3 * Copyright 1998-2003 The OpenLDAP Foundation, All Rights Reserved.
4 * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
12 #include <ac/socket.h>
14 #include <ac/string.h>
16 #include <ac/unistd.h>
26 /* protected by connections_mutex */
27 static ldap_pvt_thread_mutex_t connections_mutex;
28 static Connection *connections = NULL;
29 static unsigned long conn_nextid = 0;
31 /* structure state (protected by connections_mutex) */
32 #define SLAP_C_UNINITIALIZED 0x00 /* MUST BE ZERO (0) */
33 #define SLAP_C_UNUSED 0x01
34 #define SLAP_C_USED 0x02
36 /* connection state (protected by c_mutex ) */
37 #define SLAP_C_INVALID 0x00 /* MUST BE ZERO (0) */
38 #define SLAP_C_INACTIVE 0x01 /* zero threads */
39 #define SLAP_C_ACTIVE 0x02 /* one or more threads */
40 #define SLAP_C_BINDING 0x03 /* binding */
41 #define SLAP_C_CLOSING 0x04 /* closing */
42 #define SLAP_C_CLIENT 0x05 /* outbound client conn */
45 connection_state2str( int state )
48 case SLAP_C_INVALID: return "!";
49 case SLAP_C_INACTIVE: return "|";
50 case SLAP_C_ACTIVE: return "";
51 case SLAP_C_BINDING: return "B";
52 case SLAP_C_CLOSING: return "C";
53 case SLAP_C_CLIENT: return "L";
59 static Connection* connection_get( ber_socket_t s );
61 static int connection_input( Connection *c );
62 static void connection_close( Connection *c );
64 static int connection_op_activate( Operation *op );
65 static int connection_resched( Connection *conn );
66 static void connection_abandon( Connection *conn );
67 static void connection_destroy( Connection *c );
69 static ldap_pvt_thread_start_t connection_operation;
72 * Initialize connection management infrastructure.
74 int connections_init(void)
76 assert( connections == NULL );
78 if( connections != NULL) {
80 LDAP_LOG( CONNECTION, INFO,
81 "connections_init: already initialized.\n", 0, 0, 0 );
83 Debug( LDAP_DEBUG_ANY, "connections_init: already initialized.\n",
89 /* should check return of every call */
90 ldap_pvt_thread_mutex_init( &connections_mutex );
92 connections = (Connection *) ch_calloc( dtblsize, sizeof(Connection) );
94 if( connections == NULL ) {
96 LDAP_LOG( CONNECTION, ERR,
97 "connections_init: allocation (%d * %ld) of connection "
98 "array failed\n", dtblsize, (long) sizeof(Connection), 0 );
100 Debug( LDAP_DEBUG_ANY,
101 "connections_init: allocation (%d*%ld) of connection array failed\n",
102 dtblsize, (long) sizeof(Connection), 0 );
107 assert( connections[0].c_struct_state == SLAP_C_UNINITIALIZED );
108 assert( connections[dtblsize-1].c_struct_state == SLAP_C_UNINITIALIZED );
111 * per entry initialization of the Connection array initialization
112 * will be done by connection_init()
119 * Destroy connection management infrastructure.
121 int connections_destroy(void)
125 /* should check return of every call */
127 if( connections == NULL) {
129 LDAP_LOG( CONNECTION, INFO,
130 "connections_destroy: nothing to destroy.\n", 0, 0, 0 );
132 Debug( LDAP_DEBUG_ANY, "connections_destroy: nothing to destroy.\n",
138 for ( i = 0; i < dtblsize; i++ ) {
139 if( connections[i].c_struct_state != SLAP_C_UNINITIALIZED ) {
140 ber_sockbuf_free( connections[i].c_sb );
141 ldap_pvt_thread_mutex_destroy( &connections[i].c_mutex );
142 ldap_pvt_thread_mutex_destroy( &connections[i].c_write_mutex );
143 ldap_pvt_thread_cond_destroy( &connections[i].c_write_cv );
145 if ( slapi_plugins_used ) {
146 slapi_x_free_object_extensions( SLAPI_X_EXT_CONNECTION, &connections[i] );
155 ldap_pvt_thread_mutex_destroy( &connections_mutex );
160 * shutdown all connections
162 int connections_shutdown(void)
166 ldap_pvt_thread_mutex_lock( &connections_mutex );
168 for ( i = 0; i < dtblsize; i++ ) {
169 if( connections[i].c_struct_state != SLAP_C_USED ) {
172 /* give persistent clients a chance to cleanup */
173 if( connections[i].c_conn_state == SLAP_C_CLIENT ) {
174 ldap_pvt_thread_pool_submit( &connection_pool,
175 connections[i].c_clientfunc, connections[i].c_clientarg );
179 ldap_pvt_thread_mutex_lock( &connections[i].c_mutex );
181 /* connections_mutex and c_mutex are locked */
182 connection_closing( &connections[i] );
183 connection_close( &connections[i] );
185 ldap_pvt_thread_mutex_unlock( &connections[i].c_mutex );
188 ldap_pvt_thread_mutex_unlock( &connections_mutex );
194 * Timeout idle connections.
196 int connections_timeout_idle(time_t now)
202 for( c = connection_first( &connindex );
204 c = connection_next( c, &connindex ) )
206 /* Don't timeout a slow-running request or a persistent
207 * outbound connection */
208 if( c->c_n_ops_executing ||
209 c->c_conn_state == SLAP_C_CLIENT ) continue;
211 if( difftime( c->c_activitytime+global_idletimeout, now) < 0 ) {
213 connection_closing( c );
214 connection_close( c );
218 connection_done( c );
223 static Connection* connection_get( ber_socket_t s )
225 /* connections_mutex should be locked by caller */
230 LDAP_LOG( CONNECTION, ENTRY, "connection_get: socket %ld\n", (long)s, 0, 0 );
232 Debug( LDAP_DEBUG_ARGS,
233 "connection_get(%ld)\n",
237 assert( connections != NULL );
239 if(s == AC_SOCKET_INVALID) {
246 assert( c->c_struct_state != SLAP_C_UNINITIALIZED );
253 for(i=0; i<dtblsize; i++) {
254 if( connections[i].c_struct_state == SLAP_C_UNINITIALIZED ) {
255 assert( connections[i].c_conn_state == SLAP_C_INVALID );
256 assert( connections[i].c_sb == 0 );
260 ber_sockbuf_ctrl( connections[i].c_sb,
261 LBER_SB_OPT_GET_FD, &sd );
263 if( connections[i].c_struct_state == SLAP_C_UNUSED ) {
264 assert( connections[i].c_conn_state == SLAP_C_INVALID );
265 assert( sd == AC_SOCKET_INVALID );
269 /* state can actually change from used -> unused by resched,
270 * so don't assert details here.
