 604                         {
 605                         BIO_printf(bio_err,"unable to load X509 request\n");
 606                         goto end;
 607                         }
 608                 }
 609
 610         if (newreq || x509)
 611                 {
 612 #ifndef NO_DSA
 613                 if (pkey->type == EVP_PKEY_DSA)
 614                         digest=EVP_dss1();
 615 #endif
 616
 617                 if (pkey == NULL)
 618                         {
 619                         BIO_printf(bio_err,"you need to specify a private key\n");
 620                         goto end;
 621                         }
 622                 if (req == NULL)
 623                         {
 624                         req=X509_REQ_new();
 625                         if (req == NULL)
 626                                 {
 627                                 goto end;
 628                                 }
 629
 630                         i=make_REQ(req,pkey,!x509);
 631                         if (kludge >= 0)
 632                                 req->req_info->req_kludge=kludge;
 633                         if (!i)
 634                                 {
 635                                 BIO_printf(bio_err,"problems making Certificate Request\n");
 636                                 goto end;
 637                                 }
 638                         }
 639                 if (x509)
 640                         {
 641                         EVP_PKEY *tmppkey;
 642                         X509V3_CTX ext_ctx;
 643                         if ((x509ss=X509_new()) == NULL) goto end;
 644
 645                         /* Set version to V3 */
 646                         if(!X509_set_version(x509ss, 2)) goto end;
 647                         ASN1_INTEGER_set(X509_get_serialNumber(x509ss),0L);
 648
 649                         X509_set_issuer_name(x509ss,
 650                                 X509_REQ_get_subject_name(req));
 651                         X509_gmtime_adj(X509_get_notBefore(x509ss),0);
 652                         X509_gmtime_adj(X509_get_notAfter(x509ss),
 653                                 (long)60*60*24*days);
 654                         X509_set_subject_name(x509ss,
 655                                 X509_REQ_get_subject_name(req));
 656                         tmppkey = X509_REQ_get_pubkey(req);
 657                         X509_set_pubkey(x509ss,tmppkey);
 658                         EVP_PKEY_free(tmppkey);
 659
 660                         /* Set up V3 context struct */
 661
 662                         X509V3_set_ctx(&ext_ctx, x509ss, x509ss, NULL, NULL, 0);
 663                         X509V3_set_conf_lhash(&ext_ctx, req_conf);
 664
 665                         /* Add extensions */
 666                         if(extensions && !X509V3_EXT_add_conf(req_conf,
 667                                         &ext_ctx, extensions, x509ss))
 668                             {
 669                             BIO_printf(bio_err,
 670                                        "Error Loading extension section %s\n",
 671                                        extensions);
 672                             goto end;
 673                             }
 674
 675                         if (!(i=X509_sign(x509ss,pkey,digest)))
 676                                 goto end;
 677                         }
 678                 else
 679                         {
 680                         if (!(i=X509_REQ_sign(req,pkey,digest)))
 681                                 goto end;
 682                         }
 683                 }
 684
 685         if (verify && !x509)
 686                 {
 687                 int tmp=0;
 688
 689                 if (pkey == NULL)
 690                         {
 691                         pkey=X509_REQ_get_pubkey(req);
 692                         tmp=1;
 693                         if (pkey == NULL) goto end;
 694                         }
 695
 696                 i=X509_REQ_verify(req,pkey);
 697                 if (tmp) {
 698                         EVP_PKEY_free(pkey);
 699                         pkey=NULL;
 700                 }
 701
 702                 if (i < 0)
 703                         {
 704                         goto end;
 705                         }
 706                 else if (i == 0)
 707                         {
 708                         BIO_printf(bio_err,"verify failure\n");
 709                         }
 710                 else /* if (i > 0) */
 711                         BIO_printf(bio_err,"verify OK\n");
 712                 }
 713
 714         if (noout && !text && !modulus)
 715                 {
