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

   1 /* $OpenLDAP$ */
   2 /*
   3  * Copyright 1998-2000 The OpenLDAP Foundation, All Rights Reserved.
   4  * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
   5  */
   6
   7 #include "portable.h"
   8
   9 #include <ac/stdlib.h>
  10 #include <stdio.h>
  11
  12 #include <lber.h>
  13 #include <ldap_log.h>
  14
  15 #include "slap.h"
  16
  17 #ifdef HAVE_CYRUS_SASL
  18 #include <limits.h>
  19 #include <sasl.h>
  20
  21 #include <ldap_pvt.h>
  22
  23 #ifdef SLAPD_SPASSWD
  24 #include <lutil.h>
  25 #endif
  26
  27
  28 static sasl_security_properties_t sasl_secprops;
  29
  30 static int
  31 slap_sasl_log(
  32         void *context,
  33         int priority,
  34         const char *message)
  35 {
  36         Connection *conn = context;
  37         int level;
  38         const char * label;
  39
  40         if ( message == NULL ) {
  41                 return SASL_BADPARAM;
  42         }
  43
  44         switch (priority) {
  45         case SASL_LOG_ERR:
  46                 level = LDAP_DEBUG_ANY;
  47                 label = "Error";
  48                 break;
  49         case SASL_LOG_WARNING:
  50                 level = LDAP_DEBUG_TRACE;
  51                 label = "Warning";
  52                 break;
  53         case SASL_LOG_INFO:
  54                 level = LDAP_DEBUG_TRACE;
  55                 label = "Info";
  56                 break;
  57         default:
  58                 return SASL_BADPARAM;
  59         }
  60
  61 #ifdef NEW_LOGGING
  62         LDAP_LOG(( "sasl", LDAP_LEVEL_ENTRY,
  63                 "SASL [conn=%ld] %s: %s\n",
  64                 conn ? conn->c_connid : -1,
  65                 label, message ));
  66 #else
  67         Debug( level, "SASL [conn=%ld] %s: %s\n",
  68                 conn ? conn->c_connid: -1,
  69                 label, message );
  70 #endif
  71
  72
  73         return SASL_OK;
  74 }
  75
  76
  77 /* Take any sort of identity string and return a DN with the "dn:" prefix. The
  78    string returned in *dnptr is in its own allocated memory, and must be free'd
  79    by the calling process.
  80    -Mark Adamson, Carnegie Mellon
  81 */
  82
  83 int slap_sasl_getdn( Connection *conn, char *id, char **dnptr, int flags )
  84 {
  85         char *c=NULL, *c1, *dn=NULL;
  86         int rc, len;
  87         sasl_conn_t *ctx;
  88
  89
  90 #ifdef NEW_LOGGING
  91         LDAP_LOG(( "sasl", LDAP_LEVEL_ENTRY,
  92                 "slap_sasl_getdn: conn %d id=%s\n",
  93                 conn ? conn->c_connid : -1,
  94                 id ? (*id ? id : "<empty>") : "NULL" ));
  95 #else
  96         Debug( LDAP_DEBUG_ARGS, "slap_sasl_getdn: id=%s\n",
  97       id?(*id?id:"<empty>"):"NULL",0,0 );
  98 #endif
  99
 100
 101         /* Blatantly anonymous ID */
 102         len = sizeof( "anonymous" ) - 1;
 103         if( id && ( id[len] == '\0' || id[len] == '@' ) &&
 104                 !strncasecmp( id, "anonymous", len) ) {
 105                 *dnptr = NULL;
 106                 return( LDAP_SUCCESS );
 107         }
 108         ctx = conn->c_sasl_context;
 109         len = strlen( id );
 110
 111         /* An authcID needs to be converted to authzID form */
 112         if( flags & FLAG_GETDN_AUTHCID ) {
 113                 if( sasl_external_x509dn_convert && conn->c_sasl_bind_mech
 114                         && ( strcasecmp( "EXTERNAL", conn->c_sasl_bind_mech ) == 0 )
 115                         && len && id[0] == '/' /* && id[len-1]== '/' */)
 116                 {
 117                         /* check SASL external for X.509 style DN and */
 118                         /* convert to dn:<dn> form */
 119                         char *tmpdn = ldap_dcedn2dn( id );
