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

   1 /* $OpenLDAP$ */
   2 /*
   3  * Copyright 1998-2002 The OpenLDAP Foundation, All Rights Reserved.
   4  * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
   5  */
   6 /*  Portions
   7  *  Copyright (c) 1995 Regents of the University of Michigan.
   8  *  All rights reserved.
   9  */
  10 /*---
  11  * This notice applies to changes, created by or for Novell, Inc.,
  12  * to preexisting works for which notices appear elsewhere in this file.
  13  *
  14  * Copyright (C) 1999, 2000 Novell, Inc. All Rights Reserved.
  15  *
  16  * THIS WORK IS SUBJECT TO U.S. AND INTERNATIONAL COPYRIGHT LAWS AND TREATIES.
  17  * USE, MODIFICATION, AND REDISTRIBUTION OF THIS WORK IS SUBJECT TO VERSION
  18  * 2.0.1 OF THE OPENLDAP PUBLIC LICENSE, A COPY OF WHICH IS AVAILABLE AT
  19  * HTTP://WWW.OPENLDAP.ORG/LICENSE.HTML OR IN THE FILE "LICENSE" IN THE
  20  * TOP-LEVEL DIRECTORY OF THE DISTRIBUTION. ANY USE OR EXPLOITATION OF THIS
  21  * WORK OTHER THAN AS AUTHORIZED IN VERSION 2.0.1 OF THE OPENLDAP PUBLIC
  22  * LICENSE, OR OTHER PRIOR WRITTEN CONSENT FROM NOVELL, COULD SUBJECT THE
  23  * PERPETRATOR TO CRIMINAL AND CIVIL LIABILITY.
  24  *---
  25  * Modification to OpenLDAP source by Novell, Inc.
  26  * April 2000 sfs  Added code to chase V3 referrals
  27  *  request.c - sending of ldap requests; handling of referrals
  28  */
  29
  30 #include "portable.h"
  31
  32 #include <stdio.h>
  33
  34 #include <ac/stdlib.h>
  35
  36 #include <ac/errno.h>
  37 #include <ac/socket.h>
  38 #include <ac/string.h>
  39 #include <ac/time.h>
  40 #include <ac/unistd.h>
  41
  42 #include "ldap-int.h"
  43 #include "lber.h"
  44
  45 static LDAPConn *find_connection LDAP_P(( LDAP *ld, LDAPURLDesc *srv, int any ));
  46 static void use_connection LDAP_P(( LDAP *ld, LDAPConn *lc ));
  47
  48 static BerElement *
  49 re_encode_request( LDAP *ld,
  50         BerElement *origber,
  51         ber_int_t msgid,
  52         int sref,
  53         LDAPURLDesc *srv,
  54         int *type );
  55
  56 BerElement *
  57 ldap_alloc_ber_with_options( LDAP *ld )
  58 {
  59         BerElement      *ber;
  60
  61     if (( ber = ber_alloc_t( ld->ld_lberoptions )) == NULL ) {
  62                 ld->ld_errno = LDAP_NO_MEMORY;
  63         }
  64
  65         return( ber );
  66 }
  67
  68
  69 void
  70 ldap_set_ber_options( LDAP *ld, BerElement *ber )
  71 {
  72         ber->ber_options = ld->ld_lberoptions;
  73 }
  74
  75
  76 ber_int_t
  77 ldap_send_initial_request(
  78         LDAP *ld,
  79         ber_tag_t msgtype,
  80         const char *dn,
  81         BerElement *ber )
  82 {
  83         LDAPURLDesc     *servers;
  84         int rc;
  85
  86 #ifdef NEW_LOGGING
  87         LDAP_LOG (( "request", LDAP_LEVEL_ENTRY, "ldap_send_initial_request\n" ));
  88 #else
  89         Debug( LDAP_DEBUG_TRACE, "ldap_send_initial_request\n", 0, 0, 0 );
  90 #endif
  91
  92         if ( ber_sockbuf_ctrl( ld->ld_sb, LBER_SB_OPT_GET_FD, NULL ) == -1 ) {
  93                 /* not connected yet */
  94                 int rc = ldap_open_defconn( ld );
  95
  96                 if( rc < 0 ) {
  97                         ber_free( ber, 1 );
  98                         return( -1 );
  99                 }
 100
 101 #ifdef NEW_LOGGING
 102                 LDAP_LOG (( "request", LDAP_LEVEL_DETAIL1,
 103                         "ldap_send_initial_request: ldap_open_defconn: successful\n" ));
 104 #else
 105                 Debug( LDAP_DEBUG_TRACE,
 106                         "ldap_open_defconn: successful\n",
 107                         0, 0, 0 );
 108 #endif
 109         }
 110
 111         {
 112                 /*
 113                  * use of DNS is turned off or this is an X.500 DN...
