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 PROMPT          "prompt"
  82 #define DISTINGUISHED_NAME      "distinguished_name"
  83 #define ATTRIBUTES      "attributes"
  84 #define V3_EXTENSIONS   "x509_extensions"
  85 #define REQ_EXTENSIONS  "req_extensions"
  86 #define STRING_MASK     "string_mask"
  87
  88 #define DEFAULT_KEY_LENGTH      512
  89 #define MIN_KEY_LENGTH          384
  90
  91 #undef PROG
  92 #define PROG    req_main
  93
  94 /* -inform arg  - input format - default PEM (DER or PEM)
  95  * -outform arg - output format - default PEM
  96  * -in arg      - input file - default stdin
  97  * -out arg     - output file - default stdout
  98  * -verify      - check request signature
  99  * -noout       - don't print stuff out.
 100  * -text        - print out human readable text.
 101  * -nodes       - no des encryption
 102  * -config file - Load configuration file.
 103  * -key file    - make a request using key in file (or use it for verification).
 104  * -keyform     - key file format.
 105  * -newkey      - make a key and a request.
 106  * -modulus     - print RSA modulus.
 107  * -x509        - output a self signed X509 structure instead.
 108  * -asn1-kludge - output new certificate request in a format that some CA's
 109  *                require.  This format is wrong
 110  */
 111
 112 static int make_REQ(X509_REQ *req,EVP_PKEY *pkey,int attribs);
 113 static int prompt_info(X509_REQ *req,
 114                 STACK_OF(CONF_VALUE) *dn_sk, char *dn_sect,
 115                 STACK_OF(CONF_VALUE) *attr_sk, char *attr_sect, int attribs);
 116 static int auto_info(X509_REQ *req, STACK_OF(CONF_VALUE) *sk,
 117                                 STACK_OF(CONF_VALUE) *attr, int attribs);
 118 static int add_attribute_object(X509_REQ *req, char *text,
 119                                 char *def, char *value, int nid, int min,
 120                                 int max);
 121 static int add_DN_object(X509_NAME *n, char *text, char *def, char *value,
 122         int nid,int min,int max);
 123 #ifndef NO_RSA
 124 static void MS_CALLBACK req_cb(int p,int n,void *arg);
 125 #endif
 126 static int req_check_len(int len,int min,int max);
 127 static int check_end(char *str, char *end);
 128 static int add_oid_section(LHASH *conf);
 129 #ifndef MONOLITH
 130 static char *default_config_file=NULL;
 131 static LHASH *config=NULL;
 132 #endif
 133 static LHASH *req_conf=NULL;
 134
 135 #define TYPE_RSA        1
 136 #define TYPE_DSA        2
 137 #define TYPE_DH         3
 138
 139 int MAIN(int, char **);
 140
 141 int MAIN(int argc, char **argv)
 142         {
 143 #ifndef NO_DSA
 144         DSA *dsa_params=NULL;
 145 #endif
 146         int ex=1,x509=0,days=30;
 147         X509 *x509ss=NULL;
 148         X509_REQ *req=NULL;
 149         EVP_PKEY *pkey=NULL;
 150         int i,badops=0,newreq=0,newkey= -1,pkey_type=0;
 151         BIO *in=NULL,*out=NULL;
 152         int informat,outformat,verify=0,noout=0,text=0,keyform=FORMAT_PEM;
 153         int nodes=0,kludge=0,newhdr=0;
 154         char *infile,*outfile,*prog,*keyfile=NULL,*template=NULL,*keyout=NULL;
 155         char *extensions = NULL;
 156         char *req_exts = NULL;
 157         EVP_CIPHER *cipher=NULL;
 158         int modulus=0;
 159         char *passargin = NULL, *passargout = NULL;
 160         char *passin = NULL, *passout = NULL;
 161         char *p;
 162         const EVP_MD *md_alg=NULL,*digest=EVP_md5();
 163 #ifndef MONOLITH
 164         MS_STATIC char config_name[256];
 165 #endif
 166
 167         req_conf = NULL;
 168 #ifndef NO_DES
 169         cipher=EVP_des_ede3_cbc();
 170 #endif
 171         apps_startup();
 172
 173         if (bio_err == NULL)
 174                 if ((bio_err=BIO_new(BIO_s_file())) != NULL)
 175                         BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);
 176
 177         infile=NULL;
 178         outfile=NULL;
 179         informat=FORMAT_PEM;
 180         outformat=FORMAT_PEM;
 181
 182         prog=argv[0];
 183         argc--;
 184         argv++;
 185         while (argc >= 1)
 186                 {
 187                 if      (strcmp(*argv,"-inform") == 0)
 188                         {
 189                         if (--argc < 1) goto bad;
 190                         informat=str2fmt(*(++argv));
 191                         }
 192                 else if (strcmp(*argv,"-outform") == 0)
 193                         {
 194                         if (--argc < 1) goto bad;
 195                         outformat=str2fmt(*(++argv));
 196                         }
 197                 else if (strcmp(*argv,"-key") == 0)
 198                         {
 199                         if (--argc < 1) goto bad;
 200                         keyfile= *(++argv);
 201                         }
 202                 else if (strcmp(*argv,"-new") == 0)
 203                         {
 204                         pkey_type=TYPE_RSA;
 205                         newreq=1;
 206                         }
 207                 else if (strcmp(*argv,"-config") == 0)
 208                         {
 209                         if (--argc < 1) goto bad;
 210                         template= *(++argv);
 211                         }
 212                 else if (strcmp(*argv,"-keyform") == 0)
 213                         {
 214                         if (--argc < 1) goto bad;
 215                         keyform=str2fmt(*(++argv));
 216                         }
 217                 else if (strcmp(*argv,"-in") == 0)
 218                         {
 219                         if (--argc < 1) goto bad;
 220                         infile= *(++argv);
 221                         }
 222                 else if (strcmp(*argv,"-out") == 0)
 223                         {
 224                         if (--argc < 1) goto bad;
 225                         outfile= *(++argv);
 226                         }
 227                 else if (strcmp(*argv,"-keyout") == 0)
 228                         {
 229                         if (--argc < 1) goto bad;
 230                         keyout= *(++argv);
 231                         }
 232                 else if (strcmp(*argv,"-passin") == 0)
 233                         {
 234                         if (--argc < 1) goto bad;
 235                         passargin= *(++argv);
 236                         }
