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 "slap.h"
  13 #include "proto-slap.h"
  14
  15 #include <lber.h>
  16 #include <ldap_log.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 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=%d] %s: %s\n",
  64                 conn ? conn->c_connid : -1,
  65                 label, message ));
  66 #else
  67         Debug( level, "SASL [conn=%d] %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 = strlen( "anonymous" );
 103         if( id && !strncasecmp( id, "anonymous", len) &&
 104                 ( id[len] == '\0' || id[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 && dn[0] == '/' && dn[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) && ( ( flags & FLAG_GETDN_FINAL ) == 0 ) ) {
 205                 c1 = slap_sasl2dn( dn + 3 );
 206                 if( c1 ) {
 207                         ch_free( dn );
 208                         dn = c1;
 209                         /* Reaffix the dn: prefix if it was removed */
 210                         if( strncasecmp( dn, "dn:", 3) ) {
 211                                 c1 = dn;
 212                                 dn = ch_malloc( strlen( c1 ) + 4 );
 213                                 sprintf( dn, "dn:%s", c1 );
 214                                 ch_free( c1 );
 215                         }
 216
 217 #ifdef NEW_LOGGING
 218                         LDAP_LOG(( "sasl", LDAP_LEVEL_ENTRY,
 219                                    "slap_sasl_getdn: dn:id converted to %s.\n", dn ));
 220 #else
 221                         Debug( LDAP_DEBUG_TRACE, "getdn: dn:id converted to %s\n", dn,0,0 );
 222 #endif
 223                 }
 224         }
 225
 226         if( ( flags & FLAG_GETDN_FINAL ) == 0 )  {
 227                 dn_normalize( dn+3 );
 228         }
 229
 230         *dnptr = dn;
 231         return( LDAP_SUCCESS );
 232 }
 233
 234
 235
 236 static int
 237 slap_sasl_authorize(
 238         void *context,
 239         const char *authcid,
 240         const char *authzid,
 241         const char **user,
 242         const char **errstr)
 243 {
 244         char *authcDN, *authzDN;
 245         int rc;
 246         Connection *conn = context;
 247
 248         *user = NULL;
 249
 250 #ifdef NEW_LOGGING
 251         LDAP_LOG(( "sasl", LDAP_LEVEL_ENTRY,
 252                    "slap_sas_authorize: conn %d  authcid=\"%s\" authzid=\"%s\"\n",
 253                    conn ? conn->c_connid : -1,
 254                    authcid ? authcid : "<empty>",
 255                    authzid ? authzid : "<empty>" ));
 256 #else
 257         Debug( LDAP_DEBUG_ARGS, "SASL Authorize [conn=%ld]: "
 258                 "authcid=\"%s\" authzid=\"%s\"\n",
 259                 (long) (conn ? conn->c_connid : -1),
 260                 authcid ? authcid : "<empty>",
 261                 authzid ? authzid : "<empty>" );
 262 #endif
 263
 264
 265         /* Convert the identities to DN's. If no authzid was given, client will
 266            be bound as the DN matching their username */
 267         rc = slap_sasl_getdn( conn, (char *)authcid, &authcDN, FLAG_GETDN_AUTHCID );
 268         if( rc != LDAP_SUCCESS ) {
 269                 *errstr = ldap_err2string( rc );
 270                 return SASL_NOAUTHZ;
 271         }
 272         if( ( authzid == NULL ) || !strcmp( authcid,authzid ) ) {
 273 #ifdef NEW_LOGGING
 274                 LDAP_LOG(( "sasl", LDAP_LEVEL_ENTRY,
 275                            "slap_sasl_authorize: conn %d  Using authcDN=%s\n",
 276                            conn ? conn->c_connid : -1, authcDN ));
 277 #else
 278                 Debug( LDAP_DEBUG_TRACE, "SASL Authorize [conn=%ld]: "
 279                  "Using authcDN=%s\n", (long) (conn ? conn->c_connid : -1), authcDN,0 );
 280 #endif
 281
 282                 *user = authcDN;
 283                 *errstr = NULL;
 284                 return SASL_OK;
 285         }