 114                  * use our default connection
 115                  */
 116                 servers = NULL;
 117         }
 118
 119 #ifdef LDAP_CONNECTIONLESS
 120         if (LDAP_IS_UDP(ld)) {
 121                 if (msgtype == LDAP_REQ_BIND) {
 122                         if (ld->ld_options.ldo_cldapdn)
 123                                 ldap_memfree(ld->ld_options.ldo_cldapdn);
 124                         ld->ld_options.ldo_cldapdn = ldap_strdup(dn);
 125                         return 0;
 126                 }
 127                 if (msgtype != LDAP_REQ_ABANDON && msgtype != LDAP_REQ_SEARCH)
 128                         return LDAP_PARAM_ERROR;
 129         }
 130 #endif
 131         rc = ldap_send_server_request( ld, ber, ld->ld_msgid, NULL,
 132                                                                         servers, NULL, NULL );
 133         if (servers)
 134                 ldap_free_urllist(servers);
 135         return(rc);
 136 }
 137
 138
 139
 140 int
 141 ldap_send_server_request(
 142         LDAP *ld,
 143         BerElement *ber,
 144         ber_int_t msgid,
 145         LDAPRequest *parentreq,
 146         LDAPURLDesc *srvlist,
 147         LDAPConn *lc,
 148         LDAPreqinfo *bind )
 149 {
 150         LDAPRequest     *lr;
 151         int incparent;
 152
 153 #ifdef NEW_LOGGING
 154         LDAP_LOG (( "request", LDAP_LEVEL_ENTRY, "ldap_send_server_request\n" ));
 155 #else
 156         Debug( LDAP_DEBUG_TRACE, "ldap_send_server_request\n", 0, 0, 0 );
 157 #endif
 158
 159         incparent = 0;
 160         ld->ld_errno = LDAP_SUCCESS;    /* optimistic */
 161
 162         if ( lc == NULL ) {
 163                 if ( srvlist == NULL ) {
 164                         lc = ld->ld_defconn;
 165                 } else {
 166                         if (( lc = find_connection( ld, srvlist, 1 )) ==
 167                             NULL ) {
 168                                 if ( (bind != NULL) && (parentreq != NULL) ) {
 169                                         /* Remember the bind in the parent */
 170                                         incparent = 1;
 171                                         ++parentreq->lr_outrefcnt;
 172                                 }
 173                                 lc = ldap_new_connection( ld, srvlist, 0, 1, bind );
 174                         }
 175                 }
 176         }
 177
 178         if ( lc == NULL || lc->lconn_status != LDAP_CONNST_CONNECTED ) {
 179                 ber_free( ber, 1 );
 180                 if ( ld->ld_errno == LDAP_SUCCESS ) {
 181                         ld->ld_errno = LDAP_SERVER_DOWN;
 182                 }
 183                 if ( incparent ) {
 184                         /* Forget about the bind */
 185                         --parentreq->lr_outrefcnt;
 186                 }
 187                 return( -1 );
 188         }
 189
 190         use_connection( ld, lc );
 191         if (( lr = (LDAPRequest *)LDAP_CALLOC( 1, sizeof( LDAPRequest ))) ==
 192             NULL ) {
 193                 ld->ld_errno = LDAP_NO_MEMORY;
 194                 ldap_free_connection( ld, lc, 0, 0 );
 195                 ber_free( ber, 1 );
 196                 if ( incparent ) {
 197                         /* Forget about the bind */
 198                         --parentreq->lr_outrefcnt;
 199                 }
 200                 return( -1 );
 201         }
 202         lr->lr_msgid = msgid;
 203         lr->lr_status = LDAP_REQST_INPROGRESS;
 204         lr->lr_res_errno = LDAP_SUCCESS;        /* optimistic */
 205         lr->lr_ber = ber;
 206         lr->lr_conn = lc;
 207         if ( parentreq != NULL ) {      /* sub-request */
 208                 if ( !incparent ) {
 209                         /* Increment if we didn't do it before the bind */
 210                         ++parentreq->lr_outrefcnt;
 211                 }
 212                 lr->lr_origid = parentreq->lr_origid;
 213                 lr->lr_parentcnt = parentreq->lr_parentcnt + 1;
 214                 lr->lr_parent = parentreq;
 215                 lr->lr_refnext = parentreq->lr_child;
 216                 parentreq->lr_child = lr;
 217         } else {                        /* original request */
 218                 lr->lr_origid = lr->lr_msgid;
 219         }
 220
 221         if (( lr->lr_next = ld->ld_requests ) != NULL ) {
 222                 lr->lr_next->lr_prev = lr;
 223         }
 224         ld->ld_requests = lr;
 225         lr->lr_prev = NULL;
 226
 227         if ( ber_flush( lc->lconn_sb, ber, 0 ) != 0 ) {
 228 #ifdef notyet
 229                 if ( errno == EWOULDBLOCK ) {
 230                         /* need to continue write later */
 231                         lr->lr_status = LDAP_REQST_WRITING;
 232                         ldap_mark_select_write( ld, lc->lconn_sb );
 233                 } else {
 234 #else /* notyet */
 235                         ld->ld_errno = LDAP_SERVER_DOWN;
 236                         ldap_free_request( ld, lr );
 237                         ldap_free_connection( ld, lc, 0, 0 );
 238                         return( -1 );
 239 #endif /* notyet */
 240 #ifdef notyet
 241                 }
 242 #endif /* notyet */
 243         } else {
 244                 if ( parentreq == NULL ) {
 245                         ber->ber_end = ber->ber_ptr;
 246                         ber->ber_ptr = ber->ber_buf;
 247                 }
 248
 249                 /* sent -- waiting for a response */
 250                 ldap_mark_select_read( ld, lc->lconn_sb );
 251         }
 252
 253         ld->ld_errno = LDAP_SUCCESS;
 254         return( msgid );
 255 }
 256
 257 LDAPConn *
 258 ldap_new_connection( LDAP *ld, LDAPURLDesc *srvlist, int use_ldsb,
 259         int connect, LDAPreqinfo *bind )
 260 {
 261         LDAPConn        *lc;
 262         LDAPURLDesc     *srv;
 263         Sockbuf         *sb = NULL;
 264
 265 #ifdef NEW_LOGGING
 266         LDAP_LOG (( "request", LDAP_LEVEL_ENTRY, "ldap_new_connection\n" ));
 267 #else
 268         Debug( LDAP_DEBUG_TRACE, "ldap_new_connection\n", 0, 0, 0 );
 269 #endif
 270         /*
 271          * make a new LDAP server connection
 272          * XXX open connection synchronously for now
 273          */
 274         if (( lc = (LDAPConn *)LDAP_CALLOC( 1, sizeof( LDAPConn ))) == NULL ||
 275             ( !use_ldsb && ( (sb = ber_sockbuf_alloc()) == NULL ))) {
 276                 if ( lc != NULL ) {
 277                         LDAP_FREE( (char *)lc );
 278                 }
 279                 ld->ld_errno = LDAP_NO_MEMORY;
 280                 return( NULL );
 281         }
 282
 283         lc->lconn_sb = ( use_ldsb ) ? ld->ld_sb : sb;
 284
 285         if ( connect ) {
 286                 for ( srv = srvlist; srv != NULL; srv = srv->lud_next ) {
 287                         if ( ldap_int_open_connection( ld, lc, srv, 0 ) != -1 ) {
 288                                 break;
 289                         }
 290                 }
 291
 292                 if ( srv == NULL ) {
 293                         if ( !use_ldsb ) {
 294                                 ber_sockbuf_free( lc->lconn_sb );
 295                         }
 296                     LDAP_FREE( (char *)lc );
 297                     ld->ld_errno = LDAP_SERVER_DOWN;
 298                     return( NULL );
 299                 }
 300
 301                 lc->lconn_server = ldap_url_dup(srv);
 302         }
 303
 304         lc->lconn_status = LDAP_CONNST_CONNECTED;
 305         lc->lconn_next = ld->ld_conns;
 306         ld->ld_conns = lc;
 307
 308         /*
 309          * XXX for now, we always do a synchronous bind.  This will have
 310          * to change in the long run...