 237                 else if (strcmp(*argv,"-passout") == 0)
 238                         {
 239                         if (--argc < 1) goto bad;
 240                         passargout= *(++argv);
 241                         }
 242                 else if (strcmp(*argv,"-newkey") == 0)
 243                         {
 244                         int is_numeric;
 245
 246                         if (--argc < 1) goto bad;
 247                         p= *(++argv);
 248                         is_numeric = p[0] >= '0' && p[0] <= '9';
 249                         if (strncmp("rsa:",p,4) == 0 || is_numeric)
 250                                 {
 251                                 pkey_type=TYPE_RSA;
 252                                 if(!is_numeric)
 253                                     p+=4;
 254                                 newkey= atoi(p);
 255                                 }
 256                         else
 257 #ifndef NO_DSA
 258                                 if (strncmp("dsa:",p,4) == 0)
 259                                 {
 260                                 X509 *xtmp=NULL;
 261                                 EVP_PKEY *dtmp;
 262
 263                                 pkey_type=TYPE_DSA;
 264                                 p+=4;
 265                                 if ((in=BIO_new_file(p,"r")) == NULL)
 266                                         {
 267                                         perror(p);
 268                                         goto end;
 269                                         }
 270                                 if ((dsa_params=PEM_read_bio_DSAparams(in,NULL,NULL,NULL)) == NULL)
 271                                         {
 272                                         ERR_clear_error();
 273                                         (void)BIO_reset(in);
 274                                         if ((xtmp=PEM_read_bio_X509(in,NULL,NULL,NULL)) == NULL)
 275                                                 {
 276                                                 BIO_printf(bio_err,"unable to load DSA parameters from file\n");
 277                                                 goto end;
 278                                                 }
 279
 280                                         dtmp=X509_get_pubkey(xtmp);
 281                                         if (dtmp->type == EVP_PKEY_DSA)
 282                                                 dsa_params=DSAparams_dup(dtmp->pkey.dsa);
 283                                         EVP_PKEY_free(dtmp);
 284                                         X509_free(xtmp);
 285                                         if (dsa_params == NULL)
 286                                                 {
 287                                                 BIO_printf(bio_err,"Certificate does not contain DSA parameters\n");
 288                                                 goto end;
 289                                                 }
 290                                         }
 291                                 BIO_free(in);
 292                                 newkey=BN_num_bits(dsa_params->p);
 293                                 in=NULL;
 294                                 }
 295                         else
 296 #endif
 297 #ifndef NO_DH
 298                                 if (strncmp("dh:",p,4) == 0)
 299                                 {
 300                                 pkey_type=TYPE_DH;
 301                                 p+=3;
 302                                 }
 303                         else
 304 #endif
 305                                 pkey_type=TYPE_RSA;
 306
 307                         newreq=1;
 308                         }
 309                 else if (strcmp(*argv,"-newhdr") == 0)
 310                         newhdr=1;
 311                 else if (strcmp(*argv,"-modulus") == 0)
 312                         modulus=1;
 313                 else if (strcmp(*argv,"-verify") == 0)
 314                         verify=1;
 315                 else if (strcmp(*argv,"-nodes") == 0)
 316                         nodes=1;
 317                 else if (strcmp(*argv,"-noout") == 0)
 318                         noout=1;
 319                 else if (strcmp(*argv,"-text") == 0)
 320                         text=1;
 321                 else if (strcmp(*argv,"-x509") == 0)
 322                         x509=1;
 323                 else if (strcmp(*argv,"-asn1-kludge") == 0)
 324                         kludge=1;
 325                 else if (strcmp(*argv,"-no-asn1-kludge") == 0)
 326                         kludge=0;
 327                 else if (strcmp(*argv,"-days") == 0)
 328                         {
 329                         if (--argc < 1) goto bad;
 330                         days= atoi(*(++argv));
 331                         if (days == 0) days=30;
 332                         }
 333                 else if ((md_alg=EVP_get_digestbyname(&((*argv)[1]))) != NULL)
 334                         {
 335                         /* ok */
 336                         digest=md_alg;
 337                         }
 338                 else if (strcmp(*argv,"-extensions") == 0)
 339                         {
 340                         if (--argc < 1) goto bad;
 341                         extensions = *(++argv);
 342                         }
 343                 else if (strcmp(*argv,"-reqexts") == 0)
 344                         {
 345                         if (--argc < 1) goto bad;
 346                         req_exts = *(++argv);
 347                         }
 348                 else
 349                         {
 350                         BIO_printf(bio_err,"unknown option %s\n",*argv);
 351                         badops=1;
 352                         break;
 353                         }
 354                 argc--;
 355                 argv++;
 356                 }
 357
 358         if (badops)
 359                 {
 360 bad:
 361                 BIO_printf(bio_err,"%s [options] <infile >outfile\n",prog);
 362                 BIO_printf(bio_err,"where options  are\n");
 363                 BIO_printf(bio_err," -inform arg    input format - DER or PEM\n");
 364                 BIO_printf(bio_err," -outform arg   output format - DER or PEM\n");
 365                 BIO_printf(bio_err," -in arg        input file\n");
