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