 120                         len = strlen( tmpdn );
 121
 122                         dn = ch_malloc( len+4 );
 123                         dn[0] = 'd';
 124                         dn[1] = 'n';
 125                         dn[2] = ':';
 126                         memmove( &dn[3], tmpdn, len+1 );
 127                         len += 3;
 128
 129                 } else {
 130                         /* convert to u:<username> form */
 131                         dn = ch_malloc( len+3 );
 132                         dn[0] = 'u';
 133                         dn[1] = ':';
 134                         memmove( &dn[2], id, len+1 );
 135                         len += 2;
 136                 }
 137         } else {
 138                 dn = ch_strdup( id );
 139         }
 140
 141         /* An authzID must be properly prefixed */
 142         if( flags & FLAG_GETDN_AUTHZID
 143                 && strncasecmp( dn, "u:", 2 )
 144                 && strncasecmp( dn, "dn:", 3 ) )
 145         {
 146                 ch_free( dn );
 147                 *dnptr = NULL;
 148                 return( LDAP_INAPPROPRIATE_AUTH );
 149         }
 150
 151         /* Username strings */
 152         if( !strncasecmp( dn, "u:", 2 ) ) {
 153                 int len1  = strlen( ",cn=auth" );
 154                 len += strlen( "dn:uid=" ) + len1;
 155
 156                 /* Figure out how much data we have for the dn */
 157                 rc = sasl_getprop( ctx, SASL_REALM, (void **)&c );
 158                 if( rc != SASL_OK && rc != SASL_NOTDONE ) {
 159 #ifdef NEW_LOGGING
 160                         LDAP_LOG(( "sasl", LDAP_LEVEL_ERR,
 161                                 "slap_sasl_getdn: getprop(REALM) failed.\n" ));
 162 #else
 163                         Debug(LDAP_DEBUG_TRACE,
 164                                 "getdn: getprop(REALM) failed!\n", 0,0,0);
 165 #endif
 166
 167                         ch_free( dn );
 168                         *dnptr = NULL;
 169                         return( LDAP_OPERATIONS_ERROR );
 170                 }
 171
 172                 if( c && *c ) {
 173                         len += strlen( c ) + strlen(",cn=" );
 174                 }
 175
 176                 if( conn->c_sasl_bind_mech ) {
 177                         len += strlen( conn->c_sasl_bind_mech ) + strlen( ",cn=" );
 178                 }
 179
 180                 /* Build the new dn */
 181                 c1 = dn;
 182                 dn = ch_malloc( len );
 183                 len = sprintf( dn, "dn:uid=%s", c1+2 );
 184                 ch_free( c1 );
 185
 186                 if( c ) {
 187                         len += sprintf( dn+len, ",cn=%s", c );
 188                 }
 189                 if( conn->c_sasl_bind_mech ) {
 190                         len += sprintf( dn+len, ",cn=%s", conn->c_sasl_bind_mech );
 191                 }
 192                 strcpy( dn+len, ",cn=auth" );
 193                 len += len1;
 194
 195 #ifdef NEW_LOGGING
 196                 LDAP_LOG(( "sasl", LDAP_LEVEL_ENTRY,
 197                         "slap_sasl_getdn: u:id converted to %s.\n", dn ));
 198 #else
 199                 Debug( LDAP_DEBUG_TRACE, "getdn: u:id converted to %s\n", dn,0,0 );
 200 #endif
 201         }
 202
 203         /* DN strings that are a cn=auth identity to run through regexp */
 204         if( !strncasecmp( dn, "dn:", 3) &&
 205                 ( ( flags & FLAG_GETDN_FINAL ) == 0 ) )
 206         {
 207                 c1 = slap_sasl2dn( dn + 3 );
 208                 if( c1 ) {
 209                         ch_free( dn );
 210                         dn = c1;
 211                         /* Reaffix the dn: prefix if it was removed */
 212                         if( strncasecmp( dn, "dn:", 3) ) {
