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

   1 /* $OpenLDAP$ */
   2 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
   3  *
   4  * Copyright 1999-2005 The OpenLDAP Foundation.
   5  * Portions Copyright 2001-2003 Pierangelo Masarati.
   6  * Portions Copyright 1999-2003 Howard Chu.
   7  * All rights reserved.
   8  *
   9  * Redistribution and use in source and binary forms, with or without
  10  * modification, are permitted only as authorized by the OpenLDAP
  11  * Public License.
  12  *
  13  * A copy of this license is available in the file LICENSE in the
  14  * top-level directory of the distribution or, alternatively, at
  15  * <http://www.OpenLDAP.org/license.html>.
  16  */
  17 /* ACKNOWLEDGEMENTS:
  18  * This work was initially developed by the Howard Chu for inclusion
  19  * in OpenLDAP Software and subsequently enhanced by Pierangelo
  20  * Masarati.
  21  */
  22
  23 #include "portable.h"
  24
  25 #include <stdio.h>
  26
  27 #include <ac/errno.h>
  28 #include <ac/socket.h>
  29 #include <ac/string.h>
  30
  31
  32 #define AVL_INTERNAL
  33 #include "slap.h"
  34 #include "../back-ldap/back-ldap.h"
  35 #include "back-meta.h"
  36
  37 static LDAP_REBIND_PROC meta_back_rebind;
  38
  39 static int
  40 meta_back_single_bind(
  41         Operation               *op,
  42         SlapReply               *rs,
  43         metaconn_t              *mc,
  44         int                     candidate );
  45
  46 int
  47 meta_back_bind( Operation *op, SlapReply *rs )
  48 {
  49         metainfo_t      *mi = ( metainfo_t * )op->o_bd->be_private;
  50         metaconn_t      *mc = NULL;
  51
  52         int             rc = LDAP_OTHER,
  53                         i, gotit = 0, isroot = 0;
  54
  55         SlapReply       *candidates = meta_back_candidates_get( op );
  56
  57         rs->sr_err = LDAP_SUCCESS;
  58
  59         Debug( LDAP_DEBUG_ARGS, "meta_back_bind: dn: %s.\n%s%s",
  60                         op->o_req_dn.bv_val, "", "" );
  61
  62         if ( op->orb_method == LDAP_AUTH_SIMPLE && be_isroot_pw( op ) ) {
  63                 isroot = 1;
  64                 ber_dupbv( &op->orb_edn, be_root_dn( op->o_bd ) );
  65         }
  66
  67         /* we need meta_back_getconn() not send result even on error,
  68          * because we want to intercept the error and make it
  69          * invalidCredentials */
  70         mc = meta_back_getconn( op, rs, NULL, LDAP_BACK_DONTSEND );
  71         if ( !mc ) {
  72                 Debug( LDAP_DEBUG_ANY,
  73                                 "meta_back_bind: no target "
  74                                 "for dn \"%s\" (%d: %s).\n",
  75                                 op->o_req_dn.bv_val, rs->sr_err,
  76                                 rs->sr_text ? rs->sr_text : "" );
  77                 /* FIXME: there might be cases where we don't want
  78                  * to map the error onto invalidCredentials */
  79                 switch ( rs->sr_err ) {
  80                 case LDAP_NO_SUCH_OBJECT:
  81                 case LDAP_UNWILLING_TO_PERFORM:
  82                         rs->sr_err = LDAP_INVALID_CREDENTIALS;
  83                         rs->sr_text = NULL;
  84                         break;
  85                 }
  86                 send_ldap_result( op, rs );
  87                 return rs->sr_err;
  88         }
  89
  90         /*
  91          * Each target is scanned ...
  92          */
  93         mc->mc_auth_target = META_BOUND_NONE;
  94         for ( i = 0; i < mi->mi_ntargets; i++ ) {
  95                 int             lerr;
  96                 Operation       op2 = *op;
  97
  98                 /*
  99                  * Skip non-candidates
 100                  */
 101                 if ( candidates[ i ].sr_tag != META_CANDIDATE ) {
 102                         continue;
 103                 }
 104
 105                 if ( gotit == 0 ) {
 106                         gotit = 1;
 107
 108                 } else if ( isroot == 0 ) {
 109                         /*
 110                          * A bind operation is expected to have
 111                          * ONE CANDIDATE ONLY!
