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 #ifdef LDAP_SLAPI
  30 #include "slapi.h"
  31 #endif
  32
  33
  34 int
  35 do_bind(
  36     Connection  *conn,
  37     Operation   *op
  38 )
  39 {
  40         BerElement *ber = op->o_ber;
  41         ber_int_t version;
  42         ber_tag_t method;
  43         struct berval mech = { 0, NULL };
  44         struct berval dn = { 0, NULL };
  45         struct berval pdn = { 0, NULL };
  46         struct berval ndn = { 0, NULL };
  47         struct berval edn = { 0, NULL };
  48         ber_tag_t tag;
  49         int     rc = LDAP_SUCCESS;
  50         const char *text;
  51         struct berval cred = { 0, NULL };
  52         Backend *be = NULL;
  53
  54 #ifdef LDAP_SLAPI
  55         Slapi_PBlock *pb = op->o_pb;
  56 #endif
  57
  58 #ifdef NEW_LOGGING
  59         LDAP_LOG( OPERATION, ENTRY, "do_bind: conn %d\n", conn->c_connid, 0, 0 );
  60 #else
  61         Debug( LDAP_DEBUG_TRACE, "do_bind\n", 0, 0, 0 );
  62 #endif
  63
  64         /*
  65          * Force to connection to "anonymous" until bind succeeds.
  66          */
  67         ldap_pvt_thread_mutex_lock( &conn->c_mutex );
  68         if ( conn->c_sasl_bind_in_progress ) be = conn->c_authz_backend;
  69
  70         /* log authorization identity demotion */
  71         if ( conn->c_dn.bv_len ) {
  72                 Statslog( LDAP_DEBUG_STATS,
  73                         "conn=%lu op=%lu BIND anonymous mech=implicit ssf=0",
  74                         op->o_connid, op->o_opid, 0, 0, 0 );
  75         }
  76
  77         connection2anonymous( conn );
  78         if ( conn->c_sasl_bind_in_progress ) conn->c_authz_backend = be;
  79         ldap_pvt_thread_mutex_unlock( &conn->c_mutex );
  80
  81         if ( op->o_dn.bv_val != NULL ) {
  82                 free( op->o_dn.bv_val );
  83                 op->o_dn.bv_val = ch_strdup( "" );
  84                 op->o_dn.bv_len = 0;
  85         }
  86
  87         if ( op->o_ndn.bv_val != NULL ) {
  88                 free( op->o_ndn.bv_val );
  89                 op->o_ndn.bv_val = ch_strdup( "" );
  90                 op->o_ndn.bv_len = 0;
  91         }
  92
  93         /*
  94          * Parse the bind request.  It looks like this:
  95          *
  96          *      BindRequest ::= SEQUENCE {
  97          *              version         INTEGER,                 -- version
  98          *              name            DistinguishedName,       -- dn
  99          *              authentication  CHOICE {
 100          *                      simple          [0] OCTET STRING -- passwd
 101          *                      krbv42ldap      [1] OCTET STRING
 102          *                      krbv42dsa       [2] OCTET STRING
 103          *                      SASL            [3] SaslCredentials
 104          *              }
 105          *      }
 106          *
 107          *      SaslCredentials ::= SEQUENCE {
 108          *              mechanism           LDAPString,
 109          *              credentials         OCTET STRING OPTIONAL
 110          *      }
 111          */
 112
 113         tag = ber_scanf( ber, "{imt" /*}*/, &version, &dn, &method );
 114
 115         if ( tag == LBER_ERROR ) {
 116 #ifdef NEW_LOGGING
 117                 LDAP_LOG( OPERATION, ERR,
 118                         "do_bind: conn %d  ber_scanf failed\n", conn->c_connid, 0, 0 );
 119 #else
 120                 Debug( LDAP_DEBUG_ANY, "bind: ber_scanf failed\n", 0, 0, 0 );
 121 #endif
 122                 send_ldap_disconnect( conn, op,
 123                         LDAP_PROTOCOL_ERROR, "decoding error" );