 213                                 c1 = dn;
 214                                 dn = ch_malloc( strlen( c1 ) + 4 );
 215                                 sprintf( dn, "dn:%s", c1 );
 216                                 ch_free( c1 );
 217                         }
 218
 219 #ifdef NEW_LOGGING
 220                         LDAP_LOG(( "sasl", LDAP_LEVEL_ENTRY,
 221                                 "slap_sasl_getdn: dn:id converted to %s.\n", dn ));
 222 #else
 223                         Debug( LDAP_DEBUG_TRACE, "getdn: dn:id converted to %s\n",
 224                                 dn, 0, 0 );
 225 #endif
 226                 }
 227         }
 228
 229         if( ( flags & FLAG_GETDN_FINAL ) == 0 )  {
 230                 dn_normalize( dn+3 );
 231         }
 232
 233         *dnptr = dn;
 234         return( LDAP_SUCCESS );
 235 }
 236
 237
 238
 239 static int
 240 slap_sasl_authorize(
 241         void *context,
 242         const char *authcid,
 243         const char *authzid,
 244         const char **user,
 245         const char **errstr)
 246 {
 247         char *authcDN, *authzDN;
 248         int rc;
 249         Connection *conn = context;
 250
 251         *user = NULL;
 252
 253 #ifdef NEW_LOGGING
 254         LDAP_LOG(( "sasl", LDAP_LEVEL_ENTRY,
 255                    "slap_sas_authorize: conn %d  authcid=\"%s\" authzid=\"%s\"\n",
 256                    conn ? conn->c_connid : -1,
 257                    authcid ? authcid : "<empty>",
 258                    authzid ? authzid : "<empty>" ));
 259 #else
 260         Debug( LDAP_DEBUG_ARGS, "SASL Authorize [conn=%ld]: "
 261                 "authcid=\"%s\" authzid=\"%s\"\n",
 262                 (long) (conn ? conn->c_connid : -1),
 263                 authcid ? authcid : "<empty>",
 264                 authzid ? authzid : "<empty>" );
 265 #endif
 266
 267
 268         /* Convert the identities to DN's. If no authzid was given, client will
 269            be bound as the DN matching their username */
 270         rc = slap_sasl_getdn( conn, (char *)authcid, &authcDN, FLAG_GETDN_AUTHCID );
 271         if( rc != LDAP_SUCCESS ) {
 272                 *errstr = ldap_err2string( rc );
 273                 return SASL_NOAUTHZ;
 274         }
 275         if( ( authzid == NULL ) || !strcmp( authcid,authzid ) ) {
 276 #ifdef NEW_LOGGING
 277                 LDAP_LOG(( "sasl", LDAP_LEVEL_ENTRY,
 278                            "slap_sasl_authorize: conn %d  Using authcDN=%s\n",
 279                            conn ? conn->c_connid : -1, authcDN ));
 280 #else
 281                 Debug( LDAP_DEBUG_TRACE, "SASL Authorize [conn=%ld]: "
 282                  "Using authcDN=%s\n", (long) (conn ? conn->c_connid : -1), authcDN,0 );
 283 #endif
 284
 285                 *user = authcDN;
 286                 *errstr = NULL;
 287                 return SASL_OK;
 288         }
 289         rc = slap_sasl_getdn( conn, (char *)authzid, &authzDN, FLAG_GETDN_AUTHZID );
 290         if( rc != LDAP_SUCCESS ) {
 291                 ch_free( authcDN );
 292                 *errstr = ldap_err2string( rc );
 293                 return SASL_NOAUTHZ;
 294         }
 295
 296         rc = slap_sasl_authorized( authcDN, authzDN );
 297         if( rc ) {
 298 #ifdef NEW_LOGGING
 299                 LDAP_LOG(( "sasl", LDAP_LEVEL_INFO,
 300                            "slap_sasl_authorize: conn %ld  authorization disallowed (%d)\n",
 301                            (long)(conn ? conn->c_connid : -1), rc ));
 302 #else
 303                 Debug( LDAP_DEBUG_TRACE, "SASL Authorize [conn=%ld]: "
 304                         " authorization disallowed (%d)\n",
 305                         (long) (conn ? conn->c_connid : -1), rc, 0 );
 306 #endif
 307
