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 #define REQ_EXTENSIONS  "req_extensions"
  86
  87 #define DEFAULT_KEY_LENGTH      512
  88 #define MIN_KEY_LENGTH          384
  89
  90 #undef PROG
  91 #define PROG    req_main
  92
  93 /* -inform arg  - input format - default PEM (one of DER, TXT or PEM)
  94  * -outform arg - output format - default PEM
  95  * -in arg      - input file - default stdin
  96  * -out arg     - output file - default stdout
  97  * -verify      - check request signature
  98  * -noout       - don't print stuff out.
  99  * -text        - print out human readable text.
 100  * -nodes       - no des encryption
 101  * -config file - Load configuration file.
 102  * -key file    - make a request using key in file (or use it for verification).
 103  * -keyform     - key file format.
 104  * -newkey      - make a key and a request.
 105  * -modulus     - print RSA modulus.
 106  * -x509        - output a self signed X509 structure instead.
 107  * -asn1-kludge - output new certificate request in a format that some CA's
 108  *                require.  This format is wrong
 109  */
 110
 111 static int make_REQ(X509_REQ *req,EVP_PKEY *pkey,int attribs);
 112 static int add_attribute_object(STACK_OF(X509_ATTRIBUTE) *n, char *text,
 113                                 char *def, char *value, int nid, int min,
 114                                 int max);
 115 static int add_DN_object(X509_NAME *n, char *text, char *def, char *value,
 116         int nid,int min,int max);
 117 static void MS_CALLBACK req_cb(int p,int n,void *arg);
 118 static int req_fix_data(int nid,int *type,int len,int min,int max);
 119 static int check_end(char *str, char *end);
 120 static int add_oid_section(LHASH *conf);
 121 #ifndef MONOLITH
 122 static char *default_config_file=NULL;
 123 static LHASH *config=NULL;
 124 #endif
 125 static LHASH *req_conf=NULL;
 126
 127 #define TYPE_RSA        1
 128 #define TYPE_DSA        2
 129 #define TYPE_DH         3
 130
 131 int MAIN(int argc, char **argv)
 132         {
 133 #ifndef NO_DSA
 134         DSA *dsa_params=NULL;
 135 #endif
 136         int ex=1,x509=0,days=30;
 137         X509 *x509ss=NULL;
 138         X509_REQ *req=NULL;
 139         EVP_PKEY *pkey=NULL;
 140         int i,badops=0,newreq=0,newkey= -1,pkey_type=0;
 141         BIO *in=NULL,*out=NULL;
 142         int informat,outformat,verify=0,noout=0,text=0,keyform=FORMAT_PEM;
 143         int nodes=0,kludge=0;
 144         char *infile,*outfile,*prog,*keyfile=NULL,*template=NULL,*keyout=NULL;
 145         char *extensions = NULL;
 146         char *req_exts = NULL;
 147         EVP_CIPHER *cipher=NULL;
 148         int modulus=0;
 149         char *p;
 150         const EVP_MD *md_alg=NULL,*digest=EVP_md5();
 151 #ifndef MONOLITH
 152         MS_STATIC char config_name[256];
 153 #endif
 154
 155 #ifndef NO_DES
 156         cipher=EVP_des_ede3_cbc();
 157 #endif
 158         apps_startup();
 159
 160         if (bio_err == NULL)
 161                 if ((bio_err=BIO_new(BIO_s_file())) != NULL)
 162                         BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);
 163
 164         infile=NULL;
 165         outfile=NULL;
 166         informat=FORMAT_PEM;
 167         outformat=FORMAT_PEM;
 168
 169         prog=argv[0];
 170         argc--;
 171         argv++;
 172         while (argc >= 1)
 173                 {
 174                 if      (strcmp(*argv,"-inform") == 0)
 175                         {
 176                         if (--argc < 1) goto bad;
 177                         informat=str2fmt(*(++argv));
 178                         }
 179                 else if (strcmp(*argv,"-outform") == 0)
 180                         {
 181                         if (--argc < 1) goto bad;
 182                         outformat=str2fmt(*(++argv));
 183                         }
 184                 else if (strcmp(*argv,"-key") == 0)
 185                         {
 186                         if (--argc < 1) goto bad;
 187                         keyfile= *(++argv);
 188                         }
 189                 else if (strcmp(*argv,"-new") == 0)
 190                         {
 191                         pkey_type=TYPE_RSA;
 192                         newreq=1;
 193                         }
 194                 else if (strcmp(*argv,"-config") == 0)
 195                         {
 196                         if (--argc < 1) goto bad;
 197                         template= *(++argv);
 198                         }
 199                 else if (strcmp(*argv,"-keyform") == 0)
 200                         {
 201                         if (--argc < 1) goto bad;
 202                         keyform=str2fmt(*(++argv));
 203                         }
 204                 else if (strcmp(*argv,"-in") == 0)
 205                         {
 206                         if (--argc < 1) goto bad;
 207                         infile= *(++argv);
 208                         }
 209                 else if (strcmp(*argv,"-out") == 0)
 210                         {
 211                         if (--argc < 1) goto bad;
 212                         outfile= *(++argv);
 213                         }
 214                 else if (strcmp(*argv,"-keyout") == 0)
 215                         {
 216                         if (--argc < 1) goto bad;
 217                         keyout= *(++argv);
 218                         }
 219                 else if (strcmp(*argv,"-newkey") == 0)
 220                         {
 221                         int is_numeric;
 222
 223                         if (--argc < 1) goto bad;
 224                         p= *(++argv);
 225                         is_numeric = p[0] >= '0' && p[0] <= '9';
 226                         if (strncmp("rsa:",p,4) == 0 || is_numeric)
 227                                 {
 228                                 pkey_type=TYPE_RSA;
 229                                 if(!is_numeric)
 230                                     p+=4;
 231                                 newkey= atoi(p);
 232                                 }