 366                 BIO_printf(bio_err," -out arg       output file\n");
 367                 BIO_printf(bio_err," -text          text form of request\n");
 368                 BIO_printf(bio_err," -noout         do not output REQ\n");
 369                 BIO_printf(bio_err," -verify        verify signature on REQ\n");
 370                 BIO_printf(bio_err," -modulus       RSA modulus\n");
 371                 BIO_printf(bio_err," -nodes         don't encrypt the output key\n");
 372                 BIO_printf(bio_err," -key file  use the private key contained in file\n");
 373                 BIO_printf(bio_err," -keyform arg   key file format\n");
 374                 BIO_printf(bio_err," -keyout arg    file to send the key to\n");
 375                 BIO_printf(bio_err," -newkey rsa:bits generate a new RSA key of 'bits' in size\n");
 376                 BIO_printf(bio_err," -newkey dsa:file generate a new DSA key, parameters taken from CA in 'file'\n");
 377
 378                 BIO_printf(bio_err," -[digest]      Digest to sign with (md5, sha1, md2, mdc2)\n");
 379                 BIO_printf(bio_err," -config file   request template file.\n");
 380                 BIO_printf(bio_err," -new           new request.\n");
 381                 BIO_printf(bio_err," -x509          output a x509 structure instead of a cert. req.\n");
 382                 BIO_printf(bio_err," -days          number of days a x509 generated by -x509 is valid for.\n");
 383                 BIO_printf(bio_err," -newhdr        output \"NEW\" in the header lines\n");
 384                 BIO_printf(bio_err," -asn1-kludge   Output the 'request' in a format that is wrong but some CA's\n");
 385                 BIO_printf(bio_err,"                have been reported as requiring\n");
 386                 BIO_printf(bio_err," -extensions .. specify certificate extension section (override value in config file)\n");
 387                 BIO_printf(bio_err," -reqexts ..    specify request extension section (override value in config file)\n");
 388                 goto end;
 389                 }
 390
 391         ERR_load_crypto_strings();
 392         if(!app_passwd(bio_err, passargin, passargout, &passin, &passout)) {
 393                 BIO_printf(bio_err, "Error getting passwords\n");
 394                 goto end;
 395         }
 396
 397 #ifndef MONOLITH /* else this has happened in openssl.c (global `config') */
 398         /* Lets load up our environment a little */
 399         p=getenv("OPENSSL_CONF");
 400         if (p == NULL)
 401                 p=getenv("SSLEAY_CONF");
 402         if (p == NULL)
 403                 {
 404                 strcpy(config_name,X509_get_default_cert_area());
 405 #ifndef VMS
 406                 strcat(config_name,"/");
 407 #endif
 408                 strcat(config_name,OPENSSL_CONF);
 409                 p=config_name;
 410                 }
 411         default_config_file=p;
 412         config=CONF_load(config,p,NULL);
 413 #endif
 414
 415         if (template != NULL)
 416                 {
 417                 long errline;
 418
 419                 BIO_printf(bio_err,"Using configuration from %s\n",template);
 420                 req_conf=CONF_load(NULL,template,&errline);
 421                 if (req_conf == NULL)
 422                         {
 423                         BIO_printf(bio_err,"error on line %ld of %s\n",errline,template);
 424                         goto end;
 425                         }
 426                 }
 427         else
 428                 {
 429                 req_conf=config;
 430                 BIO_printf(bio_err,"Using configuration from %s\n",
 431                         default_config_file);
 432                 if (req_conf == NULL)
 433                         {
 434                         BIO_printf(bio_err,"Unable to load config info\n");
 435                         }
 436                 }
 437
 438         if (req_conf != NULL)
 439                 {
 440                 p=CONF_get_string(req_conf,NULL,"oid_file");
 441                 if (p != NULL)
 442                         {
 443                         BIO *oid_bio;
 444
 445                         oid_bio=BIO_new_file(p,"r");
 446                         if (oid_bio == NULL)
 447                                 {
 448                                 /*
 449                                 BIO_printf(bio_err,"problems opening %s for extra oid's\n",p);
 450                                 ERR_print_errors(bio_err);
 451                                 */
 452                                 }
 453                         else
 454                                 {
 455                                 OBJ_create_objects(oid_bio);
 456                                 BIO_free(oid_bio);
 457                                 }
 458                         }
 459                 }
 460                 if(!add_oid_section(req_conf)) goto end;
 461
 462         if ((md_alg == NULL) &&
 463                 ((p=CONF_get_string(req_conf,SECTION,"default_md")) != NULL))
 464                 {
 465                 if ((md_alg=EVP_get_digestbyname(p)) != NULL)
 466                         digest=md_alg;
 467                 }
 468
 469         if(!extensions)
 470                 extensions = CONF_get_string(req_conf, SECTION, V3_EXTENSIONS);
 471         if(extensions) {
 472                 /* Check syntax of file */
 473                 X509V3_CTX ctx;
 474                 X509V3_set_ctx_test(&ctx);
 475                 X509V3_set_conf_lhash(&ctx, req_conf);
 476                 if(!X509V3_EXT_add_conf(req_conf, &ctx, extensions, NULL)) {
 477                         BIO_printf(bio_err,
 478                          "Error Loading extension section %s\n", extensions);
 479                         goto end;
 480                 }
 481         }
 482
 483         if(!passin)
 484                 passin = CONF_get_string(req_conf, SECTION, "input_password");
 485
 486         if(!passout)
 487                 passout = CONF_get_string(req_conf, SECTION, "output_password");
 488
 489         p = CONF_get_string(req_conf, SECTION, STRING_MASK);
 490
 491         if(p && !ASN1_STRING_set_default_mask_asc(p)) {
 492                 BIO_printf(bio_err, "Invalid global string mask setting %s\n", p);
 493                 goto end;
 494         }
 495
 496         if(!req_exts)