 311          */
 312         if ( bind != NULL) {
 313                 int             err = 0;
 314                 LDAPConn        *savedefconn;
 315
 316                 /* Set flag to prevent additional referrals from being processed on this
 317                  * connection until the bind has completed
 318                  */
 319                 lc->lconn_rebind_inprogress = 1;
 320                 /* V3 rebind function */
 321                 if ( ld->ld_rebind_proc != NULL) {
 322                         LDAPURLDesc     *srvfunc;
 323                         if( ( srvfunc = ldap_url_dup( srvlist)) == NULL) {
 324                                 ld->ld_errno = LDAP_NO_MEMORY;
 325                                 err = -1;
 326                         } else {
 327                                 savedefconn = ld->ld_defconn;
 328                                 ++lc->lconn_refcnt;     /* avoid premature free */
 329                                 ld->ld_defconn = lc;
 330
 331 #ifdef NEW_LOGGING
 332                                 LDAP_LOG (( "request", LDAP_LEVEL_DETAIL1,
 333                                         "ldap_new_connection: Call application rebind_proc\n" ));
 334 #else
 335                                 Debug( LDAP_DEBUG_TRACE, "Call application rebind_proc\n", 0, 0, 0);
 336 #endif
 337                                 err = (*ld->ld_rebind_proc)( ld,
 338                                         bind->ri_url, bind->ri_request, bind->ri_msgid,
 339                                         ld->ld_rebind_params );
 340
 341                                 ld->ld_defconn = savedefconn;
 342                                 --lc->lconn_refcnt;
 343
 344                                 if( err != 0) {
 345                                 err = -1;
 346                                         ldap_free_connection( ld, lc, 1, 0 );
 347                                         lc = NULL;
 348                         }
 349                                 ldap_free_urldesc( srvfunc);
 350                 }
 351                 } else {
 352                         savedefconn = ld->ld_defconn;
 353                         ++lc->lconn_refcnt;     /* avoid premature free */
 354                         ld->ld_defconn = lc;
 355
 356 #ifdef NEW_LOGGING
 357                         LDAP_LOG (( "request", LDAP_LEVEL_DETAIL1,
 358                                 "ldap_new_connection: anonymous rebind via ldap_bind_s\n" ));
 359 #else
 360                         Debug( LDAP_DEBUG_TRACE, "anonymous rebind via ldap_bind_s\n", 0, 0, 0);
 361 #endif
 362                         if ( ldap_bind_s( ld, "", "", LDAP_AUTH_SIMPLE ) != LDAP_SUCCESS ) {
 363                                 err = -1;
 364                         }
 365                         ld->ld_defconn = savedefconn;
 366                         --lc->lconn_refcnt;
 367
 368                 if ( err != 0 ) {
 369                         ldap_free_connection( ld, lc, 1, 0 );
 370                         lc = NULL;
 371                 }
 372         }
 373                 if( lc != NULL)
 374                         lc->lconn_rebind_inprogress = 0;
 375         }
 376
 377         return( lc );
 378 }
 379
 380
 381 static LDAPConn *
 382 find_connection( LDAP *ld, LDAPURLDesc *srv, int any )
 383 /*
 384  * return an existing connection (if any) to the server srv
 385  * if "any" is non-zero, check for any server in the "srv" chain
 386  */
 387 {
 388         LDAPConn        *lc;
 389         LDAPURLDesc     *ls;
 390
 391         for ( lc = ld->ld_conns; lc != NULL; lc = lc->lconn_next ) {
 392                 for ( ls = srv; ls != NULL; ls = ls->lud_next ) {
 393                         if ( lc->lconn_server->lud_host != NULL &&
 394                                 *lc->lconn_server->lud_host != '\0' &&
 395                             ls->lud_host != NULL && *ls->lud_host != '\0' &&
 396                                 strcasecmp( ls->lud_host, lc->lconn_server->lud_host ) == 0
 397                             && ls->lud_port == lc->lconn_server->lud_port ) {
 398                                 return lc;
 399                         }
 400                         if ( !any ) {
 401                                 break;
 402                         }
 403                 }
 404         }
 405
 406         return NULL;
 407 }
 408
 409
 410
 411 static void
 412 use_connection( LDAP *ld, LDAPConn *lc )
 413 {
 414         ++lc->lconn_refcnt;
 415         lc->lconn_lastused = time( NULL );
 416 }
 417
 418
 419 void
 420 ldap_free_connection( LDAP *ld, LDAPConn *lc, int force, int unbind )
 421 {
 422         LDAPConn        *tmplc, *prevlc;
 423
 424 #ifdef NEW_LOGGING
 425         LDAP_LOG (( "request", LDAP_LEVEL_ENTRY, "ldap_free_connection\n" ));
 426 #else
 427         Debug( LDAP_DEBUG_TRACE, "ldap_free_connection\n", 0, 0, 0 );
 428 #endif
 429
 430         if ( force || --lc->lconn_refcnt <= 0 ) {
 431                 if ( lc->lconn_status == LDAP_CONNST_CONNECTED ) {
 432                         ldap_mark_select_clear( ld, lc->lconn_sb );
 433                         if ( unbind ) {
 434                                 ldap_send_unbind( ld, lc->lconn_sb, NULL, NULL );
 435                         }
 436                 }
 437
 438                 if( lc->lconn_ber != NULL ) {
 439                         ber_free( lc->lconn_ber, 1 );
 440                 }
 441
 442                 ldap_int_sasl_close( ld, lc );
 443
 444                 prevlc = NULL;
 445                 for ( tmplc = ld->ld_conns; tmplc != NULL;
 446                     tmplc = tmplc->lconn_next ) {
 447                         if ( tmplc == lc ) {
 448                                 if ( prevlc == NULL ) {
 449                                     ld->ld_conns = tmplc->lconn_next;
 450                                 } else {
 451                                     prevlc->lconn_next = tmplc->lconn_next;
 452                                 }
 453                                 break;
 454                         }