 124                 rc = -1;
 125                 goto cleanup;
 126         }
 127
 128         op->o_protocol = version;
 129
 130         if( method != LDAP_AUTH_SASL ) {
 131                 tag = ber_scanf( ber, /*{*/ "m}", &cred );
 132
 133         } else {
 134                 tag = ber_scanf( ber, "{o" /*}*/, &mech );
 135
 136                 if ( tag != LBER_ERROR ) {
 137                         ber_len_t len;
 138                         tag = ber_peek_tag( ber, &len );
 139
 140                         if ( tag == LDAP_TAG_LDAPCRED ) {
 141                                 tag = ber_scanf( ber, "m", &cred );
 142                         } else {
 143                                 tag = LDAP_TAG_LDAPCRED;
 144                                 cred.bv_val = NULL;
 145                                 cred.bv_len = 0;
 146                         }
 147
 148                         if ( tag != LBER_ERROR ) {
 149                                 tag = ber_scanf( ber, /*{{*/ "}}" );
 150                         }
 151                 }
 152         }
 153
 154         if ( tag == LBER_ERROR ) {
 155                 send_ldap_disconnect( conn, op,
 156                         LDAP_PROTOCOL_ERROR,
 157                 "decoding error" );
 158                 rc = SLAPD_DISCONNECT;
 159                 goto cleanup;
 160         }
 161
 162         if( (rc = get_ctrls( conn, op, 1 )) != LDAP_SUCCESS ) {
 163 #ifdef NEW_LOGGING
 164                 LDAP_LOG( OPERATION, INFO,
 165                         "do_bind: conn %d  get_ctrls failed\n", conn->c_connid, 0, 0 );
 166 #else
 167                 Debug( LDAP_DEBUG_ANY, "do_bind: get_ctrls failed\n", 0, 0, 0 );
 168 #endif
 169                 goto cleanup;
 170         }
 171
 172         rc = dnPrettyNormal( NULL, &dn, &pdn, &ndn );
 173         if ( rc != LDAP_SUCCESS ) {
 174 #ifdef NEW_LOGGING
 175                 LDAP_LOG( OPERATION, INFO,
 176                         "do_bind: conn %d  invalid dn (%s)\n",
 177                         conn->c_connid, dn.bv_val, 0 );
 178 #else
 179                 Debug( LDAP_DEBUG_ANY, "bind: invalid dn (%s)\n",
 180                         dn.bv_val, 0, 0 );
 181 #endif
 182                 send_ldap_result( conn, op, rc = LDAP_INVALID_DN_SYNTAX, NULL,
 183                     "invalid DN", NULL, NULL );
 184                 goto cleanup;
 185         }
 186
 187         if( method == LDAP_AUTH_SASL ) {
 188 #ifdef NEW_LOGGING
 189                 LDAP_LOG( OPERATION,     DETAIL1,
 190                         "do_sasl_bind: conn %d  dn (%s) mech %s\n",
 191                         conn->c_connid, pdn.bv_val, mech.bv_val );
 192 #else
 193                 Debug( LDAP_DEBUG_TRACE, "do_sasl_bind: dn (%s) mech %s\n",
 194                         pdn.bv_val, mech.bv_val, NULL );
 195 #endif
 196
 197         } else {
 198 #ifdef NEW_LOGGING
 199                 LDAP_LOG( OPERATION, DETAIL1,
 200                         "do_bind: version=%ld dn=\"%s\" method=%ld\n",
 201                         (unsigned long) version, pdn.bv_val, (unsigned long)method );
 202 #else
 203                 Debug( LDAP_DEBUG_TRACE,
 204                         "do_bind: version=%ld dn=\"%s\" method=%ld\n",
 205                         (unsigned long) version,
 206                         pdn.bv_val, (unsigned long) method );
 207 #endif
 208         }
 209
 210         Statslog( LDAP_DEBUG_STATS, "conn=%lu op=%lu BIND dn=\"%s\" method=%ld\n",
 211             op->o_connid, op->o_opid, pdn.bv_val, (unsigned long) method, 0 );
 212
 213         if ( version < LDAP_VERSION_MIN || version > LDAP_VERSION_MAX ) {