 497                 req_exts = CONF_get_string(req_conf, SECTION, REQ_EXTENSIONS);
 498         if(req_exts) {
 499                 /* Check syntax of file */
 500                 X509V3_CTX ctx;
 501                 X509V3_set_ctx_test(&ctx);
 502                 X509V3_set_conf_lhash(&ctx, req_conf);
 503                 if(!X509V3_EXT_add_conf(req_conf, &ctx, req_exts, NULL)) {
 504                         BIO_printf(bio_err,
 505                          "Error Loading request extension section %s\n",
 506                                                                 req_exts);
 507                         goto end;
 508                 }
 509         }
 510
 511         in=BIO_new(BIO_s_file());
 512         out=BIO_new(BIO_s_file());
 513         if ((in == NULL) || (out == NULL))
 514                 goto end;
 515
 516         if (keyfile != NULL)
 517                 {
 518                 if (BIO_read_filename(in,keyfile) <= 0)
 519                         {
 520                         perror(keyfile);
 521                         goto end;
 522                         }
 523
 524                 if (keyform == FORMAT_ASN1)
 525                         pkey=d2i_PrivateKey_bio(in,NULL);
 526                 else if (keyform == FORMAT_PEM)
 527                         {
 528                         pkey=PEM_read_bio_PrivateKey(in,NULL,NULL,passin);
 529                         }
 530                 else
 531                         {
 532                         BIO_printf(bio_err,"bad input format specified for X509 request\n");
 533                         goto end;
 534                         }
 535
 536                 if (pkey == NULL)
 537                         {
 538                         BIO_printf(bio_err,"unable to load Private key\n");
 539                         goto end;
 540                         }
 541                 }
 542
 543         if (newreq && (pkey == NULL))
 544                 {
 545                 char *randfile = CONF_get_string(req_conf,SECTION,"RANDFILE");
 546                 app_RAND_load_file(randfile, bio_err, 0);
 547
 548                 if (newkey <= 0)
 549                         {
 550                         newkey=(int)CONF_get_number(req_conf,SECTION,BITS);
 551                         if (newkey <= 0)
 552                                 newkey=DEFAULT_KEY_LENGTH;
 553                         }
 554
 555                 if (newkey < MIN_KEY_LENGTH)
 556                         {
 557                         BIO_printf(bio_err,"private key length is too short,\n");
 558                         BIO_printf(bio_err,"it needs to be at least %d bits, not %d\n",MIN_KEY_LENGTH,newkey);
 559                         goto end;
 560                         }
 561                 BIO_printf(bio_err,"Generating a %d bit %s private key\n",
 562                         newkey,(pkey_type == TYPE_RSA)?"RSA":"DSA");
 563
 564                 if ((pkey=EVP_PKEY_new()) == NULL) goto end;
 565
 566 #ifndef NO_RSA
 567                 if (pkey_type == TYPE_RSA)
 568                         {
 569                         if (!EVP_PKEY_assign_RSA(pkey,
 570                                 RSA_generate_key(newkey,0x10001,
 571                                         req_cb,bio_err)))
 572                                 goto end;
 573                         }
 574                 else
 575 #endif
 576 #ifndef NO_DSA
 577                         if (pkey_type == TYPE_DSA)
 578                         {
 579                         if (!DSA_generate_key(dsa_params)) goto end;
 580                         if (!EVP_PKEY_assign_DSA(pkey,dsa_params)) goto end;
 581                         dsa_params=NULL;
 582                         }
 583 #endif
 584
 585                 app_RAND_write_file(randfile, bio_err);
 586
 587                 if (pkey == NULL) goto end;
 588
 589                 if (keyout == NULL)
 590                         keyout=CONF_get_string(req_conf,SECTION,KEYFILE);
 591
 592                 if (keyout == NULL)
 593                         {
 594                         BIO_printf(bio_err,"writing new private key to stdout\n");
 595                         BIO_set_fp(out,stdout,BIO_NOCLOSE);
 596                         }
 597                 else
 598                         {
 599                         BIO_printf(bio_err,"writing new private key to '%s'\n",keyout);
 600                         if (BIO_write_filename(out,keyout) <= 0)
 601                                 {
 602                                 perror(keyout);
 603                                 goto end;
 604                                 }
 605                         }
 606
 607                 p=CONF_get_string(req_conf,SECTION,"encrypt_rsa_key");
 608                 if (p == NULL)
 609                         p=CONF_get_string(req_conf,SECTION,"encrypt_key");
 610                 if ((p != NULL) && (strcmp(p,"no") == 0))
 611                         cipher=NULL;
 612                 if (nodes) cipher=NULL;
 613
 614                 i=0;
 615 loop:
 616                 if (!PEM_write_bio_PrivateKey(out,pkey,cipher,
 617                         NULL,0,NULL,passout))
 618                         {
 619                         if ((ERR_GET_REASON(ERR_peek_error()) ==
 620                                 PEM_R_PROBLEMS_GETTING_PASSWORD) && (i < 3))
 621                                 {
 622                                 ERR_clear_error();
 623                                 i++;
 624                                 goto loop;
 625                                 }
 626                         goto end;
 627                         }
 628                 BIO_printf(bio_err,"-----\n");
 629                 }
 630
 631         if (!newreq)
 632                 {
 633                 /* Since we are using a pre-existing certificate
 634                  * request, the kludge 'format' info should not be
 635                  * changed. */
 636                 kludge= -1;
 637                 if (infile == NULL)
 638                         BIO_set_fp(in,stdin,BIO_NOCLOSE);
 639                 else
 640                         {
 641                         if (BIO_read_filename(in,infile) <= 0)
 642                                 {
 643                                 perror(infile);
 644                                 goto end;
