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 /* Until the key-gen callbacks are modified to use newer prototypes, we allow
  60  * deprecated functions for openssl-internal code */
  61 #ifdef OPENSSL_NO_DEPRECATED
  62 #undef OPENSSL_NO_DEPRECATED
  63 #endif
  64
  65 #include <stdio.h>
  66 #include <stdlib.h>
  67 #include <time.h>
  68 #include <string.h>
  69 #ifdef OPENSSL_NO_STDIO
  70 #define APPS_WIN16
  71 #endif
  72 #include "apps.h"
  73 #include <openssl/bio.h>
  74 #include <openssl/evp.h>
  75 #include <openssl/conf.h>
  76 #include <openssl/err.h>
  77 #include <openssl/asn1.h>
  78 #include <openssl/x509.h>
  79 #include <openssl/x509v3.h>
  80 #include <openssl/objects.h>
  81 #include <openssl/pem.h>
  82 #include <openssl/bn.h>
  83 #ifndef OPENSSL_NO_RSA
  84 #include <openssl/rsa.h>
  85 #endif
  86 #ifndef OPENSSL_NO_DSA
  87 #include <openssl/dsa.h>
  88 #endif
  89
  90 #define SECTION         "req"
  91
  92 #define BITS            "default_bits"
  93 #define KEYFILE         "default_keyfile"
  94 #define PROMPT          "prompt"
  95 #define DISTINGUISHED_NAME      "distinguished_name"
  96 #define ATTRIBUTES      "attributes"
  97 #define V3_EXTENSIONS   "x509_extensions"
  98 #define REQ_EXTENSIONS  "req_extensions"
  99 #define STRING_MASK     "string_mask"
 100 #define UTF8_IN         "utf8"
 101
 102 #define DEFAULT_KEY_LENGTH      512
 103 #define MIN_KEY_LENGTH          384
 104
 105 #undef PROG
 106 #define PROG    req_main
 107
 108 /*-
 109  * -inform arg  - input format - default PEM (DER or PEM)
 110  * -outform arg - output format - default PEM
 111  * -in arg      - input file - default stdin
 112  * -out arg     - output file - default stdout
 113  * -verify      - check request signature
 114  * -noout       - don't print stuff out.
 115  * -text        - print out human readable text.
 116  * -nodes       - no des encryption
 117  * -config file - Load configuration file.
 118  * -key file    - make a request using key in file (or use it for verification).
 119  * -keyform arg - key file format.
 120  * -rand file(s) - load the file(s) into the PRNG.
 121  * -newkey      - make a key and a request.
 122  * -modulus     - print RSA modulus.
 123  * -pubkey      - output Public Key.
 124  * -x509        - output a self signed X509 structure instead.
 125  * -asn1-kludge - output new certificate request in a format that some CA's
 126  *                require.  This format is wrong
 127  */
 128
 129 static int make_REQ(X509_REQ *req,EVP_PKEY *pkey,char *dn,int mutlirdn,
 130                 int attribs,unsigned long chtype);
 131 static int build_subject(X509_REQ *req, char *subj, unsigned long chtype,
 132                 int multirdn);
 133 static int prompt_info(X509_REQ *req,
 134                 STACK_OF(CONF_VALUE) *dn_sk, char *dn_sect,
 135                 STACK_OF(CONF_VALUE) *attr_sk, char *attr_sect, int attribs,
 136                 unsigned long chtype);
 137 static int auto_info(X509_REQ *req, STACK_OF(CONF_VALUE) *sk,
 138                                 STACK_OF(CONF_VALUE) *attr, int attribs,
 139                                 unsigned long chtype);
 140 static int add_attribute_object(X509_REQ *req, char *text, const char *def,
 141                                 char *value, int nid, int n_min,
 142                                 int n_max, unsigned long chtype);
 143 static int add_DN_object(X509_NAME *n, char *text, const char *def, char *value,
 144         int nid,int n_min,int n_max, unsigned long chtype, int mval);
 145 static int genpkey_cb(EVP_PKEY_CTX *ctx);
 146 static int req_check_len(int len,int n_min,int n_max);
 147 static int check_end(const char *str, const char *end);
 148 static EVP_PKEY_CTX *set_keygen_ctx(BIO *err, const char *gstr, int *pkey_type,
 149                                         long *pkeylen, char **palgnam,
 150                                         ENGINE *keygen_engine);
 151 #ifndef MONOLITH
 152 static char *default_config_file=NULL;
 153 #endif
 154 static CONF *req_conf=NULL;
 155 static int batch=0;
 156
 157 int MAIN(int, char **);
 158
 159 int MAIN(int argc, char **argv)
 160         {
 161         ENGINE *e = NULL, *gen_eng = NULL;
 162         unsigned long nmflag = 0, reqflag = 0;
 163         int ex=1,x509=0,days=30;
 164         X509 *x509ss=NULL;
 165         X509_REQ *req=NULL;
 166         EVP_PKEY_CTX *genctx = NULL;
 167         const char *keyalg = NULL;
 168         char *keyalgstr = NULL;
 169         STACK_OF(OPENSSL_STRING) *pkeyopts = NULL;
 170         EVP_PKEY *pkey=NULL;
 171         int i=0,badops=0,newreq=0,verbose=0,pkey_type=-1;
 172         long newkey = -1;
 173         BIO *in=NULL,*out=NULL;
 174         int informat,outformat,verify=0,noout=0,text=0,keyform=FORMAT_PEM;
 175         int nodes=0,kludge=0,newhdr=0,subject=0,pubkey=0;
 176         char *infile,*outfile,*prog,*keyfile=NULL,*template=NULL,*keyout=NULL;
 177 #ifndef OPENSSL_NO_ENGINE
 178         char *engine=NULL;
 179 #endif
 180         char *extensions = NULL;
 181         char *req_exts = NULL;
 182         const EVP_CIPHER *cipher=NULL;
 183         ASN1_INTEGER *serial = NULL;
 184         int modulus=0;
 185         char *inrand=NULL;
 186         char *passargin = NULL, *passargout = NULL;
 187         char *passin = NULL, *passout = NULL;
 188         char *p;
 189         char *subj = NULL;
 190         int multirdn = 0;
 191         const EVP_MD *md_alg=NULL,*digest=NULL;
 192         unsigned long chtype = MBSTRING_ASC;
 193 #ifndef MONOLITH
 194         char *to_free;
 195         long errline;
 196 #endif
 197
 198         req_conf = NULL;
 199 #ifndef OPENSSL_NO_DES
 200         cipher=EVP_des_ede3_cbc();
 201 #endif
 202         apps_startup();
 203
 204         if (bio_err == NULL)
 205                 if ((bio_err=BIO_new(BIO_s_file())) != NULL)
 206                         BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);
 207
 208         infile=NULL;
 209         outfile=NULL;
 210         informat=FORMAT_PEM;
 211         outformat=FORMAT_PEM;
 212
 213         prog=argv[0];
 214         argc--;
 215         argv++;
 216         while (argc >= 1)
 217                 {
 218                 if      (strcmp(*argv,"-inform") == 0)
 219                         {
 220                         if (--argc < 1) goto bad;
 221                         informat=str2fmt(*(++argv));
 222                         }
 223                 else if (strcmp(*argv,"-outform") == 0)
 224                         {
 225                         if (--argc < 1) goto bad;
 226                         outformat=str2fmt(*(++argv));
 227                         }
 228 #ifndef OPENSSL_NO_ENGINE
 229                 else if (strcmp(*argv,"-engine") == 0)
 230                         {
 231                         if (--argc < 1) goto bad;
 232                         engine= *(++argv);
 233                         }
 234                 else if (strcmp(*argv,"-keygen_engine") == 0)
 235                         {
 236                         if (--argc < 1) goto bad;
 237                         gen_eng = ENGINE_by_id(*(++argv));
 238                         if (gen_eng == NULL)
 239                                 {
 240                                 BIO_printf(bio_err, "Can't find keygen engine %s\n", *argv);
 241                                 goto end;
 242                                 }
 243                         }
 244 #endif
 245                 else if (strcmp(*argv,"-key") == 0)
 246                         {
 247                         if (--argc < 1) goto bad;
 248                         keyfile= *(++argv);
 249                         }
 250                 else if (strcmp(*argv,"-pubkey") == 0)
 251                         {
 252                         pubkey=1;
 253                         }
 254                 else if (strcmp(*argv,"-new") == 0)
 255                         {
 256                         newreq=1;
 257                         }
 258                 else if (strcmp(*argv,"-config") == 0)
 259                         {
 260                         if (--argc < 1) goto bad;
 261                         template= *(++argv);
 262                         }
 263                 else if (strcmp(*argv,"-keyform") == 0)
 264                         {
 265                         if (--argc < 1) goto bad;
 266                         keyform=str2fmt(*(++argv));
 267                         }
 268                 else if (strcmp(*argv,"-in") == 0)
 269                         {
 270                         if (--argc < 1) goto bad;
 271                         infile= *(++argv);
 272                         }
 273                 else if (strcmp(*argv,"-out") == 0)
 274                         {
 275                         if (--argc < 1) goto bad;
 276                         outfile= *(++argv);
 277                         }
 278                 else if (strcmp(*argv,"-keyout") == 0)
 279                         {
 280                         if (--argc < 1) goto bad;
 281                         keyout= *(++argv);
