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, "%s meta_back_single_bind: ldap_result=%d nretries=%d\n",
 227                                 op->o_log_prefix, 0, nretries );
 228
 229                         if ( nretries != META_RETRY_NEVER ) {
 230                                 ldap_pvt_thread_yield();
 231                                 if ( nretries > 0 ) {
 232                                         nretries--;
 233                                 }
 234                                 goto retry;
 235                         }
 236                         rs->sr_err = LDAP_BUSY;
 237                         if ( rebinding ) {
 238                                 ldap_abandon_ext( msc->msc_ld, msgid, NULL, NULL );
 239                                 break;
 240                         }
 241
 242                         /* FIXME: some times the request times out
 243                          * while the other party is not willing to
 244                          * send a response any more.  Give it a second
 245                          * chance with a freshly bound connection */
 246                         rebinding = 1;
 247                         nretries = mt->mt_nretries;
 248                         /* fallthru */
 249
 250                 case -1:
 251                         ldap_get_option( msc->msc_ld, LDAP_OPT_ERROR_NUMBER,
 252                                         &rs->sr_err );
 253
 254                         if ( rebinding ) {
 255                                 ldap_abandon_ext( msc->msc_ld, msgid, NULL, NULL );
 256                         }
 257
 258                         Debug( LDAP_DEBUG_ANY, "### %s meta_back_single_bind: err=%d nretries=%d\n",
 259                                 op->o_log_prefix, rs->sr_err, nretries );
 260
 261                         rc = slap_map_api2result( rs );
 262                         if ( rs->sr_err == LDAP_UNAVAILABLE && nretries != META_RETRY_NEVER ) {
 263 retry_lock:;
 264                                 switch ( ldap_pvt_thread_mutex_trylock( &mi->mi_conn_mutex ) ) {
 265                                 case LDAP_PVT_THREAD_EBUSY:
 266                                 default:
 267                                         ldap_pvt_thread_yield();
 268                                         goto retry_lock;
 269
 270                                 case 0:
 271                                         break;
 272                                 }
 273
 274                                 if ( mc->mc_refcnt == 1 ) {
 275                                         ldap_unbind_ext_s( msc->msc_ld, NULL, NULL );
 276                                         msc->msc_ld = NULL;
 277                                         msc->msc_bound = 0;
 278
 279                                         /* mc here must be the regular mc,
 280                                          * reset and ready for init */
 281                                         rc = meta_back_init_one_conn( op, rs,
 282                                                 mt, msc, LDAP_BACK_DONTSEND );
 283
 284                                 } else {
 285                                         /* can't do anything about it */
 286                                         rc = 0;
 287                                 }
 288
 289                                 ldap_pvt_thread_mutex_unlock( &mi->mi_conn_mutex );
 290
 291                                 if ( rc ) {
 292                                         if ( nretries > 0 ) {
 293                                                 nretries--;
 294                                         }
 295                                         ldap_pvt_thread_yield();
