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  * call first time with *cntp = -1
 662  * when returns *cntp == -1, no referrals are left
 663  *
 664  * NOTE: may replace *refsp, or shuffle the contents
 665  * of the original array.
 666  */
 667 static int ldap_int_nextref(
 668         LDAP                    *ld,
 669         char                    ***refsp,
 670         int                     *cntp,
 671         void                    *params )
 672 {
 673         assert( refsp != NULL );
 674         assert( *refsp != NULL );
 675         assert( cntp != NULL );
 676
 677         if ( *cntp < -1 ) {
 678                 *cntp = -1;
 679                 return -1;
 680         }
 681
 682         (*cntp)++;
 683
 684         if ( (*refsp)[ *cntp ] == NULL ) {
 685                 *cntp = -1;
 686         }
 687
 688         return 0;
 689 }
 690
 691 /*
 692  * Chase v3 referrals
 693  *
 694  * Parameters:
 695  *  (IN) ld = LDAP connection handle
 696  *  (IN) lr = LDAP Request structure
 697  *  (IN) refs = array of pointers to referral strings that we will chase
 698  *              The array will be free'd by this function when no longer needed
 699  *  (IN) sref != 0 if following search reference
 700  *  (OUT) errstrp = Place to return a string of referrals which could not be followed
 701  *  (OUT) hadrefp = 1 if sucessfully followed referral
 702  *
 703  * Return value - number of referrals followed
 704  */
 705 int
 706 ldap_chase_v3referrals( LDAP *ld, LDAPRequest *lr, char **refs, int sref, char **errstrp, int *hadrefp )
 707 {
 708         char            *unfollowed;
 709         int                      unfollowedcnt = 0;
 710         LDAPRequest     *origreq;
 711         LDAPURLDesc     *srv = NULL;
 712         BerElement      *ber;
 713         char            **refarray = NULL;
 714         LDAPConn        *lc;
 715         int                      rc, count, i, j, id;
 716         LDAPreqinfo  rinfo;
 717
 718         ld->ld_errno = LDAP_SUCCESS;    /* optimistic */
 719         *hadrefp = 0;
 720
 721         Debug( LDAP_DEBUG_TRACE, "ldap_chase_v3referrals\n", 0, 0, 0 );
 722
 723         unfollowed = NULL;
 724         rc = count = 0;
 725
 726         /* If no referrals in array, return */
 727         if ( (refs == NULL) || ( (refs)[0] == NULL) ) {
 728                 rc = 0;
 729                 goto done;
 730         }
 731
 732         /* Check for hop limit exceeded */
 733         if ( lr->lr_parentcnt >= ld->ld_refhoplimit ) {
 734                 Debug( LDAP_DEBUG_ANY,
 735                     "more than %d referral hops (dropping)\n", ld->ld_refhoplimit, 0, 0 );
 736                 ld->ld_errno = LDAP_REFERRAL_LIMIT_EXCEEDED;
 737             rc = -1;
 738                 goto done;
 739         }
 740
 741         /* find original request */
 742         for ( origreq = lr;
 743                 origreq->lr_parent != NULL;
 744                 origreq = origreq->lr_parent )
 745         {
 746                 /* empty */ ;
 747         }
 748
 749         refarray = refs;
 750         refs = NULL;
 751
 752         if ( ld->ld_nextref_proc == NULL ) {
 753                 ld->ld_nextref_proc = ldap_int_nextref;
 754         }
 755
 756         /* parse out & follow referrals */
 757         i = -1;
 758         for ( ld->ld_nextref_proc( ld, &refarray, &i, ld->ld_nextref_params );
 759                         i != -1;
 760                         ld->ld_nextref_proc( ld, &refarray, &i, ld->ld_nextref_params ) )
 761         {
 762
 763                 /* Parse the referral URL */
 764                 if (( rc = ldap_url_parse_ext( refarray[i], &srv)) != LDAP_SUCCESS) {
 765                         ld->ld_errno = rc;
 766                         rc = -1;
 767                         goto done;
 768                 }
 769
 770                 if( srv->lud_crit_exts ) {
 771                         /* we do not support any extensions */
 772                         ld->ld_errno = LDAP_NOT_SUPPORTED;
 773                         rc = -1;
 774                         goto done;
 775                 }
 776
 777                 /* treat ldap://hostpart and ldap://hostpart/ the same */
 778                 if ( srv->lud_dn && srv->lud_dn[0] == '\0' ) {
 779                         LDAP_FREE( srv->lud_dn );
 780                         srv->lud_dn = NULL;
 781                 }
 782
 783                 /* check connection for re-bind in progress */
 784                 if (( lc = find_connection( ld, srv, 1 )) != NULL ) {
 785                         if( lc->lconn_rebind_inprogress) {
 786                                 /* We are already chasing a referral or search reference and a
 787                                  * bind on that connection is in progress.  We must queue
 788                                  * referrals on that connection, so we don't get a request
 789                                  * going out before the bind operation completes. This happens
 790                                  * if two search references come in one behind the other
 791                                  * for the same server with different contexts.