 286         rc = slap_sasl_getdn( conn, (char *)authzid, &authzDN, FLAG_GETDN_AUTHZID );
 287         if( rc != LDAP_SUCCESS ) {
 288                 ch_free( authcDN );
 289                 *errstr = ldap_err2string( rc );
 290                 return SASL_NOAUTHZ;
 291         }
 292
 293         rc = slap_sasl_authorized( authcDN, authzDN );
 294         if( rc ) {
 295 #ifdef NEW_LOGGING
 296                 LDAP_LOG(( "sasl", LDAP_LEVEL_INFO,
 297                            "slap_sasl_authorize: conn %ld  authorization disallowed (%d)\n",
 298                            (long)(conn ? conn->c_connid : -1), rc ));
 299 #else
 300                 Debug( LDAP_DEBUG_TRACE, "SASL Authorize [conn=%ld]: "
 301                         " authorization disallowed (%d)\n",
 302                         (long) (conn ? conn->c_connid : -1), rc, 0 );
 303 #endif
 304
 305                 *errstr = "not authorized";
 306                 ch_free( authcDN );
 307                 ch_free( authzDN );
 308                 return SASL_NOAUTHZ;
 309         }
 310
 311 #ifdef NEW_LOGGING
 312         LDAP_LOG(( "sasl", LDAP_LEVEL_ENTRY,
 313                    "slap_sasl_authorize: conn %d authorization allowed\n",
 314                    (long)(conn ? conn->c_connid : -1 ) ));
 315 #else
 316         Debug( LDAP_DEBUG_TRACE, "SASL Authorize [conn=%ld]: "
 317                 " authorization allowed\n",
 318                 (long) (conn ? conn->c_connid : -1), 0, 0 );
 319 #endif
 320
 321
 322         ch_free( authcDN );
 323         *user = authzDN;
 324         *errstr = NULL;
 325         return SASL_OK;
 326 }
 327
 328
 329 static int
 330 slap_sasl_err2ldap( int saslerr )
 331 {
 332         int rc;
 333
 334         switch (saslerr) {
 335                 case SASL_CONTINUE:
 336                         rc = LDAP_SASL_BIND_IN_PROGRESS;
 337                         break;
 338                 case SASL_FAIL:
 339                         rc = LDAP_OTHER;
 340                         break;
 341                 case SASL_NOMEM:
 342                         rc = LDAP_OTHER;
 343                         break;
 344                 case SASL_NOMECH:
 345                         rc = LDAP_AUTH_METHOD_NOT_SUPPORTED;
 346                         break;
 347                 case SASL_BADAUTH:
 348                         rc = LDAP_INVALID_CREDENTIALS;
 349                         break;
 350                 case SASL_NOAUTHZ:
 351                         rc = LDAP_INSUFFICIENT_ACCESS;
 352                         break;
 353                 case SASL_TOOWEAK:
 354                 case SASL_ENCRYPT:
 355                         rc = LDAP_INAPPROPRIATE_AUTH;
 356                         break;
 357                 default:
 358                         rc = LDAP_OTHER;
 359                         break;
 360         }
 361
 362         return rc;
 363 }
 364 #endif
 365
 366
 367 int slap_sasl_init( void )
 368 {
 369 #ifdef HAVE_CYRUS_SASL
 370         int rc;
 371         static sasl_callback_t server_callbacks[] = {
 372                 { SASL_CB_LOG, &slap_sasl_log, NULL },
 373                 { SASL_CB_LIST_END, NULL, NULL }
 374         };
 375
 376         sasl_set_alloc(
 377                 ch_malloc,
 378                 ch_calloc,
 379                 ch_realloc,
 380                 ch_free );
 381
 382         sasl_set_mutex(
 383                 ldap_pvt_sasl_mutex_new,
 384                 ldap_pvt_sasl_mutex_lock,
 385                 ldap_pvt_sasl_mutex_unlock,
 386                 ldap_pvt_sasl_mutex_dispose );
 387
 388         /* should provide callbacks for logging */
 389         /* server name should be configurable */
 390         rc = sasl_server_init( server_callbacks, "slapd" );
 391
 392         if( rc != SASL_OK ) {
 393 #ifdef NEW_LOGGING
 394                 LDAP_LOG(( "sasl", LDAP_LEVEL_INFO,