 233                         else
 234 #ifndef NO_DSA
 235                                 if (strncmp("dsa:",p,4) == 0)
 236                                 {
 237                                 X509 *xtmp=NULL;
 238                                 EVP_PKEY *dtmp;
 239
 240                                 pkey_type=TYPE_DSA;
 241                                 p+=4;
 242                                 if ((in=BIO_new_file(p,"r")) == NULL)
 243                                         {
 244                                         perror(p);
 245                                         goto end;
 246                                         }
 247                                 if ((dsa_params=PEM_read_bio_DSAparams(in,NULL,NULL,NULL)) == NULL)
 248                                         {
 249                                         ERR_clear_error();
 250                                         (void)BIO_reset(in);
 251                                         if ((xtmp=PEM_read_bio_X509(in,NULL,NULL,NULL)) == NULL)
 252                                                 {
 253                                                 BIO_printf(bio_err,"unable to load DSA parameters from file\n");
 254                                                 goto end;
 255                                                 }
 256
 257                                         dtmp=X509_get_pubkey(xtmp);
 258                                         if (dtmp->type == EVP_PKEY_DSA)
 259                                                 dsa_params=DSAparams_dup(dtmp->pkey.dsa);
 260                                         EVP_PKEY_free(dtmp);
 261                                         X509_free(xtmp);
 262                                         if (dsa_params == NULL)
 263                                                 {
 264                                                 BIO_printf(bio_err,"Certificate does not contain DSA parameters\n");
 265                                                 goto end;
 266                                                 }
 267                                         }
 268                                 BIO_free(in);
 269                                 newkey=BN_num_bits(dsa_params->p);
 270                                 in=NULL;
 271                                 }
 272                         else
 273 #endif
 274 #ifndef NO_DH
 275                                 if (strncmp("dh:",p,4) == 0)
 276                                 {
 277                                 pkey_type=TYPE_DH;
 278                                 p+=3;
 279                                 }
 280                         else
 281 #endif
 282                                 pkey_type=TYPE_RSA;
 283
 284                         newreq=1;
 285                         }
 286                 else if (strcmp(*argv,"-modulus") == 0)
 287                         modulus=1;
 288                 else if (strcmp(*argv,"-verify") == 0)
 289                         verify=1;
 290                 else if (strcmp(*argv,"-nodes") == 0)
 291                         nodes=1;
 292                 else if (strcmp(*argv,"-noout") == 0)
 293                         noout=1;
 294                 else if (strcmp(*argv,"-text") == 0)
 295                         text=1;
 296                 else if (strcmp(*argv,"-x509") == 0)
 297                         x509=1;
 298                 else if (strcmp(*argv,"-asn1-kludge") == 0)
 299                         kludge=1;
 300                 else if (strcmp(*argv,"-no-asn1-kludge") == 0)
 301                         kludge=0;
 302                 else if (strcmp(*argv,"-days") == 0)
 303                         {
 304                         if (--argc < 1) goto bad;
 305                         days= atoi(*(++argv));
 306                         if (days == 0) days=30;
 307                         }
 308                 else if ((md_alg=EVP_get_digestbyname(&((*argv)[1]))) != NULL)
 309                         {
 310                         /* ok */
 311                         digest=md_alg;
 312                         }
 313                 else
 314
 315                         {
 316                         BIO_printf(bio_err,"unknown option %s\n",*argv);
 317                         badops=1;
 318                         break;
 319                         }
 320                 argc--;
 321                 argv++;
 322                 }
 323
 324         if (badops)
 325                 {
 326 bad:
 327                 BIO_printf(bio_err,"%s [options] <infile >outfile\n",prog);
 328                 BIO_printf(bio_err,"where options  are\n");
 329                 BIO_printf(bio_err," -inform arg    input format - one of DER TXT PEM\n");
 330                 BIO_printf(bio_err," -outform arg   output format - one of DER TXT PEM\n");
 331                 BIO_printf(bio_err," -in arg        input file\n");
 332                 BIO_printf(bio_err," -out arg       output file\n");
 333                 BIO_printf(bio_err," -text          text form of request\n");
 334                 BIO_printf(bio_err," -noout         do not output REQ\n");
 335                 BIO_printf(bio_err," -verify        verify signature on REQ\n");
 336                 BIO_printf(bio_err," -modulus       RSA modulus\n");
 337                 BIO_printf(bio_err," -nodes         don't encrypt the output key\n");
 338                 BIO_printf(bio_err," -key file  use the private key contained in file\n");
 339                 BIO_printf(bio_err," -keyform arg   key file format\n");
 340                 BIO_printf(bio_err," -keyout arg    file to send the key to\n");
 341                 BIO_printf(bio_err," -newkey rsa:bits generate a new RSA key of 'bits' in size\n");
 342                 BIO_printf(bio_err," -newkey dsa:file generate a new DSA key, parameters taken from CA in 'file'\n");
 343
 344                 BIO_printf(bio_err," -[digest]      Digest to sign with (md5, sha1, md2, mdc2)\n");
 345                 BIO_printf(bio_err," -config file   request template file.\n");
