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

   1 /* bind.c - decode an ldap bind operation and pass it to a backend db */
   2 /* $OpenLDAP$ */
   3 /*
   4  * Copyright 1998-2003 The OpenLDAP Foundation, All Rights Reserved.
   5  * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
   6  */
   7
   8 /*
   9  * Copyright (c) 1995 Regents of the University of Michigan.
  10  * All rights reserved.
  11  *
  12  * Redistribution and use in source and binary forms are permitted
  13  * provided that this notice is preserved and that due credit is given
  14  * to the University of Michigan at Ann Arbor. The name of the University
  15  * may not be used to endorse or promote products derived from this
  16  * software without specific prior written permission. This software
  17  * is provided ``as is'' without express or implied warranty.
  18  */
  19
  20 #include "portable.h"
  21
  22 #include <stdio.h>
  23
  24 #include <ac/string.h>
  25 #include <ac/socket.h>
  26
  27 #include "ldap_pvt.h"
  28 #include "slap.h"
  29 #include "slapi.h"
  30
  31
  32 int
  33 do_bind(
  34     Connection  *conn,
  35     Operation   *op
  36 )
  37 {
  38         BerElement *ber = op->o_ber;
  39         ber_int_t version;
  40         ber_tag_t method;
  41         struct berval mech = { 0, NULL };
  42         struct berval dn = { 0, NULL };
  43         struct berval pdn = { 0, NULL };
  44         struct berval ndn = { 0, NULL };
  45         struct berval edn = { 0, NULL };
  46         ber_tag_t tag;
  47         int     rc = LDAP_SUCCESS;
  48         const char *text;
  49         struct berval cred = { 0, NULL };
  50         Backend *be = NULL;
  51
  52         Slapi_PBlock *pb = op->o_pb;
  53
  54 #ifdef NEW_LOGGING
  55         LDAP_LOG( OPERATION, ENTRY, "do_bind: conn %d\n", conn->c_connid, 0, 0 );
  56 #else
  57         Debug( LDAP_DEBUG_TRACE, "do_bind\n", 0, 0, 0 );
  58 #endif
  59
  60         /*
  61          * Force to connection to "anonymous" until bind succeeds.
  62          */
  63         ldap_pvt_thread_mutex_lock( &conn->c_mutex );
  64         if ( conn->c_sasl_bind_in_progress ) be = conn->c_authz_backend;
  65
  66         /* log authorization identity demotion */
  67         if ( conn->c_dn.bv_len ) {
  68                 Statslog( LDAP_DEBUG_STATS,
  69                         "conn=%lu op=%lu BIND anonymous mech=implicit ssf=0",
  70                         op->o_connid, op->o_opid, 0, 0, 0 );
  71         }
  72
  73         connection2anonymous( conn );
  74         if ( conn->c_sasl_bind_in_progress ) conn->c_authz_backend = be;
  75         ldap_pvt_thread_mutex_unlock( &conn->c_mutex );
  76
  77         if ( op->o_dn.bv_val != NULL ) {
  78                 free( op->o_dn.bv_val );
  79                 op->o_dn.bv_val = ch_strdup( "" );
  80                 op->o_dn.bv_len = 0;
  81         }
  82
  83         if ( op->o_ndn.bv_val != NULL ) {
  84                 free( op->o_ndn.bv_val );
  85                 op->o_ndn.bv_val = ch_strdup( "" );
  86                 op->o_ndn.bv_len = 0;
  87         }
  88
  89         /*
  90          * Parse the bind request.  It looks like this:
  91          *
  92          *      BindRequest ::= SEQUENCE {
  93          *              version         INTEGER,                 -- version
  94          *              name            DistinguishedName,       -- dn
  95          *              authentication  CHOICE {
  96          *                      simple          [0] OCTET STRING -- passwd
  97          *                      krbv42ldap      [1] OCTET STRING
  98          *                      krbv42dsa       [2] OCTET STRING
  99          *                      SASL            [3] SaslCredentials
 100          *              }