284 ldap_pvt_thread_mutex_lock( &c->c_mutex );
286 ber_sockbuf_ctrl( c->c_sb, LBER_SB_OPT_GET_FD, &sd );
287 if( c->c_struct_state != SLAP_C_USED ) {
288 /* connection must have been closed due to resched */
290 assert( c->c_conn_state == SLAP_C_INVALID );
291 assert( sd == AC_SOCKET_INVALID );
294 LDAP_LOG( CONNECTION, ARGS,
295 "connection_get: connection %d not used\n", s, 0, 0 );
297 Debug( LDAP_DEBUG_TRACE,
298 "connection_get(%d): connection not used\n",
302 ldap_pvt_thread_mutex_unlock( &c->c_mutex );
305 if( c->c_conn_state == SLAP_C_CLIENT ) sd = 0;
308 LDAP_LOG( CONNECTION, RESULTS,
309 "connection_get: get for %d got connid %lu\n", s, c->c_connid, 0 );
311 Debug( LDAP_DEBUG_TRACE,
312 "connection_get(%d): got connid=%lu\n",
318 assert( c->c_struct_state == SLAP_C_USED );
319 assert( c->c_conn_state != SLAP_C_INVALID );
320 assert( sd != AC_SOCKET_INVALID );
323 c->c_activitytime = slap_get_time();
325 if( global_idletimeout > 0 ) {
326 c->c_activitytime = slap_get_time();
334 static void connection_return( Connection *c )
336 ldap_pvt_thread_mutex_unlock( &c->c_mutex );
339 long connection_init(
343 const char* peername,
351 assert( connections != NULL );
353 assert( listener != NULL );
354 assert( dnsname != NULL );
355 assert( peername != NULL );
358 assert( flags != CONN_IS_TLS );
361 if( s == AC_SOCKET_INVALID ) {
363 LDAP_LOG( CONNECTION, INFO,
364 "connection_init: init of socket %ld invalid.\n", (long)s, 0, 0 );
366 Debug( LDAP_DEBUG_ANY,
367 "connection_init: init of socket %ld invalid.\n", (long)s, 0, 0 );
374 assert( s < dtblsize );
377 ldap_pvt_thread_mutex_lock( &connections_mutex );
387 for( i=0; i < dtblsize; i++) {
390 if( connections[i].c_struct_state == SLAP_C_UNINITIALIZED ) {
391 assert( connections[i].c_sb == 0 );
396 sd = AC_SOCKET_INVALID;
397 if (connections[i].c_sb != NULL) {
398 ber_sockbuf_ctrl( connections[i].c_sb,
399 LBER_SB_OPT_GET_FD, &sd );
402 if( connections[i].c_struct_state == SLAP_C_UNUSED ) {
403 assert( sd == AC_SOCKET_INVALID );
408 assert( connections[i].c_struct_state == SLAP_C_USED );
409 assert( connections[i].c_conn_state != SLAP_C_INVALID );
410 assert( sd != AC_SOCKET_INVALID );
415 LDAP_LOG( CONNECTION, INFO,
416 "connection_init(%d): connection table full "
417 "(%d/%d)\n", s, i, dtblsize );
419 Debug( LDAP_DEBUG_ANY,
420 "connection_init(%d): connection table full "
421 "(%d/%d)\n", s, i, dtblsize);
423 ldap_pvt_thread_mutex_unlock( &connections_mutex );
431 if( c->c_struct_state == SLAP_C_UNINITIALIZED ) {
432 c->c_send_ldap_result = slap_send_ldap_result;
433 c->c_send_search_entry = slap_send_search_entry;
434 c->c_send_search_reference = slap_send_search_reference;
435 c->c_send_ldap_extended = slap_send_ldap_extended;
436 #ifdef LDAP_RES_INTERMEDIATE
437 c->c_send_ldap_intermediate = slap_send_ldap_intermediate;
440 c->c_authmech.bv_val = NULL;
441 c->c_authmech.bv_len = 0;
442 c->c_dn.bv_val = NULL;
444 c->c_ndn.bv_val = NULL;
447 c->c_listener = NULL;
448 c->c_peer_domain.bv_val = NULL;
449 c->c_peer_domain.bv_len = 0;
450 c->c_peer_name.bv_val = NULL;
451 c->c_peer_name.bv_len = 0;
453 LDAP_STAILQ_INIT(&c->c_ops);
454 LDAP_STAILQ_INIT(&c->c_pending_ops);
456 c->c_sasl_bind_mech.bv_val = NULL;
457 c->c_sasl_bind_mech.bv_len = 0;
459 c->c_sasl_authctx = NULL;
460 c->c_sasl_sockctx = NULL;
461 c->c_sasl_extra = NULL;
462 c->c_sasl_bindop = NULL;
464 c->c_sb = ber_sockbuf_alloc( );
467 ber_len_t max = sockbuf_max_incoming;
468 ber_sockbuf_ctrl( c->c_sb, LBER_SB_OPT_SET_MAX_INCOMING, &max );
471 c->c_currentber = NULL;
473 /* should check status of thread calls */
474 ldap_pvt_thread_mutex_init( &c->c_mutex );
475 ldap_pvt_thread_mutex_init( &c->c_write_mutex );
476 ldap_pvt_thread_cond_init( &c->c_write_cv );
479 if ( slapi_plugins_used ) {
480 slapi_x_create_object_extensions( SLAPI_X_EXT_CONNECTION, c );
484 c->c_struct_state = SLAP_C_UNUSED;
487 ldap_pvt_thread_mutex_lock( &c->c_mutex );
489 assert( c->c_struct_state == SLAP_C_UNUSED );
490 assert( c->c_authmech.bv_val == NULL );
491 assert( c->c_dn.bv_val == NULL );
492 assert( c->c_ndn.bv_val == NULL );
493 assert( c->c_listener == NULL );
494 assert( c->c_peer_domain.bv_val == NULL );
495 assert( c->c_peer_name.bv_val == NULL );
496 assert( LDAP_STAILQ_EMPTY(&c->c_ops) );
497 assert( LDAP_STAILQ_EMPTY(&c->c_pending_ops) );
498 assert( c->c_sasl_bind_mech.bv_val == NULL );
499 assert( c->c_sasl_done == 0 );
500 assert( c->c_sasl_authctx == NULL );
501 assert( c->c_sasl_sockctx == NULL );
502 assert( c->c_sasl_extra == NULL );
503 assert( c->c_sasl_bindop == NULL );
504 assert( c->c_currentber == NULL );
506 c->c_listener = listener;
508 if ( flags == CONN_IS_CLIENT ) {
509 c->c_conn_state = SLAP_C_CLIENT;
510 c->c_struct_state = SLAP_C_USED;
511 ldap_pvt_thread_mutex_unlock( &c->c_mutex );
512 ldap_pvt_thread_mutex_unlock( &connections_mutex );