 112                          */
 113                         Debug( LDAP_DEBUG_ANY,
 114                                         "==>meta_back_bind: more than one"
 115                                         " candidate is trying to bind...\n",
 116                                         0, 0, 0 );
 117                 }
 118
 119                 if ( isroot && !BER_BVISNULL( &mi->mi_targets[ i ].mt_pseudorootdn ) )
 120                 {
 121                         op2.o_req_dn = mi->mi_targets[ i ].mt_pseudorootdn;
 122                         op2.o_req_ndn = mi->mi_targets[ i ].mt_pseudorootdn;
 123                         op2.orb_cred = mi->mi_targets[ i ].mt_pseudorootpw;
 124                         op2.orb_method = LDAP_AUTH_SIMPLE;
 125                 }
 126
 127                 lerr = meta_back_single_bind( &op2, rs, mc, i );
 128                 if ( lerr != LDAP_SUCCESS ) {
 129                         rs->sr_err = lerr;
 130                         candidates[ i ].sr_tag = META_NOT_CANDIDATE;
 131
 132                 } else {
 133                         rc = LDAP_SUCCESS;
 134                 }
 135         }
 136
 137         if ( isroot ) {
 138                 mc->mc_auth_target = META_BOUND_ALL;
 139         }
 140
 141         meta_back_release_conn( op, mc );
 142
 143         /*
 144          * rc is LDAP_SUCCESS if at least one bind succeeded,
 145          * err is the last error that occurred during a bind;
 146          * if at least (and at most?) one bind succeedes, fine.
 147          */
 148         if ( rc != LDAP_SUCCESS ) {
 149
 150                 /*
 151                  * deal with bind failure ...
 152                  */
 153
 154                 /*
 155                  * no target was found within the naming context,
 156                  * so bind must fail with invalid credentials
 157                  */
 158                 if ( rs->sr_err == LDAP_SUCCESS && gotit == 0 ) {
 159                         rs->sr_err = LDAP_INVALID_CREDENTIALS;
 160                 }
 161
 162                 rs->sr_err = slap_map_api2result( rs );
 163                 send_ldap_result( op, rs );
 164                 return rs->sr_err;
 165         }
 166
 167         return LDAP_SUCCESS;
 168 }
 169
 170 /*
 171  * meta_back_single_bind
 172  *
 173  * attempts to perform a bind with creds
 174  */
 175 static int
 176 meta_back_single_bind(
 177         Operation               *op,
 178         SlapReply               *rs,
 179         metaconn_t              *mc,
 180         int                     candidate )
 181 {
 182         metainfo_t              *mi = ( metainfo_t * )op->o_bd->be_private;
 183         metatarget_t            *mt = &mi->mi_targets[ candidate ];
 184         struct berval           mdn = BER_BVNULL;
 185         dncookie                dc;
 186         metasingleconn_t        *msc = &mc->mc_conns[ candidate ];
 187         int                     msgid,
 188                                 rebinding = 0;
 189
 190         /*
 191          * Rewrite the bind dn if needed
 192          */
 193         dc.target = &mi->mi_targets[ candidate ];
 194         dc.conn = op->o_conn;
 195         dc.rs = rs;
 196         dc.ctx = "bindDN";
 197
 198         if ( ldap_back_dn_massage( &dc, &op->o_req_dn, &mdn ) ) {
 199                 send_ldap_result( op, rs );
 200                 return -1;
 201         }
 202
 203         /* FIXME: this fixes the bind problem right now; we need
 204          * to use the asynchronous version to get the "matched"
 205          * and more in case of failure ... */
 206         /* FIXME: should be check if at least some of the op->o_ctrls
 207          * can/should be passed? */
 208 rebind:;
 209         rs->sr_err = ldap_sasl_bind( msc->msc_ld, mdn.bv_val,
 210                         LDAP_SASL_SIMPLE, &op->orb_cred,
 211                         op->o_ctrls, NULL, &msgid );
 212         if ( rs->sr_err == LDAP_SUCCESS ) {
 213                 LDAPMessage     *res;
 214                 struct timeval  tv;
 215                 int             rc;
 216                 int             nretries = mt->mt_nretries;
 217
 218                 /*
 219                  * handle response!!!