 214 #ifdef NEW_LOGGING
 215                 LDAP_LOG( OPERATION, INFO,
 216                         "do_bind: conn %d  unknown version = %ld\n",
 217                         conn->c_connid, (unsigned long)version, 0 );
 218 #else
 219                 Debug( LDAP_DEBUG_ANY, "do_bind: unknown version=%ld\n",
 220                         (unsigned long) version, 0, 0 );
 221 #endif
 222                 send_ldap_result( conn, op, rc = LDAP_PROTOCOL_ERROR,
 223                         NULL, "requested protocol version not supported", NULL, NULL );
 224                 goto cleanup;
 225
 226         } else if (!( global_allows & SLAP_ALLOW_BIND_V2 ) &&
 227                 version < LDAP_VERSION3 )
 228         {
 229                 send_ldap_result( conn, op, rc = LDAP_PROTOCOL_ERROR,
 230                         NULL, "historical protocol version requested, use LDAPv3 instead",
 231                         NULL, NULL );
 232                 goto cleanup;
 233         }
 234
 235         /* we set connection version regardless of whether bind succeeds
 236          * or not.
 237          */
 238         ldap_pvt_thread_mutex_lock( &conn->c_mutex );
 239         conn->c_protocol = version;
 240         ldap_pvt_thread_mutex_unlock( &conn->c_mutex );
 241
 242         /* check for inappropriate controls */
 243         if( get_manageDSAit( op ) == SLAP_CRITICAL_CONTROL ) {
 244                 send_ldap_result( conn, op,
 245                         rc = LDAP_UNAVAILABLE_CRITICAL_EXTENSION,
 246                         NULL, "manageDSAit control inappropriate",
 247                         NULL, NULL );
 248                 goto cleanup;
 249         }
 250
 251         /* Set the bindop for the benefit of in-directory SASL lookups */
 252         conn->c_sasl_bindop = op;
 253
 254         if ( method == LDAP_AUTH_SASL ) {
 255                 slap_ssf_t ssf = 0;
 256
 257                 if ( version < LDAP_VERSION3 ) {
 258 #ifdef NEW_LOGGING
 259                         LDAP_LOG( OPERATION, INFO,
 260                                 "do_bind: conn %d  sasl with LDAPv%ld\n",
 261                                 conn->c_connid, (unsigned long)version , 0 );
 262 #else
 263                         Debug( LDAP_DEBUG_ANY, "do_bind: sasl with LDAPv%ld\n",
 264                                 (unsigned long) version, 0, 0 );
 265 #endif
 266                         send_ldap_disconnect( conn, op,
 267                                 LDAP_PROTOCOL_ERROR, "SASL bind requires LDAPv3" );
 268                         rc = SLAPD_DISCONNECT;
 269                         goto cleanup;
 270                 }
 271
 272                 if( mech.bv_len == 0 ) {
 273 #ifdef NEW_LOGGING
 274                         LDAP_LOG( OPERATION, INFO,
 275                                    "do_bind: conn %d  no SASL mechanism provided\n",
 276                                    conn->c_connid, 0, 0 );
 277 #else
 278                         Debug( LDAP_DEBUG_ANY,
 279                                 "do_bind: no sasl mechanism provided\n",
 280                                 0, 0, 0 );
 281 #endif
 282                         send_ldap_result( conn, op, rc = LDAP_AUTH_METHOD_NOT_SUPPORTED,
 283                                 NULL, "no SASL mechanism provided", NULL, NULL );
 284                         goto cleanup;
 285                 }
 286
 287                 /* check restrictions */
 288                 rc = backend_check_restrictions( NULL, conn, op, &mech, &text );
 289                 if( rc != LDAP_SUCCESS ) {
 290                         send_ldap_result( conn, op, rc,
