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 if ( tmp == LDAP_PROTO_UDP )
577 if( lud->lud_host == NULL || lud->lud_host[0] == '\0'
578 || strcmp(lud->lud_host, "*") == 0 )
580 err = slap_get_listener_addresses(NULL, port, &sal);
582 err = slap_get_listener_addresses(lud->lud_host, port, &sal);
586 ldap_free_urldesc( lud );
592 while ( *sal != NULL ) {
593 switch( (*sal)->sa_family ) {
606 #ifdef LDAP_CONNECTIONLESS
608 socktype = SOCK_DGRAM;
610 l.sl_sd = socket( (*sal)->sa_family, socktype, 0);
611 if ( l.sl_sd == AC_SOCKET_INVALID ) {
612 int err = sock_errno();
614 LDAP_LOG(( "connection", LDAP_LEVEL_ERR,
615 "slap_open_listener: socket() failed errno=%d (%s)\n",
616 err, sock_errstr(err) ));
618 Debug( LDAP_DEBUG_ANY,
619 "daemon: socket() failed errno=%d (%s)\n", err,
620 sock_errstr(err), 0 );
626 if ( l.sl_sd >= dtblsize ) {
628 LDAP_LOG(( "connection", LDAP_LEVEL_ERR,
629 "slap_open_listener: listener descriptor %ld is too great %ld\n",
630 (long)l.sl_sd, (long)dtblsize ));
632 Debug( LDAP_DEBUG_ANY,
633 "daemon: listener descriptor %ld is too great %ld\n",
634 (long) l.sl_sd, (long) dtblsize, 0 );
636 tcp_close( l.sl_sd );
642 if ( (*sal)->sa_family == AF_LOCAL ) {
643 unlink ( ((struct sockaddr_un *)*sal)->sun_path );
648 /* enable address reuse */
650 rc = setsockopt( l.sl_sd, SOL_SOCKET, SO_REUSEADDR,
651 (char *) &tmp, sizeof(tmp) );
652 if ( rc == AC_SOCKET_ERROR ) {
653 int err = sock_errno();
655 LDAP_LOG(( "connection", LDAP_LEVEL_INFO,
656 "slap_open_listener: setsockopt( %ld, SO_REUSEADDR ) failed errno %d (%s)\n",
657 (long)l.sl_sd, err, sock_errstr(err) ));
659 Debug( LDAP_DEBUG_ANY,
660 "slapd(%ld): setsockopt(SO_REUSEADDR) failed errno=%d (%s)\n",
661 (long) l.sl_sd, err, sock_errstr(err) );
667 switch( (*sal)->sa_family ) {
669 addrlen = sizeof(struct sockaddr_in);
673 addrlen = sizeof(struct sockaddr_in6);
678 addrlen = sizeof(struct sockaddr_un);
683 if (!bind(l.sl_sd, *sal, addrlen))
687 LDAP_LOG(( "connection", LDAP_LEVEL_INFO,
688 "slap_open_listener: bind(%ld) failed errno=%d (%s)\n",
689 (long)l.sl_sd, err, sock_errstr(err) ));
691 Debug( LDAP_DEBUG_ANY, "daemon: bind(%ld) failed errno=%d (%s)\n",
692 (long) l.sl_sd, err, sock_errstr(err) );
694 tcp_close( l.sl_sd );
696 } /* while ( *sal != NULL ) */
698 if ( *sal == NULL ) {
700 LDAP_LOG(( "connection", LDAP_LEVEL_INFO,
701 "slap_open_listener: bind(%ld) failed.\n", (long)l.sl_sd ));
703 Debug( LDAP_DEBUG_ANY, "daemon: bind(%ld) failed\n",
704 (long) l.sl_sd, 0, 0 );
706 slap_free_listener_addresses(psal);
