apps/srp.c

   1 /* apps/srp.c */
   2 /* Written by Peter Sylvester (peter.sylvester@edelweb.fr)
   3  * for the EdelKey project and contributed to the OpenSSL project 2004.
   4  */
   5 /* ====================================================================
   6  * Copyright (c) 2004 The OpenSSL Project.  All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  *
  12  * 1. Redistributions of source code must retain the above copyright
  13  *    notice, this list of conditions and the following disclaimer.
  14  *
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in
  17  *    the documentation and/or other materials provided with the
  18  *    distribution.
  19  *
  20  * 3. All advertising materials mentioning features or use of this
  21  *    software must display the following acknowledgment:
  22  *    "This product includes software developed by the OpenSSL Project
  23  *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
  24  *
  25  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
  26  *    endorse or promote products derived from this software without
  27  *    prior written permission. For written permission, please contact
  28  *    licensing@OpenSSL.org.
  29  *
  30  * 5. Products derived from this software may not be called "OpenSSL"
  31  *    nor may "OpenSSL" appear in their names without prior written
  32  *    permission of the OpenSSL Project.
  33  *
  34  * 6. Redistributions of any form whatsoever must retain the following
  35  *    acknowledgment:
  36  *    "This product includes software developed by the OpenSSL Project
  37  *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
  38  *
  39  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
  40  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  41  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  42  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
  43  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  44  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  45  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  46  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  47  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  48  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  49  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
  50  * OF THE POSSIBILITY OF SUCH DAMAGE.
  51  * ====================================================================
  52  *
  53  * This product includes cryptographic software written by Eric Young
  54  * (eay@cryptsoft.com).  This product includes software written by Tim
  55  * Hudson (tjh@cryptsoft.com).
  56  *
  57  */
  58 #include <openssl/opensslconf.h>
  59
  60 #ifndef OPENSSL_NO_SRP
  61 #include <stdio.h>
  62 #include <stdlib.h>
  63 #include <string.h>
  64 #include <openssl/conf.h>
  65 #include <openssl/bio.h>
  66 #include <openssl/err.h>
  67 #include <openssl/txt_db.h>
  68 #include <openssl/buffer.h>
  69 #include <openssl/srp.h>
  70
  71 #include "apps.h"
  72
  73 #undef PROG
  74 #define PROG srp_main
  75
  76 #define BASE_SECTION    "srp"
  77 #define CONFIG_FILE "openssl.cnf"
  78
  79 #define ENV_RANDFILE            "RANDFILE"
  80
  81 #define ENV_DATABASE            "srpvfile"
  82 #define ENV_DEFAULT_SRP         "default_srp"
  83
  84 static char *srp_usage[]={
  85 "usage: srp [args] [user] \n",
  86 "\n",
  87 " -verbose        Talk alot while doing things\n",
  88 " -config file    A config file\n",
  89 " -name arg       The particular srp definition to use\n",
  90 " -srpvfile arg   The srp verifier file name\n",
  91 " -add            add an user and srp verifier\n",
  92 " -modify         modify the srp verifier of an existing user\n",
  93 " -delete         delete user from verifier file\n",
  94 " -list           list user\n",
  95 " -gn arg         g and N values to be used for new verifier\n",
  96 " -userinfo arg   additional info to be set for user\n",
  97 " -passin arg     input file pass phrase source\n",
  98 " -passout arg    output file pass phrase source\n",
  99 #ifndef OPENSSL_NO_ENGINE
 100 " -engine e         - use engine e, possibly a hardware device.\n",
 101 #endif
 102 NULL
 103 };
 104
 105 #ifdef EFENCE
 106 extern int EF_PROTECT_FREE;
 107 extern int EF_PROTECT_BELOW;
 108 extern int EF_ALIGNMENT;
 109 #endif
 110
 111 static CONF *conf=NULL;
 112 static char *section=NULL;
 113
 114 #define VERBOSE if (verbose)
 115 #define VVERBOSE if (verbose>1)
 116
 117
 118 int MAIN(int, char **);
 119
 120 static int get_index(CA_DB *db, char* id, char type)
 121         {
 122         char ** pp;
 123         int i;
