3 * Copyright 1998-2000 The OpenLDAP Foundation, All Rights Reserved.
4 * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
13 #include <ac/signal.h>
14 #include <ac/socket.h>
15 #include <ac/string.h>
17 #include <ac/unistd.h>
26 int allow_severity = LOG_INFO;
27 int deny_severity = LOG_NOTICE;
28 #endif /* TCP Wrappers */
32 #endif /* LDAP_PF_LOCAL */
36 ber_socket_t dtblsize;
38 typedef struct slap_listener {
44 #ifdef LDAP_CONNECTIONLESS
45 int sl_is_udp; /* UDP listener is also data port */
49 #define sl_addr sl_sa.sa_in_addr
52 Listener **slap_listeners = NULL;
54 #define SLAPD_LISTEN 10
56 static ber_socket_t wake_sds[2];
60 #define WAKE_LISTENER(w) \
61 ((w && !waking) ? tcp_write( wake_sds[1], "0", 1 ), waking=1 : 0)
63 #define WAKE_LISTENER(w) \
64 do { if (w) tcp_write( wake_sds[1], "0", 1 ); } while(0)
67 #ifdef HAVE_NT_SERVICE_MANAGER
69 extern ldap_pvt_thread_cond_t started_event;
70 extern int is_NT_Service;
76 volatile sig_atomic_t slapd_shutdown = 0;
78 static struct slap_daemon {
79 ldap_pvt_thread_mutex_t sd_mutex;
84 /* In winsock, accept() returns values higher than dtblsize
85 so don't bother with this optimization */
98 * SLP related functions
102 #define LDAP_SRVTYPE_PREFIX "service:ldap://"
103 #define LDAPS_SRVTYPE_PREFIX "service:ldaps://"
104 static char** slapd_srvurls = NULL;
105 static SLPHandle slapd_hslp = 0;
107 void slapd_slp_init( const char* urls ) {
110 slapd_srvurls = str2charray( urls, " " );
112 if( slapd_srvurls == NULL ) return;
114 /* find and expand INADDR_ANY URLs */
115 for( i=0; slapd_srvurls[i] != NULL; i++ ) {
116 if( strcmp( slapd_srvurls[i], "ldap:///" ) == 0) {
117 char *host = ldap_pvt_get_fqdn( NULL );
118 if ( host != NULL ) {
119 slapd_srvurls[i] = (char *) realloc( slapd_srvurls[i],
121 sizeof( LDAP_SRVTYPE_PREFIX ) );
122 strcpy( slapd_srvurls[i], LDAP_SRVTYPE_PREFIX );
123 strcat( slapd_srvurls[i], host );
128 } else if ( strcmp( slapd_srvurls[i], "ldaps:///" ) == 0) {
129 char *host = ldap_pvt_get_fqdn( NULL );
130 if ( host != NULL ) {
131 slapd_srvurls[i] = (char *) realloc( slapd_srvurls[i],
133 sizeof( LDAPS_SRVTYPE_PREFIX ) );
134 strcpy( slapd_srvurls[i], LDAPS_SRVTYPE_PREFIX );
135 strcat( slapd_srvurls[i], host );
142 /* open the SLP handle */
143 SLPOpen( "en", 0, &slapd_hslp );
146 void slapd_slp_deinit() {
147 if( slapd_srvurls == NULL ) return;
149 charray_free( slapd_srvurls );
150 slapd_srvurls = NULL;
152 /* close the SLP handle */
153 SLPClose( slapd_hslp );
156 void slapd_slp_regreport(
164 void slapd_slp_reg() {
167 for( i=0; slapd_srvurls[i] != NULL; i++ ) {
168 if( strncmp( slapd_srvurls[i], LDAP_SRVTYPE_PREFIX,
169 sizeof( LDAP_SRVTYPE_PREFIX ) - 1 ) == 0 ||
170 strncmp( slapd_srvurls[i], LDAPS_SRVTYPE_PREFIX,
171 sizeof( LDAPS_SRVTYPE_PREFIX ) - 1 ) == 0 )
175 SLP_LIFETIME_MAXIMUM,
185 void slapd_slp_dereg() {
188 for( i=0; slapd_srvurls[i] != NULL; i++ ) {
189 SLPDereg( slapd_hslp,
195 #endif /* HAVE_SLP */
198 * Add a descriptor to daemon control
200 static void slapd_add(ber_socket_t s) {
201 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
203 assert( !FD_ISSET( s, &slap_daemon.sd_actives ));
204 assert( !FD_ISSET( s, &slap_daemon.sd_readers ));
205 assert( !FD_ISSET( s, &slap_daemon.sd_writers ));
208 if (s >= slap_daemon.sd_nfds) {
209 slap_daemon.sd_nfds = s + 1;
213 FD_SET( s, &slap_daemon.sd_actives );
214 FD_SET( s, &slap_daemon.sd_readers );
217 LDAP_LOG(( "connection", LDAP_LEVEL_DETAIL1,
218 "slapd_add: added %ld%s%s\n",
220 FD_ISSET(s, &slap_daemon.sd_readers) ? "r" : "",
221 FD_ISSET(s, &slap_daemon.sd_writers) ? "w" : "" ));
223 Debug( LDAP_DEBUG_CONNS, "daemon: added %ld%s%s\n",
225 FD_ISSET(s, &slap_daemon.sd_readers) ? "r" : "",
226 FD_ISSET(s, &slap_daemon.sd_writers) ? "w" : "" );
228 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
232 * Remove the descriptor from daemon control
234 void slapd_remove(ber_socket_t s, int wake) {
235 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
238 LDAP_LOG(( "connection", LDAP_LEVEL_DETAIL1,
239 "slapd_remove: removing %ld%s%s\n",
241 FD_ISSET(s, &slap_daemon.sd_readers) ? "r" : "",
242 FD_ISSET(s, &slap_daemon.sd_writers) ? "w" : "" ));
244 Debug( LDAP_DEBUG_CONNS, "daemon: removing %ld%s%s\n",
246 FD_ISSET(s, &slap_daemon.sd_readers) ? "r" : "",
