git.sur5r.net Git - openldap/blob - libraries/libldap/request.c

   1 /* $OpenLDAP$ */
   2 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
   3  *
   4  * Copyright 1998-2005 The OpenLDAP Foundation.
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted only as authorized by the OpenLDAP
   9  * Public License.
  10  *
  11  * A copy of this license is available in the file LICENSE in the
  12  * top-level directory of the distribution or, alternatively, at
  13  * <http://www.OpenLDAP.org/license.html>.
  14  */
  15 /* Portions Copyright (c) 1995 Regents of the University of Michigan.
  16  * All rights reserved.
  17  */
  18 /* This notice applies to changes, created by or for Novell, Inc.,
  19  * to preexisting works for which notices appear elsewhere in this file.
  20  *
  21  * Copyright (C) 1999, 2000 Novell, Inc. All Rights Reserved.
  22  *
  23  * THIS WORK IS SUBJECT TO U.S. AND INTERNATIONAL COPYRIGHT LAWS AND TREATIES.
  24  * USE, MODIFICATION, AND REDISTRIBUTION OF THIS WORK IS SUBJECT TO VERSION
  25  * 2.0.1 OF THE OPENLDAP PUBLIC LICENSE, A COPY OF WHICH IS AVAILABLE AT
  26  * HTTP://WWW.OPENLDAP.ORG/LICENSE.HTML OR IN THE FILE "LICENSE" IN THE
  27  * TOP-LEVEL DIRECTORY OF THE DISTRIBUTION. ANY USE OR EXPLOITATION OF THIS
  28  * WORK OTHER THAN AS AUTHORIZED IN VERSION 2.0.1 OF THE OPENLDAP PUBLIC
  29  * LICENSE, OR OTHER PRIOR WRITTEN CONSENT FROM NOVELL, COULD SUBJECT THE
  30  * PERPETRATOR TO CRIMINAL AND CIVIL LIABILITY.
  31  *---
  32  * Modification to OpenLDAP source by Novell, Inc.
  33  * April 2000 sfs  Added code to chase V3 referrals
  34  *  request.c - sending of ldap requests; handling of referrals
  35  *---
  36  * Note: A verbatim copy of version 2.0.1 of the OpenLDAP Public License
  37  * can be found in the file "build/LICENSE-2.0.1" in this distribution
  38  * of OpenLDAP Software.
  39  */
  40
  41 #include "portable.h"
  42
  43 #include <stdio.h>
  44
  45 #include <ac/stdlib.h>
  46
  47 #include <ac/errno.h>
  48 #include <ac/socket.h>
  49 #include <ac/string.h>
  50 #include <ac/time.h>
  51 #include <ac/unistd.h>
  52
  53 #include "ldap-int.h"
  54 #include "lber.h"
  55
  56 static LDAPConn *find_connection LDAP_P(( LDAP *ld, LDAPURLDesc *srv, int any ));
  57 static void use_connection LDAP_P(( LDAP *ld, LDAPConn *lc ));
  58
  59 static BerElement *
  60 re_encode_request( LDAP *ld,
  61         BerElement *origber,
  62         ber_int_t msgid,
  63         int sref,
  64         LDAPURLDesc *srv,
  65         int *type );
  66
  67 BerElement *
  68 ldap_alloc_ber_with_options( LDAP *ld )
  69 {
  70         BerElement      *ber;
  71
  72     if (( ber = ber_alloc_t( ld->ld_lberoptions )) == NULL ) {
  73                 ld->ld_errno = LDAP_NO_MEMORY;
  74         }
  75
  76         return( ber );
  77 }
  78
  79
  80 void
  81 ldap_set_ber_options( LDAP *ld, BerElement *ber )
  82 {
  83         ber->ber_options = ld->ld_lberoptions;
  84 }
  85
  86
  87 ber_int_t
  88 ldap_send_initial_request(
  89         LDAP *ld,
  90         ber_tag_t msgtype,
  91         const char *dn,
  92         BerElement *ber,
  93         ber_int_t msgid)
  94 {
  95         LDAPURLDesc     *servers;
  96         int rc;
  97
  98         Debug( LDAP_DEBUG_TRACE, "ldap_send_initial_request\n", 0, 0, 0 );
  99
 100         if ( ber_sockbuf_ctrl( ld->ld_sb, LBER_SB_OPT_GET_FD, NULL ) == -1 ) {
 101                 /* not connected yet */
 102                 int rc = ldap_open_defconn( ld );
 103
 104                 if( rc < 0 ) {
 105                         ber_free( ber, 1 );
 106                         return( -1 );
 107                 }
 108
 109                 Debug( LDAP_DEBUG_TRACE,
 110                         "ldap_open_defconn: successful\n",
 111                         0, 0, 0 );
 112         }
 113
 114         {
 115                 /*
 116                  * use of DNS is turned off or this is an X.500 DN...