 220                  */
 221 retry:;
 222                 tv.tv_sec = 0;
 223                 tv.tv_usec = META_BIND_TIMEOUT;
 224                 switch ( ldap_result( msc->msc_ld, msgid, 0, &tv, &res ) ) {
 225                 case 0:
 226                         Debug( LDAP_DEBUG_ANY,
 227                                 "%s meta_back_single_bind: "
 228                                 "ldap_result=0 nretries=%d%s\n",
 229                                 op->o_log_prefix, nretries,
 230                                 rebinding ? " rebinding" : "" );
 231
 232                         if ( nretries != META_RETRY_NEVER ) {
 233                                 ldap_pvt_thread_yield();
 234                                 if ( nretries > 0 ) {
 235                                         nretries--;
 236                                 }
 237                                 goto retry;
 238                         }
 239                         rs->sr_err = LDAP_BUSY;
 240                         if ( rebinding ) {
 241                                 ldap_abandon_ext( msc->msc_ld, msgid, NULL, NULL );
 242                                 break;
 243                         }
 244
 245                         /* FIXME: some times the request times out
 246                          * while the other party is not willing to
 247                          * send a response any more.  Give it a second
 248                          * chance with a freshly bound connection */
 249                         rebinding = 1;
 250                         nretries = mt->mt_nretries;
 251                         /* fallthru */
 252
 253                 case -1:
 254                         ldap_get_option( msc->msc_ld, LDAP_OPT_ERROR_NUMBER,
 255                                         &rs->sr_err );
 256
 257                         if ( rebinding ) {
 258                                 ldap_abandon_ext( msc->msc_ld, msgid, NULL, NULL );
 259                         }
 260
 261                         Debug( LDAP_DEBUG_ANY,
 262                                 "### %s meta_back_single_bind: "
 263                                 "err=%d nretries=%d\n",
 264                                 op->o_log_prefix, rs->sr_err, nretries );
 265
 266                         rc = slap_map_api2result( rs );
 267                         if ( rs->sr_err == LDAP_UNAVAILABLE && nretries != META_RETRY_NEVER ) {
 268                                 ldap_pvt_thread_mutex_lock( &mi->mi_conn_mutex );
 269                                 if ( mc->mc_refcnt == 1 ) {
 270                                         ldap_unbind_ext_s( msc->msc_ld, NULL, NULL );
 271                                         msc->msc_ld = NULL;
 272                                         msc->msc_bound = 0;
 273
 274                                         ( void )rewrite_session_delete( mt->mt_rwmap.rwm_rw, op->o_conn );
 275
 276                                         /* mc here must be the regular mc,
 277                                          * reset and ready for init */
 278                                         rc = meta_back_init_one_conn( op, rs,
 279                                                 mt, msc, LDAP_BACK_DONTSEND );
 280
 281                                 } else {
 282                                         /* can't do anything about it */
 283                                         rc = 0;
 284                                 }
 285
 286                                 ldap_pvt_thread_mutex_unlock( &mi->mi_conn_mutex );
 287
 288                                 if ( rc ) {
 289                                         if ( nretries > 0 ) {
 290                                                 nretries--;
 291                                         }
 292                                         ldap_pvt_thread_yield();
 293                                         goto rebind;
 294                                 }
 295                         }
 296                         break;
 297
 298                 default:
 299                         rc = ldap_parse_result( msc->msc_ld, res, &rs->sr_err,
 300                                         NULL, NULL, NULL, NULL, 1 );
 301                         if ( rc != LDAP_SUCCESS ) {
 302                                 rs->sr_err = rc;
 303                         }
 304                         break;
 305                 }
 306         }
 307
 308         if ( rs->sr_err != LDAP_SUCCESS ) {
 309                 rs->sr_err = slap_map_api2result( rs );
 310                 goto return_results;
 311         }
 312
 313         ber_bvreplace( &msc->msc_bound_ndn, &op->o_req_dn );
 314         msc->msc_bound = META_BOUND;
 315         mc->mc_auth_target = candidate;
 316
 317         if ( LDAP_BACK_SAVECRED( mi ) ) {
 318                 ber_bvreplace( &msc->msc_cred, &op->orb_cred );