247 FD_ISSET(s, &slap_daemon.sd_writers) ? "w" : "" );
249 FD_CLR( s, &slap_daemon.sd_actives );
250 FD_CLR( s, &slap_daemon.sd_readers );
251 FD_CLR( s, &slap_daemon.sd_writers );
253 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
257 void slapd_clr_write(ber_socket_t s, int wake) {
258 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
260 assert( FD_ISSET( s, &slap_daemon.sd_actives) );
261 FD_CLR( s, &slap_daemon.sd_writers );
263 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
267 void slapd_set_write(ber_socket_t s, int wake) {
268 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
270 assert( FD_ISSET( s, &slap_daemon.sd_actives) );
271 if (!FD_ISSET(s, &slap_daemon.sd_writers))
272 FD_SET( (unsigned) s, &slap_daemon.sd_writers );
274 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
278 void slapd_clr_read(ber_socket_t s, int wake) {
279 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
281 assert( FD_ISSET( s, &slap_daemon.sd_actives) );
282 FD_CLR( s, &slap_daemon.sd_readers );
284 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
288 void slapd_set_read(ber_socket_t s, int wake) {
289 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
291 assert( FD_ISSET( s, &slap_daemon.sd_actives) );
292 if (!FD_ISSET(s, &slap_daemon.sd_readers))
293 FD_SET( s, &slap_daemon.sd_readers );
295 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
299 static void slapd_close(ber_socket_t s) {
301 LDAP_LOG(( "connection", LDAP_LEVEL_DETAIL1,
302 "slapd_close: closing %ld\n", (long)s ));
304 Debug( LDAP_DEBUG_CONNS, "daemon: closing %ld\n",
310 static void slap_free_listener_addresses(struct sockaddr **sal)
312 struct sockaddr **sap;
318 for (sap = sal; *sap != NULL; sap++) {
325 /* port = 0 indicates AF_LOCAL */
326 static int slap_get_listener_addresses(
329 struct sockaddr ***sal)
331 struct sockaddr **sap;
335 *sal = ch_malloc(2 * sizeof(void *));
341 *sap = ch_malloc(sizeof(struct sockaddr_un));
347 (sizeof(((struct sockaddr_un *)*sap)->sun_path) - 1) ) {
349 LDAP_LOG(( "connection", LDAP_LEVEL_INFO,
350 "slap_get_listener_addresses: domain socket path (%s) too long in URL\n",
353 Debug( LDAP_DEBUG_ANY,
354 "daemon: domain socket path (%s) too long in URL",
360 (void)memset( (void *)*sap, '\0', sizeof(struct sockaddr_un) );
361 (*sap)->sa_family = AF_LOCAL;
362 strcpy( ((struct sockaddr_un *)*sap)->sun_path, host );
366 #ifdef HAVE_GETADDRINFO
367 struct addrinfo hints, *res, *sai;
371 memset( &hints, '\0', sizeof(hints) );
372 hints.ai_flags = AI_PASSIVE;
373 hints.ai_socktype = SOCK_STREAM;
374 hints.ai_family = AF_UNSPEC;
375 snprintf(serv, sizeof serv, "%d", port);
377 if (err = getaddrinfo(host, serv, &hints, &res)) {
379 LDAP_LOG(( "connection", LDAP_LEVEL_INFO,
380 "slap_get_listener_addresses: getaddrinfo failed: %s\n",
381 AC_GAI_STRERROR(err) ));
383 Debug( LDAP_DEBUG_ANY, "daemon: getaddrinfo failed: %s\n",
384 AC_GAI_STRERROR(err), 0, 0);
390 for (n=2; (sai = sai->ai_next) != NULL; n++) {
393 *sal = ch_malloc(n * sizeof(void *));
400 for ( sai=res; sai; sai=sai->ai_next ) {
401 if( sai->ai_addr == NULL ) {
403 LDAP_LOG(( "connection", LDAP_LEVEL_INFO,
404 "slap_get_listener_addresses: "
405 "getaddrinfo ai_addr is NULL?\n" ));
407 Debug( LDAP_DEBUG_ANY, "slap_get_listener_addresses: "
408 "getaddrinfo ai_addr is NULL?\n", 0, 0, 0 );
414 switch (sai->ai_family) {
415 # ifdef LDAP_PF_INET6
417 *sap = ch_malloc(sizeof(struct sockaddr_in6));
422 *(struct sockaddr_in6 *)*sap =
423 *((struct sockaddr_in6 *)sai->ai_addr);
427 *sap = ch_malloc(sizeof(struct sockaddr_in));
432 *(struct sockaddr_in *)*sap =
433 *((struct sockaddr_in *)sai->ai_addr);
440 (*sap)->sa_family = sai->ai_family;
450 if ( host == NULL ) {
451 in.s_addr = htonl(INADDR_ANY);
453 } else if ( !inet_aton( host, &in ) ) {
454 struct hostent *he = gethostbyname( host );
457 LDAP_LOG(( "connection", LDAP_LEVEL_INFO,
458 "slap_get_listener_addresses: invalid host %s\n",
461 Debug( LDAP_DEBUG_ANY,
462 "daemon: invalid host %s", host, 0, 0);
466 AC_MEMCPY( &in, he->h_addr, sizeof( in ) );
469 *sal = ch_malloc(2 * sizeof(void *));
475 *sap = ch_malloc(sizeof(struct sockaddr_in));
481 (void)memset( (void *)*sap, '\0', sizeof(struct sockaddr_in) );
482 (*sap)->sa_family = AF_INET;
483 ((struct sockaddr_in *)*sap)->sin_port = htons(port);