 117                  * use our default connection
 118                  */
 119                 servers = NULL;
 120         }
 121
 122 #ifdef LDAP_CONNECTIONLESS
 123         if (LDAP_IS_UDP(ld)) {
 124                 if (msgtype == LDAP_REQ_BIND) {
 125                         if (ld->ld_options.ldo_cldapdn)
 126                                 ldap_memfree(ld->ld_options.ldo_cldapdn);
 127                         ld->ld_options.ldo_cldapdn = ldap_strdup(dn);
 128                         return 0;
 129                 }
 130                 if (msgtype != LDAP_REQ_ABANDON && msgtype != LDAP_REQ_SEARCH)
 131                         return LDAP_PARAM_ERROR;
 132         }
 133 #endif
 134 #ifdef LDAP_R_COMPILE
 135         ldap_pvt_thread_mutex_lock( &ld->ld_req_mutex );
 136 #endif
 137         rc = ldap_send_server_request( ld, ber, msgid, NULL,
 138                                                                         servers, NULL, NULL );
 139 #ifdef LDAP_R_COMPILE
 140         ldap_pvt_thread_mutex_unlock( &ld->ld_req_mutex );
 141 #endif
 142         if (servers)
 143                 ldap_free_urllist(servers);
 144         return(rc);
 145 }
 146
 147
 148 int
 149 ldap_int_flush_request(
 150         LDAP *ld,
 151         LDAPRequest *lr )
 152 {
 153         LDAPConn *lc = lr->lr_conn;
 154
 155         if ( ber_flush( lc->lconn_sb, lr->lr_ber, 0 ) != 0 ) {
 156                 if ( errno == EAGAIN ) {
 157                         /* need to continue write later */
 158                         lr->lr_status = LDAP_REQST_WRITING;
 159                         ldap_mark_select_write( ld, lc->lconn_sb );
 160                         ld->ld_errno = LDAP_BUSY;
 161                         return -2;
 162                 } else {
 163                         ld->ld_errno = LDAP_SERVER_DOWN;
 164                         ldap_free_request( ld, lr );
 165                         ldap_free_connection( ld, lc, 0, 0 );
 166                         return( -1 );
 167                 }
 168         } else {
 169                 if ( lr->lr_parent == NULL ) {
 170                         lr->lr_ber->ber_end = lr->lr_ber->ber_ptr;
 171                         lr->lr_ber->ber_ptr = lr->lr_ber->ber_buf;
 172                 }
 173                 lr->lr_status = LDAP_REQST_INPROGRESS;
 174
 175                 /* sent -- waiting for a response */
 176                 ldap_mark_select_read( ld, lc->lconn_sb );
 177         }
 178         return 0;
 179 }
 180
 181 int
 182 ldap_send_server_request(
 183         LDAP *ld,
 184         BerElement *ber,
 185         ber_int_t msgid,
 186         LDAPRequest *parentreq,
 187         LDAPURLDesc *srvlist,
 188         LDAPConn *lc,
 189         LDAPreqinfo *bind )
 190 {
 191         LDAPRequest     *lr;
 192         int incparent, rc;
 193
 194         Debug( LDAP_DEBUG_TRACE, "ldap_send_server_request\n", 0, 0, 0 );
 195
 196         incparent = 0;
 197         ld->ld_errno = LDAP_SUCCESS;    /* optimistic */
 198
 199         if ( lc == NULL ) {
 200                 if ( srvlist == NULL ) {
 201                         lc = ld->ld_defconn;
 202                 } else {
 203                         if (( lc = find_connection( ld, srvlist, 1 )) ==
 204                             NULL ) {
 205                                 if ( (bind != NULL) && (parentreq != NULL) ) {
 206                                         /* Remember the bind in the parent */
 207                                         incparent = 1;
 208                                         ++parentreq->lr_outrefcnt;
 209                                 }
 210                                 lc = ldap_new_connection( ld, srvlist, 0, 1, bind );
 211                         }
 212                 }
 213         }
 214
 215         if ( lc == NULL || lc->lconn_status != LDAP_CONNST_CONNECTED ) {
 216                 ber_free( ber, 1 );
 217                 if ( ld->ld_errno == LDAP_SUCCESS ) {
 218                         ld->ld_errno = LDAP_SERVER_DOWN;
 219                 }
 220                 if ( incparent ) {
 221                         /* Forget about the bind */
 222                         --parentreq->lr_outrefcnt;
 223                 }
 224                 return( -1 );
 225         }
 226
 227         use_connection( ld, lc );
 228
 229         /* If we still have an incomplete write, try to finish it before
 230          * dealing with the new request. If we don't finish here, return
 231          * LDAP_BUSY and let the caller retry later. We only allow a single
 232          * request to be in WRITING state.
 233          */
 234         rc = 0;
 235         if ( ld->ld_requests &&
 236                 ld->ld_requests->lr_status == LDAP_REQST_WRITING &&
 237                 ldap_int_flush_request( ld, ld->ld_requests ) < 0 ) {
 238                 rc = -1;
 239         }
 240         if ( rc ) return rc;
 241
 242         if (( lr = (LDAPRequest *)LDAP_CALLOC( 1, sizeof( LDAPRequest ))) ==
 243             NULL ) {
 244                 ld->ld_errno = LDAP_NO_MEMORY;
 245                 ldap_free_connection( ld, lc, 0, 0 );
 246                 ber_free( ber, 1 );
 247                 if ( incparent ) {
 248                         /* Forget about the bind */
 249                         --parentreq->lr_outrefcnt;
 250                 }
 251                 return( -1 );
 252         }
 253         lr->lr_msgid = msgid;
 254         lr->lr_status = LDAP_REQST_INPROGRESS;
 255         lr->lr_res_errno = LDAP_SUCCESS;        /* optimistic */
 256         lr->lr_ber = ber;
 257         lr->lr_conn = lc;
 258         if ( parentreq != NULL ) {      /* sub-request */
 259                 if ( !incparent ) {
 260                         /* Increment if we didn't do it before the bind */
 261                         ++parentreq->lr_outrefcnt;
 262                 }
 263                 lr->lr_origid = parentreq->lr_origid;
 264                 lr->lr_parentcnt = parentreq->lr_parentcnt + 1;
 265                 lr->lr_parent = parentreq;
 266                 lr->lr_refnext = parentreq->lr_child;
 267                 parentreq->lr_child = lr;
 268         } else {                        /* original request */
 269                 lr->lr_origid = lr->lr_msgid;
 270         }
 271
 272         if (( lr->lr_next = ld->ld_requests ) != NULL ) {
 273                 lr->lr_next->lr_prev = lr;
 274         }
 275         ld->ld_requests = lr;
 276         lr->lr_prev = NULL;
 277
 278         ld->ld_errno = LDAP_SUCCESS;
 279         if ( ldap_int_flush_request( ld, lr ) == -1 ) {
 280                 msgid = -1;
 281         }
 282
 283         return( msgid );
 284 }
 285
 286 LDAPConn *
 287 ldap_new_connection( LDAP *ld, LDAPURLDesc *srvlist, int use_ldsb,
 288         int connect, LDAPreqinfo *bind )
 289 {
 290         LDAPConn        *lc;
 291         LDAPURLDesc     *srv;
 292         Sockbuf         *sb = NULL;
 293
 294         Debug( LDAP_DEBUG_TRACE, "ldap_new_connection\n", 0, 0, 0 );
 295         /*
 296          * make a new LDAP server connection
 297          * XXX open connection synchronously for now
 298          */
 299         if (( lc = (LDAPConn *)LDAP_CALLOC( 1, sizeof( LDAPConn ))) == NULL ||
 300             ( !use_ldsb && ( (sb = ber_sockbuf_alloc()) == NULL ))) {
 301                 if ( lc != NULL ) {
 302                         LDAP_FREE( (char *)lc );
 303                 }
 304                 ld->ld_errno = LDAP_NO_MEMORY;
 305                 return( NULL );
 306         }
 307
 308         lc->lconn_sb = ( use_ldsb ) ? ld->ld_sb : sb;
 309
 310         if ( connect ) {
 311                 for ( srv = srvlist; srv != NULL; srv = srv->lud_next ) {
 312                         if ( ldap_int_open_connection( ld, lc, srv, 0 ) != -1 ) {
 313                                 break;
 314                         }
 315                 }
 316
 317                 if ( srv == NULL ) {
 318                         if ( !use_ldsb ) {
 319                                 ber_sockbuf_free( lc->lconn_sb );
 320                         }
 321                     LDAP_FREE( (char *)lc );
 322                     ld->ld_errno = LDAP_SERVER_DOWN;
 323                     return( NULL );
 324                 }
 325
 326                 lc->lconn_server = ldap_url_dup(srv);
 327         }
 328
 329         lc->lconn_status = LDAP_CONNST_CONNECTED;
 330         lc->lconn_next = ld->ld_conns;
 331         ld->ld_conns = lc;
 332
 333         /*
 334          * XXX for now, we always do a synchronous bind.  This will have
 335          * to change in the long run...