 792                                  */
 793                                 Debug( LDAP_DEBUG_TRACE,
 794                                         "ldap_chase_v3referrals: queue referral \"%s\"\n",
 795                                         refarray[i], 0, 0);
 796                                 if( lc->lconn_rebind_queue == NULL ) {
 797                                         /* Create a referral list */
 798                                         lc->lconn_rebind_queue =
 799                                                 (char ***) LDAP_MALLOC( sizeof(void *) * 2);
 800
 801                                         if( lc->lconn_rebind_queue == NULL) {
 802                                                 ld->ld_errno = LDAP_NO_MEMORY;
 803                                                 rc = -1;
 804                                                 goto done;
 805                                         }
 806
 807                                         lc->lconn_rebind_queue[0] = refarray;
 808                                         lc->lconn_rebind_queue[1] = NULL;
 809                                         refarray = NULL;
 810
 811                                 } else {
 812                                         /* Count how many referral arrays we already have */
 813                                         for( j = 0; lc->lconn_rebind_queue[j] != NULL; j++) {
 814                                                 /* empty */;
 815                                         }
 816
 817                                         /* Add the new referral to the list */
 818                                         lc->lconn_rebind_queue = (char ***) LDAP_REALLOC(
 819                                                 lc->lconn_rebind_queue, sizeof(void *) * (j + 2));
 820
 821                                         if( lc->lconn_rebind_queue == NULL ) {
 822                                                 ld->ld_errno = LDAP_NO_MEMORY;
 823                                                 rc = -1;
 824                                                 goto done;
 825                                         }
 826                                         lc->lconn_rebind_queue[j] = refarray;
 827                                         lc->lconn_rebind_queue[j+1] = NULL;
 828                                         refarray = NULL;
 829                                 }
 830
 831                                 /* We have queued the referral/reference, now just return */
 832                                 rc = 0;
 833                                 *hadrefp = 1;
 834                                 count = 1; /* Pretend we already followed referral */
 835                                 goto done;
 836                         }
 837                 }
 838                 /* Re-encode the request with the new starting point of the search.