 291                                 NULL, text, NULL, NULL );
 292                         goto cleanup;
 293                 }
 294
 295                 ldap_pvt_thread_mutex_lock( &conn->c_mutex );
 296                 if ( conn->c_sasl_bind_in_progress ) {
 297                         if( !bvmatch( &conn->c_sasl_bind_mech, &mech ) ) {
 298                                 /* mechanism changed between bind steps */
 299                                 slap_sasl_reset(conn);
 300                         }
 301                 } else {
 302                         conn->c_sasl_bind_mech = mech;
 303                         mech.bv_val = NULL;
 304                         mech.bv_len = 0;
 305                 }
 306                 ldap_pvt_thread_mutex_unlock( &conn->c_mutex );
 307
 308                 rc = slap_sasl_bind( conn, op,
 309                         &pdn, &ndn,
 310                         &cred, &edn, &ssf );
 311
 312                 ldap_pvt_thread_mutex_lock( &conn->c_mutex );
 313                 if( rc == LDAP_SUCCESS ) {
 314                         conn->c_dn = edn;
 315                         if( edn.bv_len != 0 ) {
 316                                 /* edn is always normalized already */
 317                                 ber_dupbv( &conn->c_ndn, &conn->c_dn );
 318                         }
 319                         conn->c_authmech = conn->c_sasl_bind_mech;
 320                         conn->c_sasl_bind_mech.bv_val = NULL;
 321                         conn->c_sasl_bind_mech.bv_len = 0;
 322                         conn->c_sasl_bind_in_progress = 0;
 323
 324                         conn->c_sasl_ssf = ssf;
 325                         if( ssf > conn->c_ssf ) {
 326                                 conn->c_ssf = ssf;
 327                         }
 328
 329                         if( conn->c_dn.bv_len != 0 ) {
 330                                 ber_len_t max = sockbuf_max_incoming_auth;
 331                                 ber_sockbuf_ctrl( conn->c_sb,
 332                                         LBER_SB_OPT_SET_MAX_INCOMING, &max );
 333                         }
 334
 335                         /* log authorization identity */
 336                         Statslog( LDAP_DEBUG_STATS,
 337                                 "conn=%lu op=%lu BIND dn=\"%s\" mech=%s ssf=%d\n",
 338                                 op->o_connid, op->o_opid,
 339                                 conn->c_dn.bv_val ? conn->c_dn.bv_val : "<empty>",
 340                                 conn->c_authmech.bv_val, ssf );
 341
 342 #ifdef NEW_LOGGING
 343                         LDAP_LOG( OPERATION, DETAIL1,
 344                                 "do_bind: SASL/%s bind: dn=\"%s\" ssf=%d\n",
 345                                 conn->c_authmech.bv_val,
 346                                 conn->c_dn.bv_val ? conn->c_dn.bv_val : "<empty>",
 347                                 ssf );
 348 #else
 349                         Debug( LDAP_DEBUG_TRACE,
 350                                 "do_bind: SASL/%s bind: dn=\"%s\" ssf=%d\n",
 351                                 conn->c_authmech.bv_val,
 352                                 conn->c_dn.bv_val ? conn->c_dn.bv_val : "<empty>",
 353                                 ssf );
 354 #endif
 355
 356                 } else if ( rc == LDAP_SASL_BIND_IN_PROGRESS ) {
 357                         conn->c_sasl_bind_in_progress = 1;
 358
 359                 } else {
 360                         if ( conn->c_sasl_bind_mech.bv_val ) {
 361                                 free( conn->c_sasl_bind_mech.bv_val );
