2 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
4 * Copyright 1998-2014 The OpenLDAP Foundation.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted only as authorized by the OpenLDAP
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>.
15 /* Portions Copyright (c) 1995 Regents of the University of Michigan.
16 * All rights reserved.
18 /* This notice applies to changes, created by or for Novell, Inc.,
19 * to preexisting works for which notices appear elsewhere in this file.
21 * Copyright (C) 1999, 2000 Novell, Inc. All Rights Reserved.
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.
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
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.
45 #include <ac/stdlib.h>
48 #include <ac/socket.h>
49 #include <ac/string.h>
51 #include <ac/unistd.h>
56 /* used by ldap_send_server_request and ldap_new_connection */
58 #define LDAP_CONN_LOCK_IF(nolock) \
59 { if (nolock) LDAP_MUTEX_LOCK( &ld->ld_conn_mutex ); }
60 #define LDAP_CONN_UNLOCK_IF(nolock) \
61 { if (nolock) LDAP_MUTEX_UNLOCK( &ld->ld_conn_mutex ); }
62 #define LDAP_REQ_LOCK_IF(nolock) \
63 { if (nolock) LDAP_MUTEX_LOCK( &ld->ld_req_mutex ); }
64 #define LDAP_REQ_UNLOCK_IF(nolock) \
65 { if (nolock) LDAP_MUTEX_UNLOCK( &ld->ld_req_mutex ); }
66 #define LDAP_RES_LOCK_IF(nolock) \
67 { if (nolock) LDAP_MUTEX_LOCK( &ld->ld_res_mutex ); }
68 #define LDAP_RES_UNLOCK_IF(nolock) \
69 { if (nolock) LDAP_MUTEX_UNLOCK( &ld->ld_res_mutex ); }
71 #define LDAP_CONN_LOCK_IF(nolock)
72 #define LDAP_CONN_UNLOCK_IF(nolock)
73 #define LDAP_REQ_LOCK_IF(nolock)
74 #define LDAP_REQ_UNLOCK_IF(nolock)
75 #define LDAP_RES_LOCK_IF(nolock)
76 #define LDAP_RES_UNLOCK_IF(nolock)
79 static LDAPConn *find_connection LDAP_P(( LDAP *ld, LDAPURLDesc *srv, int any ));
80 static void use_connection LDAP_P(( LDAP *ld, LDAPConn *lc ));
81 static void ldap_free_request_int LDAP_P(( LDAP *ld, LDAPRequest *lr ));
84 re_encode_request( LDAP *ld,
92 ldap_alloc_ber_with_options( LDAP *ld )
96 ber = ber_alloc_t( ld->ld_lberoptions );
98 ld->ld_errno = LDAP_NO_MEMORY;
106 ldap_set_ber_options( LDAP *ld, BerElement *ber )
108 /* ld_lberoptions is constant, hence no lock */
109 ber->ber_options = ld->ld_lberoptions;
113 /* sets needed mutexes - no mutexes set to this point */
115 ldap_send_initial_request(
123 ber_socket_t sd = AC_SOCKET_INVALID;
125 Debug( LDAP_DEBUG_TRACE, "ldap_send_initial_request\n", 0, 0, 0 );
127 LDAP_MUTEX_LOCK( &ld->ld_conn_mutex );
128 if ( ber_sockbuf_ctrl( ld->ld_sb, LBER_SB_OPT_GET_FD, &sd ) == -1 ) {
129 /* not connected yet */
130 rc = ldap_open_defconn( ld );
133 if ( ld->ld_defconn && ld->ld_defconn->lconn_status == LDAP_CONNST_CONNECTING )
134 rc = ldap_int_check_async_open( ld, sd );
137 LDAP_MUTEX_UNLOCK( &ld->ld_conn_mutex );
139 } else if ( rc == 0 ) {
140 Debug( LDAP_DEBUG_TRACE,
141 "ldap_open_defconn: successful\n",
145 #ifdef LDAP_CONNECTIONLESS
146 if (LDAP_IS_UDP(ld)) {
147 if (msgtype == LDAP_REQ_BIND) {
148 LDAP_MUTEX_LOCK( &ld->ld_options.ldo_mutex );
149 if (ld->ld_options.ldo_cldapdn)
150 ldap_memfree(ld->ld_options.ldo_cldapdn);
151 ld->ld_options.ldo_cldapdn = ldap_strdup(dn);
153 LDAP_MUTEX_UNLOCK( &ld->ld_options.ldo_mutex );
154 LDAP_MUTEX_UNLOCK( &ld->ld_conn_mutex );
157 if (msgtype != LDAP_REQ_ABANDON && msgtype != LDAP_REQ_SEARCH)
160 LDAP_MUTEX_UNLOCK( &ld->ld_conn_mutex );
161 return LDAP_PARAM_ERROR;
165 LDAP_MUTEX_LOCK( &ld->ld_req_mutex );
166 rc = ldap_send_server_request( ld, ber, msgid, NULL,
167 NULL, NULL, NULL, 0, 0 );
168 LDAP_MUTEX_UNLOCK( &ld->ld_req_mutex );
169 LDAP_MUTEX_UNLOCK( &ld->ld_conn_mutex );
174 /* protected by conn_mutex */
176 ldap_int_flush_request(
180 LDAPConn *lc = lr->lr_conn;
182 LDAP_ASSERT_MUTEX_OWNER( &ld->ld_conn_mutex );
183 if ( ber_flush2( lc->lconn_sb, lr->lr_ber, LBER_FLUSH_FREE_NEVER ) != 0 ) {
184 if ( sock_errno() == EAGAIN ) {
185 /* need to continue write later */
186 lr->lr_status = LDAP_REQST_WRITING;
187 ldap_mark_select_write( ld, lc->lconn_sb );
188 ld->ld_errno = LDAP_BUSY;
191 ld->ld_errno = LDAP_SERVER_DOWN;
192 ldap_free_request( ld, lr );
193 ldap_free_connection( ld, lc, 0, 0 );
197 if ( lr->lr_parent == NULL ) {
198 lr->lr_ber->ber_end = lr->lr_ber->ber_ptr;