 101          *      }
 102          *
 103          *      SaslCredentials ::= SEQUENCE {
 104          *              mechanism           LDAPString,
 105          *              credentials         OCTET STRING OPTIONAL
 106          *      }
 107          */
 108
 109         tag = ber_scanf( ber, "{imt" /*}*/, &version, &dn, &method );
 110
 111         if ( tag == LBER_ERROR ) {
 112 #ifdef NEW_LOGGING
 113                 LDAP_LOG( OPERATION, ERR,
 114                         "do_bind: conn %d  ber_scanf failed\n", conn->c_connid, 0, 0 );
 115 #else
 116                 Debug( LDAP_DEBUG_ANY, "bind: ber_scanf failed\n", 0, 0, 0 );
 117 #endif
 118                 send_ldap_disconnect( conn, op,
 119                         LDAP_PROTOCOL_ERROR, "decoding error" );
 120                 rc = -1;
 121                 goto cleanup;
 122         }
 123
 124         op->o_protocol = version;
 125
 126         if( method != LDAP_AUTH_SASL ) {
 127                 tag = ber_scanf( ber, /*{*/ "m}", &cred );
 128
 129         } else {
 130                 tag = ber_scanf( ber, "{o" /*}*/, &mech );
 131
 132                 if ( tag != LBER_ERROR ) {
 133                         ber_len_t len;
 134                         tag = ber_peek_tag( ber, &len );
 135
 136                         if ( tag == LDAP_TAG_LDAPCRED ) {
 137                                 tag = ber_scanf( ber, "m", &cred );
 138                         } else {
 139                                 tag = LDAP_TAG_LDAPCRED;
 140                                 cred.bv_val = NULL;
 141                                 cred.bv_len = 0;
 142                         }
 143
 144                         if ( tag != LBER_ERROR ) {
 145                                 tag = ber_scanf( ber, /*{{*/ "}}" );
 146                         }
 147                 }
 148         }
 149
 150         if ( tag == LBER_ERROR ) {
 151                 send_ldap_disconnect( conn, op,
 152                         LDAP_PROTOCOL_ERROR,
 153                 "decoding error" );
 154                 rc = SLAPD_DISCONNECT;
 155                 goto cleanup;
 156         }
 157
 158         if( (rc = get_ctrls( conn, op, 1 )) != LDAP_SUCCESS ) {
 159 #ifdef NEW_LOGGING
 160                 LDAP_LOG( OPERATION, INFO,
 161                         "do_bind: conn %d  get_ctrls failed\n", conn->c_connid, 0, 0 );
 162 #else
 163                 Debug( LDAP_DEBUG_ANY, "do_bind: get_ctrls failed\n", 0, 0, 0 );
 164 #endif
 165                 goto cleanup;
 166         }
 167
 168         rc = dnPrettyNormal( NULL, &dn, &pdn, &ndn );
 169         if ( rc != LDAP_SUCCESS ) {
 170 #ifdef NEW_LOGGING
 171                 LDAP_LOG( OPERATION, INFO,
 172                         "do_bind: conn %d  invalid dn (%s)\n",
 173                         conn->c_connid, dn.bv_val, 0 );
 174 #else
 175                 Debug( LDAP_DEBUG_ANY, "bind: invalid dn (%s)\n",
 176                         dn.bv_val, 0, 0 );
 177 #endif
 178                 send_ldap_result( conn, op, rc = LDAP_INVALID_DN_SYNTAX, NULL,
 179                     "invalid DN", NULL, NULL );
 180                 goto cleanup;
 181         }
 182
 183         if( method == LDAP_AUTH_SASL ) {
 184 #ifdef NEW_LOGGING
 185                 LDAP_LOG( OPERATION,     DETAIL1,
 186                         "do_sasl_bind: conn %d  dn (%s) mech %s\n",
 187                         conn->c_connid, pdn.bv_val, mech.bv_val );
 188 #else
 189                 Debug( LDAP_DEBUG_TRACE, "do_sasl_bind: dn (%s) mech %s\n",
 190                         pdn.bv_val, mech.bv_val, NULL );
 191 #endif
 192
 193         } else {
 194 #ifdef NEW_LOGGING
 195                 LDAP_LOG( OPERATION, DETAIL1,
 196                         "do_bind: version=%ld dn=\"%s\" method=%ld\n",
