2 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
4 * Copyright 1998-2004 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 * Redistribution and use in source and binary forms are permitted
19 * provided that this notice is preserved and that due credit is given
20 * to the University of Michigan at Ann Arbor. The name of the University
21 * may not be used to endorse or promote products derived from this
22 * software without specific prior written permission. This software
23 * is provided ``as is'' without express or implied warranty.
31 #include <ac/socket.h>
33 #include <ac/string.h>
35 #include <ac/unistd.h>
42 #include "slapi/slapi.h"
45 /* protected by connections_mutex */
46 static ldap_pvt_thread_mutex_t connections_mutex;
47 static Connection *connections = NULL;
48 static unsigned long conn_nextid = 0;
50 /* structure state (protected by connections_mutex) */
51 #define SLAP_C_UNINITIALIZED 0x00 /* MUST BE ZERO (0) */
52 #define SLAP_C_UNUSED 0x01
53 #define SLAP_C_USED 0x02
55 /* connection state (protected by c_mutex ) */
56 #define SLAP_C_INVALID 0x00 /* MUST BE ZERO (0) */
57 #define SLAP_C_INACTIVE 0x01 /* zero threads */
58 #define SLAP_C_ACTIVE 0x02 /* one or more threads */
59 #define SLAP_C_BINDING 0x03 /* binding */
60 #define SLAP_C_CLOSING 0x04 /* closing */
61 #define SLAP_C_CLIENT 0x05 /* outbound client conn */
64 connection_state2str( int state )
67 case SLAP_C_INVALID: return "!";
68 case SLAP_C_INACTIVE: return "|";
69 case SLAP_C_ACTIVE: return "";
70 case SLAP_C_BINDING: return "B";
71 case SLAP_C_CLOSING: return "C";
72 case SLAP_C_CLIENT: return "L";
78 static Connection* connection_get( ber_socket_t s );
80 static int connection_input( Connection *c );
81 static void connection_close( Connection *c );
83 static int connection_op_activate( Operation *op );
84 static int connection_resched( Connection *conn );
85 static void connection_abandon( Connection *conn );
86 static void connection_destroy( Connection *c );
88 static ldap_pvt_thread_start_t connection_operation;
91 * Initialize connection management infrastructure.
93 int connections_init(void)
97 assert( connections == NULL );
99 if( connections != NULL) {
101 LDAP_LOG( CONNECTION, INFO,
102 "connections_init: already initialized.\n", 0, 0, 0 );
104 Debug( LDAP_DEBUG_ANY, "connections_init: already initialized.\n",
110 /* should check return of every call */
111 ldap_pvt_thread_mutex_init( &connections_mutex );
113 connections = (Connection *) ch_calloc( dtblsize, sizeof(Connection) );
115 if( connections == NULL ) {
117 LDAP_LOG( CONNECTION, ERR,
118 "connections_init: allocation (%d * %ld) of connection "
119 "array failed\n", dtblsize, (long) sizeof(Connection), 0 );
121 Debug( LDAP_DEBUG_ANY,
122 "connections_init: allocation (%d*%ld) of connection array failed\n",
123 dtblsize, (long) sizeof(Connection), 0 );
128 assert( connections[0].c_struct_state == SLAP_C_UNINITIALIZED );
129 assert( connections[dtblsize-1].c_struct_state == SLAP_C_UNINITIALIZED );
131 for (i=0; i<dtblsize; i++) connections[i].c_conn_idx = i;
134 * per entry initialization of the Connection array initialization
135 * will be done by connection_init()
142 * Destroy connection management infrastructure.
144 int connections_destroy(void)
148 /* should check return of every call */
150 if( connections == NULL) {
152 LDAP_LOG( CONNECTION, INFO,
153 "connections_destroy: nothing to destroy.\n", 0, 0, 0 );
155 Debug( LDAP_DEBUG_ANY, "connections_destroy: nothing to destroy.\n",
161 for ( i = 0; i < dtblsize; i++ ) {
162 if( connections[i].c_struct_state != SLAP_C_UNINITIALIZED ) {
163 ber_sockbuf_free( connections[i].c_sb );
164 ldap_pvt_thread_mutex_destroy( &connections[i].c_mutex );
165 ldap_pvt_thread_mutex_destroy( &connections[i].c_write_mutex );
166 ldap_pvt_thread_cond_destroy( &connections[i].c_write_cv );
168 if ( slapi_plugins_used ) {
169 slapi_int_free_object_extensions( SLAPI_X_EXT_CONNECTION, &connections[i] );
178 ldap_pvt_thread_mutex_destroy( &connections_mutex );
183 * shutdown all connections
185 int connections_shutdown(void)
189 ldap_pvt_thread_mutex_lock( &connections_mutex );
191 for ( i = 0; i < dtblsize; i++ ) {
192 if( connections[i].c_struct_state != SLAP_C_USED ) {
195 /* give persistent clients a chance to cleanup */
196 if( connections[i].c_conn_state == SLAP_C_CLIENT ) {
197 ldap_pvt_thread_pool_submit( &connection_pool,
198 connections[i].c_clientfunc, connections[i].c_clientarg );
202 ldap_pvt_thread_mutex_lock( &connections[i].c_mutex );
204 /* connections_mutex and c_mutex are locked */
205 connection_closing( &connections[i] );
206 connection_close( &connections[i] );
208 ldap_pvt_thread_mutex_unlock( &connections[i].c_mutex );
211 ldap_pvt_thread_mutex_unlock( &connections_mutex );
217 * Timeout idle connections.
219 int connections_timeout_idle(time_t now)
225 for( c = connection_first( &connindex );
227 c = connection_next( c, &connindex ) )
229 /* Don't timeout a slow-running request or a persistent
230 * outbound connection */
231 if( c->c_n_ops_executing ||
232 c->c_conn_state == SLAP_C_CLIENT ) continue;
234 if( difftime( c->c_activitytime+global_idletimeout, now) < 0 ) {
236 connection_closing( c );
237 connection_close( c );
241 connection_done( c );
246 static Connection* connection_get( ber_socket_t s )
248 /* connections_mutex should be locked by caller */
253 LDAP_LOG( CONNECTION, ENTRY, "connection_get: socket %ld\n", (long)s, 0, 0 );
255 Debug( LDAP_DEBUG_ARGS,
256 "connection_get(%ld)\n",
260 assert( connections != NULL );
262 if(s == AC_SOCKET_INVALID) {
269 assert( c->c_struct_state != SLAP_C_UNINITIALIZED );
276 for(i=0; i<dtblsize; i++) {
277 if( connections[i].c_struct_state == SLAP_C_UNINITIALIZED ) {
278 assert( connections[i].c_conn_state == SLAP_C_INVALID );
279 assert( connections[i].c_sb == 0 );
283 ber_sockbuf_ctrl( connections[i].c_sb,
284 LBER_SB_OPT_GET_FD, &sd );
286 if( connections[i].c_struct_state == SLAP_C_UNUSED ) {
287 assert( connections[i].c_conn_state == SLAP_C_INVALID );
288 assert( sd == AC_SOCKET_INVALID );
292 /* state can actually change from used -> unused by resched,
293 * so don't assert details here.