199 lr->lr_ber->ber_ptr = lr->lr_ber->ber_buf;
201 lr->lr_status = LDAP_REQST_INPROGRESS;
203 /* sent -- waiting for a response */
204 ldap_mark_select_read( ld, lc->lconn_sb );
205 ldap_clear_select_write( ld, lc->lconn_sb );
211 * protected by req_mutex
212 * if m_noconn then protect using conn_lock
213 * else already protected with conn_lock
214 * if m_res then also protected by res_mutex
218 ldap_send_server_request(
222 LDAPRequest *parentreq,
223 LDAPURLDesc **srvlist,
232 LDAP_ASSERT_MUTEX_OWNER( &ld->ld_req_mutex );
233 Debug( LDAP_DEBUG_TRACE, "ldap_send_server_request\n", 0, 0, 0 );
236 ld->ld_errno = LDAP_SUCCESS; /* optimistic */
238 LDAP_CONN_LOCK_IF(m_noconn);
240 if ( srvlist == NULL ) {
243 lc = find_connection( ld, *srvlist, 1 );
245 if ( (bind != NULL) && (parentreq != NULL) ) {
246 /* Remember the bind in the parent */
248 ++parentreq->lr_outrefcnt;
250 lc = ldap_new_connection( ld, srvlist, 0,
256 /* async connect... */
257 if ( lc != NULL && lc->lconn_status == LDAP_CONNST_CONNECTING ) {
258 ber_socket_t sd = AC_SOCKET_ERROR;
259 struct timeval tv = { 0 };
261 ber_sockbuf_ctrl( lc->lconn_sb, LBER_SB_OPT_GET_FD, &sd );
264 switch ( ldap_int_poll( ld, sd, &tv, 1 ) ) {
267 lc->lconn_status = LDAP_CONNST_CONNECTED;
271 /* async only occurs if a network timeout is set */
273 /* honor network timeout */
274 LDAP_MUTEX_LOCK( &ld->ld_options.ldo_mutex );
275 if ( time( NULL ) - lc->lconn_created <= ld->ld_options.ldo_tm_net.tv_sec )
277 /* caller will have to call again */
278 ld->ld_errno = LDAP_X_CONNECTING;
280 LDAP_MUTEX_UNLOCK( &ld->ld_options.ldo_mutex );
289 if ( lc == NULL || lc->lconn_status != LDAP_CONNST_CONNECTED ) {
290 if ( ld->ld_errno == LDAP_SUCCESS ) {
291 ld->ld_errno = LDAP_SERVER_DOWN;
296 /* Forget about the bind */
297 --parentreq->lr_outrefcnt;
299 LDAP_CONN_UNLOCK_IF(m_noconn);
303 use_connection( ld, lc );
305 #ifdef LDAP_CONNECTIONLESS
306 if ( LDAP_IS_UDP( ld )) {
307 BerElement tmpber = *ber;
308 ber_rewind( &tmpber );
309 LDAP_MUTEX_LOCK( &ld->ld_options.ldo_mutex );
310 rc = ber_write( &tmpber, ld->ld_options.ldo_peer,
311 sizeof( struct sockaddr_storage ), 0 );
312 LDAP_MUTEX_UNLOCK( &ld->ld_options.ldo_mutex );
314 ld->ld_errno = LDAP_ENCODING_ERROR;
315 LDAP_CONN_UNLOCK_IF(m_noconn);
321 /* If we still have an incomplete write, try to finish it before
322 * dealing with the new request. If we don't finish here, return
323 * LDAP_BUSY and let the caller retry later. We only allow a single
324 * request to be in WRITING state.
327 if ( ld->ld_requests &&
328 ld->ld_requests->lr_status == LDAP_REQST_WRITING &&
329 ldap_int_flush_request( ld, ld->ld_requests ) < 0 )
334 LDAP_CONN_UNLOCK_IF(m_noconn);
338 lr = (LDAPRequest *)LDAP_CALLOC( 1, sizeof( LDAPRequest ) );
340 ld->ld_errno = LDAP_NO_MEMORY;
341 ldap_free_connection( ld, lc, 0, 0 );
344 /* Forget about the bind */
345 --parentreq->lr_outrefcnt;
347 LDAP_CONN_UNLOCK_IF(m_noconn);
350 lr->lr_msgid = msgid;
351 lr->lr_status = LDAP_REQST_INPROGRESS;
352 lr->lr_res_errno = LDAP_SUCCESS; /* optimistic */
355 if ( parentreq != NULL ) { /* sub-request */
357 /* Increment if we didn't do it before the bind */
358 ++parentreq->lr_outrefcnt;
360 lr->lr_origid = parentreq->lr_origid;
361 lr->lr_parentcnt = ++parentreq->lr_parentcnt;
362 lr->lr_parent = parentreq;
363 lr->lr_refnext = parentreq->lr_child;
364 parentreq->lr_child = lr;
365 } else { /* original request */
366 lr->lr_origid = lr->lr_msgid;
369 /* Extract requestDN for future reference */
370 #ifdef LDAP_CONNECTIONLESS
371 if ( !LDAP_IS_UDP(ld) )
374 BerElement tmpber = *ber;
378 ber_reset( &tmpber, 1 );
379 rtag = ber_scanf( &tmpber, "{it", /*}*/ &bint, &tag );
382 rtag = ber_scanf( &tmpber, "{i" /*}*/, &bint );
384 case LDAP_REQ_DELETE:
387 rtag = ber_scanf( &tmpber, "{" /*}*/ );
388 case LDAP_REQ_ABANDON:
391 if ( tag != LDAP_REQ_ABANDON ) {
392 ber_skip_tag( &tmpber, &lr->lr_dn.bv_len );
393 lr->lr_dn.bv_val = tmpber.ber_ptr;
398 lr->lr_next = ld->ld_requests;
399 if ( lr->lr_next != NULL ) {
400 lr->lr_next->lr_prev = lr;
402 ld->ld_requests = lr;
404 ld->ld_errno = LDAP_SUCCESS;
405 if ( ldap_int_flush_request( ld, lr ) == -1 ) {
409 LDAP_CONN_UNLOCK_IF(m_noconn);
413 /* return 0 if no StartTLS ext, 1 if present, 2 if critical */
