git.sur5r.net Git - openldap/blob - servers/slapd/sasl.c

   1 /* $OpenLDAP$ */
   2 /*
   3  * Copyright 1998-2002 The OpenLDAP Foundation, All Rights Reserved.
   4  * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
   5  */
   6
   7 #include "portable.h"
   8
   9 #include <stdio.h>
  10 #include <ac/stdlib.h>
  11 #include <ac/string.h>
  12
  13 #include <lber.h>
  14 #include <ldap_log.h>
  15
  16 #include "slap.h"
  17
  18 #ifdef HAVE_CYRUS_SASL
  19 #include <limits.h>
  20 #include <sasl.h>
  21
  22 #include <ldap_pvt.h>
  23
  24 #ifdef SLAPD_SPASSWD
  25 #include <lutil.h>
  26 #endif
  27
  28
  29 static sasl_security_properties_t sasl_secprops;
  30
  31 static int
  32 slap_sasl_log(
  33         void *context,
  34         int priority,
  35         const char *message)
  36 {
  37         Connection *conn = context;
  38         int level;
  39         const char * label;
  40
  41         if ( message == NULL ) {
  42                 return SASL_BADPARAM;
  43         }
  44
  45         switch (priority) {
  46         case SASL_LOG_ERR:
  47                 level = LDAP_DEBUG_ANY;
  48                 label = "Error";
  49                 break;
  50         case SASL_LOG_WARNING:
  51                 level = LDAP_DEBUG_TRACE;
  52                 label = "Warning";
  53                 break;
  54         case SASL_LOG_INFO:
  55                 level = LDAP_DEBUG_TRACE;
  56                 label = "Info";
  57                 break;
  58         default:
  59                 return SASL_BADPARAM;
  60         }
  61
  62 #ifdef NEW_LOGGING
  63         LDAP_LOG(( "sasl", LDAP_LEVEL_ENTRY,
  64                 "SASL [conn=%ld] %s: %s\n",
  65                 conn ? conn->c_connid : -1,
  66                 label, message ));
  67 #else
  68         Debug( level, "SASL [conn=%ld] %s: %s\n",
  69                 conn ? conn->c_connid: -1,
  70                 label, message );
  71 #endif
  72
  73
  74         return SASL_OK;
  75 }
  76
  77
  78 /* Take any sort of identity string and return a DN with the "dn:" prefix. The
  79    string returned in *dnptr is in its own allocated memory, and must be free'd
  80    by the calling process.
  81    -Mark Adamson, Carnegie Mellon
  82 */
  83
  84 int slap_sasl_getdn( Connection *conn, char *id, char **dnptr, int flags )
  85 {
  86         char *c=NULL, *c1, *dn=NULL;
  87         int rc, len;
  88         sasl_conn_t *ctx;
  89
  90
  91 #ifdef NEW_LOGGING
  92         LDAP_LOG(( "sasl", LDAP_LEVEL_ENTRY,
  93                 "slap_sasl_getdn: conn %d id=%s\n",
  94                 conn ? conn->c_connid : -1,
  95                 id ? (*id ? id : "<empty>") : "NULL" ));
  96 #else
  97         Debug( LDAP_DEBUG_ARGS, "slap_sasl_getdn: id=%s\n",
  98       id?(*id?id:"<empty>"):"NULL",0,0 );
  99 #endif
 100
 101
 102         /* Blatantly anonymous ID */
 103         if( id &&
 104                 ( id[sizeof( "anonymous" )-1] == '\0'
 105                         || id[sizeof( "anonymous" )-1] == '@' ) &&
 106                 !strncasecmp( id, "anonymous", sizeof( "anonymous" )-1) ) {
 107                 *dnptr = NULL;
 108                 return( LDAP_SUCCESS );
 109         }
 110         ctx = conn->c_sasl_context;
 111         len = strlen( id );
 112
 113         /* An authcID needs to be converted to authzID form */
 114         if( flags & FLAG_GETDN_AUTHCID ) {
 115                 if( sasl_external_x509dn_convert && conn->c_sasl_bind_mech
 116                         && ( strcasecmp( "EXTERNAL", conn->c_sasl_bind_mech ) == 0 )
 117                         && len && id[0] == '/' /* && id[len-1]== '/' */)
 118                 {
 119                         /* check SASL external for X.509 style DN and */
 120                         /* convert to dn:<dn> form */