484 ((struct sockaddr_in *)*sap)->sin_addr = in;
491 slap_free_listener_addresses(*sal);
495 static Listener * slap_open_listener(
504 struct sockaddr **sal, **psal;
505 int socktype = SOCK_STREAM; /* default to COTS */
507 rc = ldap_url_parse( url, &lud );
509 if( rc != LDAP_URL_SUCCESS ) {
511 LDAP_LOG(( "connection", LDAP_LEVEL_ERR,
512 "slap_open_listener: listen URL \"%s\" parse error %d\n",
515 Debug( LDAP_DEBUG_ANY,
516 "daemon: listen URL \"%s\" parse error=%d\n",
523 if( ldap_pvt_url_scheme2tls( lud->lud_scheme ) ) {
525 LDAP_LOG(( "connection", LDAP_LEVEL_INFO,
526 "slap_open_listener: TLS is not supported (%s)\n",
529 Debug( LDAP_DEBUG_ANY,
530 "daemon: TLS not supported (%s)\n",
533 ldap_free_urldesc( lud );
537 if(! lud->lud_port ) {
538 lud->lud_port = LDAP_PORT;
542 l.sl_is_tls = ldap_pvt_url_scheme2tls( lud->lud_scheme );
544 if(! lud->lud_port ) {
545 lud->lud_port = l.sl_is_tls ? LDAPS_PORT : LDAP_PORT;
549 port = (unsigned short) lud->lud_port;
551 tmp = ldap_pvt_url_scheme2proto(lud->lud_scheme);
552 if ( tmp == LDAP_PROTO_IPC ) {
554 if ( lud->lud_host == NULL || lud->lud_host[0] == '\0' ) {
555 err = slap_get_listener_addresses(LDAPI_SOCK, 0, &sal);
557 err = slap_get_listener_addresses(lud->lud_host, 0, &sal);
562 LDAP_LOG(( "connection", LDAP_LEVEL_INFO,
563 "slap_open_listener: URL scheme is not supported: %s\n",
566 Debug( LDAP_DEBUG_ANY, "daemon: URL scheme not supported: %s",
569 ldap_free_urldesc( lud );
573 #ifdef LDAP_CONNECTIONLESS
574 l.sl_is_udp = ( tmp == LDAP_PROTO_UDP );
576 if( lud->lud_host == NULL || lud->lud_host[0] == '\0'
577 || strcmp(lud->lud_host, "*") == 0 )
579 err = slap_get_listener_addresses(NULL, port, &sal);
581 err = slap_get_listener_addresses(lud->lud_host, port, &sal);
585 ldap_free_urldesc( lud );
591 while ( *sal != NULL ) {
592 switch( (*sal)->sa_family ) {
605 #ifdef LDAP_CONNECTIONLESS
607 socktype = SOCK_DGRAM;
609 l.sl_sd = socket( (*sal)->sa_family, socktype, 0);
610 if ( l.sl_sd == AC_SOCKET_INVALID ) {
611 int err = sock_errno();
613 LDAP_LOG(( "connection", LDAP_LEVEL_ERR,
614 "slap_open_listener: socket() failed errno=%d (%s)\n",
615 err, sock_errstr(err) ));
617 Debug( LDAP_DEBUG_ANY,
618 "daemon: socket() failed errno=%d (%s)\n", err,
619 sock_errstr(err), 0 );
625 if ( l.sl_sd >= dtblsize ) {
627 LDAP_LOG(( "connection", LDAP_LEVEL_ERR,
628 "slap_open_listener: listener descriptor %ld is too great %ld\n",
629 (long)l.sl_sd, (long)dtblsize ));
631 Debug( LDAP_DEBUG_ANY,
632 "daemon: listener descriptor %ld is too great %ld\n",
633 (long) l.sl_sd, (long) dtblsize, 0 );
635 tcp_close( l.sl_sd );
641 if ( (*sal)->sa_family == AF_LOCAL ) {
642 unlink ( ((struct sockaddr_un *)*sal)->sun_path );
647 /* enable address reuse */
649 rc = setsockopt( l.sl_sd, SOL_SOCKET, SO_REUSEADDR,
650 (char *) &tmp, sizeof(tmp) );
651 if ( rc == AC_SOCKET_ERROR ) {
652 int err = sock_errno();
654 LDAP_LOG(( "connection", LDAP_LEVEL_INFO,
655 "slap_open_listener: setsockopt( %ld, SO_REUSEADDR ) failed errno %d (%s)\n",
656 (long)l.sl_sd, err, sock_errstr(err) ));
658 Debug( LDAP_DEBUG_ANY,
659 "slapd(%ld): setsockopt(SO_REUSEADDR) failed errno=%d (%s)\n",
660 (long) l.sl_sd, err, sock_errstr(err) );
666 switch( (*sal)->sa_family ) {
668 addrlen = sizeof(struct sockaddr_in);
672 addrlen = sizeof(struct sockaddr_in6);
677 addrlen = sizeof(struct sockaddr_un);
682 if (!bind(l.sl_sd, *sal, addrlen))
686 LDAP_LOG(( "connection", LDAP_LEVEL_INFO,
687 "slap_open_listener: bind(%ld) failed errno=%d (%s)\n",
688 (long)l.sl_sd, err, sock_errstr(err) ));
690 Debug( LDAP_DEBUG_ANY, "daemon: bind(%ld) failed errno=%d (%s)\n",
691 (long) l.sl_sd, err, sock_errstr(err) );
693 tcp_close( l.sl_sd );
695 } /* while ( *sal != NULL ) */
697 if ( *sal == NULL ) {
699 LDAP_LOG(( "connection", LDAP_LEVEL_INFO,
700 "slap_open_listener: bind(%ld) failed.\n", (long)l.sl_sd ));
702 Debug( LDAP_DEBUG_ANY, "daemon: bind(%ld) failed\n",
703 (long) l.sl_sd, 0, 0 );
705 slap_free_listener_addresses(psal);
709 switch ( (*sal)->sa_family ) {
712 char *addr = ((struct sockaddr_un *)*sal)->sun_path;
713 if ( chmod( addr, S_IRWXU ) < 0 ) {
714 int err = sock_errno();
716 LDAP_LOG(( "connection", LDAP_LEVEL_INFO,
717 "slap_open_listener: fchmod(%ld) failed errno=%d (%s)\n",