415 find_tls_ext( LDAPURLDesc *srv )
420 if ( !srv->lud_exts )
423 for (i=0; srv->lud_exts[i]; i++) {
425 ext = srv->lud_exts[i];
426 if ( ext[0] == '!') {
430 if ( !strcasecmp( ext, "StartTLS" ) ||
431 !strcasecmp( ext, "X-StartTLS" ) ||
432 !strcmp( ext, LDAP_EXOP_START_TLS )) {
440 * always protected by conn_mutex
441 * optionally protected by req_mutex and res_mutex
444 ldap_new_connection( LDAP *ld, LDAPURLDesc **srvlist, int use_ldsb,
445 int connect, LDAPreqinfo *bind, int m_req, int m_res )
450 LDAP_ASSERT_MUTEX_OWNER( &ld->ld_conn_mutex );
451 Debug( LDAP_DEBUG_TRACE, "ldap_new_connection %d %d %d\n",
452 use_ldsb, connect, (bind != NULL) );
454 * make a new LDAP server connection
455 * XXX open connection synchronously for now
457 lc = (LDAPConn *)LDAP_CALLOC( 1, sizeof( LDAPConn ) );
459 ld->ld_errno = LDAP_NO_MEMORY;
464 assert( ld->ld_sb != NULL );
465 lc->lconn_sb = ld->ld_sb;
468 lc->lconn_sb = ber_sockbuf_alloc();
469 if ( lc->lconn_sb == NULL ) {
470 LDAP_FREE( (char *)lc );
471 ld->ld_errno = LDAP_NO_MEMORY;
477 LDAPURLDesc **srvp, *srv = NULL;
479 async = LDAP_BOOL_GET( &ld->ld_options, LDAP_BOOL_CONNECT_ASYNC );
481 for ( srvp = srvlist; *srvp != NULL; srvp = &(*srvp)->lud_next ) {
484 rc = ldap_int_open_connection( ld, lc, *srvp, async );
488 /* If we fully connected, async is moot */
492 if ( ld->ld_urllist_proc && ( !async || rc != -2 ) ) {
493 ld->ld_urllist_proc( ld, srvlist, srvp, ld->ld_urllist_params );
502 ber_sockbuf_free( lc->lconn_sb );
504 LDAP_FREE( (char *)lc );
505 ld->ld_errno = LDAP_SERVER_DOWN;
509 lc->lconn_server = ldap_url_dup( srv );
512 lc->lconn_status = async ? LDAP_CONNST_CONNECTING : LDAP_CONNST_CONNECTED;
513 lc->lconn_next = ld->ld_conns;
518 if ( lc->lconn_server->lud_exts ) {
519 int rc, ext = find_tls_ext( lc->lconn_server );
521 LDAPConn *savedefconn;
523 savedefconn = ld->ld_defconn;
524 ++lc->lconn_refcnt; /* avoid premature free */
527 LDAP_REQ_UNLOCK_IF(m_req);
528 LDAP_MUTEX_UNLOCK( &ld->ld_conn_mutex );
529 LDAP_RES_UNLOCK_IF(m_res);
530 rc = ldap_start_tls_s( ld, NULL, NULL );
531 LDAP_RES_LOCK_IF(m_res);
532 LDAP_MUTEX_LOCK( &ld->ld_conn_mutex );
533 LDAP_REQ_LOCK_IF(m_req);
534 ld->ld_defconn = savedefconn;
537 if ( rc != LDAP_SUCCESS && ext == 2 ) {
538 ldap_free_connection( ld, lc, 1, 0 );
546 if ( bind != NULL ) {
548 LDAPConn *savedefconn;
550 /* Set flag to prevent additional referrals
551 * from being processed on this
552 * connection until the bind has completed
554 lc->lconn_rebind_inprogress = 1;
555 /* V3 rebind function */
556 if ( ld->ld_rebind_proc != NULL) {
557 LDAPURLDesc *srvfunc;
559 srvfunc = ldap_url_dup( *srvlist );
560 if ( srvfunc == NULL ) {
561 ld->ld_errno = LDAP_NO_MEMORY;
564 savedefconn = ld->ld_defconn;
565 ++lc->lconn_refcnt; /* avoid premature free */
568 Debug( LDAP_DEBUG_TRACE, "Call application rebind_proc\n", 0, 0, 0);
569 LDAP_REQ_UNLOCK_IF(m_req);
570 LDAP_MUTEX_UNLOCK( &ld->ld_conn_mutex );
571 LDAP_RES_UNLOCK_IF(m_res);
572 err = (*ld->ld_rebind_proc)( ld,
573 bind->ri_url, bind->ri_request, bind->ri_msgid,
574 ld->ld_rebind_params );
575 LDAP_RES_LOCK_IF(m_res);
576 LDAP_MUTEX_LOCK( &ld->ld_conn_mutex );
577 LDAP_REQ_LOCK_IF(m_req);
579 ld->ld_defconn = savedefconn;
584 ldap_free_connection( ld, lc, 1, 0 );
587 ldap_free_urldesc( srvfunc );
592 struct berval passwd = BER_BVNULL;
594 savedefconn = ld->ld_defconn;
595 ++lc->lconn_refcnt; /* avoid premature free */
598 Debug( LDAP_DEBUG_TRACE,
599 "anonymous rebind via ldap_sasl_bind(\"\")\n",
602 LDAP_REQ_UNLOCK_IF(m_req);
603 LDAP_MUTEX_UNLOCK( &ld->ld_conn_mutex );
604 LDAP_RES_UNLOCK_IF(m_res);
605 rc = ldap_sasl_bind( ld, "", LDAP_SASL_SIMPLE, &passwd,
606 NULL, NULL, &msgid );
607 if ( rc != LDAP_SUCCESS ) {
611 for ( err = 1; err > 0; ) {
612 struct timeval tv = { 0, 100000 };
613 LDAPMessage *res = NULL;
615 switch ( ldap_result( ld, msgid, LDAP_MSG_ALL, &tv, &res ) ) {
621 #ifdef LDAP_R_COMPILE
622 ldap_pvt_thread_yield();
627 rc = ldap_parse_result( ld, res, &err, NULL, NULL, NULL, NULL, 1 );
628 if ( rc != LDAP_SUCCESS ) {
631 } else if ( err != LDAP_SUCCESS ) {
634 /* else err == LDAP_SUCCESS == 0 */
638 Debug( LDAP_DEBUG_TRACE,
639 "ldap_new_connection %p: "
640 "unexpected response %d "