307 ldap_pvt_thread_mutex_lock( &c->c_mutex );
309 ber_sockbuf_ctrl( c->c_sb, LBER_SB_OPT_GET_FD, &sd );
310 if( c->c_struct_state != SLAP_C_USED ) {
311 /* connection must have been closed due to resched */
313 assert( c->c_conn_state == SLAP_C_INVALID );
314 assert( sd == AC_SOCKET_INVALID );
317 LDAP_LOG( CONNECTION, ARGS,
318 "connection_get: connection %d not used\n", s, 0, 0 );
320 Debug( LDAP_DEBUG_TRACE,
321 "connection_get(%d): connection not used\n",
325 ldap_pvt_thread_mutex_unlock( &c->c_mutex );
330 LDAP_LOG( CONNECTION, RESULTS,
331 "connection_get: get for %d got connid %lu\n", s, c->c_connid, 0 );
333 Debug( LDAP_DEBUG_TRACE,
334 "connection_get(%d): got connid=%lu\n",
340 assert( c->c_struct_state == SLAP_C_USED );
341 assert( c->c_conn_state != SLAP_C_INVALID );
342 assert( sd != AC_SOCKET_INVALID );
345 c->c_activitytime = slap_get_time();
347 if( global_idletimeout > 0 ) {
348 c->c_activitytime = slap_get_time();
356 static void connection_return( Connection *c )
358 ldap_pvt_thread_mutex_unlock( &c->c_mutex );
361 long connection_init(
365 const char* peername,
368 struct berval *authid )
373 assert( connections != NULL );
375 assert( listener != NULL );
376 assert( dnsname != NULL );
377 assert( peername != NULL );
380 assert( flags != CONN_IS_TLS );
383 if( s == AC_SOCKET_INVALID ) {
385 LDAP_LOG( CONNECTION, INFO,
386 "connection_init: init of socket %ld invalid.\n", (long)s, 0, 0 );
388 Debug( LDAP_DEBUG_ANY,
389 "connection_init: init of socket %ld invalid.\n", (long)s, 0, 0 );
396 assert( s < dtblsize );
399 ldap_pvt_thread_mutex_lock( &connections_mutex );
409 for( i=0; i < dtblsize; i++) {
412 if( connections[i].c_struct_state == SLAP_C_UNINITIALIZED ) {
413 assert( connections[i].c_sb == 0 );
418 sd = AC_SOCKET_INVALID;
419 if (connections[i].c_sb != NULL) {
420 ber_sockbuf_ctrl( connections[i].c_sb,
421 LBER_SB_OPT_GET_FD, &sd );
424 if( connections[i].c_struct_state == SLAP_C_UNUSED ) {
425 assert( sd == AC_SOCKET_INVALID );
430 if( connections[i].c_conn_state == SLAP_C_CLIENT ) {
434 assert( connections[i].c_struct_state == SLAP_C_USED );
435 assert( connections[i].c_conn_state != SLAP_C_INVALID );
436 assert( sd != AC_SOCKET_INVALID );
441 LDAP_LOG( CONNECTION, INFO,
442 "connection_init(%d): connection table full "
443 "(%d/%d)\n", s, i, dtblsize );
445 Debug( LDAP_DEBUG_ANY,
446 "connection_init(%d): connection table full "
447 "(%d/%d)\n", s, i, dtblsize);
449 ldap_pvt_thread_mutex_unlock( &connections_mutex );
457 if( c->c_struct_state == SLAP_C_UNINITIALIZED ) {
458 c->c_send_ldap_result = slap_send_ldap_result;
459 c->c_send_search_entry = slap_send_search_entry;
460 c->c_send_search_reference = slap_send_search_reference;
461 c->c_send_ldap_extended = slap_send_ldap_extended;
462 #ifdef LDAP_RES_INTERMEDIATE
463 c->c_send_ldap_intermediate = slap_send_ldap_intermediate;
466 BER_BVZERO( &c->c_authmech );
467 BER_BVZERO( &c->c_dn );
468 BER_BVZERO( &c->c_ndn );
470 c->c_listener = NULL;
471 BER_BVZERO( &c->c_peer_domain );
472 BER_BVZERO( &c->c_peer_name );
474 LDAP_STAILQ_INIT(&c->c_ops);
475 LDAP_STAILQ_INIT(&c->c_pending_ops);
477 BER_BVZERO( &c->c_sasl_bind_mech );
479 c->c_sasl_authctx = NULL;
480 c->c_sasl_sockctx = NULL;
481 c->c_sasl_extra = NULL;
482 c->c_sasl_bindop = NULL;
484 c->c_sb = ber_sockbuf_alloc( );
487 ber_len_t max = sockbuf_max_incoming;
488 ber_sockbuf_ctrl( c->c_sb, LBER_SB_OPT_SET_MAX_INCOMING, &max );
491 c->c_currentber = NULL;
493 /* should check status of thread calls */
494 ldap_pvt_thread_mutex_init( &c->c_mutex );
495 ldap_pvt_thread_mutex_init( &c->c_write_mutex );
496 ldap_pvt_thread_cond_init( &c->c_write_cv );
499 if ( slapi_plugins_used ) {
500 slapi_int_create_object_extensions( SLAPI_X_EXT_CONNECTION, c );
504 c->c_struct_state = SLAP_C_UNUSED;
507 ldap_pvt_thread_mutex_lock( &c->c_mutex );
509 assert( c->c_struct_state == SLAP_C_UNUSED );
510 assert( BER_BVISNULL( &c->c_authmech ) );
511 assert( BER_BVISNULL( &c->c_dn ) );
512 assert( BER_BVISNULL( &c->c_ndn ) );
513 assert( c->c_listener == NULL );
514 assert( BER_BVISNULL( &c->c_peer_domain ) );
515 assert( BER_BVISNULL( &c->c_peer_name ) );
516 assert( LDAP_STAILQ_EMPTY(&c->c_ops) );
517 assert( LDAP_STAILQ_EMPTY(&c->c_pending_ops) );
518 assert( BER_BVISNULL( &c->c_sasl_bind_mech ) );
519 assert( c->c_sasl_done == 0 );
520 assert( c->c_sasl_authctx == NULL );
521 assert( c->c_sasl_sockctx == NULL );
522 assert( c->c_sasl_extra == NULL );
523 assert( c->c_sasl_bindop == NULL );
524 assert( c->c_currentber == NULL );
525 assert( c->c_writewaiter == 0);
527 c->c_listener = listener;
529 if ( flags == CONN_IS_CLIENT ) {
530 c->c_conn_state = SLAP_C_CLIENT;
531 c->c_struct_state = SLAP_C_USED;
532 ber_sockbuf_ctrl( c->c_sb, LBER_SB_OPT_SET_FD, &s );
533 ldap_pvt_thread_mutex_unlock( &c->c_mutex );
534 ldap_pvt_thread_mutex_unlock( &connections_mutex );
539 ber_str2bv( dnsname, 0, 1, &c->c_peer_domain );
540 ber_str2bv( peername, 0, 1, &c->c_peer_name );
542 c->c_n_ops_received = 0;
543 c->c_n_ops_executing = 0;
