apps/srp.c

   1 /*
   2  * Written by Peter Sylvester (peter.sylvester@edelweb.fr) for the EdelKey
   3  * 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 # define BASE_SECTION    "srp"
  74 # define CONFIG_FILE "openssl.cnf"
  75
  76 # define ENV_RANDFILE            "RANDFILE"
  77
  78 # define ENV_DATABASE            "srpvfile"
  79 # define ENV_DEFAULT_SRP         "default_srp"
  80
  81 # ifdef EFENCE
  82 extern int EF_PROTECT_FREE;
  83 extern int EF_PROTECT_BELOW;
  84 extern int EF_ALIGNMENT;
  85 # endif
  86
  87 static int get_index(CA_DB *db, char *id, char type)
  88 {
  89     char **pp;
  90     int i;
  91     if (id == NULL)
  92         return -1;
  93     if (type == DB_SRP_INDEX)
  94         for (i = 0; i < sk_OPENSSL_PSTRING_num(db->db->data); i++) {
  95             pp = sk_OPENSSL_PSTRING_value(db->db->data, i);
  96             if (pp[DB_srptype][0] == DB_SRP_INDEX
  97                 && !strcmp(id, pp[DB_srpid]))
  98                 return i;
  99     } else
 100         for (i = 0; i < sk_OPENSSL_PSTRING_num(db->db->data); i++) {
 101             pp = sk_OPENSSL_PSTRING_value(db->db->data, i);
 102
 103             if (pp[DB_srptype][0] != DB_SRP_INDEX
 104                 && !strcmp(id, pp[DB_srpid]))
 105                 return i;
 106         }
 107
 108     return -1;
 109 }
 110
 111 static void print_entry(CA_DB *db, BIO *bio, int indx, int verbose, char *s)
 112 {
 113     if (indx >= 0 && verbose) {
 114         int j;
 115         char **pp = sk_OPENSSL_PSTRING_value(db->db->data, indx);
 116         BIO_printf(bio, "%s \"%s\"\n", s, pp[DB_srpid]);
 117         for (j = 0; j < DB_NUMBER; j++) {
 118             BIO_printf(bio_err, "  %d = \"%s\"\n", j, pp[j]);
 119         }
 120     }
 121 }
 122
 123 static void print_index(CA_DB *db, BIO *bio, int indexindex, int verbose)
 124 {
 125     print_entry(db, bio, indexindex, verbose, "g N entry");
 126 }
 127
 128 static void print_user(CA_DB *db, BIO *bio, int userindex, int verbose)
 129 {
 130     if (verbose > 0) {
 131         char **pp = sk_OPENSSL_PSTRING_value(db->db->data, userindex);
 132
 133         if (pp[DB_srptype][0] != 'I') {
 134             print_entry(db, bio, userindex, verbose, "User entry");
 135             print_entry(db, bio, get_index(db, pp[DB_srpgN], 'I'), verbose,
 136                         "g N entry");
 137         }
 138
 139     }
 140 }
 141
 142 static int update_index(CA_DB *db, BIO *bio, char **row)
 143 {
 144     char **irow;
 145     int i;
 146
 147     if ((irow =
 148          (char **)OPENSSL_malloc(sizeof(char *) * (DB_NUMBER + 1))) == NULL) {
 149         BIO_printf(bio_err, "Memory allocation failure\n");
 150         return 0;
 151     }
 152
 153     for (i = 0; i < DB_NUMBER; i++) {
 154         irow[i] = row[i];
 155         row[i] = NULL;
 156     }
 157     irow[DB_NUMBER] = NULL;
 158
 159     if (!TXT_DB_insert(db->db, irow)) {
 160         BIO_printf(bio, "failed to update srpvfile\n");
 161         BIO_printf(bio, "TXT_DB error number %ld\n", db->db->error);
 162         OPENSSL_free(irow);
 163         return 0;
 164     }
 165     return 1;
 166 }
 167
 168 static void lookup_fail(const char *name, const char *tag)
 169 {
 170     BIO_printf(bio_err, "variable lookup failed for %s::%s\n", name, tag);
 171 }
 172
 173 static char *srp_verify_user(const char *user, const char *srp_verifier,
 174                              char *srp_usersalt, const char *g, const char *N,
 175                              const char *passin, BIO *bio, int verbose)
 176 {
 177     char password[1024];
 178     PW_CB_DATA cb_tmp;
 179     char *verifier = NULL;
 180     char *gNid = NULL;
 181
 182     cb_tmp.prompt_info = user;
 183     cb_tmp.password = passin;
 184
 185     if (password_callback(password, 1024, 0, &cb_tmp) > 0) {
 186         if (verbose)
 187             BIO_printf(bio,
 188                        "Validating\n   user=\"%s\"\n srp_verifier=\"%s\"\n srp_usersalt=\"%s\"\n g=\"%s\"\n N=\"%s\"\n",
 189                        user, srp_verifier, srp_usersalt, g, N);
 190         BIO_printf(bio, "Pass %s\n", password);
 191
 192         OPENSSL_assert(srp_usersalt != NULL);
 193         if (!
