2 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
4 * Copyright 1998-2005 The OpenLDAP Foundation.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted only as authorized by the OpenLDAP
11 * A copy of this license is available in the file LICENSE in the
12 * top-level directory of the distribution or, alternatively, at
13 * <http://www.OpenLDAP.org/license.html>.
15 /* Portions Copyright (c) 1995 Regents of the University of Michigan.
16 * All rights reserved.
18 * Redistribution and use in source and binary forms are permitted
19 * provided that this notice is preserved and that due credit is given
20 * to the University of Michigan at Ann Arbor. The name of the University
21 * may not be used to endorse or promote products derived from this
22 * software without specific prior written permission. This software
23 * is provided ``as is'' without express or implied warranty.
32 #include <ac/socket.h>
33 #include <ac/string.h>
35 #include <ac/unistd.h>
38 #include "ldap_pvt_thread.h"
45 #if defined(HAVE_SYS_EPOLL_H) && defined(HAVE_EPOLL)
46 #include <sys/epoll.h>
51 #define SLAP_STRING_UNKNOWN STRING_UNKNOWN
53 int allow_severity = LOG_INFO;
54 int deny_severity = LOG_NOTICE;
55 #else /* ! TCP Wrappers */
56 #define SLAP_STRING_UNKNOWN "unknown"
57 #endif /* ! TCP Wrappers */
61 /* this should go in <ldap.h> as soon as it is accepted */
62 #define LDAPI_MOD_URLEXT "x-mod"
63 #endif /* LDAP_PF_LOCAL */
66 int slap_inet4or6 = AF_UNSPEC;
68 int slap_inet4or6 = AF_INET;
73 ber_socket_t dtblsize;
74 slap_ssf_t local_ssf = LDAP_PVT_SASL_LOCAL_SSF;
75 struct runqueue_s slapd_rq;
77 Listener **slap_listeners = NULL;
79 #define SLAPD_LISTEN 10
81 static ber_socket_t wake_sds[2];
85 #define WAKE_LISTENER(w) \
86 do { if (w && waking < 5) { waking++; tcp_write( wake_sds[1], "0", 1 ); } } while(0)
88 volatile sig_atomic_t slapd_shutdown = 0, slapd_gentle_shutdown = 0;
89 volatile sig_atomic_t slapd_abrupt_shutdown = 0;
91 static struct slap_daemon {
92 ldap_pvt_thread_mutex_t sd_mutex;
94 ber_socket_t sd_nactives;
98 struct epoll_event *sd_epolls;
106 /* In winsock, accept() returns values higher than dtblsize
107 so don't bother with this optimization */
118 #define SLAP_EVENTS_ARE_INDEXED 0
119 #define SLAP_SOCK_IX(s) (slap_daemon.sd_index[s])
120 #define SLAP_SOCK_EP(s) (slap_daemon.sd_epolls[SLAP_SOCK_IX(s)])
121 #define SLAP_SOCK_EV(s) (SLAP_SOCK_EP(s).events)
122 #define SLAP_SOCK_IS_ACTIVE(s) (SLAP_SOCK_IX(s) != -1)
123 #define SLAP_SOCK_NOT_ACTIVE(s) (SLAP_SOCK_IX(s) == -1)
124 #define SLAP_SOCK_IS_SET(s, mode) (SLAP_SOCK_EV(s) & mode)
126 #define SLAP_SOCK_IS_READ(s) SLAP_SOCK_IS_SET(s, EPOLLIN)
127 #define SLAP_SOCK_IS_WRITE(s) SLAP_SOCK_IS_SET(s, EPOLLOUT)
129 #define SLAP_SET_SOCK(s, mode) do { \
130 if ((SLAP_SOCK_EV(s) & mode) != mode) { \
131 SLAP_SOCK_EV(s) |= mode; \
132 epoll_ctl(slap_daemon.sd_epfd, EPOLL_CTL_MOD, s, \
137 #define SLAP_CLR_SOCK(s, mode) do { \
138 if ((SLAP_SOCK_EV(s) & mode)) { \
139 SLAP_SOCK_EV(s) &= ~mode; \
140 epoll_ctl(slap_daemon.sd_epfd, EPOLL_CTL_MOD, s, \
145 #define SLAP_SOCK_SET_READ(s) SLAP_SET_SOCK(s, EPOLLIN)
146 #define SLAP_SOCK_SET_WRITE(s) SLAP_SET_SOCK(s, EPOLLOUT)
148 #define SLAP_SOCK_CLR_READ(s) SLAP_CLR_SOCK(s, EPOLLIN)
149 #define SLAP_SOCK_CLR_WRITE(s) SLAP_CLR_SOCK(s, EPOLLOUT)
151 #define SLAP_CLR_EVENT(i, mode) (revents[i].events &= ~mode)
154 #define SLAP_EVENT_MAX slap_daemon.sd_nfds
156 /* If a Listener address is provided, store that as the epoll data.
157 * Otherwise, store the address of this socket's slot in the
158 * index array. If we can't do this add, the system is out of
159 * resources and we need to shutdown.
161 #define SLAP_ADD_SOCK(s, l) do { \
163 SLAP_SOCK_IX(s) = slap_daemon.sd_nfds; \
164 SLAP_SOCK_EP(s).data.ptr = (l) ? (l) : (void *)(&SLAP_SOCK_IX(s)); \
165 SLAP_SOCK_EV(s) = EPOLLIN; \
166 rc = epoll_ctl(slap_daemon.sd_epfd, EPOLL_CTL_ADD, s, \
168 if ( rc == 0 ) slap_daemon.sd_nfds++; \
170 Debug( LDAP_DEBUG_ANY, "daemon: epoll_ctl ADD failed, errno %d, shutting down\n", \
172 slapd_shutdown = 2; \
176 #define SLAP_EV_LISTENER(ptr) (((int *)(ptr) >= slap_daemon.sd_index && \
177 (int *)(ptr) <= (slap_daemon.sd_index+dtblsize)) ? 0 : 1)
179 #define SLAP_EV_PTRFD(ptr) (SLAP_EV_LISTENER(ptr) ? \
180 ((Listener *)ptr)->sl_sd : (int *)(ptr) - slap_daemon.sd_index)
182 #define SLAP_DEL_SOCK(s) do { \
183 int fd, rc, index = SLAP_SOCK_IX(s); \
184 rc = epoll_ctl(slap_daemon.sd_epfd, EPOLL_CTL_DEL, s, \
186 slap_daemon.sd_epolls[index] = slap_daemon.sd_epolls[slap_daemon.sd_nfds-1]; \
187 fd = SLAP_EV_PTRFD(slap_daemon.sd_epolls[index].data.ptr); \
188 slap_daemon.sd_index[fd] = index; \
189 slap_daemon.sd_index[s] = -1; \
190 slap_daemon.sd_nfds--; \
193 #define SLAP_EVENT_CLR_READ(i) SLAP_CLR_EVENT(i, EPOLLIN)
194 #define SLAP_EVENT_CLR_WRITE(i) SLAP_CLR_EVENT(i, EPOLLOUT)
196 #define SLAP_CHK_EVENT(i, mode) (revents[i].events & mode)
198 #define SLAP_EVENT_IS_READ(i) SLAP_CHK_EVENT(i, EPOLLIN)
199 #define SLAP_EVENT_IS_WRITE(i) SLAP_CHK_EVENT(i, EPOLLOUT)
200 #define SLAP_EVENT_IS_LISTENER(i) SLAP_EV_LISTENER(revents[i].data.ptr)
201 #define SLAP_EVENT_LISTENER(i) (revents[i].data.ptr)
203 #define SLAP_EVENT_FD(i) SLAP_EV_PTRFD(revents[i].data.ptr)
204 #define SLAP_SOCK_SET_MUTE(s) SLAP_SOCK_CLR_READ(s)