 839                  * Note: In the future we also need to replace the filter if one
 840                  * was provided with the search reference
 841                  */
 842
 843                 /* For references we don't want old dn if new dn empty */
 844                 if ( sref && srv->lud_dn == NULL ) {
 845                         srv->lud_dn = LDAP_STRDUP( "" );
 846                 }
 847
 848                 LDAP_NEXT_MSGID( ld, id );
 849                 ber = re_encode_request( ld, origreq->lr_ber, id,
 850                         sref, srv, &rinfo.ri_request );
 851
 852                 if( ber == NULL ) {
 853                         ld->ld_errno = LDAP_ENCODING_ERROR;
 854                         rc = -1;
 855                         goto done;
 856                 }
 857
 858                 Debug( LDAP_DEBUG_TRACE,
 859                         "ldap_chase_v3referral: msgid %d, url \"%s\"\n",
 860                         lr->lr_msgid, refarray[i], 0);
 861
 862                 /* Send the new request to the server - may require a bind */
 863                 rinfo.ri_msgid = origreq->lr_origid;
 864                 rinfo.ri_url = refarray[i];
 865 #ifdef LDAP_R_COMPILE
 866                 ldap_pvt_thread_mutex_lock( &ld->ld_req_mutex );
 867 #endif
 868                 rc = ldap_send_server_request( ld, ber, id,
 869                         origreq, srv, NULL, &rinfo );
 870 #ifdef LDAP_R_COMPILE
 871                 ldap_pvt_thread_mutex_unlock( &ld->ld_req_mutex );
 872 #endif
 873                 if ( rc < 0 ) {
 874                         /* Failure, try next referral in the list */
 875                         Debug( LDAP_DEBUG_ANY, "Unable to chase referral \"%s\" (%s)\n",
 876                                 refarray[i], ldap_err2string( ld->ld_errno ), 0);
 877                         unfollowedcnt += ldap_append_referral( ld, &unfollowed, refarray[i]);
 878                         ldap_free_urllist(srv);
 879                         srv = NULL;
 880                 } else {
 881                         /* Success, no need to try this referral list further */
 882                         rc = 0;
 883                         ++count;
 884                         *hadrefp = 1;
 885
 886                         /* check if there is a queue of referrals that came in during bind */
 887                         if( lc == NULL) {
 888                                 if (( lc = find_connection( ld, srv, 1 )) == NULL ) {
 889                                         ld->ld_errno = LDAP_OPERATIONS_ERROR;
 890                                         rc = -1;
 891                                         goto done;
 892                                 }
 893                         }
 894
 895                         if( lc->lconn_rebind_queue != NULL) {
 896                                 /* Release resources of previous list */
 897                                 LDAP_VFREE(refarray);
 898                                 refarray = NULL;
 899                                 ldap_free_urllist(srv);
 900                                 srv = NULL;
 901
 902                                 /* Pull entries off end of queue so list always null terminated */
 903                                 for( j = 0; lc->lconn_rebind_queue[j] != NULL; j++) {
 904                                         ;
 905                                 }
 906                                 refarray = lc->lconn_rebind_queue[j-1];
 907                                 lc->lconn_rebind_queue[j-1] = NULL;
 908                                 /* we pulled off last entry from queue, free queue */
 909                                 if ( j == 1 ) {
 910                                         LDAP_FREE( lc->lconn_rebind_queue);
 911                                         lc->lconn_rebind_queue = NULL;
 912                                 }
 913                                 /* restart the loop the with new referral list */
 914                                 i = -1;
 915                                 continue;