 336          */
 337         if ( bind != NULL) {
 338                 int             err = 0;
 339                 LDAPConn        *savedefconn;
 340
 341                 /* Set flag to prevent additional referrals from being processed on this
 342                  * connection until the bind has completed
 343                  */
 344                 lc->lconn_rebind_inprogress = 1;
 345                 /* V3 rebind function */
 346                 if ( ld->ld_rebind_proc != NULL) {
 347                         LDAPURLDesc     *srvfunc;
 348                         if( ( srvfunc = ldap_url_dup( srvlist)) == NULL) {
 349                                 ld->ld_errno = LDAP_NO_MEMORY;
 350                                 err = -1;
 351                         } else {
 352                                 savedefconn = ld->ld_defconn;
 353                                 ++lc->lconn_refcnt;     /* avoid premature free */
 354                                 ld->ld_defconn = lc;
 355
 356                                 Debug( LDAP_DEBUG_TRACE, "Call application rebind_proc\n", 0, 0, 0);
 357 #ifdef LDAP_R_COMPILE
 358                 ldap_pvt_thread_mutex_unlock( &ld->ld_req_mutex );
 359                 ldap_pvt_thread_mutex_unlock( &ld->ld_res_mutex );
 360 #endif
 361                                 err = (*ld->ld_rebind_proc)( ld,
 362                                         bind->ri_url, bind->ri_request, bind->ri_msgid,
 363                                         ld->ld_rebind_params );
 364 #ifdef LDAP_R_COMPILE
 365                 ldap_pvt_thread_mutex_lock( &ld->ld_res_mutex );
 366                 ldap_pvt_thread_mutex_lock( &ld->ld_req_mutex );
 367 #endif
 368
 369                                 ld->ld_defconn = savedefconn;
 370                                 --lc->lconn_refcnt;
 371
 372                                 if( err != 0) {
 373                                 err = -1;
 374                                         ldap_free_connection( ld, lc, 1, 0 );
 375                                         lc = NULL;
 376                         }
 377                                 ldap_free_urldesc( srvfunc);
 378                 }
 379                 } else {
 380                         savedefconn = ld->ld_defconn;
 381                         ++lc->lconn_refcnt;     /* avoid premature free */
 382                         ld->ld_defconn = lc;
 383
 384                         Debug( LDAP_DEBUG_TRACE, "anonymous rebind via ldap_bind_s\n", 0, 0, 0);
 385 #ifdef LDAP_R_COMPILE
 386                         ldap_pvt_thread_mutex_unlock( &ld->ld_req_mutex );
 387                         ldap_pvt_thread_mutex_unlock( &ld->ld_res_mutex );
 388 #endif
 389                         if ( ldap_bind_s( ld, "", "", LDAP_AUTH_SIMPLE ) != LDAP_SUCCESS ) {
 390                                 err = -1;
 391                         }
 392 #ifdef LDAP_R_COMPILE
 393                         ldap_pvt_thread_mutex_lock( &ld->ld_res_mutex );
 394                         ldap_pvt_thread_mutex_lock( &ld->ld_req_mutex );
 395 #endif
 396                         ld->ld_defconn = savedefconn;
 397                         --lc->lconn_refcnt;
 398
 399                 if ( err != 0 ) {
 400                         ldap_free_connection( ld, lc, 1, 0 );
 401                         lc = NULL;
 402                 }
 403         }
 404                 if( lc != NULL)
 405                         lc->lconn_rebind_inprogress = 0;
 406         }
 407
 408         return( lc );
 409 }
 410
 411
 412 static LDAPConn *
 413 find_connection( LDAP *ld, LDAPURLDesc *srv, int any )
 414 /*
 415  * return an existing connection (if any) to the server srv
 416  * if "any" is non-zero, check for any server in the "srv" chain
 417  */
 418 {
 419         LDAPConn        *lc;
 420         LDAPURLDesc     *lcu, *lsu;
 421         int lcu_port, lsu_port;
 422
 423         for ( lc = ld->ld_conns; lc != NULL; lc = lc->lconn_next ) {
 424                 lcu = lc->lconn_server;
 425                 lcu_port = ldap_pvt_url_scheme_port( lcu->lud_scheme,
 426                         lcu->lud_port );
 427
 428                 for ( lsu = srv; lsu != NULL; lsu = lsu->lud_next ) {
 429                         lsu_port = ldap_pvt_url_scheme_port( lsu->lud_scheme,
 430                                 lsu->lud_port );
 431
 432                         if ( strcmp( lcu->lud_scheme, lsu->lud_scheme ) == 0
 433                                 && lcu->lud_host != NULL && *lcu->lud_host != '\0'
 434                             && lsu->lud_host != NULL && *lsu->lud_host != '\0'
 435                                 && strcasecmp( lsu->lud_host, lcu->lud_host ) == 0
 436                             && lsu_port == lcu_port )
 437                         {
 438                                 return lc;
 439                         }
 440
 441                         if ( !any ) break;
 442                 }
 443         }
 444
 445         return NULL;
 446 }
 447
 448
 449
 450 static void
 451 use_connection( LDAP *ld, LDAPConn *lc )
 452 {
 453         ++lc->lconn_refcnt;
 454         lc->lconn_lastused = time( NULL );
 455 }
 456
 457
 458 void
 459 ldap_free_connection( LDAP *ld, LDAPConn *lc, int force, int unbind )
 460 {
 461         LDAPConn        *tmplc, *prevlc;
 462
 463         Debug( LDAP_DEBUG_TRACE, "ldap_free_connection\n", 0, 0, 0 );
 464
 465         if ( force || --lc->lconn_refcnt <= 0 ) {
 466                 if ( lc->lconn_status == LDAP_CONNST_CONNECTED ) {
 467                         ldap_mark_select_clear( ld, lc->lconn_sb );
 468                         if ( unbind ) {
 469                                 ldap_send_unbind( ld, lc->lconn_sb, NULL, NULL );
 470                         }
 471                 }
 472
 473                 if( lc->lconn_ber != NULL ) {
 474                         ber_free( lc->lconn_ber, 1 );
 475                 }
 476
 477                 ldap_int_sasl_close( ld, lc );