 395                            "slap_sasl_init: init failed.\n" ));
 396 #else
 397                 Debug( LDAP_DEBUG_ANY, "sasl_server_init failed\n",
 398                         0, 0, 0 );
 399 #endif
 400
 401                 return -1;
 402         }
 403
 404 #ifdef NEW_LOGGING
 405         LDAP_LOG(( "sasl", LDAP_LEVEL_INFO,
 406                    "slap_sasl_init: initialized!\n"));
 407 #else
 408         Debug( LDAP_DEBUG_TRACE, "slap_sasl_init: initialized!\n",
 409                 0, 0, 0 );
 410 #endif
 411
 412
 413         /* default security properties */
 414         memset( &sasl_secprops, '\0', sizeof(sasl_secprops) );
 415     sasl_secprops.max_ssf = INT_MAX;
 416     sasl_secprops.maxbufsize = 65536;
 417     sasl_secprops.security_flags = SASL_SEC_NOPLAINTEXT|SASL_SEC_NOANONYMOUS;
 418 #endif
 419
 420         return 0;
 421 }
 422
 423 int slap_sasl_destroy( void )
 424 {
 425 #ifdef HAVE_CYRUS_SASL
 426         sasl_done();
 427 #endif
 428         return 0;
 429 }
 430
 431 int slap_sasl_open( Connection *conn )
 432 {
 433         int sc = LDAP_SUCCESS;
 434
 435 #ifdef HAVE_CYRUS_SASL
 436         sasl_conn_t *ctx = NULL;
 437         sasl_callback_t *session_callbacks;
 438
 439         assert( conn->c_sasl_context == NULL );
 440         assert( conn->c_sasl_extra == NULL );
 441
 442         conn->c_sasl_layers = 0;
 443
 444         session_callbacks =
 445                 ch_calloc( 3, sizeof(sasl_callback_t));
 446         conn->c_sasl_extra = session_callbacks;
 447
 448         session_callbacks[0].id = SASL_CB_LOG;
 449         session_callbacks[0].proc = &slap_sasl_log;
 450         session_callbacks[0].context = conn;
 451
 452         session_callbacks[1].id = SASL_CB_PROXY_POLICY;
 453         session_callbacks[1].proc = &slap_sasl_authorize;
 454         session_callbacks[1].context = conn;
 455
 456         session_callbacks[2].id = SASL_CB_LIST_END;
 457         session_callbacks[2].proc = NULL;
 458         session_callbacks[2].context = NULL;
 459
 460         if( global_host == NULL ) {
 461                 global_host = ldap_pvt_get_fqdn( NULL );
 462         }
 463
 464         /* create new SASL context */
 465         sc = sasl_server_new( "ldap", global_host, global_realm,
 466                 session_callbacks, SASL_SECURITY_LAYER, &ctx );
 467
 468         if( sc != SASL_OK ) {
 469 #ifdef NEW_LOGGING
 470                 LDAP_LOG(( "sasl", LDAP_LEVEL_ERR,
 471                            "slap_sasl_open: sasl_server_new failed: %d\n", sc ));
 472 #else
 473                 Debug( LDAP_DEBUG_ANY, "sasl_server_new failed: %d\n",
 474                         sc, 0, 0 );
 475 #endif
 476
 477                 return -1;
 478         }
 479
 480         conn->c_sasl_context = ctx;
 481
 482         if( sc == SASL_OK ) {
 483                 sc = sasl_setprop( ctx,
 484                         SASL_SEC_PROPS, &sasl_secprops );
 485
 486                 if( sc != SASL_OK ) {
 487 #ifdef NEW_LOGGING
 488                         LDAP_LOG(( "sasl", LDAP_LEVEL_ERR,
 489                                    "slap_sasl_open: sasl_setprop failed: %d \n", sc ));
 490 #else
 491                         Debug( LDAP_DEBUG_ANY, "sasl_setprop failed: %d\n",
 492                                 sc, 0, 0 );
 493 #endif
 494
 495                         slap_sasl_close( conn );
 496                         return -1;
 497                 }
 498         }
 499
 500         sc = slap_sasl_err2ldap( sc );
 501 #endif
 502         return sc;
 503 }
 504
 505 int slap_sasl_external(
 506         Connection *conn,
 507         slap_ssf_t ssf,
 508         const char *auth_id )
 509 {
 510 #ifdef HAVE_CYRUS_SASL
 511         int sc;
 512         sasl_conn_t *ctx = conn->c_sasl_context;
 513         sasl_external_properties_t extprops;
 514
 515         if ( ctx == NULL ) {
 516                 return LDAP_UNAVAILABLE;
 517         }
 518