 916                         }
 917                         break; /* referral followed, break out of for loop */
 918                 }
 919         } /* end for loop */
 920 done:
 921         LDAP_VFREE(refarray);
 922         ldap_free_urllist(srv);
 923         LDAP_FREE( *errstrp );
 924
 925         if( rc == 0) {
 926                 *errstrp = NULL;
 927                 LDAP_FREE( unfollowed );
 928                 return count;
 929         } else {
 930                 ld->ld_errno = LDAP_REFERRAL;
 931                 *errstrp = unfollowed;
 932                 return rc;
 933         }
 934 }
 935
 936 /*
 937  * XXX merging of errors in this routine needs to be improved
 938  */
 939 int
 940 ldap_chase_referrals( LDAP *ld,
 941         LDAPRequest *lr,
 942         char **errstrp,
 943         int sref,
 944         int *hadrefp )
 945 {
 946         int             rc, count, id;
 947         unsigned        len;
 948         char            *p, *ref, *unfollowed;
 949         LDAPRequest     *origreq;
 950         LDAPURLDesc     *srv;
 951         BerElement      *ber;
 952         LDAPreqinfo  rinfo;
 953
 954         Debug( LDAP_DEBUG_TRACE, "ldap_chase_referrals\n", 0, 0, 0 );
 955
 956         ld->ld_errno = LDAP_SUCCESS;    /* optimistic */
 957         *hadrefp = 0;
 958
 959         if ( *errstrp == NULL ) {
 960                 return( 0 );
 961         }
 962
 963         len = strlen( *errstrp );
 964         for ( p = *errstrp; len >= LDAP_REF_STR_LEN; ++p, --len ) {
 965                 if ( strncasecmp( p, LDAP_REF_STR, LDAP_REF_STR_LEN ) == 0 ) {
 966                         *p = '\0';
 967                         p += LDAP_REF_STR_LEN;
 968                         break;
 969                 }
 970         }
 971
 972         if ( len < LDAP_REF_STR_LEN ) {
 973                 return( 0 );
 974         }
 975
 976         if ( lr->lr_parentcnt >= ld->ld_refhoplimit ) {
 977                 Debug( LDAP_DEBUG_ANY,
 978                     "more than %d referral hops (dropping)\n",
 979                     ld->ld_refhoplimit, 0, 0 );
 980                     /* XXX report as error in ld->ld_errno? */
 981                     return( 0 );
 982         }
 983
 984         /* find original request */
 985         for ( origreq = lr; origreq->lr_parent != NULL;
 986              origreq = origreq->lr_parent ) {
 987                 /* empty */;
 988         }
 989
 990         unfollowed = NULL;
 991         rc = count = 0;
 992
 993         /* parse out & follow referrals */
 994         for ( ref = p; rc == 0 && ref != NULL; ref = p ) {
 995                 if (( p = strchr( ref, '\n' )) != NULL ) {
 996                         *p++ = '\0';
 997                 } else {
 998                         p = NULL;
 999                 }
1000
1001                 rc = ldap_url_parse_ext( ref, &srv );
1002
1003                 if ( rc != LDAP_URL_SUCCESS ) {
1004                         Debug( LDAP_DEBUG_TRACE,
1005                             "ignoring unknown referral <%s>\n", ref, 0, 0 );
1006                         rc = ldap_append_referral( ld, &unfollowed, ref );
1007                         *hadrefp = 1;
1008                         continue;
1009                 }
1010
1011                 if( srv->lud_dn != NULL && srv->lud_dn == '\0' ) {
1012                         LDAP_FREE( srv->lud_dn );
1013                         srv->lud_dn = NULL;
1014                 }
1015
1016                 Debug( LDAP_DEBUG_TRACE,
1017                     "chasing LDAP referral: <%s>\n", ref, 0, 0 );
1018
1019                 *hadrefp = 1;
1020
1021                 LDAP_NEXT_MSGID( ld, id );
1022                 ber = re_encode_request( ld, origreq->lr_ber,
1023                     id, sref, srv, &rinfo.ri_request );
1024
1025                 if( ber == NULL ) {
1026                         return -1 ;
1027                 }
1028
1029                 /* copy the complete referral for rebind process */
1030                 rinfo.ri_url = LDAP_STRDUP( ref );
1031