 308                 *errstr = "not authorized";
 309                 ch_free( authcDN );
 310                 ch_free( authzDN );
 311                 return SASL_NOAUTHZ;
 312         }
 313
 314 #ifdef NEW_LOGGING
 315         LDAP_LOG(( "sasl", LDAP_LEVEL_ENTRY,
 316                    "slap_sasl_authorize: conn %d authorization allowed\n",
 317                    (long)(conn ? conn->c_connid : -1 ) ));
 318 #else
 319         Debug( LDAP_DEBUG_TRACE, "SASL Authorize [conn=%ld]: "
 320                 " authorization allowed\n",
 321                 (long) (conn ? conn->c_connid : -1), 0, 0 );
 322 #endif
 323
 324
 325         ch_free( authcDN );
 326         *user = authzDN;
 327         *errstr = NULL;
 328         return SASL_OK;
 329 }
 330
 331
 332 static int
 333 slap_sasl_err2ldap( int saslerr )
 334 {
 335         int rc;
 336
 337         switch (saslerr) {
 338                 case SASL_CONTINUE:
 339                         rc = LDAP_SASL_BIND_IN_PROGRESS;
 340                         break;
 341                 case SASL_FAIL:
 342                         rc = LDAP_OTHER;
 343                         break;
 344                 case SASL_NOMEM:
 345                         rc = LDAP_OTHER;
 346                         break;
 347                 case SASL_NOMECH:
 348                         rc = LDAP_AUTH_METHOD_NOT_SUPPORTED;
 349                         break;
 350                 case SASL_BADAUTH:
 351                         rc = LDAP_INVALID_CREDENTIALS;
 352                         break;
 353                 case SASL_NOAUTHZ:
 354                         rc = LDAP_INSUFFICIENT_ACCESS;
 355                         break;
 356                 case SASL_TOOWEAK:
 357                 case SASL_ENCRYPT:
 358                         rc = LDAP_INAPPROPRIATE_AUTH;
 359                         break;
 360                 default:
 361                         rc = LDAP_OTHER;
 362                         break;
 363         }
 364
 365         return rc;
 366 }
 367 #endif
 368
 369
 370 int slap_sasl_init( void )
 371 {
 372 #ifdef HAVE_CYRUS_SASL
 373         int rc;
 374         static sasl_callback_t server_callbacks[] = {
 375                 { SASL_CB_LOG, &slap_sasl_log, NULL },
 376                 { SASL_CB_LIST_END, NULL, NULL }
 377         };
 378
 379         sasl_set_alloc(
 380                 ch_malloc,
 381                 ch_calloc,
 382                 ch_realloc,
 383                 ch_free );
 384
 385         sasl_set_mutex(
 386                 ldap_pvt_sasl_mutex_new,
 387                 ldap_pvt_sasl_mutex_lock,
 388                 ldap_pvt_sasl_mutex_unlock,
 389                 ldap_pvt_sasl_mutex_dispose );
 390
 391         /* should provide callbacks for logging */
 392         /* server name should be configurable */
 393         rc = sasl_server_init( server_callbacks, "slapd" );
 394
 395         if( rc != SASL_OK ) {
 396 #ifdef NEW_LOGGING
 397                 LDAP_LOG(( "sasl", LDAP_LEVEL_INFO,
 398                            "slap_sasl_init: init failed.\n" ));
 399 #else
 400                 Debug( LDAP_DEBUG_ANY, "sasl_server_init failed\n",
 401                         0, 0, 0 );
 402 #endif
 403
 404                 return -1;
 405         }
 406
 407 #ifdef NEW_LOGGING
 408         LDAP_LOG(( "sasl", LDAP_LEVEL_INFO,
 409                    "slap_sasl_init: initialized!\n"));
 410 #else
 411         Debug( LDAP_DEBUG_TRACE, "slap_sasl_init: initialized!\n",
 412                 0, 0, 0 );
 413 #endif
 414
 415
 416         /* default security properties */
 417         memset( &sasl_secprops, '\0', sizeof(sasl_secprops) );
 418     sasl_secprops.max_ssf = INT_MAX;
 419     sasl_secprops.maxbufsize = 65536;