 197                         (unsigned long) version, pdn.bv_val, (unsigned long)method );
 198 #else
 199                 Debug( LDAP_DEBUG_TRACE,
 200                         "do_bind: version=%ld dn=\"%s\" method=%ld\n",
 201                         (unsigned long) version,
 202                         pdn.bv_val, (unsigned long) method );
 203 #endif
 204         }
 205
 206         Statslog( LDAP_DEBUG_STATS, "conn=%lu op=%lu BIND dn=\"%s\" method=%ld\n",
 207             op->o_connid, op->o_opid, pdn.bv_val, (unsigned long) method, 0 );
 208
 209         if ( version < LDAP_VERSION_MIN || version > LDAP_VERSION_MAX ) {
 210 #ifdef NEW_LOGGING
 211                 LDAP_LOG( OPERATION, INFO,
 212                         "do_bind: conn %d  unknown version = %ld\n",
 213                         conn->c_connid, (unsigned long)version, 0 );
 214 #else
 215                 Debug( LDAP_DEBUG_ANY, "do_bind: unknown version=%ld\n",
 216                         (unsigned long) version, 0, 0 );
 217 #endif
 218                 send_ldap_result( conn, op, rc = LDAP_PROTOCOL_ERROR,
 219                         NULL, "requested protocol version not supported", NULL, NULL );
 220                 goto cleanup;
 221
 222         } else if (!( global_allows & SLAP_ALLOW_BIND_V2 ) &&
 223                 version < LDAP_VERSION3 )
 224         {
 225                 send_ldap_result( conn, op, rc = LDAP_PROTOCOL_ERROR,
 226                         NULL, "requested protocol version not allowed", NULL, NULL );
 227                 goto cleanup;
 228         }
 229
 230         /* we set connection version regardless of whether bind succeeds
 231          * or not.
 232          */
 233         ldap_pvt_thread_mutex_lock( &conn->c_mutex );
 234         conn->c_protocol = version;
 235         ldap_pvt_thread_mutex_unlock( &conn->c_mutex );
 236
 237         /* check for inappropriate controls */
 238         if( get_manageDSAit( op ) == SLAP_CRITICAL_CONTROL ) {
 239                 send_ldap_result( conn, op,
 240                         rc = LDAP_UNAVAILABLE_CRITICAL_EXTENSION,
 241                         NULL, "manageDSAit control inappropriate",
 242                         NULL, NULL );
 243                 goto cleanup;
 244         }
 245
 246         /* Set the bindop for the benefit of in-directory SASL lookups */
 247         conn->c_sasl_bindop = op;
 248
 249         if ( method == LDAP_AUTH_SASL ) {
 250                 slap_ssf_t ssf = 0;
 251
 252                 if ( version < LDAP_VERSION3 ) {
 253 #ifdef NEW_LOGGING
 254                         LDAP_LOG( OPERATION, INFO,
 255                                 "do_bind: conn %d  sasl with LDAPv%ld\n",
 256                                 conn->c_connid, (unsigned long)version , 0 );
 257 #else
 258                         Debug( LDAP_DEBUG_ANY, "do_bind: sasl with LDAPv%ld\n",
 259                                 (unsigned long) version, 0, 0 );
 260 #endif
 261                         send_ldap_disconnect( conn, op,
 262                                 LDAP_PROTOCOL_ERROR, "SASL bind requires LDAPv3" );
 263                         rc = SLAPD_DISCONNECT;
 264                         goto cleanup;
 265                 }
 266
 267                 if( mech.bv_len == 0 ) {
 268 #ifdef NEW_LOGGING
 269                         LDAP_LOG( OPERATION, INFO,
 270                                    "do_bind: conn %d  no SASL mechanism provided\n",
 271                                    conn->c_connid, 0, 0 );
 272 #else
 273                         Debug( LDAP_DEBUG_ANY,
 274                                 "do_bind: no sasl mechanism provided\n",
 275                                 0, 0, 0 );
 276 #endif
 277                         send_ldap_result( conn, op, rc = LDAP_AUTH_METHOD_NOT_SUPPORTED,