205 #define SLAP_SOCK_CLR_MUTE(s) SLAP_SOCK_SET_READ(s)
206 #define SLAP_SOCK_IS_MUTE(s) !SLAP_SOCK_IS_READ(s)
208 #define SLAP_SOCK_SET_INIT \
209 slap_daemon.sd_epolls = ch_malloc(sizeof(struct epoll_event) * dtblsize * 2); \
210 slap_daemon.sd_index = ch_malloc(sizeof(int) * dtblsize); \
211 slap_daemon.sd_epfd = epoll_create( dtblsize ); \
212 for (i=0; i<dtblsize; i++) slap_daemon.sd_index[i] = -1
215 #define SLAP_EVENT_DECL \
216 struct epoll_event *revents
218 #define SLAP_EVENT_INIT \
219 revents = slap_daemon.sd_epolls + dtblsize; \
221 #define SLAP_EVENT_WAIT(tvp) \
222 epoll_wait( slap_daemon.sd_epfd, revents, dtblsize, tvp ? tvp->tv_sec * 1000 : -1 )
227 #define SLAP_EVENTS_ARE_INDEXED 1
228 #define SLAP_EVENT_DECL \
229 fd_set readfds, writefds
231 #define SLAP_EVENT_INIT \
232 AC_MEMCPY( &readfds, &slap_daemon.sd_readers, sizeof(fd_set) ); \
234 AC_MEMCPY( &writefds, &slap_daemon.sd_writers, sizeof(fd_set) )
237 #define CHK_SETSIZE \
238 if (dtblsize > FD_SETSIZE) dtblsize = FD_SETSIZE
243 #define SLAP_SOCK_SET_INIT \
245 FD_ZERO(&slap_daemon.sd_readers); \
246 FD_ZERO(&slap_daemon.sd_writers)
248 #define SLAP_SOCK_IS_ACTIVE(fd) FD_ISSET(fd, &slap_daemon.sd_actives)
250 #define SLAP_SOCK_IS_READ(fd) FD_ISSET(fd, &slap_daemon.sd_readers)
251 #define SLAP_SOCK_IS_WRITE(fd) FD_ISSET(fd, &slap_daemon.sd_writers)
253 #define SLAP_SOCK_NOT_ACTIVE(fd) (!SLAP_SOCK_IS_ACTIVE(fd) && \
254 !SLAP_SOCK_IS_READ(fd) && !SLAP_SOCK_IS_WRITE(fd))
257 #define SLAP_SOCK_SET_READ(fd) do { \
258 if (!SLAP_SOCK_IS_READ(fd)) {FD_SET(fd, &slap_daemon.sd_readers);} \
260 #define SLAP_SOCK_SET_WRITE(fd) do { \
261 if (!SLAP_SOCK_IS_WRITE(fd)) {FD_SET(fd, &slap_daemon.sd_writers);} \
264 #define SLAP_ADDTEST(s)
265 #define SLAP_EVENT_MAX dtblsize
267 #define SLAP_SOCK_SET_READ(fd) FD_SET(fd, &slap_daemon.sd_readers)
268 #define SLAP_SOCK_SET_WRITE(fd) FD_SET(fd, &slap_daemon.sd_writers)
270 #define SLAP_EVENT_MAX slap_daemon.sd_nfds
271 #define SLAP_ADDTEST(s) if (s >= slap_daemon.sd_nfds) slap_daemon.sd_nfds = s+1
274 #define SLAP_SOCK_CLR_READ(fd) FD_CLR(fd, &slap_daemon.sd_readers)
275 #define SLAP_SOCK_CLR_WRITE(fd) FD_CLR(fd, &slap_daemon.sd_writers)
277 #define SLAP_ADD_SOCK(s, l) do { \
279 FD_SET(s, &slap_daemon.sd_actives); \
280 FD_SET(s, &slap_daemon.sd_readers); \
283 #define SLAP_DEL_SOCK(s) do { \
284 FD_CLR(s, &slap_daemon.sd_actives); \
285 FD_CLR(s, &slap_daemon.sd_readers); \
286 FD_CLR(s, &slap_daemon.sd_writers); \
289 #define SLAP_EVENT_IS_READ(fd) FD_ISSET(fd, &readfds)
290 #define SLAP_EVENT_IS_WRITE(fd) FD_ISSET(fd, &writefds)
292 #define SLAP_EVENT_CLR_READ(fd) FD_CLR(fd, &readfds)
293 #define SLAP_EVENT_CLR_WRITE(fd) FD_CLR(fd, &writefds)
295 #define SLAP_EVENT_WAIT(tvp) \
296 select( SLAP_EVENT_MAX, &readfds, \
297 nwriters > 0 ? &writefds : NULL, NULL, tvp )
299 #define SLAP_SOCK_SET_MUTE(s) FD_CLR(s, &readfds)
300 #define SLAP_SOCK_CLR_MUTE(s) FD_SET(s, &readfds)
301 #define SLAP_SOCK_IS_MUTE(s) FD_ISSET(s, &readfds)
308 * SLP related functions
312 #define LDAP_SRVTYPE_PREFIX "service:ldap://"
313 #define LDAPS_SRVTYPE_PREFIX "service:ldaps://"
314 static char** slapd_srvurls = NULL;
315 static SLPHandle slapd_hslp = 0;
316 int slapd_register_slp = 0;
318 void slapd_slp_init( const char* urls ) {
321 slapd_srvurls = ldap_str2charray( urls, " " );
323 if( slapd_srvurls == NULL ) return;
325 /* find and expand INADDR_ANY URLs */
326 for( i=0; slapd_srvurls[i] != NULL; i++ ) {
327 if( strcmp( slapd_srvurls[i], "ldap:///" ) == 0) {
328 char *host = ldap_pvt_get_fqdn( NULL );
329 if ( host != NULL ) {
330 slapd_srvurls[i] = (char *) ch_realloc( slapd_srvurls[i],
332 sizeof( LDAP_SRVTYPE_PREFIX ) );
333 strcpy( lutil_strcopy(slapd_srvurls[i],
334 LDAP_SRVTYPE_PREFIX ), host );
339 } else if ( strcmp( slapd_srvurls[i], "ldaps:///" ) == 0) {
340 char *host = ldap_pvt_get_fqdn( NULL );
341 if ( host != NULL ) {
342 slapd_srvurls[i] = (char *) ch_realloc( slapd_srvurls[i],
344 sizeof( LDAPS_SRVTYPE_PREFIX ) );
345 strcpy( lutil_strcopy(slapd_srvurls[i],
346 LDAPS_SRVTYPE_PREFIX ), host );
353 /* open the SLP handle */
354 SLPOpen( "en", 0, &slapd_hslp );
357 void slapd_slp_deinit() {
358 if( slapd_srvurls == NULL ) return;
360 ldap_charray_free( slapd_srvurls );
361 slapd_srvurls = NULL;
363 /* close the SLP handle */
364 SLPClose( slapd_hslp );
367 void slapd_slp_regreport(
375 void slapd_slp_reg() {
378 if( slapd_srvurls == NULL ) return;
380 for( i=0; slapd_srvurls[i] != NULL; i++ ) {
381 if( strncmp( slapd_srvurls[i], LDAP_SRVTYPE_PREFIX,
382 sizeof( LDAP_SRVTYPE_PREFIX ) - 1 ) == 0 ||
383 strncmp( slapd_srvurls[i], LDAPS_SRVTYPE_PREFIX,
384 sizeof( LDAPS_SRVTYPE_PREFIX ) - 1 ) == 0 )
388 SLP_LIFETIME_MAXIMUM,
398 void slapd_slp_dereg() {
401 if( slapd_srvurls == NULL ) return;
403 for( i=0; slapd_srvurls[i] != NULL; i++ ) {
404 SLPDereg( slapd_hslp,
410 #endif /* HAVE_SLP */
413 * Add a descriptor to daemon control
415 * If isactive, the descriptor is a live server session and is subject
416 * to idletimeout control. Otherwise, the descriptor is a passive
417 * listener or an outbound client session, and not subject to
418 * idletimeout. The underlying event handler may record the Listener
419 * argument to differentiate Listener's from real sessions.