 645                                 }
 646                         }
 647
 648                 if      (informat == FORMAT_ASN1)
 649                         req=d2i_X509_REQ_bio(in,NULL);
 650                 else if (informat == FORMAT_PEM)
 651                         req=PEM_read_bio_X509_REQ(in,NULL,NULL,NULL);
 652                 else
 653                         {
 654                         BIO_printf(bio_err,"bad input format specified for X509 request\n");
 655                         goto end;
 656                         }
 657                 if (req == NULL)
 658                         {
 659                         BIO_printf(bio_err,"unable to load X509 request\n");
 660                         goto end;
 661                         }
 662                 }
 663
 664         if (newreq || x509)
 665                 {
 666 #ifndef NO_DSA
 667                 if (pkey->type == EVP_PKEY_DSA)
 668                         digest=EVP_dss1();
 669 #endif
 670
 671                 if (pkey == NULL)
 672                         {
 673                         BIO_printf(bio_err,"you need to specify a private key\n");
 674                         goto end;
 675                         }
 676                 if (req == NULL)
 677                         {
 678                         req=X509_REQ_new();
 679                         if (req == NULL)
 680                                 {
 681                                 goto end;
 682                                 }
 683
 684                         i=make_REQ(req,pkey,!x509);
 685                         if (kludge >= 0)
 686                                 req->req_info->req_kludge=kludge;
 687                         if (!i)
 688                                 {
 689                                 BIO_printf(bio_err,"problems making Certificate Request\n");
 690                                 goto end;
 691                                 }
 692                         }
 693                 if (x509)
 694                         {
 695                         EVP_PKEY *tmppkey;
 696                         X509V3_CTX ext_ctx;
 697                         if ((x509ss=X509_new()) == NULL) goto end;
 698
 699                         /* Set version to V3 */
 700                         if(!X509_set_version(x509ss, 2)) goto end;
 701                         ASN1_INTEGER_set(X509_get_serialNumber(x509ss),0L);
 702
 703                         X509_set_issuer_name(x509ss,
 704                                 X509_REQ_get_subject_name(req));
 705                         X509_gmtime_adj(X509_get_notBefore(x509ss),0);
 706                         X509_gmtime_adj(X509_get_notAfter(x509ss),
 707                                 (long)60*60*24*days);
 708                         X509_set_subject_name(x509ss,
 709                                 X509_REQ_get_subject_name(req));
 710                         tmppkey = X509_REQ_get_pubkey(req);
 711                         X509_set_pubkey(x509ss,tmppkey);
 712                         EVP_PKEY_free(tmppkey);
 713
 714                         /* Set up V3 context struct */
 715
 716                         X509V3_set_ctx(&ext_ctx, x509ss, x509ss, NULL, NULL, 0);
 717                         X509V3_set_conf_lhash(&ext_ctx, req_conf);
 718
 719                         /* Add extensions */
 720                         if(extensions && !X509V3_EXT_add_conf(req_conf,
 721                                         &ext_ctx, extensions, x509ss))
 722                             {
 723                             BIO_printf(bio_err,
 724                                        "Error Loading extension section %s\n",
 725                                        extensions);
 726                             goto end;
 727                             }
 728
 729                         if (!(i=X509_sign(x509ss,pkey,digest)))
 730                                 goto end;
 731                         }
 732                 else
 733                         {
 734                         X509V3_CTX ext_ctx;
 735
 736                         /* Set up V3 context struct */
 737
 738                         X509V3_set_ctx(&ext_ctx, NULL, NULL, req, NULL, 0);
 739                         X509V3_set_conf_lhash(&ext_ctx, req_conf);
 740
 741                         /* Add extensions */
 742                         if(req_exts && !X509V3_EXT_REQ_add_conf(req_conf,
 743                                         &ext_ctx, req_exts, req))
 744                             {
 745                             BIO_printf(bio_err,
 746                                        "Error Loading extension section %s\n",
 747                                        req_exts);
 748                             goto end;
 749                             }
 750                         if (!(i=X509_REQ_sign(req,pkey,digest)))
 751                                 goto end;
 752                         }
 753                 }
 754
 755         if (verify && !x509)
 756                 {
 757                 int tmp=0;
 758
 759                 if (pkey == NULL)
 760                         {
 761                         pkey=X509_REQ_get_pubkey(req);
 762                         tmp=1;
 763                         if (pkey == NULL) goto end;
 764                         }
 765
 766                 i=X509_REQ_verify(req,pkey);
 767                 if (tmp) {
 768                         EVP_PKEY_free(pkey);
 769                         pkey=NULL;
 770                 }
 771
 772                 if (i < 0)
 773                         {
 774                         goto end;
 775                         }
 776                 else if (i == 0)
 777                         {
 778                         BIO_printf(bio_err,"verify failure\n");
 779                         }
 780                 else /* if (i > 0) */
 781                         BIO_printf(bio_err,"verify OK\n");
 782                 }
 783
 784         if (noout && !text && !modulus)
 785                 {
 786                 ex=0;
 787                 goto end;
 788                 }
 789
 790         if (outfile == NULL)
 791                 BIO_set_fp(out,stdout,BIO_NOCLOSE);
 792         else
 793                 {
 794                 if ((keyout != NULL) && (strcmp(outfile,keyout) == 0))
 795                         i=(int)BIO_append_filename(out,outfile);