 346                 BIO_printf(bio_err," -new           new request.\n");
 347                 BIO_printf(bio_err," -x509          output a x509 structure instead of a cert. req.\n");
 348                 BIO_printf(bio_err," -days          number of days a x509 generated by -x509 is valid for.\n");
 349                 BIO_printf(bio_err," -asn1-kludge   Output the 'request' in a format that is wrong but some CA's\n");
 350                 BIO_printf(bio_err,"                have been reported as requiring\n");
 351                 BIO_printf(bio_err,"                [ It is now always turned on but can be turned off with -no-asn1-kludge ]\n");
 352                 goto end;
 353                 }
 354
 355         ERR_load_crypto_strings();
 356         X509V3_add_standard_extensions();
 357
 358 #ifndef MONOLITH
 359         /* Lets load up our environment a little */
 360         p=getenv("OPENSSL_CONF");
 361         if (p == NULL)
 362                 p=getenv("SSLEAY_CONF");
 363         if (p == NULL)
 364                 {
 365                 strcpy(config_name,X509_get_default_cert_area());
 366 #ifndef VMS
 367                 strcat(config_name,"/");
 368 #endif
 369                 strcat(config_name,OPENSSL_CONF);
 370                 p=config_name;
 371                 }
 372         default_config_file=p;
 373         config=CONF_load(config,p,NULL);
 374 #endif
 375
 376         if (template != NULL)
 377                 {
 378                 long errline;
 379
 380                 BIO_printf(bio_err,"Using configuration from %s\n",template);
 381                 req_conf=CONF_load(NULL,template,&errline);
 382                 if (req_conf == NULL)
 383                         {
 384                         BIO_printf(bio_err,"error on line %ld of %s\n",errline,template);
 385                         goto end;
 386                         }
 387                 }
 388         else
 389                 {
 390                 req_conf=config;
 391                 BIO_printf(bio_err,"Using configuration from %s\n",
 392                         default_config_file);
 393                 if (req_conf == NULL)
 394                         {
 395                         BIO_printf(bio_err,"Unable to load config info\n");
 396                         }
 397                 }
 398
 399         if (req_conf != NULL)
 400                 {
 401                 p=CONF_get_string(req_conf,NULL,"oid_file");
 402                 if (p != NULL)
 403                         {
 404                         BIO *oid_bio;
 405
 406                         oid_bio=BIO_new_file(p,"r");
 407                         if (oid_bio == NULL)
 408                                 {
 409                                 /*
 410                                 BIO_printf(bio_err,"problems opening %s for extra oid's\n",p);
 411                                 ERR_print_errors(bio_err);
 412                                 */
 413                                 }
 414                         else
 415                                 {
 416                                 OBJ_create_objects(oid_bio);
 417                                 BIO_free(oid_bio);
 418                                 }
 419                         }
 420                 }
 421                 if(!add_oid_section(req_conf)) goto end;
 422
 423         if ((md_alg == NULL) &&
 424                 ((p=CONF_get_string(req_conf,SECTION,"default_md")) != NULL))
 425                 {
 426                 if ((md_alg=EVP_get_digestbyname(p)) != NULL)
 427                         digest=md_alg;
 428                 }
 429
 430         extensions = CONF_get_string(req_conf, SECTION, V3_EXTENSIONS);
 431         if(extensions) {
 432                 /* Check syntax of file */
 433                 X509V3_CTX ctx;
 434                 X509V3_set_ctx_test(&ctx);
 435                 X509V3_set_conf_lhash(&ctx, req_conf);
 436                 if(!X509V3_EXT_add_conf(req_conf, &ctx, extensions, NULL)) {
 437                         BIO_printf(bio_err,
 438                          "Error Loading extension section %s\n", extensions);
 439                         goto end;
 440                 }
 441         }
 442
 443         req_exts = CONF_get_string(req_conf, SECTION, REQ_EXTENSIONS);
 444         if(req_exts) {
 445                 /* Check syntax of file */
 446                 X509V3_CTX ctx;
 447                 X509V3_set_ctx_test(&ctx);
 448                 X509V3_set_conf_lhash(&ctx, req_conf);
 449                 if(!X509V3_EXT_add_conf(req_conf, &ctx, req_exts, NULL)) {
 450                         BIO_printf(bio_err,
 451                          "Error Loading request extension section %s\n",
 452                                                                 req_exts);
 453                         goto end;
 454                 }
 455         }
 456
 457         in=BIO_new(BIO_s_file());
 458         out=BIO_new(BIO_s_file());
 459         if ((in == NULL) || (out == NULL))
 460                 goto end;
 461
 462         if (keyfile != NULL)
 463                 {
 464                 if (BIO_read_filename(in,keyfile) <= 0)
 465                         {
 466                         perror(keyfile);
 467                         goto end;
 468                         }
 469
 470 /*              if (keyform == FORMAT_ASN1)
 471                         rsa=d2i_RSAPrivateKey_bio(in,NULL);
 472                 else */
 473                 if (keyform == FORMAT_PEM)
 474                         pkey=PEM_read_bio_PrivateKey(in,NULL,NULL,NULL);
 475                 else
 476                         {
 477                         BIO_printf(bio_err,"bad input format specified for X509 request\n");
 478                         goto end;
 479                         }
 480
 481                 if (pkey == NULL)
 482                         {
 483                         BIO_printf(bio_err,"unable to load Private key\n");
 484                         goto end;
 485                         }
 486                 }
 487