710 switch ( (*sal)->sa_family ) {
713 char *addr = ((struct sockaddr_un *)*sal)->sun_path;
714 if ( chmod( addr, S_IRWXU ) < 0 ) {
715 int err = sock_errno();
717 LDAP_LOG(( "connection", LDAP_LEVEL_INFO,
718 "slap_open_listener: fchmod(%ld) failed errno=%d (%s)\n",
719 (long)l.sl_sd, err, sock_errstr(err) ));
721 Debug( LDAP_DEBUG_ANY, "daemon: fchmod(%ld) failed errno=%d (%s)",
722 (long) l.sl_sd, err, sock_errstr(err) );
724 tcp_close( l.sl_sd );
725 slap_free_listener_addresses(psal);
728 l.sl_name = ch_malloc( strlen(addr) + sizeof("PATH=") );
729 sprintf( l.sl_name, "PATH=%s", addr );
731 #endif /* LDAP_PF_LOCAL */
735 #if defined( HAVE_GETADDRINFO ) && defined( HAVE_INET_NTOP )
736 char addr[INET_ADDRSTRLEN];
737 inet_ntop( AF_INET, &((struct sockaddr_in *)*sal)->sin_addr,
738 addr, sizeof(addr) );
740 port = ((struct sockaddr_in *)*sal) ->sin_port;
742 s = inet_ntoa( l.sl_addr.sin_addr );
743 port = l.sl_addr.sin_port;
745 l.sl_name = ch_malloc( sizeof("IP=255.255.255.255:65535") );
746 sprintf( l.sl_name, "IP=%s:%d",
747 s != NULL ? s : "unknown" , port );
752 char addr[INET6_ADDRSTRLEN];
753 inet_ntop( AF_INET6, &((struct sockaddr_in6 *)*sal)->sin6_addr,
755 port = ((struct sockaddr_in6 *)*sal)->sin6_port;
756 l.sl_name = ch_malloc( strlen(addr) + sizeof("IP= 65535") );
757 sprintf( l.sl_name, "IP=%s %d", addr, port );
759 #endif /* LDAP_PF_INET6 */
763 LDAP_LOG(( "connection", LDAP_LEVEL_INFO,
764 "slap_open_listener: unsupported address family (%d)\n",
765 (int)(*sal)->sa_family ));
767 Debug( LDAP_DEBUG_ANY, "daemon: unsupported address family (%d)\n",
768 (int) (*sal)->sa_family, 0, 0 );
773 slap_free_listener_addresses(psal);
775 l.sl_url = ch_strdup( url );
776 li = ch_malloc( sizeof( Listener ) );
780 LDAP_LOG(( "connection", LDAP_LEVEL_RESULTS,
781 "slap_open_listener: daemon initialzed %s\n", l.sl_url ));
783 Debug( LDAP_DEBUG_TRACE, "daemon: initialized %s\n",
789 static int sockinit(void);
790 static int sockdestroy(void);
792 int slapd_daemon_init( const char *urls )
798 LDAP_LOG(( "connection", LDAP_LEVEL_ARGS,
799 "slapd_daemon_init: %s\n",
800 urls ? urls : "<null>" ));
802 Debug( LDAP_DEBUG_ARGS, "daemon_init: %s\n",
803 urls ? urls : "<null>", 0, 0 );
805 if( (rc = sockinit()) != 0 ) {
810 dtblsize = sysconf( _SC_OPEN_MAX );
811 #elif HAVE_GETDTABLESIZE
812 dtblsize = getdtablesize();
814 dtblsize = FD_SETSIZE;
818 if(dtblsize > FD_SETSIZE) {
819 dtblsize = FD_SETSIZE;
821 #endif /* !FD_SETSIZE */
823 /* open a pipe (or something equivalent connected to itself).