 319                 ldap_set_rebind_proc( msc->msc_ld, meta_back_rebind, msc );
 320         }
 321
 322         if ( mi->mi_cache.ttl != META_DNCACHE_DISABLED
 323                         && op->o_req_ndn.bv_len != 0 )
 324         {
 325                 ( void )meta_dncache_update_entry( &mi->mi_cache,
 326                                 &op->o_req_ndn, candidate );
 327         }
 328
 329 return_results:;
 330         if ( mdn.bv_val != op->o_req_dn.bv_val ) {
 331                 free( mdn.bv_val );
 332         }
 333
 334         return rs->sr_err;
 335 }
 336
 337 /*
 338  * meta_back_single_dobind
 339  */
 340 int
 341 meta_back_single_dobind(
 342         Operation               *op,
 343         SlapReply               *rs,
 344         metaconn_t              *mc,
 345         int                     candidate,
 346         ldap_back_send_t        sendok,
 347         int                     nretries,
 348         int                     dolock )
 349 {
 350         metainfo_t              *mi = ( metainfo_t * )op->o_bd->be_private;
 351         metatarget_t            *mt = &mi->mi_targets[ candidate ];
 352         metasingleconn_t        *msc = &mc->mc_conns[ candidate ];
 353         int                     rc;
 354         struct berval           cred = BER_BVC( "" );
 355         int                     msgid,
 356                                 rebinding = 0,
 357                                 save_nretries = nretries;
 358
 359         /*
 360          * Otherwise an anonymous bind is performed
 361          * (note: if the target was already bound, the anonymous
 362          * bind clears the previous bind).
 363          */
 364         if ( !BER_BVISNULL( &msc->msc_bound_ndn ) ) {
 365                 ber_memfree( msc->msc_bound_ndn.bv_val );
 366                 BER_BVZERO( &msc->msc_bound_ndn );
 367         }
 368
 369         if ( !BER_BVISNULL( &msc->msc_cred ) ) {
 370                 /* destroy sensitive data */
 371                 memset( msc->msc_cred.bv_val, 0, msc->msc_cred.bv_len );
 372                 ber_memfree( msc->msc_cred.bv_val );
 373                 BER_BVZERO( &msc->msc_cred );
 374         }
 375
 376         /* FIXME: should we check if at least some of the op->o_ctrls
 377          * can/should be passed? */
 378 rebind:;
 379         rc = ldap_sasl_bind( msc->msc_ld, "", LDAP_SASL_SIMPLE, &cred,
 380                         NULL, NULL, &msgid );
 381         if ( rc == LDAP_SUCCESS ) {
 382                 LDAPMessage     *res;
 383                 struct timeval  tv;
 384
 385                 /*
 386                  * handle response!!!
 387                  */
 388 retry:;
 389                 tv.tv_sec = 0;
 390                 tv.tv_usec = META_BIND_TIMEOUT;
 391                 switch ( ldap_result( msc->msc_ld, msgid, 0, &tv, &res ) ) {
 392                 case 0:
 393                         Debug( LDAP_DEBUG_ANY,
 394                                 "%s meta_back_single_dobind: "
 395                                 "ldap_result=0 nretries=%d%s\n",
 396                                 op->o_log_prefix, nretries,
 397                                 rebinding ? " rebinding" : "" );
 398
 399                         if ( nretries != META_RETRY_NEVER ) {
 400                                 ldap_pvt_thread_yield();
 401                                 if ( nretries > 0 ) {
 402                                         nretries--;
 403                                 }
 404                                 goto retry;
 405                         }
 406
 407                         rc = LDAP_BUSY;
 408                         if ( rebinding ) {
 409                                 ldap_abandon_ext( msc->msc_ld, msgid, NULL, NULL );
 410                                 break;
 411                         }
 412
 413                         /* FIXME: some times the request times out
 414                          * while the other party is not willing to
 415                          * send a response any more.  Give it a second
 416                          * chance with a freshly bound connection */
 417                         rebinding = 1;
 418                         nretries = save_nretries;
 419                         /* fallthru */
 420
 421                 case -1:
 422                         ldap_get_option( msc->msc_ld,
 423                                         LDAP_OPT_ERROR_NUMBER, &rs->sr_err );
 424
 425                         if ( rebinding ) {
 426                                 ldap_abandon_ext( msc->msc_ld, msgid, NULL, NULL );
 427                         }
 428
 429                         Debug( LDAP_DEBUG_ANY,
 430                                 "### %s meta_back_single_dobind: "
 431                                 "err=%d nretries=%d\n",
 432                                 op->o_log_prefix, rs->sr_err, nretries );
