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 "bio.h"
  68 #include "evp.h"
  69 #include "rand.h"
  70 #include "conf.h"
  71 #include "err.h"
  72 #include "asn1.h"
  73 #include "x509.h"
  74 #include "x509v3.h"
  75 #include "objects.h"
  76 #include "pem.h"
  77
  78 #define SECTION         "req"
  79
  80 #define BITS            "default_bits"
  81 #define KEYFILE         "default_keyfile"
  82 #define DISTINGUISHED_NAME      "distinguished_name"
  83 #define ATTRIBUTES      "attributes"
  84 #define V3_EXTENSIONS   "x509_extensions"
  85
  86 #define DEFAULT_KEY_LENGTH      512
  87 #define MIN_KEY_LENGTH          384
  88
  89 #undef PROG
  90 #define PROG    req_main
  91
  92 /* -inform arg  - input format - default PEM (one of DER, TXT or PEM)
  93  * -outform arg - output format - default PEM
  94  * -in arg      - input file - default stdin
  95  * -out arg     - output file - default stdout
  96  * -verify      - check request signature
  97  * -noout       - don't print stuff out.
  98  * -text        - print out human readable text.
  99  * -nodes       - no des encryption
 100  * -config file - Load configuration file.
 101  * -key file    - make a request using key in file (or use it for verification).
 102  * -keyform     - key file format.
 103  * -newkey      - make a key and a request.
 104  * -modulus     - print RSA modulus.
 105  * -x509        - output a self signed X509 structure instead.
 106  * -asn1-kludge - output new certificate request in a format that some CA's
 107  *                require.  This format is wrong
 108  */
 109
 110 #ifndef NOPROTO
 111 static int make_REQ(X509_REQ *req,EVP_PKEY *pkey,int attribs);
 112 static int add_attribute_object(STACK *n, char *text, char *def,
 113         char *value, int nid,int min,int max);
 114 static int add_DN_object(X509_NAME *n, char *text, char *def, char *value,
 115         int nid,int min,int max);
 116 static void MS_CALLBACK req_cb(int p,int n,char *arg);
 117 static int req_fix_data(int nid,int *type,int len,int min,int max);
 118 static int check_end(char *str, char *end);
 119 static int add_oid_section(LHASH *conf);
 120 #else
 121 static int make_REQ();
 122 static int add_attribute_object();
 123 static int add_DN_object();
 124 static void MS_CALLBACK req_cb();
 125 static int req_fix_data();
 126 static int check_end();
 127 static int add_oid_section();
 128 #endif
 129
 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 argc, char **argv)
 141         {
 142 #ifndef NO_DSA
 143         DSA *dsa_params=NULL;
 144 #endif
 145         int ex=1,x509=0,days=30;
 146         X509 *x509ss=NULL;
 147         X509_REQ *req=NULL;
 148         EVP_PKEY *pkey=NULL;
 149         int i,badops=0,newreq=0,newkey= -1,pkey_type=0;
 150         BIO *in=NULL,*out=NULL;
 151         int informat,outformat,verify=0,noout=0,text=0,keyform=FORMAT_PEM;
 152         int nodes=0,kludge=0;
 153         char *infile,*outfile,*prog,*keyfile=NULL,*template=NULL,*keyout=NULL;
 154         char *extensions = NULL;
 155         EVP_CIPHER *cipher=NULL;
 156         int modulus=0;
 157         char *p;
 158         const EVP_MD *md_alg=NULL,*digest=EVP_md5();
 159 #ifndef MONOLITH
 160         MS_STATIC char config_name[256];
 161 #endif
 162
 163 #ifndef NO_DES
 164         cipher=EVP_des_ede3_cbc();
 165 #endif
 166         apps_startup();
 167
 168         if (bio_err == NULL)
 169                 if ((bio_err=BIO_new(BIO_s_file())) != NULL)
 170                         BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);
 171
 172         infile=NULL;
 173         outfile=NULL;
 174         informat=FORMAT_PEM;
 175         outformat=FORMAT_PEM;
 176
 177         prog=argv[0];
 178         argc--;
 179         argv++;
 180         while (argc >= 1)
 181                 {
 182                 if      (strcmp(*argv,"-inform") == 0)
 183                         {
 184                         if (--argc < 1) goto bad;
 185                         informat=str2fmt(*(++argv));
 186                         }
 187                 else if (strcmp(*argv,"-outform") == 0)
 188                         {
 189                         if (--argc < 1) goto bad;
 190                         outformat=str2fmt(*(++argv));
 191                         }
 192                 else if (strcmp(*argv,"-key") == 0)
 193                         {
 194                         if (--argc < 1) goto bad;
 195                         keyfile= *(++argv);
 196                         }
 197                 else if (strcmp(*argv,"-new") == 0)
 198                         {
 199                         pkey_type=TYPE_RSA;
 200                         newreq=1;
 201                         }
 202                 else if (strcmp(*argv,"-config") == 0)
 203                         {
 204                         if (--argc < 1) goto bad;
 205                         template= *(++argv);
 206                         }
 207                 else if (strcmp(*argv,"-keyform") == 0)
 208                         {
 209                         if (--argc < 1) goto bad;
 210                         keyform=str2fmt(*(++argv));
 211                         }
 212                 else if (strcmp(*argv,"-in") == 0)
 213                         {
 214                         if (--argc < 1) goto bad;
 215                         infile= *(++argv);
 216                         }
 217                 else if (strcmp(*argv,"-out") == 0)
 218                         {
 219                         if (--argc < 1) goto bad;
 220                         outfile= *(++argv);
 221                         }
 222                 else if (strcmp(*argv,"-keyout") == 0)
 223                         {
 224                         if (--argc < 1) goto bad;
 225                         keyout= *(++argv);
 226                         }
 227                 else if (strcmp(*argv,"-newkey") == 0)