718 (long)l.sl_sd, err, sock_errstr(err) ));
720 Debug( LDAP_DEBUG_ANY, "daemon: fchmod(%ld) failed errno=%d (%s)",
721 (long) l.sl_sd, err, sock_errstr(err) );
723 tcp_close( l.sl_sd );
724 slap_free_listener_addresses(psal);
727 l.sl_name = ch_malloc( strlen(addr) + sizeof("PATH=") );
728 sprintf( l.sl_name, "PATH=%s", addr );
730 #endif /* LDAP_PF_LOCAL */
734 #if defined( HAVE_GETADDRINFO ) && defined( HAVE_INET_NTOP )
735 char addr[INET_ADDRSTRLEN];
736 inet_ntop( AF_INET, &((struct sockaddr_in *)*sal)->sin_addr,
737 addr, sizeof(addr) );
739 port = ((struct sockaddr_in *)*sal) ->sin_port;
741 s = inet_ntoa( l.sl_addr.sin_addr );
742 port = l.sl_addr.sin_port;
744 l.sl_name = ch_malloc( sizeof("IP=255.255.255.255:65535") );
745 sprintf( l.sl_name, "IP=%s:%d",
746 s != NULL ? s : "unknown" , port );
751 char addr[INET6_ADDRSTRLEN];
752 inet_ntop( AF_INET6, &((struct sockaddr_in6 *)*sal)->sin6_addr,
754 port = ((struct sockaddr_in6 *)*sal)->sin6_port;
755 l.sl_name = ch_malloc( strlen(addr) + sizeof("IP= 65535") );
756 sprintf( l.sl_name, "IP=%s %d", addr, port );
758 #endif /* LDAP_PF_INET6 */
762 LDAP_LOG(( "connection", LDAP_LEVEL_INFO,
763 "slap_open_listener: unsupported address family (%d)\n",
764 (int)(*sal)->sa_family ));
766 Debug( LDAP_DEBUG_ANY, "daemon: unsupported address family (%d)\n",
767 (int) (*sal)->sa_family, 0, 0 );
772 slap_free_listener_addresses(psal);
774 l.sl_url = ch_strdup( url );
775 li = ch_malloc( sizeof( Listener ) );
779 LDAP_LOG(( "connection", LDAP_LEVEL_RESULTS,
780 "slap_open_listener: daemon initialzed %s\n", l.sl_url ));
782 Debug( LDAP_DEBUG_TRACE, "daemon: initialized %s\n",
788 static int sockinit(void);
789 static int sockdestroy(void);
791 int slapd_daemon_init( const char *urls )
797 LDAP_LOG(( "connection", LDAP_LEVEL_ARGS,
798 "slapd_daemon_init: %s\n",
799 urls ? urls : "<null>" ));
801 Debug( LDAP_DEBUG_ARGS, "daemon_init: %s\n",
802 urls ? urls : "<null>", 0, 0 );
804 if( (rc = sockinit()) != 0 ) {
809 dtblsize = sysconf( _SC_OPEN_MAX );
810 #elif HAVE_GETDTABLESIZE
811 dtblsize = getdtablesize();
813 dtblsize = FD_SETSIZE;
817 if(dtblsize > FD_SETSIZE) {
818 dtblsize = FD_SETSIZE;
820 #endif /* !FD_SETSIZE */
822 /* open a pipe (or something equivalent connected to itself).
823 * we write a byte on this fd whenever we catch a signal. The main
824 * loop will be select'ing on this socket, and will wake up when
827 if( (rc = lutil_pair( wake_sds )) < 0 ) {
829 LDAP_LOG(( "connection", LDAP_LEVEL_ERR,
830 "slap_daemon_init: lutil_pair() failed rc=%d\n", rc ));
832 Debug( LDAP_DEBUG_ANY,
833 "daemon: lutil_pair() failed rc=%d\n", rc, 0, 0 );
838 FD_ZERO( &slap_daemon.sd_readers );
839 FD_ZERO( &slap_daemon.sd_writers );
845 u = str2charray( urls, " " );
847 if( u == NULL || u[0] == NULL ) {
849 LDAP_LOG(( "connection", LDAP_LEVEL_ERR,
850 "slap_daemon_init: no urls (%s) provided.\n", urls ));
852 Debug( LDAP_DEBUG_ANY, "daemon_init: no urls (%s) provided.\n",
858 for( i=0; u[i] != NULL; i++ ) {
860 LDAP_LOG(( "connection", LDAP_LEVEL_DETAIL1,
861 "slap_daemon_init: listen on %s\n.", u[i] ));
863 Debug( LDAP_DEBUG_TRACE, "daemon_init: listen on %s\n",
870 LDAP_LOG(( "connection", LDAP_LEVEL_INFO,
871 "slap_daemon_init: no listeners to open (%s)\n", urls ));
873 Debug( LDAP_DEBUG_ANY, "daemon_init: no listeners to open (%s)\n",
881 LDAP_LOG(( "connection", LDAP_LEVEL_INFO,
882 "slap_daemon_init: %d listeners to open...\n", i ));
884 Debug( LDAP_DEBUG_TRACE, "daemon_init: %d listeners to open...\n",
887 slap_listeners = ch_malloc( (i+1)*sizeof(Listener *) );
889 for(i = 0; u[i] != NULL; i++ ) {
890 slap_listeners[i] = slap_open_listener( u[i] );
892 if( slap_listeners[i] == NULL ) {
897 slap_listeners[i] = NULL;
900 LDAP_LOG(( "connection", LDAP_LEVEL_DETAIL1,
901 "slap_daemon_init: %d listeners opened\n", i ));
903 Debug( LDAP_DEBUG_TRACE, "daemon_init: %d listeners opened\n",
908 slapd_slp_init( urls );
913 ldap_pvt_thread_mutex_init( &slap_daemon.sd_mutex );
919 slapd_daemon_destroy(void)
921 connections_destroy();
922 tcp_close( wake_sds[1] );
923 tcp_close( wake_sds[0] );
941 time_t last_idle_check = slap_get_time();
944 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
945 if ( slap_listeners[l]->sl_sd == AC_SOCKET_INVALID )
947 #ifdef LDAP_CONNECTIONLESS