824 * we write a byte on this fd whenever we catch a signal. The main
825 * loop will be select'ing on this socket, and will wake up when
828 if( (rc = lutil_pair( wake_sds )) < 0 ) {
830 LDAP_LOG(( "connection", LDAP_LEVEL_ERR,
831 "slap_daemon_init: lutil_pair() failed rc=%d\n", rc ));
833 Debug( LDAP_DEBUG_ANY,
834 "daemon: lutil_pair() failed rc=%d\n", rc, 0, 0 );
839 FD_ZERO( &slap_daemon.sd_readers );
840 FD_ZERO( &slap_daemon.sd_writers );
846 u = str2charray( urls, " " );
848 if( u == NULL || u[0] == NULL ) {
850 LDAP_LOG(( "connection", LDAP_LEVEL_ERR,
851 "slap_daemon_init: no urls (%s) provided.\n", urls ));
853 Debug( LDAP_DEBUG_ANY, "daemon_init: no urls (%s) provided.\n",
859 for( i=0; u[i] != NULL; i++ ) {
861 LDAP_LOG(( "connection", LDAP_LEVEL_DETAIL1,
862 "slap_daemon_init: listen on %s\n.", u[i] ));
864 Debug( LDAP_DEBUG_TRACE, "daemon_init: listen on %s\n",
871 LDAP_LOG(( "connection", LDAP_LEVEL_INFO,
872 "slap_daemon_init: no listeners to open (%s)\n", urls ));
874 Debug( LDAP_DEBUG_ANY, "daemon_init: no listeners to open (%s)\n",
882 LDAP_LOG(( "connection", LDAP_LEVEL_INFO,
883 "slap_daemon_init: %d listeners to open...\n", i ));
885 Debug( LDAP_DEBUG_TRACE, "daemon_init: %d listeners to open...\n",
888 slap_listeners = ch_malloc( (i+1)*sizeof(Listener *) );
890 for(i = 0; u[i] != NULL; i++ ) {
891 slap_listeners[i] = slap_open_listener( u[i] );
893 if( slap_listeners[i] == NULL ) {
898 slap_listeners[i] = NULL;
901 LDAP_LOG(( "connection", LDAP_LEVEL_DETAIL1,
902 "slap_daemon_init: %d listeners opened\n", i ));
904 Debug( LDAP_DEBUG_TRACE, "daemon_init: %d listeners opened\n",
909 slapd_slp_init( urls );
914 ldap_pvt_thread_mutex_init( &slap_daemon.sd_mutex );
920 slapd_daemon_destroy(void)
922 connections_destroy();
923 tcp_close( wake_sds[1] );
924 tcp_close( wake_sds[0] );
942 time_t last_idle_check = slap_get_time();
945 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
946 if ( slap_listeners[l]->sl_sd == AC_SOCKET_INVALID )
948 #ifdef LDAP_CONNECTIONLESS
949 /* Since this is connectionless, the data port is the
950 * listening port. The listen() and accept() calls
953 if ( slap_listeners[l]->sl_is_udp )
955 slapd_add( slap_listeners[l]->sl_sd );
960 if ( listen( slap_listeners[l]->sl_sd, SLAPD_LISTEN ) == -1 ) {
961 int err = sock_errno();
963 LDAP_LOG(( "connection", LDAP_LEVEL_ERR,
964 "slapd_daemon_task: listen( %s, 5 ) failed errno=%d (%s)\n",
965 slap_listeners[l]->sl_url, err, sock_errstr(err) ));
967 Debug( LDAP_DEBUG_ANY,
968 "daemon: listen(%s, 5) failed errno=%d (%s)\n",
969 slap_listeners[l]->sl_url, err,
975 slapd_add( slap_listeners[l]->sl_sd );
978 #ifdef HAVE_NT_SERVICE_MANAGER
979 if ( started_event != NULL ) {
980 ldap_pvt_thread_cond_signal( &started_event );
983 /* initialization complete. Here comes the loop. */
985 while ( !slapd_shutdown ) {
990 #define SLAPD_EBADF_LIMIT 16
993 #define SLAPD_IDLE_CHECK_LIMIT 4
994 time_t now = slap_get_time();
1001 #if defined(SLAPD_RLOOKUPS)
1004 struct timeval zero;
1005 struct timeval *tvp;
1007 if( global_idletimeout > 0 && difftime(
1008 last_idle_check+global_idletimeout/SLAPD_IDLE_CHECK_LIMIT,
