git.sur5r.net Git - openldap/blob - clients/tools/ldapvc.c

   1 /* ldapvc.c -- a tool for verifying credentials */
   2 /* $OpenLDAP$ */
   3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
   4  *
   5  * Copyright 1998-2014 The OpenLDAP Foundation.
   6  * Portions Copyright 2010 Kurt D. Zeilenga.
   7  * All rights reserved.
   8  *
   9  * Redistribution and use in source and binary forms, with or without
  10  * modification, are permitted only as authorized by the OpenLDAP
  11  * Public License.
  12  *
  13  * A copy of this license is available in the file LICENSE in the
  14  * top-level directory of the distribution or, alternatively, at
  15  * <http://www.OpenLDAP.org/license.html>.
  16  */
  17 /* Portions Copyright (c) 1992-1996 Regents of the University of Michigan.
  18  * All rights reserved.
  19  *
  20  * Redistribution and use in source and binary forms are permitted
  21  * provided that this notice is preserved and that due credit is given
  22  * to the University of Michigan at Ann Arbor.  The name of the
  23  * University may not be used to endorse or promote products derived
  24  * from this software without specific prior written permission.  This
  25  * software is provided ``as is'' without express or implied warranty.
  26  */
  27 /* ACKNOWLEDGEMENTS:
  28  * This work was originally developed by Kurt D. Zeilenga for inclusion
  29  * in OpenLDAP Software based, in part, on other client tools.
  30  */
  31
  32 #include "portable.h"
  33
  34 #include <stdio.h>
  35
  36 #include <ac/stdlib.h>
  37
  38 #include <ac/ctype.h>
  39 #include <ac/socket.h>
  40 #include <ac/string.h>
  41 #include <ac/time.h>
  42 #include <ac/unistd.h>
  43
  44 #include <ldap.h>
  45 #include "lutil.h"
  46 #include "lutil_ldap.h"
  47 #include "ldap_defaults.h"
  48
  49 #include "common.h"
  50
  51 static int req_authzid = 0;
  52 static int req_pp = 0;
  53
  54 #if defined(LDAP_API_FEATURES_VERIFY_CREDENTIALS_INTERACTIVE) && defined(HAVE_CYRUS_SASL)
  55 #define LDAP_SASL_NONE (~0U)
  56 static unsigned vc_sasl = LDAP_SASL_NONE;
  57 static char *vc_sasl_realm = NULL;
  58 static char *vc_sasl_authcid = NULL;
  59 static char *vc_sasl_authzid = NULL;
  60 static char *vc_sasl_mech = NULL;
  61 static char *vc_sasl_secprops = NULL;
  62 #endif
  63 static char * dn = NULL;
  64 static struct berval cred = {0, NULL};
  65
  66 void
  67 usage( void )
  68 {
  69         fprintf( stderr, _("Issue LDAP Verify Credentials operation to verify a user's credentials\n\n"));
  70         fprintf( stderr, _("usage: %s [options] [DN [cred]])\n"), prog);
  71         fprintf( stderr, _("where:\n"));
  72         fprintf( stderr, _("    DN\tDistinguished Name\n"));
  73         fprintf( stderr, _("    cred\tCredentials (prompt if not present)\n"));
  74         fprintf( stderr, _("options:\n"));
  75         fprintf( stderr, _("    -a\tRequest AuthzId\n"));
  76         fprintf( stderr, _("    -b\tRequest Password Policy Information\n"));
  77         fprintf( stderr, _("    -E sasl=(a[utomatic]|i[nteractive]|q[uiet]>\tSASL mode (defaults to automatic if any other -E option provided, otherwise none))\n"));
  78         fprintf( stderr, _("    -E mech=<mech>\tSASL mechanism (default "" e.g. Simple)\n"));
  79         fprintf( stderr, _("    -E realm=<realm>\tSASL Realm (defaults to none)\n"));
  80         fprintf( stderr, _("    -E authcid=<authcid>\tSASL Authenication Identity (defaults to USER)\n"));
  81         fprintf( stderr, _("    -E authzid=<authzid>\tSASL Authorization Identity (defaults to none)\n"));
  82         fprintf( stderr, _("    -E secprops=<secprops>\tSASL Security Properties (defaults to none)\n"));
  83         tool_common_usage();
  84         exit( EXIT_FAILURE );
  85 }
  86
  87
  88 const char options[] = "abE:"
  89         "d:D:e:h:H:InNO:o:p:QR:U:vVw:WxX:y:Y:Z";
  90
  91 int
  92 handle_private_option( int i )
  93 {
  94         switch ( i ) {
  95                 char    *control, *cvalue;
  96                 int             crit;
  97         case 'E': /* vc extension */
  98                 if( protocol == LDAP_VERSION2 ) {
  99                         fprintf( stderr, _("%s: -E incompatible with LDAPv%d\n"),