 228                         {
 229                         int is_numeric;
 230
 231                         if (--argc < 1) goto bad;
 232                         p= *(++argv);
 233                         is_numeric = p[0] >= '0' && p[0] <= '9';
 234                         if (strncmp("rsa:",p,4) == 0 || is_numeric)
 235                                 {
 236                                 pkey_type=TYPE_RSA;
 237                                 if(!is_numeric)
 238                                     p+=4;
 239                                 newkey= atoi(p);
 240                                 }
 241                         else
 242 #ifndef NO_DSA
 243                                 if (strncmp("dsa:",p,4) == 0)
 244                                 {
 245                                 X509 *xtmp=NULL;
 246                                 EVP_PKEY *dtmp;
 247
 248                                 pkey_type=TYPE_DSA;
 249                                 p+=4;
 250                                 if ((in=BIO_new_file(p,"r")) == NULL)
 251                                         {
 252                                         perror(p);
 253                                         goto end;
 254                                         }
 255                                 if ((dsa_params=PEM_read_bio_DSAparams(in,NULL,NULL)) == NULL)
 256                                         {
 257                                         ERR_clear_error();
 258                                         BIO_reset(in);
 259                                         if ((xtmp=PEM_read_bio_X509(in,NULL,NULL)) == NULL)
 260                                                 {
 261                                                 BIO_printf(bio_err,"unable to load DSA parameters from file\n");
 262                                                 goto end;
 263                                                 }
 264
 265                                         dtmp=X509_get_pubkey(xtmp);
 266                                         if (dtmp->type == EVP_PKEY_DSA)
 267                                                 dsa_params=DSAparams_dup(dtmp->pkey.dsa);
 268                                         EVP_PKEY_free(dtmp);
 269                                         X509_free(xtmp);
 270                                         if (dsa_params == NULL)
 271                                                 {
 272                                                 BIO_printf(bio_err,"Certificate does not contain DSA parameters\n");
 273                                                 goto end;
 274                                                 }
 275                                         }
 276                                 BIO_free(in);
 277                                 newkey=BN_num_bits(dsa_params->p);
 278                                 in=NULL;
 279                                 }
 280                         else
 281 #endif
 282 #ifndef NO_DH
 283                                 if (strncmp("dh:",p,4) == 0)
 284                                 {
 285                                 pkey_type=TYPE_DH;
 286                                 p+=3;
 287                                 }
 288                         else
 289 #endif
 290                                 pkey_type=TYPE_RSA;
 291
 292                         newreq=1;
 293                         }
 294                 else if (strcmp(*argv,"-modulus") == 0)
 295                         modulus=1;
 296                 else if (strcmp(*argv,"-verify") == 0)
 297                         verify=1;
 298                 else if (strcmp(*argv,"-nodes") == 0)
 299                         nodes=1;
 300                 else if (strcmp(*argv,"-noout") == 0)
 301                         noout=1;
 302                 else if (strcmp(*argv,"-text") == 0)
 303                         text=1;
 304                 else if (strcmp(*argv,"-x509") == 0)
 305                         x509=1;
 306                 else if (strcmp(*argv,"-asn1-kludge") == 0)
 307                         kludge=1;
 308                 else if (strcmp(*argv,"-no-asn1-kludge") == 0)
 309                         kludge=0;
 310                 else if (strcmp(*argv,"-days") == 0)
 311                         {
 312                         if (--argc < 1) goto bad;
 313                         days= atoi(*(++argv));
 314                         if (days == 0) days=30;
 315                         }
 316                 else if ((md_alg=EVP_get_digestbyname(&((*argv)[1]))) != NULL)
 317                         {
 318                         /* ok */
 319                         digest=md_alg;
 320                         }
 321                 else
 322
 323                         {
 324                         BIO_printf(bio_err,"unknown option %s\n",*argv);
 325                         badops=1;
 326                         break;
 327                         }
 328                 argc--;
 329                 argv++;
 330                 }
 331
 332         if (badops)
 333                 {
 334 bad:
 335                 BIO_printf(bio_err,"%s [options] <infile >outfile\n",prog);
 336                 BIO_printf(bio_err,"where options  are\n");
 337                 BIO_printf(bio_err," -inform arg    input format - one of DER TXT PEM\n");
 338                 BIO_printf(bio_err," -outform arg   output format - one of DER TXT PEM\n");
 339                 BIO_printf(bio_err," -in arg        input file\n");
 340                 BIO_printf(bio_err," -out arg       output file\n");
 341                 BIO_printf(bio_err," -text          text form of request\n");
 342                 BIO_printf(bio_err," -noout         do not output REQ\n");
 343                 BIO_printf(bio_err," -verify        verify signature on REQ\n");
 344                 BIO_printf(bio_err," -modulus       RSA modulus\n");