 124         if (id == NULL) return -1;
 125         if (type == DB_SRP_INDEX)
 126         for (i = 0; i < sk_OPENSSL_PSTRING_num(db->db->data); i++)
 127                 {
 128                 pp = sk_OPENSSL_PSTRING_value(db->db->data,i);
 129                 if (pp[DB_srptype][0] == DB_SRP_INDEX  && !strcmp(id,pp[DB_srpid]))
 130                         return i;
 131                 }
 132         else for (i = 0; i < sk_OPENSSL_PSTRING_num(db->db->data); i++)
 133                 {
 134                 pp = sk_OPENSSL_PSTRING_value(db->db->data,i);
 135
 136                 if (pp[DB_srptype][0] != DB_SRP_INDEX && !strcmp(id,pp[DB_srpid]))
 137                         return i;
 138                 }
 139
 140         return -1 ;
 141         }
 142
 143 static void print_entry(CA_DB *db, BIO *bio, int indx, int verbose, char *s)
 144         {
 145         if (indx >= 0 && verbose)
 146                 {
 147                 int j;
 148                 char **pp = sk_OPENSSL_PSTRING_value(db->db->data, indx);
 149                 BIO_printf(bio, "%s \"%s\"\n", s, pp[DB_srpid]);
 150                 for (j = 0; j < DB_NUMBER; j++)
 151                         {
 152                         BIO_printf(bio_err,"  %d = \"%s\"\n", j, pp[j]);
 153                         }
 154                 }
 155         }
 156
 157 static void print_index(CA_DB *db, BIO *bio, int indexindex, int verbose)
 158         {
 159         print_entry(db, bio, indexindex, verbose, "g N entry") ;
 160         }
 161
 162 static void print_user(CA_DB *db, BIO *bio, int userindex, int verbose)
 163         {
 164         if (verbose > 0)
 165                 {
 166                 char **pp = sk_OPENSSL_PSTRING_value(db->db->data,userindex);
 167
 168                 if (pp[DB_srptype][0] != 'I')
 169                         {
 170                         print_entry(db, bio, userindex, verbose, "User entry");
 171                         print_entry(db, bio, get_index(db, pp[DB_srpgN], 'I'), verbose, "g N entry");
 172                         }
 173
 174                 }
 175         }
 176
 177 static int update_index(CA_DB *db, BIO *bio, char **row)
 178         {
 179         char ** irow;
 180         int i;
 181
 182         if ((irow=(char **)OPENSSL_malloc(sizeof(char *)*(DB_NUMBER+1))) == NULL)
 183                 {
 184                 BIO_printf(bio_err,"Memory allocation failure\n");
 185                 return 0;
 186                 }
 187
 188         for (i=0; i<DB_NUMBER; i++)
 189                 {
 190                 irow[i]=row[i];
 191                 row[i]=NULL;
 192                 }
 193         irow[DB_NUMBER]=NULL;
 194
 195         if (!TXT_DB_insert(db->db,irow))
 196                 {
 197                 BIO_printf(bio,"failed to update srpvfile\n");
 198                 BIO_printf(bio,"TXT_DB error number %ld\n",db->db->error);
 199                 OPENSSL_free(irow);
 200                 return 0;
 201                 }
 202         return 1;
 203         }
 204
 205 static void lookup_fail(const char *name, const char *tag)
 206         {
 207         BIO_printf(bio_err,"variable lookup failed for %s::%s\n",name,tag);
 208         }
 209
 210
 211 static char *srp_verify_user(const char *user, const char *srp_verifier,
 212                              char *srp_usersalt, const char *g, const char *N,
 213                              const char *passin, BIO *bio, int verbose)
 214         {
 215         char password[1024];
 216         PW_CB_DATA cb_tmp;
 217         char *verifier = NULL;
 218         char *gNid = NULL;
 219
 220         cb_tmp.prompt_info = user;
 221         cb_tmp.password = passin;
 222
 223         if (password_callback(password, 1024, 0, &cb_tmp) >0)
 224                 {
 225                 VERBOSE BIO_printf(bio,"Validating\n   user=\"%s\"\n srp_verifier=\"%s\"\n srp_usersalt=\"%s\"\n g=\"%s\"\n N=\"%s\"\n",user,srp_verifier,srp_usersalt, g, N);
 226                 BIO_printf(bio, "Pass %s\n", password);
 227
 228                 OPENSSL_assert(srp_usersalt != NULL);
 229                 if (!(gNid=SRP_create_verifier(user, password, &srp_usersalt, &verifier,
 230                                                                            N, g)))
 231                         {
 232                         BIO_printf(bio, "Internal error validating SRP verifier\n");
 233                         }
 234                 else
 235                         {
 236                         if (strcmp(verifier, srp_verifier))
 237                                 gNid = NULL;
 238                         OPENSSL_free(verifier);
 239                         }