948 /* Since this is connectionless, the data port is the
949 * listening port. The listen() and accept() calls
952 if ( slap_listeners[l]->sl_is_udp )
954 slapd_add( slap_listeners[l]->sl_sd );
959 if ( listen( slap_listeners[l]->sl_sd, SLAPD_LISTEN ) == -1 ) {
960 int err = sock_errno();
962 LDAP_LOG(( "connection", LDAP_LEVEL_ERR,
963 "slapd_daemon_task: listen( %s, 5 ) failed errno=%d (%s)\n",
964 slap_listeners[l]->sl_url, err, sock_errstr(err) ));
966 Debug( LDAP_DEBUG_ANY,
967 "daemon: listen(%s, 5) failed errno=%d (%s)\n",
968 slap_listeners[l]->sl_url, err,
974 slapd_add( slap_listeners[l]->sl_sd );
977 #ifdef HAVE_NT_SERVICE_MANAGER
978 if ( started_event != NULL ) {
979 ldap_pvt_thread_cond_signal( &started_event );
982 /* initialization complete. Here comes the loop. */
984 while ( !slapd_shutdown ) {
989 #define SLAPD_EBADF_LIMIT 16
991 #if defined( EMFILE ) || defined( ENFILE )
995 #define SLAPD_IDLE_CHECK_LIMIT 4
996 time_t now = slap_get_time();
1003 #if defined(SLAPD_RLOOKUPS)
1006 struct timeval zero;
1007 struct timeval *tvp;
1010 #if defined( EMFILE ) || defined( ENFILE )
1013 ( global_idletimeout > 0 && difftime(
1014 last_idle_check+global_idletimeout/SLAPD_IDLE_CHECK_LIMIT,
1017 connections_timeout_idle(now);
1020 FD_ZERO( &writefds );
1021 FD_ZERO( &readfds );
1026 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
1028 #ifdef FD_SET_MANUAL_COPY
1029 for( s = 0; s < nfds; s++ ) {
1030 if(FD_ISSET( &slap_sd_readers, s )) {
1031 FD_SET( s, &readfds );
1033 if(FD_ISSET( &slap_sd_writers, s )) {
1034 FD_SET( s, &writefds );
1038 AC_MEMCPY( &readfds, &slap_daemon.sd_readers, sizeof(fd_set) );
1039 AC_MEMCPY( &writefds, &slap_daemon.sd_writers, sizeof(fd_set) );
1041 assert(!FD_ISSET(wake_sds[0], &readfds));
1042 FD_SET( wake_sds[0], &readfds );
1044 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1045 if ( slap_listeners[l]->sl_sd == AC_SOCKET_INVALID )
1047 if (!FD_ISSET(slap_listeners[l]->sl_sd, &readfds))
1048 FD_SET( slap_listeners[l]->sl_sd, &readfds );
1051 #ifndef HAVE_WINSOCK
1052 nfds = slap_daemon.sd_nfds;
1057 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
1059 at = ldap_pvt_thread_pool_backload(&connection_pool);
1061 #if defined( HAVE_YIELDING_SELECT ) || defined( NO_THREADS )
1064 tvp = at ? &zero : NULL;
1067 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1068 if ( slap_listeners[l]->sl_sd == AC_SOCKET_INVALID )
1072 LDAP_LOG(( "connection", LDAP_LEVEL_DETAIL1,
1073 "slapd_daemon_task: select: listen=%d active_threads=%d tvp=%s\n",
1074 slap_listeners[l]->sl_sd, at, tvp == NULL ? "NULL" : "zero" ));
1076 Debug( LDAP_DEBUG_CONNS,
1077 "daemon: select: listen=%d active_threads=%d tvp=%s\n",
1078 slap_listeners[l]->sl_sd, at,
1079 tvp == NULL ? "NULL" : "zero" );
1083 switch(ns = select( nfds, &readfds,
1085 /* don't pass empty fd_set */
1086 ( writefds.fd_count > 0 ? &writefds : NULL ),
1092 case -1: { /* failure - try again */
1093 int err = sock_errno();
1097 /* you'd think this would be EBADF */
1098 || err == WSAENOTSOCK
1101 if (++ebadf < SLAPD_EBADF_LIMIT)
1105 if( err != EINTR ) {
1107 LDAP_LOG(( "connection", LDAP_LEVEL_INFO,
1108 "slapd_daemon_task: select failed (%d): %s\n",
1109 err, sock_errstr(err) ));
1111 Debug( LDAP_DEBUG_CONNS,
1112 "daemon: select failed (%d): %s\n",
1113 err, sock_errstr(err), 0 );
1115 slapd_shutdown = -1;
1120 case 0: /* timeout - let threads run */
1123 LDAP_LOG(( "connection", LDAP_LEVEL_DETAIL2,
1124 "slapd_daemon_task: select timeout - yielding\n" ));
1126 Debug( LDAP_DEBUG_CONNS, "daemon: select timeout - yielding\n",
1129 ldap_pvt_thread_yield();
1132 default: /* something happened - deal with it */
1133 if( slapd_shutdown ) continue;
1137 LDAP_LOG(( "connection", LDAP_LEVEL_DETAIL2,
1138 "slapd_daemon_task: activity on %d descriptors\n", ns ));
1140 Debug( LDAP_DEBUG_CONNS, "daemon: activity on %d descriptors\n",
1146 if( FD_ISSET( wake_sds[0], &readfds ) ) {
1148 tcp_read( wake_sds[0], c, sizeof(c) );
1155 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1157 socklen_t len = sizeof(from);
1160 char *authid = NULL;
1164 #ifdef LDAP_PF_LOCAL
1165 char peername[MAXPATHLEN + sizeof("PATH=")];
1166 #elif defined(LDAP_PF_INET6)
1167 char peername[sizeof("IP=ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff 65535")];