 296                                         goto rebind;
 297                                 }
 298                         }
 299                         break;
 300
 301                 default:
 302                         rc = ldap_parse_result( msc->msc_ld, res, &rs->sr_err,
 303                                         NULL, NULL, NULL, NULL, 1 );
 304                         if ( rc != LDAP_SUCCESS ) {
 305                                 rs->sr_err = rc;
 306                         }
 307                         break;
 308                 }
 309         }
 310
 311         if ( rs->sr_err != LDAP_SUCCESS ) {
 312                 rs->sr_err = slap_map_api2result( rs );
 313                 goto return_results;
 314         }
 315
 316         ber_bvreplace( &msc->msc_bound_ndn, &op->o_req_dn );
 317         msc->msc_bound = META_BOUND;
 318         mc->mc_auth_target = candidate;
 319
 320         if ( LDAP_BACK_SAVECRED( mi ) ) {
 321                 ber_bvreplace( &msc->msc_cred, &op->orb_cred );
 322                 ldap_set_rebind_proc( msc->msc_ld, meta_back_rebind, msc );
 323         }
 324
 325         if ( mi->mi_cache.ttl != META_DNCACHE_DISABLED
 326                         && op->o_req_ndn.bv_len != 0 )
 327         {
 328                 ( void )meta_dncache_update_entry( &mi->mi_cache,
 329                                 &op->o_req_ndn, candidate );
 330         }
 331
 332 return_results:;
 333         if ( mdn.bv_val != op->o_req_dn.bv_val ) {
 334                 free( mdn.bv_val );
 335         }
 336
 337         return rs->sr_err;
 338 }
 339
 340 /*
 341  * meta_back_single_dobind
 342  */
 343 int
 344 meta_back_single_dobind(
 345         Operation               *op,
 346         SlapReply               *rs,
 347         metaconn_t              *mc,
 348         int                     candidate,
 349         ldap_back_send_t        sendok,
 350         int                     nretries,
 351         int                     dolock )
 352 {
 353         metainfo_t              *mi = ( metainfo_t * )op->o_bd->be_private;
 354         metatarget_t            *mt = &mi->mi_targets[ candidate ];
 355         metasingleconn_t        *msc = &mc->mc_conns[ candidate ];
 356         int                     rc;
 357         struct berval           cred = BER_BVC( "" );
 358         int                     msgid,
 359                                 rebinding = 0,
 360                                 save_nretries = nretries;
 361
 362         /*
 363          * Otherwise an anonymous bind is performed
 364          * (note: if the target was already bound, the anonymous
 365          * bind clears the previous bind).
 366          */
 367         if ( !BER_BVISNULL( &msc->msc_bound_ndn ) ) {
 368                 ber_memfree( msc->msc_bound_ndn.bv_val );
 369                 BER_BVZERO( &msc->msc_bound_ndn );
 370         }
 371
 372         if ( !BER_BVISNULL( &msc->msc_cred ) ) {
 373                 /* destroy sensitive data */
 374                 memset( msc->msc_cred.bv_val, 0, msc->msc_cred.bv_len );
 375                 ber_memfree( msc->msc_cred.bv_val );
 376                 BER_BVZERO( &msc->msc_cred );
 377         }
 378
 379         /* FIXME: should we check if at least some of the op->o_ctrls
 380          * can/should be passed? */
 381 rebind:;
 382         rc = ldap_sasl_bind( msc->msc_ld, "", LDAP_SASL_SIMPLE, &cred,
 383                         NULL, NULL, &msgid );
 384         if ( rc == LDAP_SUCCESS ) {
 385                 LDAPMessage     *res;
 386                 struct timeval  tv;
 387
 388                 /*
 389                  * handle response!!!