 282                         }
 283                 else if (strcmp(*argv,"-passin") == 0)
 284                         {
 285                         if (--argc < 1) goto bad;
 286                         passargin= *(++argv);
 287                         }
 288                 else if (strcmp(*argv,"-passout") == 0)
 289                         {
 290                         if (--argc < 1) goto bad;
 291                         passargout= *(++argv);
 292                         }
 293                 else if (strcmp(*argv,"-rand") == 0)
 294                         {
 295                         if (--argc < 1) goto bad;
 296                         inrand= *(++argv);
 297                         }
 298                 else if (strcmp(*argv,"-newkey") == 0)
 299                         {
 300                         if (--argc < 1)
 301                                 goto bad;
 302                         keyalg = *(++argv);
 303                         newreq=1;
 304                         }
 305                 else if (strcmp(*argv,"-pkeyopt") == 0)
 306                         {
 307                         if (--argc < 1)
 308                                 goto bad;
 309                         if (!pkeyopts)
 310                                 pkeyopts = sk_OPENSSL_STRING_new_null();
 311                         if (!pkeyopts || !sk_OPENSSL_STRING_push(pkeyopts, *(++argv)))
 312                                 goto bad;
 313                         }
 314                 else if (strcmp(*argv,"-batch") == 0)
 315                         batch=1;
 316                 else if (strcmp(*argv,"-newhdr") == 0)
 317                         newhdr=1;
 318                 else if (strcmp(*argv,"-modulus") == 0)
 319                         modulus=1;
 320                 else if (strcmp(*argv,"-verify") == 0)
 321                         verify=1;
 322                 else if (strcmp(*argv,"-nodes") == 0)
 323                         nodes=1;
 324                 else if (strcmp(*argv,"-noout") == 0)
 325                         noout=1;
 326                 else if (strcmp(*argv,"-verbose") == 0)
 327                         verbose=1;
 328                 else if (strcmp(*argv,"-utf8") == 0)
 329                         chtype = MBSTRING_UTF8;
 330                 else if (strcmp(*argv,"-nameopt") == 0)
 331                         {
 332                         if (--argc < 1) goto bad;
 333                         if (!set_name_ex(&nmflag, *(++argv))) goto bad;
 334                         }
 335                 else if (strcmp(*argv,"-reqopt") == 0)
 336                         {
 337                         if (--argc < 1) goto bad;
 338                         if (!set_cert_ex(&reqflag, *(++argv))) goto bad;
 339                         }
 340                 else if (strcmp(*argv,"-subject") == 0)
 341                         subject=1;
 342                 else if (strcmp(*argv,"-text") == 0)
 343                         text=1;
 344                 else if (strcmp(*argv,"-x509") == 0)
 345                         x509=1;
 346                 else if (strcmp(*argv,"-asn1-kludge") == 0)
 347                         kludge=1;
 348                 else if (strcmp(*argv,"-no-asn1-kludge") == 0)
 349                         kludge=0;
 350                 else if (strcmp(*argv,"-subj") == 0)
 351                         {
 352                         if (--argc < 1) goto bad;
 353                         subj= *(++argv);
 354                         }
 355                 else if (strcmp(*argv,"-multivalue-rdn") == 0)
 356                         multirdn=1;
 357                 else if (strcmp(*argv,"-days") == 0)
 358                         {
 359                         if (--argc < 1) goto bad;
 360                         days= atoi(*(++argv));
 361                         if (days == 0) days=30;
 362                         }
 363                 else if (strcmp(*argv,"-set_serial") == 0)
 364                         {
 365                         if (--argc < 1) goto bad;
 366                         serial = s2i_ASN1_INTEGER(NULL, *(++argv));
 367                         if (!serial) goto bad;
 368                         }
 369                 else if (strcmp(*argv,"-extensions") == 0)
 370                         {
 371                         if (--argc < 1) goto bad;
 372                         extensions = *(++argv);
 373                         }
 374                 else if (strcmp(*argv,"-reqexts") == 0)
 375                         {
 376                         if (--argc < 1) goto bad;
 377                         req_exts = *(++argv);
 378                         }
 379                 else if ((md_alg=EVP_get_digestbyname(&((*argv)[1]))) != NULL)
 380                         {
 381                         /* ok */
 382                         digest=md_alg;
 383                         }
 384                 else
 385                         {
 386                         BIO_printf(bio_err,"unknown option %s\n",*argv);
 387                         badops=1;
 388                         break;
 389                         }
 390                 argc--;
 391                 argv++;
 392                 }
 393
 394         if (badops)
 395                 {
 396 bad:
 397                 BIO_printf(bio_err,"%s [options] <infile >outfile\n",prog);
 398                 BIO_printf(bio_err,"where options  are\n");
 399                 BIO_printf(bio_err," -inform arg    input format - DER or PEM\n");
 400                 BIO_printf(bio_err," -outform arg   output format - DER or PEM\n");
 401                 BIO_printf(bio_err," -in arg        input file\n");
 402                 BIO_printf(bio_err," -out arg       output file\n");
 403                 BIO_printf(bio_err," -text          text form of request\n");
 404                 BIO_printf(bio_err," -pubkey        output public key\n");
 405                 BIO_printf(bio_err," -noout         do not output REQ\n");
 406                 BIO_printf(bio_err," -verify        verify signature on REQ\n");
 407                 BIO_printf(bio_err," -modulus       RSA modulus\n");
 408                 BIO_printf(bio_err," -nodes         don't encrypt the output key\n");
 409 #ifndef OPENSSL_NO_ENGINE
 410                 BIO_printf(bio_err," -engine e      use engine e, possibly a hardware device\n");
 411 #endif
 412                 BIO_printf(bio_err," -subject       output the request's subject\n");
 413                 BIO_printf(bio_err," -passin        private key password source\n");
 414                 BIO_printf(bio_err," -key file      use the private key contained in file\n");
 415                 BIO_printf(bio_err," -keyform arg   key file format\n");
 416                 BIO_printf(bio_err," -keyout arg    file to send the key to\n");
 417                 BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
 418                 BIO_printf(bio_err,"                load the file (or the files in the directory) into\n");
 419                 BIO_printf(bio_err,"                the random number generator\n");
 420                 BIO_printf(bio_err," -newkey rsa:bits generate a new RSA key of 'bits' in size\n");
 421                 BIO_printf(bio_err," -newkey dsa:file generate a new DSA key, parameters taken from CA in 'file'\n");
 422 #ifndef OPENSSL_NO_ECDSA
 423                 BIO_printf(bio_err," -newkey ec:file generate a new EC key, parameters taken from CA in 'file'\n");
 424 #endif
 425                 BIO_printf(bio_err," -[digest]      Digest to sign with (md5, sha1, md2, mdc2, md4)\n");
 426                 BIO_printf(bio_err," -config file   request template file.\n");
 427                 BIO_printf(bio_err," -subj arg      set or modify request subject\n");
 428                 BIO_printf(bio_err," -multivalue-rdn enable support for multivalued RDNs\n");
 429                 BIO_printf(bio_err," -new           new request.\n");
 430                 BIO_printf(bio_err," -batch         do not ask anything during request generation\n");
 431                 BIO_printf(bio_err," -x509          output a x509 structure instead of a cert. req.\n");
 432                 BIO_printf(bio_err," -days          number of days a certificate generated by -x509 is valid for.\n");
 433                 BIO_printf(bio_err," -set_serial    serial number to use for a certificate generated by -x509.\n");
 434                 BIO_printf(bio_err," -newhdr        output \"NEW\" in the header lines\n");
 435                 BIO_printf(bio_err," -asn1-kludge   Output the 'request' in a format that is wrong but some CA's\n");
 436                 BIO_printf(bio_err,"                have been reported as requiring\n");
 437                 BIO_printf(bio_err," -extensions .. specify certificate extension section (override value in config file)\n");
 438                 BIO_printf(bio_err," -reqexts ..    specify request extension section (override value in config file)\n");
 439                 BIO_printf(bio_err," -utf8          input characters are UTF8 (default ASCII)\n");