 121                         char *tmpdn = ldap_dcedn2dn( id );
 122                         len = strlen( tmpdn );
 123
 124                         dn = ch_malloc( len+4 );
 125                         dn[0] = 'd';
 126                         dn[1] = 'n';
 127                         dn[2] = ':';
 128                         AC_MEMCPY( &dn[3], tmpdn, len+1 );
 129                         len += 3;
 130
 131                 } else {
 132                         /* convert to u:<username> form */
 133                         dn = ch_malloc( len+3 );
 134                         dn[0] = 'u';
 135                         dn[1] = ':';
 136                         AC_MEMCPY( &dn[2], id, len+1 );
 137                         len += 2;
 138                 }
 139         } else {
 140                 dn = ch_strdup( id );
 141         }
 142
 143         /* An authzID must be properly prefixed */
 144         if( flags & FLAG_GETDN_AUTHZID
 145                 && strncasecmp( dn, "u:", sizeof("u:")-1 )
 146                 && strncasecmp( dn, "dn:", sizeof("dn:")-1 ) )
 147         {
 148                 ch_free( dn );
 149                 *dnptr = NULL;
 150                 return( LDAP_INAPPROPRIATE_AUTH );
 151         }
 152
 153         /* Username strings */
 154         if( !strncasecmp( dn, "u:", sizeof("u:")-1 ) ) {
 155                 len += (sizeof("dn:uid=")-1) + (sizeof(",cn=auth")-1);
 156
 157                 /* Figure out how much data we have for the dn */
 158                 rc = sasl_getprop( ctx, SASL_REALM, (void **)&c );
 159                 if( rc != SASL_OK && rc != SASL_NOTDONE ) {
 160 #ifdef NEW_LOGGING
 161                         LDAP_LOG(( "sasl", LDAP_LEVEL_ERR,
 162                                 "slap_sasl_getdn: getprop(REALM) failed.\n" ));
 163 #else
 164                         Debug(LDAP_DEBUG_TRACE,
 165                                 "getdn: getprop(REALM) failed!\n", 0,0,0);
 166 #endif
 167
 168                         ch_free( dn );
 169                         *dnptr = NULL;
 170                         return( LDAP_OPERATIONS_ERROR );
 171                 }
 172
 173                 if( c && *c ) {
 174                         len += strlen( c ) + (sizeof(",cn=")-1);
 175                 }
 176
 177                 if( conn->c_sasl_bind_mech ) {
 178                         len += strlen( conn->c_sasl_bind_mech ) + (sizeof(",cn=")-1);
 179                 }
 180
 181                 /* Build the new dn */
 182                 c1 = dn;
 183                 dn = ch_malloc( len );
 184                 len = sprintf( dn, "dn:uid=%s", c1+2 );
 185                 ch_free( c1 );
 186
 187                 if( c ) {
 188                         len += sprintf( dn+len, ",cn=%s", c );
 189                 }
 190                 if( conn->c_sasl_bind_mech ) {
 191                         len += sprintf( dn+len, ",cn=%s", conn->c_sasl_bind_mech );
 192                 }
 193                 strcpy( dn+len, ",cn=auth" );
 194                 len += (sizeof(",cn=auth")-1);
 195
 196 #ifdef NEW_LOGGING
 197                 LDAP_LOG(( "sasl", LDAP_LEVEL_ENTRY,
 198                         "slap_sasl_getdn: u:id converted to %s.\n", dn ));
 199 #else
 200                 Debug( LDAP_DEBUG_TRACE, "getdn: u:id converted to %s\n", dn,0,0 );
 201 #endif
 202         }
 203
 204         /* DN strings that are a cn=auth identity to run through regexp */
 205         if( !strncasecmp( dn, "dn:", sizeof("dn:")-1) &&
 206                 ( ( flags & FLAG_GETDN_FINAL ) == 0 ) )
 207         {
 208                 c1 = slap_sasl2dn( dn + (sizeof("dn:")-1) );
 209                 if( c1 ) {
 210                         ch_free( dn );
 211                         dn = c1;