1011 connections_timeout_idle(now);
1014 FD_ZERO( &writefds );
1015 FD_ZERO( &readfds );
1020 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
1022 #ifdef FD_SET_MANUAL_COPY
1023 for( s = 0; s < nfds; s++ ) {
1024 if(FD_ISSET( &slap_sd_readers, s )) {
1025 FD_SET( s, &readfds );
1027 if(FD_ISSET( &slap_sd_writers, s )) {
1028 FD_SET( s, &writefds );
1032 AC_MEMCPY( &readfds, &slap_daemon.sd_readers, sizeof(fd_set) );
1033 AC_MEMCPY( &writefds, &slap_daemon.sd_writers, sizeof(fd_set) );
1035 assert(!FD_ISSET(wake_sds[0], &readfds));
1036 FD_SET( wake_sds[0], &readfds );
1038 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1039 if ( slap_listeners[l]->sl_sd == AC_SOCKET_INVALID )
1041 if (!FD_ISSET(slap_listeners[l]->sl_sd, &readfds))
1042 FD_SET( slap_listeners[l]->sl_sd, &readfds );
1045 #ifndef HAVE_WINSOCK
1046 nfds = slap_daemon.sd_nfds;
1051 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
1053 at = ldap_pvt_thread_pool_backload(&connection_pool);
1055 #if defined( HAVE_YIELDING_SELECT ) || defined( NO_THREADS )
1058 tvp = at ? &zero : NULL;
1061 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1062 if ( slap_listeners[l]->sl_sd == AC_SOCKET_INVALID )
1066 LDAP_LOG(( "connection", LDAP_LEVEL_DETAIL1,
1067 "slapd_daemon_task: select: listen=%d active_threads=%d tvp=%s\n",
1068 slap_listeners[l]->sl_sd, at, tvp == NULL ? "NULL" : "zero" ));
1070 Debug( LDAP_DEBUG_CONNS,
1071 "daemon: select: listen=%d active_threads=%d tvp=%s\n",
1072 slap_listeners[l]->sl_sd, at,
1073 tvp == NULL ? "NULL" : "zero" );
1077 switch(ns = select( nfds, &readfds,
1079 /* don't pass empty fd_set */
1080 ( writefds.fd_count > 0 ? &writefds : NULL ),
1086 case -1: { /* failure - try again */
1087 int err = sock_errno();
1091 /* you'd think this would be EBADF */
1092 || err == WSAENOTSOCK
1095 if (++ebadf < SLAPD_EBADF_LIMIT)
1099 if( err != EINTR ) {
1101 LDAP_LOG(( "connection", LDAP_LEVEL_INFO,
1102 "slapd_daemon_task: select failed (%d): %s\n",
1103 err, sock_errstr(err) ));
1105 Debug( LDAP_DEBUG_CONNS,
1106 "daemon: select failed (%d): %s\n",
1107 err, sock_errstr(err), 0 );
1109 slapd_shutdown = -1;
1114 case 0: /* timeout - let threads run */
1117 LDAP_LOG(( "connection", LDAP_LEVEL_DETAIL2,
1118 "slapd_daemon_task: select timeout - yielding\n" ));
1120 Debug( LDAP_DEBUG_CONNS, "daemon: select timeout - yielding\n",
1123 ldap_pvt_thread_yield();
1126 default: /* something happened - deal with it */
1127 if( slapd_shutdown ) continue;
1131 LDAP_LOG(( "connection", LDAP_LEVEL_DETAIL2,
1132 "slapd_daemon_task: activity on %d descriptors\n", ns ));
1134 Debug( LDAP_DEBUG_CONNS, "daemon: activity on %d descriptors\n",
1140 if( FD_ISSET( wake_sds[0], &readfds ) ) {
1142 tcp_read( wake_sds[0], c, sizeof(c) );
1149 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1151 socklen_t len = sizeof(from);
1154 char *authid = NULL;
1158 #ifdef LDAP_PF_LOCAL
1159 char peername[MAXPATHLEN + sizeof("PATH=")];
1160 #elif defined(LDAP_PF_INET6)
1161 char peername[sizeof("IP=ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff 65535")];
1163 char peername[sizeof("IP=255.255.255.255:65336")];
