apps/req.c

   1 /* apps/req.c */
   2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
   3  * All rights reserved.
   4  *
   5  * This package is an SSL implementation written
   6  * by Eric Young (eay@cryptsoft.com).
   7  * The implementation was written so as to conform with Netscapes SSL.
   8  *
   9  * This library is free for commercial and non-commercial use as long as
  10  * the following conditions are aheared to.  The following conditions
  11  * apply to all code found in this distribution, be it the RC4, RSA,
  12  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
  13  * included with this distribution is covered by the same copyright terms
  14  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
  15  *
  16  * Copyright remains Eric Young's, and as such any Copyright notices in
  17  * the code are not to be removed.
  18  * If this package is used in a product, Eric Young should be given attribution
  19  * as the author of the parts of the library used.
  20  * This can be in the form of a textual message at program startup or
  21  * in documentation (online or textual) provided with the package.
  22  *
  23  * Redistribution and use in source and binary forms, with or without
  24  * modification, are permitted provided that the following conditions
  25  * are met:
  26  * 1. Redistributions of source code must retain the copyright
  27  *    notice, this list of conditions and the following disclaimer.
  28  * 2. Redistributions in binary form must reproduce the above copyright
  29  *    notice, this list of conditions and the following disclaimer in the
  30  *    documentation and/or other materials provided with the distribution.
  31  * 3. All advertising materials mentioning features or use of this software
  32  *    must display the following acknowledgement:
  33  *    "This product includes cryptographic software written by
  34  *     Eric Young (eay@cryptsoft.com)"
  35  *    The word 'cryptographic' can be left out if the rouines from the library
  36  *    being used are not cryptographic related :-).
  37  * 4. If you include any Windows specific code (or a derivative thereof) from
  38  *    the apps directory (application code) you must include an acknowledgement:
  39  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
  40  *
  41  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
  42  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  43  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  44  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  45  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  46  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  47  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  48  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  49  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  50  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  51  * SUCH DAMAGE.
  52  *
  53  * The licence and distribution terms for any publically available version or
  54  * derivative of this code cannot be changed.  i.e. this code cannot simply be
  55  * copied and put under another distribution licence
  56  * [including the GNU Public Licence.]
  57  */
  58
  59 #include <stdio.h>
  60 #include <stdlib.h>
  61 #include <time.h>
  62 #include <string.h>
  63 #ifdef NO_STDIO
  64 #define APPS_WIN16
  65 #endif
  66 #include "apps.h"
  67 #include <openssl/bio.h>
  68 #include <openssl/evp.h>
  69 #include <openssl/conf.h>
  70 #include <openssl/err.h>
  71 #include <openssl/asn1.h>
  72 #include <openssl/x509.h>
  73 #include <openssl/x509v3.h>
  74 #include <openssl/objects.h>
  75 #include <openssl/pem.h>
  76
  77 #define SECTION         "req"
  78
  79 #define BITS            "default_bits"
  80 #define KEYFILE         "default_keyfile"
  81 #define DISTINGUISHED_NAME      "distinguished_name"
  82 #define ATTRIBUTES      "attributes"
  83 #define V3_EXTENSIONS   "x509_extensions"
  84 #define REQ_EXTENSIONS  "req_extensions"
  85 #define DIRSTRING_TYPE  "dirstring_type"
  86
  87 #define DEFAULT_KEY_LENGTH      512
  88 #define MIN_KEY_LENGTH          384
  89
  90 #undef PROG
  91 #define PROG    req_main
  92
  93 /* -inform arg  - input format - default PEM (one of DER, TXT or PEM)
  94  * -outform arg - output format - default PEM
  95  * -in arg      - input file - default stdin
  96  * -out arg     - output file - default stdout
  97  * -verify      - check request signature
  98  * -noout       - don't print stuff out.
  99  * -text        - print out human readable text.
 100  * -nodes       - no des encryption
 101  * -config file - Load configuration file.
 102  * -key file    - make a request using key in file (or use it for verification).
 103  * -keyform     - key file format.
 104  * -newkey      - make a key and a request.
 105  * -modulus     - print RSA modulus.
 106  * -x509        - output a self signed X509 structure instead.
 107  * -asn1-kludge - output new certificate request in a format that some CA's
 108  *                require.  This format is wrong
 109  */
 110
 111 static int make_REQ(X509_REQ *req,EVP_PKEY *pkey,int attribs);
 112 static int add_attribute_object(STACK_OF(X509_ATTRIBUTE) *n, char *text,
 113                                 char *def, char *value, int nid, int min,
 114                                 int max);
 115 static int add_DN_object(X509_NAME *n, char *text, char *def, char *value,
 116         int nid,int min,int max);
 117 static void MS_CALLBACK req_cb(int p,int n,void *arg);
 118 static int req_fix_data(int nid,int *type,int len,int min,int max);
 119 static int check_end(char *str, char *end);
 120 static int add_oid_section(LHASH *conf);
 121 #ifndef MONOLITH
 122 static char *default_config_file=NULL;
 123 static LHASH *config=NULL;
 124 #endif
 125 static LHASH *req_conf=NULL;
 126
 127 #define TYPE_RSA        1
 128 #define TYPE_DSA        2
 129 #define TYPE_DH         3
 130
 131 int MAIN(int argc, char **argv)
 132         {
 133 #ifndef NO_DSA
 134         DSA *dsa_params=NULL;
 135 #endif
 136         int ex=1,x509=0,days=30;
 137         X509 *x509ss=NULL;
 138         X509_REQ *req=NULL;
 139         EVP_PKEY *pkey=NULL;
 140         int i,badops=0,newreq=0,newkey= -1,pkey_type=0;
 141         BIO *in=NULL,*out=NULL;
 142         int informat,outformat,verify=0,noout=0,text=0,keyform=FORMAT_PEM;
 143         int nodes=0,kludge=0;
 144         char *infile,*outfile,*prog,*keyfile=NULL,*template=NULL,*keyout=NULL;
 145         char *extensions = NULL;
 146         char *req_exts = NULL;
 147         EVP_CIPHER *cipher=NULL;
 148         int modulus=0;
 149         char *passin = NULL, *passout = NULL;
 150         char *p;
 151         const EVP_MD *md_alg=NULL,*digest=EVP_md5();
 152 #ifndef MONOLITH