 212                         /* Reaffix the dn: prefix if it was removed */
 213                         if( strncasecmp( dn, "dn:", sizeof("dn:")-1) ) {
 214                                 c1 = dn;
 215                                 dn = ch_malloc( strlen( c1 ) + sizeof("dn:") );
 216                                 sprintf( dn, "dn:%s", c1 );
 217                                 ch_free( c1 );
 218                         }
 219
 220 #ifdef NEW_LOGGING
 221                         LDAP_LOG(( "sasl", LDAP_LEVEL_ENTRY,
 222                                 "slap_sasl_getdn: dn:id converted to %s.\n", dn ));
 223 #else
 224                         Debug( LDAP_DEBUG_TRACE, "getdn: dn:id converted to %s\n",
 225                                 dn, 0, 0 );
 226 #endif
 227                 }
 228         }
 229
 230         if( ( flags & FLAG_GETDN_FINAL ) == 0 )  {
 231                 dn_normalize( dn+(sizeof("dn:")-1) );
 232         }
 233
 234         *dnptr = dn;
 235         return( LDAP_SUCCESS );
 236 }
 237
 238
 239
 240 static int
 241 slap_sasl_authorize(
 242         void *context,
 243         const char *authcid,
 244         const char *authzid,
 245         const char **user,
 246         const char **errstr)
 247 {
 248         char *authcDN, *authzDN;
 249         int rc;
 250         Connection *conn = context;
 251
 252         *user = NULL;
 253
 254 #ifdef NEW_LOGGING
 255         LDAP_LOG(( "sasl", LDAP_LEVEL_ENTRY,
 256                    "slap_sas_authorize: conn %d  authcid=\"%s\" authzid=\"%s\"\n",
 257                    conn ? conn->c_connid : -1,
 258                    authcid ? authcid : "<empty>",
 259                    authzid ? authzid : "<empty>" ));
 260 #else
 261         Debug( LDAP_DEBUG_ARGS, "SASL Authorize [conn=%ld]: "
 262                 "authcid=\"%s\" authzid=\"%s\"\n",
 263                 (long) (conn ? conn->c_connid : -1),
 264                 authcid ? authcid : "<empty>",
 265                 authzid ? authzid : "<empty>" );
 266 #endif
 267
 268
 269         /* Convert the identities to DN's. If no authzid was given, client will
 270            be bound as the DN matching their username */
 271         rc = slap_sasl_getdn( conn, (char *)authcid, &authcDN, FLAG_GETDN_AUTHCID );
 272         if( rc != LDAP_SUCCESS ) {
 273                 *errstr = ldap_err2string( rc );
 274                 return SASL_NOAUTHZ;
 275         }
 276         if( ( authzid == NULL ) || !strcmp( authcid,authzid ) ) {
 277 #ifdef NEW_LOGGING
 278                 LDAP_LOG(( "sasl", LDAP_LEVEL_ENTRY,
 279                            "slap_sasl_authorize: conn %d  Using authcDN=%s\n",
 280                            conn ? conn->c_connid : -1, authcDN ));
 281 #else
 282                 Debug( LDAP_DEBUG_TRACE, "SASL Authorize [conn=%ld]: "
 283                  "Using authcDN=%s\n", (long) (conn ? conn->c_connid : -1), authcDN,0 );
 284 #endif
 285
 286                 *user = authcDN;
 287                 *errstr = NULL;
 288                 return SASL_OK;
 289         }
 290         rc = slap_sasl_getdn( conn, (char *)authzid, &authzDN, FLAG_GETDN_AUTHZID );
 291         if( rc != LDAP_SUCCESS ) {
 292                 ch_free( authcDN );
 293                 *errstr = ldap_err2string( rc );
 294                 return SASL_NOAUTHZ;
 295         }
 296
 297         rc = slap_sasl_authorized( authcDN, authzDN );
 298         if( rc ) {
 299 #ifdef NEW_LOGGING
 300                 LDAP_LOG(( "sasl", LDAP_LEVEL_INFO,
 301                            "slap_sasl_authorize: conn %ld  authorization disallowed (%d)\n",
 302                            (long)(conn ? conn->c_connid : -1), rc ));
 303 #else
 304                 Debug( LDAP_DEBUG_TRACE, "SASL Authorize [conn=%ld]: "
 305                         " authorization disallowed (%d)\n",