421 static void slapd_add(ber_socket_t s, int isactive, Listener *sl) {
422 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
424 assert( SLAP_SOCK_NOT_ACTIVE(s) );
427 slap_daemon.sd_nactives++;
430 SLAP_ADD_SOCK(s, sl);
432 Debug( LDAP_DEBUG_CONNS, "daemon: added %ldr\n",
434 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
438 * Remove the descriptor from daemon control
440 void slapd_remove(ber_socket_t s, int wasactive, int wake) {
442 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
445 slap_daemon.sd_nactives--;
447 waswriter = SLAP_SOCK_IS_WRITE(s);
449 Debug( LDAP_DEBUG_CONNS, "daemon: removing %ld%s%s\n",
450 (long) s, SLAP_SOCK_IS_READ(s) ? "r" : "",
451 waswriter ? "w" : "" );
452 if ( waswriter ) slap_daemon.sd_nwriters--;
456 /* If we ran out of file descriptors, we dropped a listener from
457 * the select() loop. Now that we're removing a session from our
458 * control, we can try to resume a dropped listener to use.
462 for ( i = 0; slap_listeners[i] != NULL; i++ ) {
463 if ( slap_listeners[i]->sl_sd != AC_SOCKET_INVALID ) {
464 if ( slap_listeners[i]->sl_sd == s ) continue;
465 if ( slap_listeners[i]->sl_is_mute ) {
466 slap_listeners[i]->sl_is_mute = 0;
472 /* Walked the entire list without enabling anything; emfile
473 * counter is stale. Reset it.
475 if ( slap_listeners[i] == NULL )
478 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
479 WAKE_LISTENER(wake || slapd_gentle_shutdown == 2);
482 void slapd_clr_write(ber_socket_t s, int wake) {
483 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
485 assert( SLAP_SOCK_IS_ACTIVE( s ));
486 if ( SLAP_SOCK_IS_WRITE( s )) {
487 SLAP_SOCK_CLR_WRITE( s );
488 slap_daemon.sd_nwriters--;
491 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
495 void slapd_set_write(ber_socket_t s, int wake) {
496 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
498 assert( SLAP_SOCK_IS_ACTIVE( s ));
499 if ( !SLAP_SOCK_IS_WRITE( s )) {
500 SLAP_SOCK_SET_WRITE( s );
501 slap_daemon.sd_nwriters++;
504 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
508 void slapd_clr_read(ber_socket_t s, int wake) {
509 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
511 assert( SLAP_SOCK_IS_ACTIVE( s ));
512 SLAP_SOCK_CLR_READ( s );
514 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
518 void slapd_set_read(ber_socket_t s, int wake) {
519 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
521 assert( SLAP_SOCK_IS_ACTIVE( s ));
522 if (!SLAP_SOCK_IS_READ( s ))
523 SLAP_SOCK_SET_READ( s );
525 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
529 static void slapd_close(ber_socket_t s) {
530 Debug( LDAP_DEBUG_CONNS, "daemon: closing %ld\n",
535 static void slap_free_listener_addresses(struct sockaddr **sal)
537 struct sockaddr **sap;
543 for (sap = sal; *sap != NULL; sap++) {
550 #if defined(LDAP_PF_LOCAL) || defined(SLAP_X_LISTENER_MOD)
551 static int get_url_perms(
563 for ( i = 0; exts[ i ]; i++ ) {
564 char *type = exts[ i ];
567 if ( type[ 0 ] == '!' ) {
572 if ( strncasecmp( type, LDAPI_MOD_URLEXT "=", sizeof(LDAPI_MOD_URLEXT "=") - 1 ) == 0 ) {
574 + ( sizeof(LDAPI_MOD_URLEXT "=") - 1 );
578 switch (strlen(value)) {
580 /* skip leading '0' */
581 if ( value[ 0 ] != '0' ) {
587 for ( j = 0; j < 3; j++) {
590 v = value[ j ] - '0';
592 if ( v < 0 || v > 7 ) {
601 for ( j = 1; j < 10; j++ ) {
602 static mode_t m[] = { 0,
603 S_IRUSR, S_IWUSR, S_IXUSR,
604 S_IRGRP, S_IWGRP, S_IXGRP,
605 S_IROTH, S_IWOTH, S_IXOTH
607 static char c[] = "-rwxrwxrwx";
609 if ( value[ j ] == c[ j ] ) {
612 } else if ( value[ j ] != '-' ) {
631 #endif /* LDAP_PF_LOCAL || SLAP_X_LISTENER_MOD */
633 /* port = 0 indicates AF_LOCAL */
634 static int slap_get_listener_addresses(
637 struct sockaddr ***sal)
639 struct sockaddr **sap;
643 *sal = ch_malloc(2 * sizeof(void *));
649 *sap = ch_malloc(sizeof(struct sockaddr_un));
655 (sizeof(((struct sockaddr_un *)*sap)->sun_path) - 1) ) {
656 Debug( LDAP_DEBUG_ANY,
657 "daemon: domain socket path (%s) too long in URL",
662 (void)memset( (void *)*sap, '\0', sizeof(struct sockaddr_un) );
663 (*sap)->sa_family = AF_LOCAL;
664 strcpy( ((struct sockaddr_un *)*sap)->sun_path, host );
668 #ifdef HAVE_GETADDRINFO
669 struct addrinfo hints, *res, *sai;
673 memset( &hints, '\0', sizeof(hints) );
674 hints.ai_flags = AI_PASSIVE;
675 hints.ai_socktype = SOCK_STREAM;
676 hints.ai_family = slap_inet4or6;
677 snprintf(serv, sizeof serv, "%d", port);
679 if ( (err = getaddrinfo(host, serv, &hints, &res)) ) {
680 Debug( LDAP_DEBUG_ANY, "daemon: getaddrinfo failed: %s\n",
681 AC_GAI_STRERROR(err), 0, 0);
686 for (n=2; (sai = sai->ai_next) != NULL; n++) {
689 *sal = ch_calloc(n, sizeof(void *));
697 for ( sai=res; sai; sai=sai->ai_next ) {
698 if( sai->ai_addr == NULL ) {
699 Debug( LDAP_DEBUG_ANY, "slap_get_listener_addresses: "
700 "getaddrinfo ai_addr is NULL?\n", 0, 0, 0 );
705 switch (sai->ai_family) {
706 # ifdef LDAP_PF_INET6
708 *sap = ch_malloc(sizeof(struct sockaddr_in6));
713 *(struct sockaddr_in6 *)*sap =
714 *((struct sockaddr_in6 *)sai->ai_addr);
