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 union slap_sockaddr {
39 struct sockaddr sa_addr;
40 struct sockaddr_in sa_in_addr;
42 struct sockaddr_in6 sa_in6_addr;
45 struct sockaddr_un sa_un_addr;
49 typedef struct slap_listener {
57 #define sl_addr sl_sa.sa_in_addr
60 Listener **slap_listeners = NULL;
62 static ber_socket_t wake_sds[2];
66 #define WAKE_LISTENER(w) \
67 ((w && !waking) ? tcp_write( wake_sds[1], "0", 1 ), waking=1 : 0)
69 #define WAKE_LISTENER(w) \
70 do { if (w) tcp_write( wake_sds[1], "0", 1 ); } while(0)
73 #ifdef HAVE_NT_SERVICE_MANAGER
75 extern ldap_pvt_thread_cond_t started_event;
76 extern int is_NT_Service;
82 volatile sig_atomic_t slapd_shutdown = 0;
84 static ldap_pvt_thread_t listener_tid;
86 static struct slap_daemon {
87 ldap_pvt_thread_mutex_t sd_mutex;
92 /* In winsock, accept() returns values higher than dtblsize
93 so don't bother with this optimization */
103 * Add a descriptor to daemon control
105 static void slapd_add(ber_socket_t s) {
106 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
108 assert( !FD_ISSET( s, &slap_daemon.sd_actives ));
109 assert( !FD_ISSET( s, &slap_daemon.sd_readers ));
110 assert( !FD_ISSET( s, &slap_daemon.sd_writers ));
113 if (s >= slap_daemon.sd_nfds) {
114 slap_daemon.sd_nfds = s + 1;
118 FD_SET( s, &slap_daemon.sd_actives );
119 FD_SET( s, &slap_daemon.sd_readers );
121 Debug( LDAP_DEBUG_CONNS, "daemon: added %ld%s%s\n",
123 FD_ISSET(s, &slap_daemon.sd_readers) ? "r" : "",
124 FD_ISSET(s, &slap_daemon.sd_writers) ? "w" : "" );
126 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
130 * Remove the descriptor from daemon control
132 void slapd_remove(ber_socket_t s, int wake) {
133 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
135 Debug( LDAP_DEBUG_CONNS, "daemon: removing %ld%s%s\n",
137 FD_ISSET(s, &slap_daemon.sd_readers) ? "r" : "",
138 FD_ISSET(s, &slap_daemon.sd_writers) ? "w" : "" );
140 FD_CLR( s, &slap_daemon.sd_actives );
141 FD_CLR( s, &slap_daemon.sd_readers );
142 FD_CLR( s, &slap_daemon.sd_writers );
144 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
148 void slapd_clr_write(ber_socket_t s, int wake) {
149 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
151 assert( FD_ISSET( s, &slap_daemon.sd_actives) );
152 FD_CLR( s, &slap_daemon.sd_writers );
154 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
158 void slapd_set_write(ber_socket_t s, int wake) {
159 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
161 assert( FD_ISSET( s, &slap_daemon.sd_actives) );
162 if (!FD_ISSET(s, &slap_daemon.sd_writers))
163 FD_SET( (unsigned) s, &slap_daemon.sd_writers );
165 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
169 void slapd_clr_read(ber_socket_t s, int wake) {
170 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
172 assert( FD_ISSET( s, &slap_daemon.sd_actives) );
173 FD_CLR( s, &slap_daemon.sd_readers );
175 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