 390                  */
 391 retry:;
 392                 tv.tv_sec = 0;
 393                 tv.tv_usec = META_BIND_TIMEOUT;
 394                 switch ( ldap_result( msc->msc_ld, msgid, 0, &tv, &res ) ) {
 395                 case 0:
 396                         Debug( LDAP_DEBUG_ANY, "%s meta_back_single_dobind: ldap_result=%d nretries=%d\n",
 397                                 op->o_log_prefix, 0, nretries );
 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, "### %s meta_back_single_dobind: err=%d nretries=%d\n",
 430                                         op->o_log_prefix, rs->sr_err, nretries );
 431
 432                         rc = slap_map_api2result( rs );
 433                         if ( rc == LDAP_UNAVAILABLE && nretries != META_RETRY_NEVER ) {
 434                                 if ( dolock ) {
 435 retry_lock:;
 436                                         switch ( ldap_pvt_thread_mutex_trylock( &mi->mi_conn_mutex ) ) {
 437                                         case LDAP_PVT_THREAD_EBUSY:
 438                                         default:
 439                                                 ldap_pvt_thread_yield();
 440                                                 goto retry_lock;
 441
 442                                         case 0:
 443                                                 break;
 444                                         }
 445                                 }
 446
 447                                 if ( mc->mc_refcnt == 1 ) {
 448                                         ldap_unbind_ext_s( msc->msc_ld, NULL, NULL );
 449                                         msc->msc_ld = NULL;
 450                                         msc->msc_bound = 0;
 451
 452                                         /* mc here must be the regular mc,
 453                                          * reset and ready for init */
 454                                         rc = meta_back_init_one_conn( op, rs,
 455                                                 mt, msc, LDAP_BACK_DONTSEND );
 456
 457
 458                                 } else {
 459                                         /* can't do anything about it */
 460                                         rc = LDAP_UNAVAILABLE;
 461                                 }
 462
 463                                 if ( dolock ) {
 464                                         ldap_pvt_thread_mutex_unlock( &mi->mi_conn_mutex );
 465                                 }
 466
 467                                 if ( rc == LDAP_SUCCESS ) {
 468                                         ldap_pvt_thread_yield();
 469                                         if ( nretries > 0 ) {
 470                                                 nretries--;
 471                                         }
 472                                         goto rebind;
 473                                 }
 474                         }
 475                         break;
 476
 477                 default:
 478                         rc = ldap_parse_result( msc->msc_ld, res, &rs->sr_err,
 479                                         NULL, NULL, NULL, NULL, 1 );
 480                         if ( rc == LDAP_SUCCESS ) {
 481                                 rc = slap_map_api2result( rs );
 482                         }
 483                         break;
 484                 }
 485
 486         } else {
 487                 rc = slap_map_api2result( rs );
 488         }
 489
 490         rs->sr_err = rc;
 491         if ( rc != LDAP_SUCCESS && ( sendok & LDAP_BACK_SENDERR ) ) {
 492                 send_ldap_result( op, rs );
 493         }
 494
 495         return rc;
 496 }
 497
 498 /*
 499  * meta_back_dobind
 500  */
 501 int
 502 meta_back_dobind(
 503         Operation               *op,
 504         SlapReply               *rs,
 505         metaconn_t              *mc,
 506         ldap_back_send_t        sendok )
 507 {
 508         metainfo_t              *mi = ( metainfo_t * )op->o_bd->be_private;
 509
 510         int                     bound = 0, i;
 511
 512         SlapReply               *candidates = meta_back_candidates_get( op );
 513
 514         ldap_pvt_thread_mutex_lock( &mc->mc_mutex );
 515
 516         Debug( LDAP_DEBUG_TRACE,
 517                 "%s meta_back_dobind: conn=%ld\n",
 518                 op->o_log_prefix, mc->mc_conn->c_connid, 0 );
 519
 520         /*
 521          * all the targets are bound as pseudoroot
 522          */
 523         if ( mc->mc_auth_target == META_BOUND_ALL ) {
 524                 bound = 1;
 525                 goto done;
 526         }
 527
 528         for ( i = 0; i < mi->mi_ntargets; i++ ) {
 529                 metatarget_t            *mt = &mi->mi_targets[ i ];
 530                 metasingleconn_t        *msc = &mc->mc_conns[ i ];
 531                 int                     rc;
 532
 533                 /*
 534                  * Not a candidate
 535                  */
 536                 if ( candidates[ i ].sr_tag != META_CANDIDATE ) {
 537                         continue;
 538                 }
 539
 540                 assert( msc->msc_ld != NULL );
 541
 542                 /*
 543                  * If the target is already bound it is skipped
 544                  */
 545                 if ( msc->msc_bound == META_BOUND && mc->mc_auth_target == i ) {
 546                         ++bound;
 547
 548                         Debug( LDAP_DEBUG_TRACE, "%s meta_back_dobind[%d]: "
 549                                         "authcTarget\n",
 550                                         op->o_log_prefix, i, 0 );
 551                         continue;
 552                 }
 553
 554                 rc = meta_back_single_dobind( op, rs, mc, i,
 555                                 LDAP_BACK_DONTSEND, mt->mt_nretries, 1 );
 556                 if ( rc != LDAP_SUCCESS ) {
 557                         rs->sr_err = slap_map_api2result( rs );
 558
 559                         Debug( LDAP_DEBUG_ANY, "%s meta_back_dobind[%d]: "
 560                                         "(anonymous) err=%d\n",
 561                                         op->o_log_prefix, i, rc );
 562
 563                         /*
 564                          * null cred bind should always succeed
 565                          * as anonymous, so a failure means
 566                          * the target is no longer candidate possibly
 567                          * due to technical reasons (remote host down?)