718 *sap = ch_malloc(sizeof(struct sockaddr_in));
723 *(struct sockaddr_in *)*sap =
724 *((struct sockaddr_in *)sai->ai_addr);
732 (*sap)->sa_family = sai->ai_family;
742 struct hostent *he = NULL;
744 if ( host == NULL ) {
745 in.s_addr = htonl(INADDR_ANY);
747 } else if ( !inet_aton( host, &in ) ) {
748 he = gethostbyname( host );
750 Debug( LDAP_DEBUG_ANY,
751 "daemon: invalid host %s", host, 0, 0);
754 for (n = 0; he->h_addr_list[n]; n++) ;
757 *sal = ch_malloc((n+1) * sizeof(void *));
763 for ( i = 0; i<n; i++ ) {
764 sap[i] = ch_malloc(sizeof(struct sockaddr_in));
768 (void)memset( (void *)sap[i], '\0', sizeof(struct sockaddr_in) );
769 sap[i]->sa_family = AF_INET;
770 ((struct sockaddr_in *)sap[i])->sin_port = htons(port);
772 AC_MEMCPY( &((struct sockaddr_in *)sap[i])->sin_addr, he->h_addr_list[i], sizeof(struct in_addr) );
774 AC_MEMCPY( &((struct sockaddr_in *)sap[i])->sin_addr, &in, sizeof(struct in_addr) );
784 slap_free_listener_addresses(*sal);
788 static int slap_open_listener(
799 int err, addrlen = 0;
800 struct sockaddr **sal, **psal;
801 int socktype = SOCK_STREAM; /* default to COTS */
803 #if defined(LDAP_PF_LOCAL) || defined(SLAP_X_LISTENER_MOD)
808 #endif /* LDAP_PF_LOCAL || SLAP_X_LISTENER_MOD */
810 rc = ldap_url_parse( url, &lud );
812 if( rc != LDAP_URL_SUCCESS ) {
813 Debug( LDAP_DEBUG_ANY,
814 "daemon: listen URL \"%s\" parse error=%d\n",
819 l.sl_url.bv_val = NULL;
823 if( ldap_pvt_url_scheme2tls( lud->lud_scheme ) ) {
824 Debug( LDAP_DEBUG_ANY,
825 "daemon: TLS not supported (%s)\n",
827 ldap_free_urldesc( lud );
831 if(! lud->lud_port ) {
832 lud->lud_port = LDAP_PORT;
836 l.sl_is_tls = ldap_pvt_url_scheme2tls( lud->lud_scheme );
838 if(! lud->lud_port ) {
839 lud->lud_port = l.sl_is_tls ? LDAPS_PORT : LDAP_PORT;
843 port = (unsigned short) lud->lud_port;
845 tmp = ldap_pvt_url_scheme2proto(lud->lud_scheme);
846 if ( tmp == LDAP_PROTO_IPC ) {
848 if ( lud->lud_host == NULL || lud->lud_host[0] == '\0' ) {
849 err = slap_get_listener_addresses(LDAPI_SOCK, 0, &sal);
851 err = slap_get_listener_addresses(lud->lud_host, 0, &sal);
855 Debug( LDAP_DEBUG_ANY, "daemon: URL scheme not supported: %s",
857 ldap_free_urldesc( lud );
861 if( lud->lud_host == NULL || lud->lud_host[0] == '\0'
862 || strcmp(lud->lud_host, "*") == 0 )
864 err = slap_get_listener_addresses(NULL, port, &sal);
866 err = slap_get_listener_addresses(lud->lud_host, port, &sal);
869 #ifdef LDAP_CONNECTIONLESS
870 l.sl_is_udp = ( tmp == LDAP_PROTO_UDP );
873 #if defined(LDAP_PF_LOCAL) || defined(SLAP_X_LISTENER_MOD)
874 if ( lud->lud_exts ) {
875 err = get_url_perms( lud->lud_exts, &l.sl_perms, &crit );
877 l.sl_perms = S_IRWXU | S_IRWXO;
879 #endif /* LDAP_PF_LOCAL || SLAP_X_LISTENER_MOD */
881 ldap_free_urldesc( lud );
886 /* If we got more than one address returned, we need to make space
887 * for it in the slap_listeners array.
889 for ( num=0; sal[num]; num++ );
892 slap_listeners = ch_realloc( slap_listeners, (*listeners + 1) * sizeof(Listener *) );
896 while ( *sal != NULL ) {
898 switch( (*sal)->sa_family ) {
916 #ifdef LDAP_CONNECTIONLESS
917 if( l.sl_is_udp ) socktype = SOCK_DGRAM;
919 l.sl_sd = socket( (*sal)->sa_family, socktype, 0);
920 if ( l.sl_sd == AC_SOCKET_INVALID ) {
921 int err = sock_errno();
922 Debug( LDAP_DEBUG_ANY,
923 "daemon: %s socket() failed errno=%d (%s)\n",
924 af, err, sock_errstr(err) );
929 if ( l.sl_sd >= dtblsize ) {
930 Debug( LDAP_DEBUG_ANY,
931 "daemon: listener descriptor %ld is too great %ld\n",
932 (long) l.sl_sd, (long) dtblsize, 0 );
933 tcp_close( l.sl_sd );
939 if ( (*sal)->sa_family == AF_LOCAL ) {
940 unlink ( ((struct sockaddr_un *)*sal)->sun_path );
945 /* enable address reuse */
947 rc = setsockopt( l.sl_sd, SOL_SOCKET, SO_REUSEADDR,
948 (char *) &tmp, sizeof(tmp) );
949 if ( rc == AC_SOCKET_ERROR ) {
950 int err = sock_errno();
951 Debug( LDAP_DEBUG_ANY,
952 "slapd(%ld): setsockopt(SO_REUSEADDR) failed errno=%d (%s)\n",
953 (long) l.sl_sd, err, sock_errstr(err) );
958 switch( (*sal)->sa_family ) {
960 addrlen = sizeof(struct sockaddr_in);
965 /* Try to use IPv6 sockets for IPv6 only */
967 rc = setsockopt( l.sl_sd, IPPROTO_IPV6, IPV6_V6ONLY,
968 (char *) &tmp, sizeof(tmp) );
969 if ( rc == AC_SOCKET_ERROR ) {
970 int err = sock_errno();
971 Debug( LDAP_DEBUG_ANY,
972 "slapd(%ld): setsockopt(IPV6_V6ONLY) failed errno=%d (%s)\n",
973 (long) l.sl_sd, err, sock_errstr(err) );
976 addrlen = sizeof(struct sockaddr_in6);
981 addrlen = sizeof(struct sockaddr_un);
986 if (bind(l.sl_sd, *sal, addrlen)) {
988 Debug( LDAP_DEBUG_ANY, "daemon: bind(%ld) failed errno=%d (%s)\n",
989 (long) l.sl_sd, err, sock_errstr(err) );
990 tcp_close( l.sl_sd );
995 switch ( (*sal)->sa_family ) {
998 char *addr = ((struct sockaddr_un *)*sal)->sun_path;
999 #if 0 /* don't muck with socket perms */
1000 if ( chmod( addr, l.sl_perms ) < 0 && crit ) {
1001 int err = sock_errno();
1002 Debug( LDAP_DEBUG_ANY, "daemon: fchmod(%ld) failed errno=%d (%s)",
1003 (long) l.sl_sd, err, sock_errstr(err) );
1004 tcp_close( l.sl_sd );