179 void slapd_set_read(ber_socket_t s, int wake) {
180 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
182 assert( FD_ISSET( s, &slap_daemon.sd_actives) );
183 if (!FD_ISSET(s, &slap_daemon.sd_readers))
184 FD_SET( s, &slap_daemon.sd_readers );
186 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
190 static void slapd_close(ber_socket_t s) {
191 Debug( LDAP_DEBUG_CONNS, "daemon: closing %ld\n",
197 static Listener * open_listener( const char* url )
205 #ifdef HAVE_GETADDRINFO
207 struct addrinfo hints, *res, *sai;
211 rc = ldap_url_parse( url, &lud );
213 if( rc != LDAP_URL_SUCCESS ) {
214 Debug( LDAP_DEBUG_ANY,
215 "daemon: listen URL \"%s\" parse error=%d\n",
221 if( ldap_pvt_url_scheme2tls( lud->lud_scheme ) ) {
222 Debug( LDAP_DEBUG_ANY,
223 "daemon: TLS not supported (%s)\n",
225 ldap_free_urldesc( lud );
229 if(! lud->lud_port ) {
230 lud->lud_port = LDAP_PORT;
234 l.sl_is_tls = ldap_pvt_url_scheme2tls( lud->lud_scheme );
236 if(! lud->lud_port ) {
237 lud->lud_port = l.sl_is_tls ? LDAPS_PORT : LDAP_PORT;
241 #ifdef HAVE_GETADDRINFO
242 memset( &hints, '\0', sizeof(hints) );
243 hints.ai_flags = AI_PASSIVE;
244 hints.ai_family = AF_UNSPEC;
245 hints.ai_socktype = SOCK_STREAM;
247 # ifdef LDAP_PF_LOCAL
248 if ( ldap_pvt_url_scheme2proto(lud->lud_scheme) == LDAP_PROTO_IPC ) {
249 if ( lud->lud_host == NULL || lud->lud_host[0] == '\0' ) {
250 err = getaddrinfo(NULL, LDAPI_SOCK, &hints, &res);
252 unlink( LDAPI_SOCK );
254 err = getaddrinfo(NULL, lud->lud_host, &hints, &res);
256 unlink( lud->lud_host );
259 # endif /* LDAP_PF_LOCAL */
261 snprintf(serv, sizeof serv, "%d", lud->lud_port);
262 if( lud->lud_host == NULL || lud->lud_host[0] == '\0'
263 || strcmp(lud->lud_host, "*") == 0 )
265 err = getaddrinfo(NULL, serv, &hints, &res);
267 err = getaddrinfo(lud->lud_host, serv, &hints, &res);
272 Debug( LDAP_DEBUG_ANY, "daemon: getaddrinfo failed\n", 0, 0, 0);
273 ldap_free_urldesc( lud );
277 ldap_free_urldesc( lud );
280 l.sl_sd = socket( sai->ai_family, sai->ai_socktype, sai->ai_protocol);
281 if ( l.sl_sd == AC_SOCKET_INVALID ) {
282 int err = sock_errno();
283 Debug( LDAP_DEBUG_ANY,
284 "daemon: socket() failed errno=%d (%s)\n", err,
285 sock_errstr(err), 0 );
289 if ( sai->ai_family != AF_LOCAL ) {
292 if ( ldap_pvt_url_scheme2proto(lud->lud_scheme) == LDAP_PROTO_IPC ) {
295 (void) memset( (void *)&l.sl_sa.sa_un_addr, '\0', sizeof(l.sl_sa.sa_un_addr) );
297 l.sl_sa.sa_un_addr.sun_family = AF_LOCAL;
299 /* hack: overload the host to be the path */
300 if ( lud->lud_host == NULL || lud->lud_host[0] == '\0' ) {
301 strcpy( l.sl_sa.sa_un_addr.sun_path, LDAPI_SOCK );
303 if ( strlen(lud->lud_host) > (sizeof(l.sl_sa.sa_un_addr.sun_path) - 1) ) {
304 Debug( LDAP_DEBUG_ANY,
305 "daemon: domain socket path (%s) too long in URL: %s",
306 lud->lud_host, url, 0);
307 ldap_free_urldesc( lud );
310 strcpy( l.sl_sa.sa_un_addr.sun_path, lud->lud_host );
312 unlink( l.sl_sa.sa_un_addr.sun_path );