1164 #endif /* LDAP_PF_LOCAL */
1168 if ( slap_listeners[l]->sl_sd == AC_SOCKET_INVALID )
1171 if ( !FD_ISSET( slap_listeners[l]->sl_sd, &readfds ) )
1174 #ifdef LDAP_CONNECTIONLESS
1175 if ( slap_listeners[l]->sl_is_udp )
1177 /* The first time we receive a query, we set this
1178 * up as a "connection". It remains open for the life
1181 if ( slap_listeners[l]->sl_is_udp < 2 )
1183 id = connection_init(
1184 slap_listeners[l]->sl_sd,
1185 slap_listeners[l]->sl_url, "", "",
1186 slap_listeners[l]->sl_name,
1188 slap_listeners[l]->sl_is_udp++;
1194 s = accept( slap_listeners[l]->sl_sd,
1195 (struct sockaddr *) &from, &len );
1196 if ( s == AC_SOCKET_INVALID ) {
1197 int err = sock_errno();
1199 LDAP_LOG(( "connection", LDAP_LEVEL_ERR,
1200 "slapd_daemon_task: accept(%ld) failed errno=%d (%s)\n",
1201 (long)slap_listeners[l]->sl_sd, err, sock_errstr(err) ));
1203 Debug( LDAP_DEBUG_ANY,
1204 "daemon: accept(%ld) failed errno=%d (%s)\n",
1205 (long) slap_listeners[l]->sl_sd, err,
1208 ldap_pvt_thread_yield();
1212 #ifndef HAVE_WINSOCK
1213 /* make sure descriptor number isn't too great */
1214 if ( s >= dtblsize ) {
1216 LDAP_LOG(( "connection", LDAP_LEVEL_ERR,
1217 "slapd_daemon_task: %ld beyond descriptor table size %ld\n",
1218 (long)s, (long)dtblsize ));
1220 Debug( LDAP_DEBUG_ANY,
1221 "daemon: %ld beyond descriptor table size %ld\n",
1222 (long) s, (long) dtblsize, 0 );
1225 ldap_pvt_thread_yield();
1231 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
1233 /* newly accepted stream should not be in any of the FD SETS */
1234 assert( !FD_ISSET( s, &slap_daemon.sd_actives) );
1235 assert( !FD_ISSET( s, &slap_daemon.sd_readers) );
1236 assert( !FD_ISSET( s, &slap_daemon.sd_writers) );
1238 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
1241 #if defined( SO_KEEPALIVE ) || defined( TCP_NODELAY )
1242 #ifdef LDAP_PF_LOCAL
1243 /* for IPv4 and IPv6 sockets only */
1244 if ( from.sa_addr.sa_family != AF_LOCAL )
1245 #endif /* LDAP_PF_LOCAL */
1250 /* enable keep alives */
1252 rc = setsockopt( s, SOL_SOCKET, SO_KEEPALIVE,
1253 (char *) &tmp, sizeof(tmp) );
1254 if ( rc == AC_SOCKET_ERROR ) {
1255 int err = sock_errno();
1257 LDAP_LOG(( "connection", LDAP_LEVEL_ERR,
1258 "slapd_daemon_task: setsockopt( %ld, SO_KEEPALIVE) failed errno=%d (%s)\n",
1259 (long)s, err, sock_errstr(err) ));
1261 Debug( LDAP_DEBUG_ANY,
1262 "slapd(%ld): setsockopt(SO_KEEPALIVE) failed "
1263 "errno=%d (%s)\n", (long) s, err, sock_errstr(err) );
1268 /* enable no delay */
1270 rc = setsockopt( s, IPPROTO_TCP, TCP_NODELAY,
1271 (char *)&tmp, sizeof(tmp) );
1272 if ( rc == AC_SOCKET_ERROR ) {
1273 int err = sock_errno();
1275 LDAP_LOG(( "connection", LDAP_LEVEL_ERR,
1276 "slapd_daemon_task: setsockopt( %ld, TCP_NODELAY) failed errno=%d (%s)\n",
1277 (long)s, err, sock_errstr(err) ));
1279 Debug( LDAP_DEBUG_ANY,
1280 "slapd(%ld): setsockopt(TCP_NODELAY) failed "
1281 "errno=%d (%s)\n", (long) s, err, sock_errstr(err) );
1289 LDAP_LOG(( "connection", LDAP_LEVEL_DETAIL1,
1290 "slapd_daemon_task: new connection on %ld\n", (long)s ));
1292 Debug( LDAP_DEBUG_CONNS, "daemon: new connection on %ld\n",