641 "from BIND request id=%d\n",
642 (void *) ld, ldap_msgtype( res ), msgid );
648 LDAP_RES_LOCK_IF(m_res);
649 LDAP_MUTEX_LOCK( &ld->ld_conn_mutex );
650 LDAP_REQ_LOCK_IF(m_req);
651 ld->ld_defconn = savedefconn;
655 ldap_free_connection( ld, lc, 1, 0 );
660 lc->lconn_rebind_inprogress = 0;
666 /* protected by ld_conn_mutex */
668 find_connection( LDAP *ld, LDAPURLDesc *srv, int any )
670 * return an existing connection (if any) to the server srv
671 * if "any" is non-zero, check for any server in the "srv" chain
675 LDAPURLDesc *lcu, *lsu;
676 int lcu_port, lsu_port;
679 LDAP_ASSERT_MUTEX_OWNER( &ld->ld_conn_mutex );
680 for ( lc = ld->ld_conns; lc != NULL; lc = lc->lconn_next ) {
681 lcu = lc->lconn_server;
682 lcu_port = ldap_pvt_url_scheme_port( lcu->lud_scheme,
685 for ( lsu = srv; lsu != NULL; lsu = lsu->lud_next ) {
686 lsu_port = ldap_pvt_url_scheme_port( lsu->lud_scheme,
689 if ( lsu_port == lcu_port
690 && strcmp( lcu->lud_scheme, lsu->lud_scheme ) == 0
691 && lcu->lud_host != NULL && lsu->lud_host != NULL
692 && strcasecmp( lsu->lud_host, lcu->lud_host ) == 0 )
708 /* protected by ld_conn_mutex */
710 use_connection( LDAP *ld, LDAPConn *lc )
712 LDAP_ASSERT_MUTEX_OWNER( &ld->ld_conn_mutex );
714 lc->lconn_lastused = time( NULL );
718 /* protected by ld_conn_mutex */
720 ldap_free_connection( LDAP *ld, LDAPConn *lc, int force, int unbind )
722 LDAPConn *tmplc, *prevlc;
724 LDAP_ASSERT_MUTEX_OWNER( &ld->ld_conn_mutex );
725 Debug( LDAP_DEBUG_TRACE,
726 "ldap_free_connection %d %d\n",
729 if ( force || --lc->lconn_refcnt <= 0 ) {
730 /* remove from connections list first */
732 for ( prevlc = NULL, tmplc = ld->ld_conns;
734 tmplc = tmplc->lconn_next )
737 if ( prevlc == NULL ) {
738 ld->ld_conns = tmplc->lconn_next;
740 prevlc->lconn_next = tmplc->lconn_next;
742 if ( ld->ld_defconn == lc ) {
743 ld->ld_defconn = NULL;
750 /* process connection callbacks */
752 struct ldapoptions *lo;
756 lo = &ld->ld_options;
757 LDAP_MUTEX_LOCK( &lo->ldo_mutex );
758 if ( lo->ldo_conn_cbs ) {
759 for ( ll=lo->ldo_conn_cbs; ll; ll=ll->ll_next ) {
761 cb->lc_del( ld, lc->lconn_sb, cb );
764 LDAP_MUTEX_UNLOCK( &lo->ldo_mutex );
765 lo = LDAP_INT_GLOBAL_OPT();
766 LDAP_MUTEX_LOCK( &lo->ldo_mutex );
767 if ( lo->ldo_conn_cbs ) {
768 for ( ll=lo->ldo_conn_cbs; ll; ll=ll->ll_next ) {
770 cb->lc_del( ld, lc->lconn_sb, cb );
773 LDAP_MUTEX_UNLOCK( &lo->ldo_mutex );
776 if ( lc->lconn_status == LDAP_CONNST_CONNECTED ) {
777 ldap_mark_select_clear( ld, lc->lconn_sb );
779 ldap_send_unbind( ld, lc->lconn_sb,
784 if ( lc->lconn_ber != NULL ) {
785 ber_free( lc->lconn_ber, 1 );
788 ldap_int_sasl_close( ld, lc );
790 ldap_int_gssapi_close( ld, lc );
793 ldap_free_urllist( lc->lconn_server );
795 /* FIXME: is this at all possible?
796 * ldap_ld_free() in unbind.c calls ldap_free_connection()
797 * with force == 1 __after__ explicitly calling
798 * ldap_free_request() on all requests */
802 for ( lr = ld->ld_requests; lr; ) {
803 LDAPRequest *lr_next = lr->lr_next;
805 if ( lr->lr_conn == lc ) {
806 ldap_free_request_int( ld, lr );
813 if ( lc->lconn_sb != ld->ld_sb ) {
814 ber_sockbuf_free( lc->lconn_sb );
816 ber_int_sb_close( lc->lconn_sb );
819 if ( lc->lconn_rebind_queue != NULL) {
821 for( i = 0; lc->lconn_rebind_queue[i] != NULL; i++ ) {
822 LDAP_VFREE( lc->lconn_rebind_queue[i] );
824 LDAP_FREE( lc->lconn_rebind_queue );
829 Debug( LDAP_DEBUG_TRACE,
830 "ldap_free_connection: actually freed\n",
834 lc->lconn_lastused = time( NULL );
835 Debug( LDAP_DEBUG_TRACE, "ldap_free_connection: refcnt %d\n",
836 lc->lconn_refcnt, 0, 0 );
841 /* Protects self with ld_conn_mutex */
844 ldap_dump_connection( LDAP *ld, LDAPConn *lconns, int all )
849 Debug( LDAP_DEBUG_TRACE, "** ld %p Connection%s:\n", (void *)ld, all ? "s" : "", 0 );
850 LDAP_MUTEX_LOCK( &ld->ld_conn_mutex );
851 for ( lc = lconns; lc != NULL; lc = lc->lconn_next ) {
852 if ( lc->lconn_server != NULL ) {
853 Debug( LDAP_DEBUG_TRACE, "* host: %s port: %d%s\n",
854 ( lc->lconn_server->lud_host == NULL ) ? "(null)"
855 : lc->lconn_server->lud_host,
856 lc->lconn_server->lud_port, ( lc->lconn_sb ==
857 ld->ld_sb ) ? " (default)" : "" );
859 Debug( LDAP_DEBUG_TRACE, " refcnt: %d status: %s\n", lc->lconn_refcnt,
860 ( lc->lconn_status == LDAP_CONNST_NEEDSOCKET )