 100                                 prog, protocol );
 101                         exit( EXIT_FAILURE );
 102                 }
 103
 104                 /* should be extended to support comma separated list of
 105                  *      [!]key[=value] parameters, e.g.  -E !foo,bar=567
 106                  */
 107
 108                 crit = 0;
 109                 cvalue = NULL;
 110                 if( optarg[0] == '!' ) {
 111                         crit = 1;
 112                         optarg++;
 113                 }
 114
 115                 control = strdup( optarg );
 116                 if ( (cvalue = strchr( control, '=' )) != NULL ) {
 117                         *cvalue++ = '\0';
 118                 }
 119
 120                 if (strcasecmp(control, "sasl") == 0) {
 121 #if defined(LDAP_API_FEATURES_VERIFY_CREDENTIALS_INTERACTIVE) && defined(HAVE_CYRUS_SASL)
 122                         if (vc_sasl != LDAP_SASL_NONE) {
 123                                 fprintf(stderr,
 124                                     _("SASL option previously specified\n"));
 125                                 exit(EXIT_FAILURE);
 126                         }
 127                         if (cvalue == NULL) {
 128                                 fprintf(stderr,
 129                                         _("missing mode in SASL option\n"));
 130                                 exit(EXIT_FAILURE);
 131                         }
 132
 133                         switch (*cvalue) {
 134                         case 'a':
 135                         case 'A':
 136                                 vc_sasl = LDAP_SASL_AUTOMATIC;
 137                                 break;
 138                         case 'i':
 139                         case 'I':
 140                                 vc_sasl = LDAP_SASL_INTERACTIVE;
 141                                 break;
 142                         case 'q':
 143                         case 'Q':
 144                                 vc_sasl = LDAP_SASL_QUIET;
 145                                 break;
 146                         default:
 147                                 fprintf(stderr,
 148                                         _("unknown mode %s in SASL option\n"), cvalue);
 149                                 exit(EXIT_FAILURE);
 150                         }
 151 #else
 152                         fprintf(stderr,
 153                                 _("%s: not compiled with SASL support\n"), prog);
 154                         exit(EXIT_FAILURE);
 155 #endif
 156
 157                 } else if (strcasecmp(control, "mech") == 0) {
 158 #if defined(LDAP_API_FEATURES_VERIFY_CREDENTIALS_INTERACTIVE) && defined(HAVE_CYRUS_SASL)
 159                         if (vc_sasl_mech) {
 160                                 fprintf(stderr,
 161                                     _("SASL mech previously specified\n"));
 162                                 exit(EXIT_FAILURE);
 163                         }
 164                         if (cvalue == NULL) {
 165                                 fprintf(stderr,
 166                                         _("missing mech in SASL option\n"));
 167                                 exit(EXIT_FAILURE);
 168                         }
 169
 170                         vc_sasl_mech = ber_strdup(cvalue);
 171 #else
 172 #endif
 173
 174                 } else if (strcasecmp(control, "realm") == 0) {
 175 #if defined(LDAP_API_FEATURES_VERIFY_CREDENTIALS_INTERACTIVE) && defined(HAVE_CYRUS_SASL)
 176                         if (vc_sasl_realm) {
 177                                 fprintf(stderr,
 178                                     _("SASL realm previously specified\n"));
 179                                 exit(EXIT_FAILURE);
 180                         }
 181                         if (cvalue == NULL) {
 182                                 fprintf(stderr,
 183                                         _("missing realm in SASL option\n"));
 184                                 exit(EXIT_FAILURE);
 185                         }
 186
 187                         vc_sasl_realm = ber_strdup(cvalue);
 188 #else
 189                         fprintf(stderr,