 455                         prevlc = tmplc;
 456                 }
 457                 ldap_free_urllist( lc->lconn_server );
 458 #ifdef LDAP_API_FEATURE_X_OPENLDAP_V2_KBIND
 459                 if ( lc->lconn_krbinstance != NULL ) {
 460                         LDAP_FREE( lc->lconn_krbinstance );
 461                 }
 462 #endif
 463                 if ( lc->lconn_sb != ld->ld_sb ) {
 464                         ber_sockbuf_free( lc->lconn_sb );
 465                 }
 466                 if( lc->lconn_rebind_queue != NULL) {
 467                         int i;
 468                         for( i = 0; lc->lconn_rebind_queue[i] != NULL; i++) {
 469                                 LDAP_VFREE(lc->lconn_rebind_queue[i]);
 470                         }
 471                         LDAP_FREE( lc->lconn_rebind_queue);
 472                 }
 473                 LDAP_FREE( lc );
 474 #ifdef NEW_LOGGING
 475                 LDAP_LOG (( "request", LDAP_LEVEL_RESULTS,
 476                         "ldap_free_connection: actually freed\n" ));
 477 #else
 478                 Debug( LDAP_DEBUG_TRACE, "ldap_free_connection: actually freed\n",
 479                     0, 0, 0 );
 480 #endif
 481         } else {
 482                 lc->lconn_lastused = time( NULL );
 483 #ifdef NEW_LOGGING
 484                 LDAP_LOG (( "request", LDAP_LEVEL_RESULTS,
 485                         "ldap_free_connection: refcnt %d\n", lc->lconn_refcnt ));
 486 #else
 487                 Debug( LDAP_DEBUG_TRACE, "ldap_free_connection: refcnt %d\n",
 488                     lc->lconn_refcnt, 0, 0 );
 489 #endif
 490         }
 491 }
 492
 493
 494 #ifdef LDAP_DEBUG
 495 void
 496 ldap_dump_connection( LDAP *ld, LDAPConn *lconns, int all )
 497 {
 498         LDAPConn        *lc;
 499         char            timebuf[32];
 500
 501         fprintf( stderr, "** Connection%s:\n", all ? "s" : "" );
 502         for ( lc = lconns; lc != NULL; lc = lc->lconn_next ) {
 503                 if ( lc->lconn_server != NULL ) {
 504                         fprintf( stderr, "* host: %s  port: %d%s\n",
 505                             ( lc->lconn_server->lud_host == NULL ) ? "(null)"
 506                             : lc->lconn_server->lud_host,
 507                             lc->lconn_server->lud_port, ( lc->lconn_sb ==
 508                             ld->ld_sb ) ? "  (default)" : "" );
 509                 }
 510                 fprintf( stderr, "  refcnt: %d  status: %s\n", lc->lconn_refcnt,
 511                     ( lc->lconn_status == LDAP_CONNST_NEEDSOCKET ) ?
 512                     "NeedSocket" : ( lc->lconn_status ==
 513                     LDAP_CONNST_CONNECTING ) ? "Connecting" : "Connected" );
 514                 fprintf( stderr, "  last used: %s",
 515                     ldap_pvt_ctime( &lc->lconn_lastused, timebuf ));
 516                 if( lc->lconn_rebind_inprogress ) {
 517                         fprintf( stderr, "  rebind in progress\n");
 518                         if( lc->lconn_rebind_queue != NULL) {
 519                                 int i = 0;
 520                                 for( ;lc->lconn_rebind_queue[i] != NULL; i++) {
 521                                         int j = 0;
 522                                         for( ;lc->lconn_rebind_queue[i][j] != 0; j++) {
 523                                                 fprintf( stderr, "    queue %d entry %d - %s\n",
 524                                                         i, j, lc->lconn_rebind_queue[i][j]);
 525                                         }
 526                                 }
 527                         } else {
 528                                 fprintf( stderr, "    queue is empty\n");
 529                         }
 530                 }
 531                 fprintf(stderr, "\n");
 532                 if ( !all ) {
 533                         break;
 534                 }
 535         }
 536 }
 537
 538
 539 void
 540 ldap_dump_requests_and_responses( LDAP *ld )
 541 {
 542         LDAPRequest     *lr;
 543         LDAPMessage     *lm, *l;
 544
 545         fprintf( stderr, "** Outstanding Requests:\n" );
 546         if (( lr = ld->ld_requests ) == NULL ) {
 547                 fprintf( stderr, "   Empty\n" );
 548         }
 549         for ( ; lr != NULL; lr = lr->lr_next ) {
 550             fprintf( stderr, " * msgid %d,  origid %d, status %s\n",
 551                 lr->lr_msgid, lr->lr_origid,
 552                 ( lr->lr_status == LDAP_REQST_INPROGRESS ) ? "InProgress" :
 553                 ( lr->lr_status == LDAP_REQST_CHASINGREFS ) ? "ChasingRefs" :
 554                 ( lr->lr_status == LDAP_REQST_NOTCONNECTED ) ? "NotConnected" :
 555                 ( lr->lr_status == LDAP_REQST_WRITING) ? "Writing" :
 556                 ( lr->lr_status == LDAP_REQST_COMPLETED ? "Request Completed" : "Invalid Status"));
 557             fprintf( stderr, "   outstanding referrals %d, parent count %d\n",
 558                     lr->lr_outrefcnt, lr->lr_parentcnt );
 559         }
 560
 561         fprintf( stderr, "** Response Queue:\n" );
 562         if (( lm = ld->ld_responses ) == NULL ) {
 563                 fprintf( stderr, "   Empty\n" );
 564         }
 565         for ( ; lm != NULL; lm = lm->lm_next ) {
 566                 fprintf( stderr, " * msgid %d,  type %lu\n",
 567                     lm->lm_msgid, (unsigned long) lm->lm_msgtype );
 568                 if (( l = lm->lm_chain ) != NULL ) {
 569                         fprintf( stderr, "   chained responses:\n" );
 570                         for ( ; l != NULL; l = l->lm_chain ) {
 571                                 fprintf( stderr,
 572                                     "  * msgid %d,  type %lu\n",
 573                                     l->lm_msgid,
 574                                     (unsigned long) l->lm_msgtype );
 575                         }
 576                 }
 577         }
 578 }
 579 #endif /* LDAP_DEBUG */
 580
 581 void
 582 ldap_free_request_int( LDAP *ld, LDAPRequest *lr )
 583 {
 584         if ( lr->lr_prev == NULL ) {