 278                                 NULL, "no SASL mechanism provided", NULL, NULL );
 279                         goto cleanup;
 280                 }
 281
 282                 /* check restrictions */
 283                 rc = backend_check_restrictions( NULL, conn, op, &mech, &text );
 284                 if( rc != LDAP_SUCCESS ) {
 285                         send_ldap_result( conn, op, rc,
 286                                 NULL, text, NULL, NULL );
 287                         goto cleanup;
 288                 }
 289
 290                 ldap_pvt_thread_mutex_lock( &conn->c_mutex );
 291                 if ( conn->c_sasl_bind_in_progress ) {
 292                         if( !bvmatch( &conn->c_sasl_bind_mech, &mech ) ) {
 293                                 /* mechanism changed between bind steps */
 294                                 slap_sasl_reset(conn);
 295                         }
 296                 } else {
 297                         conn->c_sasl_bind_mech = mech;
 298                         mech.bv_val = NULL;
 299                         mech.bv_len = 0;
 300                 }
 301                 ldap_pvt_thread_mutex_unlock( &conn->c_mutex );
 302
 303                 rc = slap_sasl_bind( conn, op,
 304                         &pdn, &ndn,
 305                         &cred, &edn, &ssf );
 306
 307                 ldap_pvt_thread_mutex_lock( &conn->c_mutex );
 308                 if( rc == LDAP_SUCCESS ) {
 309                         conn->c_dn = edn;
 310                         if( edn.bv_len != 0 ) {
 311                                 /* edn is always normalized already */
 312                                 ber_dupbv( &conn->c_ndn, &conn->c_dn );
 313                         }
 314                         conn->c_authmech = conn->c_sasl_bind_mech;
 315                         conn->c_sasl_bind_mech.bv_val = NULL;
 316                         conn->c_sasl_bind_mech.bv_len = 0;
 317                         conn->c_sasl_bind_in_progress = 0;
 318
 319                         conn->c_sasl_ssf = ssf;
 320                         if( ssf > conn->c_ssf ) {
 321                                 conn->c_ssf = ssf;
 322                         }
 323
 324                         if( conn->c_dn.bv_len != 0 ) {
 325                                 ber_len_t max = sockbuf_max_incoming_auth;
 326                                 ber_sockbuf_ctrl( conn->c_sb,
 327                                         LBER_SB_OPT_SET_MAX_INCOMING, &max );
 328                         }
 329
 330                         /* log authorization identity */
 331                         Statslog( LDAP_DEBUG_STATS,
 332                                 "conn=%lu op=%lu BIND dn=\"%s\" mech=%s ssf=%d\n",
 333                                 op->o_connid, op->o_opid,
 334                                 conn->c_dn.bv_val ? conn->c_dn.bv_val : "<empty>",
 335                                 conn->c_authmech.bv_val, ssf );
 336
 337 #ifdef NEW_LOGGING
 338                         LDAP_LOG( OPERATION, DETAIL1,
 339                                 "do_bind: SASL/%s bind: dn=\"%s\" ssf=%d\n",
 340                                 conn->c_authmech.bv_val,
 341                                 conn->c_dn.bv_val ? conn->c_dn.bv_val : "<empty>",
 342                                 ssf );
 343 #else
 344                         Debug( LDAP_DEBUG_TRACE,
 345                                 "do_bind: SASL/%s bind: dn=\"%s\" ssf=%d\n",
 346                                 conn->c_authmech.bv_val,
 347                                 conn->c_dn.bv_val ? conn->c_dn.bv_val : "<empty>",
 348                                 ssf );
 349 #endif
 350
 351                 } else if ( rc == LDAP_SASL_BIND_IN_PROGRESS ) {