517 ber_str2bv( dnsname, 0, 1, &c->c_peer_domain );
518 ber_str2bv( peername, 0, 1, &c->c_peer_name );
520 c->c_n_ops_received = 0;
521 c->c_n_ops_executing = 0;
522 c->c_n_ops_pending = 0;
523 c->c_n_ops_completed = 0;
528 c->c_writewaiter = 0;
530 /* set to zero until bind, implies LDAP_VERSION3 */
534 c->c_activitytime = c->c_starttime = slap_get_time();
536 if( global_idletimeout > 0 ) {
537 c->c_activitytime = c->c_starttime = slap_get_time();
541 #ifdef LDAP_CONNECTIONLESS
543 if( flags == CONN_IS_UDP ) {
546 ber_sockbuf_add_io( c->c_sb, &ber_sockbuf_io_debug,
547 LBER_SBIOD_LEVEL_PROVIDER, (void*)"udp_" );
549 ber_sockbuf_add_io( c->c_sb, &ber_sockbuf_io_udp,
550 LBER_SBIOD_LEVEL_PROVIDER, (void *)&s );
551 ber_sockbuf_add_io( c->c_sb, &ber_sockbuf_io_readahead,
552 LBER_SBIOD_LEVEL_PROVIDER, NULL );
557 ber_sockbuf_add_io( c->c_sb, &ber_sockbuf_io_debug,
558 LBER_SBIOD_LEVEL_PROVIDER, (void*)"tcp_" );
560 ber_sockbuf_add_io( c->c_sb, &ber_sockbuf_io_tcp,
561 LBER_SBIOD_LEVEL_PROVIDER, (void *)&s );
565 ber_sockbuf_add_io( c->c_sb, &ber_sockbuf_io_debug,
566 INT_MAX, (void*)"ldap_" );
569 if( ber_sockbuf_ctrl( c->c_sb, LBER_SB_OPT_SET_NONBLOCK,
570 c /* non-NULL */ ) < 0 )
573 LDAP_LOG( CONNECTION, INFO,
574 "connection_init: conn %lu set nonblocking failed\n",
577 Debug( LDAP_DEBUG_ANY,
578 "connection_init(%d, %s): set nonblocking failed\n",
579 s, c->c_peer_name.bv_val, 0 );
583 id = c->c_connid = conn_nextid++;
585 c->c_conn_state = SLAP_C_INACTIVE;
586 c->c_struct_state = SLAP_C_USED;
588 c->c_ssf = c->c_transport_ssf = ssf;
592 if ( flags == CONN_IS_TLS ) {
594 c->c_needs_tls_accept = 1;
597 c->c_needs_tls_accept = 0;
601 slap_sasl_open( c, 0 );
602 slap_sasl_external( c, ssf, authid );
604 ldap_pvt_thread_mutex_unlock( &c->c_mutex );
605 ldap_pvt_thread_mutex_unlock( &connections_mutex );
607 backend_connection_init(c);
612 void connection2anonymous( Connection *c )
614 assert( connections != NULL );
618 ber_len_t max = sockbuf_max_incoming;
619 ber_sockbuf_ctrl( c->c_sb, LBER_SB_OPT_SET_MAX_INCOMING, &max );
622 if(c->c_authmech.bv_val != NULL ) {
623 free(c->c_authmech.bv_val);
624 c->c_authmech.bv_val = NULL;
626 c->c_authmech.bv_len = 0;
628 if(c->c_dn.bv_val != NULL) {
629 free(c->c_dn.bv_val);
630 c->c_dn.bv_val = NULL;
633 if(c->c_ndn.bv_val != NULL) {
634 free(c->c_ndn.bv_val);
635 c->c_ndn.bv_val = NULL;
639 c->c_authz_backend = NULL;
643 connection_destroy( Connection *c )
645 /* note: connections_mutex should be locked by caller */
647 unsigned long connid;
649 assert( connections != NULL );
651 assert( c->c_struct_state != SLAP_C_UNUSED );
652 assert( c->c_conn_state != SLAP_C_INVALID );
653 assert( LDAP_STAILQ_EMPTY(&c->c_ops) );
655 /* only for stats (print -1 as "%lu" may give unexpected results ;) */
656 connid = c->c_connid;
658 backend_connection_destroy(c);
663 c->c_activitytime = c->c_starttime = 0;
665 connection2anonymous( c );
666 c->c_listener = NULL;
668 if(c->c_peer_domain.bv_val != NULL) {
669 free(c->c_peer_domain.bv_val);
670 c->c_peer_domain.bv_val = NULL;
672 c->c_peer_domain.bv_len = 0;
673 if(c->c_peer_name.bv_val != NULL) {
674 free(c->c_peer_name.bv_val);
675 c->c_peer_name.bv_val = NULL;
677 c->c_peer_name.bv_len = 0;
679 c->c_sasl_bind_in_progress = 0;
680 if(c->c_sasl_bind_mech.bv_val != NULL) {
681 free(c->c_sasl_bind_mech.bv_val);
682 c->c_sasl_bind_mech.bv_val = NULL;
684 c->c_sasl_bind_mech.bv_len = 0;
686 slap_sasl_close( c );
688 if ( c->c_currentber != NULL ) {
689 ber_free( c->c_currentber, 1 );
690 c->c_currentber = NULL;
693 ber_sockbuf_ctrl( c->c_sb, LBER_SB_OPT_GET_FD, &sd );
694 if ( sd != AC_SOCKET_INVALID ) {
695 slapd_remove( sd, 1, 0 );
697 Statslog( LDAP_DEBUG_STATS,
698 "conn=%lu fd=%ld closed\n",
699 connid, (long) sd, 0, 0, 0 );
702 ber_sockbuf_free( c->c_sb );
704 c->c_sb = ber_sockbuf_alloc( );
707 ber_len_t max = sockbuf_max_incoming;
708 ber_sockbuf_ctrl( c->c_sb, LBER_SB_OPT_SET_MAX_INCOMING, &max );
711 c->c_conn_state = SLAP_C_INVALID;
712 c->c_struct_state = SLAP_C_UNUSED;
715 /* call destructors, then constructors; avoids unnecessary allocation */
716 if ( slapi_plugins_used ) {
717 slapi_x_clear_object_extensions( SLAPI_X_EXT_CONNECTION, c );
722 int connection_state_closing( Connection *c )
724 /* c_mutex must be locked by caller */
728 assert( c->c_struct_state == SLAP_C_USED );
730 state = c->c_conn_state;
732 assert( state != SLAP_C_INVALID );
734 return state == SLAP_C_CLOSING;
737 static void connection_abandon( Connection *c )
739 /* c_mutex must be locked by caller */
743 LDAP_STAILQ_FOREACH(o, &c->c_ops, o_next) {
747 /* remove pending operations */
748 while ( (o = LDAP_STAILQ_FIRST( &c->c_pending_ops )) != NULL) {
749 LDAP_STAILQ_REMOVE_HEAD( &c->c_pending_ops, o_next );
750 LDAP_STAILQ_NEXT(o, o_next) = NULL;
755 void connection_closing( Connection *c )