 585                 ld->ld_requests = lr->lr_next;
 586         } else {
 587                 lr->lr_prev->lr_next = lr->lr_next;
 588         }
 589
 590         if ( lr->lr_next != NULL ) {
 591                 lr->lr_next->lr_prev = lr->lr_prev;
 592         }
 593
 594         if ( lr->lr_ber != NULL ) {
 595                 ber_free( lr->lr_ber, 1 );
 596         }
 597
 598         if ( lr->lr_res_error != NULL ) {
 599                 LDAP_FREE( lr->lr_res_error );
 600         }
 601
 602         if ( lr->lr_res_matched != NULL ) {
 603                 LDAP_FREE( lr->lr_res_matched );
 604         }
 605
 606         LDAP_FREE( lr );
 607 }
 608
 609 void
 610 ldap_free_request( LDAP *ld, LDAPRequest *lr )
 611 {
 612         LDAPRequest     **ttmplr;
 613
 614 #ifdef NEW_LOGGING
 615         LDAP_LOG (( "request", LDAP_LEVEL_ARGS,
 616                 "ldap_free_request (origid %d, msgid %d)\n",
 617                 lr->lr_origid, lr->lr_msgid ));
 618 #else
 619         Debug( LDAP_DEBUG_TRACE, "ldap_free_request (origid %d, msgid %d)\n",
 620                 lr->lr_origid, lr->lr_msgid, 0 );
 621 #endif
 622
 623         if ( lr->lr_parent != NULL ) {
 624                 --lr->lr_parent->lr_outrefcnt;
 625                 for ( ttmplr = &lr->lr_parent->lr_child; *ttmplr && *ttmplr != lr; ttmplr = &(*ttmplr)->lr_refnext );
 626                 if ( *ttmplr == lr )
 627                         *ttmplr = lr->lr_refnext;
 628         } else {
 629                 /* free all referrals (child requests) */
 630                 while ( lr->lr_child )
 631                         ldap_free_request( ld, lr->lr_child );
 632         }
 633         ldap_free_request_int( ld, lr );
 634 }
 635
 636
 637 /*
 638  * Chase v3 referrals
 639  *
 640  * Parameters:
 641  *  (IN) ld = LDAP connection handle
 642  *  (IN) lr = LDAP Request structure
 643  *  (IN) refs = array of pointers to referral strings that we will chase
 644  *              The array will be free'd by this function when no longer needed
 645  *  (IN) sref != 0 if following search reference
 646  *  (OUT) errstrp = Place to return a string of referrals which could not be followed
 647  *  (OUT) hadrefp = 1 if sucessfully followed referral
 648  *
 649  * Return value - number of referrals followed
 650  */
 651 int
 652 ldap_chase_v3referrals( LDAP *ld, LDAPRequest *lr, char **refs, int sref, char **errstrp, int *hadrefp )
 653 {
 654         char            *unfollowed;
 655         int                      unfollowedcnt = 0;
 656         LDAPRequest     *origreq;
 657         LDAPURLDesc     *srv = NULL;
 658         BerElement      *ber;
 659         char            **refarray = NULL;
 660         LDAPConn        *lc;
 661         int                      rc, count, i, j;
 662         LDAPreqinfo  rinfo;
 663
 664         ld->ld_errno = LDAP_SUCCESS;    /* optimistic */
 665         *hadrefp = 0;
 666
 667 #ifdef NEW_LOGGING
 668         LDAP_LOG (( "request", LDAP_LEVEL_ENTRY, "ldap_chase_v3referrals\n" ));
 669 #else
 670         Debug( LDAP_DEBUG_TRACE, "ldap_chase_v3referrals\n", 0, 0, 0 );
 671 #endif
 672
 673         unfollowed = NULL;
 674         rc = count = 0;
 675
 676         /* If no referrals in array, return */
 677         if ( (refs == NULL) || ( (refs)[0] == NULL) ) {
 678                 rc = 0;
 679                 goto done;
 680         }
 681
 682         /* Check for hop limit exceeded */
 683         if ( lr->lr_parentcnt >= ld->ld_refhoplimit ) {
 684 #ifdef NEW_LOGGING
 685                 LDAP_LOG (( "request", LDAP_LEVEL_DETAIL1,
 686                         "ldap_chase_v3referrals: more than %d referral hops (dropping)\n",
 687                         ld->ld_refhoplimit ));
 688 #else
 689                 Debug( LDAP_DEBUG_ANY,
 690                     "more than %d referral hops (dropping)\n", ld->ld_refhoplimit, 0, 0 );
 691 #endif
 692                 ld->ld_errno = LDAP_REFERRAL_LIMIT_EXCEEDED;
 693             rc = -1;
 694                 goto done;
 695         }
 696
 697         /* find original request */
 698         for ( origreq = lr;
 699                 origreq->lr_parent != NULL;
 700                 origreq = origreq->lr_parent )
 701         {
 702                 /* empty */ ;
 703         }
 704
 705         refarray = refs;
 706         refs = NULL;
 707         /* parse out & follow referrals */
 708         for( i=0; refarray[i] != NULL; i++) {
 709                 /* Parse the referral URL */
 710                 if (( rc = ldap_url_parse_ext( refarray[i], &srv)) != LDAP_SUCCESS) {
 711                         ld->ld_errno = rc;
 712                         rc = -1;
 713                         goto done;
 714                 }
 715
 716                 if( srv->lud_crit_exts ) {
 717                         /* we do not support any extensions */
 718                         ld->ld_errno = LDAP_NOT_SUPPORTED;
 719                         rc = -1;
 720                         goto done;
 721                 }
 722
 723                 /* treat ldap://hostpart and ldap://hostpart/ the same */
 724                 if ( srv->lud_dn && srv->lud_dn[0] == '\0' ) {
 725                         LDAP_FREE( srv->lud_dn );
 726                         srv->lud_dn = NULL;
 727                 }
 728
 729                 /* check connection for re-bind in progress */
 730                 if (( lc = find_connection( ld, srv, 1 )) != NULL ) {
 731                         if( lc->lconn_rebind_inprogress) {
 732                                 /* We are already chasing a referral or search reference and a
 733                                  * bind on that connection is in progress.  We must queue
 734                                  * referrals on that connection, so we don't get a request
 735                                  * going out before the bind operation completes. This happens
 736                                  * if two search references come in one behind the other
 737                                  * for the same server with different contexts.