 352                         conn->c_sasl_bind_in_progress = 1;
 353
 354                 } else {
 355                         if ( conn->c_sasl_bind_mech.bv_val ) {
 356                                 free( conn->c_sasl_bind_mech.bv_val );
 357                                 conn->c_sasl_bind_mech.bv_val = NULL;
 358                                 conn->c_sasl_bind_mech.bv_len = 0;
 359                         }
 360                         conn->c_sasl_bind_in_progress = 0;
 361                 }
 362                 ldap_pvt_thread_mutex_unlock( &conn->c_mutex );
 363
 364                 goto cleanup;
 365
 366         } else {
 367                 /* Not SASL, cancel any in-progress bind */
 368                 ldap_pvt_thread_mutex_lock( &conn->c_mutex );
 369
 370                 if ( conn->c_sasl_bind_mech.bv_val != NULL ) {
 371                         free(conn->c_sasl_bind_mech.bv_val);
 372                         conn->c_sasl_bind_mech.bv_val = NULL;
 373                         conn->c_sasl_bind_mech.bv_len = 0;
 374                 }
 375                 conn->c_sasl_bind_in_progress = 0;
 376
 377                 slap_sasl_reset( conn );
 378                 ldap_pvt_thread_mutex_unlock( &conn->c_mutex );
 379         }
 380
 381         if ( method == LDAP_AUTH_SIMPLE ) {
 382                 /* accept "anonymous" binds */
 383                 if ( cred.bv_len == 0 || ndn.bv_len == 0 ) {
 384                         rc = LDAP_SUCCESS;
 385                         text = NULL;
 386
 387                         if( cred.bv_len &&
 388                                 !( global_allows & SLAP_ALLOW_BIND_ANON_CRED ))
 389                         {
 390                                 /* cred is not empty, disallow */
 391                                 rc = LDAP_INVALID_CREDENTIALS;
 392
 393                         } else if ( ndn.bv_len &&
 394                                 !( global_allows & SLAP_ALLOW_BIND_ANON_DN ))
 395                         {
 396                                 /* DN is not empty, disallow */
 397                                 rc = LDAP_UNWILLING_TO_PERFORM;
 398                                 text = "unwilling to allow anonymous bind with non-empty DN";
 399
 400                         } else if ( global_disallows & SLAP_DISALLOW_BIND_ANON ) {
 401                                 /* disallow */
 402                                 rc = LDAP_INAPPROPRIATE_AUTH;
 403                                 text = "anonymous bind disallowed";
 404
 405                         } else {
 406                                 rc = backend_check_restrictions( NULL, conn, op,
 407                                         &mech, &text );
 408                         }
 409
 410                         /*
 411                          * we already forced connection to "anonymous",
 412                          * just need to send success
 413                          */
 414                         send_ldap_result( conn, op, rc,
 415                                 NULL, text, NULL, NULL );
 416 #ifdef NEW_LOGGING
 417                         LDAP_LOG( OPERATION, DETAIL1,
 418                                    "do_bind: conn %d  v%d anonymous bind\n",
 419                                    conn->c_connid, version , 0 );
 420 #else
 421                         Debug( LDAP_DEBUG_TRACE, "do_bind: v%d anonymous bind\n",
 422                                 version, 0, 0 );
 423 #endif
 424                         goto cleanup;
 425
 426                 } else if ( global_disallows & SLAP_DISALLOW_BIND_SIMPLE ) {
 427                         /* disallow simple authentication */
 428                         rc = LDAP_UNWILLING_TO_PERFORM;