 153         MS_STATIC char config_name[256];
 154 #endif
 155
 156         req_conf = NULL;
 157 #ifndef NO_DES
 158         cipher=EVP_des_ede3_cbc();
 159 #endif
 160         apps_startup();
 161
 162         if (bio_err == NULL)
 163                 if ((bio_err=BIO_new(BIO_s_file())) != NULL)
 164                         BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);
 165
 166         infile=NULL;
 167         outfile=NULL;
 168         informat=FORMAT_PEM;
 169         outformat=FORMAT_PEM;
 170
 171         prog=argv[0];
 172         argc--;
 173         argv++;
 174         while (argc >= 1)
 175                 {
 176                 if      (strcmp(*argv,"-inform") == 0)
 177                         {
 178                         if (--argc < 1) goto bad;
 179                         informat=str2fmt(*(++argv));
 180                         }
 181                 else if (strcmp(*argv,"-outform") == 0)
 182                         {
 183                         if (--argc < 1) goto bad;
 184                         outformat=str2fmt(*(++argv));
 185                         }
 186                 else if (strcmp(*argv,"-key") == 0)
 187                         {
 188                         if (--argc < 1) goto bad;
 189                         keyfile= *(++argv);
 190                         }
 191                 else if (strcmp(*argv,"-new") == 0)
 192                         {
 193                         pkey_type=TYPE_RSA;
 194                         newreq=1;
 195                         }
 196                 else if (strcmp(*argv,"-config") == 0)
 197                         {
 198                         if (--argc < 1) goto bad;
 199                         template= *(++argv);
 200                         }
 201                 else if (strcmp(*argv,"-keyform") == 0)
 202                         {
 203                         if (--argc < 1) goto bad;
 204                         keyform=str2fmt(*(++argv));
 205                         }
 206                 else if (strcmp(*argv,"-in") == 0)
 207                         {
 208                         if (--argc < 1) goto bad;
 209                         infile= *(++argv);
 210                         }
 211                 else if (strcmp(*argv,"-out") == 0)
 212                         {
 213                         if (--argc < 1) goto bad;
 214                         outfile= *(++argv);
 215                         }
 216                 else if (strcmp(*argv,"-keyout") == 0)
 217                         {
 218                         if (--argc < 1) goto bad;
 219                         keyout= *(++argv);
 220                         }
 221                 else if (strcmp(*argv,"-passin") == 0)
 222                         {
 223                         if (--argc < 1) goto bad;
 224                         passin= *(++argv);
 225                         }
 226                 else if (strcmp(*argv,"-envpassin") == 0)
 227                         {
 228                         if (--argc < 1) goto bad;
 229                                 if(!(passin= getenv(*(++argv))))
 230                                 {
 231                                 BIO_printf(bio_err,
 232                                  "Can't read environment variable %s\n",
 233                                                                 *argv);
 234                                 badops = 1;
 235                                 }
 236                         }
 237                 else if (strcmp(*argv,"-envpassout") == 0)
 238                         {
 239                         if (--argc < 1) goto bad;
 240                         if(!(passout= getenv(*(++argv))))
 241                                 {
 242                                 BIO_printf(bio_err,
 243                                  "Can't read environment variable %s\n",
 244                                                                 *argv);
 245                                 badops = 1;
 246                                 }
 247                         }
 248                 else if (strcmp(*argv,"-passout") == 0)
 249                         {
 250                         if (--argc < 1) goto bad;
 251                         passout= *(++argv);
 252                         }
 253                 else if (strcmp(*argv,"-newkey") == 0)
 254                         {
 255                         int is_numeric;
 256
 257                         if (--argc < 1) goto bad;
 258                         p= *(++argv);
 259                         is_numeric = p[0] >= '0' && p[0] <= '9';
 260                         if (strncmp("rsa:",p,4) == 0 || is_numeric)
 261                                 {
 262                                 pkey_type=TYPE_RSA;
 263                                 if(!is_numeric)
 264                                     p+=4;
 265                                 newkey= atoi(p);
 266                                 }
 267                         else
 268 #ifndef NO_DSA
 269                                 if (strncmp("dsa:",p,4) == 0)
 270                                 {
 271                                 X509 *xtmp=NULL;
 272                                 EVP_PKEY *dtmp;
 273
 274                                 pkey_type=TYPE_DSA;
 275                                 p+=4;
 276                                 if ((in=BIO_new_file(p,"r")) == NULL)
 277                                         {
 278                                         perror(p);
 279                                         goto end;
 280                                         }
 281                                 if ((dsa_params=PEM_read_bio_DSAparams(in,NULL,NULL,NULL)) == NULL)
 282                                         {
 283                                         ERR_clear_error();
 284                                         (void)BIO_reset(in);
 285                                         if ((xtmp=PEM_read_bio_X509(in,NULL,NULL,NULL)) == NULL)
 286                                                 {
 287                                                 BIO_printf(bio_err,"unable to load DSA parameters from file\n");
 288                                                 goto end;
 289                                                 }
 290
 291                                         dtmp=X509_get_pubkey(xtmp);
 292                                         if (dtmp->type == EVP_PKEY_DSA)
 293                                                 dsa_params=DSAparams_dup(dtmp->pkey.dsa);
 294                                         EVP_PKEY_free(dtmp);
 295                                         X509_free(xtmp);
 296                                         if (dsa_params == NULL)
 297                                                 {