1005 slap_free_listener_addresses(psal);
1009 l.sl_name.bv_len = strlen(addr) + sizeof("PATH=") - 1;
1010 l.sl_name.bv_val = ber_memalloc( l.sl_name.bv_len + 1 );
1011 snprintf( l.sl_name.bv_val, l.sl_name.bv_len + 1,
1014 #endif /* LDAP_PF_LOCAL */
1018 #if defined( HAVE_GETADDRINFO ) && defined( HAVE_INET_NTOP )
1019 char addr[INET_ADDRSTRLEN];
1020 inet_ntop( AF_INET, &((struct sockaddr_in *)*sal)->sin_addr,
1021 addr, sizeof(addr) );
1024 s = inet_ntoa( ((struct sockaddr_in *) *sal)->sin_addr );
1026 port = ntohs( ((struct sockaddr_in *)*sal) ->sin_port );
1027 l.sl_name.bv_val = ber_memalloc( sizeof("IP=255.255.255.255:65535") );
1028 snprintf( l.sl_name.bv_val, sizeof("IP=255.255.255.255:65535"),
1030 s != NULL ? s : SLAP_STRING_UNKNOWN, port );
1031 l.sl_name.bv_len = strlen( l.sl_name.bv_val );
1034 #ifdef LDAP_PF_INET6
1036 char addr[INET6_ADDRSTRLEN];
1037 inet_ntop( AF_INET6, &((struct sockaddr_in6 *)*sal)->sin6_addr,
1039 port = ntohs( ((struct sockaddr_in6 *)*sal)->sin6_port );
1040 l.sl_name.bv_len = strlen(addr) + sizeof("IP= 65535");
1041 l.sl_name.bv_val = ber_memalloc( l.sl_name.bv_len );
1042 snprintf( l.sl_name.bv_val, l.sl_name.bv_len, "IP=%s %d",
1044 l.sl_name.bv_len = strlen( l.sl_name.bv_val );
1046 #endif /* LDAP_PF_INET6 */
1049 Debug( LDAP_DEBUG_ANY, "daemon: unsupported address family (%d)\n",
1050 (int) (*sal)->sa_family, 0, 0 );
1054 AC_MEMCPY(&l.sl_sa, *sal, addrlen);
1055 ber_str2bv( url, 0, 1, &l.sl_url);
1056 li = ch_malloc( sizeof( Listener ) );
1058 slap_listeners[*cur] = li;
1062 } /* while ( *sal != NULL ) */
1064 slap_free_listener_addresses(psal);
1066 if ( l.sl_url.bv_val == NULL )
1068 Debug( LDAP_DEBUG_TRACE,
1069 "slap_open_listener: failed on %s\n", url, 0, 0 );
1073 Debug( LDAP_DEBUG_TRACE, "daemon: initialized %s\n",
1074 l.sl_url.bv_val, 0, 0 );
1078 static int sockinit(void);
1079 static int sockdestroy(void);
1081 int slapd_daemon_init( const char *urls )
1086 Debug( LDAP_DEBUG_ARGS, "daemon_init: %s\n",
1087 urls ? urls : "<null>", 0, 0 );
1088 if( (rc = sockinit()) != 0 ) {
1093 dtblsize = sysconf( _SC_OPEN_MAX );
1094 #elif HAVE_GETDTABLESIZE
1095 dtblsize = getdtablesize();
1097 dtblsize = FD_SETSIZE;
1100 /* open a pipe (or something equivalent connected to itself).
1101 * we write a byte on this fd whenever we catch a signal. The main
1102 * loop will be select'ing on this socket, and will wake up when
1103 * this byte arrives.
1105 if( (rc = lutil_pair( wake_sds )) < 0 ) {
1106 Debug( LDAP_DEBUG_ANY,
1107 "daemon: lutil_pair() failed rc=%d\n", rc, 0, 0 );
1113 if( urls == NULL ) {
1117 u = ldap_str2charray( urls, " " );
1119 if( u == NULL || u[0] == NULL ) {
1120 Debug( LDAP_DEBUG_ANY, "daemon_init: no urls (%s) provided.\n",
1125 for( i=0; u[i] != NULL; i++ ) {
1126 Debug( LDAP_DEBUG_TRACE, "daemon_init: listen on %s\n",
1131 Debug( LDAP_DEBUG_ANY, "daemon_init: no listeners to open (%s)\n",
1133 ldap_charray_free( u );
1137 Debug( LDAP_DEBUG_TRACE, "daemon_init: %d listeners to open...\n",
1139 slap_listeners = ch_malloc( (i+1)*sizeof(Listener *) );
1141 for(n = 0, j = 0; u[n]; n++ ) {
1142 if ( slap_open_listener( u[n], &i, &j ) ) {
1143 ldap_charray_free( u );
1147 slap_listeners[j] = NULL;
1149 Debug( LDAP_DEBUG_TRACE, "daemon_init: %d listeners opened\n",
1153 if( slapd_register_slp ) {
1154 slapd_slp_init( urls );
1159 ldap_charray_free( u );
1160 ldap_pvt_thread_mutex_init( &slap_daemon.sd_mutex );
1166 slapd_daemon_destroy(void)
1168 connections_destroy();
1169 tcp_close( wake_sds[1] );
1170 tcp_close( wake_sds[0] );
1174 if( slapd_register_slp ) {
1191 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1192 if ( slap_listeners[l]->sl_sd != AC_SOCKET_INVALID ) {
1194 slapd_remove( slap_listeners[l]->sl_sd, 0, 0 );
1195 #ifdef LDAP_PF_LOCAL
1196 if ( slap_listeners[l]->sl_sa.sa_addr.sa_family == AF_LOCAL ) {
1197 unlink( slap_listeners[l]->sl_sa.sa_un_addr.sun_path );
1199 #endif /* LDAP_PF_LOCAL */
1200 slapd_close( slap_listeners[l]->sl_sd );
1202 if ( slap_listeners[l]->sl_url.bv_val )
1203 ber_memfree( slap_listeners[l]->sl_url.bv_val );
1204 if ( slap_listeners[l]->sl_name.bv_val )
1205 ber_memfree( slap_listeners[l]->sl_name.bv_val );
1206 free ( slap_listeners[l] );
1207 slap_listeners[l] = NULL;
1212 slapd_handle_listener(
1219 socklen_t len = sizeof(from);
1222 struct berval authid = BER_BVNULL;
1223 #ifdef SLAPD_RLOOKUPS
1224 char hbuf[NI_MAXHOST];
1227 char *dnsname = NULL;
1228 char *peeraddr = NULL;
1229 #ifdef LDAP_PF_LOCAL
1230 char peername[MAXPATHLEN + sizeof("PATH=")];
1231 #elif defined(LDAP_PF_INET6)
1232 char peername[sizeof("IP=ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff 65535")];
1234 char peername[sizeof("IP=255.255.255.255:65336")];
1235 #endif /* LDAP_PF_LOCAL */
1239 #ifdef LDAP_CONNECTIONLESS
1240 if ( sl->sl_is_udp ) {
1241 /* The first time we receive a query, we set this
1242 * up as a "connection". It remains open for the life
1245 if ( sl->sl_is_udp < 2 ) {
1246 id = connection_init( sl->sl_sd, sl, "", "",
1247 CONN_IS_UDP, ssf, NULL );
1254 # ifdef LDAP_PF_LOCAL