 716                 ex=0;
 717                 goto end;
 718                 }
 719
 720         if (outfile == NULL)
 721                 BIO_set_fp(out,stdout,BIO_NOCLOSE);
 722         else
 723                 {
 724                 if ((keyout != NULL) && (strcmp(outfile,keyout) == 0))
 725                         i=(int)BIO_append_filename(out,outfile);
 726                 else
 727                         i=(int)BIO_write_filename(out,outfile);
 728                 if (!i)
 729                         {
 730                         perror(outfile);
 731                         goto end;
 732                         }
 733                 }
 734
 735         if (text)
 736                 {
 737                 if (x509)
 738                         X509_print(out,x509ss);
 739                 else
 740                         X509_REQ_print(out,req);
 741                 }
 742
 743         if (modulus)
 744                 {
 745                 EVP_PKEY *pubkey;
 746
 747                 if (x509)
 748                         pubkey=X509_get_pubkey(x509ss);
 749                 else
 750                         pubkey=X509_REQ_get_pubkey(req);
 751                 if (pubkey == NULL)
 752                         {
 753                         fprintf(stdout,"Modulus=unavailable\n");
 754                         goto end;
 755                         }
 756                 fprintf(stdout,"Modulus=");
 757 #ifndef NO_RSA
 758                 if (pubkey->type == EVP_PKEY_RSA)
 759                         BN_print(out,pubkey->pkey.rsa->n);
 760                 else
 761 #endif
 762                         fprintf(stdout,"Wrong Algorithm type");
 763                 fprintf(stdout,"\n");
 764                 }
 765
 766         if (!noout && !x509)
 767                 {
 768                 if      (outformat == FORMAT_ASN1)
 769                         i=i2d_X509_REQ_bio(out,req);
 770                 else if (outformat == FORMAT_PEM)
 771                         i=PEM_write_bio_X509_REQ(out,req);
 772                 else    {
 773                         BIO_printf(bio_err,"bad output format specified for outfile\n");
 774                         goto end;
 775                         }
 776                 if (!i)
 777                         {
 778                         BIO_printf(bio_err,"unable to write X509 request\n");
 779                         goto end;
 780                         }
 781                 }
 782         if (!noout && x509 && (x509ss != NULL))
 783                 {
 784                 if      (outformat == FORMAT_ASN1)
 785                         i=i2d_X509_bio(out,x509ss);
 786                 else if (outformat == FORMAT_PEM)
 787                         i=PEM_write_bio_X509(out,x509ss);
 788                 else    {
 789                         BIO_printf(bio_err,"bad output format specified for outfile\n");
 790                         goto end;
 791                         }
 792                 if (!i)
 793                         {
 794                         BIO_printf(bio_err,"unable to write X509 certificate\n");
 795                         goto end;
 796                         }
 797                 }
 798         ex=0;
 799 end:
 800         if (ex)
 801                 {
 802                 ERR_print_errors(bio_err);
 803                 }
 804         if ((req_conf != NULL) && (req_conf != config)) CONF_free(req_conf);
 805         BIO_free(in);
 806         BIO_free(out);
 807         EVP_PKEY_free(pkey);
 808         X509_REQ_free(req);
 809         X509_free(x509ss);
 810         X509V3_EXT_cleanup();
 811         OBJ_cleanup();
 812 #ifndef NO_DSA
 813         if (dsa_params != NULL) DSA_free(dsa_params);
 814 #endif
 815         EXIT(ex);
 816         }
 817
 818 static int make_REQ(X509_REQ *req, EVP_PKEY *pkey, int attribs)
 819         {
 820         int ret=0,i;
 821         char *p,*q;
 822         X509_REQ_INFO *ri;
 823         char buf[100];
 824         int nid,min,max;
 825         char *type,*def,*tmp,*value,*tmp_attr;
 826         STACK *sk,*attr=NULL;
 827         CONF_VALUE *v;
 828
 829         tmp=CONF_get_string(req_conf,SECTION,DISTINGUISHED_NAME);
 830         if (tmp == NULL)
 831                 {
 832                 BIO_printf(bio_err,"unable to find '%s' in config\n",
 833                         DISTINGUISHED_NAME);
 834                 goto err;
 835                 }
 836         sk=CONF_get_section(req_conf,tmp);
 837         if (sk == NULL)
 838                 {
 839                 BIO_printf(bio_err,"unable to get '%s' section\n",tmp);
 840                 goto err;
 841                 }
 842