 194             (gNid =
 195              SRP_create_verifier(user, password, &srp_usersalt, &verifier, N,
 196                                  g))) {
 197             BIO_printf(bio, "Internal error validating SRP verifier\n");
 198         } else {
 199             if (strcmp(verifier, srp_verifier))
 200                 gNid = NULL;
 201             OPENSSL_free(verifier);
 202         }
 203     }
 204     return gNid;
 205 }
 206
 207 static char *srp_create_user(char *user, char **srp_verifier,
 208                              char **srp_usersalt, char *g, char *N,
 209                              char *passout, BIO *bio, int verbose)
 210 {
 211     char password[1024];
 212     PW_CB_DATA cb_tmp;
 213     char *gNid = NULL;
 214     char *salt = NULL;
 215     cb_tmp.prompt_info = user;
 216     cb_tmp.password = passout;
 217
 218     if (password_callback(password, 1024, 1, &cb_tmp) > 0) {
 219         if (verbose)
 220             BIO_printf(bio, "Creating\n user=\"%s\"\n g=\"%s\"\n N=\"%s\"\n",
 221                        user, g, N);
 222         if (!
 223             (gNid =
 224              SRP_create_verifier(user, password, &salt, srp_verifier, N,
 225                                  g))) {
 226             BIO_printf(bio, "Internal error creating SRP verifier\n");
 227         } else
 228             *srp_usersalt = salt;
 229         if (verbose > 1)
 230             BIO_printf(bio, "gNid=%s salt =\"%s\"\n verifier =\"%s\"\n", gNid,
 231                        salt, *srp_verifier);
 232
 233     }
 234     return gNid;
 235 }
 236
 237 typedef enum OPTION_choice {
 238     OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
 239     OPT_VERBOSE, OPT_CONFIG, OPT_NAME, OPT_SRPVFILE, OPT_ADD,
 240     OPT_DELETE, OPT_MODIFY, OPT_LIST, OPT_GN, OPT_USERINFO,
 241     OPT_PASSIN, OPT_PASSOUT, OPT_ENGINE
 242 } OPTION_CHOICE;
 243
 244 OPTIONS srp_options[] = {
 245     {"help", OPT_HELP, '-', "Display this summary"},
 246     {"verbose", OPT_VERBOSE, '-', "Talk a lot while doing things"},
 247     {"config", OPT_CONFIG, '<', "A config file"},
 248     {"name", OPT_NAME, 's', "The particular srp definition to use"},
 249     {"srpvfile", OPT_SRPVFILE, '<', "The srp verifier file name"},
 250     {"add", OPT_ADD, '-', "Add a user and srp verifier"},
 251     {"modify", OPT_MODIFY, '-',
 252      "Modify the srp verifier of an existing user"},
 253     {"delete", OPT_DELETE, '-', "Delete user from verifier file"},
 254     {"list", OPT_LIST, '-', "List users"},
 255     {"gn", OPT_GN, 's', "Set g and N values to be used for new verifier"},
 256     {"userinfo", OPT_USERINFO, 's', "Additional info to be set for user"},
 257     {"passin", OPT_PASSIN, 's', "Input file pass phrase source"},
 258     {"passout", OPT_PASSOUT, 's', "Output file pass phrase source"},
 259 # ifndef OPENSSL_NO_ENGINE
 260     {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
 261 # endif
 262     {NULL}
 263 };
 264
 265 int srp_main(int argc, char **argv)
 266 {
 267     CA_DB *db = NULL;
 268     DB_ATTR db_attr;
 269     CONF *conf = NULL;
 270     int gNindex = -1, maxgN = -1, ret = 1, errors = 0, verbose =
 271         0, i, doupdatedb = 0;
 272     int mode = OPT_ERR;
 273     char *user = NULL, *passinarg = NULL, *passoutarg = NULL;
 274     char *passin = NULL, *passout = NULL, *gN = NULL, *userinfo = NULL;
 275     char *randfile = NULL, *tofree = NULL, *section = NULL;
 276     char **gNrow = NULL, *configfile = NULL, *dbfile = NULL, **pp, *prog;
 277     long errorline = -1;
 278     OPTION_CHOICE o;
 279
 280 # ifdef EFENCE
 281     EF_PROTECT_FREE = 1;
 282     EF_PROTECT_BELOW = 1;
 283     EF_ALIGNMENT = 0;
 284 # endif
 285
 286     prog = opt_init(argc, argv, srp_options);
 287     while ((o = opt_next()) != OPT_EOF) {
 288         switch (o) {
 289         case OPT_EOF:
 290         case OPT_ERR:
 291  opthelp:
 292             BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
 293             goto end;
 294         case OPT_HELP:
 295             opt_help(srp_options);
 296             ret = 0;
 297             goto end;
 298         case OPT_VERBOSE:
 299             verbose++;
 300             break;
 301         case OPT_CONFIG:
 302             configfile = opt_arg();
 303             break;
 304         case OPT_NAME:
 305             section = opt_arg();