1255 /* FIXME: apparently accept doesn't fill
1256 * the sun_path sun_path member */
1257 from.sa_un_addr.sun_path[0] = '\0';
1258 # endif /* LDAP_PF_LOCAL */
1260 s = accept( sl->sl_sd, (struct sockaddr *) &from, &len );
1261 if ( s == AC_SOCKET_INVALID ) {
1262 int err = sock_errno();
1273 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
1275 /* Stop listening until an existing session closes */
1277 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
1280 Debug( LDAP_DEBUG_ANY,
1281 "daemon: accept(%ld) failed errno=%d (%s)\n",
1282 (long) sl->sl_sd, err,
1284 ldap_pvt_thread_yield();
1288 #ifndef HAVE_WINSOCK
1289 /* make sure descriptor number isn't too great */
1290 if ( s >= dtblsize ) {
1291 Debug( LDAP_DEBUG_ANY,
1292 "daemon: %ld beyond descriptor table size %ld\n",
1293 (long) s, (long) dtblsize, 0 );
1296 ldap_pvt_thread_yield();
1302 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
1304 /* newly accepted stream should not be in any of the FD SETS */
1305 assert( SLAP_SOCK_NOT_ACTIVE( s ));
1307 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
1310 #if defined( SO_KEEPALIVE ) || defined( TCP_NODELAY )
1311 #ifdef LDAP_PF_LOCAL
1312 /* for IPv4 and IPv6 sockets only */
1313 if ( from.sa_addr.sa_family != AF_LOCAL )
1314 #endif /* LDAP_PF_LOCAL */
1319 /* enable keep alives */
1321 rc = setsockopt( s, SOL_SOCKET, SO_KEEPALIVE,
1322 (char *) &tmp, sizeof(tmp) );
1323 if ( rc == AC_SOCKET_ERROR ) {
1324 int err = sock_errno();
1325 Debug( LDAP_DEBUG_ANY,
1326 "slapd(%ld): setsockopt(SO_KEEPALIVE) failed "
1327 "errno=%d (%s)\n", (long) s, err, sock_errstr(err) );
1331 /* enable no delay */
1333 rc = setsockopt( s, IPPROTO_TCP, TCP_NODELAY,
1334 (char *)&tmp, sizeof(tmp) );
1335 if ( rc == AC_SOCKET_ERROR ) {
1336 int err = sock_errno();
1337 Debug( LDAP_DEBUG_ANY,
1338 "slapd(%ld): setsockopt(TCP_NODELAY) failed "
1339 "errno=%d (%s)\n", (long) s, err, sock_errstr(err) );
1345 Debug( LDAP_DEBUG_CONNS, "daemon: new connection on %ld\n",
1347 switch ( from.sa_addr.sa_family ) {
1348 # ifdef LDAP_PF_LOCAL
1350 /* FIXME: apparently accept doesn't fill
1351 * the sun_path sun_path member */
1352 if ( from.sa_un_addr.sun_path[0] == '\0' ) {
1353 AC_MEMCPY( from.sa_un_addr.sun_path,
1354 sl->sl_sa.sa_un_addr.sun_path,
1355 sizeof( from.sa_un_addr.sun_path ) );
1358 sprintf( peername, "PATH=%s", from.sa_un_addr.sun_path );
1364 if( getpeereid( s, &uid, &gid ) == 0 ) {
1365 authid.bv_val = ch_malloc(
1366 sizeof("uidnumber=4294967295+gidnumber=4294967295,"
1367 "cn=peercred,cn=external,cn=auth"));
1368 authid.bv_len = sprintf( authid.bv_val,
1369 "uidnumber=%d+gidnumber=%d,"
1370 "cn=peercred,cn=external,cn=auth",
1371 (int) uid, (int) gid);
1376 #endif /* LDAP_PF_LOCAL */
1378 # ifdef LDAP_PF_INET6
1380 if ( IN6_IS_ADDR_V4MAPPED(&from.sa_in6_addr.sin6_addr) ) {
1381 peeraddr = inet_ntoa( *((struct in_addr *)
1382 &from.sa_in6_addr.sin6_addr.s6_addr[12]) );
1383 sprintf( peername, "IP=%s:%d",
1384 peeraddr != NULL ? peeraddr : SLAP_STRING_UNKNOWN,
1385 (unsigned) ntohs( from.sa_in6_addr.sin6_port ) );
1387 char addr[INET6_ADDRSTRLEN];
1389 peeraddr = (char *) inet_ntop( AF_INET6,
1390 &from.sa_in6_addr.sin6_addr,
1391 addr, sizeof addr );
1392 sprintf( peername, "IP=%s %d",
1393 peeraddr != NULL ? peeraddr : SLAP_STRING_UNKNOWN,
1394 (unsigned) ntohs( from.sa_in6_addr.sin6_port ) );
1397 # endif /* LDAP_PF_INET6 */
1400 peeraddr = inet_ntoa( from.sa_in_addr.sin_addr );
1401 sprintf( peername, "IP=%s:%d",
1402 peeraddr != NULL ? peeraddr : SLAP_STRING_UNKNOWN,
1403 (unsigned) ntohs( from.sa_in_addr.sin_port ) );
1411 if ( ( from.sa_addr.sa_family == AF_INET )
1412 #ifdef LDAP_PF_INET6
1413 || ( from.sa_addr.sa_family == AF_INET6 )
1416 #ifdef SLAPD_RLOOKUPS
1417 if ( use_reverse_lookup ) {
1419 if (ldap_pvt_get_hname( (const struct sockaddr *)&from, len, hbuf,
1420 sizeof(hbuf), &herr ) == 0) {
1421 ldap_pvt_str2lower( hbuf );
1427 #endif /* SLAPD_RLOOKUPS */
1430 if ( !hosts_ctl("slapd",
1431 dnsname != NULL ? dnsname : SLAP_STRING_UNKNOWN,
1432 peeraddr != NULL ? peeraddr : SLAP_STRING_UNKNOWN,
1433 SLAP_STRING_UNKNOWN ))
1436 Statslog( LDAP_DEBUG_STATS,
1437 "fd=%ld DENIED from %s (%s)\n",
1439 dnsname != NULL ? dnsname : SLAP_STRING_UNKNOWN,
1440 peeraddr != NULL ? peeraddr : SLAP_STRING_UNKNOWN,
1445 #endif /* HAVE_TCPD */
1448 id = connection_init(s, sl,
1449 dnsname != NULL ? dnsname : SLAP_STRING_UNKNOWN,
1452 sl->sl_is_tls ? CONN_IS_TLS : 0,
1457 authid.bv_val ? &authid : NULL );
1459 if( authid.bv_val ) ch_free(authid.bv_val);
1462 Debug( LDAP_DEBUG_ANY,
1463 "daemon: connection_init(%ld, %s, %s) failed.\n",
1464 (long) s, peername, sl->sl_name.bv_val );
1469 Statslog( LDAP_DEBUG_STATS,
1470 "conn=%ld fd=%ld ACCEPT from %s (%s)\n",
1471 id, (long) s, peername, sl->sl_name.bv_val,
1474 slapd_add( s, 1, NULL );
1484 time_t last_idle_check = 0;
1485 struct timeval idle;
1488 #define SLAPD_IDLE_CHECK_LIMIT 4
1490 if ( global_idletimeout > 0 ) {
1491 last_idle_check = slap_get_time();
1492 /* Set the select timeout.