 488         if (newreq && (pkey == NULL))
 489                 {
 490                 char *randfile;
 491                 char buffer[200];
 492
 493                 if ((randfile=CONF_get_string(req_conf,SECTION,"RANDFILE")) == NULL)
 494                         randfile=RAND_file_name(buffer,200);
 495 #ifdef WINDOWS
 496                 BIO_printf(bio_err,"Loading 'screen' into random state -");
 497                 BIO_flush(bio_err);
 498                 RAND_screen();
 499                 BIO_printf(bio_err," done\n");
 500 #endif
 501                 if ((randfile == NULL) || !RAND_load_file(randfile,1024L*1024L))
 502                         {
 503                         BIO_printf(bio_err,"unable to load 'random state'\n");
 504                         BIO_printf(bio_err,"What this means is that the random number generator has not been seeded\n");
 505                         BIO_printf(bio_err,"with much random data.\n");
 506                         BIO_printf(bio_err,"Consider setting the RANDFILE environment variable to point at a file that\n");
 507                         BIO_printf(bio_err,"'random' data can be kept in.\n");
 508                         }
 509                 if (newkey <= 0)
 510                         {
 511                         newkey=(int)CONF_get_number(req_conf,SECTION,BITS);
 512                         if (newkey <= 0)
 513                                 newkey=DEFAULT_KEY_LENGTH;
 514                         }
 515
 516                 if (newkey < MIN_KEY_LENGTH)
 517                         {
 518                         BIO_printf(bio_err,"private key length is too short,\n");
 519                         BIO_printf(bio_err,"it needs to be at least %d bits, not %d\n",MIN_KEY_LENGTH,newkey);
 520                         goto end;
 521                         }
 522                 BIO_printf(bio_err,"Generating a %d bit %s private key\n",
 523                         newkey,(pkey_type == TYPE_RSA)?"RSA":"DSA");
 524
 525                 if ((pkey=EVP_PKEY_new()) == NULL) goto end;
 526
 527 #ifndef NO_RSA
 528                 if (pkey_type == TYPE_RSA)
 529                         {
 530                         if (!EVP_PKEY_assign_RSA(pkey,
 531                                 RSA_generate_key(newkey,0x10001,
 532                                         req_cb,bio_err)))
 533                                 goto end;
 534                         }
 535                 else
 536 #endif
 537 #ifndef NO_DSA
 538                         if (pkey_type == TYPE_DSA)
 539                         {
 540                         if (!DSA_generate_key(dsa_params)) goto end;
 541                         if (!EVP_PKEY_assign_DSA(pkey,dsa_params)) goto end;
 542                         dsa_params=NULL;
 543                         }
 544 #endif
 545
 546                 if ((randfile == NULL) || (RAND_write_file(randfile) == 0))
 547                         BIO_printf(bio_err,"unable to write 'random state'\n");
 548
 549                 if (pkey == NULL) goto end;
 550
 551                 if (keyout == NULL)
 552                         keyout=CONF_get_string(req_conf,SECTION,KEYFILE);
 553
 554                 if (keyout == NULL)
 555                         {
 556                         BIO_printf(bio_err,"writing new private key to stdout\n");
 557                         BIO_set_fp(out,stdout,BIO_NOCLOSE);
 558                         }
 559                 else
 560                         {
 561                         BIO_printf(bio_err,"writing new private key to '%s'\n",keyout);
 562                         if (BIO_write_filename(out,keyout) <= 0)
 563                                 {
 564                                 perror(keyout);
 565                                 goto end;
 566                                 }
 567                         }
 568
 569                 p=CONF_get_string(req_conf,SECTION,"encrypt_rsa_key");
 570                 if (p == NULL)
 571                         p=CONF_get_string(req_conf,SECTION,"encrypt_key");
 572                 if ((p != NULL) && (strcmp(p,"no") == 0))
 573                         cipher=NULL;
 574                 if (nodes) cipher=NULL;
 575
 576                 i=0;
 577 loop:
 578                 if (!PEM_write_bio_PrivateKey(out,pkey,cipher,
 579                         NULL,0,NULL,NULL))
 580                         {
 581                         if ((ERR_GET_REASON(ERR_peek_error()) ==
 582                                 PEM_R_PROBLEMS_GETTING_PASSWORD) && (i < 3))
 583                                 {
 584                                 ERR_clear_error();
 585                                 i++;
 586                                 goto loop;
 587                                 }
 588                         goto end;
 589                         }
 590                 BIO_printf(bio_err,"-----\n");
 591                 }
 592
 593         if (!newreq)
 594                 {
 595                 /* Since we are using a pre-existing certificate
 596                  * request, the kludge 'format' info should not be
 597                  * changed. */
 598                 kludge= -1;
 599                 if (infile == NULL)
 600                         BIO_set_fp(in,stdin,BIO_NOCLOSE);
 601                 else
 602                         {
 603                         if (BIO_read_filename(in,infile) <= 0)
 604                                 {
 605                                 perror(infile);
 606                                 goto end;
 607                                 }
 608                         }
 609
 610                 if      (informat == FORMAT_ASN1)
 611                         req=d2i_X509_REQ_bio(in,NULL);
 612                 else if (informat == FORMAT_PEM)
 613                         req=PEM_read_bio_X509_REQ(in,NULL,NULL,NULL);
 614                 else
 615                         {
 616                         BIO_printf(bio_err,"bad input format specified for X509 request\n");
 617                         goto end;
 618                         }