 440                 BIO_printf(bio_err," -nameopt arg    - various certificate name options\n");
 441                 BIO_printf(bio_err," -reqopt arg    - various request text options\n\n");
 442                 goto end;
 443                 }
 444
 445         ERR_load_crypto_strings();
 446         if(!app_passwd(bio_err, passargin, passargout, &passin, &passout)) {
 447                 BIO_printf(bio_err, "Error getting passwords\n");
 448                 goto end;
 449         }
 450
 451 #ifndef MONOLITH /* else this has happened in openssl.c (global `config') */
 452         /* Lets load up our environment a little */
 453         p=getenv("OPENSSL_CONF");
 454         if (p == NULL)
 455                 p=getenv("SSLEAY_CONF");
 456         if (p == NULL)
 457                 p=to_free=make_config_name();
 458         default_config_file=p;
 459         config=NCONF_new(NULL);
 460         i=NCONF_load(config, p, &errline);
 461 #endif
 462
 463         if (template != NULL)
 464                 {
 465                 long errline = -1;
 466
 467                 if( verbose )
 468                         BIO_printf(bio_err,"Using configuration from %s\n",template);
 469                 req_conf=NCONF_new(NULL);
 470                 i=NCONF_load(req_conf,template,&errline);
 471                 if (i == 0)
 472                         {
 473                         BIO_printf(bio_err,"error on line %ld of %s\n",errline,template);
 474                         goto end;
 475                         }
 476                 }
 477         else
 478                 {
 479                 req_conf=config;
 480
 481                 if (req_conf == NULL)
 482                         {
 483                         BIO_printf(bio_err,"Unable to load config info from %s\n", default_config_file);
 484                         if (newreq)
 485                                 goto end;
 486                         }
 487                 else if( verbose )
 488                         BIO_printf(bio_err,"Using configuration from %s\n",
 489                         default_config_file);
 490                 }
 491
 492         if (req_conf != NULL)
 493                 {
 494                 if (!load_config(bio_err, req_conf))
 495                         goto end;
 496                 p=NCONF_get_string(req_conf,NULL,"oid_file");
 497                 if (p == NULL)
 498                         ERR_clear_error();
 499                 if (p != NULL)
 500                         {
 501                         BIO *oid_bio;
 502
 503                         oid_bio=BIO_new_file(p,"r");
 504                         if (oid_bio == NULL)
 505                                 {
 506                                 /*-
 507                                 BIO_printf(bio_err,"problems opening %s for extra oid's\n",p);
 508                                 ERR_print_errors(bio_err);
 509                                 */
 510                                 }
 511                         else
 512                                 {
 513                                 OBJ_create_objects(oid_bio);
 514                                 BIO_free(oid_bio);
 515                                 }
 516                         }
 517                 }
 518         if(!add_oid_section(bio_err, req_conf)) goto end;
 519
 520         if (md_alg == NULL)
 521                 {
 522                 p=NCONF_get_string(req_conf,SECTION,"default_md");
 523                 if (p == NULL)
 524                         ERR_clear_error();
 525                 if (p != NULL)
 526                         {
 527                         if ((md_alg=EVP_get_digestbyname(p)) != NULL)
 528                                 digest=md_alg;
 529                         }
 530                 }
 531
 532         if (!extensions)
 533                 {
 534                 extensions = NCONF_get_string(req_conf, SECTION, V3_EXTENSIONS);
 535                 if (!extensions)
 536                         ERR_clear_error();
 537                 }
 538         if (extensions) {
 539                 /* Check syntax of file */
 540                 X509V3_CTX ctx;
 541                 X509V3_set_ctx_test(&ctx);
 542                 X509V3_set_nconf(&ctx, req_conf);
 543                 if(!X509V3_EXT_add_nconf(req_conf, &ctx, extensions, NULL)) {
 544                         BIO_printf(bio_err,
 545                          "Error Loading extension section %s\n", extensions);
 546                         goto end;
 547                 }
 548         }
 549
 550         if(!passin)
 551                 {
 552                 passin = NCONF_get_string(req_conf, SECTION, "input_password");
 553                 if (!passin)
 554                         ERR_clear_error();
 555                 }
 556
 557         if(!passout)
 558                 {
 559                 passout = NCONF_get_string(req_conf, SECTION, "output_password");
 560                 if (!passout)
 561                         ERR_clear_error();
 562                 }
 563
 564         p = NCONF_get_string(req_conf, SECTION, STRING_MASK);
 565         if (!p)
 566                 ERR_clear_error();
 567
 568         if(p && !ASN1_STRING_set_default_mask_asc(p)) {
 569                 BIO_printf(bio_err, "Invalid global string mask setting %s\n", p);
 570                 goto end;
 571         }
 572
 573         if (chtype != MBSTRING_UTF8)
 574                 {
 575                 p = NCONF_get_string(req_conf, SECTION, UTF8_IN);
 576                 if (!p)
 577                         ERR_clear_error();
 578                 else if (!strcmp(p, "yes"))
 579                         chtype = MBSTRING_UTF8;
 580                 }
 581
 582
 583         if(!req_exts)
 584                 {
 585                 req_exts = NCONF_get_string(req_conf, SECTION, REQ_EXTENSIONS);
 586                 if (!req_exts)
 587                         ERR_clear_error();
 588                 }
 589         if(req_exts) {
 590                 /* Check syntax of file */
 591                 X509V3_CTX ctx;
 592                 X509V3_set_ctx_test(&ctx);
 593                 X509V3_set_nconf(&ctx, req_conf);
 594                 if(!X509V3_EXT_add_nconf(req_conf, &ctx, req_exts, NULL)) {
 595                         BIO_printf(bio_err,
 596                          "Error Loading request extension section %s\n",
 597                                                                 req_exts);
 598                         goto end;
 599                 }
 600         }
 601
 602         in=BIO_new(BIO_s_file());
 603         out=BIO_new(BIO_s_file());
 604         if ((in == NULL) || (out == NULL))
 605                 goto end;
 606
 607 #ifndef OPENSSL_NO_ENGINE
 608         e = setup_engine(bio_err, engine, 0);
 609 #endif
 610
 611         if (keyfile != NULL)
 612                 {
 613                 pkey = load_key(bio_err, keyfile, keyform, 0, passin, e,
 614                         "Private Key");
 615                 if (!pkey)
 616                         {
 617                         /* load_key() has already printed an appropriate
 618                            message */
 619                         goto end;
 620                         }
 621                 else
 622                         {
 623                         char *randfile = NCONF_get_string(req_conf,SECTION,"RANDFILE");
 624                         if (randfile == NULL)
 625                                 ERR_clear_error();
 626                         app_RAND_load_file(randfile, bio_err, 0);
 627                         }
 628                 }
 629
 630         if (newreq && (pkey == NULL))
 631                 {
 632                 char *randfile = NCONF_get_string(req_conf,SECTION,"RANDFILE");
 633                 if (randfile == NULL)
 634                         ERR_clear_error();
 635                 app_RAND_load_file(randfile, bio_err, 0);
 636                 if (inrand)
 637                         app_RAND_load_files(inrand);
 638
 639                 if (!NCONF_get_number(req_conf,SECTION,BITS, &newkey))
 640                         {
 641                         newkey=DEFAULT_KEY_LENGTH;
 642                         }
 643
 644                 if (keyalg)
 645                         {
 646                         genctx = set_keygen_ctx(bio_err, keyalg, &pkey_type, &newkey,
 647                                                         &keyalgstr, gen_eng);
 648                         if (!genctx)
 649                                 goto end;
 650                         }
 651
 652                 if (newkey < MIN_KEY_LENGTH && (pkey_type == EVP_PKEY_RSA || pkey_type == EVP_PKEY_DSA))
 653                         {
 654                         BIO_printf(bio_err,"private key length is too short,\n");
 655                         BIO_printf(bio_err,"it needs to be at least %d bits, not %ld\n",MIN_KEY_LENGTH,newkey);
 656                         goto end;
 657                         }
 658
 659                 if (!genctx)
 660                         {