862 ( lc->lconn_status == LDAP_CONNST_CONNECTING )
863 ? "Connecting" : "Connected", 0 );
864 Debug( LDAP_DEBUG_TRACE, " last used: %s%s\n",
865 ldap_pvt_ctime( &lc->lconn_lastused, timebuf ),
866 lc->lconn_rebind_inprogress ? " rebind in progress" : "", 0 );
867 if ( lc->lconn_rebind_inprogress ) {
868 if ( lc->lconn_rebind_queue != NULL) {
871 for ( i = 0; lc->lconn_rebind_queue[i] != NULL; i++ ) {
873 for( j = 0; lc->lconn_rebind_queue[i][j] != 0; j++ ) {
874 Debug( LDAP_DEBUG_TRACE, " queue %d entry %d - %s\n",
875 i, j, lc->lconn_rebind_queue[i][j] );
879 Debug( LDAP_DEBUG_TRACE, " queue is empty\n", 0, 0, 0 );
882 Debug( LDAP_DEBUG_TRACE, "\n", 0, 0, 0 );
887 LDAP_MUTEX_UNLOCK( &ld->ld_conn_mutex );
891 /* protected by req_mutex and res_mutex */
893 ldap_dump_requests_and_responses( LDAP *ld )
899 Debug( LDAP_DEBUG_TRACE, "** ld %p Outstanding Requests:\n",
901 lr = ld->ld_requests;
903 Debug( LDAP_DEBUG_TRACE, " Empty\n", 0, 0, 0 );
905 for ( i = 0; lr != NULL; lr = lr->lr_next, i++ ) {
906 Debug( LDAP_DEBUG_TRACE, " * msgid %d, origid %d, status %s\n",
907 lr->lr_msgid, lr->lr_origid,
908 ( lr->lr_status == LDAP_REQST_INPROGRESS ) ? "InProgress" :
909 ( lr->lr_status == LDAP_REQST_CHASINGREFS ) ? "ChasingRefs" :
910 ( lr->lr_status == LDAP_REQST_NOTCONNECTED ) ? "NotConnected" :
911 ( lr->lr_status == LDAP_REQST_WRITING ) ? "Writing" :
912 ( lr->lr_status == LDAP_REQST_COMPLETED ) ? "RequestCompleted"
914 Debug( LDAP_DEBUG_TRACE, " outstanding referrals %d, parent count %d\n",
915 lr->lr_outrefcnt, lr->lr_parentcnt, 0 );
917 Debug( LDAP_DEBUG_TRACE, " ld %p request count %d (abandoned %lu)\n",
918 (void *)ld, i, ld->ld_nabandoned );
919 Debug( LDAP_DEBUG_TRACE, "** ld %p Response Queue:\n", (void *)ld, 0, 0 );
920 if ( ( lm = ld->ld_responses ) == NULL ) {
921 Debug( LDAP_DEBUG_TRACE, " Empty\n", 0, 0, 0 );
923 for ( i = 0; lm != NULL; lm = lm->lm_next, i++ ) {
924 Debug( LDAP_DEBUG_TRACE, " * msgid %d, type %lu\n",
925 lm->lm_msgid, (unsigned long)lm->lm_msgtype, 0 );
926 if ( lm->lm_chain != NULL ) {
927 Debug( LDAP_DEBUG_TRACE, " chained responses:\n", 0, 0, 0 );
928 for ( l = lm->lm_chain; l != NULL; l = l->lm_chain ) {
929 Debug( LDAP_DEBUG_TRACE,
930 " * msgid %d, type %lu\n",
932 (unsigned long)l->lm_msgtype, 0 );
936 Debug( LDAP_DEBUG_TRACE, " ld %p response count %d\n", (void *)ld, i, 0 );
938 #endif /* LDAP_DEBUG */
940 /* protected by req_mutex */
942 ldap_free_request_int( LDAP *ld, LDAPRequest *lr )
944 LDAP_ASSERT_MUTEX_OWNER( &ld->ld_req_mutex );
945 /* if lr_refcnt > 0, the request has been looked up
946 * by ldap_find_request_by_msgid(); if in the meanwhile
947 * the request is free()'d by someone else, just decrease
948 * the reference count and extract it from the request
949 * list; later on, it will be freed. */
950 if ( lr->lr_prev == NULL ) {
951 if ( lr->lr_refcnt == 0 ) {
952 /* free'ing the first request? */
953 assert( ld->ld_requests == lr );
956 if ( ld->ld_requests == lr ) {
957 ld->ld_requests = lr->lr_next;
961 lr->lr_prev->lr_next = lr->lr_next;
964 if ( lr->lr_next != NULL ) {
965 lr->lr_next->lr_prev = lr->lr_prev;
968 if ( lr->lr_refcnt > 0 ) {
969 lr->lr_refcnt = -lr->lr_refcnt;
977 if ( lr->lr_ber != NULL ) {
978 ber_free( lr->lr_ber, 1 );
982 if ( lr->lr_res_error != NULL ) {
983 LDAP_FREE( lr->lr_res_error );
984 lr->lr_res_error = NULL;
987 if ( lr->lr_res_matched != NULL ) {
988 LDAP_FREE( lr->lr_res_matched );
989 lr->lr_res_matched = NULL;
995 /* protected by req_mutex */
997 ldap_free_request( LDAP *ld, LDAPRequest *lr )
999 LDAP_ASSERT_MUTEX_OWNER( &ld->ld_req_mutex );
1000 Debug( LDAP_DEBUG_TRACE, "ldap_free_request (origid %d, msgid %d)\n",
1001 lr->lr_origid, lr->lr_msgid, 0 );
1003 /* free all referrals (child requests) */
1004 while ( lr->lr_child ) {
1005 ldap_free_request( ld, lr->lr_child );
1008 if ( lr->lr_parent != NULL ) {
1011 --lr->lr_parent->lr_outrefcnt;
1012 for ( lrp = &lr->lr_parent->lr_child;
1014 lrp = &(*lrp)->lr_refnext );
1017 *lrp = lr->lr_refnext;
1020 ldap_free_request_int( ld, lr );
1024 * call first time with *cntp = -1
1025 * when returns *cntp == -1, no referrals are left
1027 * NOTE: may replace *refsp, or shuffle the contents
1028 * of the original array.