1032                 rinfo.ri_msgid = origreq->lr_origid;
1033
1034 #ifdef LDAP_R_COMPILE
1035         ldap_pvt_thread_mutex_lock( &ld->ld_req_mutex );
1036 #endif
1037                 rc = ldap_send_server_request( ld, ber, id,
1038                     lr, srv, NULL, &rinfo );
1039 #ifdef LDAP_R_COMPILE
1040         ldap_pvt_thread_mutex_unlock( &ld->ld_req_mutex );
1041 #endif
1042
1043                 LDAP_FREE( rinfo.ri_url );
1044
1045                 if( rc >= 0 ) {
1046                         ++count;
1047                 } else {
1048                         Debug( LDAP_DEBUG_ANY,
1049                             "Unable to chase referral (%s)\n",
1050                             ldap_err2string( ld->ld_errno ), 0, 0 );
1051                         rc = ldap_append_referral( ld, &unfollowed, ref );
1052                 }
1053
1054                 ldap_free_urllist(srv);
1055         }
1056
1057         LDAP_FREE( *errstrp );
1058         *errstrp = unfollowed;
1059
1060         return(( rc == 0 ) ? count : rc );
1061 }
1062
1063
1064 int
1065 ldap_append_referral( LDAP *ld, char **referralsp, char *s )
1066 {
1067         int     first;
1068
1069         if ( *referralsp == NULL ) {
1070                 first = 1;
1071                 *referralsp = (char *)LDAP_MALLOC( strlen( s ) + LDAP_REF_STR_LEN
1072                     + 1 );
1073         } else {
1074                 first = 0;
1075                 *referralsp = (char *)LDAP_REALLOC( *referralsp,
1076                     strlen( *referralsp ) + strlen( s ) + 2 );
1077         }
1078
1079         if ( *referralsp == NULL ) {
1080                 ld->ld_errno = LDAP_NO_MEMORY;
1081                 return( -1 );
1082         }
1083
1084         if ( first ) {
1085                 strcpy( *referralsp, LDAP_REF_STR );
1086         } else {
1087                 strcat( *referralsp, "\n" );
1088         }
1089         strcat( *referralsp, s );
1090
1091         return( 0 );
1092 }
1093
1094
1095
1096 static BerElement *
1097 re_encode_request( LDAP *ld,
1098         BerElement *origber,
1099         ber_int_t msgid,
1100         int sref,
1101         LDAPURLDesc *srv,
1102         int *type )
1103 {
1104         /*
1105          * XXX this routine knows way too much about how the lber library works!
1106          */
1107         ber_int_t       along;
1108         ber_tag_t       tag;
1109         ber_tag_t       rtag;
1110         ber_int_t       ver;
1111         ber_int_t       scope;
1112         int             rc;
1113         BerElement      tmpber, *ber;
1114         char            *orig_dn;
1115         char            *dn;
1116
1117         Debug( LDAP_DEBUG_TRACE,
1118             "re_encode_request: new msgid %ld, new dn <%s>\n",
1119             (long) msgid,
1120                 ( srv == NULL || srv->lud_dn == NULL) ? "NONE" : srv->lud_dn, 0 );
1121
1122         tmpber = *origber;
1123
1124         /*
1125          * all LDAP requests are sequences that start with a message id.
1126          * For all except delete, this is followed by a sequence that is
1127          * tagged with the operation code.  For delete, the provided DN
1128          * is not wrapped by a sequence.
1129          */
1130         rtag = ber_scanf( &tmpber, "{it", /*}*/ &along, &tag );
1131
1132         if ( rtag == LBER_ERROR ) {
1133                 ld->ld_errno = LDAP_DECODING_ERROR;
1134                 return( NULL );
1135         }
1136
1137         assert( tag != 0);
1138         if ( tag == LDAP_REQ_BIND ) {
1139                 /* bind requests have a version number before the DN & other stuff */
1140                 rtag = ber_scanf( &tmpber, "{ia" /*}*/, &ver, &orig_dn );
1141
1142         } else if ( tag == LDAP_REQ_DELETE ) {
1143                 /* delete requests don't have a DN wrapping sequence */
1144                 rtag = ber_scanf( &tmpber, "a", &orig_dn );
1145
1146         } else if ( tag == LDAP_REQ_SEARCH ) {
1147                 /* search requests need to be re-scope-ed */
1148                 rtag = ber_scanf( &tmpber, "{ae" /*"}"*/, &orig_dn, &scope );