 306             break;
 307         case OPT_SRPVFILE:
 308             dbfile = opt_arg();
 309             break;
 310         case OPT_ADD:
 311         case OPT_DELETE:
 312         case OPT_MODIFY:
 313         case OPT_LIST:
 314             if (mode != OPT_ERR) {
 315                 BIO_printf(bio_err,
 316                            "%s: Only one of -add/delete-modify/-list\n",
 317                            prog);
 318                 goto opthelp;
 319             }
 320             mode = o;
 321             break;
 322         case OPT_GN:
 323             gN = opt_arg();
 324             break;
 325         case OPT_USERINFO:
 326             userinfo = opt_arg();
 327             break;
 328         case OPT_PASSIN:
 329             passinarg = opt_arg();
 330             break;
 331         case OPT_PASSOUT:
 332             passoutarg = opt_arg();
 333             break;
 334         case OPT_ENGINE:
 335             (void)setup_engine(opt_arg(), 0);
 336             break;
 337         }
 338     }
 339     argc = opt_num_rest();
 340     argv = opt_rest();
 341
 342     if (dbfile && configfile) {
 343         BIO_printf(bio_err,
 344                    "-dbfile and -configfile cannot be specified together.\n");
 345         goto end;
 346     }
 347     if (mode == OPT_ERR) {
 348         BIO_printf(bio_err,
 349                    "Exactly one of the options -add, -delete, -modify -list must be specified.\n");
 350         goto opthelp;
 351     }
 352     if ((mode == OPT_DELETE || mode == OPT_MODIFY || OPT_ADD) && argc < 1) {
 353         BIO_printf(bio_err,
 354                    "Need at least one user for options -add, -delete, -modify. \n");
 355         goto opthelp;
 356     }
 357     if ((passin || passout) && argc != 1) {
 358         BIO_printf(bio_err,
 359                    "-passin, -passout arguments only valid with one user.\n");
 360         goto opthelp;
 361     }
 362
 363     if (!app_passwd(passinarg, passoutarg, &passin, &passout)) {
 364         BIO_printf(bio_err, "Error getting passwords\n");
 365         goto end;
 366     }
 367
 368     if (!dbfile) {
 369
 370         /*****************************************************************/
 371         tofree = NULL;
 372         if (configfile == NULL)
 373             configfile = getenv("OPENSSL_CONF");
 374         if (configfile == NULL)
 375             configfile = getenv("SSLEAY_CONF");
 376         if (configfile == NULL) {
 377             const char *s = X509_get_default_cert_area();
 378             size_t len;
 379
 380 # ifdef OPENSSL_SYS_VMS
 381             len = strlen(s) + sizeof(CONFIG_FILE);
 382             tofree = OPENSSL_malloc(len);
 383             if (!tofree) {
 384                 BIO_printf(bio_err, "Out of memory\n");
 385                 goto end;
 386             }
 387             strcpy(tofree, s);
 388 # else
 389             len = strlen(s) + sizeof(CONFIG_FILE) + 1;
 390             tofree = OPENSSL_malloc(len);
 391             if (!tofree) {
 392                 BIO_printf(bio_err, "Out of memory\n");
 393                 goto end;
 394             }
 395             BUF_strlcpy(tofree, s, len);
 396             BUF_strlcat(tofree, "/", len);
 397 # endif
 398             BUF_strlcat(tofree, CONFIG_FILE, len);
 399             configfile = tofree;
 400         }
 401
 402         if (verbose)
 403             BIO_printf(bio_err, "Using configuration from %s\n", configfile);
 404         conf = NCONF_new(NULL);
 405         if (NCONF_load(conf, configfile, &errorline) <= 0) {
 406             if (errorline <= 0)
 407                 BIO_printf(bio_err, "error loading the config file '%s'\n",
 408                            configfile);
 409             else
 410                 BIO_printf(bio_err, "error on line %ld of config file '%s'\n",
 411                            errorline, configfile);
 412             goto end;
 413         }
 414         if (tofree) {
 415             OPENSSL_free(tofree);
 416             tofree = NULL;
 417         }
 418
 419         /* Lets get the config section we are using */
 420         if (section == NULL) {
 421             if (verbose)
 422                 BIO_printf(bio_err,
 423                            "trying to read " ENV_DEFAULT_SRP
 424                            " in \" BASE_SECTION \"\n");