 661                         genctx = set_keygen_ctx(bio_err, NULL, &pkey_type, &newkey,
 662                                                         &keyalgstr, gen_eng);
 663                         if (!genctx)
 664                                 goto end;
 665                         }
 666
 667                 if (pkeyopts)
 668                         {
 669                         char *genopt;
 670                         for (i = 0; i < sk_OPENSSL_STRING_num(pkeyopts); i++)
 671                                 {
 672                                 genopt = sk_OPENSSL_STRING_value(pkeyopts, i);
 673                                 if (pkey_ctrl_string(genctx, genopt) <= 0)
 674                                         {
 675                                         BIO_printf(bio_err,
 676                                                 "parameter error \"%s\"\n",
 677                                                 genopt);
 678                                         ERR_print_errors(bio_err);
 679                                         goto end;
 680                                         }
 681                                 }
 682                         }
 683
 684                 BIO_printf(bio_err,"Generating a %ld bit %s private key\n",
 685                                 newkey, keyalgstr);
 686
 687                 EVP_PKEY_CTX_set_cb(genctx, genpkey_cb);
 688                 EVP_PKEY_CTX_set_app_data(genctx, bio_err);
 689
 690                 if (EVP_PKEY_keygen(genctx, &pkey) <= 0)
 691                         {
 692                         BIO_puts(bio_err, "Error Generating Key\n");
 693                         goto end;
 694                         }
 695
 696                 EVP_PKEY_CTX_free(genctx);
 697                 genctx = NULL;
 698
 699                 app_RAND_write_file(randfile, bio_err);
 700
 701                 if (keyout == NULL)
 702                         {
 703                         keyout=NCONF_get_string(req_conf,SECTION,KEYFILE);
 704                         if (keyout == NULL)
 705                                 ERR_clear_error();
 706                         }
 707
 708                 if (keyout == NULL)
 709                         {
 710                         BIO_printf(bio_err,"writing new private key to stdout\n");
 711                         BIO_set_fp(out,stdout,BIO_NOCLOSE);
 712 #ifdef OPENSSL_SYS_VMS
 713                         {
 714                         BIO *tmpbio = BIO_new(BIO_f_linebuffer());
 715                         out = BIO_push(tmpbio, out);
 716                         }
 717 #endif
 718                         }
 719                 else
 720                         {
 721                         BIO_printf(bio_err,"writing new private key to '%s'\n",keyout);
 722                         if (BIO_write_filename(out,keyout) <= 0)
 723                                 {
 724                                 perror(keyout);
 725                                 goto end;
 726                                 }
 727                         }
 728
 729                 p=NCONF_get_string(req_conf,SECTION,"encrypt_rsa_key");
 730                 if (p == NULL)
 731                         {
 732                         ERR_clear_error();
 733                         p=NCONF_get_string(req_conf,SECTION,"encrypt_key");
 734                         if (p == NULL)
 735                                 ERR_clear_error();
 736                         }
 737                 if ((p != NULL) && (strcmp(p,"no") == 0))
 738                         cipher=NULL;
 739                 if (nodes) cipher=NULL;
 740
 741                 i=0;
 742 loop:
 743                 if (!PEM_write_bio_PrivateKey(out,pkey,cipher,
 744                         NULL,0,NULL,passout))
 745                         {
 746                         if ((ERR_GET_REASON(ERR_peek_error()) ==
 747                                 PEM_R_PROBLEMS_GETTING_PASSWORD) && (i < 3))
 748                                 {
 749                                 ERR_clear_error();
 750                                 i++;
 751                                 goto loop;
 752                                 }
 753                         goto end;
 754                         }
 755                 BIO_printf(bio_err,"-----\n");
 756                 }
 757
 758         if (!newreq)
 759                 {
 760                 /* Since we are using a pre-existing certificate
 761                  * request, the kludge 'format' info should not be
 762                  * changed. */
 763                 kludge= -1;
 764                 if (infile == NULL)
 765                         BIO_set_fp(in,stdin,BIO_NOCLOSE);
 766                 else
 767                         {
 768                         if (BIO_read_filename(in,infile) <= 0)
 769                                 {
 770                                 perror(infile);
 771                                 goto end;
 772                                 }
 773                         }
 774
 775                 if      (informat == FORMAT_ASN1)
 776                         req=d2i_X509_REQ_bio(in,NULL);
 777                 else if (informat == FORMAT_PEM)
 778                         req=PEM_read_bio_X509_REQ(in,NULL,NULL,NULL);
 779                 else
 780                         {
 781                         BIO_printf(bio_err,"bad input format specified for X509 request\n");
 782                         goto end;
 783                         }
 784                 if (req == NULL)
 785                         {
 786                         BIO_printf(bio_err,"unable to load X509 request\n");
 787                         goto end;
 788                         }
 789                 }
 790
 791         if (newreq || x509)
 792                 {
 793                 if (pkey == NULL)
 794                         {
 795                         BIO_printf(bio_err,"you need to specify a private key\n");
 796                         goto end;
 797                         }
 798
 799                 if (req == NULL)
 800                         {
 801                         req=X509_REQ_new();
 802                         if (req == NULL)
 803                                 {
 804                                 goto end;
 805                                 }
 806
 807                         i=make_REQ(req,pkey,subj,multirdn,!x509, chtype);
 808                         subj=NULL; /* done processing '-subj' option */
 809                         if ((kludge > 0) && !sk_X509_ATTRIBUTE_num(req->req_info->attributes))
 810                                 {
 811                                 sk_X509_ATTRIBUTE_free(req->req_info->attributes);
 812                                 req->req_info->attributes = NULL;
 813                                 }
 814                         if (!i)
 815                                 {
 816                                 BIO_printf(bio_err,"problems making Certificate Request\n");
 817                                 goto end;
 818                                 }
 819                         }
 820                 if (x509)
 821                         {
 822                         EVP_PKEY *tmppkey;
 823                         X509V3_CTX ext_ctx;
 824                         if ((x509ss=X509_new()) == NULL) goto end;
 825
 826                         /* Set version to V3 */
 827                         if(extensions && !X509_set_version(x509ss, 2)) goto end;
 828                         if (serial)
 829                                 {
 830                                 if (!X509_set_serialNumber(x509ss, serial)) goto end;
 831                                 }
 832                         else
 833                                 {
 834                                 if (!rand_serial(NULL,
 835                                         X509_get_serialNumber(x509ss)))
 836                                                 goto end;
 837                                 }
 838
 839                         if (!X509_set_issuer_name(x509ss, X509_REQ_get_subject_name(req))) goto end;
 840                         if (!X509_gmtime_adj(X509_get_notBefore(x509ss),0)) goto end;
 841                         if (!X509_time_adj_ex(X509_get_notAfter(x509ss), days, 0, NULL)) goto end;
 842                         if (!X509_set_subject_name(x509ss, X509_REQ_get_subject_name(req))) goto end;
 843                         tmppkey = X509_REQ_get_pubkey(req);
 844                         if (!tmppkey || !X509_set_pubkey(x509ss,tmppkey)) goto end;
 845                         EVP_PKEY_free(tmppkey);
 846
 847                         /* Set up V3 context struct */
 848
 849                         X509V3_set_ctx(&ext_ctx, x509ss, x509ss, NULL, NULL, 0);
 850                         X509V3_set_nconf(&ext_ctx, req_conf);
 851
 852                         /* Add extensions */
 853                         if(extensions && !X509V3_EXT_add_nconf(req_conf,
 854                                         &ext_ctx, extensions, x509ss))
 855                                 {