 362                                 conn->c_sasl_bind_mech.bv_val = NULL;
 363                                 conn->c_sasl_bind_mech.bv_len = 0;
 364                         }
 365                         conn->c_sasl_bind_in_progress = 0;
 366                 }
 367                 ldap_pvt_thread_mutex_unlock( &conn->c_mutex );
 368
 369                 goto cleanup;
 370
 371         } else {
 372                 /* Not SASL, cancel any in-progress bind */
 373                 ldap_pvt_thread_mutex_lock( &conn->c_mutex );
 374
 375                 if ( conn->c_sasl_bind_mech.bv_val != NULL ) {
 376                         free(conn->c_sasl_bind_mech.bv_val);
 377                         conn->c_sasl_bind_mech.bv_val = NULL;
 378                         conn->c_sasl_bind_mech.bv_len = 0;
 379                 }
 380                 conn->c_sasl_bind_in_progress = 0;
 381
 382                 slap_sasl_reset( conn );
 383                 ldap_pvt_thread_mutex_unlock( &conn->c_mutex );
 384         }
 385
 386         if ( method == LDAP_AUTH_SIMPLE ) {
 387                 /* accept "anonymous" binds */
 388                 if ( cred.bv_len == 0 || ndn.bv_len == 0 ) {
 389                         rc = LDAP_SUCCESS;
 390                         text = NULL;
 391
 392                         if( cred.bv_len &&
 393                                 !( global_allows & SLAP_ALLOW_BIND_ANON_CRED ))
 394                         {
 395                                 /* cred is not empty, disallow */
 396                                 rc = LDAP_INVALID_CREDENTIALS;
 397
 398                         } else if ( ndn.bv_len &&
 399                                 !( global_allows & SLAP_ALLOW_BIND_ANON_DN ))
 400                         {
 401                                 /* DN is not empty, disallow */
 402                                 rc = LDAP_UNWILLING_TO_PERFORM;
 403                                 text = "unauthenticated bind (DN with no password) disallowed";
 404
 405                         } else if ( global_disallows & SLAP_DISALLOW_BIND_ANON ) {
 406                                 /* disallow */
 407                                 rc = LDAP_INAPPROPRIATE_AUTH;
 408                                 text = "anonymous bind disallowed";
 409
 410                         } else {
 411                                 rc = backend_check_restrictions( NULL, conn, op,
 412                                         &mech, &text );
 413                         }
 414
 415                         /*
 416                          * we already forced connection to "anonymous",
 417                          * just need to send success
 418                          */
 419                         send_ldap_result( conn, op, rc,
 420                                 NULL, text, NULL, NULL );
 421 #ifdef NEW_LOGGING
 422                         LDAP_LOG( OPERATION, DETAIL1,
 423                                    "do_bind: conn %d  v%d anonymous bind\n",
 424                                    conn->c_connid, version , 0 );
 425 #else
 426                         Debug( LDAP_DEBUG_TRACE, "do_bind: v%d anonymous bind\n",
 427                                 version, 0, 0 );
 428 #endif
 429                         goto cleanup;
 430
 431                 } else if ( global_disallows & SLAP_DISALLOW_BIND_SIMPLE ) {
 432                         /* disallow simple authentication */
 433                         rc = LDAP_UNWILLING_TO_PERFORM;
 434                         text = "unwilling to perform simple authentication";
 435
 436                         send_ldap_result( conn, op, rc,