 568                          * so better clear the handle
 569                          */
 570                         candidates[ i ].sr_tag = META_NOT_CANDIDATE;
 571                         continue;
 572                 } /* else */
 573
 574                 Debug( LDAP_DEBUG_TRACE, "%s meta_back_dobind[%d]: "
 575                                 "(anonymous)\n",
 576                                 op->o_log_prefix, i, 0 );
 577
 578                 msc->msc_bound = META_ANONYMOUS;
 579                 ++bound;
 580         }
 581
 582 done:;
 583         ldap_pvt_thread_mutex_unlock( &mc->mc_mutex );
 584
 585         Debug( LDAP_DEBUG_TRACE,
 586                 "%s meta_back_dobind: conn=%ld bound=%d\n",
 587                 op->o_log_prefix, mc->mc_conn->c_connid, bound );
 588
 589         if ( bound == 0 ) {
 590                 meta_back_release_conn( op, mc );
 591
 592                 if ( sendok & LDAP_BACK_SENDERR ) {
 593                         if ( rs->sr_err == LDAP_SUCCESS ) {
 594                                 rs->sr_err = LDAP_BUSY;
 595                         }
 596                         send_ldap_result( op, rs );
 597                 }
 598         }
 599
 600         return( bound > 0 );
 601 }
 602
 603 /*
 604  * meta_back_rebind
 605  *
 606  * This is a callback used for chasing referrals using the same
 607  * credentials as the original user on this session.
 608  */
 609 static int
 610 meta_back_rebind(
 611         LDAP                    *ld,
 612         LDAP_CONST char         *url,
 613         ber_tag_t               request,
 614         ber_int_t               msgid,
 615         void                    *params )
 616 {
 617         metasingleconn_t        *msc = ( metasingleconn_t * )params;
 618
 619         return ldap_sasl_bind_s( ld, msc->msc_bound_ndn.bv_val,
 620                         LDAP_SASL_SIMPLE, &msc->msc_cred,
 621                         NULL, NULL, NULL );
 622 }
 623
 624 /*
 625  * FIXME: error return must be handled in a cleaner way ...
 626  */
 627 int
 628 meta_back_op_result(
 629         metaconn_t      *mc,
 630         Operation       *op,
 631         SlapReply       *rs,
 632         int             candidate )
 633 {
 634         metainfo_t              *mi = ( metainfo_t * )op->o_bd->be_private;
 635
 636         int                     i,
 637                                 rerr = LDAP_SUCCESS;
 638         char                    *rmsg = NULL;
 639         char                    *rmatch = NULL;
 640         int                     free_rmsg = 0,
 641                                 free_rmatch = 0;
 642
 643         if ( candidate != META_TARGET_NONE ) {
 644                 metasingleconn_t        *msc = &mc->mc_conns[ candidate ];
 645
 646                 rs->sr_err = LDAP_SUCCESS;
 647
 648                 ldap_get_option( msc->msc_ld, LDAP_OPT_ERROR_NUMBER, &rs->sr_err );
 649                 if ( rs->sr_err != LDAP_SUCCESS ) {
 650                         /*
 651                          * better check the type of error. In some cases
 652                          * (search ?) it might be better to return a
 653                          * success if at least one of the targets gave
 654                          * positive result ...