1169 char peername[sizeof("IP=255.255.255.255:65336")];
1170 #endif /* LDAP_PF_LOCAL */
1174 if ( slap_listeners[l]->sl_sd == AC_SOCKET_INVALID )
1177 if ( !FD_ISSET( slap_listeners[l]->sl_sd, &readfds ) )
1180 #ifdef LDAP_CONNECTIONLESS
1181 if ( slap_listeners[l]->sl_is_udp )
1183 /* The first time we receive a query, we set this
1184 * up as a "connection". It remains open for the life
1187 if ( slap_listeners[l]->sl_is_udp < 2 )
1189 id = connection_init(
1190 slap_listeners[l]->sl_sd,
1191 slap_listeners[l]->sl_url, "", "",
1192 slap_listeners[l]->sl_name,
1194 slap_listeners[l]->sl_is_udp++;
1200 s = accept( slap_listeners[l]->sl_sd,
1201 (struct sockaddr *) &from, &len );
1202 if ( s == AC_SOCKET_INVALID ) {
1203 int err = sock_errno();
1205 ldap_pvt_thread_yield();
1207 #if defined( EMFILE ) || defined( ENFILE )
1209 if( err == EMFILE ) {
1214 if( err == ENFILE ) {
1218 /* prevent busy loop */
1220 if( emfile % 4 == 3 ) usleep( 250 );
1222 if( emfile % 8 == 7 ) sleep( 1 );
1228 LDAP_LOG(( "connection", LDAP_LEVEL_ERR,
1229 "slapd_daemon_task: accept(%ld) failed errno=%d (%s)\n",
1230 (long)slap_listeners[l]->sl_sd, err, sock_errstr(err) ));
1232 Debug( LDAP_DEBUG_ANY,
1233 "daemon: accept(%ld) failed errno=%d (%s)\n",
1234 (long) slap_listeners[l]->sl_sd, err,
1242 #ifndef HAVE_WINSOCK
1243 /* make sure descriptor number isn't too great */
1244 if ( s >= dtblsize ) {
1246 LDAP_LOG(( "connection", LDAP_LEVEL_ERR,
1247 "slapd_daemon_task: %ld beyond descriptor table size %ld\n",
1248 (long)s, (long)dtblsize ));
1250 Debug( LDAP_DEBUG_ANY,
1251 "daemon: %ld beyond descriptor table size %ld\n",
1252 (long) s, (long) dtblsize, 0 );
1255 ldap_pvt_thread_yield();
1261 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
1263 /* newly accepted stream should not be in any of the FD SETS */
1264 assert( !FD_ISSET( s, &slap_daemon.sd_actives) );
1265 assert( !FD_ISSET( s, &slap_daemon.sd_readers) );
1266 assert( !FD_ISSET( s, &slap_daemon.sd_writers) );
1268 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
1271 #if defined( SO_KEEPALIVE ) || defined( TCP_NODELAY )
1272 #ifdef LDAP_PF_LOCAL
1273 /* for IPv4 and IPv6 sockets only */
1274 if ( from.sa_addr.sa_family != AF_LOCAL )
1275 #endif /* LDAP_PF_LOCAL */
1280 /* enable keep alives */
1282 rc = setsockopt( s, SOL_SOCKET, SO_KEEPALIVE,
1283 (char *) &tmp, sizeof(tmp) );
1284 if ( rc == AC_SOCKET_ERROR ) {
1285 int err = sock_errno();
1287 LDAP_LOG(( "connection", LDAP_LEVEL_ERR,
1288 "slapd_daemon_task: setsockopt( %ld, SO_KEEPALIVE) failed errno=%d (%s)\n",
1289 (long)s, err, sock_errstr(err) ));
1291 Debug( LDAP_DEBUG_ANY,
1292 "slapd(%ld): setsockopt(SO_KEEPALIVE) failed "
1293 "errno=%d (%s)\n", (long) s, err, sock_errstr(err) );
1298 /* enable no delay */
1300 rc = setsockopt( s, IPPROTO_TCP, TCP_NODELAY,
1301 (char *)&tmp, sizeof(tmp) );
1302 if ( rc == AC_SOCKET_ERROR ) {
1303 int err = sock_errno();
1305 LDAP_LOG(( "connection", LDAP_LEVEL_ERR,
1306 "slapd_daemon_task: setsockopt( %ld, TCP_NODELAY) failed errno=%d (%s)\n",
1307 (long)s, err, sock_errstr(err) ));
1309 Debug( LDAP_DEBUG_ANY,
1310 "slapd(%ld): setsockopt(TCP_NODELAY) failed "
1311 "errno=%d (%s)\n", (long) s, err, sock_errstr(err) );
1319 LDAP_LOG(( "connection", LDAP_LEVEL_DETAIL1,
1320 "slapd_daemon_task: new connection on %ld\n", (long)s ));
1322 Debug( LDAP_DEBUG_CONNS, "daemon: new connection on %ld\n",
1325 switch ( from.sa_addr.sa_family ) {
1326 # ifdef LDAP_PF_LOCAL
1328 sprintf( peername, "PATH=%s", from.sa_un_addr.sun_path );
1329 ssf = LDAP_PVT_SASL_LOCAL_SSF;
1331 #endif /* LDAP_PF_LOCAL */
1333 # ifdef LDAP_PF_INET6
1335 if ( IN6_IS_ADDR_V4MAPPED(&from.sa_in6_addr.sin6_addr) ) {
1336 peeraddr = inet_ntoa( *((struct in_addr *)
1337 &from.sa_in6_addr.sin6_addr.s6_addr[12]) );
1338 sprintf( peername, "IP=%s:%d",
1339 peeraddr != NULL ? peeraddr : "unknown",
1340 (unsigned) ntohs( from.sa_in6_addr.sin6_port ) );
1342 char addr[INET6_ADDRSTRLEN];
1343 sprintf( peername, "IP=%s %d",
1344 inet_ntop( AF_INET6,
1345 &from.sa_in6_addr.sin6_addr,
1346 addr, sizeof addr) ? addr : "unknown",
1347 (unsigned) ntohs( from.sa_in6_addr.sin6_port ) );
1350 # endif /* LDAP_PF_INET6 */
1353 peeraddr = inet_ntoa( from.sa_in_addr.sin_addr );
1354 sprintf( peername, "IP=%s:%d",