 190                                 _("%s: not compiled with SASL support\n"), prog);
 191                         exit(EXIT_FAILURE);
 192 #endif
 193
 194                 } else if (strcasecmp(control, "authcid") == 0) {
 195 #if defined(LDAP_API_FEATURES_VERIFY_CREDENTIALS_INTERACTIVE) && defined(HAVE_CYRUS_SASL)
 196                         if (vc_sasl_authcid) {
 197                                 fprintf(stderr,
 198                                     _("SASL authcid previously specified\n"));
 199                                 exit(EXIT_FAILURE);
 200                         }
 201                         if (cvalue == NULL) {
 202                                 fprintf(stderr,
 203                                         _("missing authcid in SASL option\n"));
 204                                 exit(EXIT_FAILURE);
 205                         }
 206
 207                         vc_sasl_authcid = ber_strdup(cvalue);
 208 #else
 209                         fprintf(stderr,
 210                                 _("%s: not compiled with SASL support\n"), prog);
 211                         exit(EXIT_FAILURE);
 212 #endif
 213
 214                 } else if (strcasecmp(control, "authzid") == 0) {
 215 #if defined(LDAP_API_FEATURES_VERIFY_CREDENTIALS_INTERACTIVE) && defined(HAVE_CYRUS_SASL)
 216                         if (vc_sasl_authzid) {
 217                                 fprintf(stderr,
 218                                     _("SASL authzid previously specified\n"));
 219                                 exit(EXIT_FAILURE);
 220                         }
 221                         if (cvalue == NULL) {
 222                                 fprintf(stderr,
 223                                         _("missing authzid in SASL option\n"));
 224                                 exit(EXIT_FAILURE);
 225                         }
 226
 227                         vc_sasl_authzid = ber_strdup(cvalue);
 228 #else
 229                         fprintf(stderr,
 230                                 _("%s: not compiled with SASL support\n"), prog);
 231                         exit(EXIT_FAILURE);
 232 #endif
 233
 234                 } else if (strcasecmp(control, "secprops") == 0) {
 235 #if defined(LDAP_API_FEATURES_VERIFY_CREDENTIALS_INTERACTIVE) && defined(HAVE_CYRUS_SASL)
 236                         if (vc_sasl_secprops) {
 237                                 fprintf(stderr,
 238                                     _("SASL secprops previously specified\n"));
 239                                 exit(EXIT_FAILURE);
 240                         }
 241                         if (cvalue == NULL) {
 242                                 fprintf(stderr,
 243                                         _("missing secprops in SASL option\n"));
 244                                 exit(EXIT_FAILURE);
 245                         }
 246
 247                         vc_sasl_secprops = ber_strdup(cvalue);
 248 #else
 249                         fprintf(stderr,
 250                                 _("%s: not compiled with SASL support\n"), prog);
 251                         exit(EXIT_FAILURE);
 252 #endif
 253
 254                 } else {
 255                     fprintf( stderr, _("Invalid Verify Credentials extension name: %s\n"), control );
 256                     usage();
 257                 }
 258
 259         case 'a':  /* request authzid */
 260                 req_authzid++;
 261                 break;
 262
 263         case 'b':  /* request authzid */
 264                 req_pp++;
 265                 break;
 266
 267         default:
 268                 return 0;
 269         }
 270         return 1;
 271 }
 272
 273
 274 int
 275 main( int argc, char *argv[] )
 276 {
 277         int             rc;
 278         LDAP            *ld = NULL;
 279         char            *matcheddn = NULL, *text = NULL, **refs = NULL;
 280         int rcode;
 281         char * diag = NULL;
 282         struct berval   *scookie = NULL;
 283         struct berval   *scred = NULL;
 284         int             id, code = 0;
 285         LDAPMessage     *res;
 286         LDAPControl     **ctrls = NULL;
 287         LDAPControl     **vcctrls = NULL;
 288         int nvcctrls = 0;
 289