 345                 BIO_printf(bio_err," -nodes         don't encrypt the output key\n");
 346                 BIO_printf(bio_err," -key file  use the private key contained in file\n");
 347                 BIO_printf(bio_err," -keyform arg   key file format\n");
 348                 BIO_printf(bio_err," -keyout arg    file to send the key to\n");
 349                 BIO_printf(bio_err," -newkey rsa:bits generate a new RSA key of 'bits' in size\n");
 350                 BIO_printf(bio_err," -newkey dsa:file generate a new DSA key, parameters taken from CA in 'file'\n");
 351
 352                 BIO_printf(bio_err," -[digest]      Digest to sign with (md5, sha1, md2, mdc2)\n");
 353                 BIO_printf(bio_err," -config file   request template file.\n");
 354                 BIO_printf(bio_err," -new           new request.\n");
 355                 BIO_printf(bio_err," -x509          output a x509 structure instead of a cert. req.\n");
 356                 BIO_printf(bio_err," -days          number of days a x509 generated by -x509 is valid for.\n");
 357                 BIO_printf(bio_err," -asn1-kludge   Output the 'request' in a format that is wrong but some CA's\n");
 358                 BIO_printf(bio_err,"                have been reported as requiring\n");
 359                 BIO_printf(bio_err,"                [ It is now always turned on but can be turned off with -no-asn1-kludge ]\n");
 360                 goto end;
 361                 }
 362
 363         ERR_load_crypto_strings();
 364         X509V3_add_standard_extensions();
 365
 366 #ifndef MONOLITH
 367         /* Lets load up our environment a little */
 368         p=getenv("OPENSSL_CONF");
 369         if (p == NULL)
 370                 p=getenv("SSLEAY_CONF");
 371         if (p == NULL)
 372                 {
 373                 strcpy(config_name,X509_get_default_cert_area());
 374                 strcat(config_name,"/lib/");
 375                 strcat(config_name,OPENSSL_CONF);
 376                 p=config_name;
 377                 }
 378         default_config_file=p;
 379         config=CONF_load(config,p,NULL);
 380 #endif
 381
 382         if (template != NULL)
 383                 {
 384                 long errline;
 385
 386                 BIO_printf(bio_err,"Using configuration from %s\n",template);
 387                 req_conf=CONF_load(NULL,template,&errline);
 388                 if (req_conf == NULL)
 389                         {
 390                         BIO_printf(bio_err,"error on line %ld of %s\n",errline,template);
 391                         goto end;
 392                         }
 393                 }
 394         else
 395                 {
 396                 req_conf=config;
 397                 BIO_printf(bio_err,"Using configuration from %s\n",
 398                         default_config_file);
 399                 if (req_conf == NULL)
 400                         {
 401                         BIO_printf(bio_err,"Unable to load config info\n");
 402                         }
 403                 }
 404
 405         if (req_conf != NULL)
 406                 {
 407                 p=CONF_get_string(req_conf,NULL,"oid_file");
 408                 if (p != NULL)
 409                         {
 410                         BIO *oid_bio;
 411
 412                         oid_bio=BIO_new_file(p,"r");
 413                         if (oid_bio == NULL)
 414                                 {
 415                                 /*
 416                                 BIO_printf(bio_err,"problems opening %s for extra oid's\n",p);
 417                                 ERR_print_errors(bio_err);
 418                                 */
 419                                 }
 420                         else
 421                                 {
 422                                 OBJ_create_objects(oid_bio);
 423                                 BIO_free(oid_bio);
 424                                 }
 425                         }
 426                 }
 427                 if(!add_oid_section(req_conf)) goto end;
 428
 429         if ((md_alg == NULL) &&
 430                 ((p=CONF_get_string(req_conf,SECTION,"default_md")) != NULL))
 431                 {
 432                 if ((md_alg=EVP_get_digestbyname(p)) != NULL)
 433                         digest=md_alg;
 434                 }
 435
 436         extensions = CONF_get_string(req_conf, SECTION, V3_EXTENSIONS);
 437         if(extensions) {
 438                 /* Check syntax of file */
 439                 X509V3_CTX ctx;
 440                 X509V3_set_ctx_test(&ctx);
 441                 X509V3_set_conf_lhash(&ctx, req_conf);
 442                 if(!X509V3_EXT_add_conf(req_conf, &ctx, extensions, NULL)) {
 443                         BIO_printf(bio_err,
 444                          "Error Loading extension section %s\n", extensions);
 445                         goto end;
 446                 }
 447         }
 448
 449         in=BIO_new(BIO_s_file());
 450         out=BIO_new(BIO_s_file());
 451         if ((in == NULL) || (out == NULL))
 452                 goto end;
 453
 454         if (keyfile != NULL)
 455                 {
 456                 if (BIO_read_filename(in,keyfile) <= 0)
 457                         {
 458                         perror(keyfile);
 459                         goto end;
 460                         }
 461
 462 /*              if (keyform == FORMAT_ASN1)
 463                         rsa=d2i_RSAPrivateKey_bio(in,NULL);
 464                 else */
 465                 if (keyform == FORMAT_PEM)
 466                         pkey=PEM_read_bio_PrivateKey(in,NULL,NULL);
 467                 else
 468                         {
 469                         BIO_printf(bio_err,"bad input format specified for X509 request\n");
 470                         goto end;
 471                         }
 472
 473                 if (pkey == NULL)