 796                 else
 797                         i=(int)BIO_write_filename(out,outfile);
 798                 if (!i)
 799                         {
 800                         perror(outfile);
 801                         goto end;
 802                         }
 803                 }
 804
 805         if (text)
 806                 {
 807                 if (x509)
 808                         X509_print(out,x509ss);
 809                 else
 810                         X509_REQ_print(out,req);
 811                 }
 812
 813         if (modulus)
 814                 {
 815                 EVP_PKEY *pubkey;
 816
 817                 if (x509)
 818                         pubkey=X509_get_pubkey(x509ss);
 819                 else
 820                         pubkey=X509_REQ_get_pubkey(req);
 821                 if (pubkey == NULL)
 822                         {
 823                         fprintf(stdout,"Modulus=unavailable\n");
 824                         goto end;
 825                         }
 826                 fprintf(stdout,"Modulus=");
 827 #ifndef NO_RSA
 828                 if (pubkey->type == EVP_PKEY_RSA)
 829                         BN_print(out,pubkey->pkey.rsa->n);
 830                 else
 831 #endif
 832                         fprintf(stdout,"Wrong Algorithm type");
 833                 fprintf(stdout,"\n");
 834                 }
 835
 836         if (!noout && !x509)
 837                 {
 838                 if      (outformat == FORMAT_ASN1)
 839                         i=i2d_X509_REQ_bio(out,req);
 840                 else if (outformat == FORMAT_PEM) {
 841                         if(newhdr) i=PEM_write_bio_X509_REQ_NEW(out,req);
 842                         else i=PEM_write_bio_X509_REQ(out,req);
 843                 } else {
 844                         BIO_printf(bio_err,"bad output format specified for outfile\n");
 845                         goto end;
 846                         }
 847                 if (!i)
 848                         {
 849                         BIO_printf(bio_err,"unable to write X509 request\n");
 850                         goto end;
 851                         }
 852                 }
 853         if (!noout && x509 && (x509ss != NULL))
 854                 {
 855                 if      (outformat == FORMAT_ASN1)
 856                         i=i2d_X509_bio(out,x509ss);
 857                 else if (outformat == FORMAT_PEM)
 858                         i=PEM_write_bio_X509(out,x509ss);
 859                 else    {
 860                         BIO_printf(bio_err,"bad output format specified for outfile\n");
 861                         goto end;
 862                         }
 863                 if (!i)
 864                         {
 865                         BIO_printf(bio_err,"unable to write X509 certificate\n");
 866                         goto end;
 867                         }
 868                 }
 869         ex=0;
 870 end:
 871         if (ex)
 872                 {
 873                 ERR_print_errors(bio_err);
 874                 }
 875         if ((req_conf != NULL) && (req_conf != config)) CONF_free(req_conf);
 876         BIO_free(in);
 877         BIO_free(out);
 878         EVP_PKEY_free(pkey);
 879         X509_REQ_free(req);
 880         X509_free(x509ss);
 881         if(passin) Free(passin);
 882         if(passout) Free(passout);
 883         OBJ_cleanup();
 884 #ifndef NO_DSA
 885         if (dsa_params != NULL) DSA_free(dsa_params);
 886 #endif
 887         EXIT(ex);
 888         }
 889
 890 static int make_REQ(X509_REQ *req, EVP_PKEY *pkey, int attribs)
 891         {
 892         int ret=0,i;
 893         char no_prompt = 0;
 894         STACK_OF(CONF_VALUE) *dn_sk, *attr_sk = NULL;
 895         char *tmp, *dn_sect,*attr_sect;
 896
 897         tmp=CONF_get_string(req_conf,SECTION,PROMPT);
 898         if((tmp != NULL) && !strcmp(tmp, "no")) no_prompt = 1;
 899
 900         dn_sect=CONF_get_string(req_conf,SECTION,DISTINGUISHED_NAME);
 901         if (dn_sect == NULL)
 902                 {
 903                 BIO_printf(bio_err,"unable to find '%s' in config\n",
 904                         DISTINGUISHED_NAME);
 905                 goto err;
 906                 }
 907         dn_sk=CONF_get_section(req_conf,dn_sect);
 908         if (dn_sk == NULL)
 909                 {
 910                 BIO_printf(bio_err,"unable to get '%s' section\n",dn_sect);
 911                 goto err;
 912                 }
 913
 914         attr_sect=CONF_get_string(req_conf,SECTION,ATTRIBUTES);
 915         if (attr_sect == NULL)
 916                 attr_sk=NULL;
 917         else
 918                 {
 919                 attr_sk=CONF_get_section(req_conf,attr_sect);
 920                 if (attr_sk == NULL)
 921                         {
 922                         BIO_printf(bio_err,"unable to get '%s' section\n",attr_sect);
 923                         goto err;
 924                         }
 925                 }
 926
 927         /* setup version number */
 928         if (!X509_REQ_set_version(req,0L)) goto err; /* version 1 */
 929
 930         if(no_prompt) i = auto_info(req, dn_sk, attr_sk, attribs);
 931         else i = prompt_info(req, dn_sk, dn_sect, attr_sk, attr_sect, attribs);
 932         if(!i) goto err;
 933
 934         X509_REQ_set_pubkey(req,pkey);
 935
 936         ret=1;
 937 err:
 938         return(ret);
 939         }
 940
 941
 942 static int prompt_info(X509_REQ *req,
 943                 STACK_OF(CONF_VALUE) *dn_sk, char *dn_sect,
 944                 STACK_OF(CONF_VALUE) *attr_sk, char *attr_sect, int attribs)
 945         {
 946         int i;
 947         char *p,*q;
 948         char buf[100];
 949         int nid,min,max;
 950         char *type,*def,*value;
 951         CONF_VALUE *v;
 952         X509_NAME *subj;
 953         subj = X509_REQ_get_subject_name(req);
 954         BIO_printf(bio_err,"You are about to be asked to enter information that will be incorporated\n");
 955         BIO_printf(bio_err,"into your certificate request.\n");
 956         BIO_printf(bio_err,"What you are about to enter is what is called a Distinguished Name or a DN.\n");
 957         BIO_printf(bio_err,"There are quite a few fields but you can leave some blank\n");
 958         BIO_printf(bio_err,"For some fields there will be a default value,\n");