 437                                 NULL, text, NULL, NULL );
 438 #ifdef NEW_LOGGING
 439                         LDAP_LOG( OPERATION, INFO,
 440                                    "do_bind: conn %d  v%d simple bind(%s) disallowed\n",
 441                                    conn->c_connid, version, ndn.bv_val );
 442 #else
 443                         Debug( LDAP_DEBUG_TRACE,
 444                                 "do_bind: v%d simple bind(%s) disallowed\n",
 445                                 version, ndn.bv_val, 0 );
 446 #endif
 447                         goto cleanup;
 448
 449                 } else if (( global_disallows & SLAP_DISALLOW_BIND_SIMPLE_UNPROTECTED )
 450                         && ( op->o_ssf <= 1 ))
 451                 {
 452                         rc = LDAP_CONFIDENTIALITY_REQUIRED;
 453                         text = "unwilling to perform simple authentication "
 454                                 "without confidentilty protection";
 455
 456                         send_ldap_result( conn, op, rc,
 457                                 NULL, text, NULL, NULL );
 458
 459 #ifdef NEW_LOGGING
 460                         LDAP_LOG( OPERATION, INFO, "do_bind: conn %d  "
 461                                 "v%d unprotected simple bind(%s) disallowed\n",
 462                                 conn->c_connid, version, ndn.bv_val );
 463 #else
 464                         Debug( LDAP_DEBUG_TRACE,
 465                                 "do_bind: v%d unprotected simple bind(%s) disallowed\n",
 466                                 version, ndn.bv_val, 0 );
 467 #endif
 468                         goto cleanup;
 469                 }
 470
 471 #ifdef LDAP_API_FEATURE_X_OPENLDAP_V2_KBIND
 472         } else if ( method == LDAP_AUTH_KRBV41 || method == LDAP_AUTH_KRBV42 ) {
 473                 if ( global_disallows & SLAP_DISALLOW_BIND_KRBV4 ) {
 474                         /* disallow simple authentication */
 475                         rc = LDAP_UNWILLING_TO_PERFORM;
 476                         text = "unwilling to perform Kerberos V4 bind";
 477
 478                         send_ldap_result( conn, op, rc,
 479                                 NULL, text, NULL, NULL );
 480 #ifdef NEW_LOGGING
 481                         LDAP_LOG( OPERATION, DETAIL1,
 482                                    "do_bind: conn %d  v%d Kerberos V4 bind\n",
 483                                    conn->c_connid, version , 0 );
 484 #else
 485                         Debug( LDAP_DEBUG_TRACE, "do_bind: v%d Kerberos V4 bind\n",
 486                                 version, 0, 0 );
 487 #endif
 488                         goto cleanup;
 489                 }
 490 #endif
 491
 492         } else {
 493                 rc = LDAP_AUTH_METHOD_NOT_SUPPORTED;
 494                 text = "unknown authentication method";
 495
 496                 send_ldap_result( conn, op, rc,
 497                         NULL, text, NULL, NULL );
 498 #ifdef NEW_LOGGING
 499                 LDAP_LOG( OPERATION, INFO,
 500                            "do_bind: conn %ld  v%d unknown authentication method (%ld)\n",
 501                            conn->c_connid, version, method );
 502 #else
 503                 Debug( LDAP_DEBUG_TRACE,
 504                         "do_bind: v%d unknown authentication method (%ld)\n",
 505                         version, method, 0 );
 506 #endif
 507                 goto cleanup;
 508         }
 509
 510         /*
 511          * We could be serving multiple database backends.  Select the
 512          * appropriate one, or send a referral to our "referral server"
 513          * if we don't hold it.