 429                         text = "unwilling to perform simple authentication";
 430
 431                         send_ldap_result( conn, op, rc,
 432                                 NULL, text, NULL, NULL );
 433 #ifdef NEW_LOGGING
 434                         LDAP_LOG( OPERATION, INFO,
 435                                    "do_bind: conn %d  v%d simple bind(%s) disallowed\n",
 436                                    conn->c_connid, version, ndn.bv_val );
 437 #else
 438                         Debug( LDAP_DEBUG_TRACE,
 439                                 "do_bind: v%d simple bind(%s) disallowed\n",
 440                                 version, ndn.bv_val, 0 );
 441 #endif
 442                         goto cleanup;
 443
 444                 } else if (( global_disallows & SLAP_DISALLOW_BIND_SIMPLE_UNPROTECTED )
 445                         && ( op->o_ssf <= 1 ))
 446                 {
 447                         rc = LDAP_CONFIDENTIALITY_REQUIRED;
 448                         text = "unwilling to perform simple authentication "
 449                                 "without confidentilty protection";
 450
 451                         send_ldap_result( conn, op, rc,
 452                                 NULL, text, NULL, NULL );
 453
 454 #ifdef NEW_LOGGING
 455                         LDAP_LOG( OPERATION, INFO, "do_bind: conn %d  "
 456                                 "v%d unprotected simple bind(%s) disallowed\n",
 457                                 conn->c_connid, version, ndn.bv_val );
 458 #else
 459                         Debug( LDAP_DEBUG_TRACE,
 460                                 "do_bind: v%d unprotected simple bind(%s) disallowed\n",
 461                                 version, ndn.bv_val, 0 );
 462 #endif
 463                         goto cleanup;
 464                 }
 465
 466 #ifdef LDAP_API_FEATURE_X_OPENLDAP_V2_KBIND
 467         } else if ( method == LDAP_AUTH_KRBV41 || method == LDAP_AUTH_KRBV42 ) {
 468                 if ( global_disallows & SLAP_DISALLOW_BIND_KRBV4 ) {
 469                         /* disallow simple authentication */
 470                         rc = LDAP_UNWILLING_TO_PERFORM;
 471                         text = "unwilling to perform Kerberos V4 bind";
 472
 473                         send_ldap_result( conn, op, rc,
 474                                 NULL, text, NULL, NULL );
 475 #ifdef NEW_LOGGING
 476                         LDAP_LOG( OPERATION, DETAIL1,
 477                                    "do_bind: conn %d  v%d Kerberos V4 bind\n",
 478                                    conn->c_connid, version , 0 );
 479 #else
 480                         Debug( LDAP_DEBUG_TRACE, "do_bind: v%d Kerberos V4 bind\n",
 481                                 version, 0, 0 );
 482 #endif
 483                         goto cleanup;
 484                 }
 485 #endif
 486
 487         } else {
 488                 rc = LDAP_AUTH_METHOD_NOT_SUPPORTED;
 489                 text = "unknown authentication method";
 490
 491                 send_ldap_result( conn, op, rc,
 492                         NULL, text, NULL, NULL );
 493 #ifdef NEW_LOGGING
 494                 LDAP_LOG( OPERATION, INFO,
 495                            "do_bind: conn %ld  v%d unknown authentication method (%ld)\n",
 496                            conn->c_connid, version, method );
 497 #else
 498                 Debug( LDAP_DEBUG_TRACE,
 499                         "do_bind: v%d unknown authentication method (%ld)\n",
 500                         version, method, 0 );
 501 #endif
 502                 goto cleanup;
 503         }
 504
 505         /*
 506          * We could be serving multiple database backends.  Select the
 507          * appropriate one, or send a referral to our "referral server"
 508          * if we don't hold it.