1149
1150                 if( srv->lud_scope != LDAP_SCOPE_DEFAULT ) {
1151                         /* use the scope provided in reference */
1152                         scope = srv->lud_scope;
1153
1154                 } else if ( sref ) {
1155                         /* use scope implied by previous operation
1156                          *   base -> base
1157                          *   one -> base
1158                          *   subtree -> subtree
1159                          *   subordinate -> subtree
1160                          */
1161                         switch( scope ) {
1162                         default:
1163                         case LDAP_SCOPE_BASE:
1164                         case LDAP_SCOPE_ONELEVEL:
1165                                 scope = LDAP_SCOPE_BASE;
1166                                 break;
1167                         case LDAP_SCOPE_SUBTREE:
1168 #ifdef LDAP_SCOPE_SUBORDINATE
1169                         case LDAP_SCOPE_SUBORDINATE:
1170 #endif
1171                                 scope = LDAP_SCOPE_SUBTREE;
1172                                 break;
1173                         }
1174                 }
1175
1176         } else {
1177                 rtag = ber_scanf( &tmpber, "{a" /*}*/, &orig_dn );
1178         }
1179
1180         if( rtag == LBER_ERROR ) {
1181                 ld->ld_errno = LDAP_DECODING_ERROR;
1182                 return NULL;
1183         }
1184
1185         if (( ber = ldap_alloc_ber_with_options( ld )) == NULL ) {
1186                 return NULL;
1187         }
1188
1189         if ( srv->lud_dn == NULL ) {
1190                 dn = orig_dn;
1191         } else {
1192                 dn = srv->lud_dn;
1193         }
1194
1195         if ( tag == LDAP_REQ_BIND ) {
1196                 rc = ber_printf( ber, "{it{is" /*}}*/, msgid, tag, ver, dn );
1197         } else if ( tag == LDAP_REQ_DELETE ) {
1198                 rc = ber_printf( ber, "{itsN}", msgid, tag, dn );
1199         } else if ( tag == LDAP_REQ_SEARCH ) {
1200                 rc = ber_printf( ber, "{it{se" /*}}*/, msgid, tag, dn, scope );
1201         } else {
1202                 rc = ber_printf( ber, "{it{s" /*}}*/, msgid, tag, dn );
1203         }
1204
1205         LDAP_FREE( orig_dn );
1206
1207         if ( rc == -1 ) {
1208                 ld->ld_errno = LDAP_ENCODING_ERROR;
1209                 ber_free( ber, 1 );
1210                 return NULL;
1211         }
1212
1213         if ( tag != LDAP_REQ_DELETE && (
1214                 ber_write(ber, tmpber.ber_ptr, ( tmpber.ber_end - tmpber.ber_ptr ), 0)
1215                 != ( tmpber.ber_end - tmpber.ber_ptr ) ||
1216             ber_printf( ber, /*{{*/ "N}N}" ) == -1 ) )
1217         {
1218                 ld->ld_errno = LDAP_ENCODING_ERROR;
1219                 ber_free( ber, 1 );
1220                 return NULL;
1221         }
1222
1223 #ifdef LDAP_DEBUG
1224         if ( ldap_debug & LDAP_DEBUG_PACKETS ) {
1225                 Debug( LDAP_DEBUG_ANY, "re_encode_request new request is:\n",
1226                     0, 0, 0 );
1227                 ber_log_dump( LDAP_DEBUG_BER, ldap_debug, ber, 0 );
1228         }
1229 #endif /* LDAP_DEBUG */
1230
1231         *type = tag;    /* return request type */
1232         return ber;
1233 }
1234
1235
1236 LDAPRequest *
1237 ldap_find_request_by_msgid( LDAP *ld, ber_int_t msgid )
1238 {
1239         LDAPRequest     *lr;
1240
1241 #ifdef LDAP_R_COMPILE
1242         ldap_pvt_thread_mutex_lock( &ld->ld_req_mutex );
1243 #endif
1244         for ( lr = ld->ld_requests; lr != NULL; lr = lr->lr_next ) {
1245                 if( lr->lr_status == LDAP_REQST_COMPLETED ) {
1246                         continue;       /* Skip completed requests */
1247                 }
1248                 if ( msgid == lr->lr_msgid ) {
1249                         break;
1250                 }
1251         }
1252 #ifdef LDAP_R_COMPILE
1253         ldap_pvt_thread_mutex_unlock( &ld->ld_req_mutex );
1254 #endif
1255
1256         return( lr );
1257 }
1258
1259