 478
 479                 prevlc = NULL;
 480                 for ( tmplc = ld->ld_conns; tmplc != NULL;
 481                     tmplc = tmplc->lconn_next ) {
 482                         if ( tmplc == lc ) {
 483                                 if ( prevlc == NULL ) {
 484                                     ld->ld_conns = tmplc->lconn_next;
 485                                 } else {
 486                                     prevlc->lconn_next = tmplc->lconn_next;
 487                                 }
 488                                 break;
 489                         }
 490                         prevlc = tmplc;
 491                 }
 492                 ldap_free_urllist( lc->lconn_server );
 493 #ifdef LDAP_API_FEATURE_X_OPENLDAP_V2_KBIND
 494                 if ( lc->lconn_krbinstance != NULL ) {
 495                         LDAP_FREE( lc->lconn_krbinstance );
 496                 }
 497 #endif
 498                 if ( lc->lconn_sb != ld->ld_sb ) {
 499                         ber_sockbuf_free( lc->lconn_sb );
 500                 }
 501                 if( lc->lconn_rebind_queue != NULL) {
 502                         int i;
 503                         for( i = 0; lc->lconn_rebind_queue[i] != NULL; i++) {
 504                                 LDAP_VFREE(lc->lconn_rebind_queue[i]);
 505                         }
 506                         LDAP_FREE( lc->lconn_rebind_queue);
 507                 }
 508                 LDAP_FREE( lc );
 509                 Debug( LDAP_DEBUG_TRACE, "ldap_free_connection: actually freed\n",
 510                     0, 0, 0 );
 511         } else {
 512                 lc->lconn_lastused = time( NULL );
 513                 Debug( LDAP_DEBUG_TRACE, "ldap_free_connection: refcnt %d\n",
 514                     lc->lconn_refcnt, 0, 0 );
 515         }
 516 }
 517
 518
 519 #ifdef LDAP_DEBUG
 520 void
 521 ldap_dump_connection( LDAP *ld, LDAPConn *lconns, int all )
 522 {
 523         LDAPConn        *lc;
 524         char            timebuf[32];
 525
 526         fprintf( stderr, "** Connection%s:\n", all ? "s" : "" );
 527         for ( lc = lconns; lc != NULL; lc = lc->lconn_next ) {
 528                 if ( lc->lconn_server != NULL ) {
 529                         fprintf( stderr, "* host: %s  port: %d%s\n",
 530                             ( lc->lconn_server->lud_host == NULL ) ? "(null)"
 531                             : lc->lconn_server->lud_host,
 532                             lc->lconn_server->lud_port, ( lc->lconn_sb ==
 533                             ld->ld_sb ) ? "  (default)" : "" );
 534                 }
 535                 fprintf( stderr, "  refcnt: %d  status: %s\n", lc->lconn_refcnt,
 536                     ( lc->lconn_status == LDAP_CONNST_NEEDSOCKET ) ?
 537                     "NeedSocket" : ( lc->lconn_status ==
 538                     LDAP_CONNST_CONNECTING ) ? "Connecting" : "Connected" );
 539                 fprintf( stderr, "  last used: %s",
 540                     ldap_pvt_ctime( &lc->lconn_lastused, timebuf ));
 541                 if( lc->lconn_rebind_inprogress ) {
 542                         fprintf( stderr, "  rebind in progress\n");
 543                         if( lc->lconn_rebind_queue != NULL) {
 544                                 int i = 0;
 545                                 for( ;lc->lconn_rebind_queue[i] != NULL; i++) {
 546                                         int j = 0;
 547                                         for( ;lc->lconn_rebind_queue[i][j] != 0; j++) {
 548                                                 fprintf( stderr, "    queue %d entry %d - %s\n",
 549                                                         i, j, lc->lconn_rebind_queue[i][j]);
 550                                         }
 551                                 }
 552                         } else {
 553                                 fprintf( stderr, "    queue is empty\n");
 554                         }
 555                 }
 556                 fprintf(stderr, "\n");
 557                 if ( !all ) {
 558                         break;
 559                 }
 560         }
 561 }
 562
 563
 564 void
 565 ldap_dump_requests_and_responses( LDAP *ld )
 566 {
 567         LDAPRequest     *lr;
 568         LDAPMessage     *lm, *l;
 569
 570 #ifdef LDAP_R_COMPILE
 571         ldap_pvt_thread_mutex_lock( &ld->ld_req_mutex );
 572 #endif
 573         fprintf( stderr, "** Outstanding Requests:\n" );
 574         if (( lr = ld->ld_requests ) == NULL ) {
 575                 fprintf( stderr, "   Empty\n" );
 576         }
 577         for ( ; lr != NULL; lr = lr->lr_next ) {
 578             fprintf( stderr, " * msgid %d,  origid %d, status %s\n",
 579                 lr->lr_msgid, lr->lr_origid,
 580                 ( lr->lr_status == LDAP_REQST_INPROGRESS ) ? "InProgress" :
 581                 ( lr->lr_status == LDAP_REQST_CHASINGREFS ) ? "ChasingRefs" :
 582                 ( lr->lr_status == LDAP_REQST_NOTCONNECTED ) ? "NotConnected" :
 583                 ( lr->lr_status == LDAP_REQST_WRITING) ? "Writing" :
 584                 ( lr->lr_status == LDAP_REQST_COMPLETED ? "Request Completed" : "Invalid Status"));
 585             fprintf( stderr, "   outstanding referrals %d, parent count %d\n",
 586                     lr->lr_outrefcnt, lr->lr_parentcnt );
 587         }
 588 #ifdef LDAP_R_COMPILE
 589         ldap_pvt_thread_mutex_unlock( &ld->ld_req_mutex );
 590 #endif
 591         fprintf( stderr, "** Response Queue:\n" );
 592         if (( lm = ld->ld_responses ) == NULL ) {
 593                 fprintf( stderr, "   Empty\n" );
 594         }
 595         for ( ; lm != NULL; lm = lm->lm_next ) {
 596                 fprintf( stderr, " * msgid %d,  type %lu\n",
 597                     lm->lm_msgid, (unsigned long) lm->lm_msgtype );
 598                 if (( l = lm->lm_chain ) != NULL ) {
 599                         fprintf( stderr, "   chained responses:\n" );