314 /* I don't think we need to set this. */
315 l.sl_sa.sa_un_addr.sun_len = sizeof( l.sl_sa.sa_un_addr.sun_len ) +
316 sizeof( l.sl_sa.sa_un_addr.sun_family ) +
317 strlen( l.sl_sa.sa_un_addr.sun_path ) + 1;
320 Debug( LDAP_DEBUG_ANY, "daemon: URL scheme not supported: %s",
322 ldap_free_urldesc( lud );
324 #endif /* LDAP_PF_LOCAL */
327 port = lud->lud_port;
329 (void) memset( (void*) &l.sl_addr, '\0', sizeof(l.sl_addr) );
331 l.sl_addr.sin_family = AF_INET;
332 l.sl_addr.sin_port = htons( (unsigned short) lud->lud_port );
334 if( lud->lud_host == NULL || lud->lud_host[0] == '\0'
335 || strcmp(lud->lud_host, "*") == 0 )
337 l.sl_addr.sin_addr.s_addr = htonl(INADDR_ANY);
340 /* host or address was specified */
341 if( !inet_aton( lud->lud_host, &l.sl_addr.sin_addr ) ) {
342 struct hostent *he = gethostbyname( lud->lud_host );
344 Debug( LDAP_DEBUG_ANY,
345 "daemon: invalid host (%s) in URL: %s",
346 lud->lud_host, url, 0);
347 ldap_free_urldesc( lud );
351 memcpy( &l.sl_addr.sin_addr, he->h_addr,
352 sizeof( l.sl_addr.sin_addr ) );
357 ldap_free_urldesc( lud );
359 l.sl_sd = socket( l.sl_sa.sa_addr.sa_family, SOCK_STREAM, 0 );
360 if ( l.sl_sd == AC_SOCKET_INVALID ) {
361 int err = sock_errno();
362 Debug( LDAP_DEBUG_ANY,
363 "daemon: socket() failed errno=%d (%s)\n", err,
364 sock_errstr(err), 0 );
369 if ( l.sl_sd >= dtblsize ) {
370 Debug( LDAP_DEBUG_ANY,
371 "daemon: listener descriptor %ld is too great %ld\n",
372 (long) l.sl_sd, (long) dtblsize, 0 );
373 tcp_close( l.sl_sd );
379 /* for IP sockets only */
380 if ( l.sl_sa.sa_addr.sa_family == AF_INET ) {
381 #endif /* LDAP_PF_LOCAL */
382 #endif /* HAVE_GETADDRINFO */
385 /* enable address reuse */
387 rc = setsockopt( l.sl_sd, SOL_SOCKET, SO_REUSEADDR,
388 (char *) &tmp, sizeof(tmp) );
389 if ( rc == AC_SOCKET_ERROR ) {
390 int err = sock_errno();
391 Debug( LDAP_DEBUG_ANY,
392 "slapd(%ld): setsockopt(SO_REUSEADDR) failed errno=%d (%s)\n",
393 (long) l.sl_sd, err, sock_errstr(err) );
397 /* enable keep alives */
399 rc = setsockopt( l.sl_sd, SOL_SOCKET, SO_KEEPALIVE,
400 (char *) &tmp, sizeof(tmp) );
401 if ( rc == AC_SOCKET_ERROR ) {
402 int err = sock_errno();
403 Debug( LDAP_DEBUG_ANY,
404 "slapd(%ld): setsockopt(SO_KEEPALIVE) failed errno=%d (%s)\n",
405 (long) l.sl_sd, err, sock_errstr(err) );
409 /* enable no delay */
411 rc = setsockopt( l.sl_sd, IPPROTO_TCP, TCP_NODELAY,
412 (char *)&tmp, sizeof(tmp) );
413 if ( rc == AC_SOCKET_ERROR ) {
414 int err = sock_errno();
415 Debug( LDAP_DEBUG_ANY,
416 "slapd(%ld): setsockopt(TCP_NODELAY) failed errno=%d (%s)\n",
417 (long) l.sl_sd, err, sock_errstr(err) );
421 #ifdef HAVE_GETADDRINFO
422 } /* sai->ai_family != AF_LOCAL */
423 if (!bind(l.sl_sd, sai->ai_addr, sai->ai_addrlen))
426 Debug( LDAP_DEBUG_ANY, "daemon: bind(%ld) failed errno=%d (%s)\n",
427 (long) l.sl_sd, err, sock_errstr(err) );
428 tcp_close( l.sl_sd );
429 } while ((sai = sai->ai_next) != NULL);
432 Debug( LDAP_DEBUG_ANY, "daemon: bind(%ld) failed\n",