 619                 if (req == NULL)
 620                         {
 621                         BIO_printf(bio_err,"unable to load X509 request\n");
 622                         goto end;
 623                         }
 624                 }
 625
 626         if (newreq || x509)
 627                 {
 628 #ifndef NO_DSA
 629                 if (pkey->type == EVP_PKEY_DSA)
 630                         digest=EVP_dss1();
 631 #endif
 632
 633                 if (pkey == NULL)
 634                         {
 635                         BIO_printf(bio_err,"you need to specify a private key\n");
 636                         goto end;
 637                         }
 638                 if (req == NULL)
 639                         {
 640                         req=X509_REQ_new();
 641                         if (req == NULL)
 642                                 {
 643                                 goto end;
 644                                 }
 645
 646                         i=make_REQ(req,pkey,!x509);
 647                         if (kludge >= 0)
 648                                 req->req_info->req_kludge=kludge;
 649                         if (!i)
 650                                 {
 651                                 BIO_printf(bio_err,"problems making Certificate Request\n");
 652                                 goto end;
 653                                 }
 654                         }
 655                 if (x509)
 656                         {
 657                         EVP_PKEY *tmppkey;
 658                         X509V3_CTX ext_ctx;
 659                         if ((x509ss=X509_new()) == NULL) goto end;
 660
 661                         /* Set version to V3 */
 662                         if(!X509_set_version(x509ss, 2)) goto end;
 663                         ASN1_INTEGER_set(X509_get_serialNumber(x509ss),0L);
 664
 665                         X509_set_issuer_name(x509ss,
 666                                 X509_REQ_get_subject_name(req));
 667                         X509_gmtime_adj(X509_get_notBefore(x509ss),0);
 668                         X509_gmtime_adj(X509_get_notAfter(x509ss),
 669                                 (long)60*60*24*days);
 670                         X509_set_subject_name(x509ss,
 671                                 X509_REQ_get_subject_name(req));
 672                         tmppkey = X509_REQ_get_pubkey(req);
 673                         X509_set_pubkey(x509ss,tmppkey);
 674                         EVP_PKEY_free(tmppkey);
 675
 676                         /* Set up V3 context struct */
 677
 678                         X509V3_set_ctx(&ext_ctx, x509ss, x509ss, NULL, NULL, 0);
 679                         X509V3_set_conf_lhash(&ext_ctx, req_conf);
 680
 681                         /* Add extensions */
 682                         if(extensions && !X509V3_EXT_add_conf(req_conf,
 683                                         &ext_ctx, extensions, x509ss))
 684                             {
 685                             BIO_printf(bio_err,
 686                                        "Error Loading extension section %s\n",
 687                                        extensions);
 688                             goto end;
 689                             }
 690
 691                         if (!(i=X509_sign(x509ss,pkey,digest)))
 692                                 goto end;
 693                         }
 694                 else
 695                         {
 696                         X509V3_CTX ext_ctx;
 697
 698                         /* Set up V3 context struct */
 699
 700                         X509V3_set_ctx(&ext_ctx, NULL, NULL, req, NULL, 0);
 701                         X509V3_set_conf_lhash(&ext_ctx, req_conf);
 702
 703                         /* Add extensions */
 704                         if(req_exts && !X509V3_EXT_REQ_add_conf(req_conf,
 705                                         &ext_ctx, req_exts, req))
 706                             {
 707                             BIO_printf(bio_err,
 708                                        "Error Loading extension section %s\n",
 709                                        req_exts);
 710                             goto end;
 711                             }
 712                         if (!(i=X509_REQ_sign(req,pkey,digest)))
 713                                 goto end;
 714                         }
 715                 }
 716
 717         if (verify && !x509)
 718                 {
 719                 int tmp=0;
 720
 721                 if (pkey == NULL)
 722                         {
 723                         pkey=X509_REQ_get_pubkey(req);
 724                         tmp=1;
 725                         if (pkey == NULL) goto end;
 726                         }
 727
 728                 i=X509_REQ_verify(req,pkey);
 729                 if (tmp) {
 730                         EVP_PKEY_free(pkey);
 731                         pkey=NULL;
 732                 }
 733
 734                 if (i < 0)
 735                         {
 736                         goto end;
 737                         }
 738                 else if (i == 0)
 739                         {
 740                         BIO_printf(bio_err,"verify failure\n");
 741                         }
 742                 else /* if (i > 0) */
 743                         BIO_printf(bio_err,"verify OK\n");
 744                 }
 745
 746         if (noout && !text && !modulus)
 747                 {
 748                 ex=0;
 749                 goto end;
 750                 }
 751
 752         if (outfile == NULL)
 753                 BIO_set_fp(out,stdout,BIO_NOCLOSE);
 754         else
 755                 {
 756                 if ((keyout != NULL) && (strcmp(outfile,keyout) == 0))
 757                         i=(int)BIO_append_filename(out,outfile);
 758                 else
 759                         i=(int)BIO_write_filename(out,outfile);
 760                 if (!i)
 761                         {
 762                         perror(outfile);
 763                         goto end;