757 assert( connections != NULL );
759 assert( c->c_struct_state == SLAP_C_USED );
760 assert( c->c_conn_state != SLAP_C_INVALID );
762 /* c_mutex must be locked by caller */
764 if( c->c_conn_state != SLAP_C_CLOSING ) {
767 ber_sockbuf_ctrl( c->c_sb, LBER_SB_OPT_GET_FD, &sd );
769 LDAP_LOG( CONNECTION, DETAIL1,
770 "connection_closing: conn %lu readying socket %d for close.\n",
771 c->c_connid, sd, 0 );
773 Debug( LDAP_DEBUG_TRACE,
774 "connection_closing: readying conn=%lu sd=%d for close\n",
775 c->c_connid, sd, 0 );
777 /* update state to closing */
778 c->c_conn_state = SLAP_C_CLOSING;
780 /* don't listen on this port anymore */
781 slapd_clr_read( sd, 1 );
783 /* abandon active operations */
784 connection_abandon( c );
786 /* wake write blocked operations */
787 slapd_clr_write( sd, 1 );
788 ldap_pvt_thread_cond_signal( &c->c_write_cv );
792 static void connection_close( Connection *c )
796 assert( connections != NULL );
798 assert( c->c_struct_state == SLAP_C_USED );
799 assert( c->c_conn_state == SLAP_C_CLOSING );
801 /* note: connections_mutex and c_mutex should be locked by caller */
803 ber_sockbuf_ctrl( c->c_sb, LBER_SB_OPT_GET_FD, &sd );
804 if( !LDAP_STAILQ_EMPTY(&c->c_ops) ) {
806 LDAP_LOG( CONNECTION, DETAIL1,
807 "connection_close: conn %lu deferring sd %d\n",
808 c->c_connid, sd, 0 );
810 Debug( LDAP_DEBUG_TRACE,
811 "connection_close: deferring conn=%lu sd=%d\n",
812 c->c_connid, sd, 0 );
818 LDAP_LOG( CONNECTION, RESULTS,
819 "connection_close: conn %lu sd %d\n", c->c_connid, sd, 0 );
821 Debug( LDAP_DEBUG_TRACE, "connection_close: conn=%lu sd=%d\n",
822 c->c_connid, sd, 0 );
824 connection_destroy( c );
827 unsigned long connections_nextid(void)
830 assert( connections != NULL );
832 ldap_pvt_thread_mutex_lock( &connections_mutex );
836 ldap_pvt_thread_mutex_unlock( &connections_mutex );
841 Connection* connection_first( ber_socket_t *index )
843 assert( connections != NULL );
844 assert( index != NULL );
846 ldap_pvt_thread_mutex_lock( &connections_mutex );
850 return connection_next(NULL, index);
853 Connection* connection_next( Connection *c, ber_socket_t *index )
855 assert( connections != NULL );
856 assert( index != NULL );
857 assert( *index <= dtblsize );
860 ldap_pvt_thread_mutex_unlock( &c->c_mutex );
865 for(; *index < dtblsize; (*index)++) {
866 if( connections[*index].c_struct_state == SLAP_C_UNINITIALIZED ) {
867 assert( connections[*index].c_conn_state == SLAP_C_INVALID );
875 if( connections[*index].c_struct_state == SLAP_C_USED ) {
876 assert( connections[*index].c_conn_state != SLAP_C_INVALID );
877 c = &connections[(*index)++];
881 assert( connections[*index].c_struct_state == SLAP_C_UNUSED );
882 assert( connections[*index].c_conn_state == SLAP_C_INVALID );
886 ldap_pvt_thread_mutex_lock( &c->c_mutex );
892 void connection_done( Connection *c )
894 assert( connections != NULL );
897 ldap_pvt_thread_mutex_unlock( &c->c_mutex );
900 ldap_pvt_thread_mutex_unlock( &connections_mutex );
904 * connection_activity - handle the request operation op on connection
905 * conn. This routine figures out what kind of operation it is and
906 * calls the appropriate stub to handle it.
910 #define INCR_OP(var,index) \
912 ldap_pvt_thread_mutex_lock( &num_ops_mutex ); \
914 ldap_pvt_thread_mutex_unlock( &num_ops_mutex ); \
916 #else /* !SLAPD_MONITOR */
917 #define INCR_OP(var,index)
918 #endif /* !SLAPD_MONITOR */
921 connection_operation( void *ctx, void *arg_v )
923 int rc = SLAPD_DISCONNECT;
924 Operation *op = arg_v;
925 SlapReply rs = {REP_RESULT};
926 ber_tag_t tag = op->o_tag;
928 ber_tag_t oldtag = tag;
929 #endif /* SLAPD_MONITOR */
930 Connection *conn = op->o_conn;
932 void *memctx_null = NULL;
935 ldap_pvt_thread_mutex_lock( &num_ops_mutex );
937 ldap_pvt_thread_mutex_unlock( &num_ops_mutex );
939 op->o_threadctx = ctx;
941 if( conn->c_sasl_bind_in_progress && tag != LDAP_REQ_BIND ) {
943 LDAP_LOG( CONNECTION, ERR,
944 "connection_operation: conn %lu SASL bind in progress (tag=%ld).\n",
945 conn->c_connid, (long)tag, 0 );
947 Debug( LDAP_DEBUG_ANY, "connection_operation: "
948 "error: SASL bind in progress (tag=%ld).\n",
951 send_ldap_error( op, &rs, LDAP_OPERATIONS_ERROR,
952 "SASL bind in progress" );
953 goto operations_error;
956 /* We can use Thread-Local storage for most mallocs. We can
957 * also use TL for ber parsing, but not on Add or Modify.
959 #define SLAB_SIZE 1048576
961 memsiz = ber_len( op->o_ber ) * 64;
962 if ( SLAB_SIZE > memsiz ) memsiz = SLAB_SIZE;
966 memctx = sl_mem_create( memsiz, ctx );
967 op->o_tmpmemctx = memctx;
968 op->o_tmpmfuncs = &sl_mfuncs;
969 if ( tag != LDAP_REQ_ADD && tag != LDAP_REQ_MODIFY ) {
970 /* Note - the ber and its buffer are already allocated from
971 * regular memory; this only affects subsequent mallocs that
972 * ber_scanf may invoke.