 519         memset( &extprops, '\0', sizeof(extprops) );
 520         extprops.ssf = ssf;
 521         extprops.auth_id = (char *) auth_id;
 522
 523         sc = sasl_setprop( ctx, SASL_SSF_EXTERNAL,
 524                 (void *) &extprops );
 525
 526         if ( sc != SASL_OK ) {
 527                 return LDAP_OTHER;
 528         }
 529 #endif
 530
 531         return LDAP_SUCCESS;
 532 }
 533
 534 int slap_sasl_reset( Connection *conn )
 535 {
 536 #ifdef HAVE_CYRUS_SASL
 537         sasl_conn_t *ctx = conn->c_sasl_context;
 538
 539         if( ctx != NULL ) {
 540         }
 541 #endif
 542         /* must return "anonymous" */
 543         return LDAP_SUCCESS;
 544 }
 545
 546 char ** slap_sasl_mechs( Connection *conn )
 547 {
 548         char **mechs = NULL;
 549
 550 #ifdef HAVE_CYRUS_SASL
 551         sasl_conn_t *ctx = conn->c_sasl_context;
 552
 553         if( ctx != NULL ) {
 554                 int sc;
 555                 char *mechstr;
 556
 557                 sc = sasl_listmech( ctx,
 558                         NULL, NULL, ",", NULL,
 559                         &mechstr, NULL, NULL );
 560
 561                 if( sc != SASL_OK ) {
 562 #ifdef NEW_LOGGING
 563                         LDAP_LOG(( "sasl", LDAP_LEVEL_ERR,
 564                                    "slap_sasl_mechs: sasl_listmech failed: %d\n", sc ));
 565 #else
 566                         Debug( LDAP_DEBUG_ANY, "slap_sasl_listmech failed: %d\n",
 567                                 sc, 0, 0 );
 568 #endif
 569
 570                         return NULL;
 571                 }
 572
 573                 mechs = str2charray( mechstr, "," );
 574
 575                 ch_free( mechstr );
 576         }
 577 #endif
 578
 579         return mechs;
 580 }
 581
 582 int slap_sasl_close( Connection *conn )
 583 {
 584 #ifdef HAVE_CYRUS_SASL
 585         sasl_conn_t *ctx = conn->c_sasl_context;
 586
 587         if( ctx != NULL ) {
 588                 sasl_dispose( &ctx );
 589         }
 590
 591         conn->c_sasl_context = NULL;
 592
 593         free( conn->c_sasl_extra );
 594         conn->c_sasl_extra = NULL;
 595 #endif
 596
 597         return LDAP_SUCCESS;
 598 }
 599
 600 int slap_sasl_bind(
 601     Connection          *conn,
 602     Operation           *op,
 603     const char          *dn,
 604     const char          *ndn,
 605     struct berval       *cred,
 606         char                            **edn,
 607         slap_ssf_t                      *ssfp )
 608 {
 609         int rc = 1;
 610
 611 #ifdef HAVE_CYRUS_SASL
 612         sasl_conn_t *ctx = conn->c_sasl_context;
 613         struct berval response;
 614         unsigned reslen;
 615         const char *errstr;
 616         int sc;
 617
 618 #ifdef NEW_LOGGING
 619         LDAP_LOG(( "sasl", LDAP_LEVEL_ENTRY,
 620                    "sasl_bind: conn %ld dn=\"%s\" mech=%s datalen=%d\n",
 621                    conn->c_connid, dn,
 622                    conn->c_sasl_bind_in_progress ? "<continuing>" : conn->c_sasl_bind_mech,
 623                    cred ? cred->bv_len : 0 ));
 624 #else
 625         Debug(LDAP_DEBUG_ARGS,
 626           "==> sasl_bind: dn=\"%s\" mech=%s datalen=%d\n", dn,
 627           conn->c_sasl_bind_in_progress ? "<continuing>":conn->c_sasl_bind_mech,
 628           cred ? cred->bv_len : 0 );
 629 #endif
 630
 631
 632         if( ctx == NULL ) {
 633                 send_ldap_result( conn, op, LDAP_UNAVAILABLE,
 634                         NULL, "SASL unavailable on this session", NULL, NULL );
 635                 return rc;
 636         }
 637
 638         if ( !conn->c_sasl_bind_in_progress ) {
 639                 sc = sasl_server_start( ctx,
 640                         conn->c_sasl_bind_mech,
 641                         cred->bv_val, cred->bv_len,
 642                         (char **)&response.bv_val, &reslen, &errstr );
 643
 644         } else {