 240                 }
 241         return gNid;
 242         }
 243
 244 static char *srp_create_user(char *user, char **srp_verifier,
 245                              char **srp_usersalt, char *g, char *N,
 246                              char *passout, BIO *bio, int verbose)
 247         {
 248         char password[1024];
 249         PW_CB_DATA cb_tmp;
 250         char *gNid = NULL;
 251         char *salt = NULL;
 252         cb_tmp.prompt_info = user;
 253         cb_tmp.password = passout;
 254
 255         if (password_callback(password,1024,1,&cb_tmp) >0)
 256                 {
 257                 VERBOSE BIO_printf(bio,"Creating\n user=\"%s\"\n g=\"%s\"\n N=\"%s\"\n",user,g,N);
 258                 if (!(gNid =SRP_create_verifier(user, password, &salt, srp_verifier, N, g)))
 259                         {
 260                         BIO_printf(bio,"Internal error creating SRP verifier\n");
 261                         }
 262                 else
 263                         *srp_usersalt = salt;
 264                 VVERBOSE BIO_printf(bio,"gNid=%s salt =\"%s\"\n verifier =\"%s\"\n", gNid,salt, *srp_verifier);
 265
 266                 }
 267         return gNid;
 268         }
 269
 270 int MAIN(int argc, char **argv)
 271         {
 272         int add_user = 0;
 273         int list_user= 0;
 274         int delete_user= 0;
 275         int modify_user= 0;
 276         char * user = NULL;
 277
 278         char *passargin = NULL, *passargout = NULL;
 279         char *passin = NULL, *passout = NULL;
 280         char * gN = NULL;
 281         int gNindex = -1;
 282         char ** gNrow = NULL;
 283         int maxgN = -1;
 284
 285         char * userinfo = NULL;
 286
 287         int badops=0;
 288         int ret=1;
 289         int errors=0;
 290         int verbose=0;
 291         int doupdatedb=0;
 292         char *configfile=NULL;
 293         char *dbfile=NULL;
 294         CA_DB *db=NULL;
 295         char **pp ;
 296         int i;
 297         long errorline = -1;
 298         char *randfile=NULL;
 299 #ifndef OPENSSL_NO_ENGINE
 300         char *engine = NULL;
 301 #endif
 302         char *tofree=NULL;
 303         DB_ATTR db_attr;
 304
 305 #ifdef EFENCE
 306 EF_PROTECT_FREE=1;
 307 EF_PROTECT_BELOW=1;
 308 EF_ALIGNMENT=0;
 309 #endif
 310
 311         apps_startup();
 312
 313         conf = NULL;
 314         section = NULL;
 315
 316         if (bio_err == NULL)
 317                 if ((bio_err=BIO_new(BIO_s_file())) != NULL)
 318                         BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);
 319
 320         argc--;
 321         argv++;
 322         while (argc >= 1 && badops == 0)
 323                 {
 324                 if      (strcmp(*argv,"-verbose") == 0)
 325                         verbose++;
 326                 else if (strcmp(*argv,"-config") == 0)
 327                         {
 328                         if (--argc < 1) goto bad;
 329                         configfile= *(++argv);
 330                         }
 331                 else if (strcmp(*argv,"-name") == 0)
 332                         {
 333                         if (--argc < 1) goto bad;
 334                         section= *(++argv);
 335                         }
 336                 else if (strcmp(*argv,"-srpvfile") == 0)
 337                         {
 338                         if (--argc < 1) goto bad;
 339                         dbfile= *(++argv);
 340                         }
 341                 else if (strcmp(*argv,"-add") == 0)
 342                         add_user=1;
 343                 else if (strcmp(*argv,"-delete") == 0)
 344                         delete_user=1;
 345                 else if (strcmp(*argv,"-modify") == 0)
 346                         modify_user=1;
 347                 else if (strcmp(*argv,"-list") == 0)
 348                         list_user=1;
 349                 else if (strcmp(*argv,"-gn") == 0)
 350                         {
 351                         if (--argc < 1) goto bad;
 352                         gN= *(++argv);
 353                         }
 354                 else if (strcmp(*argv,"-userinfo") == 0)
 355                         {
 356                         if (--argc < 1) goto bad;
 357                         userinfo= *(++argv);
 358                         }
 359                 else if (strcmp(*argv,"-passin") == 0)
 360                         {
 361                         if (--argc < 1) goto bad;
 362                         passargin= *(++argv);
 363                         }
 364                 else if (strcmp(*argv,"-passout") == 0)