1030 static int ldap_int_nextref(
1036 assert( refsp != NULL );
1037 assert( *refsp != NULL );
1038 assert( cntp != NULL );
1047 if ( (*refsp)[ *cntp ] == NULL ) {
1055 * Chase v3 referrals
1058 * (IN) ld = LDAP connection handle
1059 * (IN) lr = LDAP Request structure
1060 * (IN) refs = array of pointers to referral strings that we will chase
1061 * The array will be free'd by this function when no longer needed
1062 * (IN) sref != 0 if following search reference
1063 * (OUT) errstrp = Place to return a string of referrals which could not be followed
1064 * (OUT) hadrefp = 1 if sucessfully followed referral
1066 * Return value - number of referrals followed
1068 * Protected by res_mutex, conn_mutex and req_mutex (try_read1msg)
1071 ldap_chase_v3referrals( LDAP *ld, LDAPRequest *lr, char **refs, int sref, char **errstrp, int *hadrefp )
1074 int unfollowedcnt = 0;
1075 LDAPRequest *origreq;
1076 LDAPURLDesc *srv = NULL;
1078 char **refarray = NULL;
1080 int rc, count, i, j, id;
1082 LDAP_NEXTREF_PROC *nextref_proc = ld->ld_nextref_proc ? ld->ld_nextref_proc : ldap_int_nextref;
1084 LDAP_ASSERT_MUTEX_OWNER( &ld->ld_res_mutex );
1085 LDAP_ASSERT_MUTEX_OWNER( &ld->ld_conn_mutex );
1086 LDAP_ASSERT_MUTEX_OWNER( &ld->ld_req_mutex );
1087 Debug( LDAP_DEBUG_TRACE, "ldap_chase_v3referrals\n", 0, 0, 0 );
1089 ld->ld_errno = LDAP_SUCCESS; /* optimistic */
1095 /* If no referrals in array, return */
1096 if ( (refs == NULL) || ( (refs)[0] == NULL) ) {
1101 /* Check for hop limit exceeded */
1102 if ( lr->lr_parentcnt >= ld->ld_refhoplimit ) {
1103 Debug( LDAP_DEBUG_ANY,
1104 "more than %d referral hops (dropping)\n", ld->ld_refhoplimit, 0, 0 );
1105 ld->ld_errno = LDAP_REFERRAL_LIMIT_EXCEEDED;
1110 /* find original request */
1112 origreq->lr_parent != NULL;
1113 origreq = origreq->lr_parent )
1121 /* parse out & follow referrals */
1122 /* NOTE: if nextref_proc == ldap_int_nextref, params is ignored */
1124 for ( nextref_proc( ld, &refarray, &i, ld->ld_nextref_params );
1126 nextref_proc( ld, &refarray, &i, ld->ld_nextref_params ) )
1129 /* Parse the referral URL */
1130 rc = ldap_url_parse_ext( refarray[i], &srv, LDAP_PVT_URL_PARSE_NOEMPTY_DN );
1131 if ( rc != LDAP_URL_SUCCESS ) {
1132 /* ldap_url_parse_ext() returns LDAP_URL_* errors
1133 * which do not map on API errors */
1134 ld->ld_errno = LDAP_PARAM_ERROR;
1139 if( srv->lud_crit_exts ) {
1142 /* If StartTLS is the only critical ext, OK. */
1143 if ( find_tls_ext( srv ) == 2 && srv->lud_crit_exts == 1 )
1147 /* we do not support any other extensions */
1148 ld->ld_errno = LDAP_NOT_SUPPORTED;
1154 /* check connection for re-bind in progress */
1155 if (( lc = find_connection( ld, srv, 1 )) != NULL ) {
1156 /* See if we've already requested this DN with this conn */
1159 ber_len_t len = srv->lud_dn ? strlen( srv->lud_dn ) : 0;
1160 for ( lp = origreq; lp; ) {
1161 if ( lp->lr_conn == lc
1162 && len == lp->lr_dn.bv_len
1164 && strncmp( srv->lud_dn, lp->lr_dn.bv_val, len ) == 0 )
1169 if ( lp == origreq ) {
1172 lp = lp->lr_refnext;
1176 ldap_free_urllist( srv );
1178 ld->ld_errno = LDAP_CLIENT_LOOP;
1183 if ( lc->lconn_rebind_inprogress ) {
1184 /* We are already chasing a referral or search reference and a
1185 * bind on that connection is in progress. We must queue
1186 * referrals on that connection, so we don't get a request
1187 * going out before the bind operation completes. This happens
1188 * if two search references come in one behind the other
1189 * for the same server with different contexts.
1191 Debug( LDAP_DEBUG_TRACE,
1192 "ldap_chase_v3referrals: queue referral \"%s\"\n",
1194 if( lc->lconn_rebind_queue == NULL ) {
1195 /* Create a referral list */
1196 lc->lconn_rebind_queue =
1197 (char ***) LDAP_MALLOC( sizeof(void *) * 2);
1199 if( lc->lconn_rebind_queue == NULL) {
1200 ld->ld_errno = LDAP_NO_MEMORY;
1205 lc->lconn_rebind_queue[0] = refarray;
1206 lc->lconn_rebind_queue[1] = NULL;
1210 /* Count how many referral arrays we already have */
1211 for( j = 0; lc->lconn_rebind_queue[j] != NULL; j++) {
1215 /* Add the new referral to the list */
1216 lc->lconn_rebind_queue = (char ***) LDAP_REALLOC(
1217 lc->lconn_rebind_queue, sizeof(void *) * (j + 2));
1219 if( lc->lconn_rebind_queue == NULL ) {
1220 ld->ld_errno = LDAP_NO_MEMORY;
1224 lc->lconn_rebind_queue[j] = refarray;
1225 lc->lconn_rebind_queue[j+1] = NULL;
1229 /* We have queued the referral/reference, now just return */
1232 count = 1; /* Pretend we already followed referral */
1236 /* Re-encode the request with the new starting point of the search.