 433
 434                         rc = slap_map_api2result( rs );
 435                         if ( rc == LDAP_UNAVAILABLE && nretries != META_RETRY_NEVER ) {
 436                                 if ( dolock ) {
 437                                         ldap_pvt_thread_mutex_lock( &mi->mi_conn_mutex );
 438                                 }
 439
 440                                 if ( mc->mc_refcnt == 1 ) {
 441                                         ldap_unbind_ext_s( msc->msc_ld, NULL, NULL );
 442                                         msc->msc_ld = NULL;
 443                                         msc->msc_bound = 0;
 444
 445                                         ( void )rewrite_session_delete( mt->mt_rwmap.rwm_rw, op->o_conn );
 446
 447                                         /* mc here must be the regular mc,
 448                                          * reset and ready for init */
 449                                         rc = meta_back_init_one_conn( op, rs,
 450                                                 mt, msc, LDAP_BACK_DONTSEND );
 451
 452
 453                                 } else {
 454                                         /* can't do anything about it */
 455                                         rc = LDAP_UNAVAILABLE;
 456                                 }
 457
 458                                 if ( dolock ) {
 459                                         ldap_pvt_thread_mutex_unlock( &mi->mi_conn_mutex );
 460                                 }
 461
 462                                 if ( rc == LDAP_SUCCESS ) {
 463                                         ldap_pvt_thread_yield();
 464                                         if ( nretries > 0 ) {
 465                                                 nretries--;
 466                                         }
 467                                         goto rebind;
 468                                 }
 469                         }
 470                         break;
 471
 472                 default:
 473                         rc = ldap_parse_result( msc->msc_ld, res, &rs->sr_err,
 474                                         NULL, NULL, NULL, NULL, 1 );
 475                         if ( rc == LDAP_SUCCESS ) {
 476                                 rc = slap_map_api2result( rs );
 477                         }
 478                         break;
 479                 }
 480
 481         } else {
 482                 rc = slap_map_api2result( rs );
 483         }
 484
 485         rs->sr_err = rc;
 486         if ( rc != LDAP_SUCCESS && ( sendok & LDAP_BACK_SENDERR ) ) {
 487                 send_ldap_result( op, rs );
 488         }
 489
 490         return rc;
 491 }
 492
 493 /*
 494  * meta_back_dobind
 495  */
 496 int
 497 meta_back_dobind(
 498         Operation               *op,
 499         SlapReply               *rs,
 500         metaconn_t              *mc,
 501         ldap_back_send_t        sendok )
 502 {
 503         metainfo_t              *mi = ( metainfo_t * )op->o_bd->be_private;
 504
 505         int                     bound = 0,
 506                                 i,
 507                                 isroot = 0;
 508
 509         SlapReply               *candidates = meta_back_candidates_get( op );
 510
 511         if ( be_isroot( op ) ) {
 512                 isroot = 1;
 513         }
 514
 515         Debug( LDAP_DEBUG_TRACE,
 516                 "%s meta_back_dobind: conn=%ld%s\n",
 517                 op->o_log_prefix, mc->mc_conn->c_connid,
 518                 isroot ? " (isroot)" : "" );
 519
 520         ldap_pvt_thread_mutex_lock( &mc->mc_mutex );
 521
 522         /*
 523          * all the targets are bound as pseudoroot
 524          */
 525         if ( mc->mc_auth_target == META_BOUND_ALL ) {
 526                 bound = 1;
 527                 goto done;
 528         }
 529
 530         for ( i = 0; i < mi->mi_ntargets; i++ ) {
 531                 metatarget_t            *mt = &mi->mi_targets[ i ];
 532                 metasingleconn_t        *msc = &mc->mc_conns[ i ];
 533                 int                     rc;
 534
 535                 /*
 536                  * Not a candidate
 537                  */
 538                 if ( candidates[ i ].sr_tag != META_CANDIDATE ) {
 539                         continue;
 540                 }
 541
 542                 assert( msc->msc_ld != NULL );
 543
 544                 /*
 545                  * If the target is already bound it is skipped
 546                  */
 547                 if ( msc->msc_bound == META_BOUND && mc->mc_auth_target == i ) {
 548                         ++bound;
 549
 550                         Debug( LDAP_DEBUG_TRACE, "%s meta_back_dobind[%d]: "
 551                                         "authcTarget\n",
 552                                         op->o_log_prefix, i, 0 );