 509          */
 510
 511         if ( (be = select_backend( &ndn, 0, 0 )) == NULL ) {
 512                 if ( default_referral ) {
 513                         BerVarray ref = referral_rewrite( default_referral,
 514                                 NULL, &pdn, LDAP_SCOPE_DEFAULT );
 515
 516                         send_ldap_result( conn, op, rc = LDAP_REFERRAL,
 517                                 NULL, NULL, ref ? ref : default_referral, NULL );
 518
 519                         ber_bvarray_free( ref );
 520
 521                 } else {
 522                         /* noSuchObject is not allowed to be returned by bind */
 523                         send_ldap_result( conn, op, rc = LDAP_INVALID_CREDENTIALS,
 524                                 NULL, NULL, NULL, NULL );
 525                 }
 526
 527                 goto cleanup;
 528         }
 529
 530         /* check restrictions */
 531         rc = backend_check_restrictions( be, conn, op, NULL, &text );
 532         if( rc != LDAP_SUCCESS ) {
 533                 send_ldap_result( conn, op, rc,
 534                         NULL, text, NULL, NULL );
 535                 goto cleanup;
 536         }
 537
 538 #if defined( LDAP_SLAPI )
 539         slapi_x_backend_set_pb( pb, be );
 540         slapi_x_connection_set_pb( pb, conn );
 541         slapi_x_operation_set_pb( pb, op );
 542         slapi_pblock_set( pb, SLAPI_BIND_TARGET, (void *)dn.bv_val );
 543         slapi_pblock_set( pb, SLAPI_BIND_METHOD, (void *)method );
 544         slapi_pblock_set( pb, SLAPI_BIND_CREDENTIALS, (void *)&cred );
 545         slapi_pblock_set( pb, SLAPI_MANAGEDSAIT, (void *)(0) );
 546
 547         rc = doPluginFNs( be, SLAPI_PLUGIN_PRE_BIND_FN, pb );
 548         if ( rc != SLAPI_BIND_SUCCESS ) {
 549                 /*
 550                  * Binding is a special case for SLAPI plugins. It is
 551                  * possible for a bind plugin to be successful *and*
 552                  * abort further processing; this means it has handled
 553                  * a bind request authoritatively. If we have reached
 554                  * here, a result has been sent to the client (XXX
 555                  * need to check with Sun whether SLAPI_BIND_ANONYMOUS
 556                  * means a result has been sent).
 557                  */
 558                 int ldapRc;
 559
 560                 if ( slapi_pblock_get( pb, SLAPI_RESULT_CODE, (void *)&ldapRc ) != 0 )
 561                         ldapRc = LDAP_OTHER;
 562
 563                 edn.bv_val = NULL;
 564                 edn.bv_len = 0;
 565                 if ( rc != SLAPI_BIND_FAIL && ldapRc == LDAP_SUCCESS ) {
 566                         /* Set the new connection DN. */
 567                         if ( rc != SLAPI_BIND_ANONYMOUS ) {
 568                                 slapi_pblock_get( pb, SLAPI_CONN_DN, (void *)&edn.bv_val );
 569                         }
 570                         rc = dnPrettyNormal( NULL, &edn, &pdn, &ndn );
 571                         ldap_pvt_thread_mutex_lock( &conn->c_mutex );
 572                         conn->c_dn = pdn;
 573                         conn->c_ndn = ndn;
 574                         pdn.bv_val = NULL;
 575                         pdn.bv_len = 0;
 576                         ndn.bv_val = NULL;
 577                         ndn.bv_len = 0;
 578                         if ( conn->c_dn.bv_len != 0 ) {
 579                                 ber_len_t max = sockbuf_max_incoming_auth;
 580                                 ber_sockbuf_ctrl( conn->c_sb, LBER_SB_OPT_SET_MAX_INCOMING, &max );
 581                         }
 582                         /* log authorization identity */
 583                         Statslog( LDAP_DEBUG_STATS,
 584                                 "conn=%lu op=%lu BIND dn=\"%s\" mech=simple (SLAPI) ssf=0\n",
 585                                 op->o_connid, op->o_opid,
 586                                 conn->c_dn.bv_val, 0, 0 );
 587                         ldap_pvt_thread_mutex_unlock( &conn->c_mutex );
 588                 }
 589 #ifdef NEW_LOGGING
 590                 LDAP_LOG( OPERATION, INFO, "do_bind: Bind preoperation plugin returned %d\n",