 425
 426             section = NCONF_get_string(conf, BASE_SECTION, ENV_DEFAULT_SRP);
 427             if (section == NULL) {
 428                 lookup_fail(BASE_SECTION, ENV_DEFAULT_SRP);
 429                 goto end;
 430             }
 431         }
 432
 433         if (randfile == NULL && conf)
 434             randfile = NCONF_get_string(conf, BASE_SECTION, "RANDFILE");
 435
 436         if (verbose)
 437             BIO_printf(bio_err,
 438                        "trying to read " ENV_DATABASE " in section \"%s\"\n",
 439                        section);
 440
 441         if ((dbfile = NCONF_get_string(conf, section, ENV_DATABASE)) == NULL) {
 442             lookup_fail(section, ENV_DATABASE);
 443             goto end;
 444         }
 445
 446     }
 447     if (randfile == NULL)
 448         ERR_clear_error();
 449     else
 450         app_RAND_load_file(randfile, 0);
 451
 452     if (verbose)
 453         BIO_printf(bio_err, "Trying to read SRP verifier file \"%s\"\n",
 454                    dbfile);
 455
 456     db = load_index(dbfile, &db_attr);
 457     if (db == NULL)
 458         goto end;
 459
 460     /* Lets check some fields */
 461     for (i = 0; i < sk_OPENSSL_PSTRING_num(db->db->data); i++) {
 462         pp = sk_OPENSSL_PSTRING_value(db->db->data, i);
 463
 464         if (pp[DB_srptype][0] == DB_SRP_INDEX) {
 465             maxgN = i;
 466             if (gNindex < 0 && gN != NULL && !strcmp(gN, pp[DB_srpid]))
 467                 gNindex = i;
 468
 469             print_index(db, bio_err, i, verbose > 1);
 470         }
 471     }
 472
 473     if (verbose)
 474         BIO_printf(bio_err, "Database initialised\n");
 475
 476     if (gNindex >= 0) {
 477         gNrow = sk_OPENSSL_PSTRING_value(db->db->data, gNindex);
 478         print_entry(db, bio_err, gNindex, verbose > 1, "Default g and N");
 479     } else if (maxgN > 0 && !SRP_get_default_gN(gN)) {
 480         BIO_printf(bio_err, "No g and N value for index \"%s\"\n", gN);
 481         goto end;
 482     } else {
 483         if (verbose)
 484             BIO_printf(bio_err, "Database has no g N information.\n");
 485         gNrow = NULL;
 486     }
 487
 488     if (verbose > 1)
 489         BIO_printf(bio_err, "Starting user processing\n");
 490
 491     if (argc > 0)
 492         user = *(argv++);
 493
 494     while (mode == OPT_LIST || user) {
 495         int userindex = -1;
 496         if (user)
 497             if (verbose > 1)
 498                 BIO_printf(bio_err, "Processing user \"%s\"\n", user);
 499         if ((userindex = get_index(db, user, 'U')) >= 0) {
 500             print_user(db, bio_err, userindex, (verbose > 0)
 501                        || mode == OPT_LIST);
 502         }
 503
 504         if (mode == OPT_LIST) {
 505             if (user == NULL) {
 506                 BIO_printf(bio_err, "List all users\n");
 507
 508                 for (i = 0; i < sk_OPENSSL_PSTRING_num(db->db->data); i++) {
 509                     print_user(db, bio_err, i, 1);
 510                 }
 511             } else if (userindex < 0) {
 512                 BIO_printf(bio_err,
 513                            "user \"%s\" does not exist, ignored. t\n", user);
 514                 errors++;
 515             }
 516         } else if (mode == OPT_ADD) {
 517             if (userindex >= 0) {
 518                 /* reactivation of a new user */
 519                 char **row =
 520                     sk_OPENSSL_PSTRING_value(db->db->data, userindex);
 521                 BIO_printf(bio_err, "user \"%s\" reactivated.\n", user);
 522                 row[DB_srptype][0] = 'V';
 523
 524                 doupdatedb = 1;
 525             } else {
 526                 char *row[DB_NUMBER];
 527                 char *gNid;
 528                 row[DB_srpverifier] = NULL;
 529                 row[DB_srpsalt] = NULL;
 530                 row[DB_srpinfo] = NULL;
 531                 if (!
 532                     (gNid =
 533                      srp_create_user(user, &(row[DB_srpverifier]),
 534                                      &(row[DB_srpsalt]),
 535                                      gNrow ? gNrow[DB_srpsalt] : gN,
 536                                      gNrow ? gNrow[DB_srpverifier] : NULL,
 537                                      passout, bio_err, verbose))) {