 843         tmp_attr=CONF_get_string(req_conf,SECTION,ATTRIBUTES);
 844         if (tmp_attr == NULL)
 845                 attr=NULL;
 846         else
 847                 {
 848                 attr=CONF_get_section(req_conf,tmp_attr);
 849                 if (attr == NULL)
 850                         {
 851                         BIO_printf(bio_err,"unable to get '%s' section\n",tmp_attr);
 852                         goto err;
 853                         }
 854                 }
 855
 856         ri=req->req_info;
 857
 858         BIO_printf(bio_err,"You are about to be asked to enter information that will be incorporated\n");
 859         BIO_printf(bio_err,"into your certificate request.\n");
 860         BIO_printf(bio_err,"What you are about to enter is what is called a Distinguished Name or a DN.\n");
 861         BIO_printf(bio_err,"There are quite a few fields but you can leave some blank\n");
 862         BIO_printf(bio_err,"For some fields there will be a default value,\n");
 863         BIO_printf(bio_err,"If you enter '.', the field will be left blank.\n");
 864         BIO_printf(bio_err,"-----\n");
 865
 866         /* setup version number */
 867         if (!ASN1_INTEGER_set(ri->version,0L)) goto err; /* version 1 */
 868
 869         if (sk_num(sk))
 870                 {
 871                 i= -1;
 872 start:          for (;;)
 873                         {
 874                         i++;
 875                         if ((int)sk_num(sk) <= i) break;
 876
 877                         v=(CONF_VALUE *)sk_value(sk,i);
 878                         p=q=NULL;
 879                         type=v->name;
 880                         if(!check_end(type,"_min") || !check_end(type,"_max") ||
 881                                 !check_end(type,"_default") ||
 882                                          !check_end(type,"_value")) continue;
 883                         /* Skip past any leading X. X: X, etc to allow for
 884                          * multiple instances
 885                          */
 886                         for(p = v->name; *p ; p++)
 887                                 if ((*p == ':') || (*p == ',') ||
 888                                                          (*p == '.')) {
 889                                         p++;
 890                                         if(*p) type = p;
 891                                         break;
 892                                 }
 893                         /* If OBJ not recognised ignore it */
 894                         if ((nid=OBJ_txt2nid(type)) == NID_undef) goto start;
 895                         sprintf(buf,"%s_default",v->name);
 896                         if ((def=CONF_get_string(req_conf,tmp,buf)) == NULL)
 897                                 def="";
 898
 899                         sprintf(buf,"%s_value",v->name);
 900                         if ((value=CONF_get_string(req_conf,tmp,buf)) == NULL)
 901                                 value=NULL;
 902
 903                         sprintf(buf,"%s_min",v->name);
 904                         min=(int)CONF_get_number(req_conf,tmp,buf);
 905
 906                         sprintf(buf,"%s_max",v->name);
 907                         max=(int)CONF_get_number(req_conf,tmp,buf);
 908
 909                         if (!add_DN_object(ri->subject,v->value,def,value,nid,
 910                                 min,max))
 911                                 goto err;
 912                         }
 913                 if (sk_X509_NAME_ENTRY_num(ri->subject->entries) == 0)
 914                         {
 915                         BIO_printf(bio_err,"error, no objects specified in config file\n");
 916                         goto err;
 917                         }
 918
 919                 if (attribs)
 920                         {
 921                         if ((attr != NULL) && (sk_num(attr) > 0))
 922                                 {
 923                                 BIO_printf(bio_err,"\nPlease enter the following 'extra' attributes\n");
 924                                 BIO_printf(bio_err,"to be sent with your certificate request\n");
 925                                 }
 926
 927                         i= -1;
 928 start2:                 for (;;)
 929                                 {
 930                                 i++;
 931                                 if ((attr == NULL) || ((int)sk_num(attr) <= i))
 932                                         break;
 933
 934                                 v=(CONF_VALUE *)sk_value(attr,i);
 935                                 type=v->name;
 936                                 if ((nid=OBJ_txt2nid(type)) == NID_undef)