1295 switch ( from.sa_addr.sa_family ) {
1296 # ifdef LDAP_PF_LOCAL
1298 sprintf( peername, "PATH=%s", from.sa_un_addr.sun_path );
1299 ssf = LDAP_PVT_SASL_LOCAL_SSF;
1301 #endif /* LDAP_PF_LOCAL */
1303 # ifdef LDAP_PF_INET6
1305 if ( IN6_IS_ADDR_V4MAPPED(&from.sa_in6_addr.sin6_addr) ) {
1306 peeraddr = inet_ntoa( *((struct in_addr *)
1307 &from.sa_in6_addr.sin6_addr.s6_addr[12]) );
1308 sprintf( peername, "IP=%s:%d",
1309 peeraddr != NULL ? peeraddr : "unknown",
1310 (unsigned) ntohs( from.sa_in6_addr.sin6_port ) );
1312 char addr[INET6_ADDRSTRLEN];
1313 sprintf( peername, "IP=%s %d",
1314 inet_ntop( AF_INET6,
1315 &from.sa_in6_addr.sin6_addr,
1316 addr, sizeof addr) ? addr : "unknown",
1317 (unsigned) ntohs( from.sa_in6_addr.sin6_port ) );
1320 # endif /* LDAP_PF_INET6 */
1323 peeraddr = inet_ntoa( from.sa_in_addr.sin_addr );
1324 sprintf( peername, "IP=%s:%d",
1325 peeraddr != NULL ? peeraddr : "unknown",
1326 (unsigned) ntohs( from.sa_in_addr.sin_port ) );
1334 if ( ( from.sa_addr.sa_family == AF_INET )
1335 #ifdef LDAP_PF_INET6
1336 || ( from.sa_addr.sa_family == AF_INET6 )
1339 #ifdef SLAPD_RLOOKUPS
1340 # ifdef LDAP_PF_INET6
1341 if ( from.sa_addr.sa_family == AF_INET6 )
1343 (char *)&(from.sa_in6_addr.sin6_addr),
1344 sizeof(from.sa_in6_addr.sin6_addr),
1347 # endif /* LDAP_PF_INET6 */
1349 (char *) &(from.sa_in_addr.sin_addr),
1350 sizeof(from.sa_in_addr.sin_addr),
1352 dnsname = hp ? ldap_pvt_str2lower( hp->h_name ) : NULL;
1355 #endif /* SLAPD_RLOOKUPS */
1358 if ( !hosts_ctl("slapd",
1359 dnsname != NULL ? dnsname : STRING_UNKNOWN,
1360 peeraddr != NULL ? peeraddr : STRING_UNKNOWN,
1364 Statslog( LDAP_DEBUG_ANY,
1365 "fd=%ld host access from %s (%s) denied.\n",
1367 dnsname != NULL ? dnsname : "unknown",
1368 peeraddr != NULL ? peeraddr : "unknown",
1373 #endif /* HAVE_TCPD */
1376 id = connection_init(s,
1377 slap_listeners[l]->sl_url,
1378 dnsname != NULL ? dnsname : "unknown",
1380 slap_listeners[l]->sl_name,
1382 slap_listeners[l]->sl_is_tls,
1389 if( authid ) ch_free(authid);
1393 LDAP_LOG(( "connection", LDAP_LEVEL_INFO,
1394 "slapd_daemon_task: connection_init(%ld, %s, %s) failed.\n",
1395 (long)s, peername, slap_listeners[l]->sl_name ));
1397 Debug( LDAP_DEBUG_ANY,
1398 "daemon: connection_init(%ld, %s, %s) failed.\n",
1401 slap_listeners[l]->sl_name );
1407 Statslog( LDAP_DEBUG_STATS,
1408 "daemon: conn=%ld fd=%ld connection from %s (%s) accepted.\n",
1411 slap_listeners[l]->sl_name,
1420 LDAP_LOG(( "connection", LDAP_LEVEL_DETAIL2,
1421 "slapd_daemon_task: activity on " ));
1423 Debug( LDAP_DEBUG_CONNS, "daemon: activity on:", 0, 0, 0 );
1426 for ( i = 0; i < readfds.fd_count; i++ ) {
1428 LDAP_LOG(( "connection", LDAP_LEVEL_DETAIL2,
1429 " %d%s", readfds.fd_array[i], "r", 0 ));
1431 Debug( LDAP_DEBUG_CONNS, " %d%s",
1432 readfds.fd_array[i], "r", 0 );
1435 for ( i = 0; i < writefds.fd_count; i++ ) {
1437 LDAP_LOG(( "connection", LDAP_LEVEL_DETAIL2,
1438 " %d%s", writefds.fd_array[i], "w" ));
1440 Debug( LDAP_DEBUG_CONNS, " %d%s",
1441 writefds.fd_array[i], "w", 0 );
1446 for ( i = 0; i < nfds; i++ ) {
1448 int is_listener = 0;