 290         tool_init( TOOL_VC );
 291         prog = lutil_progname( "ldapvc", argc, argv );
 292
 293         /* LDAPv3 only */
 294         protocol = LDAP_VERSION3;
 295
 296         tool_args( argc, argv );
 297
 298         if (argc - optind > 0) {
 299                 dn = argv[optind++];
 300         }
 301         if (argc - optind > 0) {
 302                 cred.bv_val = strdup(argv[optind++]);
 303                 cred.bv_len = strlen(cred.bv_val);
 304         }
 305         if (argc - optind > 0) {
 306                 usage();
 307         }
 308         if (dn
 309 #ifdef LDAP_API_FEATURE_VERIFY_CREDENTIALS_INTERACTIVE
 310            && !vc_sasl_mech
 311 #endif
 312            && !cred.bv_val)
 313         {
 314                 cred.bv_val = strdup(getpassphrase(_("User's password: ")));
 315             cred.bv_len = strlen(cred.bv_val);
 316         }
 317
 318 #ifdef LDAP_API_FEATURE_VERIFY_CREDENTIALS_INTERACTIVE
 319     if (vc_sasl_mech && (vc_sasl == LDAP_SASL_NONE)) {
 320                 vc_sasl = LDAP_SASL_AUTOMATIC;
 321         }
 322 #endif
 323
 324         ld = tool_conn_setup( 0, 0 );
 325
 326         tool_bind( ld );
 327
 328         if ( dont ) {
 329                 rc = LDAP_SUCCESS;
 330                 goto skip;
 331         }
 332
 333         tool_server_controls( ld, NULL, 0 );
 334
 335     if (req_authzid) {
 336                 vcctrls = (LDAPControl **) malloc(3*sizeof(LDAPControl *));
 337                 vcctrls[nvcctrls] = (LDAPControl *) malloc(sizeof(LDAPControl));
 338                 vcctrls[nvcctrls]->ldctl_oid = ldap_strdup(LDAP_CONTROL_AUTHZID_REQUEST);
 339                 vcctrls[nvcctrls]->ldctl_iscritical = 0;
 340                 vcctrls[nvcctrls]->ldctl_value.bv_val = NULL;
 341                 vcctrls[nvcctrls]->ldctl_value.bv_len = 0;
 342                 vcctrls[++nvcctrls] = NULL;
 343     }
 344
 345     if (req_pp) {
 346                 if (!vcctrls) vcctrls = (LDAPControl **) malloc(3*sizeof(LDAPControl *));
 347                 vcctrls[nvcctrls] = (LDAPControl *) malloc(sizeof(LDAPControl));
 348                 vcctrls[nvcctrls]->ldctl_oid = ldap_strdup(LDAP_CONTROL_PASSWORDPOLICYREQUEST);
 349                 vcctrls[nvcctrls]->ldctl_iscritical = 0;
 350                 vcctrls[nvcctrls]->ldctl_value.bv_val = NULL;
 351                 vcctrls[nvcctrls]->ldctl_value.bv_len = 0;
 352                 vcctrls[++nvcctrls] = NULL;
 353     }
 354
 355 #ifdef LDAP_API_FEATURE_VERIFY_CREDENTIALS_INTERACTIVE
 356 #ifdef HAVE_CYRUS_SASL
 357     if (vc_sasl_mech) {
 358                 int msgid;
 359                 void * defaults;
 360                 void * context = NULL;
 361                 const char *rmech = NULL;
 362
 363                 defaults = lutil_sasl_defaults(ld,
 364                         vc_sasl_mech,
 365                         vc_sasl_realm,
 366                         vc_sasl_authcid,
 367                         cred.bv_val,
 368                         sasl_authz_id);
 369
 370                 do {
 371                         rc = ldap_verify_credentials_interactive(ld, dn, vc_sasl_mech,
 372                                 vcctrls, NULL, NULL,
 373                                 vc_sasl, lutil_sasl_interact, defaults, context,
 374                                 res, &rmech, &msgid);
 375
 376                         if (rc != LDAP_SASL_BIND_IN_PROGRESS) break;
 377
 378                         ldap_msgfree(res);
 379
 380                         if (ldap_result(ld, msgid, LDAP_MSG_ALL, NULL, &res) == -1 || !res) {
 381                                 ldap_get_option(ld, LDAP_OPT_RESULT_CODE, (void*) &rc);
 382                                 ldap_get_option(ld, LDAP_OPT_DIAGNOSTIC_MESSAGE, (void*) &text);
 383                                 tool_perror( "ldap_verify_credentials_interactive", rc, NULL, NULL, text, NULL);
 384                                 ldap_memfree(text);
 385                                 tool_exit(ld, rc);
 386                         }
 387                 } while (rc == LDAP_SASL_BIND_IN_PROGRESS);
 388
 389             lutil_sasl_freedefs(defaults);
 390
 391             if( rc != LDAP_SUCCESS ) {