1237 * Note: In the future we also need to replace the filter if one
1238 * was provided with the search reference
1241 /* For references we don't want old dn if new dn empty */
1242 if ( sref && srv->lud_dn == NULL ) {
1243 srv->lud_dn = LDAP_STRDUP( "" );
1246 LDAP_NEXT_MSGID( ld, id );
1247 ber = re_encode_request( ld, origreq->lr_ber, id,
1248 sref, srv, &rinfo.ri_request );
1251 ld->ld_errno = LDAP_ENCODING_ERROR;
1256 Debug( LDAP_DEBUG_TRACE,
1257 "ldap_chase_v3referral: msgid %d, url \"%s\"\n",
1258 lr->lr_msgid, refarray[i], 0);
1260 /* Send the new request to the server - may require a bind */
1261 rinfo.ri_msgid = origreq->lr_origid;
1262 rinfo.ri_url = refarray[i];
1263 rc = ldap_send_server_request( ld, ber, id,
1264 origreq, &srv, NULL, &rinfo, 0, 1 );
1266 /* Failure, try next referral in the list */
1267 Debug( LDAP_DEBUG_ANY, "Unable to chase referral \"%s\" (%d: %s)\n",
1268 refarray[i], ld->ld_errno, ldap_err2string( ld->ld_errno ) );
1269 unfollowedcnt += ldap_append_referral( ld, &unfollowed, refarray[i] );
1270 ldap_free_urllist( srv );
1272 ld->ld_errno = LDAP_REFERRAL;
1274 /* Success, no need to try this referral list further */
1279 /* check if there is a queue of referrals that came in during bind */
1281 lc = find_connection( ld, srv, 1 );
1283 ld->ld_errno = LDAP_OPERATIONS_ERROR;
1285 LDAP_MUTEX_UNLOCK( &ld->ld_conn_mutex );
1290 if ( lc->lconn_rebind_queue != NULL ) {
1291 /* Release resources of previous list */
1292 LDAP_VFREE( refarray );
1294 ldap_free_urllist( srv );
1297 /* Pull entries off end of queue so list always null terminated */
1298 for( j = 0; lc->lconn_rebind_queue[j] != NULL; j++ )
1300 refarray = lc->lconn_rebind_queue[j - 1];
1301 lc->lconn_rebind_queue[j-1] = NULL;
1302 /* we pulled off last entry from queue, free queue */
1304 LDAP_FREE( lc->lconn_rebind_queue );
1305 lc->lconn_rebind_queue = NULL;
1307 /* restart the loop the with new referral list */
1311 break; /* referral followed, break out of for loop */
1313 } /* end for loop */
1315 LDAP_VFREE( refarray );
1316 ldap_free_urllist( srv );
1317 LDAP_FREE( *errstrp );
1321 LDAP_FREE( unfollowed );
1324 *errstrp = unfollowed;
1330 * XXX merging of errors in this routine needs to be improved
1331 * Protected by res_mutex, conn_mutex and req_mutex (try_read1msg)
1334 ldap_chase_referrals( LDAP *ld,
1342 char *p, *ref, *unfollowed;
1343 LDAPRequest *origreq;
1349 LDAP_ASSERT_MUTEX_OWNER( &ld->ld_res_mutex );
1350 LDAP_ASSERT_MUTEX_OWNER( &ld->ld_conn_mutex );
1351 LDAP_ASSERT_MUTEX_OWNER( &ld->ld_req_mutex );
1352 Debug( LDAP_DEBUG_TRACE, "ldap_chase_referrals\n", 0, 0, 0 );
1354 ld->ld_errno = LDAP_SUCCESS; /* optimistic */
1357 if ( *errstrp == NULL ) {
1361 len = strlen( *errstrp );
1362 for ( p = *errstrp; len >= LDAP_REF_STR_LEN; ++p, --len ) {
1363 if ( strncasecmp( p, LDAP_REF_STR, LDAP_REF_STR_LEN ) == 0 ) {
1365 p += LDAP_REF_STR_LEN;
1370 if ( len < LDAP_REF_STR_LEN ) {
1374 if ( lr->lr_parentcnt >= ld->ld_refhoplimit ) {
1375 Debug( LDAP_DEBUG_ANY,
1376 "more than %d referral hops (dropping)\n",
1377 ld->ld_refhoplimit, 0, 0 );
1378 /* XXX report as error in ld->ld_errno? */
1382 /* find original request */
1383 for ( origreq = lr; origreq->lr_parent != NULL;
1384 origreq = origreq->lr_parent ) {
1391 /* parse out & follow referrals */
1392 for ( ref = p; rc == 0 && ref != NULL; ref = p ) {
1393 p = strchr( ref, '\n' );
1398 rc = ldap_url_parse_ext( ref, &srv, LDAP_PVT_URL_PARSE_NOEMPTY_DN );
1399 if ( rc != LDAP_URL_SUCCESS ) {
1400 Debug( LDAP_DEBUG_TRACE,
1401 "ignoring %s referral <%s>\n",
1402 ref, rc == LDAP_URL_ERR_BADSCHEME ? "unknown" : "incorrect", 0 );
1403 rc = ldap_append_referral( ld, &unfollowed, ref );
1408 Debug( LDAP_DEBUG_TRACE,
1409 "chasing LDAP referral: <%s>\n", ref, 0, 0 );
1413 /* See if we've already been here */
1414 if (( lc = find_connection( ld, srv, 1 )) != NULL ) {
1417 ber_len_t len = srv->lud_dn ? strlen( srv->lud_dn ) : 0;
1418 for ( lp = lr; lp; lp = lp->lr_parent ) {
1419 if ( lp->lr_conn == lc
1420 && len == lp->lr_dn.bv_len )
1422 if ( len && strncmp( srv->lud_dn, lp->lr_dn.bv_val, len ) )
1429 ldap_free_urllist( srv );
1430 ld->ld_errno = LDAP_CLIENT_LOOP;
1436 LDAP_NEXT_MSGID( ld, id );
1437 ber = re_encode_request( ld, origreq->lr_ber,
1438 id, sref, srv, &rinfo.ri_request );
1440 if ( ber == NULL ) {
1444 /* copy the complete referral for rebind process */
1445 rinfo.ri_url = LDAP_STRDUP( ref );
1447 rinfo.ri_msgid = origreq->lr_origid;
1449 rc = ldap_send_server_request( ld, ber, id,
1450 lr, &srv, NULL, &rinfo, 0, 1 );
1451 LDAP_FREE( rinfo.ri_url );
1456 Debug( LDAP_DEBUG_ANY,
1457 "Unable to chase referral \"%s\" (%d: %s)\n",
1458 ref, ld->ld_errno, ldap_err2string( ld->ld_errno ) );
1459 rc = ldap_append_referral( ld, &unfollowed, ref );
1462 ldap_free_urllist(srv);
1465 LDAP_FREE( *errstrp );
1466 *errstrp = unfollowed;
1468 return(( rc == 0 ) ? count : rc );
1473 ldap_append_referral( LDAP *ld, char **referralsp, char *s )
1477 if ( *referralsp == NULL ) {
1479 *referralsp = (char *)LDAP_MALLOC( strlen( s ) + LDAP_REF_STR_LEN
1483 *referralsp = (char *)LDAP_REALLOC( *referralsp,
1484 strlen( *referralsp ) + strlen( s ) + 2 );
1487 if ( *referralsp == NULL ) {
1488 ld->ld_errno = LDAP_NO_MEMORY;
1493 strcpy( *referralsp, LDAP_REF_STR );
1495 strcat( *referralsp, "\n" );
1497 strcat( *referralsp, s );
1505 re_encode_request( LDAP *ld,
1506 BerElement *origber,
1513 * XXX this routine knows way too much about how the lber library works!