433 (long) l.sl_sd, 0, 0 );
437 switch ( sai->ai_family ) {
438 # ifdef LDAP_PF_LOCAL
440 if ( chmod( (char *)sai->ai_addr, S_IRWXU ) < 0 ) {
441 int err = sock_errno();
442 Debug( LDAP_DEBUG_ANY, "daemon: fchmod(%ld) failed errno=%d (%s)",
443 (long) l.sl_sd, err, sock_errstr(err) );
444 tcp_close( l.sl_sd );
447 l.sl_name = ch_malloc( strlen((char *)sai->ai_addr) + sizeof("PATH=") );
448 sprintf( l.sl_name, "PATH=%s", sai->ai_addr );
450 # endif /* LDAP_PF_LOCAL */
453 char addr[INET_ADDRSTRLEN];
455 &((struct sockaddr_in *)sai->ai_addr)->sin_addr,
456 addr, sizeof(addr) );
457 l.sl_name = ch_malloc( strlen(addr) + strlen(serv) + sizeof("IP=:") );
458 sprintf( l.sl_name, "IP=%s:%s", addr, serv );
461 # ifdef LDAP_PF_INET6
463 char addr[INET6_ADDRSTRLEN];
465 &((struct sockaddr_in6 *)sai->ai_addr)->sin6_addr,
467 l.sl_name = ch_malloc( strlen(addr) + strlen(serv) + sizeof("IP= ") );
468 sprintf( l.sl_name, "IP=%s %s", addr, serv );
470 # endif /* LDAP_PF_INET6 */
473 Debug( LDAP_DEBUG_ANY, "daemon: unsupported address family (%d)\n",
474 (int) sai->ai_family, 0, 0 );
479 /* close conditional */
481 #endif /* LDAP_PF_LOCAL */
483 switch ( l.sl_sa.sa_addr.sa_family ) {
486 rc = bind( l.sl_sd, (struct sockaddr *)&l.sl_sa,
487 sizeof(l.sl_sa.sa_un_addr) );
492 rc = bind( l.sl_sd, (struct sockaddr *)&l.sl_sa,
493 sizeof(l.sl_sa.sa_in_addr) );
497 rc = AC_SOCKET_ERROR;
502 if ( rc == AC_SOCKET_ERROR ) {
503 int err = sock_errno();
504 Debug( LDAP_DEBUG_ANY, "daemon: bind(%ld) failed errno=%d (%s)\n",
505 (long) l.sl_sd, err, sock_errstr(err) );
506 tcp_close( l.sl_sd );
510 switch ( l.sl_sa.sa_addr.sa_family ) {
513 if ( chmod( l.sl_sa.sa_un_addr.sun_path, S_IRWXU ) < 0 ) {
514 int err = sock_errno();
515 Debug( LDAP_DEBUG_ANY,
516 "daemon: chmod(%ld) failed errno=%d (%s)",
517 (long) l.sl_sd, err, sock_errstr(err) );
518 tcp_close( l.sl_sd );
522 l.sl_name = ch_malloc( strlen(l.sl_sa.sa_un_addr.sun_path)
524 sprintf( l.sl_name, "PATH=%s", l.sl_sa.sa_un_addr.sun_path );
526 #endif /* LDAP_PF_LOCAL */
529 l.sl_name = ch_malloc( sizeof("IP=255.255.255.255:65336") );
530 s = inet_ntoa( l.sl_addr.sin_addr );
531 sprintf( l.sl_name, "IP=%s:%d",
532 s != NULL ? s : "unknown" , port );
536 l.sl_name = ch_strdup( "UNKNOWN" );
540 #endif /* HAVE_GETADDRINFO */
542 l.sl_url = ch_strdup( url );
543 li = ch_malloc( sizeof( Listener ) );
546 Debug( LDAP_DEBUG_TRACE, "daemon: initialized %s\n",
552 static int sockinit(void);
553 static int sockdestroy(void);
555 int slapd_daemon_init( const char *urls )
560 Debug( LDAP_DEBUG_ARGS, "daemon_init: %s\n",
561 urls ? urls : "<null>", 0, 0 );
563 if( (rc = sockinit()) != 0 ) {
568 dtblsize = sysconf( _SC_OPEN_MAX );
569 #elif HAVE_GETDTABLESIZE
570 dtblsize = getdtablesize();
572 dtblsize = FD_SETSIZE;
576 if(dtblsize > FD_SETSIZE) {
577 dtblsize = FD_SETSIZE;
579 #endif /* !FD_SETSIZE */
581 /* open a pipe (or something equivalent connected to itself).