 553                         continue;
 554                 }
 555
 556                 if ( isroot && !BER_BVISNULL( &mi->mi_targets[ i ].mt_pseudorootdn ) )
 557                 {
 558                         Operation       op2 = *op;
 559
 560                         op2.o_tag = LDAP_REQ_BIND;
 561                         op2.o_req_dn = mi->mi_targets[ i ].mt_pseudorootdn;
 562                         op2.o_req_ndn = mi->mi_targets[ i ].mt_pseudorootdn;
 563                         op2.orb_cred = mi->mi_targets[ i ].mt_pseudorootpw;
 564                         op2.orb_method = LDAP_AUTH_SIMPLE;
 565
 566                         rc = meta_back_single_bind( &op2, rs, mc, i );
 567
 568                 } else {
 569                         rc = meta_back_single_dobind( op, rs, mc, i,
 570                                 LDAP_BACK_DONTSEND, mt->mt_nretries, 1 );
 571                 }
 572
 573                 if ( rc != LDAP_SUCCESS ) {
 574                         rs->sr_err = slap_map_api2result( rs );
 575
 576                         Debug( LDAP_DEBUG_ANY, "%s meta_back_dobind[%d]: "
 577                                         "(anonymous) err=%d\n",
 578                                         op->o_log_prefix, i, rc );
 579
 580                         /*
 581                          * null cred bind should always succeed
 582                          * as anonymous, so a failure means
 583                          * the target is no longer candidate possibly
 584                          * due to technical reasons (remote host down?)
 585                          * so better clear the handle
 586                          */
 587                         candidates[ i ].sr_tag = META_NOT_CANDIDATE;
 588                         continue;
 589                 } /* else */
 590
 591                 Debug( LDAP_DEBUG_TRACE, "%s meta_back_dobind[%d]: "
 592                                 "(anonymous)\n",
 593                                 op->o_log_prefix, i, 0 );
 594
 595                 msc->msc_bound = META_ANONYMOUS;
 596                 ++bound;
 597         }
 598
 599 done:;
 600         ldap_pvt_thread_mutex_unlock( &mc->mc_mutex );
 601
 602         Debug( LDAP_DEBUG_TRACE,
 603                 "%s meta_back_dobind: conn=%ld bound=%d\n",
 604                 op->o_log_prefix, mc->mc_conn->c_connid, bound );
 605
 606         if ( bound == 0 ) {
 607                 meta_back_release_conn( op, mc );
 608
 609                 if ( sendok & LDAP_BACK_SENDERR ) {
 610                         if ( rs->sr_err == LDAP_SUCCESS ) {
 611                                 rs->sr_err = LDAP_BUSY;
 612                         }
 613                         send_ldap_result( op, rs );
 614                 }
 615         }
 616
 617         return( bound > 0 );
 618 }
 619
 620 /*
 621  * meta_back_rebind
 622  *
 623  * This is a callback used for chasing referrals using the same
 624  * credentials as the original user on this session.
 625  */
 626 static int
 627 meta_back_rebind(
 628         LDAP                    *ld,
 629         LDAP_CONST char         *url,
 630         ber_tag_t               request,
 631         ber_int_t               msgid,
 632         void                    *params )
 633 {
 634         metasingleconn_t        *msc = ( metasingleconn_t * )params;
 635
 636         return ldap_sasl_bind_s( ld, msc->msc_bound_ndn.bv_val,
 637                         LDAP_SASL_SIMPLE, &msc->msc_cred,
 638                         NULL, NULL, NULL );
 639 }
 640
 641 /*
 642  * FIXME: error return must be handled in a cleaner way ...
 643  */
 644 int
 645 meta_back_op_result(
 646         metaconn_t      *mc,
 647         Operation       *op,
 648         SlapReply       *rs,
 649         int             candidate )
 650 {
 651         metainfo_t              *mi = ( metainfo_t * )op->o_bd->be_private;
 652
 653         int                     i,
 654                                 rerr = LDAP_SUCCESS;
 655         char                    *rmsg = NULL;
 656         char                    *rmatch = NULL;
 657         int                     free_rmsg = 0,
 658                                 free_rmatch = 0;
 659
 660         if ( candidate != META_TARGET_NONE ) {
 661                 metasingleconn_t        *msc = &mc->mc_conns[ candidate ];
 662
 663                 rs->sr_err = LDAP_SUCCESS;
 664
 665                 ldap_get_option( msc->msc_ld, LDAP_OPT_ERROR_NUMBER, &rs->sr_err );
 666                 if ( rs->sr_err != LDAP_SUCCESS ) {
 667                         /*
 668                          * better check the type of error. In some cases
 669                          * (search ?) it might be better to return a
 670                          * success if at least one of the targets gave
 671                          * positive result ...