1450 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1451 if ( i == slap_listeners[l]->sl_sd ) {
1452 #ifdef LDAP_CONNECTIONLESS
1453 /* The listener is the data port. Don't
1456 if (slap_listeners[l]->sl_is_udp)
1463 if ( is_listener ) {
1466 r = FD_ISSET( i, &readfds );
1467 w = FD_ISSET( i, &writefds );
1470 LDAP_LOG(( "connection", LDAP_LEVEL_DETAIL2,
1472 r ? "r" : "", w ? "w" : "" ));
1474 Debug( LDAP_DEBUG_CONNS, " %d%s%s", i,
1475 r ? "r" : "", w ? "w" : "" );
1481 LDAP_LOG(( "connection", LDAP_LEVEL_DETAIL2, "\n" ));
1483 Debug( LDAP_DEBUG_CONNS, "\n", 0, 0, 0 );
1488 /* loop through the writers */
1490 for ( i = 0; i < writefds.fd_count; i++ )
1492 for ( i = 0; i < nfds; i++ )
1496 int is_listener = 0;
1498 wd = writefds.fd_array[i];
1500 if( ! FD_ISSET( i, &writefds ) ) {
1506 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1507 if ( i == slap_listeners[l]->sl_sd ) {
1508 #ifdef LDAP_CONNECTIONLESS
1509 if (slap_listeners[l]->sl_is_udp)
1516 if ( is_listener ) {
1520 LDAP_LOG(( "connection", LDAP_LEVEL_DETAIL2,
1521 "slapd_daemon_task: write active on %d\n", wd ));
1523 Debug( LDAP_DEBUG_CONNS,
1524 "daemon: write active on %d\n",
1528 * NOTE: it is possible that the connection was closed
1529 * and that the stream is now inactive.
1530 * connection_write() must valid the stream is still
1534 if ( connection_write( wd ) < 0 ) {
1535 FD_CLR( (unsigned) wd, &readfds );
1541 for ( i = 0; i < readfds.fd_count; i++ )
1543 for ( i = 0; i < nfds; i++ )
1547 int is_listener = 0;
1550 rd = readfds.fd_array[i];
1552 if( ! FD_ISSET( i, &readfds ) ) {
1558 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1559 if ( rd == slap_listeners[l]->sl_sd ) {
1560 #ifdef LDAP_CONNECTIONLESS
1561 if (slap_listeners[l]->sl_is_udp)
1568 if ( is_listener ) {
1573 LDAP_LOG(( "connection", LDAP_LEVEL_DETAIL2,
1574 "slapd_daemon_task: read activity on %d\n", rd ));
1576 Debug ( LDAP_DEBUG_CONNS,
1577 "daemon: read activity on %d\n", rd, 0, 0 );
1580 * NOTE: it is possible that the connection was closed
1581 * and that the stream is now inactive.
1582 * connection_read() must valid the stream is still
1586 if ( connection_read( rd ) < 0 ) {
1590 ldap_pvt_thread_yield();
1593 if( slapd_shutdown > 0 ) {
1595 LDAP_LOG(( "connection", LDAP_LEVEL_CRIT,
1596 "slapd_daemon_task: shutdown requested and initiated.\n"));
1598 Debug( LDAP_DEBUG_TRACE,
1599 "daemon: shutdown requested and initiated.\n",
1603 } else if ( slapd_shutdown < 0 ) {
1604 #ifdef HAVE_NT_SERVICE_MANAGER
1605 if (slapd_shutdown == -1)
1608 LDAP_LOG(( "connection", LDAP_LEVEL_CRIT,
1609 "slapd_daemon_task: shutdown initiated by Service Manager.\n"));
1611 Debug( LDAP_DEBUG_TRACE,
1612 "daemon: shutdown initiated by Service Manager.\n",
1620 LDAP_LOG(( "connection", LDAP_LEVEL_CRIT,
1621 "slapd_daemon_task: abnormal condition, shutdown initiated.\n" ));
1623 Debug( LDAP_DEBUG_TRACE,
1624 "daemon: abnormal condition, shutdown initiated.\n",
1630 LDAP_LOG(( "connection", LDAP_LEVEL_CRIT,
1631 "slapd_daemon_task: no active streams, shutdown initiated.\n" ));
1633 Debug( LDAP_DEBUG_TRACE,
1634 "daemon: no active streams, shutdown initiated.\n",