 764                         }
 765                 }
 766
 767         if (text)
 768                 {
 769                 if (x509)
 770                         X509_print(out,x509ss);
 771                 else
 772                         X509_REQ_print(out,req);
 773                 }
 774
 775         if (modulus)
 776                 {
 777                 EVP_PKEY *pubkey;
 778
 779                 if (x509)
 780                         pubkey=X509_get_pubkey(x509ss);
 781                 else
 782                         pubkey=X509_REQ_get_pubkey(req);
 783                 if (pubkey == NULL)
 784                         {
 785                         fprintf(stdout,"Modulus=unavailable\n");
 786                         goto end;
 787                         }
 788                 fprintf(stdout,"Modulus=");
 789 #ifndef NO_RSA
 790                 if (pubkey->type == EVP_PKEY_RSA)
 791                         BN_print(out,pubkey->pkey.rsa->n);
 792                 else
 793 #endif
 794                         fprintf(stdout,"Wrong Algorithm type");
 795                 fprintf(stdout,"\n");
 796                 }
 797
 798         if (!noout && !x509)
 799                 {
 800                 if      (outformat == FORMAT_ASN1)
 801                         i=i2d_X509_REQ_bio(out,req);
 802                 else if (outformat == FORMAT_PEM)
 803                         i=PEM_write_bio_X509_REQ(out,req);
 804                 else    {
 805                         BIO_printf(bio_err,"bad output format specified for outfile\n");
 806                         goto end;
 807                         }
 808                 if (!i)
 809                         {
 810                         BIO_printf(bio_err,"unable to write X509 request\n");
 811                         goto end;
 812                         }
 813                 }
 814         if (!noout && x509 && (x509ss != NULL))
 815                 {
 816                 if      (outformat == FORMAT_ASN1)
 817                         i=i2d_X509_bio(out,x509ss);
 818                 else if (outformat == FORMAT_PEM)
 819                         i=PEM_write_bio_X509(out,x509ss);
 820                 else    {
 821                         BIO_printf(bio_err,"bad output format specified for outfile\n");
 822                         goto end;
 823                         }
 824                 if (!i)
 825                         {
 826                         BIO_printf(bio_err,"unable to write X509 certificate\n");
 827                         goto end;
 828                         }
 829                 }
 830         ex=0;
 831 end:
 832         if (ex)
 833                 {
 834                 ERR_print_errors(bio_err);
 835                 }
 836         if ((req_conf != NULL) && (req_conf != config)) CONF_free(req_conf);
 837         BIO_free(in);
 838         BIO_free(out);
 839         EVP_PKEY_free(pkey);
 840         X509_REQ_free(req);
 841         X509_free(x509ss);
 842         X509V3_EXT_cleanup();
 843         OBJ_cleanup();
 844 #ifndef NO_DSA
 845         if (dsa_params != NULL) DSA_free(dsa_params);
 846 #endif
 847         EXIT(ex);
 848         }
 849
 850 static int make_REQ(X509_REQ *req, EVP_PKEY *pkey, int attribs)
 851         {
 852         int ret=0,i;
 853         char *p,*q;
 854         X509_REQ_INFO *ri;
 855         char buf[100];
 856         int nid,min,max;
 857         char *type,*def,*tmp,*value,*tmp_attr;
 858         STACK_OF(CONF_VALUE) *sk, *attr=NULL;
 859         CONF_VALUE *v;
 860
 861         tmp=CONF_get_string(req_conf,SECTION,DISTINGUISHED_NAME);
 862         if (tmp == NULL)
 863                 {
 864                 BIO_printf(bio_err,"unable to find '%s' in config\n",
 865                         DISTINGUISHED_NAME);
 866                 goto err;
 867                 }
 868         sk=CONF_get_section(req_conf,tmp);
 869         if (sk == NULL)
 870                 {
 871                 BIO_printf(bio_err,"unable to get '%s' section\n",tmp);
 872                 goto err;
 873                 }
 874
 875         tmp_attr=CONF_get_string(req_conf,SECTION,ATTRIBUTES);
 876         if (tmp_attr == NULL)
 877                 attr=NULL;
 878         else
 879                 {
 880                 attr=CONF_get_section(req_conf,tmp_attr);
 881                 if (attr == NULL)
 882                         {
 883                         BIO_printf(bio_err,"unable to get '%s' section\n",tmp_attr);
 884                         goto err;
 885                         }
 886                 }
 887
 888         ri=req->req_info;
 889
 890         BIO_printf(bio_err,"You are about to be asked to enter information that will be incorporated\n");
 891         BIO_printf(bio_err,"into your certificate request.\n");
 892         BIO_printf(bio_err,"What you are about to enter is what is called a Distinguished Name or a DN.\n");
 893         BIO_printf(bio_err,"There are quite a few fields but you can leave some blank\n");
 894         BIO_printf(bio_err,"For some fields there will be a default value,\n");
 895         BIO_printf(bio_err,"If you enter '.', the field will be left blank.\n");
 896         BIO_printf(bio_err,"-----\n");
 897
 898         /* setup version number */
 899         if (!ASN1_INTEGER_set(ri->version,0L)) goto err; /* version 1 */
 900
 901         if (sk_CONF_VALUE_num(sk))
 902                 {
 903                 i= -1;
 904 start:          for (;;)
 905                         {
 906                         i++;
 907                         if (sk_CONF_VALUE_num(sk) <= i) break;
 908
 909                         v=sk_CONF_VALUE_value(sk,i);
 910                         p=q=NULL;
 911                         type=v->name;
 912                         if(!check_end(type,"_min") || !check_end(type,"_max") ||
 913                                 !check_end(type,"_default") ||
 914                                          !check_end(type,"_value")) continue;
 915                         /* Skip past any leading X. X: X, etc to allow for
 916                          * multiple instances