 474                         {
 475                         BIO_printf(bio_err,"unable to load Private key\n");
 476                         goto end;
 477                         }
 478                 }
 479
 480         if (newreq && (pkey == NULL))
 481                 {
 482                 char *randfile;
 483                 char buffer[200];
 484
 485                 if ((randfile=CONF_get_string(req_conf,SECTION,"RANDFILE")) == NULL)
 486                         randfile=RAND_file_name(buffer,200);
 487 #ifdef WINDOWS
 488                 BIO_printf(bio_err,"Loading 'screen' into random state -");
 489                 BIO_flush(bio_err);
 490                 RAND_screen();
 491                 BIO_printf(bio_err," done\n");
 492 #endif
 493                 if ((randfile == NULL) || !RAND_load_file(randfile,1024L*1024L))
 494                         {
 495                         BIO_printf(bio_err,"unable to load 'random state'\n");
 496                         BIO_printf(bio_err,"What this means is that the random number generator has not been seeded\n");
 497                         BIO_printf(bio_err,"with much random data.\n");
 498                         BIO_printf(bio_err,"Consider setting the RANDFILE environment variable to point at a file that\n");
 499                         BIO_printf(bio_err,"'random' data can be kept in.\n");
 500                         }
 501                 if (newkey <= 0)
 502                         {
 503                         newkey=(int)CONF_get_number(req_conf,SECTION,BITS);
 504                         if (newkey <= 0)
 505                                 newkey=DEFAULT_KEY_LENGTH;
 506                         }
 507
 508                 if (newkey < MIN_KEY_LENGTH)
 509                         {
 510                         BIO_printf(bio_err,"private key length is too short,\n");
 511                         BIO_printf(bio_err,"it needs to be at least %d bits, not %d\n",MIN_KEY_LENGTH,newkey);
 512                         goto end;
 513                         }
 514                 BIO_printf(bio_err,"Generating a %d bit %s private key\n",
 515                         newkey,(pkey_type == TYPE_RSA)?"RSA":"DSA");
 516
 517                 if ((pkey=EVP_PKEY_new()) == NULL) goto end;
 518
 519 #ifndef NO_RSA
 520                 if (pkey_type == TYPE_RSA)
 521                         {
 522                         if (!EVP_PKEY_assign_RSA(pkey,
 523                                 RSA_generate_key(newkey,0x10001,
 524                                         req_cb,(char *)bio_err)))
 525                                 goto end;
 526                         }
 527                 else
 528 #endif
 529 #ifndef NO_DSA
 530                         if (pkey_type == TYPE_DSA)
 531                         {
 532                         if (!DSA_generate_key(dsa_params)) goto end;
 533                         if (!EVP_PKEY_assign_DSA(pkey,dsa_params)) goto end;
 534                         dsa_params=NULL;
 535                         }
 536 #endif
 537
 538                 if ((randfile == NULL) || (RAND_write_file(randfile) == 0))
 539                         BIO_printf(bio_err,"unable to write 'random state'\n");
 540
 541                 if (pkey == NULL) goto end;
 542
 543                 if (keyout == NULL)
 544                         keyout=CONF_get_string(req_conf,SECTION,KEYFILE);
 545
 546                 if (keyout == NULL)
 547                         {
 548                         BIO_printf(bio_err,"writing new private key to stdout\n");
 549                         BIO_set_fp(out,stdout,BIO_NOCLOSE);
 550                         }
 551                 else
 552                         {
 553                         BIO_printf(bio_err,"writing new private key to '%s'\n",keyout);
 554                         if (BIO_write_filename(out,keyout) <= 0)
 555                                 {
 556                                 perror(keyout);
 557                                 goto end;
 558                                 }
 559                         }
 560
 561                 p=CONF_get_string(req_conf,SECTION,"encrypt_rsa_key");
 562                 if (p == NULL)
 563                         p=CONF_get_string(req_conf,SECTION,"encrypt_key");
 564                 if ((p != NULL) && (strcmp(p,"no") == 0))
 565                         cipher=NULL;
 566                 if (nodes) cipher=NULL;
 567
 568                 i=0;
 569 loop:
 570                 if (!PEM_write_bio_PrivateKey(out,pkey,cipher,
 571                         NULL,0,NULL))
 572                         {
 573                         if ((ERR_GET_REASON(ERR_peek_error()) ==
 574                                 PEM_R_PROBLEMS_GETTING_PASSWORD) && (i < 3))
 575                                 {
 576                                 ERR_clear_error();
 577                                 i++;
 578                                 goto loop;
 579                                 }
 580                         goto end;
 581                         }
 582                 BIO_printf(bio_err,"-----\n");
 583                 }
 584
 585         if (!newreq)
 586                 {
 587                 /* Since we are using a pre-existing certificate
 588                  * request, the kludge 'format' info should not be
 589                  * changed. */
 590                 kludge= -1;
 591                 if (infile == NULL)
 592                         BIO_set_fp(in,stdin,BIO_NOCLOSE);
 593                 else
 594                         {
 595                         if (BIO_read_filename(in,infile) <= 0)
 596                                 {
 597                                 perror(infile);
 598                                 goto end;
 599                                 }
 600                         }
 601
 602                 if      (informat == FORMAT_ASN1)