 937                                         goto start2;
 938
 939                                 sprintf(buf,"%s_default",type);
 940                                 if ((def=CONF_get_string(req_conf,tmp_attr,buf))
 941                                         == NULL)
 942                                         def="";
 943
 944                                 sprintf(buf,"%s_value",type);
 945                                 if ((value=CONF_get_string(req_conf,tmp_attr,buf))
 946                                         == NULL)
 947                                         value=NULL;
 948
 949                                 sprintf(buf,"%s_min",type);
 950                                 min=(int)CONF_get_number(req_conf,tmp_attr,buf);
 951
 952                                 sprintf(buf,"%s_max",type);
 953                                 max=(int)CONF_get_number(req_conf,tmp_attr,buf);
 954
 955                                 if (!add_attribute_object(ri->attributes,
 956                                         v->value,def,value,nid,min,max))
 957                                         goto err;
 958                                 }
 959                         }
 960                 }
 961         else
 962                 {
 963                 BIO_printf(bio_err,"No template, please set one up.\n");
 964                 goto err;
 965                 }
 966
 967         X509_REQ_set_pubkey(req,pkey);
 968
 969         ret=1;
 970 err:
 971         return(ret);
 972         }
 973
 974 static int add_DN_object(X509_NAME *n, char *text, char *def, char *value,
 975              int nid, int min, int max)
 976         {
 977         int i,j,ret=0;
 978         X509_NAME_ENTRY *ne=NULL;
 979         MS_STATIC char buf[1024];
 980
 981         BIO_printf(bio_err,"%s [%s]:",text,def);
 982         BIO_flush(bio_err);
 983         if (value != NULL)
 984                 {
 985                 strcpy(buf,value);
 986                 strcat(buf,"\n");
 987                 BIO_printf(bio_err,"%s\n",value);
 988                 }
 989         else
 990                 {
 991                 buf[0]='\0';
 992                 fgets(buf,1024,stdin);
 993                 }
 994
 995         if (buf[0] == '\0') return(0);
 996         else if (buf[0] == '\n')
 997                 {
 998                 if ((def == NULL) || (def[0] == '\0'))
 999                         return(1);
1000                 strcpy(buf,def);
1001                 strcat(buf,"\n");
1002                 }
1003         else if ((buf[0] == '.') && (buf[1] == '\n')) return(1);
1004
1005         i=strlen(buf);
1006         if (buf[i-1] != '\n')
1007                 {
1008                 BIO_printf(bio_err,"weird input :-(\n");
1009                 return(0);
1010                 }
1011         buf[--i]='\0';
1012
1013         j=ASN1_PRINTABLE_type((unsigned char *)buf,-1);
1014         if (req_fix_data(nid,&j,i,min,max) == 0)
1015                 goto err;
1016         if ((ne=X509_NAME_ENTRY_create_by_NID(NULL,nid,j,(unsigned char *)buf,
1017                 strlen(buf)))
1018                 == NULL) goto err;
1019         if (!X509_NAME_add_entry(n,ne,X509_NAME_entry_count(n),0))
1020                 goto err;
1021
1022         ret=1;
1023 err:
1024         if (ne != NULL) X509_NAME_ENTRY_free(ne);
1025         return(ret);
1026         }
1027
1028 static int add_attribute_object(STACK_OF(X509_ATTRIBUTE) *n, char *text,
1029                                 char *def, char *value, int nid, int min,
1030                                 int max)
1031         {
1032         int i,z;
1033         X509_ATTRIBUTE *xa=NULL;
1034         static char buf[1024];
1035         ASN1_BIT_STRING *bs=NULL;
1036         ASN1_TYPE *at=NULL;
1037
1038 start:
1039         BIO_printf(bio_err,"%s [%s]:",text,def);
1040         BIO_flush(bio_err);
1041         if (value != NULL)
1042                 {
1043                 strcpy(buf,value);
1044                 strcat(buf,"\n");
1045                 BIO_printf(bio_err,"%s\n",value);
1046                 }
1047         else
1048                 {
1049                 buf[0]='\0';
1050                 fgets(buf,1024,stdin);
1051                 }
1052
1053         if (buf[0] == '\0') return(0);
1054         else if (buf[0] == '\n')
1055                 {
1056                 if ((def == NULL) || (def[0] == '\0'))
1057                         return(1);
1058                 strcpy(buf,def);
1059                 strcat(buf,"\n");
1060                 }
1061         else if ((buf[0] == '.') && (buf[1] == '\n')) return(1);
1062
1063         i=strlen(buf);