 591                                 rc, 0, 0);
 592 #else
 593                 Debug(LDAP_DEBUG_TRACE, "do_bind: Bind preoperation plugin returned %d.\n",
 594                                 rc, 0, 0);
 595 #endif
 596                 rc = ldapRc;
 597                 goto cleanup;
 598         }
 599 #endif /* defined( LDAP_SLAPI ) */
 600
 601         if ( be->be_bind ) {
 602                 int ret;
 603
 604                 /* deref suffix alias if appropriate */
 605                 suffix_alias( be, &ndn );
 606
 607                 ret = (*be->be_bind)( be, conn, op,
 608                         &pdn, &ndn, method, &cred, &edn );
 609
 610                 if ( ret == 0 ) {
 611                         ldap_pvt_thread_mutex_lock( &conn->c_mutex );
 612
 613                         if( conn->c_authz_backend == NULL ) {
 614                                 conn->c_authz_backend = be;
 615                         }
 616
 617                         if(edn.bv_len) {
 618                                 conn->c_dn = edn;
 619                         } else {
 620                                 conn->c_dn = pdn;
 621                                 pdn.bv_val = NULL;
 622                                 pdn.bv_len = 0;
 623                         }
 624
 625                         conn->c_ndn = ndn;
 626                         ndn.bv_val = NULL;
 627                         ndn.bv_len = 0;
 628
 629                         if( conn->c_dn.bv_len != 0 ) {
 630                                 ber_len_t max = sockbuf_max_incoming_auth;
 631                                 ber_sockbuf_ctrl( conn->c_sb,
 632                                         LBER_SB_OPT_SET_MAX_INCOMING, &max );
 633                         }
 634
 635                         /* log authorization identity */
 636                         Statslog( LDAP_DEBUG_STATS,
 637                                 "conn=%lu op=%lu BIND dn=\"%s\" mech=simple ssf=0\n",
 638                                 op->o_connid, op->o_opid,
 639                                 conn->c_dn.bv_val, conn->c_authmech.bv_val, 0 );
 640
 641 #ifdef NEW_LOGGING
 642                         LDAP_LOG( OPERATION, DETAIL1,
 643                                 "do_bind: v%d bind: \"%s\" to \"%s\" \n",
 644                                 version, conn->c_dn.bv_val, conn->c_dn.bv_val );
 645 #else
 646                         Debug( LDAP_DEBUG_TRACE,
 647                                 "do_bind: v%d bind: \"%s\" to \"%s\"\n",
 648                                 version, dn.bv_val, conn->c_dn.bv_val );
 649 #endif
 650
 651                         ldap_pvt_thread_mutex_unlock( &conn->c_mutex );
 652
 653                         /* send this here to avoid a race condition */
 654                         send_ldap_result( conn, op, LDAP_SUCCESS,
 655                                 NULL, NULL, NULL, NULL );
 656
 657                 } else if (edn.bv_val != NULL) {
 658                         free( edn.bv_val );
 659                 }
 660
 661         } else {
 662                 send_ldap_result( conn, op, rc = LDAP_UNWILLING_TO_PERFORM,
 663                         NULL, "operation not supported within namingContext",
 664                         NULL, NULL );
 665         }
 666
 667 #if defined( LDAP_SLAPI )
 668         if ( doPluginFNs( be, SLAPI_PLUGIN_POST_BIND_FN, pb ) != 0 ) {
 669 #ifdef NEW_LOGGING
 670                 LDAP_LOG( OPERATION, INFO, "do_bind: Bind postoperation plugins failed\n",
 671                                 0, 0, 0);
 672 #else
 673                 Debug(LDAP_DEBUG_TRACE, "do_bind: Bind postoperation plugins failed.\n",
 674                                 0, 0, 0);
 675 #endif
 676         }
 677 #endif /* defined( LDAP_SLAPI ) */
 678
 679 cleanup:
 680         conn->c_sasl_bindop = NULL;
 681
 682         if( pdn.bv_val != NULL ) {
 683                 free( pdn.bv_val );
 684         }
 685         if( ndn.bv_val != NULL ) {
 686                 free( ndn.bv_val );
 687         }
 688         if ( mech.bv_val != NULL ) {
 689                 free( mech.bv_val );
 690         }
 691
 692         return rc;
 693 }