544 c->c_n_ops_pending = 0;
545 c->c_n_ops_completed = 0;
551 /* set to zero until bind, implies LDAP_VERSION3 */
555 c->c_activitytime = c->c_starttime = slap_get_time();
557 if( global_idletimeout > 0 ) {
558 c->c_activitytime = c->c_starttime = slap_get_time();
562 #ifdef LDAP_CONNECTIONLESS
564 if( flags == CONN_IS_UDP ) {
567 ber_sockbuf_add_io( c->c_sb, &ber_sockbuf_io_debug,
568 LBER_SBIOD_LEVEL_PROVIDER, (void*)"udp_" );
570 ber_sockbuf_add_io( c->c_sb, &ber_sockbuf_io_udp,
571 LBER_SBIOD_LEVEL_PROVIDER, (void *)&s );
572 ber_sockbuf_add_io( c->c_sb, &ber_sockbuf_io_readahead,
573 LBER_SBIOD_LEVEL_PROVIDER, NULL );
578 ber_sockbuf_add_io( c->c_sb, &ber_sockbuf_io_debug,
579 LBER_SBIOD_LEVEL_PROVIDER, (void*)"tcp_" );
581 ber_sockbuf_add_io( c->c_sb, &ber_sockbuf_io_tcp,
582 LBER_SBIOD_LEVEL_PROVIDER, (void *)&s );
586 ber_sockbuf_add_io( c->c_sb, &ber_sockbuf_io_debug,
587 INT_MAX, (void*)"ldap_" );
590 if( ber_sockbuf_ctrl( c->c_sb, LBER_SB_OPT_SET_NONBLOCK,
591 c /* non-NULL */ ) < 0 )
594 LDAP_LOG( CONNECTION, INFO,
595 "connection_init: conn %lu set nonblocking failed\n",
598 Debug( LDAP_DEBUG_ANY,
599 "connection_init(%d, %s): set nonblocking failed\n",
600 s, c->c_peer_name.bv_val, 0 );
604 id = c->c_connid = conn_nextid++;
606 c->c_conn_state = SLAP_C_INACTIVE;
607 c->c_struct_state = SLAP_C_USED;
609 c->c_ssf = c->c_transport_ssf = ssf;
613 if ( flags == CONN_IS_TLS ) {
615 c->c_needs_tls_accept = 1;
618 c->c_needs_tls_accept = 0;
622 slap_sasl_open( c, 0 );
623 slap_sasl_external( c, ssf, authid );
625 ldap_pvt_thread_mutex_unlock( &c->c_mutex );
626 ldap_pvt_thread_mutex_unlock( &connections_mutex );
628 backend_connection_init(c);
633 void connection2anonymous( Connection *c )
635 assert( connections != NULL );
639 ber_len_t max = sockbuf_max_incoming;
640 ber_sockbuf_ctrl( c->c_sb, LBER_SB_OPT_SET_MAX_INCOMING, &max );
643 if(c->c_authmech.bv_val != NULL ) {
644 free(c->c_authmech.bv_val);
646 BER_BVZERO( &c->c_authmech );
648 if(c->c_dn.bv_val != NULL) {
649 free(c->c_dn.bv_val);
651 BER_BVZERO( &c->c_dn );
652 if(c->c_ndn.bv_val != NULL) {
653 free(c->c_ndn.bv_val);
655 BER_BVZERO( &c->c_ndn );
657 c->c_authz_backend = NULL;
661 connection_destroy( Connection *c )
663 /* note: connections_mutex should be locked by caller */
665 unsigned long connid;
667 assert( connections != NULL );
669 assert( c->c_struct_state != SLAP_C_UNUSED );
670 assert( c->c_conn_state != SLAP_C_INVALID );
671 assert( LDAP_STAILQ_EMPTY(&c->c_ops) );
672 assert( c->c_writewaiter == 0);
674 /* only for stats (print -1 as "%lu" may give unexpected results ;) */
675 connid = c->c_connid;
677 backend_connection_destroy(c);
682 c->c_activitytime = c->c_starttime = 0;
684 connection2anonymous( c );
685 c->c_listener = NULL;
687 if(c->c_peer_domain.bv_val != NULL) {
688 free(c->c_peer_domain.bv_val);
690 BER_BVZERO( &c->c_peer_domain );
691 if(c->c_peer_name.bv_val != NULL) {
692 free(c->c_peer_name.bv_val);
694 BER_BVZERO( &c->c_peer_name );
696 c->c_sasl_bind_in_progress = 0;
697 if(c->c_sasl_bind_mech.bv_val != NULL) {
698 free(c->c_sasl_bind_mech.bv_val);
700 BER_BVZERO( &c->c_sasl_bind_mech );
702 slap_sasl_close( c );
704 if ( c->c_currentber != NULL ) {
705 ber_free( c->c_currentber, 1 );
706 c->c_currentber = NULL;
709 ber_sockbuf_ctrl( c->c_sb, LBER_SB_OPT_GET_FD, &sd );
710 if ( sd != AC_SOCKET_INVALID ) {
711 slapd_remove( sd, 1, 0 );
713 Statslog( LDAP_DEBUG_STATS,
714 "conn=%lu fd=%ld closed\n",
715 connid, (long) sd, 0, 0, 0 );
718 ber_sockbuf_free( c->c_sb );
720 c->c_sb = ber_sockbuf_alloc( );
723 ber_len_t max = sockbuf_max_incoming;
724 ber_sockbuf_ctrl( c->c_sb, LBER_SB_OPT_SET_MAX_INCOMING, &max );
727 c->c_conn_state = SLAP_C_INVALID;
728 c->c_struct_state = SLAP_C_UNUSED;
731 /* call destructors, then constructors; avoids unnecessary allocation */
732 if ( slapi_plugins_used ) {
733 slapi_int_clear_object_extensions( SLAPI_X_EXT_CONNECTION, c );
738 int connection_state_closing( Connection *c )
740 /* c_mutex must be locked by caller */
744 assert( c->c_struct_state == SLAP_C_USED );
746 state = c->c_conn_state;
748 assert( state != SLAP_C_INVALID );
750 return state == SLAP_C_CLOSING;
753 static void connection_abandon( Connection *c )
755 /* c_mutex must be locked by caller */
759 LDAP_STAILQ_FOREACH(o, &c->c_ops, o_next) {
763 /* remove pending operations */
764 while ( (o = LDAP_STAILQ_FIRST( &c->c_pending_ops )) != NULL) {
765 LDAP_STAILQ_REMOVE_HEAD( &c->c_pending_ops, o_next );
766 LDAP_STAILQ_NEXT(o, o_next) = NULL;
771 void connection_closing( Connection *c )
773 assert( connections != NULL );
775 assert( c->c_struct_state == SLAP_C_USED );
776 assert( c->c_conn_state != SLAP_C_INVALID );
778 /* c_mutex must be locked by caller */
780 if( c->c_conn_state != SLAP_C_CLOSING ) {
783 ber_sockbuf_ctrl( c->c_sb, LBER_SB_OPT_GET_FD, &sd );
785 LDAP_LOG( CONNECTION, DETAIL1,
786 "connection_closing: conn %lu readying socket %d for close.\n",
787 c->c_connid, sd, 0 );
789 Debug( LDAP_DEBUG_TRACE,
790 "connection_closing: readying conn=%lu sd=%d for close\n",