 538                     BIO_printf(bio_err,
 539                                "Cannot create srp verifier for user \"%s\", operation abandoned .\n",
 540                                user);
 541                     errors++;
 542                     goto end;
 543                 }
 544                 row[DB_srpid] = BUF_strdup(user);
 545                 row[DB_srptype] = BUF_strdup("v");
 546                 row[DB_srpgN] = BUF_strdup(gNid);
 547
 548                 if (!row[DB_srpid] || !row[DB_srpgN] || !row[DB_srptype]
 549                     || !row[DB_srpverifier] || !row[DB_srpsalt] || (userinfo
 550                                                                     &&
 551                                                                     (!(row
 552                                                                        [DB_srpinfo]
 553                                                                        =
 554                                                                        BUF_strdup
 555                                                                        (userinfo))))
 556                     || !update_index(db, bio_err, row)) {
 557                     if (row[DB_srpid])
 558                         OPENSSL_free(row[DB_srpid]);
 559                     if (row[DB_srpgN])
 560                         OPENSSL_free(row[DB_srpgN]);
 561                     if (row[DB_srpinfo])
 562                         OPENSSL_free(row[DB_srpinfo]);
 563                     if (row[DB_srptype])
 564                         OPENSSL_free(row[DB_srptype]);
 565                     if (row[DB_srpverifier])
 566                         OPENSSL_free(row[DB_srpverifier]);
 567                     if (row[DB_srpsalt])
 568                         OPENSSL_free(row[DB_srpsalt]);
 569                     goto end;
 570                 }
 571                 doupdatedb = 1;
 572             }
 573         } else if (mode == OPT_MODIFY) {
 574             if (userindex < 0) {
 575                 BIO_printf(bio_err,
 576                            "user \"%s\" does not exist, operation ignored.\n",
 577                            user);
 578                 errors++;
 579             } else {
 580
 581                 char **row =
 582                     sk_OPENSSL_PSTRING_value(db->db->data, userindex);
 583                 char type = row[DB_srptype][0];
 584                 if (type == 'v') {
 585                     BIO_printf(bio_err,
 586                                "user \"%s\" already updated, operation ignored.\n",
 587                                user);
 588                     errors++;
 589                 } else {
 590                     char *gNid;
 591
 592                     if (row[DB_srptype][0] == 'V') {
 593                         int user_gN;
 594                         char **irow = NULL;
 595                         if (verbose)
 596                             BIO_printf(bio_err,
 597                                        "Verifying password for user \"%s\"\n",
 598                                        user);
 599                         if ((user_gN =
 600                              get_index(db, row[DB_srpgN], DB_SRP_INDEX)) >= 0)
 601                             irow =
 602                                 sk_OPENSSL_PSTRING_value(db->db->data,
 603                                                          userindex);
 604
 605                         if (!srp_verify_user
 606                             (user, row[DB_srpverifier], row[DB_srpsalt],
 607                              irow ? irow[DB_srpsalt] : row[DB_srpgN],
 608                              irow ? irow[DB_srpverifier] : NULL, passin,
 609                              bio_err, verbose)) {
 610                             BIO_printf(bio_err,
 611                                        "Invalid password for user \"%s\", operation abandoned.\n",
 612                                        user);
 613                             errors++;
 614                             goto end;
 615                         }
 616                     }
 617                     if (verbose)
 618                         BIO_printf(bio_err, "Password for user \"%s\" ok.\n",
 619                                    user);
 620
 621                     if (!