1064         if (buf[i-1] != '\n')
1065                 {
1066                 BIO_printf(bio_err,"weird input :-(\n");
1067                 return(0);
1068                 }
1069         buf[--i]='\0';
1070
1071         /* add object plus value */
1072         if ((xa=X509_ATTRIBUTE_new()) == NULL)
1073                 goto err;
1074         if ((xa->value.set=sk_ASN1_TYPE_new_null()) == NULL)
1075                 goto err;
1076         xa->set=1;
1077
1078         if (xa->object != NULL) ASN1_OBJECT_free(xa->object);
1079         xa->object=OBJ_nid2obj(nid);
1080
1081         if ((bs=ASN1_BIT_STRING_new()) == NULL) goto err;
1082
1083         bs->type=ASN1_PRINTABLE_type((unsigned char *)buf,-1);
1084
1085         z=req_fix_data(nid,&bs->type,i,min,max);
1086         if (z == 0)
1087                 {
1088                 if (value == NULL)
1089                         goto start;
1090                 else    goto err;
1091                 }
1092
1093         if (!ASN1_STRING_set(bs,(unsigned char *)buf,i+1))
1094                 { BIO_printf(bio_err,"Malloc failure\n"); goto err; }
1095
1096         if ((at=ASN1_TYPE_new()) == NULL)
1097                 { BIO_printf(bio_err,"Malloc failure\n"); goto err; }
1098
1099         ASN1_TYPE_set(at,bs->type,(char *)bs);
1100         sk_ASN1_TYPE_push(xa->value.set,at);
1101         bs=NULL;
1102         at=NULL;
1103         /* only one item per attribute */
1104
1105         if (!sk_X509_ATTRIBUTE_push(n,xa)) goto err;
1106         return(1);
1107 err:
1108         if (xa != NULL) X509_ATTRIBUTE_free(xa);
1109         if (at != NULL) ASN1_TYPE_free(at);
1110         if (bs != NULL) ASN1_BIT_STRING_free(bs);
1111         return(0);
1112         }
1113
1114 static void MS_CALLBACK req_cb(int p, int n, void *arg)
1115         {
1116         char c='*';
1117
1118         if (p == 0) c='.';
1119         if (p == 1) c='+';
1120         if (p == 2) c='*';
1121         if (p == 3) c='\n';
1122         BIO_write((BIO *)arg,&c,1);
1123         BIO_flush((BIO *)arg);
1124 #ifdef LINT
1125         p=n;
1126 #endif
1127         }
1128
1129 static int req_fix_data(int nid, int *type, int len, int min, int max)
1130         {
1131         if (nid == NID_pkcs9_emailAddress)
1132                 *type=V_ASN1_IA5STRING;
1133         if ((nid == NID_commonName) && (*type == V_ASN1_IA5STRING))
1134                 *type=V_ASN1_T61STRING;
1135         if ((nid == NID_pkcs9_challengePassword) &&
1136                 (*type == V_ASN1_IA5STRING))
1137                 *type=V_ASN1_T61STRING;
1138
1139         if ((nid == NID_pkcs9_unstructuredName) &&
1140                 (*type == V_ASN1_T61STRING))
1141                 {
1142                 BIO_printf(bio_err,"invalid characters in string, please re-enter the string\n");
1143                 return(0);
1144                 }
1145         if (nid == NID_pkcs9_unstructuredName)
1146                 *type=V_ASN1_IA5STRING;
1147
1148         if (len < min)
1149                 {
1150                 BIO_printf(bio_err,"string is too short, it needs to be at least %d bytes long\n",min);
1151                 return(0);
1152                 }
1153         if ((max != 0) && (len > max))
1154                 {
1155                 BIO_printf(bio_err,"string is too long, it needs to be less than  %d bytes long\n",max);
1156                 return(0);
1157                 }
1158         return(1);
1159         }
1160
1161 /* Check if the end of a string matches 'end' */
1162 static int check_end(char *str, char *end)
1163 {
1164         int elen, slen;
1165         char *tmp;
1166         elen = strlen(end);
1167         slen = strlen(str);
1168         if(elen > slen) return 1;
1169         tmp = str + slen - elen;
1170         return strcmp(tmp, end);
1171 }
1172
1173 static int add_oid_section(LHASH *conf)
1174 {
1175         char *p;
1176         STACK *sktmp;
1177         CONF_VALUE *cnf;
1178         int i;
1179         if(!(p=CONF_get_string(conf,NULL,"oid_section"))) return 1;
1180         if(!(sktmp = CONF_get_section(conf, p))) {
1181                 BIO_printf(bio_err, "problem loading oid section %s\n", p);
1182                 return 0;
1183         }
1184         for(i = 0; i < sk_num(sktmp); i++) {
1185                 cnf = (CONF_VALUE *)sk_value(sktmp, i);
1186                 if(OBJ_create(cnf->value, cnf->name, cnf->name) == NID_undef) {
1187                         BIO_printf(bio_err, "problem creating object %s=%s\n",
1188                                                          cnf->name, cnf->value);
1189                         return 0;
1190                 }
1191         }
1192         return 1;
1193 }