 856                                 BIO_printf(bio_err,
 857                                         "Error Loading extension section %s\n",
 858                                         extensions);
 859                                 goto end;
 860                                 }
 861
 862                         if (!(i=X509_sign(x509ss,pkey,digest)))
 863                                 {
 864                                 ERR_print_errors(bio_err);
 865                                 goto end;
 866                                 }
 867                         }
 868                 else
 869                         {
 870                         X509V3_CTX ext_ctx;
 871
 872                         /* Set up V3 context struct */
 873
 874                         X509V3_set_ctx(&ext_ctx, NULL, NULL, req, NULL, 0);
 875                         X509V3_set_nconf(&ext_ctx, req_conf);
 876
 877                         /* Add extensions */
 878                         if(req_exts && !X509V3_EXT_REQ_add_nconf(req_conf,
 879                                         &ext_ctx, req_exts, req))
 880                                 {
 881                                 BIO_printf(bio_err,
 882                                         "Error Loading extension section %s\n",
 883                                         req_exts);
 884                                 goto end;
 885                                 }
 886                         if (!(i=X509_REQ_sign(req,pkey,digest)))
 887                                 {
 888                                 ERR_print_errors(bio_err);
 889                                 goto end;
 890                                 }
 891                         }
 892                 }
 893
 894         if (subj && x509)
 895                 {
 896                 BIO_printf(bio_err, "Cannot modifiy certificate subject\n");
 897                 goto end;
 898                 }
 899
 900         if (subj && !x509)
 901                 {
 902                 if (verbose)
 903                         {
 904                         BIO_printf(bio_err, "Modifying Request's Subject\n");
 905                         print_name(bio_err, "old subject=", X509_REQ_get_subject_name(req), nmflag);
 906                         }
 907
 908                 if (build_subject(req, subj, chtype, multirdn) == 0)
 909                         {
 910                         BIO_printf(bio_err, "ERROR: cannot modify subject\n");
 911                         ex=1;
 912                         goto end;
 913                         }
 914
 915                 req->req_info->enc.modified = 1;
 916
 917                 if (verbose)
 918                         {
 919                         print_name(bio_err, "new subject=", X509_REQ_get_subject_name(req), nmflag);
 920                         }
 921                 }
 922
 923         if (verify && !x509)
 924                 {
 925                 int tmp=0;
 926
 927                 if (pkey == NULL)
 928                         {
 929                         pkey=X509_REQ_get_pubkey(req);
 930                         tmp=1;
 931                         if (pkey == NULL) goto end;
 932                         }
 933
 934                 i=X509_REQ_verify(req,pkey);
 935                 if (tmp) {
 936                         EVP_PKEY_free(pkey);
 937                         pkey=NULL;
 938                 }
 939
 940                 if (i < 0)
 941                         {
 942                         goto end;
 943                         }
 944                 else if (i == 0)
 945                         {
 946                         BIO_printf(bio_err,"verify failure\n");
 947                         ERR_print_errors(bio_err);
 948                         }
 949                 else /* if (i > 0) */
 950                         BIO_printf(bio_err,"verify OK\n");
 951                 }
 952
 953         if (noout && !text && !modulus && !subject && !pubkey)
 954                 {
 955                 ex=0;
 956                 goto end;
 957                 }
 958
 959         if (outfile == NULL)
 960                 {
 961                 BIO_set_fp(out,stdout,BIO_NOCLOSE);
 962 #ifdef OPENSSL_SYS_VMS
 963                 {
 964                 BIO *tmpbio = BIO_new(BIO_f_linebuffer());
 965                 out = BIO_push(tmpbio, out);
 966                 }
 967 #endif
 968                 }
 969         else
 970                 {
 971                 if ((keyout != NULL) && (strcmp(outfile,keyout) == 0))
 972                         i=(int)BIO_append_filename(out,outfile);
 973                 else
 974                         i=(int)BIO_write_filename(out,outfile);
 975                 if (!i)
 976                         {
 977                         perror(outfile);
 978                         goto end;
 979                         }
 980                 }
 981
 982         if (pubkey)
 983                 {
 984                 EVP_PKEY *tpubkey;
 985                 tpubkey=X509_REQ_get_pubkey(req);
 986                 if (tpubkey == NULL)
 987                         {
 988                         BIO_printf(bio_err,"Error getting public key\n");
 989                         ERR_print_errors(bio_err);
 990                         goto end;
 991                         }
 992                 PEM_write_bio_PUBKEY(out, tpubkey);
 993                 EVP_PKEY_free(tpubkey);
 994                 }
 995
 996         if (text)
 997                 {
 998                 if (x509)
 999                         X509_print_ex(out, x509ss, nmflag, reqflag);
1000                 else
1001                         X509_REQ_print_ex(out, req, nmflag, reqflag);
1002                 }
1003
1004         if(subject)
1005                 {
1006                 if(x509)
1007                         print_name(out, "subject=", X509_get_subject_name(x509ss), nmflag);
1008                 else
1009                         print_name(out, "subject=", X509_REQ_get_subject_name(req), nmflag);
1010                 }
1011
1012         if (modulus)
1013                 {
1014                 EVP_PKEY *tpubkey;
1015
1016                 if (x509)
1017                         tpubkey=X509_get_pubkey(x509ss);
1018                 else
1019                         tpubkey=X509_REQ_get_pubkey(req);
1020                 if (tpubkey == NULL)
1021                         {
1022                         fprintf(stdout,"Modulus=unavailable\n");
1023                         goto end;
1024                         }
1025                 fprintf(stdout,"Modulus=");
1026 #ifndef OPENSSL_NO_RSA
1027                 if (EVP_PKEY_base_id(tpubkey) == EVP_PKEY_RSA)
1028                         BN_print(out,tpubkey->pkey.rsa->n);
1029                 else
1030 #endif
1031                         fprintf(stdout,"Wrong Algorithm type");
1032                 EVP_PKEY_free(tpubkey);
1033                 fprintf(stdout,"\n");
1034                 }
1035
1036         if (!noout && !x509)
1037                 {
1038                 if      (outformat == FORMAT_ASN1)
1039                         i=i2d_X509_REQ_bio(out,req);
1040                 else if (outformat == FORMAT_PEM) {
1041                         if(newhdr) i=PEM_write_bio_X509_REQ_NEW(out,req);
1042                         else i=PEM_write_bio_X509_REQ(out,req);
1043                 } else {
1044                         BIO_printf(bio_err,"bad output format specified for outfile\n");
1045                         goto end;
1046                         }
1047                 if (!i)
1048                         {
1049                         BIO_printf(bio_err,"unable to write X509 request\n");
1050                         goto end;
1051                         }
1052                 }
1053         if (!noout && x509 && (x509ss != NULL))
1054                 {
1055                 if      (outformat == FORMAT_ASN1)
1056                         i=i2d_X509_bio(out,x509ss);
1057                 else if (outformat == FORMAT_PEM)
1058                         i=PEM_write_bio_X509(out,x509ss);
1059                 else    {
1060                         BIO_printf(bio_err,"bad output format specified for outfile\n");
1061                         goto end;
1062                         }
1063                 if (!i)
1064                         {
1065                         BIO_printf(bio_err,"unable to write X509 certificate\n");
1066                         goto end;
1067                         }
1068                 }
1069         ex=0;
1070 end:
1071 #ifndef MONOLITH
1072         if(to_free)
1073                 OPENSSL_free(to_free);
1074 #endif
1075         if (ex)
1076                 {
1077                 ERR_print_errors(bio_err);
1078                 }
1079         if ((req_conf != NULL) && (req_conf != config)) NCONF_free(req_conf);
1080         BIO_free(in);
1081         BIO_free_all(out);
1082         EVP_PKEY_free(pkey);
1083         if (genctx)
1084                 EVP_PKEY_CTX_free(genctx);
1085         if (pkeyopts)
1086                 sk_OPENSSL_STRING_free(pkeyopts);