 365                         {
 366                         if (--argc < 1) goto bad;
 367                         passargout= *(++argv);
 368                         }
 369 #ifndef OPENSSL_NO_ENGINE
 370                 else if (strcmp(*argv,"-engine") == 0)
 371                         {
 372                         if (--argc < 1) goto bad;
 373                         engine= *(++argv);
 374                         }
 375 #endif
 376
 377                 else if (**argv == '-')
 378                         {
 379 bad:
 380                         BIO_printf(bio_err,"unknown option %s\n",*argv);
 381                         badops=1;
 382                         break;
 383                         }
 384                 else
 385                         break;
 386
 387                 argc--;
 388                 argv++;
 389                 }
 390
 391         if (dbfile && configfile)
 392                 {
 393                 BIO_printf(bio_err,"-dbfile and -configfile cannot be specified together.\n");
 394                 badops = 1;
 395                 }
 396         if (add_user+delete_user+modify_user+list_user != 1)
 397                 {
 398                 BIO_printf(bio_err,"Exactly one of the options -add, -delete, -modify -list must be specified.\n");
 399                 badops = 1;
 400                 }
 401         if (delete_user+modify_user+delete_user== 1 && argc <= 0)
 402                 {
 403                 BIO_printf(bio_err,"Need at least one user for options -add, -delete, -modify. \n");
 404                 badops = 1;
 405                 }
 406         if ((passin || passout) && argc != 1 )
 407                 {
 408                 BIO_printf(bio_err,"-passin, -passout arguments only valid with one user.\n");
 409                 badops = 1;
 410                 }
 411
 412         if (badops)
 413                 {
 414                 for (pp=srp_usage; (*pp != NULL); pp++)
 415                         BIO_printf(bio_err,"%s",*pp);
 416
 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                 goto err;
 421                 }
 422
 423         ERR_load_crypto_strings();
 424
 425 #ifndef OPENSSL_NO_ENGINE
 426         setup_engine(bio_err, engine, 0);
 427 #endif
 428
 429         if(!app_passwd(bio_err, passargin, passargout, &passin, &passout))
 430                 {
 431                 BIO_printf(bio_err, "Error getting passwords\n");
 432                 goto err;
 433                 }
 434
 435         if (!dbfile)
 436                 {
 437
 438
 439         /*****************************************************************/
 440                 tofree=NULL;
 441                 if (configfile == NULL) configfile = getenv("OPENSSL_CONF");
 442                 if (configfile == NULL) configfile = getenv("SSLEAY_CONF");
 443                 if (configfile == NULL)
 444                         {
 445                         const char *s=X509_get_default_cert_area();
 446                         size_t len;
 447
 448 #ifdef OPENSSL_SYS_VMS
 449                         len = strlen(s)+sizeof(CONFIG_FILE);
 450                         tofree=OPENSSL_malloc(len);
 451                         strcpy(tofree,s);
 452 #else
 453                         len = strlen(s)+sizeof(CONFIG_FILE)+1;
 454                         tofree=OPENSSL_malloc(len);
 455                         BUF_strlcpy(tofree,s,len);
 456                         BUF_strlcat(tofree,"/",len);
 457 #endif
 458                         BUF_strlcat(tofree,CONFIG_FILE,len);
 459                         configfile=tofree;
 460                         }
 461
 462                 VERBOSE BIO_printf(bio_err,"Using configuration from %s\n",configfile);
 463                 conf = NCONF_new(NULL);
 464                 if (NCONF_load(conf,configfile,&errorline) <= 0)
 465                         {
 466                         if (errorline <= 0)
 467                                 BIO_printf(bio_err,"error loading the config file '%s'\n",
 468                                         configfile);
 469                         else
 470                                 BIO_printf(bio_err,"error on line %ld of config file '%s'\n"
 471                                         ,errorline,configfile);
 472                         goto err;
 473                         }
 474                 if(tofree)
 475                         {
 476                         OPENSSL_free(tofree);
 477                         tofree = NULL;
 478                         }
 479
 480                 if (!load_config(bio_err, conf))
 481                         goto err;
 482