1355 peeraddr != NULL ? peeraddr : "unknown",
1356 (unsigned) ntohs( from.sa_in_addr.sin_port ) );
1364 if ( ( from.sa_addr.sa_family == AF_INET )
1365 #ifdef LDAP_PF_INET6
1366 || ( from.sa_addr.sa_family == AF_INET6 )
1369 #ifdef SLAPD_RLOOKUPS
1370 # ifdef LDAP_PF_INET6
1371 if ( from.sa_addr.sa_family == AF_INET6 )
1373 (char *)&(from.sa_in6_addr.sin6_addr),
1374 sizeof(from.sa_in6_addr.sin6_addr),
1377 # endif /* LDAP_PF_INET6 */
1379 (char *) &(from.sa_in_addr.sin_addr),
1380 sizeof(from.sa_in_addr.sin_addr),
1382 dnsname = hp ? ldap_pvt_str2lower( hp->h_name ) : NULL;
1385 #endif /* SLAPD_RLOOKUPS */
1388 if ( !hosts_ctl("slapd",
1389 dnsname != NULL ? dnsname : STRING_UNKNOWN,
1390 peeraddr != NULL ? peeraddr : STRING_UNKNOWN,
1394 Statslog( LDAP_DEBUG_ANY,
1395 "fd=%ld host access from %s (%s) denied.\n",
1397 dnsname != NULL ? dnsname : "unknown",
1398 peeraddr != NULL ? peeraddr : "unknown",
1403 #endif /* HAVE_TCPD */
1406 id = connection_init(s,
1407 slap_listeners[l]->sl_url,
1408 dnsname != NULL ? dnsname : "unknown",
1410 slap_listeners[l]->sl_name,
1412 slap_listeners[l]->sl_is_tls,
1419 if( authid ) ch_free(authid);
1423 LDAP_LOG(( "connection", LDAP_LEVEL_INFO,
1424 "slapd_daemon_task: connection_init(%ld, %s, %s) failed.\n",
1425 (long)s, peername, slap_listeners[l]->sl_name ));
1427 Debug( LDAP_DEBUG_ANY,
1428 "daemon: connection_init(%ld, %s, %s) failed.\n",
1431 slap_listeners[l]->sl_name );
1437 Statslog( LDAP_DEBUG_STATS,
1438 "daemon: conn=%ld fd=%ld connection from %s (%s) accepted.\n",
1441 slap_listeners[l]->sl_name,
1450 LDAP_LOG(( "connection", LDAP_LEVEL_DETAIL2,
1451 "slapd_daemon_task: activity on " ));
1453 Debug( LDAP_DEBUG_CONNS, "daemon: activity on:", 0, 0, 0 );
1456 for ( i = 0; i < readfds.fd_count; i++ ) {
1458 LDAP_LOG(( "connection", LDAP_LEVEL_DETAIL2,
1459 " %d%s", readfds.fd_array[i], "r", 0 ));
1461 Debug( LDAP_DEBUG_CONNS, " %d%s",
1462 readfds.fd_array[i], "r", 0 );
1465 for ( i = 0; i < writefds.fd_count; i++ ) {
1467 LDAP_LOG(( "connection", LDAP_LEVEL_DETAIL2,
1468 " %d%s", writefds.fd_array[i], "w" ));
1470 Debug( LDAP_DEBUG_CONNS, " %d%s",
1471 writefds.fd_array[i], "w", 0 );
1476 for ( i = 0; i < nfds; i++ ) {
1478 int is_listener = 0;
1480 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1481 if ( i == slap_listeners[l]->sl_sd ) {
1482 #ifdef LDAP_CONNECTIONLESS
1483 /* The listener is the data port. Don't
1486 if (slap_listeners[l]->sl_is_udp)
1493 if ( is_listener ) {
1496 r = FD_ISSET( i, &readfds );
1497 w = FD_ISSET( i, &writefds );
1500 LDAP_LOG(( "connection", LDAP_LEVEL_DETAIL2,
1502 r ? "r" : "", w ? "w" : "" ));
1504 Debug( LDAP_DEBUG_CONNS, " %d%s%s", i,
1505 r ? "r" : "", w ? "w" : "" );
1511 LDAP_LOG(( "connection", LDAP_LEVEL_DETAIL2, "\n" ));
1513 Debug( LDAP_DEBUG_CONNS, "\n", 0, 0, 0 );
1518 /* loop through the writers */
1520 for ( i = 0; i < writefds.fd_count; i++ )
1522 for ( i = 0; i < nfds; i++ )
1526 int is_listener = 0;
1528 wd = writefds.fd_array[i];
1530 if( ! FD_ISSET( i, &writefds ) ) {
1536 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1537 if ( i == slap_listeners[l]->sl_sd ) {
1538 #ifdef LDAP_CONNECTIONLESS
1539 if (slap_listeners[l]->sl_is_udp)
1546 if ( is_listener ) {
1550 LDAP_LOG(( "connection", LDAP_LEVEL_DETAIL2,
1551 "slapd_daemon_task: write active on %d\n", wd ));
1553 Debug( LDAP_DEBUG_CONNS,
1554 "daemon: write active on %d\n",
1558 * NOTE: it is possible that the connection was closed
1559 * and that the stream is now inactive.
1560 * connection_write() must valid the stream is still
1564 if ( connection_write( wd ) < 0 ) {
1565 FD_CLR( (unsigned) wd, &readfds );
1571 for ( i = 0; i < readfds.fd_count; i++ )
1573 for ( i = 0; i < nfds; i++ )
1577 int is_listener = 0;
1580 rd = readfds.fd_array[i];
1582 if( ! FD_ISSET( i, &readfds ) ) {
1588 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1589 if ( rd == slap_listeners[l]->sl_sd ) {
1590 #ifdef LDAP_CONNECTIONLESS
1591 if (slap_listeners[l]->sl_is_udp)
1598 if ( is_listener ) {
1603 LDAP_LOG(( "connection", LDAP_LEVEL_DETAIL2,
1604 "slapd_daemon_task: read activity on %d\n", rd ));
1606 Debug ( LDAP_DEBUG_CONNS,
1607 "daemon: read activity on %d\n", rd, 0, 0 );
1610 * NOTE: it is possible that the connection was closed
1611 * and that the stream is now inactive.