 306                         (long) (conn ? conn->c_connid : -1), rc, 0 );
 307 #endif
 308
 309                 *errstr = "not authorized";
 310                 ch_free( authcDN );
 311                 ch_free( authzDN );
 312                 return SASL_NOAUTHZ;
 313         }
 314
 315 #ifdef NEW_LOGGING
 316         LDAP_LOG(( "sasl", LDAP_LEVEL_ENTRY,
 317                    "slap_sasl_authorize: conn %d authorization allowed\n",
 318                    (long)(conn ? conn->c_connid : -1 ) ));
 319 #else
 320         Debug( LDAP_DEBUG_TRACE, "SASL Authorize [conn=%ld]: "
 321                 " authorization allowed\n",
 322                 (long) (conn ? conn->c_connid : -1), 0, 0 );
 323 #endif
 324
 325
 326         ch_free( authcDN );
 327         *user = authzDN;
 328         *errstr = NULL;
 329         return SASL_OK;
 330 }
 331
 332
 333 static int
 334 slap_sasl_err2ldap( int saslerr )
 335 {
 336         int rc;
 337
 338         switch (saslerr) {
 339                 case SASL_CONTINUE:
 340                         rc = LDAP_SASL_BIND_IN_PROGRESS;
 341                         break;
 342                 case SASL_FAIL:
 343                         rc = LDAP_OTHER;
 344                         break;
 345                 case SASL_NOMEM:
 346                         rc = LDAP_OTHER;
 347                         break;
 348                 case SASL_NOMECH:
 349                         rc = LDAP_AUTH_METHOD_NOT_SUPPORTED;
 350                         break;
 351                 case SASL_BADAUTH:
 352                         rc = LDAP_INVALID_CREDENTIALS;
 353                         break;
 354                 case SASL_NOAUTHZ:
 355                         rc = LDAP_INSUFFICIENT_ACCESS;
 356                         break;
 357                 case SASL_TOOWEAK:
 358                 case SASL_ENCRYPT:
 359                         rc = LDAP_INAPPROPRIATE_AUTH;
 360                         break;
 361                 default:
 362                         rc = LDAP_OTHER;
 363                         break;
 364         }
 365
 366         return rc;
 367 }
 368 #endif
 369
 370
 371 int slap_sasl_init( void )
 372 {
 373 #ifdef HAVE_CYRUS_SASL
 374         int rc;
 375         static sasl_callback_t server_callbacks[] = {
 376                 { SASL_CB_LOG, &slap_sasl_log, NULL },
 377                 { SASL_CB_LIST_END, NULL, NULL }
 378         };
 379
 380         sasl_set_alloc(
 381                 ch_malloc,
 382                 ch_calloc,
 383                 ch_realloc,
 384                 ch_free );
 385
 386         sasl_set_mutex(
 387                 ldap_pvt_sasl_mutex_new,
 388                 ldap_pvt_sasl_mutex_lock,
 389                 ldap_pvt_sasl_mutex_unlock,
 390                 ldap_pvt_sasl_mutex_dispose );
 391
 392         /* should provide callbacks for logging */
 393         /* server name should be configurable */
 394         rc = sasl_server_init( server_callbacks, "slapd" );
 395
 396         if( rc != SASL_OK ) {
 397 #ifdef NEW_LOGGING
 398                 LDAP_LOG(( "sasl", LDAP_LEVEL_INFO,
 399                            "slap_sasl_init: init failed.\n" ));
 400 #else
 401                 Debug( LDAP_DEBUG_ANY, "sasl_server_init failed\n",
 402                         0, 0, 0 );
 403 #endif
 404
 405                 return -1;
 406         }
 407
 408 #ifdef NEW_LOGGING
 409         LDAP_LOG(( "sasl", LDAP_LEVEL_INFO,
 410                    "slap_sasl_init: initialized!\n"));
 411 #else
 412         Debug( LDAP_DEBUG_TRACE, "slap_sasl_init: initialized!\n",
 413                 0, 0, 0 );
 414 #endif
 415
 416
 417         /* default security properties */
 418         memset( &sasl_secprops, '\0', sizeof(sasl_secprops) );
 419     sasl_secprops.max_ssf = INT_MAX;