 298                                                 BIO_printf(bio_err,"Certificate does not contain DSA parameters\n");
 299                                                 goto end;
 300                                                 }
 301                                         }
 302                                 BIO_free(in);
 303                                 newkey=BN_num_bits(dsa_params->p);
 304                                 in=NULL;
 305                                 }
 306                         else
 307 #endif
 308 #ifndef NO_DH
 309                                 if (strncmp("dh:",p,4) == 0)
 310                                 {
 311                                 pkey_type=TYPE_DH;
 312                                 p+=3;
 313                                 }
 314                         else
 315 #endif
 316                                 pkey_type=TYPE_RSA;
 317
 318                         newreq=1;
 319                         }
 320                 else if (strcmp(*argv,"-modulus") == 0)
 321                         modulus=1;
 322                 else if (strcmp(*argv,"-verify") == 0)
 323                         verify=1;
 324                 else if (strcmp(*argv,"-nodes") == 0)
 325                         nodes=1;
 326                 else if (strcmp(*argv,"-noout") == 0)
 327                         noout=1;
 328                 else if (strcmp(*argv,"-text") == 0)
 329                         text=1;
 330                 else if (strcmp(*argv,"-x509") == 0)
 331                         x509=1;
 332                 else if (strcmp(*argv,"-asn1-kludge") == 0)
 333                         kludge=1;
 334                 else if (strcmp(*argv,"-no-asn1-kludge") == 0)
 335                         kludge=0;
 336                 else if (strcmp(*argv,"-days") == 0)
 337                         {
 338                         if (--argc < 1) goto bad;
 339                         days= atoi(*(++argv));
 340                         if (days == 0) days=30;
 341                         }
 342                 else if ((md_alg=EVP_get_digestbyname(&((*argv)[1]))) != NULL)
 343                         {
 344                         /* ok */
 345                         digest=md_alg;
 346                         }
 347                 else if (strcmp(*argv,"-extensions") == 0)
 348                         {
 349                         if (--argc < 1) goto bad;
 350                         extensions = *(++argv);
 351                         }
 352                 else if (strcmp(*argv,"-reqexts") == 0)
 353                         {
 354                         if (--argc < 1) goto bad;
 355                         req_exts = *(++argv);
 356                         }
 357                 else
 358                         {
 359                         BIO_printf(bio_err,"unknown option %s\n",*argv);
 360                         badops=1;
 361                         break;
 362                         }
 363                 argc--;
 364                 argv++;
 365                 }
 366
 367         if (badops)
 368                 {
 369 bad:
 370                 BIO_printf(bio_err,"%s [options] <infile >outfile\n",prog);
 371                 BIO_printf(bio_err,"where options  are\n");
 372                 BIO_printf(bio_err," -inform arg    input format - one of DER TXT PEM\n");
 373                 BIO_printf(bio_err," -outform arg   output format - one of DER TXT PEM\n");
 374                 BIO_printf(bio_err," -in arg        input file\n");
 375                 BIO_printf(bio_err," -out arg       output file\n");
 376                 BIO_printf(bio_err," -text          text form of request\n");
 377                 BIO_printf(bio_err," -noout         do not output REQ\n");
 378                 BIO_printf(bio_err," -verify        verify signature on REQ\n");
 379                 BIO_printf(bio_err," -modulus       RSA modulus\n");
 380                 BIO_printf(bio_err," -nodes         don't encrypt the output key\n");
 381                 BIO_printf(bio_err," -key file  use the private key contained in file\n");
 382                 BIO_printf(bio_err," -keyform arg   key file format\n");
 383                 BIO_printf(bio_err," -keyout arg    file to send the key to\n");
 384                 BIO_printf(bio_err," -newkey rsa:bits generate a new RSA key of 'bits' in size\n");
 385                 BIO_printf(bio_err," -newkey dsa:file generate a new DSA key, parameters taken from CA in 'file'\n");
 386
 387                 BIO_printf(bio_err," -[digest]      Digest to sign with (md5, sha1, md2, mdc2)\n");
 388                 BIO_printf(bio_err," -config file   request template file.\n");
 389                 BIO_printf(bio_err," -new           new request.\n");
 390                 BIO_printf(bio_err," -x509          output a x509 structure instead of a cert. req.\n");
 391                 BIO_printf(bio_err," -days          number of days a x509 generated by -x509 is valid for.\n");
 392                 BIO_printf(bio_err," -asn1-kludge   Output the 'request' in a format that is wrong but some CA's\n");
 393                 BIO_printf(bio_err,"                have been reported as requiring\n");
 394                 BIO_printf(bio_err,"                [ It is now always turned on but can be turned off with -no-asn1-kludge ]\n");
 395                 BIO_printf(bio_err," -extensions .. specify certificate extension section (override value in config file)\n");
 396                 BIO_printf(bio_err," -reqexts ..    specify request extension section (override value in config file)\n");
 397                 goto end;
 398                 }
 399
 400         ERR_load_crypto_strings();
 401
 402 #ifndef MONOLITH /* else this has happened in openssl.c (global `config') */
 403         /* Lets load up our environment a little */
 404         p=getenv("OPENSSL_CONF");
 405         if (p == NULL)
 406                 p=getenv("SSLEAY_CONF");
 407         if (p == NULL)
 408                 {
 409                 strcpy(config_name,X509_get_default_cert_area());
 410 #ifndef VMS
 411                 strcat(config_name,"/");
 412 #endif
 413                 strcat(config_name,OPENSSL_CONF);
 414                 p=config_name;
 415                 }
 416         default_config_file=p;
 417         config=CONF_load(config,p,NULL);
 418 #endif
 419
 420         if (template != NULL)
 421                 {
 422                 long errline;
 423
 424                 BIO_printf(bio_err,"Using configuration from %s\n",template);
 425                 req_conf=CONF_load(NULL,template,&errline);
 426                 if (req_conf == NULL)
 427                         {
 428                         BIO_printf(bio_err,"error on line %ld of %s\n",errline,template);
 429                         goto end;