 600                         for ( ; l != NULL; l = l->lm_chain ) {
 601                                 fprintf( stderr,
 602                                     "  * msgid %d,  type %lu\n",
 603                                     l->lm_msgid,
 604                                     (unsigned long) l->lm_msgtype );
 605                         }
 606                 }
 607         }
 608 }
 609 #endif /* LDAP_DEBUG */
 610
 611 void
 612 ldap_free_request_int( LDAP *ld, LDAPRequest *lr )
 613 {
 614         if ( lr->lr_prev == NULL ) {
 615                 ld->ld_requests = lr->lr_next;
 616         } else {
 617                 lr->lr_prev->lr_next = lr->lr_next;
 618         }
 619
 620         if ( lr->lr_next != NULL ) {
 621                 lr->lr_next->lr_prev = lr->lr_prev;
 622         }
 623
 624         if ( lr->lr_ber != NULL ) {
 625                 ber_free( lr->lr_ber, 1 );
 626         }
 627
 628         if ( lr->lr_res_error != NULL ) {
 629                 LDAP_FREE( lr->lr_res_error );
 630         }
 631
 632         if ( lr->lr_res_matched != NULL ) {
 633                 LDAP_FREE( lr->lr_res_matched );
 634         }
 635
 636         LDAP_FREE( lr );
 637 }
 638
 639 void
 640 ldap_free_request( LDAP *ld, LDAPRequest *lr )
 641 {
 642         LDAPRequest     **ttmplr;
 643
 644         Debug( LDAP_DEBUG_TRACE, "ldap_free_request (origid %d, msgid %d)\n",
 645                 lr->lr_origid, lr->lr_msgid, 0 );
 646
 647         /* free all referrals (child requests) */
 648         while ( lr->lr_child )
 649                 ldap_free_request( ld, lr->lr_child );
 650
 651         if ( lr->lr_parent != NULL ) {
 652                 --lr->lr_parent->lr_outrefcnt;
 653                 for ( ttmplr = &lr->lr_parent->lr_child; *ttmplr && *ttmplr != lr; ttmplr = &(*ttmplr)->lr_refnext );
 654                 if ( *ttmplr == lr )
 655                         *ttmplr = lr->lr_refnext;
 656         }
 657         ldap_free_request_int( ld, lr );
 658 }
 659
 660
 661 /*
 662  * Chase v3 referrals
 663  *
 664  * Parameters:
 665  *  (IN) ld = LDAP connection handle
 666  *  (IN) lr = LDAP Request structure
 667  *  (IN) refs = array of pointers to referral strings that we will chase
 668  *              The array will be free'd by this function when no longer needed
 669  *  (IN) sref != 0 if following search reference
 670  *  (OUT) errstrp = Place to return a string of referrals which could not be followed
 671  *  (OUT) hadrefp = 1 if sucessfully followed referral
 672  *
 673  * Return value - number of referrals followed
 674  */
 675 int
 676 ldap_chase_v3referrals( LDAP *ld, LDAPRequest *lr, char **refs, int sref, char **errstrp, int *hadrefp )
 677 {
 678         char            *unfollowed;
 679         int                      unfollowedcnt = 0;
 680         LDAPRequest     *origreq;
 681         LDAPURLDesc     *srv = NULL;
 682         BerElement      *ber;
 683         char            **refarray = NULL;
 684         LDAPConn        *lc;
 685         int                      rc, count, i, j, id;
 686         LDAPreqinfo  rinfo;
 687
 688         ld->ld_errno = LDAP_SUCCESS;    /* optimistic */
 689         *hadrefp = 0;
 690
 691         Debug( LDAP_DEBUG_TRACE, "ldap_chase_v3referrals\n", 0, 0, 0 );
 692
 693         unfollowed = NULL;
 694         rc = count = 0;
 695
 696         /* If no referrals in array, return */
 697         if ( (refs == NULL) || ( (refs)[0] == NULL) ) {
 698                 rc = 0;
 699                 goto done;
 700         }
 701
 702         /* Check for hop limit exceeded */
 703         if ( lr->lr_parentcnt >= ld->ld_refhoplimit ) {
 704                 Debug( LDAP_DEBUG_ANY,
 705                     "more than %d referral hops (dropping)\n", ld->ld_refhoplimit, 0, 0 );
 706                 ld->ld_errno = LDAP_REFERRAL_LIMIT_EXCEEDED;
 707             rc = -1;
 708                 goto done;
 709         }
 710
 711         /* find original request */
 712         for ( origreq = lr;
 713                 origreq->lr_parent != NULL;
 714                 origreq = origreq->lr_parent )
 715         {
 716                 /* empty */ ;
 717         }
 718
 719         refarray = refs;
 720         refs = NULL;
 721         /* parse out & follow referrals */
 722         for( i=0; refarray[i] != NULL; i++) {
 723                 /* Parse the referral URL */
 724                 if (( rc = ldap_url_parse_ext( refarray[i], &srv)) != LDAP_SUCCESS) {
 725                         ld->ld_errno = rc;
 726                         rc = -1;
 727                         goto done;
 728                 }
 729
 730                 if( srv->lud_crit_exts ) {
 731                         /* we do not support any extensions */
 732                         ld->ld_errno = LDAP_NOT_SUPPORTED;
 733                         rc = -1;
 734                         goto done;
 735                 }
 736
 737                 /* treat ldap://hostpart and ldap://hostpart/ the same */
 738                 if ( srv->lud_dn && srv->lud_dn[0] == '\0' ) {
 739                         LDAP_FREE( srv->lud_dn );
 740                         srv->lud_dn = NULL;
 741                 }
 742
 743                 /* check connection for re-bind in progress */
 744                 if (( lc = find_connection( ld, srv, 1 )) != NULL ) {
 745                         if( lc->lconn_rebind_inprogress) {
 746                                 /* We are already chasing a referral or search reference and a
 747                                  * bind on that connection is in progress.  We must queue
 748                                  * referrals on that connection, so we don't get a request
 749                                  * going out before the bind operation completes. This happens
 750                                  * if two search references come in one behind the other
 751                                  * for the same server with different contexts.