791 c->c_connid, sd, 0 );
793 /* update state to closing */
794 c->c_conn_state = SLAP_C_CLOSING;
796 /* don't listen on this port anymore */
797 slapd_clr_read( sd, 1 );
799 /* abandon active operations */
800 connection_abandon( c );
802 /* wake write blocked operations */
803 slapd_clr_write( sd, 1 );
804 ldap_pvt_thread_cond_signal( &c->c_write_cv );
808 static void connection_close( Connection *c )
812 assert( connections != NULL );
814 assert( c->c_struct_state == SLAP_C_USED );
815 assert( c->c_conn_state == SLAP_C_CLOSING );
817 /* note: connections_mutex and c_mutex should be locked by caller */
819 ber_sockbuf_ctrl( c->c_sb, LBER_SB_OPT_GET_FD, &sd );
820 if( !LDAP_STAILQ_EMPTY(&c->c_ops) ) {
822 LDAP_LOG( CONNECTION, DETAIL1,
823 "connection_close: conn %lu deferring sd %d\n",
824 c->c_connid, sd, 0 );
826 Debug( LDAP_DEBUG_TRACE,
827 "connection_close: deferring conn=%lu sd=%d\n",
828 c->c_connid, sd, 0 );
834 LDAP_LOG( CONNECTION, RESULTS,
835 "connection_close: conn %lu sd %d\n", c->c_connid, sd, 0 );
837 Debug( LDAP_DEBUG_TRACE, "connection_close: conn=%lu sd=%d\n",
838 c->c_connid, sd, 0 );
840 connection_destroy( c );
843 unsigned long connections_nextid(void)
846 assert( connections != NULL );
848 ldap_pvt_thread_mutex_lock( &connections_mutex );
852 ldap_pvt_thread_mutex_unlock( &connections_mutex );
857 Connection* connection_first( ber_socket_t *index )
859 assert( connections != NULL );
860 assert( index != NULL );
862 ldap_pvt_thread_mutex_lock( &connections_mutex );
866 return connection_next(NULL, index);
869 Connection* connection_next( Connection *c, ber_socket_t *index )
871 assert( connections != NULL );
872 assert( index != NULL );
873 assert( *index <= dtblsize );
876 ldap_pvt_thread_mutex_unlock( &c->c_mutex );
881 for(; *index < dtblsize; (*index)++) {
882 if( connections[*index].c_struct_state == SLAP_C_UNINITIALIZED ) {
883 assert( connections[*index].c_conn_state == SLAP_C_INVALID );
891 if( connections[*index].c_struct_state == SLAP_C_USED ) {
892 assert( connections[*index].c_conn_state != SLAP_C_INVALID );
893 c = &connections[(*index)++];
897 assert( connections[*index].c_struct_state == SLAP_C_UNUSED );
898 assert( connections[*index].c_conn_state == SLAP_C_INVALID );
902 ldap_pvt_thread_mutex_lock( &c->c_mutex );
908 void connection_done( Connection *c )
910 assert( connections != NULL );
913 ldap_pvt_thread_mutex_unlock( &c->c_mutex );
916 ldap_pvt_thread_mutex_unlock( &connections_mutex );
920 * connection_activity - handle the request operation op on connection
921 * conn. This routine figures out what kind of operation it is and
922 * calls the appropriate stub to handle it.
926 #define INCR_OP(var,index) \
928 ldap_pvt_thread_mutex_lock( &num_ops_mutex ); \
930 ldap_pvt_thread_mutex_unlock( &num_ops_mutex ); \
932 #else /* !SLAPD_MONITOR */
933 #define INCR_OP(var,index)
934 #endif /* !SLAPD_MONITOR */
937 connection_operation( void *ctx, void *arg_v )
940 Operation *op = arg_v;
941 SlapReply rs = {REP_RESULT};
942 ber_tag_t tag = op->o_tag;
944 ber_tag_t oldtag = tag;
945 #endif /* SLAPD_MONITOR */
946 Connection *conn = op->o_conn;
948 void *memctx_null = NULL;
951 ldap_pvt_thread_mutex_lock( &num_ops_mutex );
953 ldap_pvt_thread_mutex_unlock( &num_ops_mutex );
955 op->o_threadctx = ctx;
959 case LDAP_REQ_UNBIND:
961 case LDAP_REQ_DELETE:
962 case LDAP_REQ_MODRDN:
963 case LDAP_REQ_MODIFY:
964 case LDAP_REQ_COMPARE:
965 case LDAP_REQ_SEARCH:
966 case LDAP_REQ_ABANDON:
967 case LDAP_REQ_EXTENDED:
971 LDAP_LOG( CONNECTION, INFO, "connection_operation: "
972 "conn %lu unknown LDAP request 0x%lx\n",
973 conn->c_connid, tag, 0 );
975 Debug( LDAP_DEBUG_ANY, "connection_operation: "
976 "conn %lu unknown LDAP request 0x%lx\n",
977 conn->c_connid, tag, 0 );
979 op->o_tag = LBER_ERROR;
980 rs.sr_err = LDAP_PROTOCOL_ERROR;
981 rs.sr_text = "unknown LDAP request";
982 send_ldap_disconnect( op, &rs );
983 rc = SLAPD_DISCONNECT;
984 goto operations_error;
987 if( conn->c_sasl_bind_in_progress && tag != LDAP_REQ_BIND ) {
989 LDAP_LOG( CONNECTION, ERR,
990 "connection_operation: conn %lu SASL bind in progress (tag=%ld).\n",
991 conn->c_connid, (long)tag, 0 );
993 Debug( LDAP_DEBUG_ANY, "connection_operation: "
994 "error: SASL bind in progress (tag=%ld).\n",
997 send_ldap_error( op, &rs, LDAP_OPERATIONS_ERROR,
998 "SASL bind in progress" );
999 rc = LDAP_OPERATIONS_ERROR;
1000 goto operations_error;
1003 /* We can use Thread-Local storage for most mallocs. We can
1004 * also use TL for ber parsing, but not on Add or Modify.
1007 memsiz = ber_len( op->o_ber ) * 64;
1008 if ( SLAP_SLAB_SIZE > memsiz ) memsiz = SLAP_SLAB_SIZE;
1010 memsiz = SLAP_SLAB_SIZE;
1012 memctx = slap_sl_mem_create( memsiz, ctx );
1013 op->o_tmpmemctx = memctx;
1014 op->o_tmpmfuncs = &slap_sl_mfuncs;
1015 if ( tag != LDAP_REQ_ADD && tag != LDAP_REQ_MODIFY ) {
1016 /* Note - the ber and its buffer are already allocated from
1017 * regular memory; this only affects subsequent mallocs that
1018 * ber_scanf may invoke.