1087 #ifndef OPENSSL_NO_ENGINE
1088         if (gen_eng)
1089                 ENGINE_free(gen_eng);
1090 #endif
1091         if (keyalgstr)
1092                 OPENSSL_free(keyalgstr);
1093         X509_REQ_free(req);
1094         X509_free(x509ss);
1095         ASN1_INTEGER_free(serial);
1096         if(passargin && passin) OPENSSL_free(passin);
1097         if(passargout && passout) OPENSSL_free(passout);
1098         OBJ_cleanup();
1099         apps_shutdown();
1100         OPENSSL_EXIT(ex);
1101         }
1102
1103 static int make_REQ(X509_REQ *req, EVP_PKEY *pkey, char *subj, int multirdn,
1104                         int attribs, unsigned long chtype)
1105         {
1106         int ret=0,i;
1107         char no_prompt = 0;
1108         STACK_OF(CONF_VALUE) *dn_sk, *attr_sk = NULL;
1109         char *tmp, *dn_sect,*attr_sect;
1110
1111         tmp=NCONF_get_string(req_conf,SECTION,PROMPT);
1112         if (tmp == NULL)
1113                 ERR_clear_error();
1114         if((tmp != NULL) && !strcmp(tmp, "no")) no_prompt = 1;
1115
1116         dn_sect=NCONF_get_string(req_conf,SECTION,DISTINGUISHED_NAME);
1117         if (dn_sect == NULL)
1118                 {
1119                 BIO_printf(bio_err,"unable to find '%s' in config\n",
1120                         DISTINGUISHED_NAME);
1121                 goto err;
1122                 }
1123         dn_sk=NCONF_get_section(req_conf,dn_sect);
1124         if (dn_sk == NULL)
1125                 {
1126                 BIO_printf(bio_err,"unable to get '%s' section\n",dn_sect);
1127                 goto err;
1128                 }
1129
1130         attr_sect=NCONF_get_string(req_conf,SECTION,ATTRIBUTES);
1131         if (attr_sect == NULL)
1132                 {
1133                 ERR_clear_error();
1134                 attr_sk=NULL;
1135                 }
1136         else
1137                 {
1138                 attr_sk=NCONF_get_section(req_conf,attr_sect);
1139                 if (attr_sk == NULL)
1140                         {
1141                         BIO_printf(bio_err,"unable to get '%s' section\n",attr_sect);
1142                         goto err;
1143                         }
1144                 }
1145
1146         /* setup version number */
1147         if (!X509_REQ_set_version(req,0L)) goto err; /* version 1 */
1148
1149         if (no_prompt)
1150                 i = auto_info(req, dn_sk, attr_sk, attribs, chtype);
1151         else
1152                 {
1153                 if (subj)
1154                         i = build_subject(req, subj, chtype, multirdn);
1155                 else
1156                         i = prompt_info(req, dn_sk, dn_sect, attr_sk, attr_sect, attribs, chtype);
1157                 }
1158         if(!i) goto err;
1159
1160         if (!X509_REQ_set_pubkey(req,pkey)) goto err;
1161
1162         ret=1;
1163 err:
1164         return(ret);
1165         }
1166
1167 /*
1168  * subject is expected to be in the format /type0=value0/type1=value1/type2=...
1169  * where characters may be escaped by \
1170  */
1171 static int build_subject(X509_REQ *req, char *subject, unsigned long chtype, int multirdn)
1172         {
1173         X509_NAME *n;
1174
1175         if (!(n = parse_name(subject, chtype, multirdn)))
1176                 return 0;
1177
1178         if (!X509_REQ_set_subject_name(req, n))
1179                 {
1180                 X509_NAME_free(n);
1181                 return 0;
1182                 }
1183         X509_NAME_free(n);
1184         return 1;
1185 }
1186
1187
1188 static int prompt_info(X509_REQ *req,
1189                 STACK_OF(CONF_VALUE) *dn_sk, char *dn_sect,
1190                 STACK_OF(CONF_VALUE) *attr_sk, char *attr_sect, int attribs,
1191                 unsigned long chtype)
1192         {
1193         int i;
1194         char *p,*q;
1195         char buf[100];
1196         int nid, mval;
1197         long n_min,n_max;
1198         char *type, *value;
1199         const char *def;
1200         CONF_VALUE *v;
1201         X509_NAME *subj;
1202         subj = X509_REQ_get_subject_name(req);
1203
1204         if(!batch)
1205                 {
1206                 BIO_printf(bio_err,"You are about to be asked to enter information that will be incorporated\n");
1207                 BIO_printf(bio_err,"into your certificate request.\n");
1208                 BIO_printf(bio_err,"What you are about to enter is what is called a Distinguished Name or a DN.\n");
1209                 BIO_printf(bio_err,"There are quite a few fields but you can leave some blank\n");
1210                 BIO_printf(bio_err,"For some fields there will be a default value,\n");
1211                 BIO_printf(bio_err,"If you enter '.', the field will be left blank.\n");
1212                 BIO_printf(bio_err,"-----\n");
1213                 }
1214
1215
1216         if (sk_CONF_VALUE_num(dn_sk))
1217                 {
1218                 i= -1;
1219 start:          for (;;)
1220                         {
1221                         i++;
1222                         if (sk_CONF_VALUE_num(dn_sk) <= i) break;
1223
1224                         v=sk_CONF_VALUE_value(dn_sk,i);
1225                         p=q=NULL;
1226                         type=v->name;
1227                         if(!check_end(type,"_min") || !check_end(type,"_max") ||
1228                                 !check_end(type,"_default") ||
1229                                          !check_end(type,"_value")) continue;
1230                         /* Skip past any leading X. X: X, etc to allow for
1231                          * multiple instances
1232                          */
1233                         for(p = v->name; *p ; p++)
1234                                 if ((*p == ':') || (*p == ',') ||
1235                                                          (*p == '.')) {
1236                                         p++;
1237                                         if(*p) type = p;
1238                                         break;
1239                                 }
1240                         if (*type == '+')
1241                                 {
1242                                 mval = -1;
1243                                 type++;
1244                                 }
1245                         else
1246                                 mval = 0;
1247                         /* If OBJ not recognised ignore it */
1248                         if ((nid=OBJ_txt2nid(type)) == NID_undef) goto start;
1249                         if (BIO_snprintf(buf,sizeof buf,"%s_default",v->name)
1250                                 >= (int)sizeof(buf))
1251                            {
1252                            BIO_printf(bio_err,"Name '%s' too long\n",v->name);
1253                            return 0;
1254                            }
1255
1256                         if ((def=NCONF_get_string(req_conf,dn_sect,buf)) == NULL)
1257                                 {
1258                                 ERR_clear_error();
1259                                 def="";
1260                                 }
1261
1262                         BIO_snprintf(buf,sizeof buf,"%s_value",v->name);
1263                         if ((value=NCONF_get_string(req_conf,dn_sect,buf)) == NULL)
1264                                 {
1265                                 ERR_clear_error();
1266                                 value=NULL;
1267                                 }
1268
1269                         BIO_snprintf(buf,sizeof buf,"%s_min",v->name);
1270                         if (!NCONF_get_number(req_conf,dn_sect,buf, &n_min))
1271                                 {
1272                                 ERR_clear_error();
1273                                 n_min = -1;
1274                                 }
1275
1276                         BIO_snprintf(buf,sizeof buf,"%s_max",v->name);
1277                         if (!NCONF_get_number(req_conf,dn_sect,buf, &n_max))
1278                                 {
1279                                 ERR_clear_error();
1280                                 n_max = -1;
1281                                 }
1282
1283                         if (!add_DN_object(subj,v->value,def,value,nid,
1284                                 n_min,n_max, chtype, mval))
1285                                 return 0;
1286                         }
1287                 if (X509_NAME_entry_count(subj) == 0)
1288                         {
1289                         BIO_printf(bio_err,"error, no objects specified in config file\n");
1290                         return 0;
1291                         }
1292
1293                 if (attribs)
1294                         {
1295                         if ((attr_sk != NULL) && (sk_CONF_VALUE_num(attr_sk) > 0) && (!batch))
1296                                 {
1297                                 BIO_printf(bio_err,"\nPlease enter the following 'extra' attributes\n");
1298                                 BIO_printf(bio_err,"to be sent with your certificate request\n");
1299                                 }
1300
1301                         i= -1;