 655                          */
 656                         ldap_get_option( msc->msc_ld,
 657                                         LDAP_OPT_ERROR_STRING, &rmsg );
 658                         ldap_get_option( msc->msc_ld,
 659                                         LDAP_OPT_MATCHED_DN, &rmatch );
 660                         rerr = rs->sr_err = slap_map_api2result( rs );
 661
 662                         if ( rmsg ) {
 663                                 free_rmsg = 1;
 664                         }
 665                         if ( rmatch ) {
 666                                 free_rmatch = 1;
 667                         }
 668
 669                         Debug(LDAP_DEBUG_ANY,
 670                                         "==> meta_back_op_result: target"
 671                                         " <%d> sending msg \"%s\""
 672                                         " (matched \"%s\")\n",
 673                                         candidate, ( rmsg ? rmsg : "" ),
 674                                         ( rmatch ? rmatch : "" ) );
 675                 }
 676
 677         } else {
 678                 for ( i = 0; i < mi->mi_ntargets; i++ ) {
 679                         metasingleconn_t        *msc = &mc->mc_conns[ i ];
 680                         char                    *msg = NULL;
 681                         char                    *match = NULL;
 682
 683                         rs->sr_err = LDAP_SUCCESS;
 684
 685                         ldap_get_option( msc->msc_ld, LDAP_OPT_ERROR_NUMBER, &rs->sr_err );
 686                         if ( rs->sr_err != LDAP_SUCCESS ) {
 687                                 /*
 688                                  * better check the type of error. In some cases
 689                                  * (search ?) it might be better to return a
 690                                  * success if at least one of the targets gave
 691                                  * positive result ...
 692                                  */
 693                                 ldap_get_option( msc->msc_ld,
 694                                                 LDAP_OPT_ERROR_STRING, &msg );
 695                                 ldap_get_option( msc->msc_ld,
 696                                                 LDAP_OPT_MATCHED_DN, &match );
 697                                 rs->sr_err = slap_map_api2result( rs );
 698
 699                                 Debug(LDAP_DEBUG_ANY,
 700                                                 "==> meta_back_op_result: target"
 701                                                 " <%d> sending msg \"%s\""
 702                                                 " (matched \"%s\")\n",
 703                                                 i, ( msg ? msg : "" ),
 704                                                 ( match ? match : "" ) );
 705
 706                                 /*
 707                                  * FIXME: need to rewrite "match" (need rwinfo)
 708                                  */
 709                                 switch ( rs->sr_err ) {
 710                                 default:
 711                                         rerr = rs->sr_err;
 712                                         if ( rmsg ) {
 713                                                 ber_memfree( rmsg );
 714                                         }
 715                                         rmsg = msg;
 716                                         free_rmsg = 1;
 717                                         msg = NULL;
 718                                         if ( rmatch ) {
 719                                                 ber_memfree( rmatch );
 720                                         }
 721                                         rmatch = match;
 722                                         free_rmatch = 1;
 723                                         match = NULL;
 724                                         break;
 725                                 }
 726
 727                                 /* better test the pointers before freeing? */
 728                                 if ( match ) {
 729                                         free( match );
 730                                 }
 731                                 if ( msg ) {
 732                                         free( msg );
 733                                 }
 734                         }
 735                 }
 736         }
 737
 738         rs->sr_err = rerr;
 739         rs->sr_text = rmsg;
 740         rs->sr_matched = rmatch;
 741         send_ldap_result( op, rs );
 742         if ( free_rmsg ) {
 743                 ber_memfree( rmsg );
 744         }
 745         if ( free_rmatch ) {
 746                 ber_memfree( rmatch );
 747         }
 748         rs->sr_text = NULL;
 749         rs->sr_matched = NULL;
 750
 751         return ( ( rerr == LDAP_SUCCESS ) ? 0 : -1 );
 752 }
 753