1020 ber_set_option( op->o_ber, LBER_OPT_BER_MEMCTX, &memctx );
1025 INCR_OP(num_ops_initiated_, SLAP_OP_BIND);
1026 rc = do_bind( op, &rs );
1029 case LDAP_REQ_UNBIND:
1030 INCR_OP(num_ops_initiated_, SLAP_OP_UNBIND);
1031 rc = do_unbind( op, &rs );
1035 INCR_OP(num_ops_initiated_, SLAP_OP_ADD);
1036 rc = do_add( op, &rs );
1039 case LDAP_REQ_DELETE:
1040 INCR_OP(num_ops_initiated_, SLAP_OP_DELETE);
1041 rc = do_delete( op, &rs );
1044 case LDAP_REQ_MODRDN:
1045 INCR_OP(num_ops_initiated_, SLAP_OP_MODRDN);
1046 rc = do_modrdn( op, &rs );
1049 case LDAP_REQ_MODIFY:
1050 INCR_OP(num_ops_initiated_, SLAP_OP_MODIFY);
1051 rc = do_modify( op, &rs );
1054 case LDAP_REQ_COMPARE:
1055 INCR_OP(num_ops_initiated_, SLAP_OP_COMPARE);
1056 rc = do_compare( op, &rs );
1059 case LDAP_REQ_SEARCH:
1060 INCR_OP(num_ops_initiated_, SLAP_OP_SEARCH);
1061 rc = do_search( op, &rs );
1064 case LDAP_REQ_ABANDON:
1065 INCR_OP(num_ops_initiated_, SLAP_OP_ABANDON);
1066 rc = do_abandon( op, &rs );
1069 case LDAP_REQ_EXTENDED:
1070 INCR_OP(num_ops_initiated_, SLAP_OP_EXTENDED);
1071 rc = do_extended( op, &rs );
1080 if( rc == SLAPD_DISCONNECT ) tag = LBER_ERROR;
1082 ldap_pvt_thread_mutex_lock( &num_ops_mutex );
1084 num_ops_completed++;
1085 #ifdef SLAPD_MONITOR
1088 num_ops_completed_[SLAP_OP_BIND]++;
1090 case LDAP_REQ_UNBIND:
1091 num_ops_completed_[SLAP_OP_UNBIND]++;
1094 num_ops_completed_[SLAP_OP_ADD]++;
1096 case LDAP_REQ_DELETE:
1097 num_ops_completed_[SLAP_OP_DELETE]++;
1099 case LDAP_REQ_MODRDN:
1100 num_ops_completed_[SLAP_OP_MODRDN]++;
1102 case LDAP_REQ_MODIFY:
1103 num_ops_completed_[SLAP_OP_MODIFY]++;
1105 case LDAP_REQ_COMPARE:
1106 num_ops_completed_[SLAP_OP_COMPARE]++;
1108 case LDAP_REQ_SEARCH:
1109 num_ops_completed_[SLAP_OP_SEARCH]++;
1111 case LDAP_REQ_ABANDON:
1112 num_ops_completed_[SLAP_OP_ABANDON]++;
1114 case LDAP_REQ_EXTENDED:
1115 num_ops_completed_[SLAP_OP_EXTENDED]++;
1121 #endif /* SLAPD_MONITOR */
1122 ldap_pvt_thread_mutex_unlock( &num_ops_mutex );
1124 if ( op->o_cancel == SLAP_CANCEL_REQ ) {
1125 op->o_cancel = LDAP_TOO_LATE;
1127 while ( op->o_cancel != SLAP_CANCEL_NONE &&
1128 op->o_cancel != SLAP_CANCEL_DONE )
1130 ldap_pvt_thread_yield();
1133 ldap_pvt_thread_mutex_lock( &conn->c_mutex );
1135 ber_set_option( op->o_ber, LBER_OPT_BER_MEMCTX, &memctx_null );
1137 if ( op->o_cancel != SLAP_CANCEL_ACK &&
1138 ( op->o_sync_mode & SLAP_SYNC_PERSIST ) )
1140 slap_sl_mem_detach( ctx, memctx );
1142 } else if ( op->o_sync_slog_size != -1 ) {
1143 slap_sl_mem_detach( ctx, memctx );
1144 LDAP_STAILQ_REMOVE( &conn->c_ops, op, slap_op, o_next);
1145 LDAP_STAILQ_NEXT(op, o_next) = NULL;
1146 conn->c_n_ops_executing--;
1147 conn->c_n_ops_completed++;
1150 LDAP_STAILQ_REMOVE( &conn->c_ops, op, slap_op, o_next);
1151 LDAP_STAILQ_NEXT(op, o_next) = NULL;
1153 conn->c_n_ops_executing--;
1154 conn->c_n_ops_completed++;
1159 case LDAP_REQ_UNBIND:
1160 /* c_mutex is locked */
1161 connection_closing( conn );
1165 conn->c_sasl_bind_in_progress =
1166 rc == LDAP_SASL_BIND_IN_PROGRESS ? 1 : 0;
1168 if( conn->c_conn_state == SLAP_C_BINDING) {
1169 conn->c_conn_state = SLAP_C_ACTIVE;
1173 connection_resched( conn );
1174 ldap_pvt_thread_mutex_unlock( &conn->c_mutex );
1178 static const Listener dummy_list = { BER_BVC(""), BER_BVC("") };
1180 int connection_client_setup(
1182 ldap_pvt_thread_start_t *func,
1188 rc = connection_init( s, (Listener *)&dummy_list, "", "",
1189 CONN_IS_CLIENT, 0, NULL );
1190 if ( rc < 0 ) return -1;
1192 c = connection_get( s );
1193 c->c_clientfunc = func;
1194 c->c_clientarg = arg;
1195 connection_return( c );
1196 slapd_add_internal( s, 0 );
1197 slapd_set_read( s, 1 );
1201 void connection_client_enable(
1204 slapd_set_read( s, 1 );
1207 void connection_client_stop(
1212 /* get (locked) connection */
1213 c = connection_get( s );
1215 assert( c->c_conn_state == SLAP_C_CLIENT );
1217 c->c_listener = NULL;
1218 c->c_conn_state = SLAP_C_INVALID;
1219 c->c_struct_state = SLAP_C_UNUSED;
1220 connection_return( c );
1221 slapd_remove( s, 0, 1 );
1224 int connection_read(ber_socket_t s)
1229 assert( connections != NULL );
1231 ldap_pvt_thread_mutex_lock( &connections_mutex );
1233 /* get (locked) connection */
1234 c = connection_get( s );
1238 LDAP_LOG( CONNECTION, INFO,
1239 "connection_read: sock %ld no connection\n", (long)s, 0, 0 );
1241 Debug( LDAP_DEBUG_ANY,
1242 "connection_read(%ld): no connection!\n",
1245 slapd_remove(s, 1, 0);
1247 ldap_pvt_thread_mutex_unlock( &connections_mutex );
1253 if( c->c_conn_state == SLAP_C_CLOSING ) {
1255 LDAP_LOG( CONNECTION, INFO,
1256 "connection_read: conn %lu connection closing, ignoring input\n",
1257 c->c_connid, 0, 0 );
1259 Debug( LDAP_DEBUG_TRACE,
1260 "connection_read(%d): closing, ignoring input for id=%lu\n",
1261 s, c->c_connid, 0 );
1263 connection_return( c );
1264 ldap_pvt_thread_mutex_unlock( &connections_mutex );
1268 if ( c->c_conn_state == SLAP_C_CLIENT ) {
1269 slapd_clr_read( s, 0 );
1270 ldap_pvt_thread_pool_submit( &connection_pool,