 917                          */
 918                         for(p = v->name; *p ; p++)
 919                                 if ((*p == ':') || (*p == ',') ||
 920                                                          (*p == '.')) {
 921                                         p++;
 922                                         if(*p) type = p;
 923                                         break;
 924                                 }
 925                         /* If OBJ not recognised ignore it */
 926                         if ((nid=OBJ_txt2nid(type)) == NID_undef) goto start;
 927                         sprintf(buf,"%s_default",v->name);
 928                         if ((def=CONF_get_string(req_conf,tmp,buf)) == NULL)
 929                                 def="";
 930
 931                         sprintf(buf,"%s_value",v->name);
 932                         if ((value=CONF_get_string(req_conf,tmp,buf)) == NULL)
 933                                 value=NULL;
 934
 935                         sprintf(buf,"%s_min",v->name);
 936                         min=(int)CONF_get_number(req_conf,tmp,buf);
 937
 938                         sprintf(buf,"%s_max",v->name);
 939                         max=(int)CONF_get_number(req_conf,tmp,buf);
 940
 941                         if (!add_DN_object(ri->subject,v->value,def,value,nid,
 942                                 min,max))
 943                                 goto err;
 944                         }
 945                 if (sk_X509_NAME_ENTRY_num(ri->subject->entries) == 0)
 946                         {
 947                         BIO_printf(bio_err,"error, no objects specified in config file\n");
 948                         goto err;
 949                         }
 950
 951                 if (attribs)
 952                         {
 953                         if ((attr != NULL) && (sk_CONF_VALUE_num(attr) > 0))
 954                                 {
 955                                 BIO_printf(bio_err,"\nPlease enter the following 'extra' attributes\n");
 956                                 BIO_printf(bio_err,"to be sent with your certificate request\n");
 957                                 }
 958
 959                         i= -1;
 960 start2:                 for (;;)
 961                                 {
 962                                 i++;
 963                                 if ((attr == NULL) ||
 964                                             (sk_CONF_VALUE_num(attr) <= i))
 965                                         break;
 966
 967                                 v=sk_CONF_VALUE_value(attr,i);
 968                                 type=v->name;
 969                                 if ((nid=OBJ_txt2nid(type)) == NID_undef)
 970                                         goto start2;
 971
 972                                 sprintf(buf,"%s_default",type);
 973                                 if ((def=CONF_get_string(req_conf,tmp_attr,buf))
 974                                         == NULL)
 975                                         def="";
 976
 977                                 sprintf(buf,"%s_value",type);
 978                                 if ((value=CONF_get_string(req_conf,tmp_attr,buf))
 979                                         == NULL)
 980                                         value=NULL;
 981
 982                                 sprintf(buf,"%s_min",type);
 983                                 min=(int)CONF_get_number(req_conf,tmp_attr,buf);
 984
 985                                 sprintf(buf,"%s_max",type);
 986                                 max=(int)CONF_get_number(req_conf,tmp_attr,buf);
 987
 988                                 if (!add_attribute_object(ri->attributes,
 989                                         v->value,def,value,nid,min,max))
 990                                         goto err;
 991                                 }
 992                         }
 993                 }
 994         else
 995                 {
 996                 BIO_printf(bio_err,"No template, please set one up.\n");
 997                 goto err;
 998                 }
 999
1000         X509_REQ_set_pubkey(req,pkey);
1001
1002         ret=1;
1003 err:
1004         return(ret);
1005         }
1006
1007 static int add_DN_object(X509_NAME *n, char *text, char *def, char *value,
1008              int nid, int min, int max)
1009         {
1010         int i,j,ret=0;
1011         X509_NAME_ENTRY *ne=NULL;
1012         MS_STATIC char buf[1024];
1013
1014         BIO_printf(bio_err,"%s [%s]:",text,def);
1015         (void)BIO_flush(bio_err);
1016         if (value != NULL)
1017                 {
1018                 strcpy(buf,value);
1019                 strcat(buf,"\n");
1020                 BIO_printf(bio_err,"%s\n",value);
1021                 }
1022         else
1023                 {
1024                 buf[0]='\0';
1025                 fgets(buf,1024,stdin);
1026                 }
1027
1028         if (buf[0] == '\0') return(0);
1029         else if (buf[0] == '\n')
1030                 {
1031                 if ((def == NULL) || (def[0] == '\0'))
1032                         return(1);
1033                 strcpy(buf,def);
1034                 strcat(buf,"\n");
1035                 }
1036         else if ((buf[0] == '.') && (buf[1] == '\n')) return(1);
1037
1038         i=strlen(buf);
1039         if (buf[i-1] != '\n')
1040                 {
1041                 BIO_printf(bio_err,"weird input :-(\n");
1042                 return(0);
1043                 }
1044         buf[--i]='\0';
1045
1046         j=ASN1_PRINTABLE_type((unsigned char *)buf,-1);
1047         if (req_fix_data(nid,&j,i,min,max) == 0)
1048                 goto err;
1049 #ifdef CHARSET_EBCDIC
1050         ebcdic2ascii(buf, buf, i);
1051 #endif
1052         if ((ne=X509_NAME_ENTRY_create_by_NID(NULL,nid,j,(unsigned char *)buf,
1053                 strlen(buf)))
1054                 == NULL) goto err;
1055         if (!X509_NAME_add_entry(n,ne,X509_NAME_entry_count(n),0))
1056                 goto err;
1057