 420     sasl_secprops.maxbufsize = 65536;
 421     sasl_secprops.security_flags = SASL_SEC_NOPLAINTEXT|SASL_SEC_NOANONYMOUS;
 422 #endif
 423
 424         return 0;
 425 }
 426
 427 int slap_sasl_destroy( void )
 428 {
 429 #ifdef HAVE_CYRUS_SASL
 430         sasl_done();
 431 #endif
 432         free( global_host );
 433         global_host = NULL;
 434
 435         return 0;
 436 }
 437
 438 int slap_sasl_open( Connection *conn )
 439 {
 440         int sc = LDAP_SUCCESS;
 441
 442 #ifdef HAVE_CYRUS_SASL
 443         sasl_conn_t *ctx = NULL;
 444         sasl_callback_t *session_callbacks;
 445
 446         assert( conn->c_sasl_context == NULL );
 447         assert( conn->c_sasl_extra == NULL );
 448
 449         conn->c_sasl_layers = 0;
 450
 451         session_callbacks =
 452                 ch_calloc( 3, sizeof(sasl_callback_t));
 453         conn->c_sasl_extra = session_callbacks;
 454
 455         session_callbacks[0].id = SASL_CB_LOG;
 456         session_callbacks[0].proc = &slap_sasl_log;
 457         session_callbacks[0].context = conn;
 458
 459         session_callbacks[1].id = SASL_CB_PROXY_POLICY;
 460         session_callbacks[1].proc = &slap_sasl_authorize;
 461         session_callbacks[1].context = conn;
 462
 463         session_callbacks[2].id = SASL_CB_LIST_END;
 464         session_callbacks[2].proc = NULL;
 465         session_callbacks[2].context = NULL;
 466
 467         if( global_host == NULL ) {
 468                 global_host = ldap_pvt_get_fqdn( NULL );
 469         }
 470
 471         /* create new SASL context */
 472         sc = sasl_server_new( "ldap", global_host, global_realm,
 473                 session_callbacks, SASL_SECURITY_LAYER, &ctx );
 474
 475         if( sc != SASL_OK ) {
 476 #ifdef NEW_LOGGING
 477                 LDAP_LOG(( "sasl", LDAP_LEVEL_ERR,
 478                            "slap_sasl_open: sasl_server_new failed: %d\n", sc ));
 479 #else
 480                 Debug( LDAP_DEBUG_ANY, "sasl_server_new failed: %d\n",
 481                         sc, 0, 0 );
 482 #endif
 483
 484                 return -1;
 485         }
 486
 487         conn->c_sasl_context = ctx;
 488
 489         if( sc == SASL_OK ) {
 490                 sc = sasl_setprop( ctx,
 491                         SASL_SEC_PROPS, &sasl_secprops );
 492
 493                 if( sc != SASL_OK ) {
 494 #ifdef NEW_LOGGING
 495                         LDAP_LOG(( "sasl", LDAP_LEVEL_ERR,
 496                                    "slap_sasl_open: sasl_setprop failed: %d \n", sc ));
 497 #else
 498                         Debug( LDAP_DEBUG_ANY, "sasl_setprop failed: %d\n",
 499                                 sc, 0, 0 );
 500 #endif
 501
 502                         slap_sasl_close( conn );
 503                         return -1;
 504                 }
 505         }
 506
 507         sc = slap_sasl_err2ldap( sc );
 508 #endif
 509         return sc;
 510 }
 511
 512 int slap_sasl_external(
 513         Connection *conn,
 514         slap_ssf_t ssf,
 515         const char *auth_id )
 516 {
 517 #ifdef HAVE_CYRUS_SASL
 518         int sc;
 519         sasl_conn_t *ctx = conn->c_sasl_context;
 520         sasl_external_properties_t extprops;
 521
 522         if ( ctx == NULL ) {
 523                 return LDAP_UNAVAILABLE;
 524         }
 525
 526         memset( &extprops, '\0', sizeof(extprops) );
 527         extprops.ssf = ssf;
 528         extprops.auth_id = (char *) auth_id;
 529
 530         sc = sasl_setprop( ctx, SASL_SSF_EXTERNAL,
 531                 (void *) &extprops );
 532
 533         if ( sc != SASL_OK ) {
 534                 return LDAP_OTHER;
 535         }
 536 #endif
 537
 538         return LDAP_SUCCESS;
 539 }
 540
 541 int slap_sasl_reset( Connection *conn )
 542 {
 543 #ifdef HAVE_CYRUS_SASL