1271 c->c_clientfunc, c->c_clientarg );
1272 connection_return( c );
1273 ldap_pvt_thread_mutex_unlock( &connections_mutex );
1278 LDAP_LOG( CONNECTION, DETAIL1,
1279 "connection_read: conn %lu checking for input.\n",
1280 c->c_connid, 0, 0 );
1282 Debug( LDAP_DEBUG_TRACE,
1283 "connection_read(%d): checking for input on id=%lu\n",
1284 s, c->c_connid, 0 );
1288 if ( c->c_is_tls && c->c_needs_tls_accept ) {
1289 rc = ldap_pvt_tls_accept( c->c_sb, slap_tls_ctx );
1291 #if 0 /* required by next #if 0 */
1297 LDAP_LOG( CONNECTION, ERR,
1298 "connection_read: conn %lu TLS accept error, error %d\n",
1299 c->c_connid, rc, 0 );
1301 Debug( LDAP_DEBUG_TRACE,
1302 "connection_read(%d): TLS accept error "
1303 "error=%d id=%lu, closing\n",
1304 s, rc, c->c_connid );
1306 c->c_needs_tls_accept = 0;
1307 /* connections_mutex and c_mutex are locked */
1308 connection_closing( c );
1311 /* Drain input before close, to allow SSL error codes
1312 * to propagate to client. */
1318 rc = select(s+1, &rfd, NULL, NULL, &tv);
1320 ber_sockbuf_ctrl( c->c_sb, LBER_SB_OPT_DRAIN, NULL);
1324 connection_close( c );
1326 } else if ( rc == 0 ) {
1328 struct berval authid = BER_BVNULL;
1330 c->c_needs_tls_accept = 0;
1332 /* we need to let SASL know */
1333 ssl = ldap_pvt_tls_sb_ctx( c->c_sb );
1335 c->c_tls_ssf = (slap_ssf_t) ldap_pvt_tls_get_strength( ssl );
1336 if( c->c_tls_ssf > c->c_ssf ) {
1337 c->c_ssf = c->c_tls_ssf;
1340 rc = dnX509peerNormalize( ssl, &authid );
1341 if ( rc != LDAP_SUCCESS ) {
1343 LDAP_LOG( CONNECTION, INFO, "connection_read: "
1344 "conn %lu unable to get TLS client DN, error %d\n",
1345 c->c_connid, rc, 0 );
1347 Debug( LDAP_DEBUG_TRACE, "connection_read(%d): "
1348 "unable to get TLS client DN, error=%d id=%lu\n",
1349 s, rc, c->c_connid );
1352 slap_sasl_external( c, c->c_tls_ssf, &authid );
1353 if ( authid.bv_val ) free( authid.bv_val );
1356 /* if success and data is ready, fall thru to data input loop */
1358 !ber_sockbuf_ctrl( c->c_sb, LBER_SB_OPT_DATA_READY, NULL ) )
1360 connection_return( c );
1361 ldap_pvt_thread_mutex_unlock( &connections_mutex );
1367 #ifdef HAVE_CYRUS_SASL
1368 if ( c->c_sasl_layers ) {
1369 /* If previous layer is not removed yet, give up for now */
1370 if ( !c->c_sasl_sockctx ) {
1371 connection_return( c );
1372 ldap_pvt_thread_mutex_unlock( &connections_mutex );
1376 c->c_sasl_layers = 0;
1378 rc = ldap_pvt_sasl_install( c->c_sb, c->c_sasl_sockctx );
1380 if( rc != LDAP_SUCCESS ) {
1382 LDAP_LOG( CONNECTION, ERR,
1383 "connection_read: conn %lu SASL install error %d, closing\n",
1384 c->c_connid, rc, 0 );
1386 Debug( LDAP_DEBUG_TRACE,
1387 "connection_read(%d): SASL install error "
1388 "error=%d id=%lu, closing\n",
1389 s, rc, c->c_connid );
1391 /* connections_mutex and c_mutex are locked */
1392 connection_closing( c );
1393 connection_close( c );
1394 connection_return( c );
1395 ldap_pvt_thread_mutex_unlock( &connections_mutex );
1401 #define CONNECTION_INPUT_LOOP 1
1402 /* #define DATA_READY_LOOP 1 */
1405 /* How do we do this without getting into a busy loop ? */
1406 rc = connection_input( c );
1408 #ifdef DATA_READY_LOOP
1409 while( !rc && ber_sockbuf_ctrl( c->c_sb, LBER_SB_OPT_DATA_READY, NULL ));
1410 #elif CONNECTION_INPUT_LOOP
1418 LDAP_LOG( CONNECTION, ERR,
1419 "connection_read: conn %lu input error %d, closing.\n",
1420 c->c_connid, rc, 0 );
1422 Debug( LDAP_DEBUG_TRACE,
1423 "connection_read(%d): input error=%d id=%lu, closing.\n",
1424 s, rc, c->c_connid );
1426 /* connections_mutex and c_mutex are locked */
1427 connection_closing( c );
1428 connection_close( c );
1429 connection_return( c );
1430 ldap_pvt_thread_mutex_unlock( &connections_mutex );
1434 if ( ber_sockbuf_ctrl( c->c_sb, LBER_SB_OPT_NEEDS_READ, NULL ) ) {
1435 slapd_set_read( s, 1 );
1438 if ( ber_sockbuf_ctrl( c->c_sb, LBER_SB_OPT_NEEDS_WRITE, NULL ) ) {
1439 slapd_set_write( s, 1 );
1442 connection_return( c );
1443 ldap_pvt_thread_mutex_unlock( &connections_mutex );
1457 #ifdef LDAP_CONNECTIONLESS
1463 if ( conn->c_currentber == NULL &&
1464 ( conn->c_currentber = ber_alloc()) == NULL )
1467 LDAP_LOG( CONNECTION, ERR,
1468 "connection_input: conn %lu ber_alloc failed.\n",
1469 conn->c_connid, 0, 0 );
1471 Debug( LDAP_DEBUG_ANY, "ber_alloc failed\n", 0, 0, 0 );
1478 #ifdef LDAP_CONNECTIONLESS
1479 if ( conn->c_is_udp ) {
1480 char peername[sizeof("IP=255.255.255.255:65336")];
1481 len = ber_int_sb_read(conn->c_sb, &peeraddr,
1482 sizeof(struct sockaddr));
1483 if (len != sizeof(struct sockaddr))
1485 sprintf( peername, "IP=%s:%d",
1486 inet_ntoa( peeraddr.sa_in_addr.sin_addr ),
1487 (unsigned) ntohs( peeraddr.sa_in_addr.sin_port ) );
1488 Statslog( LDAP_DEBUG_STATS,
1489 "conn=%lu UDP request from %s (%s) accepted.\n",
1490 conn->c_connid, peername, conn->c_sock_name.bv_val, 0, 0 );
1493 tag = ber_get_next( conn->c_sb, &len, conn->c_currentber );
1494 if ( tag != LDAP_TAG_MESSAGE ) {
1498 ber_sockbuf_ctrl( conn->c_sb, LBER_SB_OPT_GET_FD, &sd );
1501 LDAP_LOG( CONNECTION, ERR,