 420     sasl_secprops.security_flags = SASL_SEC_NOPLAINTEXT|SASL_SEC_NOANONYMOUS;
 421 #endif
 422
 423         return 0;
 424 }
 425
 426 int slap_sasl_destroy( void )
 427 {
 428 #ifdef HAVE_CYRUS_SASL
 429         sasl_done();
 430 #endif
 431         free( global_host );
 432         global_host = NULL;
 433
 434         return 0;
 435 }
 436
 437 int slap_sasl_open( Connection *conn )
 438 {
 439         int sc = LDAP_SUCCESS;
 440
 441 #ifdef HAVE_CYRUS_SASL
 442         sasl_conn_t *ctx = NULL;
 443         sasl_callback_t *session_callbacks;
 444
 445         assert( conn->c_sasl_context == NULL );
 446         assert( conn->c_sasl_extra == NULL );
 447
 448         conn->c_sasl_layers = 0;
 449
 450         session_callbacks =
 451                 ch_calloc( 3, sizeof(sasl_callback_t));
 452         conn->c_sasl_extra = session_callbacks;
 453
 454         session_callbacks[0].id = SASL_CB_LOG;
 455         session_callbacks[0].proc = &slap_sasl_log;
 456         session_callbacks[0].context = conn;
 457
 458         session_callbacks[1].id = SASL_CB_PROXY_POLICY;
 459         session_callbacks[1].proc = &slap_sasl_authorize;
 460         session_callbacks[1].context = conn;
 461
 462         session_callbacks[2].id = SASL_CB_LIST_END;
 463         session_callbacks[2].proc = NULL;
 464         session_callbacks[2].context = NULL;
 465
 466         if( global_host == NULL ) {
 467                 global_host = ldap_pvt_get_fqdn( NULL );
 468         }
 469
 470         /* create new SASL context */
 471         sc = sasl_server_new( "ldap", global_host, global_realm,
 472                 session_callbacks, SASL_SECURITY_LAYER, &ctx );
 473
 474         if( sc != SASL_OK ) {
 475 #ifdef NEW_LOGGING
 476                 LDAP_LOG(( "sasl", LDAP_LEVEL_ERR,
 477                            "slap_sasl_open: sasl_server_new failed: %d\n", sc ));
 478 #else
 479                 Debug( LDAP_DEBUG_ANY, "sasl_server_new failed: %d\n",
 480                         sc, 0, 0 );
 481 #endif
 482
 483                 return -1;
 484         }
 485
 486         conn->c_sasl_context = ctx;
 487
 488         if( sc == SASL_OK ) {
 489                 sc = sasl_setprop( ctx,
 490                         SASL_SEC_PROPS, &sasl_secprops );
 491
 492                 if( sc != SASL_OK ) {
 493 #ifdef NEW_LOGGING
 494                         LDAP_LOG(( "sasl", LDAP_LEVEL_ERR,
 495                                    "slap_sasl_open: sasl_setprop failed: %d \n", sc ));
 496 #else
 497                         Debug( LDAP_DEBUG_ANY, "sasl_setprop failed: %d\n",
 498                                 sc, 0, 0 );
 499 #endif
 500
 501                         slap_sasl_close( conn );
 502                         return -1;
 503                 }
 504         }
 505
 506         sc = slap_sasl_err2ldap( sc );
 507 #endif
 508         return sc;
 509 }
 510
 511 int slap_sasl_external(
 512         Connection *conn,
 513         slap_ssf_t ssf,
 514         const char *auth_id )
 515 {
 516 #ifdef HAVE_CYRUS_SASL
 517         int sc;
 518         sasl_conn_t *ctx = conn->c_sasl_context;
 519         sasl_external_properties_t extprops;
 520
 521         if ( ctx == NULL ) {
 522                 return LDAP_UNAVAILABLE;
 523         }
 524
 525         memset( &extprops, '\0', sizeof(extprops) );
 526         extprops.ssf = ssf;
 527         extprops.auth_id = (char *) auth_id;
 528
 529         sc = sasl_setprop( ctx, SASL_SSF_EXTERNAL,
 530                 (void *) &extprops );
 531
 532         if ( sc != SASL_OK ) {
 533                 return LDAP_OTHER;
 534         }
 535 #endif
 536
 537         return LDAP_SUCCESS;
 538 }
 539
 540 int slap_sasl_reset( Connection *conn )
 541 {
 542 #ifdef HAVE_CYRUS_SASL
 543         sasl_conn_t *ctx = conn->c_sasl_context;