1302 start2:                 for (;;)
1303                                 {
1304                                 i++;
1305                                 if ((attr_sk == NULL) ||
1306                                             (sk_CONF_VALUE_num(attr_sk) <= i))
1307                                         break;
1308
1309                                 v=sk_CONF_VALUE_value(attr_sk,i);
1310                                 type=v->name;
1311                                 if ((nid=OBJ_txt2nid(type)) == NID_undef)
1312                                         goto start2;
1313
1314                                 if (BIO_snprintf(buf,sizeof buf,"%s_default",type)
1315                                         >= (int)sizeof(buf))
1316                                    {
1317                                    BIO_printf(bio_err,"Name '%s' too long\n",v->name);
1318                                    return 0;
1319                                    }
1320
1321                                 if ((def=NCONF_get_string(req_conf,attr_sect,buf))
1322                                         == NULL)
1323                                         {
1324                                         ERR_clear_error();
1325                                         def="";
1326                                         }
1327
1328
1329                                 BIO_snprintf(buf,sizeof buf,"%s_value",type);
1330                                 if ((value=NCONF_get_string(req_conf,attr_sect,buf))
1331                                         == NULL)
1332                                         {
1333                                         ERR_clear_error();
1334                                         value=NULL;
1335                                         }
1336
1337                                 BIO_snprintf(buf,sizeof buf,"%s_min",type);
1338                                 if (!NCONF_get_number(req_conf,attr_sect,buf, &n_min))
1339                                         {
1340                                         ERR_clear_error();
1341                                         n_min = -1;
1342                                         }
1343
1344                                 BIO_snprintf(buf,sizeof buf,"%s_max",type);
1345                                 if (!NCONF_get_number(req_conf,attr_sect,buf, &n_max))
1346                                         {
1347                                         ERR_clear_error();
1348                                         n_max = -1;
1349                                         }
1350
1351                                 if (!add_attribute_object(req,
1352                                         v->value,def,value,nid,n_min,n_max, chtype))
1353                                         return 0;
1354                                 }
1355                         }
1356                 }
1357         else
1358                 {
1359                 BIO_printf(bio_err,"No template, please set one up.\n");
1360                 return 0;
1361                 }
1362
1363         return 1;
1364
1365         }
1366
1367 static int auto_info(X509_REQ *req, STACK_OF(CONF_VALUE) *dn_sk,
1368                         STACK_OF(CONF_VALUE) *attr_sk, int attribs, unsigned long chtype)
1369         {
1370         int i;
1371         char *p,*q;
1372         char *type;
1373         CONF_VALUE *v;
1374         X509_NAME *subj;
1375
1376         subj = X509_REQ_get_subject_name(req);
1377
1378         for (i = 0; i < sk_CONF_VALUE_num(dn_sk); i++)
1379                 {
1380                 int mval;
1381                 v=sk_CONF_VALUE_value(dn_sk,i);
1382                 p=q=NULL;
1383                 type=v->name;
1384                 /* Skip past any leading X. X: X, etc to allow for
1385                  * multiple instances
1386                  */
1387                 for(p = v->name; *p ; p++)
1388 #ifndef CHARSET_EBCDIC
1389                         if ((*p == ':') || (*p == ',') || (*p == '.')) {
1390 #else
1391                         if ((*p == os_toascii[':']) || (*p == os_toascii[',']) || (*p == os_toascii['.'])) {
1392 #endif
1393                                 p++;
1394                                 if(*p) type = p;
1395                                 break;
1396                         }
1397 #ifndef CHARSET_EBCDIC
1398                 if (*p == '+')
1399 #else
1400                 if (*p == os_toascii['+'])
1401 #endif
1402                         {
1403                         p++;
1404                         mval = -1;
1405                         }
1406                 else
1407                         mval = 0;
1408                 if (!X509_NAME_add_entry_by_txt(subj,type, chtype,
1409                                 (unsigned char *) v->value,-1,-1,mval)) return 0;
1410
1411                 }
1412
1413                 if (!X509_NAME_entry_count(subj))
1414                         {
1415                         BIO_printf(bio_err,"error, no objects specified in config file\n");
1416                         return 0;
1417                         }
1418                 if (attribs)
1419                         {
1420                         for (i = 0; i < sk_CONF_VALUE_num(attr_sk); i++)
1421                                 {
1422                                 v=sk_CONF_VALUE_value(attr_sk,i);
1423                                 if(!X509_REQ_add1_attr_by_txt(req, v->name, chtype,
1424                                         (unsigned char *)v->value, -1)) return 0;
1425                                 }
1426                         }
1427         return 1;
1428         }
1429
1430
1431 static int add_DN_object(X509_NAME *n, char *text, const char *def, char *value,
1432              int nid, int n_min, int n_max, unsigned long chtype, int mval)
1433         {
1434         int i,ret=0;
1435         MS_STATIC char buf[1024];
1436 start:
1437         if (!batch) BIO_printf(bio_err,"%s [%s]:",text,def);
1438         (void)BIO_flush(bio_err);
1439         if(value != NULL)
1440                 {
1441                 BUF_strlcpy(buf,value,sizeof buf);
1442                 BUF_strlcat(buf,"\n",sizeof buf);
1443                 BIO_printf(bio_err,"%s\n",value);
1444                 }
1445         else
1446                 {
1447                 buf[0]='\0';
1448                 if (!batch)
1449                         {
1450                         if (!fgets(buf,sizeof buf,stdin))
1451                                 return 0;
1452                         }
1453                 else
1454                         {
1455                         buf[0] = '\n';
1456                         buf[1] = '\0';
1457                         }
1458                 }
1459
1460         if (buf[0] == '\0') return(0);
1461         else if (buf[0] == '\n')
1462                 {
1463                 if ((def == NULL) || (def[0] == '\0'))
1464                         return(1);
1465                 BUF_strlcpy(buf,def,sizeof buf);
1466                 BUF_strlcat(buf,"\n",sizeof buf);
1467                 }
1468         else if ((buf[0] == '.') && (buf[1] == '\n')) return(1);
1469
1470         i=strlen(buf);
1471         if (buf[i-1] != '\n')
1472                 {
1473                 BIO_printf(bio_err,"weird input :-(\n");
1474                 return(0);
1475                 }
1476         buf[--i]='\0';
1477 #ifdef CHARSET_EBCDIC
1478         ebcdic2ascii(buf, buf, i);
1479 #endif
1480         if(!req_check_len(i, n_min, n_max))
1481                 {
1482                 if (batch || value)
1483                         return 0;
1484                 goto start;
1485                 }
1486
1487         if (!X509_NAME_add_entry_by_NID(n,nid, chtype,
1488                                 (unsigned char *) buf, -1,-1,mval)) goto err;
1489         ret=1;
1490 err:
1491         return(ret);
1492         }
1493
1494 static int add_attribute_object(X509_REQ *req, char *text, const char *def,
1495                                 char *value, int nid, int n_min,
1496                                 int n_max, unsigned long chtype)
1497         {
1498         int i;
1499         static char buf[1024];
1500
1501 start:
1502         if (!batch) BIO_printf(bio_err,"%s [%s]:",text,def);
1503         (void)BIO_flush(bio_err);
1504         if (value != NULL)
1505                 {
1506                 BUF_strlcpy(buf,value,sizeof buf);
1507                 BUF_strlcat(buf,"\n",sizeof buf);
1508                 BIO_printf(bio_err,"%s\n",value);
1509                 }
1510         else
1511                 {
1512                 buf[0]='\0';
1513                 if (!batch)
1514                         {
1515                         if (!fgets(buf,sizeof buf,stdin))
1516                                 return 0;
1517                         }
1518                 else
1519                         {
1520                         buf[0] = '\n';
1521                         buf[1] = '\0';
1522                         }
1523                 }
1524
1525         if (buf[0] == '\0') return(0);
1526         else if (buf[0] == '\n')
1527                 {