 752                                  */
 753                                 Debug( LDAP_DEBUG_TRACE,
 754                                         "ldap_chase_v3referrals: queue referral \"%s\"\n",
 755                                         refarray[i], 0, 0);
 756                                 if( lc->lconn_rebind_queue == NULL ) {
 757                                         /* Create a referral list */
 758                                         lc->lconn_rebind_queue =
 759                                                 (char ***) LDAP_MALLOC( sizeof(void *) * 2);
 760
 761                                         if( lc->lconn_rebind_queue == NULL) {
 762                                                 ld->ld_errno = LDAP_NO_MEMORY;
 763                                                 rc = -1;
 764                                                 goto done;
 765                                         }
 766
 767                                         lc->lconn_rebind_queue[0] = refarray;
 768                                         lc->lconn_rebind_queue[1] = NULL;
 769                                         refarray = NULL;
 770
 771                                 } else {
 772                                         /* Count how many referral arrays we already have */
 773                                         for( j = 0; lc->lconn_rebind_queue[j] != NULL; j++) {
 774                                                 /* empty */;
 775                                         }
 776
 777                                         /* Add the new referral to the list */
 778                                         lc->lconn_rebind_queue = (char ***) LDAP_REALLOC(
 779                                                 lc->lconn_rebind_queue, sizeof(void *) * (j + 2));
 780
 781                                         if( lc->lconn_rebind_queue == NULL ) {
 782                                                 ld->ld_errno = LDAP_NO_MEMORY;
 783                                                 rc = -1;
 784                                                 goto done;
 785                                         }
 786                                         lc->lconn_rebind_queue[j] = refarray;
 787                                         lc->lconn_rebind_queue[j+1] = NULL;
 788                                         refarray = NULL;
 789                                 }
 790
 791                                 /* We have queued the referral/reference, now just return */
 792                                 rc = 0;
 793                                 *hadrefp = 1;
 794                                 count = 1; /* Pretend we already followed referral */
 795                                 goto done;
 796                         }
 797                 }
 798                 /* Re-encode the request with the new starting point of the search.
 799                  * Note: In the future we also need to replace the filter if one
 800                  * was provided with the search reference
 801                  */
 802
 803                 /* For references we don't want old dn if new dn empty */
 804                 if ( sref && srv->lud_dn == NULL ) {
 805                         srv->lud_dn = LDAP_STRDUP( "" );
 806                 }
 807
 808                 LDAP_NEXT_MSGID( ld, id );
 809                 ber = re_encode_request( ld, origreq->lr_ber, id,
 810                         sref, srv, &rinfo.ri_request );
 811
 812                 if( ber == NULL ) {
 813                         ld->ld_errno = LDAP_ENCODING_ERROR;
 814                         rc = -1;
 815                         goto done;
 816                 }
 817
 818                 Debug( LDAP_DEBUG_TRACE,
 819                         "ldap_chase_v3referral: msgid %d, url \"%s\"\n",
 820                         lr->lr_msgid, refarray[i], 0);
 821
 822                 /* Send the new request to the server - may require a bind */
 823                 rinfo.ri_msgid = origreq->lr_origid;
 824                 rinfo.ri_url = refarray[i];
 825 #ifdef LDAP_R_COMPILE
 826                 ldap_pvt_thread_mutex_lock( &ld->ld_req_mutex );
 827 #endif
 828                 rc = ldap_send_server_request( ld, ber, id,
 829                         origreq, srv, NULL, &rinfo );
 830 #ifdef LDAP_R_COMPILE
 831                 ldap_pvt_thread_mutex_unlock( &ld->ld_req_mutex );
 832 #endif
 833                 if ( rc < 0 ) {
 834                         /* Failure, try next referral in the list */
 835                         Debug( LDAP_DEBUG_ANY, "Unable to chase referral \"%s\" (%s)\n",
 836                                 refarray[i], ldap_err2string( ld->ld_errno ), 0);
 837                         unfollowedcnt += ldap_append_referral( ld, &unfollowed, refarray[i]);
 838                         ldap_free_urllist(srv);
 839                         srv = NULL;
 840                 } else {
 841                         /* Success, no need to try this referral list further */
 842                         rc = 0;
 843                         ++count;
 844                         *hadrefp = 1;
 845
 846                         /* check if there is a queue of referrals that came in during bind */
 847                         if( lc == NULL) {
 848                                 if (( lc = find_connection( ld, srv, 1 )) == NULL ) {
 849                                         ld->ld_errno = LDAP_OPERATIONS_ERROR;
 850                                         rc = -1;
 851                                         goto done;
 852                                 }
 853                         }
 854
 855                         if( lc->lconn_rebind_queue != NULL) {
 856                                 /* Release resources of previous list */
 857                                 LDAP_VFREE(refarray);
 858                                 refarray = NULL;
 859                                 ldap_free_urllist(srv);
 860                                 srv = NULL;
 861
 862                                 /* Pull entries off end of queue so list always null terminated */
 863                                 for( j = 0; lc->lconn_rebind_queue[j] != NULL; j++) {
 864                                         ;
 865                                 }
 866                                 refarray = lc->lconn_rebind_queue[j-1];
 867                                 lc->lconn_rebind_queue[j-1] = NULL;
 868                                 /* we pulled off last entry from queue, free queue */
 869                                 if ( j == 1 ) {
 870                                         LDAP_FREE( lc->lconn_rebind_queue);