 430                         }
 431                 }
 432         else
 433                 {
 434                 req_conf=config;
 435                 BIO_printf(bio_err,"Using configuration from %s\n",
 436                         default_config_file);
 437                 if (req_conf == NULL)
 438                         {
 439                         BIO_printf(bio_err,"Unable to load config info\n");
 440                         }
 441                 }
 442
 443         if (req_conf != NULL)
 444                 {
 445                 p=CONF_get_string(req_conf,NULL,"oid_file");
 446                 if (p != NULL)
 447                         {
 448                         BIO *oid_bio;
 449
 450                         oid_bio=BIO_new_file(p,"r");
 451                         if (oid_bio == NULL)
 452                                 {
 453                                 /*
 454                                 BIO_printf(bio_err,"problems opening %s for extra oid's\n",p);
 455                                 ERR_print_errors(bio_err);
 456                                 */
 457                                 }
 458                         else
 459                                 {
 460                                 OBJ_create_objects(oid_bio);
 461                                 BIO_free(oid_bio);
 462                                 }
 463                         }
 464                 }
 465                 if(!add_oid_section(req_conf)) goto end;
 466
 467         if ((md_alg == NULL) &&
 468                 ((p=CONF_get_string(req_conf,SECTION,"default_md")) != NULL))
 469                 {
 470                 if ((md_alg=EVP_get_digestbyname(p)) != NULL)
 471                         digest=md_alg;
 472                 }
 473
 474         if(!extensions)
 475                 extensions = CONF_get_string(req_conf, SECTION, V3_EXTENSIONS);
 476         if(extensions) {
 477                 /* Check syntax of file */
 478                 X509V3_CTX ctx;
 479                 X509V3_set_ctx_test(&ctx);
 480                 X509V3_set_conf_lhash(&ctx, req_conf);
 481                 if(!X509V3_EXT_add_conf(req_conf, &ctx, extensions, NULL)) {
 482                         BIO_printf(bio_err,
 483                          "Error Loading extension section %s\n", extensions);
 484                         goto end;
 485                 }
 486         }
 487
 488         if(!passin)
 489                 passin = CONF_get_string(req_conf, SECTION, "input_password");
 490
 491         if(!passout)
 492                 passout = CONF_get_string(req_conf, SECTION, "output_password");
 493
 494         p = CONF_get_string(req_conf, SECTION, DIRSTRING_TYPE);
 495
 496         if(p && !ASN1_STRING_set_default_mask_asc(p)) {
 497                 BIO_printf(bio_err, "Invalid DiretoryString setting %s", p);
 498                 goto end;
 499         }
 500
 501         if(!req_exts)
 502                 req_exts = CONF_get_string(req_conf, SECTION, REQ_EXTENSIONS);
 503         if(req_exts) {
 504                 /* Check syntax of file */
 505                 X509V3_CTX ctx;
 506                 X509V3_set_ctx_test(&ctx);
 507                 X509V3_set_conf_lhash(&ctx, req_conf);
 508                 if(!X509V3_EXT_add_conf(req_conf, &ctx, req_exts, NULL)) {
 509                         BIO_printf(bio_err,
 510                          "Error Loading request extension section %s\n",
 511                                                                 req_exts);
 512                         goto end;
 513                 }
 514         }
 515
 516         in=BIO_new(BIO_s_file());
 517         out=BIO_new(BIO_s_file());
 518         if ((in == NULL) || (out == NULL))
 519                 goto end;
 520
 521         if (keyfile != NULL)
 522                 {
 523                 if (BIO_read_filename(in,keyfile) <= 0)
 524                         {
 525                         perror(keyfile);
 526                         goto end;
 527                         }
 528
 529                 if (keyform == FORMAT_ASN1)
 530                         pkey=d2i_PrivateKey_bio(in,NULL);
 531                 else if (keyform == FORMAT_PEM)
 532                         {
 533                         pkey=PEM_read_bio_PrivateKey(in,NULL,PEM_cb,passin);
 534                         }
 535                 else
 536                         {
 537                         BIO_printf(bio_err,"bad input format specified for X509 request\n");
 538                         goto end;
 539                         }
 540
 541                 if (pkey == NULL)
 542                         {
 543                         BIO_printf(bio_err,"unable to load Private key\n");
 544                         goto end;
 545                         }
 546                 }
 547
 548         if (newreq && (pkey == NULL))
 549                 {
 550                 char *randfile = CONF_get_string(req_conf,SECTION,"RANDFILE");
 551                 app_RAND_load_file(randfile, bio_err, 0);
 552
 553                 if (newkey <= 0)
 554                         {
 555                         newkey=(int)CONF_get_number(req_conf,SECTION,BITS);
 556                         if (newkey <= 0)
 557                                 newkey=DEFAULT_KEY_LENGTH;
 558                         }
 559
 560                 if (newkey < MIN_KEY_LENGTH)
 561                         {
 562                         BIO_printf(bio_err,"private key length is too short,\n");
 563                         BIO_printf(bio_err,"it needs to be at least %d bits, not %d\n",MIN_KEY_LENGTH,newkey);
 564                         goto end;
 565                         }
 566                 BIO_printf(bio_err,"Generating a %d bit %s private key\n",
 567                         newkey,(pkey_type == TYPE_RSA)?"RSA":"DSA");
 568
 569                 if ((pkey=EVP_PKEY_new()) == NULL) goto end;
 570
 571 #ifndef NO_RSA
 572                 if (pkey_type == TYPE_RSA)
 573                         {
 574                         if (!EVP_PKEY_assign_RSA(pkey,
 575                                 RSA_generate_key(newkey,0x10001,
 576                                         req_cb,bio_err)))
 577                                 goto end;
 578                         }
 579                 else
 580 #endif
 581 #ifndef NO_DSA
 582                         if (pkey_type == TYPE_DSA)
 583                         {
 584                         if (!DSA_generate_key(dsa_params)) goto end;
 585                         if (!EVP_PKEY_assign_DSA(pkey,dsa_params)) goto end;
 586                         dsa_params=NULL;
 587                         }
 588 #endif
 589
 590                 app_RAND_write_file(randfile, bio_err);
 591
 592                 if (pkey == NULL) goto end;