 544
 545         if( ctx != NULL ) {
 546         }
 547 #endif
 548         /* must return "anonymous" */
 549         return LDAP_SUCCESS;
 550 }
 551
 552 char ** slap_sasl_mechs( Connection *conn )
 553 {
 554         char **mechs = NULL;
 555
 556 #ifdef HAVE_CYRUS_SASL
 557         sasl_conn_t *ctx = conn->c_sasl_context;
 558
 559         if( ctx != NULL ) {
 560                 int sc;
 561                 char *mechstr;
 562
 563                 sc = sasl_listmech( ctx,
 564                         NULL, NULL, ",", NULL,
 565                         &mechstr, NULL, NULL );
 566
 567                 if( sc != SASL_OK ) {
 568 #ifdef NEW_LOGGING
 569                         LDAP_LOG(( "sasl", LDAP_LEVEL_ERR,
 570                                    "slap_sasl_mechs: sasl_listmech failed: %d\n", sc ));
 571 #else
 572                         Debug( LDAP_DEBUG_ANY, "slap_sasl_listmech failed: %d\n",
 573                                 sc, 0, 0 );
 574 #endif
 575
 576                         return NULL;
 577                 }
 578
 579                 mechs = str2charray( mechstr, "," );
 580
 581                 ch_free( mechstr );
 582         }
 583 #endif
 584
 585         return mechs;
 586 }
 587
 588 int slap_sasl_close( Connection *conn )
 589 {
 590 #ifdef HAVE_CYRUS_SASL
 591         sasl_conn_t *ctx = conn->c_sasl_context;
 592
 593         if( ctx != NULL ) {
 594                 sasl_dispose( &ctx );
 595         }
 596
 597         conn->c_sasl_context = NULL;
 598
 599         free( conn->c_sasl_extra );
 600         conn->c_sasl_extra = NULL;
 601 #endif
 602
 603         return LDAP_SUCCESS;
 604 }
 605
 606 int slap_sasl_bind(
 607     Connection          *conn,
 608     Operation           *op,
 609     struct berval       *dn,
 610     struct berval       *ndn,
 611     struct berval       *cred,
 612         char                    **edn,
 613         slap_ssf_t              *ssfp )
 614 {
 615         int rc = 1;
 616
 617 #ifdef HAVE_CYRUS_SASL
 618         sasl_conn_t *ctx = conn->c_sasl_context;
 619         struct berval response;
 620         unsigned reslen = 0;
 621         const char *errstr;
 622         int sc;
 623
 624 #ifdef NEW_LOGGING
 625         LDAP_LOG(( "sasl", LDAP_LEVEL_ENTRY,
 626                 "sasl_bind: conn %ld dn=\"%s\" mech=%s datalen=%ld\n",
 627                 conn->c_connid,
 628                 dn->bv_len ? dn->bv_val : "",
 629                 conn->c_sasl_bind_in_progress ? "<continuing>" : conn->c_sasl_bind_mech,
 630                 cred ? cred->bv_len : 0 ));
 631 #else
 632         Debug(LDAP_DEBUG_ARGS,
 633                 "==> sasl_bind: dn=\"%s\" mech=%s datalen=%ld\n",
 634                 dn->bv_len ? dn->bv_val : "",
 635                 conn->c_sasl_bind_in_progress ? "<continuing>":conn->c_sasl_bind_mech,
 636                 cred ? cred->bv_len : 0 );
 637 #endif
 638
 639
 640         if( ctx == NULL ) {
 641                 send_ldap_result( conn, op, LDAP_UNAVAILABLE,
 642                         NULL, "SASL unavailable on this session", NULL, NULL );
 643                 return rc;
 644         }
 645
 646         if ( !conn->c_sasl_bind_in_progress ) {
 647                 sc = sasl_server_start( ctx,
 648                         conn->c_sasl_bind_mech,
 649                         cred->bv_len ? cred->bv_val : "",
 650                         cred->bv_len,
 651                         (char **)&response.bv_val, &reslen, &errstr );
 652
 653         } else {
 654                 sc = sasl_server_step( ctx,
 655                         cred->bv_val, cred->bv_len,
 656                         (char **)&response.bv_val, &reslen, &errstr );
 657         }
 658
 659         response.bv_len = reslen;
 660