 544         sasl_conn_t *ctx = conn->c_sasl_context;
 545
 546         if( ctx != NULL ) {
 547         }
 548 #endif
 549         /* must return "anonymous" */
 550         return LDAP_SUCCESS;
 551 }
 552
 553 char ** slap_sasl_mechs( Connection *conn )
 554 {
 555         char **mechs = NULL;
 556
 557 #ifdef HAVE_CYRUS_SASL
 558         sasl_conn_t *ctx = conn->c_sasl_context;
 559
 560         if( ctx != NULL ) {
 561                 int sc;
 562                 char *mechstr;
 563
 564                 sc = sasl_listmech( ctx,
 565                         NULL, NULL, ",", NULL,
 566                         &mechstr, NULL, NULL );
 567
 568                 if( sc != SASL_OK ) {
 569 #ifdef NEW_LOGGING
 570                         LDAP_LOG(( "sasl", LDAP_LEVEL_ERR,
 571                                 "slap_sasl_mechs: sasl_listmech failed: %d\n", sc ));
 572 #else
 573                         Debug( LDAP_DEBUG_ANY, "slap_sasl_listmech failed: %d\n",
 574                                 sc, 0, 0 );
 575 #endif
 576
 577                         return NULL;
 578                 }
 579
 580                 mechs = str2charray( mechstr, "," );
 581
 582                 ch_free( mechstr );
 583         }
 584 #endif
 585
 586         return mechs;
 587 }
 588
 589 int slap_sasl_close( Connection *conn )
 590 {
 591 #ifdef HAVE_CYRUS_SASL
 592         sasl_conn_t *ctx = conn->c_sasl_context;
 593
 594         if( ctx != NULL ) {
 595                 sasl_dispose( &ctx );
 596         }
 597
 598         conn->c_sasl_context = NULL;
 599
 600         free( conn->c_sasl_extra );
 601         conn->c_sasl_extra = NULL;
 602 #endif
 603
 604         return LDAP_SUCCESS;
 605 }
 606
 607 int slap_sasl_bind(
 608     Connection          *conn,
 609     Operation           *op,
 610     struct berval       *dn,
 611     struct berval       *ndn,
 612     struct berval       *cred,
 613         char                    **edn,
 614         slap_ssf_t              *ssfp )
 615 {
 616         int rc = 1;
 617
 618 #ifdef HAVE_CYRUS_SASL
 619         sasl_conn_t *ctx = conn->c_sasl_context;
 620         struct berval response;
 621         unsigned reslen = 0;
 622         const char *errstr;
 623         int sc;
 624
 625 #ifdef NEW_LOGGING
 626         LDAP_LOG(( "sasl", LDAP_LEVEL_ENTRY,
 627                 "sasl_bind: conn %ld dn=\"%s\" mech=%s datalen=%ld\n",
 628                 conn->c_connid,
 629                 dn->bv_len ? dn->bv_val : "",
 630                 conn->c_sasl_bind_in_progress ? "<continuing>" : conn->c_sasl_bind_mech,
 631                 cred ? cred->bv_len : 0 ));
 632 #else
 633         Debug(LDAP_DEBUG_ARGS,
 634                 "==> sasl_bind: dn=\"%s\" mech=%s datalen=%ld\n",
 635                 dn->bv_len ? dn->bv_val : "",
 636                 conn->c_sasl_bind_in_progress ? "<continuing>":conn->c_sasl_bind_mech,
 637                 cred ? cred->bv_len : 0 );
 638 #endif
 639
 640
 641         if( ctx == NULL ) {
 642                 send_ldap_result( conn, op, LDAP_UNAVAILABLE,
 643                         NULL, "SASL unavailable on this session", NULL, NULL );
 644                 return rc;
 645         }
 646
 647         if ( !conn->c_sasl_bind_in_progress ) {
 648                 sc = sasl_server_start( ctx,
 649                         conn->c_sasl_bind_mech,
 650                         cred->bv_len ? cred->bv_val : "",
 651                         cred->bv_len,
 652                         (char **)&response.bv_val, &reslen, &errstr );
 653
 654         } else {
 655                 sc = sasl_server_step( ctx,
 656                         cred->bv_val, cred->bv_len,
 657                         (char **)&response.bv_val, &reslen, &errstr );
 658         }
 659
 660         response.bv_len = reslen;