1502 "connection_input: conn %lu ber_get_next failed, errno %d (%s).\n",
1503 conn->c_connid, err, sock_errstr(err) );
1505 Debug( LDAP_DEBUG_TRACE,
1506 "ber_get_next on fd %d failed errno=%d (%s)\n",
1507 sd, err, sock_errstr(err) );
1509 if ( err != EWOULDBLOCK && err != EAGAIN ) {
1510 /* log, close and send error */
1511 ber_free( conn->c_currentber, 1 );
1512 conn->c_currentber = NULL;
1519 ber = conn->c_currentber;
1520 conn->c_currentber = NULL;
1522 if ( (tag = ber_get_int( ber, &msgid )) != LDAP_TAG_MSGID ) {
1523 /* log, close and send error */
1525 LDAP_LOG( CONNECTION, ERR,
1526 "connection_input: conn %lu ber_get_int returns 0x%lx.\n",
1527 conn->c_connid, tag, 0 );
1529 Debug( LDAP_DEBUG_ANY, "ber_get_int returns 0x%lx\n",
1536 if ( (tag = ber_peek_tag( ber, &len )) == LBER_ERROR ) {
1537 /* log, close and send error */
1539 LDAP_LOG( CONNECTION, ERR,
1540 "connection_input: conn %lu ber_peek_tag returns 0x%lx.\n",
1541 conn->c_connid, tag, 0 );
1543 Debug( LDAP_DEBUG_ANY, "ber_peek_tag returns 0x%lx\n",
1551 #ifdef LDAP_CONNECTIONLESS
1552 if( conn->c_is_udp ) {
1553 if( tag == LBER_OCTETSTRING ) {
1554 ber_get_stringa( ber, &cdn );
1555 tag = ber_peek_tag(ber, &len);
1557 if( tag != LDAP_REQ_ABANDON && tag != LDAP_REQ_SEARCH ) {
1559 LDAP_LOG( CONNECTION, ERR,
1560 "connection_input: conn %lu invalid req for UDP 0x%lx.\n",
1561 conn->c_connid, tag, 0 );
1563 Debug( LDAP_DEBUG_ANY, "invalid req for UDP 0x%lx\n", tag, 0, 0 );
1570 if(tag == LDAP_REQ_BIND) {
1571 /* immediately abandon all exiting operations upon BIND */
1572 connection_abandon( conn );
1575 op = slap_op_alloc( ber, msgid, tag, conn->c_n_ops_received++ );
1578 op->o_assertion = NULL;
1579 op->o_preread_attrs = NULL;
1580 op->o_postread_attrs = NULL;
1581 op->o_vrFilter = NULL;
1582 /* clear state if the connection is being reused from inactive */
1583 if ( conn->c_conn_state == SLAP_C_INACTIVE ) {
1584 memset( &conn->c_pagedresults_state, 0, sizeof( conn->c_pagedresults_state ) );
1586 op->o_pagedresults_state = conn->c_pagedresults_state;
1588 op->o_res_ber = NULL;
1590 #ifdef LDAP_CONNECTIONLESS
1591 if (conn->c_is_udp) {
1593 ber_str2bv( cdn, 0, 1, &op->o_dn );
1594 op->o_protocol = LDAP_VERSION2;
1596 op->o_res_ber = ber_alloc_t( LBER_USE_DER );
1597 if (op->o_res_ber == NULL) return 1;
1599 rc = ber_write( op->o_res_ber, (char *)&peeraddr,
1600 sizeof(struct sockaddr), 0 );
1602 if (rc != sizeof(struct sockaddr)) {
1604 LDAP_LOG( CONNECTION, INFO,
1605 "connection_input: conn %lu ber_write failed\n",
1606 conn->c_connid, 0, 0 );
1608 Debug( LDAP_DEBUG_ANY, "ber_write failed\n", 0, 0, 0 );
1613 if (op->o_protocol == LDAP_VERSION2) {
1614 rc = ber_printf(op->o_res_ber, "{is{" /*}}*/, op->o_msgid, "");
1617 LDAP_LOG( CONNECTION, INFO,
1618 "connection_input: conn %lu put outer sequence failed\n",
1619 conn->c_connid, 0, 0 );
1621 Debug( LDAP_DEBUG_ANY, "ber_write failed\n", 0, 0, 0 );
1627 #endif /* LDAP_CONNECTIONLESS */
1631 /* Don't process requests when the conn is in the middle of a
1632 * Bind, or if it's closing. Also, don't let any single conn
1633 * use up all the available threads, and don't execute if we're
1634 * currently blocked on output. And don't execute if there are
1635 * already pending ops, let them go first. Abandon operations
1636 * get exceptions to some, but not all, cases.
1638 if (tag != LDAP_REQ_ABANDON && conn->c_conn_state == SLAP_C_CLOSING) {
1640 } else if (tag != LDAP_REQ_ABANDON && conn->c_writewaiter) {
1641 defer = "awaiting write";
1642 } else if (conn->c_n_ops_executing >= connection_pool_max/2) {
1643 defer = "too many executing";
1644 } else if (conn->c_conn_state == SLAP_C_BINDING) {
1646 } else if (tag != LDAP_REQ_ABANDON && conn->c_n_ops_pending) {
1647 defer = "pending operations";
1651 int max = conn->c_dn.bv_len
1652 ? slap_conn_max_pending_auth
1653 : slap_conn_max_pending;
1656 LDAP_LOG( CONNECTION, INFO,
1657 "connection_input: conn %lu deferring operation: %s\n",
1658 conn->c_connid, defer, 0 );
1660 Debug( LDAP_DEBUG_ANY,
1661 "connection_input: conn=%lu deferring operation: %s\n",
1662 conn->c_connid, defer, 0 );
1664 conn->c_n_ops_pending++;
1665 LDAP_STAILQ_INSERT_TAIL( &conn->c_pending_ops, op, o_next );
1666 if ( conn->c_n_ops_pending > max ) {
1672 conn->c_n_ops_executing++;
1673 connection_op_activate( op );
1677 if ( conn->c_struct_state != SLAP_C_USED ) {
1678 /* connection must have got closed underneath us */
1682 assert( conn->c_struct_state == SLAP_C_USED );
1688 connection_resched( Connection *conn )
1692 if( conn->c_conn_state == SLAP_C_CLOSING ) {
1695 ber_sockbuf_ctrl( conn->c_sb, LBER_SB_OPT_GET_FD, &sd );
1697 /* us trylock to avoid possible deadlock */
1698 rc = ldap_pvt_thread_mutex_trylock( &connections_mutex );
1702 LDAP_LOG( CONNECTION, DETAIL1,
1703 "connection_resched: conn %lu reaquiring locks.\n",
1704 conn->c_connid, 0, 0 );
1706 Debug( LDAP_DEBUG_TRACE,
1707 "connection_resched: reaquiring locks conn=%lu sd=%d\n",
1708 conn->c_connid, sd, 0 );
1711 * reaquire locks in the right order...