 871                                         lc->lconn_rebind_queue = NULL;
 872                                 }
 873                                 /* restart the loop the with new referral list */
 874                                 i = -1;
 875                                 continue;
 876                         }
 877                         break; /* referral followed, break out of for loop */
 878                 }
 879         } /* end for loop */
 880 done:
 881         LDAP_VFREE(refarray);
 882         ldap_free_urllist(srv);
 883         LDAP_FREE( *errstrp );
 884
 885         if( rc == 0) {
 886                 *errstrp = NULL;
 887                 LDAP_FREE( unfollowed );
 888                 return count;
 889         } else {
 890                 ld->ld_errno = LDAP_REFERRAL;
 891                 *errstrp = unfollowed;
 892                 return rc;
 893         }
 894 }
 895
 896 /*
 897  * XXX merging of errors in this routine needs to be improved
 898  */
 899 int
 900 ldap_chase_referrals( LDAP *ld,
 901         LDAPRequest *lr,
 902         char **errstrp,
 903         int sref,
 904         int *hadrefp )
 905 {
 906         int             rc, count, id;
 907         unsigned        len;
 908         char            *p, *ref, *unfollowed;
 909         LDAPRequest     *origreq;
 910         LDAPURLDesc     *srv;
 911         BerElement      *ber;
 912         LDAPreqinfo  rinfo;
 913
 914         Debug( LDAP_DEBUG_TRACE, "ldap_chase_referrals\n", 0, 0, 0 );
 915
 916         ld->ld_errno = LDAP_SUCCESS;    /* optimistic */
 917         *hadrefp = 0;
 918
 919         if ( *errstrp == NULL ) {
 920                 return( 0 );
 921         }
 922
 923         len = strlen( *errstrp );
 924         for ( p = *errstrp; len >= LDAP_REF_STR_LEN; ++p, --len ) {
 925                 if ( strncasecmp( p, LDAP_REF_STR, LDAP_REF_STR_LEN ) == 0 ) {
 926                         *p = '\0';
 927                         p += LDAP_REF_STR_LEN;
 928                         break;
 929                 }
 930         }
 931
 932         if ( len < LDAP_REF_STR_LEN ) {
 933                 return( 0 );
 934         }
 935
 936         if ( lr->lr_parentcnt >= ld->ld_refhoplimit ) {
 937                 Debug( LDAP_DEBUG_ANY,
 938                     "more than %d referral hops (dropping)\n",
 939                     ld->ld_refhoplimit, 0, 0 );
 940                     /* XXX report as error in ld->ld_errno? */
 941                     return( 0 );
 942         }
 943
 944         /* find original request */
 945         for ( origreq = lr; origreq->lr_parent != NULL;
 946              origreq = origreq->lr_parent ) {
 947                 /* empty */;
 948         }
 949
 950         unfollowed = NULL;
 951         rc = count = 0;
 952
 953         /* parse out & follow referrals */
 954         for ( ref = p; rc == 0 && ref != NULL; ref = p ) {
 955                 if (( p = strchr( ref, '\n' )) != NULL ) {
 956                         *p++ = '\0';
 957                 } else {
 958                         p = NULL;
 959                 }
 960
 961                 rc = ldap_url_parse_ext( ref, &srv );
 962
 963                 if ( rc != LDAP_URL_SUCCESS ) {
 964                         Debug( LDAP_DEBUG_TRACE,
 965                             "ignoring unknown referral <%s>\n", ref, 0, 0 );
 966                         rc = ldap_append_referral( ld, &unfollowed, ref );
 967                         *hadrefp = 1;
 968                         continue;
 969                 }
 970
 971                 if( srv->lud_dn != NULL && srv->lud_dn == '\0' ) {
 972                         LDAP_FREE( srv->lud_dn );
 973                         srv->lud_dn = NULL;
 974                 }
 975
 976                 Debug( LDAP_DEBUG_TRACE,
 977                     "chasing LDAP referral: <%s>\n", ref, 0, 0 );
 978
 979                 *hadrefp = 1;
 980
 981                 LDAP_NEXT_MSGID( ld, id );
 982                 ber = re_encode_request( ld, origreq->lr_ber,
 983                     id, sref, srv, &rinfo.ri_request );
 984
 985                 if( ber == NULL ) {
 986                         return -1 ;
 987                 }
 988
 989                 /* copy the complete referral for rebind process */
 990                 rinfo.ri_url = LDAP_STRDUP( ref );
 991
 992                 rinfo.ri_msgid = origreq->lr_origid;
 993
 994 #ifdef LDAP_R_COMPILE
 995         ldap_pvt_thread_mutex_lock( &ld->ld_req_mutex );
 996 #endif
 997                 rc = ldap_send_server_request( ld, ber, id,
 998                     lr, srv, NULL, &rinfo );
 999 #ifdef LDAP_R_COMPILE
1000         ldap_pvt_thread_mutex_unlock( &ld->ld_req_mutex );
1001 #endif
1002
1003                 LDAP_FREE( rinfo.ri_url );
1004
1005                 if( rc >= 0 ) {
1006                         ++count;
1007                 } else {
1008                         Debug( LDAP_DEBUG_ANY,
1009                             "Unable to chase referral (%s)\n",
1010                             ldap_err2string( ld->ld_errno ), 0, 0 );
1011                         rc = ldap_append_referral( ld, &unfollowed, ref );
1012                 }
1013
1014                 ldap_free_urllist(srv);
1015         }
1016
1017         LDAP_FREE( *errstrp );
1018         *errstrp = unfollowed;
1019
1020         return(( rc == 0 ) ? count : rc );
1021 }
1022
1023
1024 int
1025 ldap_append_referral( LDAP *ld, char **referralsp, char *s )
1026 {
1027         int     first;
1028
1029         if ( *referralsp == NULL ) {
1030                 first = 1;
1031                 *referralsp = (char *)LDAP_MALLOC( strlen( s ) + LDAP_REF_STR_LEN
1032                     + 1 );
1033         } else {
1034                 first = 0;
1035                 *referralsp = (char *)LDAP_REALLOC( *referralsp,
1036                     strlen( *referralsp ) + strlen( s ) + 2 );
1037         }
1038
1039         if ( *referralsp == NULL ) {
1040                 ld->ld_errno = LDAP_NO_MEMORY;
1041                 return( -1 );
1042         }
1043
1044         if ( first ) {
1045                 strcpy( *referralsp, LDAP_REF_STR );
1046         } else {
1047                 strcat( *referralsp, "\n" );
1048         }
1049         strcat( *referralsp, s );
1050
1051         return( 0 );
1052 }
1053
1054
1055
1056 static BerElement *
1057 re_encode_request( LDAP *ld,
1058         BerElement *origber,
1059         ber_int_t msgid,
1060         int sref,
1061         LDAPURLDesc *srv,
1062         int *type )
1063 {
1064         /*
1065          * XXX this routine knows way too much about how the lber library works!