 483         /* Lets get the config section we are using */
 484                 if (section == NULL)
 485                         {
 486                         VERBOSE BIO_printf(bio_err,"trying to read " ENV_DEFAULT_SRP " in \" BASE_SECTION \"\n");
 487
 488                         section=NCONF_get_string(conf,BASE_SECTION,ENV_DEFAULT_SRP);
 489                         if (section == NULL)
 490                                 {
 491                                 lookup_fail(BASE_SECTION,ENV_DEFAULT_SRP);
 492                                 goto err;
 493                                 }
 494                         }
 495
 496                 if (randfile == NULL && conf)
 497                         randfile = NCONF_get_string(conf, BASE_SECTION, "RANDFILE");
 498
 499
 500                 VERBOSE BIO_printf(bio_err,"trying to read " ENV_DATABASE " in section \"%s\"\n",section);
 501
 502                 if ((dbfile=NCONF_get_string(conf,section,ENV_DATABASE)) == NULL)
 503                         {
 504                         lookup_fail(section,ENV_DATABASE);
 505                         goto err;
 506                         }
 507
 508                 }
 509         if (randfile == NULL)
 510                 ERR_clear_error();
 511         else
 512                 app_RAND_load_file(randfile, bio_err, 0);
 513
 514         VERBOSE BIO_printf(bio_err,"Trying to read SRP verifier file \"%s\"\n",dbfile);
 515
 516         db = load_index(dbfile, &db_attr);
 517         if (db == NULL) goto err;
 518
 519         /* Lets check some fields */
 520         for (i = 0; i < sk_OPENSSL_PSTRING_num(db->db->data); i++)
 521                 {
 522                 pp = sk_OPENSSL_PSTRING_value(db->db->data, i);
 523
 524                 if (pp[DB_srptype][0] == DB_SRP_INDEX)
 525                         {
 526                         maxgN = i;
 527                         if (gNindex < 0 && gN != NULL && !strcmp(gN, pp[DB_srpid]))
 528                                 gNindex = i;
 529
 530                         print_index(db, bio_err, i, verbose > 1);
 531                         }
 532                 }
 533
 534         VERBOSE BIO_printf(bio_err, "Database initialised\n");
 535
 536         if (gNindex >= 0)
 537                 {
 538                 gNrow = sk_OPENSSL_PSTRING_value(db->db->data,gNindex);
 539                 print_entry(db, bio_err, gNindex, verbose > 1, "Default g and N");
 540                 }
 541         else if (maxgN > 0 && !SRP_get_default_gN(gN))
 542                 {
 543                 BIO_printf(bio_err, "No g and N value for index \"%s\"\n", gN);
 544                 goto err;
 545                 }
 546         else
 547                 {
 548                 VERBOSE BIO_printf(bio_err, "Database has no g N information.\n");
 549                 gNrow = NULL;
 550                 }
 551
 552
 553         VVERBOSE BIO_printf(bio_err,"Starting user processing\n");
 554
 555         if (argc > 0)
 556                 user = *(argv++) ;
 557
 558         while (list_user || user)
 559                 {
 560                 int userindex = -1;
 561                 if (user)
 562                         VVERBOSE BIO_printf(bio_err, "Processing user \"%s\"\n", user);
 563                 if ((userindex = get_index(db, user, 'U')) >= 0)
 564                         {
 565                         print_user(db, bio_err, userindex, (verbose > 0) || list_user);
 566                         }
 567
 568                 if (list_user)
 569                         {
 570                         if (user == NULL)
 571                                 {
 572                                 BIO_printf(bio_err,"List all users\n");
 573
 574                                 for (i = 0; i < sk_OPENSSL_PSTRING_num(db->db->data); i++)
 575                                         {
 576                                         print_user(db,bio_err, i, 1);
 577                                         }
 578                                 list_user = 0;
 579                                 }
 580                         else if (userindex < 0)
 581                                 {
 582                                 BIO_printf(bio_err, "user \"%s\" does not exist, ignored. t\n",
 583                                            user);
 584                                 errors++;
 585                                 }
 586                         }
 587                 else if (add_user)
 588                         {
 589                         if (userindex >= 0)
 590                                 {
 591                                 /* reactivation of a new user */