 593
 594                 if (keyout == NULL)
 595                         keyout=CONF_get_string(req_conf,SECTION,KEYFILE);
 596
 597                 if (keyout == NULL)
 598                         {
 599                         BIO_printf(bio_err,"writing new private key to stdout\n");
 600                         BIO_set_fp(out,stdout,BIO_NOCLOSE);
 601                         }
 602                 else
 603                         {
 604                         BIO_printf(bio_err,"writing new private key to '%s'\n",keyout);
 605                         if (BIO_write_filename(out,keyout) <= 0)
 606                                 {
 607                                 perror(keyout);
 608                                 goto end;
 609                                 }
 610                         }
 611
 612                 p=CONF_get_string(req_conf,SECTION,"encrypt_rsa_key");
 613                 if (p == NULL)
 614                         p=CONF_get_string(req_conf,SECTION,"encrypt_key");
 615                 if ((p != NULL) && (strcmp(p,"no") == 0))
 616                         cipher=NULL;
 617                 if (nodes) cipher=NULL;
 618
 619                 i=0;
 620 loop:
 621                 if (!PEM_write_bio_PrivateKey(out,pkey,cipher,
 622                         NULL,0,PEM_cb,passout))
 623                         {
 624                         if ((ERR_GET_REASON(ERR_peek_error()) ==
 625                                 PEM_R_PROBLEMS_GETTING_PASSWORD) && (i < 3))
 626                                 {
 627                                 ERR_clear_error();
 628                                 i++;
 629                                 goto loop;
 630                                 }
 631                         goto end;
 632                         }
 633                 BIO_printf(bio_err,"-----\n");
 634                 }
 635
 636         if (!newreq)
 637                 {
 638                 /* Since we are using a pre-existing certificate
 639                  * request, the kludge 'format' info should not be
 640                  * changed. */
 641                 kludge= -1;
 642                 if (infile == NULL)
 643                         BIO_set_fp(in,stdin,BIO_NOCLOSE);
 644                 else
 645                         {
 646                         if (BIO_read_filename(in,infile) <= 0)
 647                                 {
 648                                 perror(infile);
 649                                 goto end;
 650                                 }
 651                         }
 652
 653                 if      (informat == FORMAT_ASN1)
 654                         req=d2i_X509_REQ_bio(in,NULL);
 655                 else if (informat == FORMAT_PEM)
 656                         req=PEM_read_bio_X509_REQ(in,NULL,NULL,NULL);
 657                 else
 658                         {
 659                         BIO_printf(bio_err,"bad input format specified for X509 request\n");
 660                         goto end;
 661                         }
 662                 if (req == NULL)
 663                         {
 664                         BIO_printf(bio_err,"unable to load X509 request\n");
 665                         goto end;
 666                         }
 667                 }
 668
 669         if (newreq || x509)
 670                 {
 671 #ifndef NO_DSA
 672                 if (pkey->type == EVP_PKEY_DSA)
 673                         digest=EVP_dss1();
 674 #endif
 675
 676                 if (pkey == NULL)
 677                         {
 678                         BIO_printf(bio_err,"you need to specify a private key\n");
 679                         goto end;
 680                         }
 681                 if (req == NULL)
 682                         {
 683                         req=X509_REQ_new();
 684                         if (req == NULL)
 685                                 {
 686                                 goto end;
 687                                 }
 688
 689                         i=make_REQ(req,pkey,!x509);
 690                         if (kludge >= 0)
 691                                 req->req_info->req_kludge=kludge;
 692                         if (!i)
 693                                 {
 694                                 BIO_printf(bio_err,"problems making Certificate Request\n");
 695                                 goto end;
 696                                 }
 697                         }
 698                 if (x509)
 699                         {
 700                         EVP_PKEY *tmppkey;
 701                         X509V3_CTX ext_ctx;
 702                         if ((x509ss=X509_new()) == NULL) goto end;
 703
 704                         /* Set version to V3 */
 705                         if(!X509_set_version(x509ss, 2)) goto end;
 706                         ASN1_INTEGER_set(X509_get_serialNumber(x509ss),0L);
 707
 708                         X509_set_issuer_name(x509ss,
 709                                 X509_REQ_get_subject_name(req));
 710                         X509_gmtime_adj(X509_get_notBefore(x509ss),0);
 711                         X509_gmtime_adj(X509_get_notAfter(x509ss),
 712                                 (long)60*60*24*days);
 713                         X509_set_subject_name(x509ss,
 714                                 X509_REQ_get_subject_name(req));
 715                         tmppkey = X509_REQ_get_pubkey(req);
 716                         X509_set_pubkey(x509ss,tmppkey);
 717                         EVP_PKEY_free(tmppkey);
 718
 719                         /* Set up V3 context struct */
 720
 721                         X509V3_set_ctx(&ext_ctx, x509ss, x509ss, NULL, NULL, 0);
 722                         X509V3_set_conf_lhash(&ext_ctx, req_conf);
 723
 724                         /* Add extensions */
 725                         if(extensions && !X509V3_EXT_add_conf(req_conf,
 726                                         &ext_ctx, extensions, x509ss))
 727                             {
 728                             BIO_printf(bio_err,
 729                                        "Error Loading extension section %s\n",
 730                                        extensions);
 731                             goto end;
 732                             }
 733
 734                         if (!(i=X509_sign(x509ss,pkey,digest)))
 735                                 goto end;
 736                         }
 737                 else
 738                         {
 739                         X509V3_CTX ext_ctx;
 740
 741                         /* Set up V3 context struct */
 742
 743                         X509V3_set_ctx(&ext_ctx, NULL, NULL, req, NULL, 0);
 744                         X509V3_set_conf_lhash(&ext_ctx, req_conf);
 745