 392                         ldap_get_option(ld, LDAP_OPT_DIAGNOSTIC_MESSAGE, (void*) &text);
 393                     tool_perror( "ldap_verify_credentials", rc, NULL, NULL, text, NULL );
 394                     rc = EXIT_FAILURE;
 395                     goto skip;
 396             }
 397
 398         } else
 399 #endif
 400 #endif
 401     {
 402             rc = ldap_verify_credentials( ld,
 403                     NULL,
 404                     dn, NULL, cred.bv_val ? &cred: NULL, vcctrls,
 405                     NULL, NULL, &id );
 406
 407             if( rc != LDAP_SUCCESS ) {
 408                         ldap_get_option(ld, LDAP_OPT_DIAGNOSTIC_MESSAGE, (void*) &text);
 409                     tool_perror( "ldap_verify_credentials", rc, NULL, NULL, text, NULL );
 410                     rc = EXIT_FAILURE;
 411                     goto skip;
 412             }
 413
 414             for ( ; ; ) {
 415                     struct timeval      tv;
 416
 417                     if ( tool_check_abandon( ld, id ) ) {
 418                             tool_exit( ld, LDAP_CANCELLED );
 419                     }
 420
 421                     tv.tv_sec = 0;
 422                     tv.tv_usec = 100000;
 423
 424                     rc = ldap_result( ld, LDAP_RES_ANY, LDAP_MSG_ALL, &tv, &res );
 425                     if ( rc < 0 ) {
 426                             tool_perror( "ldap_result", rc, NULL, NULL, NULL, NULL );
 427                             tool_exit( ld, rc );
 428                     }
 429
 430                     if ( rc != 0 ) {
 431                             break;
 432                     }
 433             }
 434         }
 435
 436         ldap_controls_free(vcctrls);
 437         vcctrls = NULL;
 438
 439         rc = ldap_parse_result( ld, res,
 440                 &code, &matcheddn, &text, &refs, &ctrls, 0 );
 441
 442         if (rc == LDAP_SUCCESS) rc = code;
 443
 444         if (rc != LDAP_SUCCESS) {
 445                 tool_perror( "ldap_parse_result", rc, NULL, matcheddn, text, refs );
 446                 rc = EXIT_FAILURE;
 447                 goto skip;
 448         }
 449
 450         rc = ldap_parse_verify_credentials( ld, res, &rcode, &diag, &scookie, &scred, &vcctrls );
 451         ldap_msgfree(res);
 452
 453         if (rc != LDAP_SUCCESS) {
 454                 tool_perror( "ldap_parse_verify_credentials", rc, NULL, NULL, NULL, NULL );
 455                 rc = EXIT_FAILURE;
 456                 goto skip;
 457         }
 458
 459         if (rcode != LDAP_SUCCESS) {
 460                 printf(_("Failed: %s (%d)\n"), ldap_err2string(rcode), rcode);
 461         }
 462
 463         if (diag && *diag) {
 464             printf(_("Diagnostic: %s\n"), diag);
 465         }
 466
 467         if (vcctrls) {
 468                 tool_print_ctrls( ld, vcctrls );
 469         }
 470
 471 skip:
 472         if ( verbose || code != LDAP_SUCCESS ||
 473                 ( matcheddn && *matcheddn ) || ( text && *text ) || refs || ctrls )
 474         {
 475                 printf( _("Result: %s (%d)\n"), ldap_err2string( code ), code );
 476
 477                 if( text && *text ) {
 478                         printf( _("Additional info: %s\n"), text );
 479                 }
 480
 481                 if( matcheddn && *matcheddn ) {
 482                         printf( _("Matched DN: %s\n"), matcheddn );
 483                 }
 484
 485                 if( refs ) {
 486                         int i;
 487                         for( i=0; refs[i]; i++ ) {
 488                                 printf(_("Referral: %s\n"), refs[i] );
 489                         }
 490                 }
 491
 492                 if (ctrls) {
 493                         tool_print_ctrls( ld, ctrls );
 494                         ldap_controls_free( ctrls );
 495                 }
 496         }
 497
 498         ber_memfree( text );
 499         ber_memfree( matcheddn );
 500         ber_memvfree( (void **) refs );
 501         ber_bvfree( scookie );
 502         ber_bvfree( scred );
 503         ber_memfree( diag );
 504         free( cred.bv_val );
 505
 506         /* disconnect from server */
 507         tool_exit( ld, code == LDAP_SUCCESS ? EXIT_SUCCESS : EXIT_FAILURE );
 508 }