1058         ret=1;
1059 err:
1060         if (ne != NULL) X509_NAME_ENTRY_free(ne);
1061         return(ret);
1062         }
1063
1064 static int add_attribute_object(STACK_OF(X509_ATTRIBUTE) *n, char *text,
1065                                 char *def, char *value, int nid, int min,
1066                                 int max)
1067         {
1068         int i,z;
1069         X509_ATTRIBUTE *xa=NULL;
1070         static char buf[1024];
1071         ASN1_BIT_STRING *bs=NULL;
1072         ASN1_TYPE *at=NULL;
1073
1074 start:
1075         BIO_printf(bio_err,"%s [%s]:",text,def);
1076         (void)BIO_flush(bio_err);
1077         if (value != NULL)
1078                 {
1079                 strcpy(buf,value);
1080                 strcat(buf,"\n");
1081                 BIO_printf(bio_err,"%s\n",value);
1082                 }
1083         else
1084                 {
1085                 buf[0]='\0';
1086                 fgets(buf,1024,stdin);
1087                 }
1088
1089         if (buf[0] == '\0') return(0);
1090         else if (buf[0] == '\n')
1091                 {
1092                 if ((def == NULL) || (def[0] == '\0'))
1093                         return(1);
1094                 strcpy(buf,def);
1095                 strcat(buf,"\n");
1096                 }
1097         else if ((buf[0] == '.') && (buf[1] == '\n')) return(1);
1098
1099         i=strlen(buf);
1100         if (buf[i-1] != '\n')
1101                 {
1102                 BIO_printf(bio_err,"weird input :-(\n");
1103                 return(0);
1104                 }
1105         buf[--i]='\0';
1106
1107         /* add object plus value */
1108         if ((xa=X509_ATTRIBUTE_new()) == NULL)
1109                 goto err;
1110         if ((xa->value.set=sk_ASN1_TYPE_new_null()) == NULL)
1111                 goto err;
1112         xa->set=1;
1113
1114         if (xa->object != NULL) ASN1_OBJECT_free(xa->object);
1115         xa->object=OBJ_nid2obj(nid);
1116
1117         if ((bs=ASN1_BIT_STRING_new()) == NULL) goto err;
1118
1119         bs->type=ASN1_PRINTABLE_type((unsigned char *)buf,-1);
1120
1121         z=req_fix_data(nid,&bs->type,i,min,max);
1122         if (z == 0)
1123                 {
1124                 if (value == NULL)
1125                         goto start;
1126                 else    goto err;
1127                 }
1128
1129         if (!ASN1_STRING_set(bs,(unsigned char *)buf,i+1))
1130                 { BIO_printf(bio_err,"Malloc failure\n"); goto err; }
1131
1132         if ((at=ASN1_TYPE_new()) == NULL)
1133                 { BIO_printf(bio_err,"Malloc failure\n"); goto err; }
1134
1135         ASN1_TYPE_set(at,bs->type,(char *)bs);
1136         sk_ASN1_TYPE_push(xa->value.set,at);
1137         bs=NULL;
1138         at=NULL;
1139         /* only one item per attribute */
1140
1141         if (!sk_X509_ATTRIBUTE_push(n,xa)) goto err;
1142         return(1);
1143 err:
1144         if (xa != NULL) X509_ATTRIBUTE_free(xa);
1145         if (at != NULL) ASN1_TYPE_free(at);
1146         if (bs != NULL) ASN1_BIT_STRING_free(bs);
1147         return(0);
1148         }
1149
1150 static void MS_CALLBACK req_cb(int p, int n, void *arg)
1151         {
1152         char c='*';
1153
1154         if (p == 0) c='.';
1155         if (p == 1) c='+';
1156         if (p == 2) c='*';
1157         if (p == 3) c='\n';
1158         BIO_write((BIO *)arg,&c,1);
1159         (void)BIO_flush((BIO *)arg);
1160 #ifdef LINT
1161         p=n;
1162 #endif
1163         }
1164
1165 static int req_fix_data(int nid, int *type, int len, int min, int max)
1166         {
1167         if (nid == NID_pkcs9_emailAddress)
1168                 *type=V_ASN1_IA5STRING;
1169         if ((nid == NID_commonName) && (*type == V_ASN1_IA5STRING))
1170                 *type=V_ASN1_T61STRING;
1171         if ((nid == NID_pkcs9_challengePassword) &&
1172                 (*type == V_ASN1_IA5STRING))
1173                 *type=V_ASN1_T61STRING;
1174
1175         if ((nid == NID_pkcs9_unstructuredName) &&
1176                 (*type == V_ASN1_T61STRING))
1177                 {
1178                 BIO_printf(bio_err,"invalid characters in string, please re-enter the string\n");
1179                 return(0);
1180                 }
1181         if (nid == NID_pkcs9_unstructuredName)
1182                 *type=V_ASN1_IA5STRING;
1183
1184         if (len < min)
1185                 {
1186                 BIO_printf(bio_err,"string is too short, it needs to be at least %d bytes long\n",min);
1187                 return(0);
1188                 }
1189         if ((max != 0) && (len > max))
1190                 {
1191                 BIO_printf(bio_err,"string is too long, it needs to be less than  %d bytes long\n",max);
1192                 return(0);
1193                 }
1194         return(1);
1195         }
1196
1197 /* Check if the end of a string matches 'end' */
1198 static int check_end(char *str, char *end)
1199 {
1200         int elen, slen;
1201         char *tmp;
1202         elen = strlen(end);
1203         slen = strlen(str);
1204         if(elen > slen) return 1;
1205         tmp = str + slen - elen;
1206         return strcmp(tmp, end);
1207 }
1208
1209 static int add_oid_section(LHASH *conf)
1210 {
1211         char *p;
1212         STACK_OF(CONF_VALUE) *sktmp;
1213         CONF_VALUE *cnf;
1214         int i;
1215         if(!(p=CONF_get_string(conf,NULL,"oid_section"))) return 1;
1216         if(!(sktmp = CONF_get_section(conf, p))) {
1217                 BIO_printf(bio_err, "problem loading oid section %s\n", p);
1218                 return 0;
1219         }
1220         for(i = 0; i < sk_CONF_VALUE_num(sktmp); i++) {
1221                 cnf = sk_CONF_VALUE_value(sktmp, i);
1222                 if(OBJ_create(cnf->value, cnf->name, cnf->name) == NID_undef) {
1223                         BIO_printf(bio_err, "problem creating object %s=%s\n",
1224                                                          cnf->name, cnf->value);
1225                         return 0;
1226                 }
1227         }
1228         return 1;
1229 }