974 ber_set_option( op->o_ber, LBER_OPT_BER_MEMCTX, &memctx );
979 INCR_OP(num_ops_initiated_, SLAP_OP_BIND);
980 rc = do_bind( op, &rs );
983 case LDAP_REQ_UNBIND:
984 INCR_OP(num_ops_initiated_, SLAP_OP_UNBIND);
985 rc = do_unbind( op, &rs );
989 INCR_OP(num_ops_initiated_, SLAP_OP_ADD);
990 rc = do_add( op, &rs );
993 case LDAP_REQ_DELETE:
994 INCR_OP(num_ops_initiated_, SLAP_OP_DELETE);
995 rc = do_delete( op, &rs );
998 case LDAP_REQ_MODRDN:
999 INCR_OP(num_ops_initiated_, SLAP_OP_MODRDN);
1000 rc = do_modrdn( op, &rs );
1003 case LDAP_REQ_MODIFY:
1004 INCR_OP(num_ops_initiated_, SLAP_OP_MODIFY);
1005 rc = do_modify( op, &rs );
1008 case LDAP_REQ_COMPARE:
1009 INCR_OP(num_ops_initiated_, SLAP_OP_COMPARE);
1010 rc = do_compare( op, &rs );
1013 case LDAP_REQ_SEARCH:
1014 INCR_OP(num_ops_initiated_, SLAP_OP_SEARCH);
1015 rc = do_search( op, &rs );
1018 case LDAP_REQ_ABANDON:
1019 INCR_OP(num_ops_initiated_, SLAP_OP_ABANDON);
1020 rc = do_abandon( op, &rs );
1023 case LDAP_REQ_EXTENDED:
1024 INCR_OP(num_ops_initiated_, SLAP_OP_EXTENDED);
1025 rc = do_extended( op, &rs );
1030 LDAP_LOG( CONNECTION, INFO,
1031 "connection_operation: conn %lu unknown LDAP request 0x%lx\n",
1032 conn->c_connid, tag, 0 );
1034 Debug( LDAP_DEBUG_ANY, "unknown LDAP request 0x%lx\n",
1037 op->o_tag = LBER_ERROR;
1038 rs.sr_err = LDAP_PROTOCOL_ERROR;
1039 rs.sr_text = "unknown LDAP request";
1040 send_ldap_disconnect( op, &rs );
1045 #ifdef SLAPD_MONITOR
1047 #endif /* SLAPD_MONITOR */
1048 if( rc == SLAPD_DISCONNECT ) tag = LBER_ERROR;
1051 ldap_pvt_thread_mutex_lock( &num_ops_mutex );
1052 num_ops_completed++;
1053 #ifdef SLAPD_MONITOR
1056 num_ops_completed_[SLAP_OP_BIND]++;
1058 case LDAP_REQ_UNBIND:
1059 num_ops_completed_[SLAP_OP_UNBIND]++;
1062 num_ops_completed_[SLAP_OP_ADD]++;
1064 case LDAP_REQ_DELETE:
1065 num_ops_completed_[SLAP_OP_DELETE]++;
1067 case LDAP_REQ_MODRDN:
1068 num_ops_completed_[SLAP_OP_MODRDN]++;
1070 case LDAP_REQ_MODIFY:
1071 num_ops_completed_[SLAP_OP_MODIFY]++;
1073 case LDAP_REQ_COMPARE:
1074 num_ops_completed_[SLAP_OP_COMPARE]++;
1076 case LDAP_REQ_SEARCH:
1077 num_ops_completed_[SLAP_OP_SEARCH]++;
1079 case LDAP_REQ_ABANDON:
1080 num_ops_completed_[SLAP_OP_ABANDON]++;
1082 case LDAP_REQ_EXTENDED:
1083 num_ops_completed_[SLAP_OP_EXTENDED]++;
1086 #endif /* SLAPD_MONITOR */
1087 ldap_pvt_thread_mutex_unlock( &num_ops_mutex );
1089 #ifdef LDAP_EXOP_X_CANCEL
1090 if ( op->o_cancel == SLAP_CANCEL_REQ ) {
1091 op->o_cancel = LDAP_TOO_LATE;
1094 while ( op->o_cancel != SLAP_CANCEL_NONE &&
1095 op->o_cancel != SLAP_CANCEL_DONE )
1097 ldap_pvt_thread_yield();
1101 ldap_pvt_thread_mutex_lock( &conn->c_mutex );
1103 ber_set_option( op->o_ber, LBER_OPT_BER_MEMCTX, &memctx_null );
1105 if ( op->o_cancel != SLAP_CANCEL_ACK &&
1106 ( op->o_sync_mode & SLAP_SYNC_PERSIST ) ) {
1107 sl_mem_detach( ctx, memctx );
1108 } else if (( op->o_sync_slog_size != -1 )) {
1109 sl_mem_detach( ctx, memctx );
1110 LDAP_STAILQ_REMOVE( &conn->c_ops, op, slap_op, o_next);
1111 LDAP_STAILQ_NEXT(op, o_next) = NULL;
1112 conn->c_n_ops_executing--;
1113 conn->c_n_ops_completed++;
1115 LDAP_STAILQ_REMOVE( &conn->c_ops, op, slap_op, o_next);
1116 LDAP_STAILQ_NEXT(op, o_next) = NULL;
1118 conn->c_n_ops_executing--;
1119 conn->c_n_ops_completed++;
1126 case LDAP_REQ_UNBIND:
1127 /* c_mutex is locked */
1128 connection_closing( conn );
1132 conn->c_sasl_bind_in_progress =
1133 rc == LDAP_SASL_BIND_IN_PROGRESS ? 1 : 0;
1135 if( conn->c_conn_state == SLAP_C_BINDING) {
1136 conn->c_conn_state = SLAP_C_ACTIVE;
1140 connection_resched( conn );
1142 ldap_pvt_thread_mutex_unlock( &conn->c_mutex );
1147 int connection_client_setup(
1150 ldap_pvt_thread_start_t *func,
1155 if ( connection_init( s, l, "", "", CONN_IS_CLIENT, 0, "" ) < 0 ) {
1159 c = connection_get( s );
1160 c->c_clientfunc = func;
1161 c->c_clientarg = arg;
1162 connection_return( c );
1163 slapd_add_internal( s, 0 );
1164 slapd_set_read( s, 1 );
1168 void connection_client_enable(
1172 slapd_set_read( s, 1 );
1175 void connection_client_stop(
1181 /* get (locked) connection */
1182 c = connection_get( s );
1184 assert( c->c_conn_state == SLAP_C_CLIENT );
1186 c->c_listener = NULL;
1187 c->c_conn_state = SLAP_C_INVALID;
1188 c->c_struct_state = SLAP_C_UNUSED;
1189 connection_return( c );
1190 slapd_remove( s, 0, 1 );
1193 int connection_read(ber_socket_t s)
1198 assert( connections != NULL );
1200 ldap_pvt_thread_mutex_lock( &connections_mutex );
1202 /* get (locked) connection */