1612 * connection_read() must valid the stream is still
1616 if ( connection_read( rd ) < 0 ) {
1620 ldap_pvt_thread_yield();
1623 if( slapd_shutdown > 0 ) {
1625 LDAP_LOG(( "connection", LDAP_LEVEL_CRIT,
1626 "slapd_daemon_task: shutdown requested and initiated.\n"));
1628 Debug( LDAP_DEBUG_TRACE,
1629 "daemon: shutdown requested and initiated.\n",
1633 } else if ( slapd_shutdown < 0 ) {
1634 #ifdef HAVE_NT_SERVICE_MANAGER
1635 if (slapd_shutdown == -1)
1638 LDAP_LOG(( "connection", LDAP_LEVEL_CRIT,
1639 "slapd_daemon_task: shutdown initiated by Service Manager.\n"));
1641 Debug( LDAP_DEBUG_TRACE,
1642 "daemon: shutdown initiated by Service Manager.\n",
1650 LDAP_LOG(( "connection", LDAP_LEVEL_CRIT,
1651 "slapd_daemon_task: abnormal condition, shutdown initiated.\n" ));
1653 Debug( LDAP_DEBUG_TRACE,
1654 "daemon: abnormal condition, shutdown initiated.\n",
1660 LDAP_LOG(( "connection", LDAP_LEVEL_CRIT,
1661 "slapd_daemon_task: no active streams, shutdown initiated.\n" ));
1663 Debug( LDAP_DEBUG_TRACE,
1664 "daemon: no active streams, shutdown initiated.\n",
1669 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1670 if ( slap_listeners[l]->sl_sd != AC_SOCKET_INVALID ) {
1671 #ifdef LDAP_PF_LOCAL
1672 if ( slap_listeners[l]->sl_sa.sa_addr.sa_family == AF_LOCAL ) {
1673 unlink( slap_listeners[l]->sl_sa.sa_un_addr.sun_path );
1675 #endif /* LDAP_PF_LOCAL */
1676 slapd_close( slap_listeners[l]->sl_sd );
1682 LDAP_LOG(( "connection", LDAP_LEVEL_CRIT,
1683 "slapd_daemon_task: shutdown waiting for %d threads to terminate.\n",
1684 ldap_pvt_thread_pool_backload(&connection_pool) ));
1686 Debug( LDAP_DEBUG_ANY,
1687 "slapd shutdown: waiting for %d threads to terminate\n",
1688 ldap_pvt_thread_pool_backload(&connection_pool), 0, 0 );
1690 ldap_pvt_thread_pool_destroy(&connection_pool, 1);
1696 int slapd_daemon( void )
1702 #define SLAPD_LISTENER_THREAD 1
1703 #if defined( SLAPD_LISTENER_THREAD )
1705 ldap_pvt_thread_t listener_tid;
1707 /* listener as a separate THREAD */
1708 rc = ldap_pvt_thread_create( &listener_tid,
1709 0, slapd_daemon_task, NULL );
1713 LDAP_LOG(( "connection", LDAP_LEVEL_ERR,
1714 "slapd_daemon: listener ldap_pvt_thread_create failed (%d).\n", rc ));
1716 Debug( LDAP_DEBUG_ANY,
1717 "listener ldap_pvt_thread_create failed (%d)\n", rc, 0, 0 );
1722 /* wait for the listener thread to complete */
1723 ldap_pvt_thread_join( listener_tid, (void *) NULL );
1726 /* experimental code */
1727 slapd_daemon_task( NULL );
1736 #if defined( HAVE_WINSOCK2 )
1737 WORD wVersionRequested;
1741 wVersionRequested = MAKEWORD( 2, 0 );
1743 err = WSAStartup( wVersionRequested, &wsaData );
1745 /* Tell the user that we couldn't find a usable */
1750 /* Confirm that the WinSock DLL supports 2.0.*/
1751 /* Note that if the DLL supports versions greater */
1752 /* than 2.0 in addition to 2.0, it will still return */
1753 /* 2.0 in wVersion since that is the version we */
1756 if ( LOBYTE( wsaData.wVersion ) != 2 ||
1757 HIBYTE( wsaData.wVersion ) != 0 )
1759 /* Tell the user that we couldn't find a usable */
1765 /* The WinSock DLL is acceptable. Proceed. */
1766 #elif defined( HAVE_WINSOCK )
1768 if ( WSAStartup( 0x0101, &wsaData ) != 0 ) {
1775 int sockdestroy(void)
1777 #if defined( HAVE_WINSOCK2 ) || defined( HAVE_WINSOCK )
1784 slap_sig_shutdown( int sig )
1787 LDAP_LOG(( "connection", LDAP_LEVEL_CRIT,
1788 "slap_sig_shutdown: signal %d\n", sig ));
1790 Debug(LDAP_DEBUG_TRACE, "slap_sig_shutdown: signal %d\n", sig, 0, 0);
1794 * If the NT Service Manager is controlling the server, we don't
1795 * want SIGBREAK to kill the server. For some strange reason,
1796 * SIGBREAK is generated when a user logs out.
1799 #if HAVE_NT_SERVICE_MANAGER && SIGBREAK
1800 if (is_NT_Service && sig == SIGBREAK)
1802 LDAP_LOG(( "connection", LDAP_LEVEL_CRIT,
1803 "slap_sig_shutdown: SIGBREAK ignored.\n" ));
1805 Debug(LDAP_DEBUG_TRACE, "slap_sig_shutdown: SIGBREAK ignored.\n",
1810 slapd_shutdown = sig;
1814 /* reinstall self */
1815 (void) SIGNAL_REINSTALL( sig, slap_sig_shutdown );
1819 slap_sig_wake( int sig )
1823 /* reinstall self */
1824 (void) SIGNAL_REINSTALL( sig, slap_sig_wake );
1828 void slapd_add_internal(ber_socket_t s) {