 514          */
 515
 516         if ( (be = select_backend( &ndn, 0, 0 )) == NULL ) {
 517                 if ( default_referral ) {
 518                         BerVarray ref = referral_rewrite( default_referral,
 519                                 NULL, &pdn, LDAP_SCOPE_DEFAULT );
 520
 521                         send_ldap_result( conn, op, rc = LDAP_REFERRAL,
 522                                 NULL, NULL, ref ? ref : default_referral, NULL );
 523
 524                         ber_bvarray_free( ref );
 525
 526                 } else {
 527                         /* noSuchObject is not allowed to be returned by bind */
 528                         send_ldap_result( conn, op, rc = LDAP_INVALID_CREDENTIALS,
 529                                 NULL, NULL, NULL, NULL );
 530                 }
 531
 532                 goto cleanup;
 533         }
 534
 535         /* check restrictions */
 536         rc = backend_check_restrictions( be, conn, op, NULL, &text );
 537         if( rc != LDAP_SUCCESS ) {
 538                 send_ldap_result( conn, op, rc,
 539                         NULL, text, NULL, NULL );
 540                 goto cleanup;
 541         }
 542
 543 #if defined( LDAP_SLAPI )
 544         slapi_x_backend_set_pb( pb, be );
 545         slapi_x_connection_set_pb( pb, conn );
 546         slapi_x_operation_set_pb( pb, op );
 547         slapi_pblock_set( pb, SLAPI_BIND_TARGET, (void *)dn.bv_val );
 548         slapi_pblock_set( pb, SLAPI_BIND_METHOD, (void *)method );
 549         slapi_pblock_set( pb, SLAPI_BIND_CREDENTIALS, (void *)&cred );
 550         slapi_pblock_set( pb, SLAPI_MANAGEDSAIT, (void *)(0) );
 551
 552         rc = doPluginFNs( be, SLAPI_PLUGIN_PRE_BIND_FN, pb );
 553         if ( rc != SLAPI_BIND_SUCCESS ) {
 554                 /*
 555                  * Binding is a special case for SLAPI plugins. It is
 556                  * possible for a bind plugin to be successful *and*
 557                  * abort further processing; this means it has handled
 558                  * a bind request authoritatively. If we have reached
 559                  * here, a result has been sent to the client (XXX
 560                  * need to check with Sun whether SLAPI_BIND_ANONYMOUS
 561                  * means a result has been sent).
 562                  */
 563                 int ldapRc;
 564
 565                 if ( slapi_pblock_get( pb, SLAPI_RESULT_CODE, (void *)&ldapRc ) != 0 )
 566                         ldapRc = LDAP_OTHER;
 567
 568                 edn.bv_val = NULL;
 569                 edn.bv_len = 0;
 570                 if ( rc != SLAPI_BIND_FAIL && ldapRc == LDAP_SUCCESS ) {
 571                         /* Set the new connection DN. */
 572                         if ( rc != SLAPI_BIND_ANONYMOUS ) {
 573                                 slapi_pblock_get( pb, SLAPI_CONN_DN, (void *)&edn.bv_val );
 574                         }
 575                         rc = dnPrettyNormal( NULL, &edn, &pdn, &ndn );
 576                         ldap_pvt_thread_mutex_lock( &conn->c_mutex );
 577                         conn->c_dn = pdn;
 578                         conn->c_ndn = ndn;
 579                         pdn.bv_val = NULL;
 580                         pdn.bv_len = 0;
 581                         ndn.bv_val = NULL;
 582                         ndn.bv_len = 0;
 583                         if ( conn->c_dn.bv_len != 0 ) {
 584                                 ber_len_t max = sockbuf_max_incoming_auth;
 585                                 ber_sockbuf_ctrl( conn->c_sb, LBER_SB_OPT_SET_MAX_INCOMING, &max );
 586                         }
 587                         /* log authorization identity */
 588                         Statslog( LDAP_DEBUG_STATS,
 589                                 "conn=%lu op=%lu BIND dn=\"%s\" mech=simple (SLAPI) ssf=0\n",
 590                                 op->o_connid, op->o_opid,
 591                                 conn->c_dn.bv_val, 0, 0 );
 592                         ldap_pvt_thread_mutex_unlock( &conn->c_mutex );
 593                 }
 594 #ifdef NEW_LOGGING