1493 * Don't just truncate, preserve the fractions of
1494 * seconds to prevent sleeping for zero time.
1496 idle.tv_sec = global_idletimeout/SLAPD_IDLE_CHECK_LIMIT;
1497 idle.tv_usec = global_idletimeout - idle.tv_sec * SLAPD_IDLE_CHECK_LIMIT;
1498 idle.tv_usec *= 1000000 / SLAPD_IDLE_CHECK_LIMIT;
1504 slapd_add( wake_sds[0], 0, NULL );
1506 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1507 if ( slap_listeners[l]->sl_sd == AC_SOCKET_INVALID )
1509 #ifdef LDAP_CONNECTIONLESS
1510 /* Since this is connectionless, the data port is the
1511 * listening port. The listen() and accept() calls
1514 if ( slap_listeners[l]->sl_is_udp ) {
1515 slapd_add( slap_listeners[l]->sl_sd, 1, slap_listeners[l] );
1520 if ( listen( slap_listeners[l]->sl_sd, SLAPD_LISTEN ) == -1 ) {
1521 int err = sock_errno();
1523 #ifdef LDAP_PF_INET6
1524 /* If error is EADDRINUSE, we are trying to listen to INADDR_ANY and
1525 * we are already listening to in6addr_any, then we want to ignore
1526 * this and continue.
1528 if ( err == EADDRINUSE ) {
1530 struct sockaddr_in sa = slap_listeners[l]->sl_sa.sa_in_addr;
1531 struct sockaddr_in6 sa6;
1533 if ( sa.sin_family == AF_INET &&
1534 sa.sin_addr.s_addr == htonl(INADDR_ANY) ) {
1535 for ( i = 0 ; i < l; i++ ) {
1536 sa6 = slap_listeners[i]->sl_sa.sa_in6_addr;
1537 if ( sa6.sin6_family == AF_INET6 &&
1538 !memcmp( &sa6.sin6_addr, &in6addr_any, sizeof(struct in6_addr) ) )
1543 /* We are already listening to in6addr_any */
1544 Debug( LDAP_DEBUG_CONNS,
1545 "daemon: Attempt to listen to 0.0.0.0 failed, already listening on ::, assuming IPv4 included\n",
1547 slapd_close( slap_listeners[l]->sl_sd );
1548 slap_listeners[l]->sl_sd = AC_SOCKET_INVALID;
1554 Debug( LDAP_DEBUG_ANY,
1555 "daemon: listen(%s, 5) failed errno=%d (%s)\n",
1556 slap_listeners[l]->sl_url.bv_val, err,
1558 return( (void*)-1 );
1561 slapd_add( slap_listeners[l]->sl_sd, 0, slap_listeners[l] );
1564 #ifdef HAVE_NT_SERVICE_MANAGER
1565 if ( started_event != NULL ) {
1566 ldap_pvt_thread_cond_signal( &started_event );
1569 /* initialization complete. Here comes the loop. */
1571 while ( !slapd_shutdown ) {
1575 ber_socket_t nfds, nrfds, nwfds;
1576 #define SLAPD_EBADF_LIMIT 16
1583 struct timeval *tvp;
1585 struct timeval *cat;
1588 now = slap_get_time();
1590 if( ( global_idletimeout > 0 ) &&
1591 difftime( last_idle_check +
1592 global_idletimeout/SLAPD_IDLE_CHECK_LIMIT, now ) < 0 ) {
1593 connections_timeout_idle( now );
1594 last_idle_check = now;
1599 if( slapd_gentle_shutdown ) {
1600 ber_socket_t active;
1602 if( slapd_gentle_shutdown == 1 ) {
1603 Debug( LDAP_DEBUG_ANY, "slapd gentle shutdown\n", 0, 0, 0 );
1604 close_listeners( 1 );
1605 frontendDB->be_restrictops |= SLAP_RESTRICT_OP_WRITES;
1606 slapd_gentle_shutdown = 2;
1609 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
1610 active = slap_daemon.sd_nactives;
1611 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
1621 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
1623 nwriters = slap_daemon.sd_nwriters;
1626 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1627 if ( slap_listeners[l]->sl_sd == AC_SOCKET_INVALID )
1629 if ( slap_listeners[l]->sl_is_mute )
1630 SLAP_SOCK_SET_MUTE( slap_listeners[l]->sl_sd );
1632 if ( SLAP_SOCK_IS_MUTE( slap_listeners[l]->sl_sd ))
1633 SLAP_SOCK_CLR_MUTE( slap_listeners[l]->sl_sd );
1636 nfds = SLAP_EVENT_MAX;
1638 if ( global_idletimeout && slap_daemon.sd_nactives )
1641 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
1644 #if defined(HAVE_YIELDING_SELECT) || defined(NO_THREADS)
1645 && ( tv.tv_sec || tv.tv_usec )
1652 ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
1653 rtask = ldap_pvt_runqueue_next_sched( &slapd_rq, &cat );
1654 while ( cat && cat->tv_sec && cat->tv_sec <= now ) {
1655 if ( ldap_pvt_runqueue_isrunning( &slapd_rq, rtask )) {
1656 ldap_pvt_runqueue_resched( &slapd_rq, rtask, 0 );
1658 ldap_pvt_runqueue_runtask( &slapd_rq, rtask );
1659 ldap_pvt_runqueue_resched( &slapd_rq, rtask, 0 );
1660 ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
1661 ldap_pvt_thread_pool_submit( &connection_pool,
1662 rtask->routine, (void *) rtask );
1663 ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
1665 rtask = ldap_pvt_runqueue_next_sched( &slapd_rq, &cat );
1667 ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
1669 if ( cat != NULL ) {
1670 time_t diff = difftime( cat->tv_sec, now );
1673 if ( tvp == NULL || diff < tv.tv_sec ) {
1680 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1681 if ( slap_listeners[l]->sl_sd == AC_SOCKET_INVALID ||
1682 slap_listeners[l]->sl_is_mute )
1685 Debug( LDAP_DEBUG_CONNS,
1686 "daemon: select: listen=%d active_threads=%d tvp=%s\n",
1687 slap_listeners[l]->sl_sd, at,
1688 tvp == NULL ? "NULL" : "zero" );
1691 switch(ns = SLAP_EVENT_WAIT(tvp))
1693 case -1: { /* failure - try again */
1694 int err = sock_errno();
1698 /* you'd think this would be EBADF */
1699 || err == WSAENOTSOCK
1702 if (++ebadf < SLAPD_EBADF_LIMIT)
1706 if( err != EINTR ) {
1707 Debug( LDAP_DEBUG_CONNS,
1708 "daemon: select failed (%d): %s\n",
1709 err, sock_errstr(err), 0 );
1715 case 0: /* timeout - let threads run */
1717 Debug( LDAP_DEBUG_CONNS, "daemon: select timeout - yielding\n",
1720 ldap_pvt_thread_yield();
1723 default: /* something happened - deal with it */
1724 if( slapd_shutdown ) continue;
1727 Debug( LDAP_DEBUG_CONNS, "daemon: activity on %d descriptors\n",
1732 #if SLAP_EVENTS_ARE_INDEXED
1733 if ( SLAP_EVENT_IS_READ( wake_sds[0] )) {
1735 tcp_read( wake_sds[0], c, sizeof(c) );
1738 SLAP_EVENT_CLR_READ( wake_sds[0] );
1742 /* The event slot equals the descriptor number - this is
1743 * true for Unix select and poll. We treat Windows select
1744 * like this too, even though it's a kludge.