 672                          */
 673                         ldap_get_option( msc->msc_ld,
 674                                         LDAP_OPT_ERROR_STRING, &rmsg );
 675                         ldap_get_option( msc->msc_ld,
 676                                         LDAP_OPT_MATCHED_DN, &rmatch );
 677                         rerr = rs->sr_err = slap_map_api2result( rs );
 678
 679                         if ( rmsg ) {
 680                                 free_rmsg = 1;
 681                         }
 682                         if ( rmatch ) {
 683                                 free_rmatch = 1;
 684                         }
 685
 686                         Debug(LDAP_DEBUG_ANY,
 687                                         "==> meta_back_op_result: target"
 688                                         " <%d> sending msg \"%s\""
 689                                         " (matched \"%s\")\n",
 690                                         candidate, ( rmsg ? rmsg : "" ),
 691                                         ( rmatch ? rmatch : "" ) );
 692                 }
 693
 694         } else {
 695                 for ( i = 0; i < mi->mi_ntargets; i++ ) {
 696                         metasingleconn_t        *msc = &mc->mc_conns[ i ];
 697                         char                    *msg = NULL;
 698                         char                    *match = NULL;
 699
 700                         rs->sr_err = LDAP_SUCCESS;
 701
 702                         ldap_get_option( msc->msc_ld, LDAP_OPT_ERROR_NUMBER, &rs->sr_err );
 703                         if ( rs->sr_err != LDAP_SUCCESS ) {
 704                                 /*
 705                                  * better check the type of error. In some cases
 706                                  * (search ?) it might be better to return a
 707                                  * success if at least one of the targets gave
 708                                  * positive result ...
 709                                  */
 710                                 ldap_get_option( msc->msc_ld,
 711                                                 LDAP_OPT_ERROR_STRING, &msg );
 712                                 ldap_get_option( msc->msc_ld,
 713                                                 LDAP_OPT_MATCHED_DN, &match );
 714                                 rs->sr_err = slap_map_api2result( rs );
 715
 716                                 Debug(LDAP_DEBUG_ANY,
 717                                                 "==> meta_back_op_result: target"
 718                                                 " <%d> sending msg \"%s\""
 719                                                 " (matched \"%s\")\n",
 720                                                 i, ( msg ? msg : "" ),
 721                                                 ( match ? match : "" ) );
 722
 723                                 /*
 724                                  * FIXME: need to rewrite "match" (need rwinfo)
 725                                  */
 726                                 switch ( rs->sr_err ) {
 727                                 default:
 728                                         rerr = rs->sr_err;
 729                                         if ( rmsg ) {
 730                                                 ber_memfree( rmsg );
 731                                         }
 732                                         rmsg = msg;
 733                                         free_rmsg = 1;
 734                                         msg = NULL;
 735                                         if ( rmatch ) {
 736                                                 ber_memfree( rmatch );
 737                                         }
 738                                         rmatch = match;
 739                                         free_rmatch = 1;
 740                                         match = NULL;
 741                                         break;
 742                                 }
 743
 744                                 /* better test the pointers before freeing? */
 745                                 if ( match ) {
 746                                         free( match );
 747                                 }
 748                                 if ( msg ) {
 749                                         free( msg );
 750                                 }
 751                         }
 752                 }
 753         }
 754
 755         rs->sr_err = rerr;
 756         rs->sr_text = rmsg;
 757         rs->sr_matched = rmatch;
 758         send_ldap_result( op, rs );
 759         if ( free_rmsg ) {
 760                 ber_memfree( rmsg );
 761         }
 762         if ( free_rmatch ) {
 763                 ber_memfree( rmatch );
 764         }
 765         rs->sr_text = NULL;
 766         rs->sr_matched = NULL;
 767
 768         return ( ( rerr == LDAP_SUCCESS ) ? 0 : -1 );
 769 }
 770