 592                                 char **row = sk_OPENSSL_PSTRING_value(db->db->data, userindex);
 593                                 BIO_printf(bio_err, "user \"%s\" reactivated.\n", user);
 594                                 row[DB_srptype][0] = 'V';
 595
 596                                 doupdatedb = 1;
 597                                 }
 598                         else
 599                                 {
 600                                 char *row[DB_NUMBER] ; char *gNid;
 601                                 row[DB_srpverifier] = NULL;
 602                                 row[DB_srpsalt] = NULL;
 603                                 row[DB_srpinfo] = NULL;
 604                                 if (!(gNid = srp_create_user(user,&(row[DB_srpverifier]), &(row[DB_srpsalt]),gNrow?gNrow[DB_srpsalt]:gN,gNrow?gNrow[DB_srpverifier]:NULL, passout, bio_err,verbose)))
 605                                         {
 606                                                 BIO_printf(bio_err, "Cannot create srp verifier for user \"%s\", operation abandoned .\n", user);
 607                                                 errors++;
 608                                                 goto err;
 609                                         }
 610                                 row[DB_srpid] = BUF_strdup(user);
 611                                 row[DB_srptype] = BUF_strdup("v");
 612                                 row[DB_srpgN] = BUF_strdup(gNid);
 613
 614                                 if (!row[DB_srpid] || !row[DB_srpgN] || !row[DB_srptype] || !row[DB_srpverifier] || !row[DB_srpsalt] ||
 615                                         (userinfo && (!(row[DB_srpinfo] = BUF_strdup(userinfo)))) ||
 616                                         !update_index(db, bio_err, row))
 617                                         {
 618                                         if (row[DB_srpid]) OPENSSL_free(row[DB_srpid]);
 619                                         if (row[DB_srpgN]) OPENSSL_free(row[DB_srpgN]);
 620                                         if (row[DB_srpinfo]) OPENSSL_free(row[DB_srpinfo]);
 621                                         if (row[DB_srptype]) OPENSSL_free(row[DB_srptype]);
 622                                         if (row[DB_srpverifier]) OPENSSL_free(row[DB_srpverifier]);
 623                                         if (row[DB_srpsalt]) OPENSSL_free(row[DB_srpsalt]);
 624                                         goto err;
 625                                         }
 626                                 doupdatedb = 1;
 627                                 }
 628                         }
 629                 else if (modify_user)
 630                         {
 631                         if (userindex < 0)
 632                                 {
 633                                 BIO_printf(bio_err,"user \"%s\" does not exist, operation ignored.\n",user);
 634                                 errors++;
 635                                 }
 636                         else
 637                                 {
 638
 639                                 char **row = sk_OPENSSL_PSTRING_value(db->db->data, userindex);
 640                                 char type = row[DB_srptype][0];
 641                                 if (type == 'v')
 642                                         {
 643                                         BIO_printf(bio_err,"user \"%s\" already updated, operation ignored.\n",user);
 644                                         errors++;
 645                                         }
 646                                 else
 647                                         {
 648                                         char *gNid;
 649
 650                                         if (row[DB_srptype][0] == 'V')
 651                                                 {
 652                                                 int user_gN;
 653                                                 char **irow = NULL;
 654                                                 VERBOSE BIO_printf(bio_err,"Verifying password for user \"%s\"\n",user);
 655                                                 if ( (user_gN = get_index(db, row[DB_srpgN], DB_SRP_INDEX)) >= 0)
 656                                                         irow = sk_OPENSSL_PSTRING_value(db->db->data, userindex);
 657
 658                                                 if (!srp_verify_user(user, row[DB_srpverifier], row[DB_srpsalt], irow ? irow[DB_srpsalt] : row[DB_srpgN], irow ? irow[DB_srpverifier] : NULL, passin, bio_err, verbose))
 659                                                         {