 738                                  */
 739 #ifdef NEW_LOGGING
 740                                 LDAP_LOG (( "request", LDAP_LEVEL_DETAIL1,
 741                                         "ldap_chase_v3referrals: queue referral \"%s\"\n",
 742                                         refarray[i] ));
 743 #else
 744                                 Debug( LDAP_DEBUG_TRACE,
 745                                         "ldap_chase_v3referrals: queue referral \"%s\"\n",
 746                                         refarray[i], 0, 0);
 747 #endif
 748                                 if( lc->lconn_rebind_queue == NULL ) {
 749                                         /* Create a referral list */
 750                                         lc->lconn_rebind_queue =
 751                                                 (char ***) LDAP_MALLOC( sizeof(void *) * 2);
 752
 753                                         if( lc->lconn_rebind_queue == NULL) {
 754                                                 ld->ld_errno = LDAP_NO_MEMORY;
 755                                                 rc = -1;
 756                                                 goto done;
 757                                         }
 758
 759                                         lc->lconn_rebind_queue[0] = refarray;
 760                                         lc->lconn_rebind_queue[1] = NULL;
 761                                         refarray = NULL;
 762
 763                                 } else {
 764                                         /* Count how many referral arrays we already have */
 765                                         for( j = 0; lc->lconn_rebind_queue[j] != NULL; j++) {
 766                                                 /* empty */;
 767                                         }
 768
 769                                         /* Add the new referral to the list */
 770                                         lc->lconn_rebind_queue = (char ***) LDAP_REALLOC(
 771                                                 lc->lconn_rebind_queue, sizeof(void *) * (j + 2));
 772
 773                                         if( lc->lconn_rebind_queue == NULL ) {
 774                                                 ld->ld_errno = LDAP_NO_MEMORY;
 775                                                 rc = -1;
 776                                                 goto done;
 777                                         }
 778                                         lc->lconn_rebind_queue[j] = refarray;
 779                                         lc->lconn_rebind_queue[j+1] = NULL;
 780                                         refarray = NULL;
 781                                 }
 782
 783                                 /* We have queued the referral/reference, now just return */
 784                                 rc = 0;
 785                                 *hadrefp = 1;
 786                                 count = 1; /* Pretend we already followed referral */
 787                                 goto done;
 788                         }
 789                 }
 790                 /* Re-encode the request with the new starting point of the search.
 791                  * Note: In the future we also need to replace the filter if one
 792                  * was provided with the search reference
 793                  */
 794
 795                 /* For references we don't want old dn if new dn empty */
 796                 if ( sref && srv->lud_dn == NULL ) {
 797                         srv->lud_dn = LDAP_STRDUP( "" );
 798                 }
 799
 800                 ber = re_encode_request( ld, origreq->lr_ber, ++ld->ld_msgid,
 801                         sref, srv, &rinfo.ri_request );
 802
 803                 if( ber == NULL ) {
 804                         ld->ld_errno = LDAP_ENCODING_ERROR;
 805                         rc = -1;
 806                         goto done;
 807                 }
 808
 809 #ifdef NEW_LOGGING
 810                 LDAP_LOG (( "request", LDAP_LEVEL_DETAIL1,
 811                         "ldap_chase_v3referrals: msgid %d, url \"%s\"\n",
 812                         lr->lr_msgid, refarray[i] ));
 813 #else
 814                 Debug( LDAP_DEBUG_TRACE,
 815                         "ldap_chase_v3referral: msgid %d, url \"%s\"\n",
 816                         lr->lr_msgid, refarray[i], 0);
 817 #endif
 818
 819                 /* Send the new request to the server - may require a bind */
 820                 rinfo.ri_msgid = origreq->lr_origid;
 821                 rinfo.ri_url = refarray[i];
 822                 if ( (rc = ldap_send_server_request( ld, ber, ld->ld_msgid,
 823                         origreq, srv, NULL, &rinfo )) < 0 ) {
 824                         /* Failure, try next referral in the list */
 825 #ifdef NEW_LOGGING
 826                         LDAP_LOG (( "request", LDAP_LEVEL_ERR,
 827                         "ldap_chase_v3referrals: Unable to chase referral \"%s\" (%s)\n",
 828                         refarray[i], ldap_err2string( ld->ld_errno ) ));
 829 #else
 830                         Debug( LDAP_DEBUG_ANY, "Unable to chase referral \"%s\" (%s)\n",
 831                                 refarray[i], ldap_err2string( ld->ld_errno ), 0);
 832 #endif
 833                         unfollowedcnt += ldap_append_referral( ld, &unfollowed, refarray[i]);
 834                         ldap_free_urllist(srv);
 835                         srv = NULL;
 836                 } else {
 837                         /* Success, no need to try this referral list further */
 838                         rc = 0;
 839                         ++count;
 840                         *hadrefp = 1;
 841
 842                         /* check if there is a queue of referrals that came in during bind */
 843                         if( lc == NULL) {
 844                                 if (( lc = find_connection( ld, srv, 1 )) == NULL ) {
 845                                         ld->ld_errno = LDAP_OPERATIONS_ERROR;
 846                                         rc = -1;
 847                                         goto done;
 848                                 }
 849                         }
 850
 851                         if( lc->lconn_rebind_queue != NULL) {
 852                                 /* Release resources of previous list */
 853                                 LDAP_VFREE(refarray);
 854                                 refarray = NULL;
 855                                 ldap_free_urllist(srv);
 856                                 srv = NULL;
 857
 858                                 /* Pull entries off end of queue so list always null terminated */
 859                                 for( j = 0; lc->lconn_rebind_queue[j] != NULL; j++) {
 860                                         ;
 861                                 }
 862                                 refarray = lc->lconn_rebind_queue[j-1];
 863                                 lc->lconn_rebind_queue[j-1] = NULL;