 746                         /* Add extensions */
 747                         if(req_exts && !X509V3_EXT_REQ_add_conf(req_conf,
 748                                         &ext_ctx, req_exts, req))
 749                             {
 750                             BIO_printf(bio_err,
 751                                        "Error Loading extension section %s\n",
 752                                        req_exts);
 753                             goto end;
 754                             }
 755                         if (!(i=X509_REQ_sign(req,pkey,digest)))
 756                                 goto end;
 757                         }
 758                 }
 759
 760         if (verify && !x509)
 761                 {
 762                 int tmp=0;
 763
 764                 if (pkey == NULL)
 765                         {
 766                         pkey=X509_REQ_get_pubkey(req);
 767                         tmp=1;
 768                         if (pkey == NULL) goto end;
 769                         }
 770
 771                 i=X509_REQ_verify(req,pkey);
 772                 if (tmp) {
 773                         EVP_PKEY_free(pkey);
 774                         pkey=NULL;
 775                 }
 776
 777                 if (i < 0)
 778                         {
 779                         goto end;
 780                         }
 781                 else if (i == 0)
 782                         {
 783                         BIO_printf(bio_err,"verify failure\n");
 784                         }
 785                 else /* if (i > 0) */
 786                         BIO_printf(bio_err,"verify OK\n");
 787                 }
 788
 789         if (noout && !text && !modulus)
 790                 {
 791                 ex=0;
 792                 goto end;
 793                 }
 794
 795         if (outfile == NULL)
 796                 BIO_set_fp(out,stdout,BIO_NOCLOSE);
 797         else
 798                 {
 799                 if ((keyout != NULL) && (strcmp(outfile,keyout) == 0))
 800                         i=(int)BIO_append_filename(out,outfile);
 801                 else
 802                         i=(int)BIO_write_filename(out,outfile);
 803                 if (!i)
 804                         {
 805                         perror(outfile);
 806                         goto end;
 807                         }
 808                 }
 809
 810         if (text)
 811                 {
 812                 if (x509)
 813                         X509_print(out,x509ss);
 814                 else
 815                         X509_REQ_print(out,req);
 816                 }
 817
 818         if (modulus)
 819                 {
 820                 EVP_PKEY *pubkey;
 821
 822                 if (x509)
 823                         pubkey=X509_get_pubkey(x509ss);
 824                 else
 825                         pubkey=X509_REQ_get_pubkey(req);
 826                 if (pubkey == NULL)
 827                         {
 828                         fprintf(stdout,"Modulus=unavailable\n");
 829                         goto end;
 830                         }
 831                 fprintf(stdout,"Modulus=");
 832 #ifndef NO_RSA
 833                 if (pubkey->type == EVP_PKEY_RSA)
 834                         BN_print(out,pubkey->pkey.rsa->n);
 835                 else
 836 #endif
 837                         fprintf(stdout,"Wrong Algorithm type");
 838                 fprintf(stdout,"\n");
 839                 }
 840
 841         if (!noout && !x509)
 842                 {
 843                 if      (outformat == FORMAT_ASN1)
 844                         i=i2d_X509_REQ_bio(out,req);
 845                 else if (outformat == FORMAT_PEM)
 846                         i=PEM_write_bio_X509_REQ(out,req);
 847                 else    {
 848                         BIO_printf(bio_err,"bad output format specified for outfile\n");
 849                         goto end;
 850                         }
 851                 if (!i)
 852                         {
 853                         BIO_printf(bio_err,"unable to write X509 request\n");
 854                         goto end;
 855                         }
 856                 }
 857         if (!noout && x509 && (x509ss != NULL))
 858                 {
 859                 if      (outformat == FORMAT_ASN1)
 860                         i=i2d_X509_bio(out,x509ss);
 861                 else if (outformat == FORMAT_PEM)
 862                         i=PEM_write_bio_X509(out,x509ss);
 863                 else    {
 864                         BIO_printf(bio_err,"bad output format specified for outfile\n");
 865                         goto end;
 866                         }
 867                 if (!i)
 868                         {
 869                         BIO_printf(bio_err,"unable to write X509 certificate\n");
 870                         goto end;
 871                         }
 872                 }
 873         ex=0;
 874 end:
 875         if (ex)
 876                 {
 877                 ERR_print_errors(bio_err);
 878                 }
 879         if ((req_conf != NULL) && (req_conf != config)) CONF_free(req_conf);
 880         BIO_free(in);
 881         BIO_free(out);
 882         EVP_PKEY_free(pkey);
 883         X509_REQ_free(req);
 884         X509_free(x509ss);
 885         OBJ_cleanup();
 886 #ifndef NO_DSA
 887         if (dsa_params != NULL) DSA_free(dsa_params);
 888 #endif
 889         EXIT(ex);
 890         }
 891
 892 static int make_REQ(X509_REQ *req, EVP_PKEY *pkey, int attribs)
 893         {
 894         int ret=0,i;
 895         char *p,*q;
 896         X509_REQ_INFO *ri;
 897         char buf[100];
 898         int nid,min,max;
 899         char *type,*def,*tmp,*value,*tmp_attr;
 900         STACK_OF(CONF_VALUE) *sk, *attr=NULL;
 901         CONF_VALUE *v;
 902
 903         tmp=CONF_get_string(req_conf,SECTION,DISTINGUISHED_NAME);
 904         if (tmp == NULL)
 905                 {
 906                 BIO_printf(bio_err,"unable to find '%s' in config\n",
 907                         DISTINGUISHED_NAME);
 908                 goto err;
 909                 }
 910         sk=CONF_get_section(req_conf,tmp);
 911         if (sk == NULL)
 912                 {
 913                 BIO_printf(bio_err,"unable to get '%s' section\n",tmp);
 914                 goto err;
 915                 }
 916
 917         tmp_attr=CONF_get_string(req_conf,SECTION,ATTRIBUTES);
 918         if (tmp_attr == NULL)
 919                 attr=NULL;
 920         else
 921                 {
 922                 attr=CONF_get_section(req_conf,tmp_attr);
 923                 if (attr == NULL)
 924                         {
 925                         BIO_printf(bio_err,"unable to get '%s' section\n",tmp_attr);
 926                         goto err;