 645                 sc = sasl_server_step( ctx,
 646                         cred->bv_val, cred->bv_len,
 647                         (char **)&response.bv_val, &reslen, &errstr );
 648         }
 649
 650         response.bv_len = reslen;
 651
 652         if ( sc == SASL_OK ) {
 653                 char *username = NULL;
 654
 655                 sc = sasl_getprop( ctx,
 656                         SASL_USERNAME, (void **)&username );
 657
 658                 if ( sc != SASL_OK ) {
 659 #ifdef NEW_LOGGING
 660                         LDAP_LOG(( "sasl", LDAP_LEVEL_ERR,
 661                                    "slap_sasl_bind: getprop(USERNAME) failed: %d\n", sc ));
 662 #else
 663                         Debug(LDAP_DEBUG_TRACE,
 664                                 "slap_sasl_bind: getprop(USERNAME) failed!\n",
 665                                 0, 0, 0);
 666 #endif
 667
 668
 669                         send_ldap_result( conn, op, rc = slap_sasl_err2ldap( sc ),
 670                                 NULL, "no SASL username", NULL, NULL );
 671
 672                 } else {
 673                         rc = slap_sasl_getdn( conn, username, edn, FLAG_GETDN_FINAL );
 674
 675                         if( rc == LDAP_SUCCESS ) {
 676                                 int i;
 677                                 sasl_ssf_t *ssf = NULL;
 678                                 (void) sasl_getprop( ctx, SASL_SSF, (void *)&ssf );
 679                                 *ssfp = ssf ? *ssf : 0;
 680
 681                                 if( *ssfp ) {
 682                                         ldap_pvt_thread_mutex_lock( &conn->c_mutex );
 683                                         conn->c_sasl_layers++;
 684                                         ldap_pvt_thread_mutex_unlock( &conn->c_mutex );
 685                                 }
 686
 687                                 /* Store the authorization DN as a subjectDN */
 688                                 if ( *edn ) {
 689                                         i = 2;
 690                                         do {
 691                                                 i++;
 692                                                 (*edn)[i-3] = (*edn)[i];
 693                                         } while( (*edn)[i] );
 694                                 }
 695
 696                                 send_ldap_sasl( conn, op, rc,
 697                                         NULL, NULL, NULL, NULL,
 698                                         response.bv_len ? &response : NULL );
 699
 700                         } else {
 701                                 send_ldap_result( conn, op, rc,
 702                                         NULL, errstr, NULL, NULL );
 703                         }
 704                 }
 705
 706         } else if ( sc == SASL_CONTINUE ) {
 707                 send_ldap_sasl( conn, op, rc = LDAP_SASL_BIND_IN_PROGRESS,
 708                         NULL, NULL, NULL, NULL, &response );
 709
 710         } else {
 711                 send_ldap_result( conn, op, rc = slap_sasl_err2ldap( sc ),
 712                         NULL, errstr, NULL, NULL );
 713         }
 714
 715 #ifdef NEW_LOGGING
 716         LDAP_LOG(( "sasl", LDAP_LEVEL_ENTRY,
 717                    "slap_sasl_bind: rc=%d\n", rc ));
 718 #else
 719         Debug(LDAP_DEBUG_TRACE, "<== slap_sasl_bind: rc=%d\n", rc, 0, 0);
 720 #endif
 721
 722
 723 #else
 724         send_ldap_result( conn, op, rc = LDAP_UNAVAILABLE,
 725                 NULL, "SASL not supported", NULL, NULL );
 726 #endif
 727
 728         return rc;
 729 }
 730
 731 char* slap_sasl_secprops( const char *in )
 732 {
 733 #ifdef HAVE_CYRUS_SASL
 734         int rc = ldap_pvt_sasl_secprops( in, &sasl_secprops );
 735
 736         return rc == LDAP_SUCCESS ? NULL : "Invalid security properties";
 737 #else
 738         return "SASL not supported";
 739 #endif
 740 }