582 * we write a byte on this fd whenever we catch a signal. The main
583 * loop will be select'ing on this socket, and will wake up when
586 if( (rc = lutil_pair( wake_sds )) < 0 ) {
587 Debug( LDAP_DEBUG_ANY,
588 "daemon: lutil_pair() failed rc=%d\n", rc, 0, 0 );
592 FD_ZERO( &slap_daemon.sd_readers );
593 FD_ZERO( &slap_daemon.sd_writers );
599 u = str2charray( urls, " " );
601 if( u == NULL || u[0] == NULL ) {
602 Debug( LDAP_DEBUG_ANY, "daemon_init: no urls (%s) provided.\n",
608 for( i=0; u[i] != NULL; i++ ) {
609 Debug( LDAP_DEBUG_TRACE, "daemon_init: listen on %s\n",
614 Debug( LDAP_DEBUG_ANY, "daemon_init: no listeners to open (%s)\n",
620 Debug( LDAP_DEBUG_TRACE, "daemon_init: %d listeners to open...\n",
623 slap_listeners = ch_malloc( (i+1)*sizeof(Listener *) );
625 for(i = 0; u[i] != NULL; i++ ) {
626 slap_listeners[i] = open_listener( u[i] );
628 if( slap_listeners[i] == NULL ) {
633 slap_listeners[i] = NULL;
635 Debug( LDAP_DEBUG_TRACE, "daemon_init: %d listeners opened\n",
639 ldap_pvt_thread_mutex_init( &slap_daemon.sd_mutex );
645 slapd_daemon_destroy(void)
647 connections_destroy();
648 tcp_close( wake_sds[1] );
649 tcp_close( wake_sds[0] );
661 time_t last_idle_check = slap_get_time();
664 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
665 if ( slap_listeners[l]->sl_sd == AC_SOCKET_INVALID )
668 if ( listen( slap_listeners[l]->sl_sd, 5 ) == -1 ) {
669 int err = sock_errno();
670 Debug( LDAP_DEBUG_ANY,
671 "daemon: listen(%s, 5) failed errno=%d (%s)\n",
672 slap_listeners[l]->sl_url, err,
677 slapd_add( slap_listeners[l]->sl_sd );
680 #ifdef HAVE_NT_SERVICE_MANAGER
681 if ( started_event != NULL ) {
682 ldap_pvt_thread_cond_signal( &started_event );
685 /* initialization complete. Here comes the loop. */
687 while ( !slapd_shutdown ) {
692 #define SLAPD_EBADF_LIMIT 10
695 #define SLAPD_IDLE_CHECK_LIMIT 4
696 time_t now = slap_get_time();
703 #if defined(SLAPD_RLOOKUPS)
709 if( global_idletimeout > 0 && difftime(
710 last_idle_check+global_idletimeout/SLAPD_IDLE_CHECK_LIMIT,
713 connections_timeout_idle(now);
716 FD_ZERO( &writefds );
722 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
724 #ifdef FD_SET_MANUAL_COPY
725 for( s = 0; s < nfds; s++ ) {
726 if(FD_ISSET( &slap_sd_readers, s )) {
727 FD_SET( s, &readfds );
729 if(FD_ISSET( &slap_sd_writers, s )) {
730 FD_SET( s, &writefds );
734 memcpy( &readfds, &slap_daemon.sd_readers, sizeof(fd_set) );
735 memcpy( &writefds, &slap_daemon.sd_writers, sizeof(fd_set) );
737 assert(!FD_ISSET(wake_sds[0], &readfds));
738 FD_SET( wake_sds[0], &readfds );
740 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
741 if ( slap_listeners[l]->sl_sd == AC_SOCKET_INVALID )
743 if (!FD_ISSET(slap_listeners[l]->sl_sd, &readfds))
744 FD_SET( slap_listeners[l]->sl_sd, &readfds );
748 nfds = slap_daemon.sd_nfds;
753 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
755 at = ldap_pvt_thread_pool_backload(&connection_pool);
757 #if defined( HAVE_YIELDING_SELECT ) || defined( NO_THREADS )
760 tvp = at ? &zero : NULL;
763 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