1521 BerElement tmpber, *ber;
1524 Debug( LDAP_DEBUG_TRACE,
1525 "re_encode_request: new msgid %ld, new dn <%s>\n",
1527 ( srv == NULL || srv->lud_dn == NULL) ? "NONE" : srv->lud_dn, 0 );
1532 * all LDAP requests are sequences that start with a message id.
1533 * For all except delete, this is followed by a sequence that is
1534 * tagged with the operation code. For delete, the provided DN
1535 * is not wrapped by a sequence.
1537 rtag = ber_scanf( &tmpber, "{it", /*}*/ &along, &tag );
1539 if ( rtag == LBER_ERROR ) {
1540 ld->ld_errno = LDAP_DECODING_ERROR;
1545 if ( tag == LDAP_REQ_BIND ) {
1546 /* bind requests have a version number before the DN & other stuff */
1547 rtag = ber_scanf( &tmpber, "{im" /*}*/, &ver, &dn );
1549 } else if ( tag == LDAP_REQ_DELETE ) {
1550 /* delete requests don't have a DN wrapping sequence */
1551 rtag = ber_scanf( &tmpber, "m", &dn );
1553 } else if ( tag == LDAP_REQ_SEARCH ) {
1554 /* search requests need to be re-scope-ed */
1555 rtag = ber_scanf( &tmpber, "{me" /*"}"*/, &dn, &scope );
1557 if( srv->lud_scope != LDAP_SCOPE_DEFAULT ) {
1558 /* use the scope provided in reference */
1559 scope = srv->lud_scope;
1561 } else if ( sref ) {
1562 /* use scope implied by previous operation
1565 * subtree -> subtree
1566 * subordinate -> subtree
1570 case LDAP_SCOPE_BASE:
1571 case LDAP_SCOPE_ONELEVEL:
1572 scope = LDAP_SCOPE_BASE;
1574 case LDAP_SCOPE_SUBTREE:
1575 case LDAP_SCOPE_SUBORDINATE:
1576 scope = LDAP_SCOPE_SUBTREE;
1582 rtag = ber_scanf( &tmpber, "{m" /*}*/, &dn );
1585 if( rtag == LBER_ERROR ) {
1586 ld->ld_errno = LDAP_DECODING_ERROR;
1590 /* restore character zero'd out by ber_scanf*/
1591 dn.bv_val[dn.bv_len] = tmpber.ber_tag;
1593 if (( ber = ldap_alloc_ber_with_options( ld )) == NULL ) {
1597 if ( srv->lud_dn ) {
1598 ber_str2bv( srv->lud_dn, 0, 0, &dn );
1601 if ( tag == LDAP_REQ_BIND ) {
1602 rc = ber_printf( ber, "{it{iO" /*}}*/, msgid, tag, ver, &dn );
1603 } else if ( tag == LDAP_REQ_DELETE ) {
1604 rc = ber_printf( ber, "{itON}", msgid, tag, &dn );
1605 } else if ( tag == LDAP_REQ_SEARCH ) {
1606 rc = ber_printf( ber, "{it{Oe" /*}}*/, msgid, tag, &dn, scope );
1608 rc = ber_printf( ber, "{it{O" /*}}*/, msgid, tag, &dn );
1612 ld->ld_errno = LDAP_ENCODING_ERROR;
1617 if ( tag != LDAP_REQ_DELETE && (
1618 ber_write(ber, tmpber.ber_ptr, ( tmpber.ber_end - tmpber.ber_ptr ), 0)
1619 != ( tmpber.ber_end - tmpber.ber_ptr ) ||
1620 ber_printf( ber, /*{{*/ "N}N}" ) == -1 ) )
1622 ld->ld_errno = LDAP_ENCODING_ERROR;
1628 if ( ldap_debug & LDAP_DEBUG_PACKETS ) {
1629 Debug( LDAP_DEBUG_ANY, "re_encode_request new request is:\n",
1631 ber_log_dump( LDAP_DEBUG_BER, ldap_debug, ber, 0 );
1633 #endif /* LDAP_DEBUG */
1635 *type = tag; /* return request type */
1640 /* protected by req_mutex */
1642 ldap_find_request_by_msgid( LDAP *ld, ber_int_t msgid )
1646 for ( lr = ld->ld_requests; lr != NULL; lr = lr->lr_next ) {
1647 if ( lr->lr_status == LDAP_REQST_COMPLETED ) {
1648 continue; /* Skip completed requests */
1650 if ( msgid == lr->lr_msgid ) {
1659 /* protected by req_mutex */
1661 ldap_return_request( LDAP *ld, LDAPRequest *lrx, int freeit )
1665 for ( lr = ld->ld_requests; lr != NULL; lr = lr->lr_next ) {
1667 if ( lr->lr_refcnt > 0 ) {
1670 } else if ( lr->lr_refcnt < 0 ) {
1672 if ( lr->lr_refcnt == 0 ) {
1680 ldap_free_request_int( ld, lrx );
1682 } else if ( freeit ) {
1683 ldap_free_request( ld, lrx );