 661         if ( sc == SASL_OK ) {
 662                 char *username = NULL;
 663
 664                 sc = sasl_getprop( ctx,
 665                         SASL_USERNAME, (void **)&username );
 666
 667                 if ( sc != SASL_OK ) {
 668 #ifdef NEW_LOGGING
 669                         LDAP_LOG(( "sasl", LDAP_LEVEL_ERR,
 670                                 "slap_sasl_bind: getprop(USERNAME) failed: %d\n", sc ));
 671 #else
 672                         Debug(LDAP_DEBUG_TRACE,
 673                                 "slap_sasl_bind: getprop(USERNAME) failed!\n",
 674                                 0, 0, 0);
 675 #endif
 676
 677
 678                         send_ldap_result( conn, op, rc = slap_sasl_err2ldap( sc ),
 679                                 NULL, "no SASL username", NULL, NULL );
 680
 681                 } else {
 682                         rc = slap_sasl_getdn( conn, username, edn, FLAG_GETDN_FINAL );
 683
 684                         if( rc == LDAP_SUCCESS ) {
 685                                 int i;
 686                                 sasl_ssf_t *ssf = NULL;
 687                                 (void) sasl_getprop( ctx, SASL_SSF, (void *)&ssf );
 688                                 *ssfp = ssf ? *ssf : 0;
 689
 690                                 if( *ssfp ) {
 691                                         ldap_pvt_thread_mutex_lock( &conn->c_mutex );
 692                                         conn->c_sasl_layers++;
 693                                         ldap_pvt_thread_mutex_unlock( &conn->c_mutex );
 694                                 }
 695
 696                                 /* Store the authorization DN as a subjectDN */
 697                                 if ( *edn ) {
 698                                         i = 2;
 699                                         do {
 700                                                 i++;
 701                                                 (*edn)[i-3] = (*edn)[i];
 702                                         } while( (*edn)[i] );
 703                                 }
 704
 705                                 send_ldap_sasl( conn, op, rc,
 706                                         NULL, NULL, NULL, NULL,
 707                                         response.bv_len ? &response : NULL );
 708
 709                         } else {
 710                                 send_ldap_result( conn, op, rc,
 711                                         NULL, errstr, NULL, NULL );
 712                         }
 713                 }
 714
 715         } else if ( sc == SASL_CONTINUE ) {
 716                 send_ldap_sasl( conn, op, rc = LDAP_SASL_BIND_IN_PROGRESS,
 717                         NULL, NULL, NULL, NULL, &response );
 718
 719         } else {
 720                 send_ldap_result( conn, op, rc = slap_sasl_err2ldap( sc ),
 721                         NULL, errstr, NULL, NULL );
 722         }
 723
 724         if( response.bv_len ) {
 725                 ch_free( response.bv_val );
 726         }
 727
 728 #ifdef NEW_LOGGING
 729         LDAP_LOG(( "sasl", LDAP_LEVEL_ENTRY,
 730                 "slap_sasl_bind: rc=%d\n", rc ));
 731 #else
 732         Debug(LDAP_DEBUG_TRACE, "<== slap_sasl_bind: rc=%d\n", rc, 0, 0);
 733 #endif
 734
 735
 736 #else
 737         send_ldap_result( conn, op, rc = LDAP_UNAVAILABLE,
 738                 NULL, "SASL not supported", NULL, NULL );
 739 #endif
 740
 741         return rc;
 742 }
 743
 744 char* slap_sasl_secprops( const char *in )
 745 {
 746 #ifdef HAVE_CYRUS_SASL
 747         int rc = ldap_pvt_sasl_secprops( in, &sasl_secprops );
 748
 749         return rc == LDAP_SUCCESS ? NULL : "Invalid security properties";
 750 #else
 751         return "SASL not supported";
 752 #endif
 753 }