764 if ( slap_listeners[l]->sl_sd == AC_SOCKET_INVALID )
767 Debug( LDAP_DEBUG_CONNS,
768 "daemon: select: listen=%d active_threads=%d tvp=%s\n",
769 slap_listeners[l]->sl_sd, at,
770 tvp == NULL ? "NULL" : "zero" );
773 switch(ns = select( nfds, &readfds,
775 /* don't pass empty fd_set */
776 ( writefds.fd_count > 0 ? &writefds : NULL ),
782 case -1: { /* failure - try again */
783 int err = sock_errno();
787 || err == WSAENOTSOCK /* you'd think this would be EBADF */
790 if (++ebadf < SLAPD_EBADF_LIMIT)
795 Debug( LDAP_DEBUG_CONNS,
796 "daemon: select failed (%d): %s\n",
797 err, sock_errstr(err), 0 );
804 case 0: /* timeout - let threads run */
806 Debug( LDAP_DEBUG_CONNS, "daemon: select timeout - yielding\n",
808 ldap_pvt_thread_yield();
811 default: /* something happened - deal with it */
813 Debug( LDAP_DEBUG_CONNS, "daemon: activity on %d descriptors\n",
818 if( FD_ISSET( wake_sds[0], &readfds ) ) {
820 tcp_read( wake_sds[0], c, sizeof(c) );
827 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
829 socklen_t len = sizeof(from);
837 char peername[MAXPATHLEN + sizeof("PATH=")];
838 #elif defined(LDAP_PF_INET6)
839 char peername[sizeof("IP=ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff 65535")];
841 char peername[sizeof("IP=255.255.255.255:65336")];
842 #endif /* LDAP_PF_LOCAL */
846 if ( slap_listeners[l]->sl_sd == AC_SOCKET_INVALID )
849 if ( !FD_ISSET( slap_listeners[l]->sl_sd, &readfds ) )
852 if ( (s = accept( slap_listeners[l]->sl_sd,
853 (struct sockaddr *) &from, &len )) == AC_SOCKET_INVALID )
855 int err = sock_errno();
856 Debug( LDAP_DEBUG_ANY,
857 "daemon: accept(%ld) failed errno=%d (%s)\n",
858 (long) slap_listeners[l]->sl_sd, err,
864 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
866 /* newly accepted stream should not be in any of the FD SETS */
868 assert( !FD_ISSET( s, &slap_daemon.sd_actives) );
869 assert( !FD_ISSET( s, &slap_daemon.sd_readers) );
870 assert( !FD_ISSET( s, &slap_daemon.sd_writers) );
872 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
876 /* make sure descriptor number isn't too great */
877 if ( s >= dtblsize ) {
878 Debug( LDAP_DEBUG_ANY,
879 "daemon: %ld beyond descriptor table size %ld\n",
880 (long) s, (long) dtblsize, 0 );
886 Debug( LDAP_DEBUG_CONNS, "daemon: new connection on %ld\n",
891 if ( getpeername( s, (struct sockaddr *) &from, &len ) != 0 ) {
892 int err = sock_errno();
893 Debug( LDAP_DEBUG_ANY,
894 "daemon: getpeername( %ld ) failed: errno=%d (%s)\n",
895 (long) s, err, sock_errstr(err) );
900 switch ( from.sa_addr.sa_family ) {
901 # ifdef LDAP_PF_LOCAL
903 sprintf( peername, "PATH=%s", from.sa_un_addr.sun_path );
904 ssf = LDAP_PVT_SASL_LOCAL_SSF;
906 #endif /* LDAP_PF_LOCAL */
908 # ifdef LDAP_PF_INET6
910 char addr[INET6_ADDRSTRLEN];
911 sprintf( peername, "IP=%s %d",
913 &from.sa_in6_addr.sin6_addr,
914 addr, sizeof addr) ? addr : "unknown",
915 (unsigned) ntohs( from.sa_in6_addr.sin6_port ) );
917 # endif /* LDAP_PF_INET6 */
920 peeraddr = inet_ntoa( from.sa_in_addr.sin_addr );
921 sprintf( peername, "IP=%s:%d",
922 peeraddr != NULL ? peeraddr : "unknown",