 864                                 /* we pulled off last entry from queue, free queue */
 865                                 if ( j == 1 ) {
 866                                         LDAP_FREE( lc->lconn_rebind_queue);
 867                                         lc->lconn_rebind_queue = NULL;
 868                                 }
 869                                 /* restart the loop the with new referral list */
 870                                 i = -1;
 871                                 continue;
 872                         }
 873                         break; /* referral followed, break out of for loop */
 874                 }
 875         } /* end for loop */
 876 done:
 877         LDAP_VFREE(refarray);
 878         ldap_free_urllist(srv);
 879         LDAP_FREE( *errstrp );
 880
 881         if( rc == 0) {
 882                 *errstrp = NULL;
 883                 LDAP_FREE( unfollowed );
 884                 return count;
 885         } else {
 886                 ld->ld_errno = LDAP_REFERRAL;
 887                 *errstrp = unfollowed;
 888                 return rc;
 889         }
 890 }
 891
 892 /*
 893  * XXX merging of errors in this routine needs to be improved
 894  */
 895 int
 896 ldap_chase_referrals( LDAP *ld,
 897         LDAPRequest *lr,
 898         char **errstrp,
 899         int sref,
 900         int *hadrefp )
 901 {
 902         int             rc, count;
 903         unsigned        len;
 904         char            *p, *ref, *unfollowed;
 905         LDAPRequest     *origreq;
 906         LDAPURLDesc     *srv;
 907         BerElement      *ber;
 908         LDAPreqinfo  rinfo;
 909
 910 #ifdef NEW_LOGGING
 911         LDAP_LOG (( "request", LDAP_LEVEL_ENTRY, "ldap_chase_referrals\n" ));
 912 #else
 913         Debug( LDAP_DEBUG_TRACE, "ldap_chase_referrals\n", 0, 0, 0 );
 914 #endif
 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 #ifdef NEW_LOGGING
 938                 LDAP_LOG (( "request", LDAP_LEVEL_ENTRY,
 939                         "ldap_chase_referrals: more than %d referral hops (dropping)\n",
 940                         ld->ld_refhoplimit ));
 941 #else
 942                 Debug( LDAP_DEBUG_ANY,
 943                     "more than %d referral hops (dropping)\n",
 944                     ld->ld_refhoplimit, 0, 0 );
 945 #endif
 946                     /* XXX report as error in ld->ld_errno? */
 947                     return( 0 );
 948         }
 949
 950         /* find original request */
 951         for ( origreq = lr; origreq->lr_parent != NULL;
 952              origreq = origreq->lr_parent ) {
 953                 /* empty */;
 954         }
 955
 956         unfollowed = NULL;
 957         rc = count = 0;
 958
 959         /* parse out & follow referrals */
 960         for ( ref = p; rc == 0 && ref != NULL; ref = p ) {
 961                 if (( p = strchr( ref, '\n' )) != NULL ) {
 962                         *p++ = '\0';
 963                 } else {
 964                         p = NULL;
 965                 }
 966
 967                 rc = ldap_url_parse_ext( ref, &srv );
 968
 969                 if ( rc != LDAP_URL_SUCCESS ) {
 970 #ifdef NEW_LOGGING
 971                         LDAP_LOG (( "request", LDAP_LEVEL_DETAIL1,
 972                                 "ldap_chase_referrals: ignoring unknown referral <%s>\n",
 973                                 ref ));
 974 #else
 975                         Debug( LDAP_DEBUG_TRACE,
 976                             "ignoring unknown referral <%s>\n", ref, 0, 0 );
 977 #endif
 978                         rc = ldap_append_referral( ld, &unfollowed, ref );
 979                         *hadrefp = 1;
 980                         continue;
 981                 }
 982
 983                 if( srv->lud_dn != NULL && srv->lud_dn == '\0' ) {
 984                         LDAP_FREE( srv->lud_dn );
 985                         srv->lud_dn = NULL;
 986                 }
 987
 988 #ifdef NEW_LOGGING
 989                 LDAP_LOG (( "request", LDAP_LEVEL_DETAIL1,
 990                         "ldap_chase_referrals: chasing LDAP referral <%s>\n", ref ));
 991 #else
 992                 Debug( LDAP_DEBUG_TRACE,
 993                     "chasing LDAP referral: <%s>\n", ref, 0, 0 );
 994 #endif
 995
 996                 *hadrefp = 1;
 997
 998                 ber = re_encode_request( ld, origreq->lr_ber,
 999                     ++ld->ld_msgid, sref, srv, &rinfo.ri_request );
1000
1001                 if( ber == NULL ) {
1002                         return -1 ;
1003                 }
1004
1005                 /* copy the complete referral for rebind process */
1006                 rinfo.ri_url = LDAP_STRDUP( ref );
1007
1008                 rinfo.ri_msgid = origreq->lr_origid;
1009
1010                 rc = ldap_send_server_request( ld, ber, ld->ld_msgid,
1011                     lr, srv, NULL, &rinfo );
1012
1013                 LDAP_FREE( rinfo.ri_url );
1014
1015                 if( rc >= 0 ) {
1016                         ++count;
1017                 } else {
1018 #ifdef NEW_LOGGING
1019                         LDAP_LOG (( "request", LDAP_LEVEL_ERR,
1020                                 "ldap_chase_referrals: Unable to chase referral <%s>\n",
1021                                 ldap_err2string( ld->ld_errno) ));
1022 #else
1023                         Debug( LDAP_DEBUG_ANY,
1024                             "Unable to chase referral (%s)\n",
1025                             ldap_err2string( ld->ld_errno ), 0, 0 );
1026 #endif
1027                         rc = ldap_append_referral( ld, &unfollowed, ref );
1028                 }
1029
1030                 ldap_free_urllist(srv);
1031         }
1032
1033         LDAP_FREE( *errstrp );
1034         *errstrp = unfollowed;
1035
1036         return(( rc == 0 ) ? count : rc );
1037 }
1038
1039
1040 int
1041 ldap_append_referral( LDAP *ld, char **referralsp, char *s )
1042 {
1043         int     first;
1044
1045         if ( *referralsp == NULL ) {
1046                 first = 1;
1047                 *referralsp = (char *)LDAP_MALLOC( strlen( s ) + LDAP_REF_STR_LEN
1048                     + 1 );
1049         } else {
1050                 first = 0;
1051                 *referralsp = (char *)LDAP_REALLOC( *referralsp,
1052                     strlen( *referralsp ) + strlen( s ) + 2 );
1053         }
1054
1055         if ( *referralsp == NULL ) {
1056                 ld->ld_errno = LDAP_NO_MEMORY;
1057                 return( -1 );
1058         }
1059
1060         if ( first ) {
1061                 strcpy( *referralsp, LDAP_REF_STR );
1062         } else {
1063                 strcat( *referralsp, "\n" );
1064         }
1065         strcat( *referralsp, s );
1066
1067         return( 0 );
1068 }
1069
1070
1071
1072 static BerElement *
1073 re_encode_request( LDAP *ld,
1074         BerElement *origber,
1075         ber_int_t msgid,
1076         int sref,
1077         LDAPURLDesc *srv,
1078         int *type )
1079 {
1080         /*
1081          * XXX this routine knows way too much about how the lber library works!