1066          */
1067         ber_int_t       along;
1068         ber_tag_t       tag;
1069         ber_tag_t       rtag;
1070         ber_int_t       ver;
1071         ber_int_t       scope;
1072         int             rc;
1073         BerElement      tmpber, *ber;
1074         char            *orig_dn;
1075         char            *dn;
1076
1077         Debug( LDAP_DEBUG_TRACE,
1078             "re_encode_request: new msgid %ld, new dn <%s>\n",
1079             (long) msgid,
1080                 ( srv == NULL || srv->lud_dn == NULL) ? "NONE" : srv->lud_dn, 0 );
1081
1082         tmpber = *origber;
1083
1084         /*
1085          * all LDAP requests are sequences that start with a message id.
1086          * For all except delete, this is followed by a sequence that is
1087          * tagged with the operation code.  For delete, the provided DN
1088          * is not wrapped by a sequence.
1089          */
1090         rtag = ber_scanf( &tmpber, "{it", /*}*/ &along, &tag );
1091
1092         if ( rtag == LBER_ERROR ) {
1093                 ld->ld_errno = LDAP_DECODING_ERROR;
1094                 return( NULL );
1095         }
1096
1097         assert( tag != 0);
1098         if ( tag == LDAP_REQ_BIND ) {
1099                 /* bind requests have a version number before the DN & other stuff */
1100                 rtag = ber_scanf( &tmpber, "{ia" /*}*/, &ver, &orig_dn );
1101
1102         } else if ( tag == LDAP_REQ_DELETE ) {
1103                 /* delete requests don't have a DN wrapping sequence */
1104                 rtag = ber_scanf( &tmpber, "a", &orig_dn );
1105
1106         } else if ( tag == LDAP_REQ_SEARCH ) {
1107                 /* search requests need to be re-scope-ed */
1108                 rtag = ber_scanf( &tmpber, "{ae" /*"}"*/, &orig_dn, &scope );
1109
1110                 if( srv->lud_scope != LDAP_SCOPE_DEFAULT ) {
1111                         /* use the scope provided in reference */
1112                         scope = srv->lud_scope;
1113
1114                 } else if ( sref ) {
1115                         /* use scope implied by previous operation
1116                          *   base -> base
1117                          *   one -> base
1118                          *   subtree -> subtree
1119                          *   subordinate -> subtree
1120                          */
1121                         switch( scope ) {
1122                         default:
1123                         case LDAP_SCOPE_BASE:
1124                         case LDAP_SCOPE_ONELEVEL:
1125                                 scope = LDAP_SCOPE_BASE;
1126                                 break;
1127                         case LDAP_SCOPE_SUBTREE:
1128 #ifdef LDAP_FEATURE_SUBORDINATE_SCOPE
1129                         case LDAP_SCOPE_SUBORDINATE:
1130 #endif
1131                                 scope = LDAP_SCOPE_SUBTREE;
1132                                 break;
1133                         }
1134                 }
1135
1136         } else {
1137                 rtag = ber_scanf( &tmpber, "{a" /*}*/, &orig_dn );
1138         }
1139
1140         if( rtag == LBER_ERROR ) {
1141                 ld->ld_errno = LDAP_DECODING_ERROR;
1142                 return NULL;
1143         }
1144
1145         if (( ber = ldap_alloc_ber_with_options( ld )) == NULL ) {
1146                 return NULL;
1147         }
1148
1149         if ( srv->lud_dn == NULL ) {
1150                 dn = orig_dn;
1151         } else {
1152                 dn = srv->lud_dn;
1153         }
1154
1155         if ( tag == LDAP_REQ_BIND ) {
1156                 rc = ber_printf( ber, "{it{is" /*}}*/, msgid, tag, ver, dn );
1157         } else if ( tag == LDAP_REQ_DELETE ) {
1158                 rc = ber_printf( ber, "{itsN}", msgid, tag, dn );
1159         } else if ( tag == LDAP_REQ_SEARCH ) {
1160                 rc = ber_printf( ber, "{it{se" /*}}*/, msgid, tag, dn, scope );
1161         } else {
1162                 rc = ber_printf( ber, "{it{s" /*}}*/, msgid, tag, dn );
1163         }
1164
1165         LDAP_FREE( orig_dn );
1166
1167         if ( rc == -1 ) {
1168                 ld->ld_errno = LDAP_ENCODING_ERROR;
1169                 ber_free( ber, 1 );
1170                 return NULL;
1171         }
1172
1173         if ( tag != LDAP_REQ_DELETE && (
1174                 ber_write(ber, tmpber.ber_ptr, ( tmpber.ber_end - tmpber.ber_ptr ), 0)
1175                 != ( tmpber.ber_end - tmpber.ber_ptr ) ||
1176             ber_printf( ber, /*{{*/ "N}N}" ) == -1 ) )
1177         {
1178                 ld->ld_errno = LDAP_ENCODING_ERROR;
1179                 ber_free( ber, 1 );
1180                 return NULL;
1181         }
1182
1183 #ifdef LDAP_DEBUG
1184         if ( ldap_debug & LDAP_DEBUG_PACKETS ) {
1185                 Debug( LDAP_DEBUG_ANY, "re_encode_request new request is:\n",
1186                     0, 0, 0 );
1187                 ber_log_dump( LDAP_DEBUG_BER, ldap_debug, ber, 0 );
1188         }
1189 #endif /* LDAP_DEBUG */
1190
1191         *type = tag;    /* return request type */
1192         return ber;
1193 }
1194
1195
1196 LDAPRequest *
1197 ldap_find_request_by_msgid( LDAP *ld, ber_int_t msgid )
1198 {
1199         LDAPRequest     *lr;
1200
1201 #ifdef LDAP_R_COMPILE
1202         ldap_pvt_thread_mutex_lock( &ld->ld_req_mutex );
1203 #endif
1204         for ( lr = ld->ld_requests; lr != NULL; lr = lr->lr_next ) {
1205                 if( lr->lr_status == LDAP_REQST_COMPLETED ) {
1206                         continue;       /* Skip completed requests */
1207                 }
1208                 if ( msgid == lr->lr_msgid ) {
1209                         break;
1210                 }
1211         }
1212 #ifdef LDAP_R_COMPILE
1213         ldap_pvt_thread_mutex_unlock( &ld->ld_req_mutex );
1214 #endif
1215
1216         return( lr );
1217 }
1218
1219