 959         BIO_printf(bio_err,"If you enter '.', the field will be left blank.\n");
 960         BIO_printf(bio_err,"-----\n");
 961
 962
 963         if (sk_CONF_VALUE_num(dn_sk))
 964                 {
 965                 i= -1;
 966 start:          for (;;)
 967                         {
 968                         i++;
 969                         if (sk_CONF_VALUE_num(dn_sk) <= i) break;
 970
 971                         v=sk_CONF_VALUE_value(dn_sk,i);
 972                         p=q=NULL;
 973                         type=v->name;
 974                         if(!check_end(type,"_min") || !check_end(type,"_max") ||
 975                                 !check_end(type,"_default") ||
 976                                          !check_end(type,"_value")) continue;
 977                         /* Skip past any leading X. X: X, etc to allow for
 978                          * multiple instances
 979                          */
 980                         for(p = v->name; *p ; p++)
 981                                 if ((*p == ':') || (*p == ',') ||
 982                                                          (*p == '.')) {
 983                                         p++;
 984                                         if(*p) type = p;
 985                                         break;
 986                                 }
 987                         /* If OBJ not recognised ignore it */
 988                         if ((nid=OBJ_txt2nid(type)) == NID_undef) goto start;
 989                         sprintf(buf,"%s_default",v->name);
 990                         if ((def=CONF_get_string(req_conf,dn_sect,buf)) == NULL)
 991                                 def="";
 992
 993                         sprintf(buf,"%s_value",v->name);
 994                         if ((value=CONF_get_string(req_conf,dn_sect,buf)) == NULL)
 995                                 value=NULL;
 996
 997                         sprintf(buf,"%s_min",v->name);
 998                         min=(int)CONF_get_number(req_conf,dn_sect,buf);
 999
1000                         sprintf(buf,"%s_max",v->name);
1001                         max=(int)CONF_get_number(req_conf,dn_sect,buf);
1002
1003                         if (!add_DN_object(subj,v->value,def,value,nid,
1004                                 min,max))
1005                                 return 0;
1006                         }
1007                 if (X509_NAME_entry_count(subj) == 0)
1008                         {
1009                         BIO_printf(bio_err,"error, no objects specified in config file\n");
1010                         return 0;
1011                         }
1012
1013                 if (attribs)
1014                         {
1015                         if ((attr_sk != NULL) && (sk_CONF_VALUE_num(attr_sk) > 0))
1016                                 {
1017                                 BIO_printf(bio_err,"\nPlease enter the following 'extra' attributes\n");
1018                                 BIO_printf(bio_err,"to be sent with your certificate request\n");
1019                                 }
1020
1021                         i= -1;
1022 start2:                 for (;;)
1023                                 {
1024                                 i++;
1025                                 if ((attr_sk == NULL) ||
1026                                             (sk_CONF_VALUE_num(attr_sk) <= i))
1027                                         break;
1028
1029                                 v=sk_CONF_VALUE_value(attr_sk,i);
1030                                 type=v->name;
1031                                 if ((nid=OBJ_txt2nid(type)) == NID_undef)
1032                                         goto start2;
1033
1034                                 sprintf(buf,"%s_default",type);
1035                                 if ((def=CONF_get_string(req_conf,attr_sect,buf))
1036                                         == NULL)
1037                                         def="";
1038
1039                                 sprintf(buf,"%s_value",type);
1040                                 if ((value=CONF_get_string(req_conf,attr_sect,buf))
1041                                         == NULL)
1042                                         value=NULL;
1043
1044                                 sprintf(buf,"%s_min",type);
1045                                 min=(int)CONF_get_number(req_conf,attr_sect,buf);
1046
1047                                 sprintf(buf,"%s_max",type);
1048                                 max=(int)CONF_get_number(req_conf,attr_sect,buf);
1049
1050                                 if (!add_attribute_object(req,
1051                                         v->value,def,value,nid,min,max))
1052                                         return 0;
1053                                 }
1054                         }
1055                 }
1056         else
1057                 {
1058                 BIO_printf(bio_err,"No template, please set one up.\n");
1059                 return 0;
1060                 }
1061
1062         return 1;
1063
1064         }
1065
1066 static int auto_info(X509_REQ *req, STACK_OF(CONF_VALUE) *dn_sk,
1067                         STACK_OF(CONF_VALUE) *attr_sk, int attribs)
1068         {
1069         int i;
1070         char *p,*q;
1071         char *type;
1072         CONF_VALUE *v;
1073         X509_NAME *subj;
1074
1075         subj = X509_REQ_get_subject_name(req);
1076
1077         for (i = 0; i < sk_CONF_VALUE_num(dn_sk); i++)
1078                 {
1079                 v=sk_CONF_VALUE_value(dn_sk,i);
1080                 p=q=NULL;
1081                 type=v->name;
1082                 /* Skip past any leading X. X: X, etc to allow for
1083                  * multiple instances
1084                  */
1085                 for(p = v->name; *p ; p++)
1086                         if ((*p == ':') || (*p == ',') || (*p == '.')) {
1087                                 p++;
1088                                 if(*p) type = p;
1089                                 break;
1090                         }
1091                 if (!X509_NAME_add_entry_by_txt(subj,type, MBSTRING_ASC,
1092                                 (unsigned char *) v->value,-1,-1,0)) return 0;
1093
1094                 }
1095
1096                 if (!X509_NAME_entry_count(subj))
1097                         {