1528                 if ((def == NULL) || (def[0] == '\0'))
1529                         return(1);
1530                 BUF_strlcpy(buf,def,sizeof buf);
1531                 BUF_strlcat(buf,"\n",sizeof buf);
1532                 }
1533         else if ((buf[0] == '.') && (buf[1] == '\n')) return(1);
1534
1535         i=strlen(buf);
1536         if (buf[i-1] != '\n')
1537                 {
1538                 BIO_printf(bio_err,"weird input :-(\n");
1539                 return(0);
1540                 }
1541         buf[--i]='\0';
1542 #ifdef CHARSET_EBCDIC
1543         ebcdic2ascii(buf, buf, i);
1544 #endif
1545         if(!req_check_len(i, n_min, n_max))
1546                 {
1547                 if (batch || value)
1548                         return 0;
1549                 goto start;
1550                 }
1551
1552         if(!X509_REQ_add1_attr_by_NID(req, nid, chtype,
1553                                         (unsigned char *)buf, -1)) {
1554                 BIO_printf(bio_err, "Error adding attribute\n");
1555                 ERR_print_errors(bio_err);
1556                 goto err;
1557         }
1558
1559         return(1);
1560 err:
1561         return(0);
1562         }
1563
1564 static int req_check_len(int len, int n_min, int n_max)
1565         {
1566         if ((n_min > 0) && (len < n_min))
1567                 {
1568                 BIO_printf(bio_err,"string is too short, it needs to be at least %d bytes long\n",n_min);
1569                 return(0);
1570                 }
1571         if ((n_max >= 0) && (len > n_max))
1572                 {
1573                 BIO_printf(bio_err,"string is too long, it needs to be less than  %d bytes long\n",n_max);
1574                 return(0);
1575                 }
1576         return(1);
1577         }
1578
1579 /* Check if the end of a string matches 'end' */
1580 static int check_end(const char *str, const char *end)
1581 {
1582         int elen, slen;
1583         const char *tmp;
1584         elen = strlen(end);
1585         slen = strlen(str);
1586         if(elen > slen) return 1;
1587         tmp = str + slen - elen;
1588         return strcmp(tmp, end);
1589 }
1590
1591 static EVP_PKEY_CTX *set_keygen_ctx(BIO *err, const char *gstr, int *pkey_type,
1592                                         long *pkeylen, char **palgnam,
1593                                         ENGINE *keygen_engine)
1594         {
1595         EVP_PKEY_CTX *gctx = NULL;
1596         EVP_PKEY *param = NULL;
1597         long keylen = -1;
1598         BIO *pbio = NULL;
1599         const char *paramfile = NULL;
1600
1601         if (gstr == NULL)
1602                 {
1603                 *pkey_type = EVP_PKEY_RSA;
1604                 keylen = *pkeylen;
1605                 }
1606         else if (gstr[0] >= '0' && gstr[0] <= '9')
1607                 {
1608                 *pkey_type = EVP_PKEY_RSA;
1609                 keylen = atol(gstr);
1610                 *pkeylen = keylen;
1611                 }
1612         else if (!strncmp(gstr, "param:", 6))
1613                 paramfile = gstr + 6;
1614         else
1615                 {
1616                 const char *p = strchr(gstr, ':');
1617                 int len;
1618                 ENGINE *tmpeng;
1619                 const EVP_PKEY_ASN1_METHOD *ameth;
1620
1621                 if (p)
1622                         len = p - gstr;
1623                 else
1624                         len = strlen(gstr);
1625                 /* The lookup of a the string will cover all engines so
1626                  * keep a note of the implementation.
1627                  */
1628
1629                 ameth = EVP_PKEY_asn1_find_str(&tmpeng, gstr, len);
1630
1631                 if (!ameth)
1632                         {
1633                         BIO_printf(err, "Unknown algorithm %.*s\n", len, gstr);
1634                         return NULL;
1635                         }
1636
1637                 EVP_PKEY_asn1_get0_info(NULL, pkey_type, NULL, NULL, NULL,
1638                                                                         ameth);
1639 #ifndef OPENSSL_NO_ENGINE
1640                 if (tmpeng)
1641                         ENGINE_finish(tmpeng);
1642 #endif
1643                 if (*pkey_type == EVP_PKEY_RSA)
1644                         {
1645                         if (p)
1646                                 {
1647                                 keylen = atol(p + 1);
1648                                 *pkeylen = keylen;
1649                                 }
1650                         else
1651                                 keylen = *pkeylen;
1652                         }
1653                 else if (p)
1654                         paramfile = p + 1;
1655                 }
1656
1657         if (paramfile)
1658                 {
1659                 pbio = BIO_new_file(paramfile, "r");
1660                 if (!pbio)
1661                         {
1662                         BIO_printf(err, "Can't open parameter file %s\n",
1663                                         paramfile);
1664                         return NULL;
1665                         }
1666                 param = PEM_read_bio_Parameters(pbio, NULL);
1667
1668                 if (!param)
1669                         {
1670                         X509 *x;
1671                         (void)BIO_reset(pbio);
1672                         x = PEM_read_bio_X509(pbio, NULL, NULL, NULL);
1673                         if (x)
1674                                 {
1675                                 param = X509_get_pubkey(x);
1676                                 X509_free(x);
1677                                 }
1678                         }
1679
1680                 BIO_free(pbio);
1681
1682                 if (!param)
1683                         {
1684                         BIO_printf(err, "Error reading parameter file %s\n",
1685                                         paramfile);
1686                         return NULL;
1687                         }
1688                 if (*pkey_type == -1)
1689                         *pkey_type = EVP_PKEY_id(param);
1690                 else if (*pkey_type != EVP_PKEY_base_id(param))
1691                         {
1692                         BIO_printf(err, "Key Type does not match parameters\n");
1693                         EVP_PKEY_free(param);
1694                         return NULL;
1695                         }
1696                 }
1697
1698         if (palgnam)
1699                 {
1700                 const EVP_PKEY_ASN1_METHOD *ameth;
1701                 ENGINE *tmpeng;
1702                 const char *anam;
1703                 ameth = EVP_PKEY_asn1_find(&tmpeng, *pkey_type);
1704                 if (!ameth)
1705                         {
1706                         BIO_puts(err, "Internal error: can't find key algorithm\n");
1707                         return NULL;
1708                         }
1709                 EVP_PKEY_asn1_get0_info(NULL, NULL, NULL, NULL, &anam, ameth);
1710                 *palgnam = BUF_strdup(anam);
1711 #ifndef OPENSSL_NO_ENGINE
1712                 if (tmpeng)
1713                         ENGINE_finish(tmpeng);
1714 #endif
1715                 }
1716
1717         if (param)
1718                 {
1719                 gctx = EVP_PKEY_CTX_new(param, keygen_engine);
1720                 *pkeylen = EVP_PKEY_bits(param);
1721                 EVP_PKEY_free(param);
1722                 }
1723         else
1724                 gctx = EVP_PKEY_CTX_new_id(*pkey_type, keygen_engine);
1725
1726         if (!gctx)
1727                 {
1728                 BIO_puts(err, "Error allocating keygen context\n");
1729                 ERR_print_errors(err);
1730                 return NULL;
1731                 }
1732
1733         if (EVP_PKEY_keygen_init(gctx) <= 0)
1734                 {
1735                 BIO_puts(err, "Error initializing keygen context\n");
1736                 ERR_print_errors(err);
1737                 return NULL;
1738                 }
1739 #ifndef OPENSSL_NO_RSA
1740         if ((*pkey_type == EVP_PKEY_RSA) && (keylen != -1))
1741                 {
1742                 if (EVP_PKEY_CTX_set_rsa_keygen_bits(gctx, keylen) <= 0)
1743                         {
1744                         BIO_puts(err, "Error setting RSA keysize\n");
1745                         ERR_print_errors(err);
1746                         EVP_PKEY_CTX_free(gctx);
1747                         return NULL;
1748                         }
1749                 }
1750 #endif
1751
1752         return gctx;
1753         }
1754
1755 static int genpkey_cb(EVP_PKEY_CTX *ctx)
1756         {
1757         char c='*';
1758         BIO *b = EVP_PKEY_CTX_get_app_data(ctx);
1759         int p;
1760         p = EVP_PKEY_CTX_get_keygen_info(ctx, 0);
1761         if (p == 0) c='.';
1762         if (p == 1) c='+';
1763         if (p == 2) c='*';
1764         if (p == 3) c='\n';
1765         BIO_write(b,&c,1);
1766         (void)BIO_flush(b);
1767 #ifdef LINT
1768         p=n;
1769 #endif
1770         return 1;
1771         }