 622                         (gNid =
 623                          srp_create_user(user, &(row[DB_srpverifier]),
 624                                          &(row[DB_srpsalt]),
 625                                          gNrow ? gNrow[DB_srpsalt] : NULL,
 626                                          gNrow ? gNrow[DB_srpverifier] : NULL,
 627                                          passout, bio_err, verbose))) {
 628                         BIO_printf(bio_err,
 629                                    "Cannot create srp verifier for user \"%s\", operation abandoned.\n",
 630                                    user);
 631                         errors++;
 632                         goto end;
 633                     }
 634
 635                     row[DB_srptype][0] = 'v';
 636                     row[DB_srpgN] = BUF_strdup(gNid);
 637
 638                     if (!row[DB_srpid] || !row[DB_srpgN] || !row[DB_srptype]
 639                         || !row[DB_srpverifier] || !row[DB_srpsalt]
 640                         || (userinfo
 641                             && (!(row[DB_srpinfo] = BUF_strdup(userinfo)))))
 642                         goto end;
 643
 644                     doupdatedb = 1;
 645                 }
 646             }
 647         } else if (mode == OPT_DELETE) {
 648             if (userindex < 0) {
 649                 BIO_printf(bio_err,
 650                            "user \"%s\" does not exist, operation ignored. t\n",
 651                            user);
 652                 errors++;
 653             } else {
 654                 char **xpp =
 655                     sk_OPENSSL_PSTRING_value(db->db->data, userindex);
 656                 BIO_printf(bio_err, "user \"%s\" revoked. t\n", user);
 657
 658                 xpp[DB_srptype][0] = 'R';
 659
 660                 doupdatedb = 1;
 661             }
 662         }
 663         if (--argc > 0)
 664             user = *(argv++);
 665         else {
 666             user = NULL;
 667         }
 668     }
 669
 670     if (verbose)
 671         BIO_printf(bio_err, "User procession done.\n");
 672
 673     if (doupdatedb) {
 674         /* Lets check some fields */
 675         for (i = 0; i < sk_OPENSSL_PSTRING_num(db->db->data); i++) {
 676             pp = sk_OPENSSL_PSTRING_value(db->db->data, i);
 677
 678             if (pp[DB_srptype][0] == 'v') {
 679                 pp[DB_srptype][0] = 'V';
 680                 print_user(db, bio_err, i, verbose);
 681             }
 682         }
 683
 684         if (verbose)
 685             BIO_printf(bio_err, "Trying to update srpvfile.\n");
 686         if (!save_index(dbfile, "new", db))
 687             goto end;
 688
 689         if (verbose)
 690             BIO_printf(bio_err, "Temporary srpvfile created.\n");
 691         if (!rotate_index(dbfile, "new", "old"))
 692             goto end;
 693
 694         if (verbose)
 695             BIO_printf(bio_err, "srpvfile updated.\n");
 696     }
 697
 698     ret = (errors != 0);
 699  end:
 700     if (errors != 0)
 701         if (verbose)
 702             BIO_printf(bio_err, "User errors %d.\n", errors);
 703
 704     if (verbose)
 705         BIO_printf(bio_err, "SRP terminating with code %d.\n", ret);
 706     if (tofree)
 707         OPENSSL_free(tofree);
 708     if (ret)
 709         ERR_print_errors(bio_err);
 710     if (randfile)
 711         app_RAND_write_file(randfile);
 712     if (conf)
 713         NCONF_free(conf);
 714     if (db)
 715         free_index(db);
 716
 717     OBJ_cleanup();
 718     return (ret);
 719 }
 720
 721 #endif