 603                         req=d2i_X509_REQ_bio(in,NULL);
 604                 else if (informat == FORMAT_PEM)
 605                         req=PEM_read_bio_X509_REQ(in,NULL,NULL);
 606                 else
 607                         {
 608                         BIO_printf(bio_err,"bad input format specified for X509 request\n");
 609                         goto end;
 610                         }
 611                 if (req == NULL)
 612                         {
 613                         BIO_printf(bio_err,"unable to load X509 request\n");
 614                         goto end;
 615                         }
 616                 }
 617
 618         if (newreq || x509)
 619                 {
 620 #ifndef NO_DSA
 621                 if (pkey->type == EVP_PKEY_DSA)
 622                         digest=EVP_dss1();
 623 #endif
 624
 625                 if (pkey == NULL)
 626                         {
 627                         BIO_printf(bio_err,"you need to specify a private key\n");
 628                         goto end;
 629                         }
 630                 if (req == NULL)
 631                         {
 632                         req=X509_REQ_new();
 633                         if (req == NULL)
 634                                 {
 635                                 goto end;
 636                                 }
 637
 638                         i=make_REQ(req,pkey,!x509);
 639                         if (kludge >= 0)
 640                                 req->req_info->req_kludge=kludge;
 641                         if (!i)
 642                                 {
 643                                 BIO_printf(bio_err,"problems making Certificate Request\n");
 644                                 goto end;
 645                                 }
 646                         }
 647                 if (x509)
 648                         {
 649                         EVP_PKEY *tmppkey;
 650                         X509V3_CTX ext_ctx;
 651                         if ((x509ss=X509_new()) == NULL) goto end;
 652
 653                         /* Set version to V3 */
 654                         if(!X509_set_version(x509ss, 2)) goto end;
 655                         ASN1_INTEGER_set(X509_get_serialNumber(x509ss),0L);
 656
 657                         X509_set_issuer_name(x509ss,
 658                                 X509_REQ_get_subject_name(req));
 659                         X509_gmtime_adj(X509_get_notBefore(x509ss),0);
 660                         X509_gmtime_adj(X509_get_notAfter(x509ss),
 661                                 (long)60*60*24*days);
 662                         X509_set_subject_name(x509ss,
 663                                 X509_REQ_get_subject_name(req));
 664                         tmppkey = X509_REQ_get_pubkey(req);
 665                         X509_set_pubkey(x509ss,tmppkey);
 666                         EVP_PKEY_free(tmppkey);
 667
 668                         /* Set up V3 context struct */
 669
 670                         X509V3_set_ctx(&ext_ctx, x509ss, x509ss, NULL, NULL, 0);
 671                         X509V3_set_conf_lhash(&ext_ctx, req_conf);
 672
 673                         /* Add extensions */
 674                         if(extensions && !X509V3_EXT_add_conf(req_conf,
 675                                         &ext_ctx, extensions, x509ss))
 676                             {
 677                             BIO_printf(bio_err,
 678                                        "Error Loading extension section %s\n",
 679                                        extensions);
 680                             goto end;
 681                             }
 682
 683                         if (!(i=X509_sign(x509ss,pkey,digest)))
 684                                 goto end;
 685                         }
 686                 else
 687                         {
 688                         if (!(i=X509_REQ_sign(req,pkey,digest)))
 689                                 goto end;
 690                         }
 691                 }
 692
 693         if (verify && !x509)
 694                 {
 695                 int tmp=0;
 696
 697                 if (pkey == NULL)
 698                         {
 699                         pkey=X509_REQ_get_pubkey(req);
 700                         tmp=1;
 701                         if (pkey == NULL) goto end;
 702                         }
 703
 704                 i=X509_REQ_verify(req,pkey);
 705                 if (tmp) {
 706                         EVP_PKEY_free(pkey);
 707                         pkey=NULL;
 708                 }
 709
 710                 if (i < 0)
 711                         {
 712                         goto end;
 713                         }
 714                 else if (i == 0)
 715                         {
 716                         BIO_printf(bio_err,"verify failure\n");
 717                         }
 718                 else /* if (i > 0) */
 719                         BIO_printf(bio_err,"verify OK\n");
 720                 }
 721
 722         if (noout && !text && !modulus)
 723                 {
 724                 ex=0;
 725                 goto end;
 726                 }
 727
 728         if (outfile == NULL)
 729                 BIO_set_fp(out,stdout,BIO_NOCLOSE);
 730         else
 731                 {
 732                 if ((keyout != NULL) && (strcmp(outfile,keyout) == 0))
 733                         i=(int)BIO_append_filename(out,outfile);
 734                 else
 735                         i=(int)BIO_write_filename(out,outfile);
 736                 if (!i)
 737                         {
 738                         perror(outfile);
 739                         goto end;
 740                         }
 741                 }
 742
 743         if (text)
 744                 {
 745                 if (x509)
 746                         X509_print(out,x509ss);
 747                 else