1639 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1640 if ( slap_listeners[l]->sl_sd != AC_SOCKET_INVALID ) {
1641 #ifdef LDAP_PF_LOCAL
1642 if ( slap_listeners[l]->sl_sa.sa_addr.sa_family == AF_LOCAL ) {
1643 unlink( slap_listeners[l]->sl_sa.sa_un_addr.sun_path );
1645 #endif /* LDAP_PF_LOCAL */
1646 slapd_close( slap_listeners[l]->sl_sd );
1652 LDAP_LOG(( "connection", LDAP_LEVEL_CRIT,
1653 "slapd_daemon_task: shutdown waiting for %d threads to terminate.\n",
1654 ldap_pvt_thread_pool_backload(&connection_pool) ));
1656 Debug( LDAP_DEBUG_ANY,
1657 "slapd shutdown: waiting for %d threads to terminate\n",
1658 ldap_pvt_thread_pool_backload(&connection_pool), 0, 0 );
1660 ldap_pvt_thread_pool_destroy(&connection_pool, 1);
1666 int slapd_daemon( void )
1672 #define SLAPD_LISTENER_THREAD 1
1673 #if defined( SLAPD_LISTENER_THREAD )
1675 ldap_pvt_thread_t listener_tid;
1677 /* listener as a separate THREAD */
1678 rc = ldap_pvt_thread_create( &listener_tid,
1679 0, slapd_daemon_task, NULL );
1683 LDAP_LOG(( "connection", LDAP_LEVEL_ERR,
1684 "slapd_daemon: listener ldap_pvt_thread_create failed (%d).\n", rc ));
1686 Debug( LDAP_DEBUG_ANY,
1687 "listener ldap_pvt_thread_create failed (%d)\n", rc, 0, 0 );
1692 /* wait for the listener thread to complete */
1693 ldap_pvt_thread_join( listener_tid, (void *) NULL );
1696 /* experimental code */
1697 slapd_daemon_task( NULL );
1706 #if defined( HAVE_WINSOCK2 )
1707 WORD wVersionRequested;
1711 wVersionRequested = MAKEWORD( 2, 0 );
1713 err = WSAStartup( wVersionRequested, &wsaData );
1715 /* Tell the user that we couldn't find a usable */
1720 /* Confirm that the WinSock DLL supports 2.0.*/
1721 /* Note that if the DLL supports versions greater */
1722 /* than 2.0 in addition to 2.0, it will still return */
1723 /* 2.0 in wVersion since that is the version we */
1726 if ( LOBYTE( wsaData.wVersion ) != 2 ||
1727 HIBYTE( wsaData.wVersion ) != 0 )
1729 /* Tell the user that we couldn't find a usable */
1735 /* The WinSock DLL is acceptable. Proceed. */
1736 #elif defined( HAVE_WINSOCK )
1738 if ( WSAStartup( 0x0101, &wsaData ) != 0 ) {
1745 int sockdestroy(void)
1747 #if defined( HAVE_WINSOCK2 ) || defined( HAVE_WINSOCK )
1754 slap_sig_shutdown( int sig )
1757 LDAP_LOG(( "connection", LDAP_LEVEL_CRIT,
1758 "slap_sig_shutdown: signal %d\n", sig ));
1760 Debug(LDAP_DEBUG_TRACE, "slap_sig_shutdown: signal %d\n", sig, 0, 0);
1764 * If the NT Service Manager is controlling the server, we don't
1765 * want SIGBREAK to kill the server. For some strange reason,
1766 * SIGBREAK is generated when a user logs out.
1769 #if HAVE_NT_SERVICE_MANAGER && SIGBREAK
1770 if (is_NT_Service && sig == SIGBREAK)
1772 LDAP_LOG(( "connection", LDAP_LEVEL_CRIT,
1773 "slap_sig_shutdown: SIGBREAK ignored.\n" ));
1775 Debug(LDAP_DEBUG_TRACE, "slap_sig_shutdown: SIGBREAK ignored.\n",
1780 slapd_shutdown = sig;
1784 /* reinstall self */
1785 (void) SIGNAL_REINSTALL( sig, slap_sig_shutdown );
1789 slap_sig_wake( int sig )
1793 /* reinstall self */
1794 (void) SIGNAL_REINSTALL( sig, slap_sig_wake );
1798 void slapd_add_internal(ber_socket_t s) {