1203 c = connection_get( s );
1207 LDAP_LOG( CONNECTION, INFO,
1208 "connection_read: sock %ld no connection\n", (long)s, 0, 0 );
1210 Debug( LDAP_DEBUG_ANY,
1211 "connection_read(%ld): no connection!\n",
1214 slapd_remove(s, 1, 0);
1216 ldap_pvt_thread_mutex_unlock( &connections_mutex );
1222 if( c->c_conn_state == SLAP_C_CLOSING ) {
1224 LDAP_LOG( CONNECTION, INFO,
1225 "connection_read: conn %lu connection closing, ignoring input\n",
1226 c->c_connid, 0, 0 );
1228 Debug( LDAP_DEBUG_TRACE,
1229 "connection_read(%d): closing, ignoring input for id=%lu\n",
1230 s, c->c_connid, 0 );
1232 connection_return( c );
1233 ldap_pvt_thread_mutex_unlock( &connections_mutex );
1237 if ( c->c_conn_state == SLAP_C_CLIENT ) {
1238 slapd_clr_read( s, 0 );
1239 ldap_pvt_thread_pool_submit( &connection_pool,
1240 c->c_clientfunc, c->c_clientarg );
1241 connection_return( c );
1242 ldap_pvt_thread_mutex_unlock( &connections_mutex );
1247 LDAP_LOG( CONNECTION, DETAIL1,
1248 "connection_read: conn %lu checking for input.\n",
1249 c->c_connid, 0, 0 );
1251 Debug( LDAP_DEBUG_TRACE,
1252 "connection_read(%d): checking for input on id=%lu\n",
1253 s, c->c_connid, 0 );
1257 if ( c->c_is_tls && c->c_needs_tls_accept ) {
1258 rc = ldap_pvt_tls_accept( c->c_sb, NULL );
1260 #if 0 /* required by next #if 0 */
1266 LDAP_LOG( CONNECTION, ERR,
1267 "connection_read: conn %lu TLS accept error, error %d\n",
1268 c->c_connid, rc, 0 );
1270 Debug( LDAP_DEBUG_TRACE,
1271 "connection_read(%d): TLS accept error "
1272 "error=%d id=%lu, closing\n",
1273 s, rc, c->c_connid );
1275 c->c_needs_tls_accept = 0;
1276 /* connections_mutex and c_mutex are locked */
1277 connection_closing( c );
1280 /* Drain input before close, to allow SSL error codes
1281 * to propagate to client. */
1287 rc = select(s+1, &rfd, NULL, NULL, &tv);
1289 ber_sockbuf_ctrl( c->c_sb, LBER_SB_OPT_DRAIN, NULL);
1293 connection_close( c );
1295 } else if ( rc == 0 ) {
1297 struct berval authid = { 0, NULL };
1299 c->c_needs_tls_accept = 0;
1301 /* we need to let SASL know */
1302 ssl = ldap_pvt_tls_sb_ctx( c->c_sb );
1304 c->c_tls_ssf = (slap_ssf_t) ldap_pvt_tls_get_strength( ssl );
1305 if( c->c_tls_ssf > c->c_ssf ) {
1306 c->c_ssf = c->c_tls_ssf;
1309 rc = dnX509peerNormalize( ssl, &authid );
1310 if ( rc != LDAP_SUCCESS ) {
1312 LDAP_LOG( CONNECTION, INFO,
1313 "connection_read: conn %lu unable to get TLS client DN, "
1314 "error %d\n", c->c_connid, rc, 0 );
1316 Debug( LDAP_DEBUG_TRACE,
1317 "connection_read(%d): unable to get TLS client DN "
1318 "error=%d id=%lu\n",
1319 s, rc, c->c_connid );
1322 slap_sasl_external( c, c->c_tls_ssf, authid.bv_val );
1323 if ( authid.bv_val ) free( authid.bv_val );
1326 /* if success and data is ready, fall thru to data input loop */
1328 !ber_sockbuf_ctrl( c->c_sb, LBER_SB_OPT_DATA_READY, NULL ) )
1330 connection_return( c );
1331 ldap_pvt_thread_mutex_unlock( &connections_mutex );
1337 #ifdef HAVE_CYRUS_SASL
1338 if ( c->c_sasl_layers ) {
1339 /* If previous layer is not removed yet, give up for now */
1340 if ( !c->c_sasl_sockctx ) {
1341 connection_return( c );
1342 ldap_pvt_thread_mutex_unlock( &connections_mutex );
1346 c->c_sasl_layers = 0;
1348 rc = ldap_pvt_sasl_install( c->c_sb, c->c_sasl_sockctx );
1350 if( rc != LDAP_SUCCESS ) {
1352 LDAP_LOG( CONNECTION, ERR,
1353 "connection_read: conn %lu SASL install error %d, closing\n",
1354 c->c_connid, rc, 0 );
1356 Debug( LDAP_DEBUG_TRACE,
1357 "connection_read(%d): SASL install error "
1358 "error=%d id=%lu, closing\n",
1359 s, rc, c->c_connid );
1361 /* connections_mutex and c_mutex are locked */
1362 connection_closing( c );
1363 connection_close( c );
1364 connection_return( c );
1365 ldap_pvt_thread_mutex_unlock( &connections_mutex );
1371 #define CONNECTION_INPUT_LOOP 1
1372 /* #define DATA_READY_LOOP 1 */
1376 /* How do we do this without getting into a busy loop ? */
1377 rc = connection_input( c );
1379 #ifdef DATA_READY_LOOP
1380 while( !rc && ber_sockbuf_ctrl( c->c_sb, LBER_SB_OPT_DATA_READY, NULL ) );
1381 #elif CONNECTION_INPUT_LOOP
1389 LDAP_LOG( CONNECTION, ERR,
1390 "connection_read: conn %lu input error %d, closing.\n",
1391 c->c_connid, rc, 0 );
1393 Debug( LDAP_DEBUG_TRACE,
1394 "connection_read(%d): input error=%d id=%lu, closing.\n",
1395 s, rc, c->c_connid );
1397 /* connections_mutex and c_mutex are locked */
1398 connection_closing( c );
1399 connection_close( c );
1400 connection_return( c );
1401 ldap_pvt_thread_mutex_unlock( &connections_mutex );