 927                         }
 928                 }
 929
 930         ri=req->req_info;
 931
 932         /* setup version number */
 933         if (!ASN1_INTEGER_set(ri->version,0L)) goto err; /* version 1 */
 934
 935         BIO_printf(bio_err,"You are about to be asked to enter information that will be incorporated\n");
 936         BIO_printf(bio_err,"into your certificate request.\n");
 937         BIO_printf(bio_err,"What you are about to enter is what is called a Distinguished Name or a DN.\n");
 938         BIO_printf(bio_err,"There are quite a few fields but you can leave some blank\n");
 939         BIO_printf(bio_err,"For some fields there will be a default value,\n");
 940         BIO_printf(bio_err,"If you enter '.', the field will be left blank.\n");
 941         BIO_printf(bio_err,"-----\n");
 942
 943
 944         if (sk_CONF_VALUE_num(sk))
 945                 {
 946                 i= -1;
 947 start:          for (;;)
 948                         {
 949                         i++;
 950                         if (sk_CONF_VALUE_num(sk) <= i) break;
 951
 952                         v=sk_CONF_VALUE_value(sk,i);
 953                         p=q=NULL;
 954                         type=v->name;
 955                         if(!check_end(type,"_min") || !check_end(type,"_max") ||
 956                                 !check_end(type,"_default") ||
 957                                          !check_end(type,"_value")) continue;
 958                         /* Skip past any leading X. X: X, etc to allow for
 959                          * multiple instances
 960                          */
 961                         for(p = v->name; *p ; p++)
 962                                 if ((*p == ':') || (*p == ',') ||
 963                                                          (*p == '.')) {
 964                                         p++;
 965                                         if(*p) type = p;
 966                                         break;
 967                                 }
 968                         /* If OBJ not recognised ignore it */
 969                         if ((nid=OBJ_txt2nid(type)) == NID_undef) goto start;
 970                         sprintf(buf,"%s_default",v->name);
 971                         if ((def=CONF_get_string(req_conf,tmp,buf)) == NULL)
 972                                 def="";
 973
 974                         sprintf(buf,"%s_value",v->name);
 975                         if ((value=CONF_get_string(req_conf,tmp,buf)) == NULL)
 976                                 value=NULL;
 977
 978                         sprintf(buf,"%s_min",v->name);
 979                         min=(int)CONF_get_number(req_conf,tmp,buf);
 980
 981                         sprintf(buf,"%s_max",v->name);
 982                         max=(int)CONF_get_number(req_conf,tmp,buf);
 983
 984                         if (!add_DN_object(ri->subject,v->value,def,value,nid,
 985                                 min,max))
 986                                 goto err;
 987                         }
 988                 if (sk_X509_NAME_ENTRY_num(ri->subject->entries) == 0)
 989                         {
 990                         BIO_printf(bio_err,"error, no objects specified in config file\n");
 991                         goto err;
 992                         }
 993
 994                 if (attribs)
 995                         {
 996                         if ((attr != NULL) && (sk_CONF_VALUE_num(attr) > 0))
 997                                 {
 998                                 BIO_printf(bio_err,"\nPlease enter the following 'extra' attributes\n");
 999                                 BIO_printf(bio_err,"to be sent with your certificate request\n");
1000                                 }
1001
1002                         i= -1;
1003 start2:                 for (;;)
1004                                 {
1005                                 i++;
1006                                 if ((attr == NULL) ||
1007                                             (sk_CONF_VALUE_num(attr) <= i))
1008                                         break;
1009
1010                                 v=sk_CONF_VALUE_value(attr,i);
1011                                 type=v->name;
1012                                 if ((nid=OBJ_txt2nid(type)) == NID_undef)
1013                                         goto start2;
1014
1015                                 sprintf(buf,"%s_default",type);
1016                                 if ((def=CONF_get_string(req_conf,tmp_attr,buf))
1017                                         == NULL)
1018                                         def="";
1019
1020                                 sprintf(buf,"%s_value",type);
1021                                 if ((value=CONF_get_string(req_conf,tmp_attr,buf))
1022                                         == NULL)
1023                                         value=NULL;
1024
1025                                 sprintf(buf,"%s_min",type);
1026                                 min=(int)CONF_get_number(req_conf,tmp_attr,buf);
1027
1028                                 sprintf(buf,"%s_max",type);
1029                                 max=(int)CONF_get_number(req_conf,tmp_attr,buf);
1030
1031                                 if (!add_attribute_object(ri->attributes,
1032                                         v->value,def,value,nid,min,max))
1033                                         goto err;
1034                                 }
1035                         }
1036                 }
1037         else
1038                 {
1039                 BIO_printf(bio_err,"No template, please set one up.\n");
1040                 goto err;
1041                 }
1042
1043         X509_REQ_set_pubkey(req,pkey);
1044
1045         ret=1;
1046 err:
1047         return(ret);
1048         }
1049
1050 static int add_DN_object(X509_NAME *n, char *text, char *def, char *value,
1051              int nid, int min, int max)
1052         {
1053         int i,ret=0;
1054         MS_STATIC char buf[1024];
1055
1056         BIO_printf(bio_err,"%s [%s]:",text,def);
1057         (void)BIO_flush(bio_err);
1058         if (value != NULL)
1059                 {
1060                 strcpy(buf,value);
1061                 strcat(buf,"\n");
1062                 BIO_printf(bio_err,"%s\n",value);
1063                 }
1064         else
1065                 {
1066                 buf[0]='\0';
1067                 fgets(buf,1024,stdin);
1068                 }
1069
1070         if (buf[0] == '\0') return(0);
1071         else if (buf[0] == '\n')
1072                 {
1073                 if ((def == NULL) || (def[0] == '\0'))
1074                         return(1);
1075                 strcpy(buf,def);
1076                 strcat(buf,"\n");