 595                 LDAP_LOG( OPERATION, INFO, "do_bind: Bind preoperation plugin returned %d\n",
 596                                 rc, 0, 0);
 597 #else
 598                 Debug(LDAP_DEBUG_TRACE, "do_bind: Bind preoperation plugin returned %d.\n",
 599                                 rc, 0, 0);
 600 #endif
 601                 rc = ldapRc;
 602                 goto cleanup;
 603         }
 604 #endif /* defined( LDAP_SLAPI ) */
 605
 606         if ( be->be_bind ) {
 607                 int ret;
 608
 609                 ret = (*be->be_bind)( be, conn, op,
 610                         &pdn, &ndn, method, &cred, &edn );
 611
 612                 if ( ret == 0 ) {
 613                         ldap_pvt_thread_mutex_lock( &conn->c_mutex );
 614
 615                         if( conn->c_authz_backend == NULL ) {
 616                                 conn->c_authz_backend = be;
 617                         }
 618
 619                         if(edn.bv_len) {
 620                                 conn->c_dn = edn;
 621                         } else {
 622                                 conn->c_dn = pdn;
 623                                 pdn.bv_val = NULL;
 624                                 pdn.bv_len = 0;
 625                         }
 626
 627                         conn->c_ndn = ndn;
 628                         ndn.bv_val = NULL;
 629                         ndn.bv_len = 0;
 630
 631                         if( conn->c_dn.bv_len != 0 ) {
 632                                 ber_len_t max = sockbuf_max_incoming_auth;
 633                                 ber_sockbuf_ctrl( conn->c_sb,
 634                                         LBER_SB_OPT_SET_MAX_INCOMING, &max );
 635                         }
 636
 637                         /* log authorization identity */
 638                         Statslog( LDAP_DEBUG_STATS,
 639                                 "conn=%lu op=%lu BIND dn=\"%s\" mech=simple ssf=0\n",
 640                                 op->o_connid, op->o_opid,
 641                                 conn->c_dn.bv_val, conn->c_authmech.bv_val, 0 );
 642
 643 #ifdef NEW_LOGGING
 644                         LDAP_LOG( OPERATION, DETAIL1,
 645                                 "do_bind: v%d bind: \"%s\" to \"%s\" \n",
 646                                 version, conn->c_dn.bv_val, conn->c_dn.bv_val );
 647 #else
 648                         Debug( LDAP_DEBUG_TRACE,
 649                                 "do_bind: v%d bind: \"%s\" to \"%s\"\n",
 650                                 version, dn.bv_val, conn->c_dn.bv_val );
 651 #endif
 652
 653                         ldap_pvt_thread_mutex_unlock( &conn->c_mutex );
 654
 655                         /* send this here to avoid a race condition */
 656                         send_ldap_result( conn, op, LDAP_SUCCESS,
 657                                 NULL, NULL, NULL, NULL );
 658
 659                 } else if (edn.bv_val != NULL) {
 660                         free( edn.bv_val );
 661                 }
 662
 663         } else {
 664                 send_ldap_result( conn, op, rc = LDAP_UNWILLING_TO_PERFORM,
 665                         NULL, "operation not supported within namingContext",
 666                         NULL, NULL );
 667         }
 668
 669 #if defined( LDAP_SLAPI )
 670         if ( doPluginFNs( be, SLAPI_PLUGIN_POST_BIND_FN, pb ) != 0 ) {
 671 #ifdef NEW_LOGGING
 672                 LDAP_LOG( OPERATION, INFO, "do_bind: Bind postoperation plugins failed\n",
 673                                 0, 0, 0);
 674 #else
 675                 Debug(LDAP_DEBUG_TRACE, "do_bind: Bind postoperation plugins failed.\n",
 676                                 0, 0, 0);
 677 #endif
 678         }
 679 #endif /* defined( LDAP_SLAPI ) */
 680
 681 cleanup:
 682         conn->c_sasl_bindop = NULL;
 683
 684         if( pdn.bv_val != NULL ) {
 685                 free( pdn.bv_val );
 686         }
 687         if( ndn.bv_val != NULL ) {
 688                 free( ndn.bv_val );
 689         }
 690         if ( mech.bv_val != NULL ) {
 691                 free( mech.bv_val );
 692         }
 693
 694         return rc;
 695 }