 661
 662         if ( sc == SASL_OK ) {
 663                 char *username = NULL;
 664
 665                 sc = sasl_getprop( ctx,
 666                         SASL_USERNAME, (void **)&username );
 667
 668                 if ( sc != SASL_OK ) {
 669 #ifdef NEW_LOGGING
 670                         LDAP_LOG(( "sasl", LDAP_LEVEL_ERR,
 671                                 "slap_sasl_bind: getprop(USERNAME) failed: %d\n", sc ));
 672 #else
 673                         Debug(LDAP_DEBUG_TRACE,
 674                                 "slap_sasl_bind: getprop(USERNAME) failed!\n",
 675                                 0, 0, 0);
 676 #endif
 677
 678
 679                         send_ldap_result( conn, op, rc = slap_sasl_err2ldap( sc ),
 680                                 NULL, "no SASL username", NULL, NULL );
 681
 682                 } else {
 683                         rc = slap_sasl_getdn( conn, username, edn, FLAG_GETDN_FINAL );
 684
 685                         if( rc == LDAP_SUCCESS ) {
 686                                 int i;
 687                                 sasl_ssf_t *ssf = NULL;
 688                                 (void) sasl_getprop( ctx, SASL_SSF, (void *)&ssf );
 689                                 *ssfp = ssf ? *ssf : 0;
 690
 691                                 if( *ssfp ) {
 692                                         ldap_pvt_thread_mutex_lock( &conn->c_mutex );
 693                                         conn->c_sasl_layers++;
 694                                         ldap_pvt_thread_mutex_unlock( &conn->c_mutex );
 695                                 }
 696
 697                                 /* Store the authorization DN as a subjectDN */
 698                                 if ( *edn ) {
 699                                         i = 2;
 700                                         do {
 701                                                 i++;
 702                                                 (*edn)[i-3] = (*edn)[i];
 703                                         } while( (*edn)[i] );
 704                                 }
 705
 706                                 send_ldap_sasl( conn, op, rc,
 707                                         NULL, NULL, NULL, NULL,
 708                                         response.bv_len ? &response : NULL );
 709
 710                         } else {
 711                                 send_ldap_result( conn, op, rc,
 712                                         NULL, errstr, NULL, NULL );
 713                         }
 714                 }
 715
 716         } else if ( sc == SASL_CONTINUE ) {
 717                 send_ldap_sasl( conn, op, rc = LDAP_SASL_BIND_IN_PROGRESS,
 718                         NULL, NULL, NULL, NULL, &response );
 719
 720         } else {
 721                 send_ldap_result( conn, op, rc = slap_sasl_err2ldap( sc ),
 722                         NULL, errstr, NULL, NULL );
 723         }
 724
 725         if( response.bv_len ) {
 726                 ch_free( response.bv_val );
 727         }
 728
 729 #ifdef NEW_LOGGING
 730         LDAP_LOG(( "sasl", LDAP_LEVEL_ENTRY,
 731                 "slap_sasl_bind: rc=%d\n", rc ));
 732 #else
 733         Debug(LDAP_DEBUG_TRACE, "<== slap_sasl_bind: rc=%d\n", rc, 0, 0);
 734 #endif
 735
 736
 737 #else
 738         send_ldap_result( conn, op, rc = LDAP_UNAVAILABLE,
 739                 NULL, "SASL not supported", NULL, NULL );
 740 #endif
 741
 742         return rc;
 743 }
 744
 745 char* slap_sasl_secprops( const char *in )
 746 {
 747 #ifdef HAVE_CYRUS_SASL
 748         int rc = ldap_pvt_sasl_secprops( in, &sasl_secprops );
 749
 750         return rc == LDAP_SUCCESS ? NULL : "Invalid security properties";
 751 #else
 752         return "SASL not supported";
 753 #endif
 754 }