1712 * this may allow another thread to close this connection,
1713 * so recheck state below.
1715 ldap_pvt_thread_mutex_unlock( &conn->c_mutex );
1716 ldap_pvt_thread_mutex_lock( &connections_mutex );
1717 ldap_pvt_thread_mutex_lock( &conn->c_mutex );
1720 if( conn->c_conn_state != SLAP_C_CLOSING ) {
1722 LDAP_LOG( CONNECTION, INFO,
1723 "connection_resched: conn %lu closed by other thread.\n",
1724 conn->c_connid, 0, 0 );
1726 Debug( LDAP_DEBUG_TRACE, "connection_resched: "
1727 "closed by other thread conn=%lu sd=%d\n",
1728 conn->c_connid, sd, 0 );
1732 LDAP_LOG( CONNECTION, DETAIL1,
1733 "connection_resched: conn %lu attempting closing.\n",
1734 conn->c_connid, 0, 0 );
1736 Debug( LDAP_DEBUG_TRACE, "connection_resched: "
1737 "attempting closing conn=%lu sd=%d\n",
1738 conn->c_connid, sd, 0 );
1740 connection_close( conn );
1743 ldap_pvt_thread_mutex_unlock( &connections_mutex );
1747 if( conn->c_conn_state != SLAP_C_ACTIVE || conn->c_writewaiter ) {
1748 /* other states need different handling */
1752 while ((op = LDAP_STAILQ_FIRST( &conn->c_pending_ops )) != NULL) {
1753 if ( conn->c_n_ops_executing > connection_pool_max/2 ) {
1756 LDAP_STAILQ_REMOVE_HEAD( &conn->c_pending_ops, o_next );
1757 LDAP_STAILQ_NEXT(op, o_next) = NULL;
1758 /* pending operations should not be marked for abandonment */
1759 assert(!op->o_abandon);
1761 conn->c_n_ops_pending--;
1762 conn->c_n_ops_executing++;
1764 connection_op_activate( op );
1766 if ( conn->c_conn_state == SLAP_C_BINDING ) {
1773 static int connection_op_activate( Operation *op )
1776 ber_tag_t tag = op->o_tag;
1778 if(tag == LDAP_REQ_BIND) {
1779 op->o_conn->c_conn_state = SLAP_C_BINDING;
1782 if (!op->o_dn.bv_len) {
1783 op->o_authz = op->o_conn->c_authz;
1784 ber_dupbv( &op->o_dn, &op->o_conn->c_dn );
1785 ber_dupbv( &op->o_ndn, &op->o_conn->c_ndn );
1787 op->o_authtype = op->o_conn->c_authtype;
1788 ber_dupbv( &op->o_authmech, &op->o_conn->c_authmech );
1790 if (!op->o_protocol) {
1791 op->o_protocol = op->o_conn->c_protocol
1792 ? op->o_conn->c_protocol : LDAP_VERSION3;
1794 if (op->o_conn->c_conn_state == SLAP_C_INACTIVE
1795 && op->o_protocol > LDAP_VERSION2)
1797 op->o_conn->c_conn_state = SLAP_C_ACTIVE;
1800 op->o_connid = op->o_conn->c_connid;
1802 LDAP_STAILQ_INSERT_TAIL( &op->o_conn->c_ops, op, o_next );
1804 status = ldap_pvt_thread_pool_submit( &connection_pool,
1805 connection_operation, (void *) op );
1807 if ( status != 0 ) {
1809 LDAP_LOG( CONNECTION, ERR,
1810 "connection_op_activate: conn %lu thread pool submit failed.\n",
1811 op->o_connid, 0, 0 );
1813 Debug( LDAP_DEBUG_ANY,
1814 "ldap_pvt_thread_pool_submit: failed (%d) for conn=%lu\n",
1815 status, op->o_connid, 0 );
1817 /* should move op to pending list */
1823 int connection_write(ber_socket_t s)
1827 assert( connections != NULL );
1829 ldap_pvt_thread_mutex_lock( &connections_mutex );
1831 c = connection_get( s );
1833 slapd_clr_write( s, 0);
1837 LDAP_LOG( CONNECTION, ERR,
1838 "connection_write: sock %ld no connection!\n", (long)s, 0, 0);
1840 Debug( LDAP_DEBUG_ANY,
1841 "connection_write(%ld): no connection!\n",
1844 slapd_remove(s, 1, 0);
1845 ldap_pvt_thread_mutex_unlock( &connections_mutex );
1852 LDAP_LOG( CONNECTION, DETAIL1,
1853 "connection_write conn %lu waking output.\n", c->c_connid, 0, 0 );
1855 Debug( LDAP_DEBUG_TRACE,
1856 "connection_write(%d): waking output for id=%lu\n",
1857 s, c->c_connid, 0 );
1859 ldap_pvt_thread_cond_signal( &c->c_write_cv );
1861 if ( ber_sockbuf_ctrl( c->c_sb, LBER_SB_OPT_NEEDS_READ, NULL ) ) {
1862 slapd_set_read( s, 1 );
1864 if ( ber_sockbuf_ctrl( c->c_sb, LBER_SB_OPT_NEEDS_WRITE, NULL ) ) {
1865 slapd_set_write( s, 1 );
1867 connection_return( c );
1868 ldap_pvt_thread_mutex_unlock( &connections_mutex );
1873 connection_fake_init(
1878 conn->c_connid = -1;
1879 conn->c_send_ldap_result = slap_send_ldap_result;
1880 conn->c_send_search_entry = slap_send_search_entry;
1881 conn->c_send_search_reference = slap_send_search_reference;
1882 conn->c_listener = (Listener *)&dummy_list;
1883 conn->c_peer_domain = slap_empty_bv;
1884 conn->c_peer_name = slap_empty_bv;
1886 /* set memory context */
1887 op->o_tmpmemctx = slap_sl_mem_create( SLAP_SLAB_SIZE, ctx );
1888 op->o_tmpmfuncs = &slap_sl_mfuncs;
1889 op->o_threadctx = ctx;
1892 op->o_connid = op->o_conn->c_connid;
1894 op->o_time = slap_get_time();