1405 if ( ber_sockbuf_ctrl( c->c_sb, LBER_SB_OPT_NEEDS_READ, NULL ) ) {
1406 slapd_set_read( s, 1 );
1409 if ( ber_sockbuf_ctrl( c->c_sb, LBER_SB_OPT_NEEDS_WRITE, NULL ) ) {
1410 slapd_set_write( s, 1 );
1413 connection_return( c );
1414 ldap_pvt_thread_mutex_unlock( &connections_mutex );
1429 #ifdef LDAP_CONNECTIONLESS
1434 if ( conn->c_currentber == NULL &&
1435 ( conn->c_currentber = ber_alloc()) == NULL )
1438 LDAP_LOG( CONNECTION, ERR,
1439 "connection_input: conn %lu ber_alloc failed.\n",
1440 conn->c_connid, 0, 0 );
1442 Debug( LDAP_DEBUG_ANY, "ber_alloc failed\n", 0, 0, 0 );
1449 #ifdef LDAP_CONNECTIONLESS
1450 if ( conn->c_is_udp ) {
1451 char peername[sizeof("IP=255.255.255.255:65336")];
1452 len = ber_int_sb_read(conn->c_sb, &peeraddr,
1453 sizeof(struct sockaddr));
1454 if (len != sizeof(struct sockaddr))
1456 sprintf( peername, "IP=%s:%d",
1457 inet_ntoa( peeraddr.sa_in_addr.sin_addr ),
1458 (unsigned) ntohs( peeraddr.sa_in_addr.sin_port ) );
1459 Statslog( LDAP_DEBUG_STATS,
1460 "conn=%lu UDP request from %s (%s) accepted.\n",
1461 conn->c_connid, peername, conn->c_sock_name.bv_val, 0, 0 );
1464 tag = ber_get_next( conn->c_sb, &len, conn->c_currentber );
1465 if ( tag != LDAP_TAG_MESSAGE ) {
1469 ber_sockbuf_ctrl( conn->c_sb, LBER_SB_OPT_GET_FD, &sd );
1472 LDAP_LOG( CONNECTION, ERR,
1473 "connection_input: conn %lu ber_get_next failed, errno %d (%s).\n",
1474 conn->c_connid, err, sock_errstr(err) );
1476 Debug( LDAP_DEBUG_TRACE,
1477 "ber_get_next on fd %d failed errno=%d (%s)\n",
1478 sd, err, sock_errstr(err) );
1480 if ( err != EWOULDBLOCK && err != EAGAIN ) {
1481 /* log, close and send error */
1482 ber_free( conn->c_currentber, 1 );
1483 conn->c_currentber = NULL;
1490 ber = conn->c_currentber;
1491 conn->c_currentber = NULL;
1493 if ( (tag = ber_get_int( ber, &msgid )) != LDAP_TAG_MSGID ) {
1494 /* log, close and send error */
1496 LDAP_LOG( CONNECTION, ERR,
1497 "connection_input: conn %lu ber_get_int returns 0x%lx.\n",
1498 conn->c_connid, tag, 0 );
1500 Debug( LDAP_DEBUG_ANY, "ber_get_int returns 0x%lx\n",
1507 if ( (tag = ber_peek_tag( ber, &len )) == LBER_ERROR ) {
1508 /* log, close and send error */
1510 LDAP_LOG( CONNECTION, ERR,
1511 "connection_input: conn %lu ber_peek_tag returns 0x%lx.\n",
1512 conn->c_connid, tag, 0 );
1514 Debug( LDAP_DEBUG_ANY, "ber_peek_tag returns 0x%lx\n",
1522 #ifdef LDAP_CONNECTIONLESS
1523 if( conn->c_is_udp ) {
1524 if( tag == LBER_OCTETSTRING ) {
1525 ber_get_stringa( ber, &cdn );
1526 tag = ber_peek_tag(ber, &len);
1528 if( tag != LDAP_REQ_ABANDON && tag != LDAP_REQ_SEARCH ) {
1530 LDAP_LOG( CONNECTION, ERR,
1531 "connection_input: conn %lu invalid req for UDP 0x%lx.\n",
1532 conn->c_connid, tag, 0 );
1534 Debug( LDAP_DEBUG_ANY, "invalid req for UDP 0x%lx\n", tag, 0, 0 );
1541 if(tag == LDAP_REQ_BIND) {
1542 /* immediately abandon all exiting operations upon BIND */
1543 connection_abandon( conn );
1546 op = slap_op_alloc( ber, msgid, tag, conn->c_n_ops_received++ );
1549 op->o_assertion = NULL;
1550 op->o_preread_attrs = NULL;
1551 op->o_postread_attrs = NULL;
1552 op->o_vrFilter = NULL;
1554 #ifdef LDAP_CONTROL_PAGEDRESULTS
1555 op->o_pagedresults_state = conn->c_pagedresults_state;
1558 op->o_res_ber = NULL;
1560 #ifdef LDAP_CONNECTIONLESS
1561 if (conn->c_is_udp) {
1563 ber_str2bv( cdn, 0, 1, &op->o_dn );
1564 op->o_protocol = LDAP_VERSION2;
1566 op->o_res_ber = ber_alloc_t( LBER_USE_DER );
1567 if (op->o_res_ber == NULL) return 1;
1569 rc = ber_write( op->o_res_ber, (char *)&peeraddr,
1570 sizeof(struct sockaddr), 0 );
1572 if (rc != sizeof(struct sockaddr)) {
1574 LDAP_LOG( CONNECTION, INFO,
1575 "connection_input: conn %lu ber_write failed\n",
1576 conn->c_connid, 0, 0 );
1578 Debug( LDAP_DEBUG_ANY, "ber_write failed\n", 0, 0, 0 );
1583 if (op->o_protocol == LDAP_VERSION2) {
1584 rc = ber_printf(op->o_res_ber, "{is{" /*}}*/, op->o_msgid, "");
1587 LDAP_LOG( CONNECTION, INFO,
1588 "connection_input: conn %lu put outer sequence failed\n",
1589 conn->c_connid, 0, 0 );
1591 Debug( LDAP_DEBUG_ANY, "ber_write failed\n", 0, 0, 0 );
1597 #endif /* LDAP_CONNECTIONLESS */
1601 /* Don't process requests when the conn is in the middle of a
1602 * Bind, or if it's closing. Also, don't let any single conn
1603 * use up all the available threads, and don't execute if we're
1604 * currently blocked on output. And don't execute if there are
1605 * already pending ops, let them go first.
1607 * But always allow Abandon through; it won't cost much.