 748                         X509_REQ_print(out,req);
 749                 }
 750
 751         if (modulus)
 752                 {
 753                 EVP_PKEY *pubkey;
 754
 755                 if (x509)
 756                         pubkey=X509_get_pubkey(x509ss);
 757                 else
 758                         pubkey=X509_REQ_get_pubkey(req);
 759                 if (pubkey == NULL)
 760                         {
 761                         fprintf(stdout,"Modulus=unavailable\n");
 762                         goto end;
 763                         }
 764                 fprintf(stdout,"Modulus=");
 765 #ifndef NO_RSA
 766                 if (pubkey->type == EVP_PKEY_RSA)
 767                         BN_print(out,pubkey->pkey.rsa->n);
 768                 else
 769 #endif
 770                         fprintf(stdout,"Wrong Algorithm type");
 771                 fprintf(stdout,"\n");
 772                 }
 773
 774         if (!noout && !x509)
 775                 {
 776                 if      (outformat == FORMAT_ASN1)
 777                         i=i2d_X509_REQ_bio(out,req);
 778                 else if (outformat == FORMAT_PEM)
 779                         i=PEM_write_bio_X509_REQ(out,req);
 780                 else    {
 781                         BIO_printf(bio_err,"bad output format specified for outfile\n");
 782                         goto end;
 783                         }
 784                 if (!i)
 785                         {
 786                         BIO_printf(bio_err,"unable to write X509 request\n");
 787                         goto end;
 788                         }
 789                 }
 790         if (!noout && x509 && (x509ss != NULL))
 791                 {
 792                 if      (outformat == FORMAT_ASN1)
 793                         i=i2d_X509_bio(out,x509ss);
 794                 else if (outformat == FORMAT_PEM)
 795                         i=PEM_write_bio_X509(out,x509ss);
 796                 else    {
 797                         BIO_printf(bio_err,"bad output format specified for outfile\n");
 798                         goto end;
 799                         }
 800                 if (!i)
 801                         {
 802                         BIO_printf(bio_err,"unable to write X509 certificate\n");
 803                         goto end;
 804                         }
 805                 }
 806         ex=0;
 807 end:
 808         if (ex)
 809                 {
 810                 ERR_print_errors(bio_err);
 811                 }
 812         if ((req_conf != NULL) && (req_conf != config)) CONF_free(req_conf);
 813         BIO_free(in);
 814         BIO_free(out);
 815         EVP_PKEY_free(pkey);
 816         X509_REQ_free(req);
 817         X509_free(x509ss);
 818         X509V3_EXT_cleanup();
 819         OBJ_cleanup();
 820 #ifndef NO_DSA
 821         if (dsa_params != NULL) DSA_free(dsa_params);
 822 #endif
 823         EXIT(ex);
 824         }
 825
 826 static int make_REQ(X509_REQ *req, EVP_PKEY *pkey, int attribs)
 827         {
 828         int ret=0,i;
 829         unsigned char *p,*q;
 830         X509_REQ_INFO *ri;
 831         char buf[100];
 832         int nid,min,max;
 833         char *type,*def,*tmp,*value,*tmp_attr;
 834         STACK *sk,*attr=NULL;
 835         CONF_VALUE *v;
 836
 837         tmp=CONF_get_string(req_conf,SECTION,DISTINGUISHED_NAME);
 838         if (tmp == NULL)
 839                 {
 840                 BIO_printf(bio_err,"unable to find '%s' in config\n",
 841                         DISTINGUISHED_NAME);
 842                 goto err;
 843                 }
 844         sk=CONF_get_section(req_conf,tmp);
 845         if (sk == NULL)
 846                 {
 847                 BIO_printf(bio_err,"unable to get '%s' section\n",tmp);
 848                 goto err;
 849                 }
 850
 851         tmp_attr=CONF_get_string(req_conf,SECTION,ATTRIBUTES);
 852         if (tmp_attr == NULL)
 853                 attr=NULL;
 854         else
 855                 {
 856                 attr=CONF_get_section(req_conf,tmp_attr);
 857                 if (attr == NULL)
 858                         {
 859                         BIO_printf(bio_err,"unable to get '%s' section\n",tmp_attr);
 860                         goto err;
 861                         }
 862                 }
 863
 864         ri=req->req_info;
 865
 866         BIO_printf(bio_err,"You are about to be asked to enter information that will be incorporated\n");
 867         BIO_printf(bio_err,"into your certificate request.\n");
 868         BIO_printf(bio_err,"What you are about to enter is what is called a Distinguished Name or a DN.\n");
 869         BIO_printf(bio_err,"There are quite a few fields but you can leave some blank\n");
 870         BIO_printf(bio_err,"For some fields there will be a default value,\n");
 871         BIO_printf(bio_err,"If you enter '.', the field will be left blank.\n");
 872         BIO_printf(bio_err,"-----\n");
 873
 874         /* setup version number */
 875         if (!ASN1_INTEGER_set(ri->version,0L)) goto err; /* version 1 */
 876
 877         if (sk_num(sk))
 878                 {
 879                 i= -1;
 880 start:          for (;;)
 881                         {
 882                         i++;
 883                         if ((int)sk_num(sk) <= i) break;
 884
 885                         v=(CONF_VALUE *)sk_value(sk,i);
 886                         p=q=NULL;
 887                         type=v->name;
 888                         if(!check_end(type,"_min") || !check_end(type,"_max") ||
 889                                 !check_end(type,"_default") ||
 890                                          !check_end(type,"_value")) continue;
 891                         /* Skip past any leading X. X: X, etc to allow for
 892                          * multiple instances
 893                          */