1077                 }
1078         else if ((buf[0] == '.') && (buf[1] == '\n')) return(1);
1079
1080         i=strlen(buf);
1081         if (buf[i-1] != '\n')
1082                 {
1083                 BIO_printf(bio_err,"weird input :-(\n");
1084                 return(0);
1085                 }
1086         buf[--i]='\0';
1087
1088 #ifdef CHARSET_EBCDIC
1089         ebcdic2ascii(buf, buf, i);
1090 #endif
1091         if(!req_fix_data(-1, NULL, i, min, max)) goto err;
1092         if (!X509_NAME_add_entry_by_NID(n,nid, MBSTRING_ASC,
1093                                 (unsigned char *) buf, -1,-1,0)) goto err;
1094         ret=1;
1095 err:
1096         return(ret);
1097         }
1098
1099 static int add_attribute_object(STACK_OF(X509_ATTRIBUTE) *n, char *text,
1100                                 char *def, char *value, int nid, int min,
1101                                 int max)
1102         {
1103         int i,z;
1104         X509_ATTRIBUTE *xa=NULL;
1105         static char buf[1024];
1106         ASN1_BIT_STRING *bs=NULL;
1107         ASN1_TYPE *at=NULL;
1108
1109 start:
1110         BIO_printf(bio_err,"%s [%s]:",text,def);
1111         (void)BIO_flush(bio_err);
1112         if (value != NULL)
1113                 {
1114                 strcpy(buf,value);
1115                 strcat(buf,"\n");
1116                 BIO_printf(bio_err,"%s\n",value);
1117                 }
1118         else
1119                 {
1120                 buf[0]='\0';
1121                 fgets(buf,1024,stdin);
1122                 }
1123
1124         if (buf[0] == '\0') return(0);
1125         else if (buf[0] == '\n')
1126                 {
1127                 if ((def == NULL) || (def[0] == '\0'))
1128                         return(1);
1129                 strcpy(buf,def);
1130                 strcat(buf,"\n");
1131                 }
1132         else if ((buf[0] == '.') && (buf[1] == '\n')) return(1);
1133
1134         i=strlen(buf);
1135         if (buf[i-1] != '\n')
1136                 {
1137                 BIO_printf(bio_err,"weird input :-(\n");
1138                 return(0);
1139                 }
1140         buf[--i]='\0';
1141
1142         /* add object plus value */
1143         if ((xa=X509_ATTRIBUTE_new()) == NULL)
1144                 goto err;
1145         if ((xa->value.set=sk_ASN1_TYPE_new_null()) == NULL)
1146                 goto err;
1147         xa->set=1;
1148
1149         if (xa->object != NULL) ASN1_OBJECT_free(xa->object);
1150         xa->object=OBJ_nid2obj(nid);
1151
1152         if ((bs=ASN1_BIT_STRING_new()) == NULL) goto err;
1153
1154         bs->type=ASN1_PRINTABLE_type((unsigned char *)buf,-1);
1155
1156         z=req_fix_data(nid,&bs->type,i,min,max);
1157         if (z == 0)
1158                 {
1159                 if (value == NULL)
1160                         goto start;
1161                 else    goto err;
1162                 }
1163
1164         if (!ASN1_STRING_set(bs,(unsigned char *)buf,i))
1165                 { BIO_printf(bio_err,"Malloc failure\n"); goto err; }
1166
1167         if ((at=ASN1_TYPE_new()) == NULL)
1168                 { BIO_printf(bio_err,"Malloc failure\n"); goto err; }
1169
1170         ASN1_TYPE_set(at,bs->type,(char *)bs);
1171         sk_ASN1_TYPE_push(xa->value.set,at);
1172         bs=NULL;
1173         at=NULL;
1174         /* only one item per attribute */
1175
1176         if (!sk_X509_ATTRIBUTE_push(n,xa)) goto err;
1177         return(1);
1178 err:
1179         if (xa != NULL) X509_ATTRIBUTE_free(xa);
1180         if (at != NULL) ASN1_TYPE_free(at);
1181         if (bs != NULL) ASN1_BIT_STRING_free(bs);
1182         return(0);
1183         }
1184
1185 static void MS_CALLBACK req_cb(int p, int n, void *arg)
1186         {
1187         char c='*';
1188
1189         if (p == 0) c='.';
1190         if (p == 1) c='+';
1191         if (p == 2) c='*';
1192         if (p == 3) c='\n';
1193         BIO_write((BIO *)arg,&c,1);
1194         (void)BIO_flush((BIO *)arg);
1195 #ifdef LINT
1196         p=n;
1197 #endif
1198         }
1199
1200 static int req_fix_data(int nid, int *type, int len, int min, int max)
1201         {
1202         if(type) {
1203                 if (nid == NID_pkcs9_emailAddress)
1204                         *type=V_ASN1_IA5STRING;
1205                 if ((nid == NID_commonName) && (*type == V_ASN1_IA5STRING))
1206                         *type=V_ASN1_T61STRING;
1207                 if ((nid == NID_pkcs9_challengePassword) &&
1208                         (*type == V_ASN1_IA5STRING))
1209                         *type=V_ASN1_T61STRING;
1210
1211                 if ((nid == NID_pkcs9_unstructuredName) &&
1212                         (*type == V_ASN1_T61STRING))
1213                         {
1214                         BIO_printf(bio_err,"invalid characters in string, please re-enter the string\n");
1215                         return(0);
1216                         }
1217                 if (nid == NID_pkcs9_unstructuredName)
1218                         *type=V_ASN1_IA5STRING;
1219         }
1220         if (len < min)
1221                 {
1222                 BIO_printf(bio_err,"string is too short, it needs to be at least %d bytes long\n",min);
1223                 return(0);
1224                 }
1225         if ((max != 0) && (len > max))
1226                 {
1227                 BIO_printf(bio_err,"string is too long, it needs to be less than  %d bytes long\n",max);
1228                 return(0);
1229                 }
1230         return(1);
1231         }
1232
1233 /* Check if the end of a string matches 'end' */
1234 static int check_end(char *str, char *end)
1235 {
1236         int elen, slen;
1237         char *tmp;
1238         elen = strlen(end);
1239         slen = strlen(str);
1240         if(elen > slen) return 1;
1241         tmp = str + slen - elen;
1242         return strcmp(tmp, end);
1243 }
1244
1245 static int add_oid_section(LHASH *conf)
1246 {
1247         char *p;
1248         STACK_OF(CONF_VALUE) *sktmp;
1249         CONF_VALUE *cnf;
1250         int i;
1251         if(!(p=CONF_get_string(conf,NULL,"oid_section"))) return 1;
1252         if(!(sktmp = CONF_get_section(conf, p))) {
1253                 BIO_printf(bio_err, "problem loading oid section %s\n", p);
1254                 return 0;
1255         }
1256         for(i = 0; i < sk_CONF_VALUE_num(sktmp); i++) {
1257                 cnf = sk_CONF_VALUE_value(sktmp, i);
1258                 if(OBJ_create(cnf->value, cnf->name, cnf->name) == NID_undef) {
1259                         BIO_printf(bio_err, "problem creating object %s=%s\n",
1260                                                          cnf->name, cnf->value);
1261                         return 0;
1262                 }
1263         }
1264         return 1;
1265 }