1609 if ( tag != LDAP_REQ_ABANDON && (conn->c_conn_state == SLAP_C_BINDING
1610 || conn->c_conn_state == SLAP_C_CLOSING
1611 || conn->c_n_ops_executing >= connection_pool_max/2
1612 || conn->c_n_ops_pending
1613 || conn->c_writewaiter))
1615 int max = conn->c_dn.bv_len
1616 ? slap_conn_max_pending_auth
1617 : slap_conn_max_pending;
1620 LDAP_LOG( CONNECTION, INFO,
1621 "connection_input: conn %lu deferring operation\n",
1622 conn->c_connid, 0, 0 );
1624 Debug( LDAP_DEBUG_ANY,
1625 "connection_input: conn=%lu deferring operation\n",
1626 conn->c_connid, 0, 0 );
1628 conn->c_n_ops_pending++;
1629 LDAP_STAILQ_INSERT_TAIL( &conn->c_pending_ops, op, o_next );
1630 if ( conn->c_n_ops_pending > max ) {
1636 conn->c_n_ops_executing++;
1637 connection_op_activate( op );
1641 if ( conn->c_struct_state != SLAP_C_USED ) {
1642 /* connection must have got closed underneath us */
1646 assert( conn->c_struct_state == SLAP_C_USED );
1652 connection_resched( Connection *conn )
1656 if( conn->c_conn_state == SLAP_C_CLOSING ) {
1659 ber_sockbuf_ctrl( conn->c_sb, LBER_SB_OPT_GET_FD, &sd );
1661 /* us trylock to avoid possible deadlock */
1662 rc = ldap_pvt_thread_mutex_trylock( &connections_mutex );
1666 LDAP_LOG( CONNECTION, DETAIL1,
1667 "connection_resched: conn %lu reaquiring locks.\n",
1668 conn->c_connid, 0, 0 );
1670 Debug( LDAP_DEBUG_TRACE,
1671 "connection_resched: reaquiring locks conn=%lu sd=%d\n",
1672 conn->c_connid, sd, 0 );
1675 * reaquire locks in the right order...
1676 * this may allow another thread to close this connection,
1677 * so recheck state below.
1679 ldap_pvt_thread_mutex_unlock( &conn->c_mutex );
1680 ldap_pvt_thread_mutex_lock( &connections_mutex );
1681 ldap_pvt_thread_mutex_lock( &conn->c_mutex );
1684 if( conn->c_conn_state != SLAP_C_CLOSING ) {
1686 LDAP_LOG( CONNECTION, INFO,
1687 "connection_resched: conn %lu closed by other thread.\n",
1688 conn->c_connid, 0, 0 );
1690 Debug( LDAP_DEBUG_TRACE, "connection_resched: "
1691 "closed by other thread conn=%lu sd=%d\n",
1692 conn->c_connid, sd, 0 );
1696 LDAP_LOG( CONNECTION, DETAIL1,
1697 "connection_resched: conn %lu attempting closing.\n",
1698 conn->c_connid, 0, 0 );
1700 Debug( LDAP_DEBUG_TRACE, "connection_resched: "
1701 "attempting closing conn=%lu sd=%d\n",
1702 conn->c_connid, sd, 0 );
1704 connection_close( conn );
1707 ldap_pvt_thread_mutex_unlock( &connections_mutex );
1711 if( conn->c_conn_state != SLAP_C_ACTIVE || conn->c_writewaiter ) {
1712 /* other states need different handling */
1716 while ((op = LDAP_STAILQ_FIRST( &conn->c_pending_ops )) != NULL) {
1717 if ( conn->c_n_ops_executing > connection_pool_max/2 ) {
1720 LDAP_STAILQ_REMOVE_HEAD( &conn->c_pending_ops, o_next );
1721 LDAP_STAILQ_NEXT(op, o_next) = NULL;
1722 /* pending operations should not be marked for abandonment */
1723 assert(!op->o_abandon);
1725 conn->c_n_ops_pending--;
1726 conn->c_n_ops_executing++;
1728 connection_op_activate( op );
1730 if ( conn->c_conn_state == SLAP_C_BINDING ) {
1737 static int connection_op_activate( Operation *op )
1740 ber_tag_t tag = op->o_tag;
1742 if(tag == LDAP_REQ_BIND) {
1743 op->o_conn->c_conn_state = SLAP_C_BINDING;
1746 if (!op->o_dn.bv_len) {
1747 op->o_authz = op->o_conn->c_authz;
1748 ber_dupbv( &op->o_dn, &op->o_conn->c_dn );
1749 ber_dupbv( &op->o_ndn, &op->o_conn->c_ndn );
1751 op->o_authtype = op->o_conn->c_authtype;
1752 ber_dupbv( &op->o_authmech, &op->o_conn->c_authmech );
1754 if (!op->o_protocol) {
1755 op->o_protocol = op->o_conn->c_protocol
1756 ? op->o_conn->c_protocol : LDAP_VERSION3;
1758 if (op->o_conn->c_conn_state == SLAP_C_INACTIVE
1759 && op->o_protocol > LDAP_VERSION2)
1761 op->o_conn->c_conn_state = SLAP_C_ACTIVE;
1764 op->o_connid = op->o_conn->c_connid;
1766 LDAP_STAILQ_INSERT_TAIL( &op->o_conn->c_ops, op, o_next );
1768 status = ldap_pvt_thread_pool_submit( &connection_pool,
1769 connection_operation, (void *) op );
1771 if ( status != 0 ) {
1773 LDAP_LOG( CONNECTION, ERR,
1774 "connection_op_activate: conn %lu thread pool submit failed.\n",
1775 op->o_connid, 0, 0 );
1777 Debug( LDAP_DEBUG_ANY,
1778 "ldap_pvt_thread_pool_submit: failed (%d) for conn=%lu\n",
1779 status, op->o_connid, 0 );
1781 /* should move op to pending list */
1787 int connection_write(ber_socket_t s)
1791 assert( connections != NULL );
1793 ldap_pvt_thread_mutex_lock( &connections_mutex );
1795 c = connection_get( s );
1797 slapd_clr_write( s, 0);
1801 LDAP_LOG( CONNECTION, ERR,
1802 "connection_write: sock %ld no connection!\n", (long)s, 0, 0);
1804 Debug( LDAP_DEBUG_ANY,
1805 "connection_write(%ld): no connection!\n",
1808 slapd_remove(s, 1, 0);
1809 ldap_pvt_thread_mutex_unlock( &connections_mutex );
1816 LDAP_LOG( CONNECTION, DETAIL1,
1817 "connection_write conn %lu waking output.\n", c->c_connid, 0, 0 );
1819 Debug( LDAP_DEBUG_TRACE,
1820 "connection_write(%d): waking output for id=%lu\n",
1821 s, c->c_connid, 0 );
1823 ldap_pvt_thread_cond_signal( &c->c_write_cv );
1825 if ( ber_sockbuf_ctrl( c->c_sb, LBER_SB_OPT_NEEDS_READ, NULL ) ) {
1826 slapd_set_read( s, 1 );
1828 if ( ber_sockbuf_ctrl( c->c_sb, LBER_SB_OPT_NEEDS_WRITE, NULL ) ) {
1829 slapd_set_write( s, 1 );
1831 connection_return( c );
1832 ldap_pvt_thread_mutex_unlock( &connections_mutex );