923 (unsigned) ntohs( from.sa_in_addr.sin_port ) );
930 if ( ( from.sa_addr.sa_family == AF_INET )
932 || ( from.sa_addr.sa_family == AF_INET6 )
935 #ifdef SLAPD_RLOOKUPS
936 # ifdef LDAP_PF_INET6
937 if ( from.sa_addr.sa_family == AF_INET6 )
939 (char *)&(from.sa_in6_addr.sin6_addr),
940 sizeof(from.sa_in6_addr.sin6_addr),
943 # endif LDAP_PF_INET6
945 (char *) &(from.sa_in_addr.sin_addr),
946 sizeof(from.sa_in_addr.sin_addr),
948 dnsname = hp ? ldap_pvt_str2lower( hp->h_name ) : NULL;
951 #endif /* SLAPD_RLOOKUPS */
954 if ( !hosts_ctl("slapd",
955 dnsname != NULL ? dnsname : STRING_UNKNOWN,
956 peeraddr != NULL ? peeraddr : STRING_UNKNOWN,
960 Statslog( LDAP_DEBUG_ANY,
961 "fd=%ld connection from %s (%s) denied.\n",
963 dnsname != NULL ? dnsname : "unknown",
964 peeraddr != NULL ? peeraddr : "unknown",
969 #endif /* HAVE_TCPD */
972 id = connection_init(s,
973 slap_listeners[l]->sl_url,
974 dnsname != NULL ? dnsname : "unknown",
976 slap_listeners[l]->sl_name,
978 slap_listeners[l]->sl_is_tls,
985 if( authid ) ch_free(authid);
988 Debug( LDAP_DEBUG_ANY,
989 "daemon: connection_init(%ld, %s, %s) failed.\n",
992 slap_listeners[l]->sl_name );
997 Statslog( LDAP_DEBUG_STATS,
998 "daemon: conn=%ld fd=%ld connection from %s (%s) accepted.\n",
1001 slap_listeners[l]->sl_name,
1009 Debug( LDAP_DEBUG_CONNS, "daemon: activity on:", 0, 0, 0 );
1011 for ( i = 0; i < readfds.fd_count; i++ ) {
1012 Debug( LDAP_DEBUG_CONNS, " %d%s",
1013 readfds.fd_array[i], "r", 0 );
1015 for ( i = 0; i < writefds.fd_count; i++ ) {
1016 Debug( LDAP_DEBUG_CONNS, " %d%s",
1017 writefds.fd_array[i], "w", 0 );
1020 for ( i = 0; i < nfds; i++ ) {
1022 int is_listener = 0;
1024 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1025 if ( i == slap_listeners[l]->sl_sd ) {
1030 if ( is_listener ) {
1033 r = FD_ISSET( i, &readfds );
1034 w = FD_ISSET( i, &writefds );
1036 Debug( LDAP_DEBUG_CONNS, " %d%s%s", i,
1037 r ? "r" : "", w ? "w" : "" );
1041 Debug( LDAP_DEBUG_CONNS, "\n", 0, 0, 0 );
1044 /* loop through the writers */
1046 for ( i = 0; i < writefds.fd_count; i++ )
1048 for ( i = 0; i < nfds; i++ )
1052 int is_listener = 0;
1054 wd = writefds.fd_array[i];
1056 if( ! FD_ISSET( i, &writefds ) ) {
1062 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1063 if ( i == slap_listeners[l]->sl_sd ) {
1068 if ( is_listener ) {
1071 Debug( LDAP_DEBUG_CONNS,
1072 "daemon: write active on %d\n",
1076 * NOTE: it is possible that the connection was closed
1077 * and that the stream is now inactive.
1078 * connection_write() must valid the stream is still
1082 if ( connection_write( wd ) < 0 ) {
1083 FD_CLR( (unsigned) wd, &readfds );
1089 for ( i = 0; i < readfds.fd_count; i++ )
1091 for ( i = 0; i < nfds; i++ )
1095 int is_listener = 0;
1098 rd = readfds.fd_array[i];
1100 if( ! FD_ISSET( i, &readfds ) ) {
1106 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1107 if ( rd == slap_listeners[l]->sl_sd ) {
1112 if ( is_listener ) {
1116 Debug ( LDAP_DEBUG_CONNS,
1117 "daemon: read activity on %d\n", rd, 0, 0 );
1120 * NOTE: it is possible that the connection was closed
1121 * and that the stream is now inactive.