1082          */
1083         ber_int_t       along;
1084         ber_tag_t       tag;
1085         ber_tag_t       rtag;
1086         ber_int_t       ver;
1087         ber_int_t       scope;
1088         int             rc;
1089         BerElement      tmpber, *ber;
1090         char            *orig_dn;
1091         char            *dn;
1092
1093 #ifdef NEW_LOGGING
1094         LDAP_LOG (( "request", LDAP_LEVEL_ARGS,
1095                 "re_encode_request: new msgid %ld, new dn <%s>\n",
1096                 (long) msgid,
1097                 ( srv == NULL || srv->lud_dn == NULL ) ? "NONE" : srv->lud_dn ));
1098 #else
1099         Debug( LDAP_DEBUG_TRACE,
1100             "re_encode_request: new msgid %ld, new dn <%s>\n",
1101             (long) msgid,
1102                 ( srv == NULL || srv->lud_dn == NULL) ? "NONE" : srv->lud_dn, 0 );
1103 #endif
1104
1105         tmpber = *origber;
1106
1107         /*
1108          * all LDAP requests are sequences that start with a message id.
1109          * For all except delete, this is followed by a sequence that is
1110          * tagged with the operation code.  For delete, the provided DN
1111          * is not wrapped by a sequence.
1112          */
1113         rtag = ber_scanf( &tmpber, "{it", /*}*/ &along, &tag );
1114
1115         if ( rtag == LBER_ERROR ) {
1116                 ld->ld_errno = LDAP_DECODING_ERROR;
1117                 return( NULL );
1118         }
1119
1120         assert( tag != 0);
1121         if ( tag == LDAP_REQ_BIND ) {
1122                 /* bind requests have a version number before the DN & other stuff */
1123                 rtag = ber_scanf( &tmpber, "{ia" /*}*/, &ver, &orig_dn );
1124
1125         } else if ( tag == LDAP_REQ_DELETE ) {
1126                 /* delete requests don't have a DN wrapping sequence */
1127                 rtag = ber_scanf( &tmpber, "a", &orig_dn );
1128
1129         } else if ( tag == LDAP_REQ_SEARCH ) {
1130                 /* search requests need to be re-scope-ed */
1131                 rtag = ber_scanf( &tmpber, "{ae" /*"}"*/, &orig_dn, &scope );
1132
1133                 if( srv->lud_scope != LDAP_SCOPE_DEFAULT ) {
1134                         /* use the scope provided in reference */
1135                         scope = srv->lud_scope;
1136
1137                 } else if ( sref && scope != LDAP_SCOPE_SUBTREE ) {
1138                         /* use scope implied by previous operation */
1139                         /*   base -> base */
1140                         /*   one -> base */
1141                         /*   subtree -> subtree */
1142                         scope = LDAP_SCOPE_BASE;
1143                 }
1144
1145         } else {
1146                 rtag = ber_scanf( &tmpber, "{a" /*}*/, &orig_dn );
1147         }
1148
1149         if( rtag == LBER_ERROR ) {
1150                 ld->ld_errno = LDAP_DECODING_ERROR;
1151                 return NULL;
1152         }
1153
1154         if (( ber = ldap_alloc_ber_with_options( ld )) == NULL ) {
1155                 return NULL;
1156         }
1157
1158         if ( srv->lud_dn == NULL ) {
1159                 dn = orig_dn;
1160         } else {
1161                 dn = srv->lud_dn;
1162         }
1163
1164         if ( tag == LDAP_REQ_BIND ) {
1165                 rc = ber_printf( ber, "{it{is" /*}}*/, msgid, tag, ver, dn );
1166         } else if ( tag == LDAP_REQ_DELETE ) {
1167                 rc = ber_printf( ber, "{itsN}", msgid, tag, dn );
1168         } else if ( tag == LDAP_REQ_SEARCH ) {
1169                 rc = ber_printf( ber, "{it{se" /*}}*/, msgid, tag, dn, scope );
1170         } else {
1171                 rc = ber_printf( ber, "{it{s" /*}}*/, msgid, tag, dn );
1172         }
1173
1174         LDAP_FREE( orig_dn );
1175
1176         if ( rc == -1 ) {
1177                 ld->ld_errno = LDAP_ENCODING_ERROR;
1178                 ber_free( ber, 1 );
1179                 return NULL;
1180         }
1181
1182         if ( tag != LDAP_REQ_DELETE && (
1183                 ber_write(ber, tmpber.ber_ptr, ( tmpber.ber_end - tmpber.ber_ptr ), 0)
1184                 != ( tmpber.ber_end - tmpber.ber_ptr ) ||
1185             ber_printf( ber, /*{{*/ "N}N}" ) == -1 ) )
1186         {
1187                 ld->ld_errno = LDAP_ENCODING_ERROR;
1188                 ber_free( ber, 1 );
1189                 return NULL;
1190         }
1191
1192 #ifdef LDAP_DEBUG
1193         if ( ldap_debug & LDAP_DEBUG_PACKETS ) {
1194 #ifdef NEW_LOGGING
1195                 LDAP_LOG (( "request", LDAP_LEVEL_DETAIL1,
1196                         "re_encode_request: new request is:\n" ));
1197 #else
1198                 Debug( LDAP_DEBUG_ANY, "re_encode_request new request is:\n",
1199                     0, 0, 0 );
1200 #endif
1201                 ber_log_dump( LDAP_DEBUG_BER, ldap_debug, ber, 0 );
1202         }
1203 #endif /* LDAP_DEBUG */
1204
1205         *type = tag;    /* return request type */
1206         return ber;
1207 }
1208
1209
1210 LDAPRequest *
1211 ldap_find_request_by_msgid( LDAP *ld, ber_int_t msgid )
1212 {
1213         LDAPRequest     *lr;
1214
1215         for ( lr = ld->ld_requests; lr != NULL; lr = lr->lr_next ) {
1216                 if( lr->lr_status == LDAP_REQST_COMPLETED ) {
1217                         continue;       /* Skip completed requests */
1218                 }
1219                 if ( msgid == lr->lr_msgid ) {
1220                         break;
1221                 }
1222         }
1223
1224         return( lr );
1225 }
1226
1227