 894                         for(p = v->name; *p ; p++)
 895                                 if ((*p == ':') || (*p == ',') ||
 896                                                          (*p == '.')) {
 897                                         p++;
 898                                         if(*p) type = p;
 899                                         break;
 900                                 }
 901                         /* If OBJ not recognised ignore it */
 902                         if ((nid=OBJ_txt2nid(type)) == NID_undef) goto start;
 903                         sprintf(buf,"%s_default",v->name);
 904                         if ((def=CONF_get_string(req_conf,tmp,buf)) == NULL)
 905                                 def="";
 906
 907                         sprintf(buf,"%s_value",v->name);
 908                         if ((value=CONF_get_string(req_conf,tmp,buf)) == NULL)
 909                                 value=NULL;
 910
 911                         sprintf(buf,"%s_min",v->name);
 912                         min=(int)CONF_get_number(req_conf,tmp,buf);
 913
 914                         sprintf(buf,"%s_max",v->name);
 915                         max=(int)CONF_get_number(req_conf,tmp,buf);
 916
 917                         if (!add_DN_object(ri->subject,v->value,def,value,nid,
 918                                 min,max))
 919                                 goto err;
 920                         }
 921                 if (sk_num(ri->subject->entries) == 0)
 922                         {
 923                         BIO_printf(bio_err,"error, no objects specified in config file\n");
 924                         goto err;
 925                         }
 926
 927                 if (attribs)
 928                         {
 929                         if ((attr != NULL) && (sk_num(attr) > 0))
 930                                 {
 931                                 BIO_printf(bio_err,"\nPlease enter the following 'extra' attributes\n");
 932                                 BIO_printf(bio_err,"to be sent with your certificate request\n");
 933                                 }
 934
 935                         i= -1;
 936 start2:                 for (;;)
 937                                 {
 938                                 i++;
 939                                 if ((attr == NULL) || ((int)sk_num(attr) <= i))
 940                                         break;
 941
 942                                 v=(CONF_VALUE *)sk_value(attr,i);
 943                                 type=v->name;
 944                                 if ((nid=OBJ_txt2nid(type)) == NID_undef)
 945                                         goto start2;
 946
 947                                 sprintf(buf,"%s_default",type);
 948                                 if ((def=CONF_get_string(req_conf,tmp_attr,buf))
 949                                         == NULL)
 950                                         def="";
 951
 952                                 sprintf(buf,"%s_value",type);
 953                                 if ((value=CONF_get_string(req_conf,tmp_attr,buf))
 954                                         == NULL)
 955                                         value=NULL;
 956
 957                                 sprintf(buf,"%s_min",type);
 958                                 min=(int)CONF_get_number(req_conf,tmp_attr,buf);
 959
 960                                 sprintf(buf,"%s_max",type);
 961                                 max=(int)CONF_get_number(req_conf,tmp_attr,buf);
 962
 963                                 if (!add_attribute_object(ri->attributes,
 964                                         v->value,def,value,nid,min,max))
 965                                         goto err;
 966                                 }
 967                         }
 968                 }
 969         else
 970                 {
 971                 BIO_printf(bio_err,"No template, please set one up.\n");
 972                 goto err;
 973                 }
 974
 975         X509_REQ_set_pubkey(req,pkey);
 976
 977         ret=1;
 978 err:
 979         return(ret);
 980         }
 981
 982 static int add_DN_object(X509_NAME *n, char *text, char *def, char *value,
 983              int nid, int min, int max)
 984         {
 985         int i,j,ret=0;
 986         X509_NAME_ENTRY *ne=NULL;
 987         MS_STATIC char buf[1024];
 988
 989         BIO_printf(bio_err,"%s [%s]:",text,def);
 990         BIO_flush(bio_err);
 991         if (value != NULL)
 992                 {
 993                 strcpy(buf,value);
 994                 strcat(buf,"\n");
 995                 BIO_printf(bio_err,"%s\n",value);
 996                 }
 997         else
 998                 {
 999                 buf[0]='\0';
1000                 fgets(buf,1024,stdin);
1001                 }
1002
1003         if (buf[0] == '\0') return(0);
1004         else if (buf[0] == '\n')
1005                 {
1006                 if ((def == NULL) || (def[0] == '\0'))
1007                         return(1);
1008                 strcpy(buf,def);
1009                 strcat(buf,"\n");
1010                 }
1011         else if ((buf[0] == '.') && (buf[1] == '\n')) return(1);
1012
1013         i=strlen(buf);
1014         if (buf[i-1] != '\n')
1015                 {
1016                 BIO_printf(bio_err,"weird input :-(\n");
1017                 return(0);
1018                 }
1019         buf[--i]='\0';
1020
1021         j=ASN1_PRINTABLE_type((unsigned char *)buf,-1);
1022         if (req_fix_data(nid,&j,i,min,max) == 0)
1023                 goto err;
1024         if ((ne=X509_NAME_ENTRY_create_by_NID(NULL,nid,j,(unsigned char *)buf,
1025                 strlen(buf)))
1026                 == NULL) goto err;
1027         if (!X509_NAME_add_entry(n,ne,X509_NAME_entry_count(n),0))
1028                 goto err;
1029
1030         ret=1;
1031 err:
1032         if (ne != NULL) X509_NAME_ENTRY_free(ne);
1033         return(ret);
1034         }
1035
1036 static int add_attribute_object(STACK *n, char *text, char *def, char *value,
1037              int nid, int min, int max)
1038         {
1039         int i,z;
1040         X509_ATTRIBUTE *xa=NULL;
1041         static char buf[1024];
1042         ASN1_BIT_STRING *bs=NULL;
1043         ASN1_TYPE *at=NULL;
1044
1045 start:
1046         BIO_printf(bio_err,"%s [%s]:",text,def);
1047         BIO_flush(bio_err);
1048         if (value != NULL)
1049                 {
1050                 strcpy(buf,value);
1051                 strcat(buf,"\n");
1052                 BIO_printf(bio_err,"%s\n",value);
1053                 }
1054         else
1055                 {
1056                 buf[0]='\0';
1057                 fgets(buf,1024,stdin);
1058                 }
1059
1060         if (buf[0] == '\0') return(0);
1061         else if (buf[0] == '\n')
1062                 {
1063                 if ((def == NULL) || (def[0] == '\0'))
1064                         return(1);
1065                 strcpy(buf,def);
1066                 strcat(buf,"\n");
1067                 }
1068         else if ((buf[0] == '.') && (buf[1] == '\n')) return(1);
1069
1070         i=strlen(buf);
1071         if (buf[i-1] != '\n')
1072                 {
1073                 BIO_printf(bio_err,"weird input :-(\n");
1074                 return(0);
1075                 }
1076         buf[--i]='\0';
1077
1078         /* add object plus value */
1079         if ((xa=X509_ATTRIBUTE_new()) == NULL)
1080                 goto err;
1081         if ((xa->value.set=sk_new_null()) == NULL)
1082                 goto err;
1083         xa->set=1;
1084
1085         if (xa->object != NULL) ASN1_OBJECT_free(xa->object);
1086         xa->object=OBJ_nid2obj(nid);
1087
1088         if ((bs=ASN1_BIT_STRING_new()) == NULL) goto err;
1089
1090         bs->type=ASN1_PRINTABLE_type((unsigned char *)buf,-1);
1091
1092         z=req_fix_data(nid,&bs->type,i,min,max);
1093         if (z == 0)
1094                 {
1095                 if (value == NULL)
1096                         goto start;
1097                 else    goto err;
1098                 }
1099
1100         if (!ASN1_STRING_set(bs,(unsigned char *)buf,i+1))
1101                 { BIO_printf(bio_err,"Malloc failure\n"); goto err; }
1102
1103         if ((at=ASN1_TYPE_new()) == NULL)
1104                 { BIO_printf(bio_err,"Malloc failure\n"); goto err; }
1105
1106         ASN1_TYPE_set(at,bs->type,(char *)bs);
1107         sk_push(xa->value.set,(char *)at);
1108         bs=NULL;
1109         at=NULL;
1110         /* only one item per attribute */
1111
1112         if (!sk_push(n,(char *)xa)) goto err;
1113         return(1);
1114 err:
1115         if (xa != NULL) X509_ATTRIBUTE_free(xa);
1116         if (at != NULL) ASN1_TYPE_free(at);
1117         if (bs != NULL) ASN1_BIT_STRING_free(bs);
1118         return(0);
1119         }
1120
1121 static void MS_CALLBACK req_cb(int p, int n, char *arg)
1122         {
1123         char c='*';
1124
1125         if (p == 0) c='.';
1126         if (p == 1) c='+';
1127         if (p == 2) c='*';
1128         if (p == 3) c='\n';
1129         BIO_write((BIO *)arg,&c,1);
1130         BIO_flush((BIO *)arg);
1131 #ifdef LINT
1132         p=n;
1133 #endif
1134         }
1135
1136 static int req_fix_data(int nid, int *type, int len, int min, int max)
1137         {
1138         if (nid == NID_pkcs9_emailAddress)
1139                 *type=V_ASN1_IA5STRING;
1140         if ((nid == NID_commonName) && (*type == V_ASN1_IA5STRING))
1141                 *type=V_ASN1_T61STRING;
1142         if ((nid == NID_pkcs9_challengePassword) &&
1143                 (*type == V_ASN1_IA5STRING))
1144                 *type=V_ASN1_T61STRING;
1145
1146         if ((nid == NID_pkcs9_unstructuredName) &&
1147                 (*type == V_ASN1_T61STRING))
1148                 {
1149                 BIO_printf(bio_err,"invalid characters in string, please re-enter the string\n");
1150                 return(0);
1151                 }
1152         if (nid == NID_pkcs9_unstructuredName)
1153                 *type=V_ASN1_IA5STRING;
1154
1155         if (len < min)
1156                 {
1157                 BIO_printf(bio_err,"string is too short, it needs to be at least %d bytes long\n",min);
1158                 return(0);
1159                 }
1160         if ((max != 0) && (len > max))
1161                 {
1162                 BIO_printf(bio_err,"string is too long, it needs to be less than  %d bytes long\n",max);
1163                 return(0);
1164                 }
1165         return(1);
1166         }
1167
1168 /* Check if the end of a string matches 'end' */
1169 static int check_end(char *str, char *end)
1170 {
1171         int elen, slen;
1172         char *tmp;
1173         elen = strlen(end);
1174         slen = strlen(str);
1175         if(elen > slen) return 1;
1176         tmp = str + slen - elen;
1177         return strcmp(tmp, end);
1178 }
1179
1180 static int add_oid_section(LHASH *conf)
1181 {
1182         char *p;
1183         STACK *sktmp;
1184         CONF_VALUE *cnf;
1185         int i;
1186         if(!(p=CONF_get_string(conf,NULL,"oid_section"))) return 1;
1187         if(!(sktmp = CONF_get_section(conf, p))) {
1188                 BIO_printf(bio_err, "problem loading oid section %s\n", p);
1189                 return 0;
1190         }
1191         for(i = 0; i < sk_num(sktmp); i++) {
1192                 cnf = (CONF_VALUE *)sk_value(sktmp, i);
1193                 if(OBJ_create(cnf->value, cnf->name, cnf->name) == NID_undef) {
1194                         BIO_printf(bio_err, "problem creating object %s=%s\n",
1195                                                          cnf->name, cnf->value);
1196                         return 0;
1197                 }
1198         }
1199         return 1;
1200 }