1122 * connection_read() must valid the stream is still
1126 if ( connection_read( rd ) < 0 ) {
1130 ldap_pvt_thread_yield();
1133 if( slapd_shutdown > 0 ) {
1134 Debug( LDAP_DEBUG_TRACE,
1135 "daemon: shutdown requested and initiated.\n",
1138 } else if ( slapd_shutdown < 0 ) {
1139 #ifdef HAVE_NT_SERVICE_MANAGER
1140 if (slapd_shutdown == -1)
1141 Debug( LDAP_DEBUG_TRACE,
1142 "daemon: shutdown initiated by Service Manager.\n",
1146 Debug( LDAP_DEBUG_TRACE,
1147 "daemon: abnormal condition, shutdown initiated.\n",
1150 Debug( LDAP_DEBUG_TRACE,
1151 "daemon: no active streams, shutdown initiated.\n",
1155 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1156 if ( slap_listeners[l]->sl_sd != AC_SOCKET_INVALID ) {
1157 #ifdef LDAP_PF_LOCAL
1158 if ( slap_listeners[l]->sl_sa.sa_addr.sa_family == AF_LOCAL ) {
1159 unlink( slap_listeners[l]->sl_sa.sa_un_addr.sun_path );
1161 #endif /* LDAP_PF_LOCAL */
1162 slapd_close( slap_listeners[l]->sl_sd );
1167 Debug( LDAP_DEBUG_ANY,
1168 "slapd shutdown: waiting for %d threads to terminate\n",
1169 ldap_pvt_thread_pool_backload(&connection_pool), 0, 0 );
1171 ldap_pvt_thread_pool_destroy(&connection_pool, 1);
1177 int slapd_daemon( void )
1183 #define SLAPD_LISTENER_THREAD 1
1184 #if defined( SLAPD_LISTENER_THREAD ) || !defined(HAVE_PTHREADS)
1186 /* listener as a separate THREAD */
1187 rc = ldap_pvt_thread_create( &listener_tid,
1188 0, slapd_daemon_task, NULL );
1191 Debug( LDAP_DEBUG_ANY,
1192 "listener ldap_pvt_thread_create failed (%d)\n", rc, 0, 0 );
1196 /* wait for the listener thread to complete */
1197 ldap_pvt_thread_join( listener_tid, (void *) NULL );
1199 /* expermimental code */
1200 listener_tid = pthread_self();
1201 slapd_daemon_task( NULL );
1208 #ifdef HAVE_WINSOCK2
1211 WORD wVersionRequested;
1215 wVersionRequested = MAKEWORD( 2, 0 );
1217 err = WSAStartup( wVersionRequested, &wsaData );
1219 /* Tell the user that we couldn't find a usable */
1224 /* Confirm that the WinSock DLL supports 2.0.*/
1225 /* Note that if the DLL supports versions greater */
1226 /* than 2.0 in addition to 2.0, it will still return */
1227 /* 2.0 in wVersion since that is the version we */
1230 if ( LOBYTE( wsaData.wVersion ) != 2 ||
1231 HIBYTE( wsaData.wVersion ) != 0 )
1233 /* Tell the user that we couldn't find a usable */
1239 /* The WinSock DLL is acceptable. Proceed. */
1243 int sockdestroy(void)
1250 static int sockinit(void)
1253 if ( WSAStartup( 0x0101, &wsaData ) != 0 ) {
1258 static int sockdestroy(void)
1265 static int sockinit(void)
1269 static int sockdestroy(void)
1276 slap_sig_shutdown( int sig )
1278 Debug(LDAP_DEBUG_TRACE, "slap_sig_shutdown: signal %d\n", sig, 0, 0);
1281 * If the NT Service Manager is controlling the server, we don't
1282 * want SIGBREAK to kill the server. For some strange reason,
1283 * SIGBREAK is generated when a user logs out.
1286 #if HAVE_NT_SERVICE_MANAGER && SIGBREAK
1287 if (is_NT_Service && sig == SIGBREAK)
1288 Debug(LDAP_DEBUG_TRACE, "slap_sig_shutdown: SIGBREAK ignored.\n",
1292 slapd_shutdown = sig;
1296 /* reinstall self */
1297 (void) SIGNAL( sig, slap_sig_shutdown );
1301 slap_sig_wake( int sig )
1305 /* reinstall self */
1306 (void) SIGNAL( sig, slap_sig_wake );