 660                                                         BIO_printf(bio_err, "Invalid password for user \"%s\", operation abandoned.\n", user);
 661                                                         errors++;
 662                                                         goto err;
 663                                                         }
 664                                                 }
 665                                         VERBOSE BIO_printf(bio_err,"Password for user \"%s\" ok.\n",user);
 666
 667                                         if (!(gNid=srp_create_user(user,&(row[DB_srpverifier]), &(row[DB_srpsalt]),gNrow?gNrow[DB_srpsalt]:NULL, gNrow?gNrow[DB_srpverifier]:NULL, passout, bio_err,verbose)))
 668                                                 {
 669                                                 BIO_printf(bio_err, "Cannot create srp verifier for user \"%s\", operation abandoned.\n", user);
 670                                                 errors++;
 671                                                 goto err;
 672                                                 }
 673
 674                                         row[DB_srptype][0] = 'v';
 675                                         row[DB_srpgN] = BUF_strdup(gNid);
 676
 677                                         if (!row[DB_srpid] || !row[DB_srpgN] || !row[DB_srptype] || !row[DB_srpverifier] || !row[DB_srpsalt] ||
 678                                                 (userinfo && (!(row[DB_srpinfo] = BUF_strdup(userinfo)))))
 679                                                 goto err;
 680
 681                                         doupdatedb = 1;
 682                                         }
 683                                 }
 684                         }
 685                 else if (delete_user)
 686                         {
 687                         if (userindex < 0)
 688                                 {
 689                                 BIO_printf(bio_err, "user \"%s\" does not exist, operation ignored. t\n", user);
 690                                 errors++;
 691                                 }
 692                         else
 693                                 {
 694                                 char **xpp = sk_OPENSSL_PSTRING_value(db->db->data,userindex);
 695                                 BIO_printf(bio_err, "user \"%s\" revoked. t\n", user);
 696
 697                                 xpp[DB_srptype][0] = 'R';
 698
 699                                 doupdatedb = 1;
 700                                 }
 701                         }
 702                 if (--argc > 0)
 703                         user = *(argv++) ;
 704                 else
 705                         {
 706                         user = NULL;
 707                         list_user = 0;
 708                         }
 709                 }
 710
 711         VERBOSE BIO_printf(bio_err,"User procession done.\n");
 712
 713
 714         if (doupdatedb)
 715                 {
 716                 /* Lets check some fields */
 717                 for (i = 0; i < sk_OPENSSL_PSTRING_num(db->db->data); i++)
 718                         {
 719                         pp = sk_OPENSSL_PSTRING_value(db->db->data,i);
 720
 721                         if (pp[DB_srptype][0] == 'v')
 722                                 {
 723                                 pp[DB_srptype][0] = 'V';
 724                                 print_user(db, bio_err, i, verbose);
 725                                 }
 726                         }
 727
 728                 VERBOSE BIO_printf(bio_err, "Trying to update srpvfile.\n");
 729                 if (!save_index(dbfile, "new", db)) goto err;
 730
 731                 VERBOSE BIO_printf(bio_err, "Temporary srpvfile created.\n");
 732                 if (!rotate_index(dbfile, "new", "old")) goto err;
 733
 734                 VERBOSE BIO_printf(bio_err, "srpvfile updated.\n");
 735                 }
 736
 737         ret = (errors != 0);
 738 err:
 739         if (errors != 0)
 740         VERBOSE BIO_printf(bio_err,"User errors %d.\n",errors);
 741
 742         VERBOSE BIO_printf(bio_err,"SRP terminating with code %d.\n",ret);
 743         if(tofree)
 744                 OPENSSL_free(tofree);
 745         if (ret) ERR_print_errors(bio_err);
 746         if (randfile) app_RAND_write_file(randfile, bio_err);
 747         if (conf) NCONF_free(conf);
 748         if (db) free_index(db);
 749
 750         OBJ_cleanup();
 751         apps_shutdown();
 752         OPENSSL_EXIT(ret);
 753         }
 754
 755
 756
 757 #endif
 758