1098                         BIO_printf(bio_err,"error, no objects specified in config file\n");
1099                         return 0;
1100                         }
1101                 if (attribs)
1102                         {
1103                         for (i = 0; i < sk_CONF_VALUE_num(attr_sk); i++)
1104                                 {
1105                                 v=sk_CONF_VALUE_value(attr_sk,i);
1106                                 if(!X509_REQ_add1_attr_by_txt(req, v->name, MBSTRING_ASC,
1107                                         (unsigned char *)v->value, -1)) return 0;
1108                                 }
1109                         }
1110         return 1;
1111         }
1112
1113
1114 static int add_DN_object(X509_NAME *n, char *text, char *def, char *value,
1115              int nid, int min, int max)
1116         {
1117         int i,ret=0;
1118         MS_STATIC char buf[1024];
1119 start:
1120         BIO_printf(bio_err,"%s [%s]:",text,def);
1121         (void)BIO_flush(bio_err);
1122         if (value != NULL)
1123                 {
1124                 strcpy(buf,value);
1125                 strcat(buf,"\n");
1126                 BIO_printf(bio_err,"%s\n",value);
1127                 }
1128         else
1129                 {
1130                 buf[0]='\0';
1131                 fgets(buf,1024,stdin);
1132                 }
1133
1134         if (buf[0] == '\0') return(0);
1135         else if (buf[0] == '\n')
1136                 {
1137                 if ((def == NULL) || (def[0] == '\0'))
1138                         return(1);
1139                 strcpy(buf,def);
1140                 strcat(buf,"\n");
1141                 }
1142         else if ((buf[0] == '.') && (buf[1] == '\n')) return(1);
1143
1144         i=strlen(buf);
1145         if (buf[i-1] != '\n')
1146                 {
1147                 BIO_printf(bio_err,"weird input :-(\n");
1148                 return(0);
1149                 }
1150         buf[--i]='\0';
1151
1152 #ifdef CHARSET_EBCDIC
1153         ebcdic2ascii(buf, buf, i);
1154 #endif
1155         if(!req_check_len(i, min, max)) goto start;
1156         if (!X509_NAME_add_entry_by_NID(n,nid, MBSTRING_ASC,
1157                                 (unsigned char *) buf, -1,-1,0)) goto err;
1158         ret=1;
1159 err:
1160         return(ret);
1161         }
1162
1163 static int add_attribute_object(X509_REQ *req, char *text,
1164                                 char *def, char *value, int nid, int min,
1165                                 int max)
1166         {
1167         int i;
1168         static char buf[1024];
1169
1170 start:
1171         BIO_printf(bio_err,"%s [%s]:",text,def);
1172         (void)BIO_flush(bio_err);
1173         if (value != NULL)
1174                 {
1175                 strcpy(buf,value);
1176                 strcat(buf,"\n");
1177                 BIO_printf(bio_err,"%s\n",value);
1178                 }
1179         else
1180                 {
1181                 buf[0]='\0';
1182                 fgets(buf,1024,stdin);
1183                 }
1184
1185         if (buf[0] == '\0') return(0);
1186         else if (buf[0] == '\n')
1187                 {
1188                 if ((def == NULL) || (def[0] == '\0'))
1189                         return(1);
1190                 strcpy(buf,def);
1191                 strcat(buf,"\n");
1192                 }
1193         else if ((buf[0] == '.') && (buf[1] == '\n')) return(1);
1194
1195         i=strlen(buf);
1196         if (buf[i-1] != '\n')
1197                 {
1198                 BIO_printf(bio_err,"weird input :-(\n");
1199                 return(0);
1200                 }
1201         buf[--i]='\0';
1202         if(!req_check_len(i, min, max)) goto start;
1203
1204         if(!X509_REQ_add1_attr_by_NID(req, nid, MBSTRING_ASC,
1205                                         (unsigned char *)buf, -1)) {
1206                 BIO_printf(bio_err, "Error adding attribute\n");
1207                 ERR_print_errors(bio_err);
1208                 goto err;
1209         }
1210
1211         return(1);
1212 err:
1213         return(0);
1214         }
1215
1216 #ifndef NO_RSA
1217 static void MS_CALLBACK req_cb(int p, int n, void *arg)
1218         {
1219         char c='*';
1220
1221         if (p == 0) c='.';
1222         if (p == 1) c='+';
1223         if (p == 2) c='*';
1224         if (p == 3) c='\n';
1225         BIO_write((BIO *)arg,&c,1);
1226         (void)BIO_flush((BIO *)arg);
1227 #ifdef LINT
1228         p=n;
1229 #endif
1230         }
1231 #endif
1232
1233 static int req_check_len(int len, int min, int max)
1234         {
1235         if (len < min)
1236                 {
1237                 BIO_printf(bio_err,"string is too short, it needs to be at least %d bytes long\n",min);
1238                 return(0);
1239                 }
1240         if ((max != 0) && (len > max))
1241                 {
1242                 BIO_printf(bio_err,"string is too long, it needs to be less than  %d bytes long\n",max);
1243                 return(0);
1244                 }
1245         return(1);
1246         }
1247
1248 /* Check if the end of a string matches 'end' */
1249 static int check_end(char *str, char *end)
1250 {
1251         int elen, slen;
1252         char *tmp;
1253         elen = strlen(end);
1254         slen = strlen(str);
1255         if(elen > slen) return 1;
1256         tmp = str + slen - elen;
1257         return strcmp(tmp, end);
1258 }
1259
1260 static int add_oid_section(LHASH *conf)
1261 {
1262         char *p;
1263         STACK_OF(CONF_VALUE) *sktmp;
1264         CONF_VALUE *cnf;
1265         int i;
1266         if(!(p=CONF_get_string(conf,NULL,"oid_section"))) return 1;
1267         if(!(sktmp = CONF_get_section(conf, p))) {
1268                 BIO_printf(bio_err, "problem loading oid section %s\n", p);
1269                 return 0;
1270         }
1271         for(i = 0; i < sk_CONF_VALUE_num(sktmp); i++) {
1272                 cnf = sk_CONF_VALUE_value(sktmp, i);
1273                 if(OBJ_create(cnf->value, cnf->name, cnf->name) == NID_undef) {
1274                         BIO_printf(bio_err, "problem creating object %s=%s\n",
1275                                                          cnf->name, cnf->value);
1276                         return 0;
1277                 }
1278         }
1279         return 1;
1280 }