1746 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1749 if ( ns <= 0 ) break;
1751 if ( slap_listeners[l]->sl_sd == AC_SOCKET_INVALID )
1754 if ( !SLAP_EVENT_IS_READ( slap_listeners[l]->sl_sd ))
1759 rc = slapd_handle_listener(slap_listeners[l]);
1761 #ifdef LDAP_CONNECTIONLESS
1762 /* This is a UDP session, let the data loop process it */
1766 /* Don't need to look at this in the data loops */
1767 SLAP_EVENT_CLR_READ( slap_listeners[l]->sl_sd );
1768 SLAP_EVENT_CLR_WRITE( slap_listeners[l]->sl_sd );
1771 /* bypass the following tests if no descriptors left */
1773 ldap_pvt_thread_yield();
1777 Debug( LDAP_DEBUG_CONNS, "daemon: activity on:", 0, 0, 0 );
1779 nrfds = readfds.fd_count;
1780 nwfds = writefds.fd_count;
1781 for ( i = 0; i < readfds.fd_count; i++ ) {
1782 Debug( LDAP_DEBUG_CONNS, " %d%s",
1783 readfds.fd_array[i], "r", 0 );
1785 for ( i = 0; i < writefds.fd_count; i++ ) {
1786 Debug( LDAP_DEBUG_CONNS, " %d%s",
1787 writefds.fd_array[i], "w", 0 );
1793 for ( i = 0; i < nfds; i++ ) {
1796 r = SLAP_EVENT_IS_READ( i );
1797 w = SLAP_EVENT_IS_WRITE( i );
1799 Debug( LDAP_DEBUG_CONNS, " %d%s%s", i,
1800 r ? "r" : "", w ? "w" : "" );
1810 if ( ns <= 0 ) break;
1813 Debug( LDAP_DEBUG_CONNS, "\n", 0, 0, 0 );
1816 /* loop through the writers */
1817 for ( i = 0; nwfds > 0; i++ )
1821 wd = writefds.fd_array[i];
1823 if( ! SLAP_EVENT_IS_WRITE( i ) ) {
1830 Debug( LDAP_DEBUG_CONNS,
1831 "daemon: write active on %d\n",
1834 * NOTE: it is possible that the connection was closed
1835 * and that the stream is now inactive.
1836 * connection_write() must valid the stream is still
1840 if ( connection_write( wd ) < 0 ) {
1841 if ( SLAP_EVENT_IS_READ( wd )) {
1842 SLAP_EVENT_CLR_READ( (unsigned) wd );
1847 SLAP_EVENT_CLR_WRITE( wd );
1850 for ( i = 0; nrfds > 0; i++ )
1854 rd = readfds.fd_array[i];
1856 if( ! SLAP_EVENT_IS_READ( i ) ) {
1863 Debug ( LDAP_DEBUG_CONNS,
1864 "daemon: read activity on %d\n", rd, 0, 0 );
1866 * NOTE: it is possible that the connection was closed
1867 * and that the stream is now inactive.
1868 * connection_read() must valid the stream is still
1872 if ( connection_read( rd ) < 0 ) {
1876 #else /* !SLAP_EVENTS_ARE_INDEXED */
1878 /* The events are returned in an arbitrary list. This is true
1879 * for /dev/poll, epoll and kqueue. In order to prioritize things
1880 * so that we can handle wake_sds first, listeners second, and then
1881 * all other connections last (as we do for select), we would need
1882 * to use multiple event handles and cascade them.
1884 * That seems like a bit of hassle. So the wake_sds check has been
1885 * skipped. For epoll and kqueue we can associate arbitrary data with
1886 * an event, so we could use pointers to the listener structure
1887 * instead of just the file descriptor. For /dev/poll we have to
1888 * search the listeners array for a matching descriptor.
1890 /* if waking is set and we woke up, we'll read whatever
1895 tcp_read( wake_sds[0], c, sizeof(c) );
1902 Debug( LDAP_DEBUG_CONNS, "daemon: activity on:", 0, 0, 0 );
1904 for (i=0; i<ns; i++) {
1907 if ( SLAP_EVENT_IS_LISTENER(i)
1908 #ifdef LDAP_CONNECTIONLESS
1909 && !((SLAP_EVENT_LISTENER(i))->sl_is_udp)
1913 r = SLAP_EVENT_IS_READ( i );
1914 w = SLAP_EVENT_IS_WRITE( i );
1916 Debug( LDAP_DEBUG_CONNS, " %d%s%s", SLAP_EVENT_FD(i),
1917 r ? "r" : "", w ? "w" : "" );
1921 for (i=0; i<ns; i++) {
1924 if ( SLAP_EVENT_IS_LISTENER(i) ) {
1925 rc = slapd_handle_listener( SLAP_EVENT_LISTENER( i ));
1927 /* If we found a regular listener, rc is now zero, and we
1928 * can skip the data portion. But if it was a UDP listener
1929 * then rc is still 1, and we want to handle the data.
1932 fd = SLAP_EVENT_FD( i );
1934 if( SLAP_EVENT_IS_WRITE( i ) ) {
1935 Debug( LDAP_DEBUG_CONNS,
1936 "daemon: write active on %d\n",
1939 * NOTE: it is possible that the connection was closed
1940 * and that the stream is now inactive.
1941 * connection_write() must valid the stream is still
1945 if ( connection_write( fd ) < 0 ) {
1950 if( SLAP_EVENT_IS_READ( i ) ) {
1951 Debug( LDAP_DEBUG_CONNS,
1952 "daemon: read active on %d\n",
1955 * NOTE: it is possible that the connection was closed
1956 * and that the stream is now inactive.
1957 * connection_read() must valid the stream is still
1961 if ( connection_read( fd ) < 0 ) {
1967 #endif /* SLAP_EVENTS_ARE_INDEXED */
1969 ldap_pvt_thread_yield();
1972 if( slapd_shutdown == 1 ) {
1973 Debug( LDAP_DEBUG_TRACE,
1974 "daemon: shutdown requested and initiated.\n",
1977 } else if ( slapd_shutdown == 2 ) {
1978 #ifdef HAVE_NT_SERVICE_MANAGER
1979 Debug( LDAP_DEBUG_TRACE,
1980 "daemon: shutdown initiated by Service Manager.\n",
1982 #else /* !HAVE_NT_SERVICE_MANAGER */
1983 Debug( LDAP_DEBUG_TRACE,
1984 "daemon: abnormal condition, shutdown initiated.\n",
1986 #endif /* !HAVE_NT_SERVICE_MANAGER */
1988 Debug( LDAP_DEBUG_TRACE,
1989 "daemon: no active streams, shutdown initiated.\n",
1993 if( slapd_gentle_shutdown != 2 ) {
1994 close_listeners ( 0 );
1997 free ( slap_listeners );
1998 slap_listeners = NULL;
2000 if( !slapd_gentle_shutdown ) {
2001 slapd_abrupt_shutdown = 1;
2002 connections_shutdown();
2005 Debug( LDAP_DEBUG_ANY,
2006 "slapd shutdown: waiting for %d threads to terminate\n",
2007 ldap_pvt_thread_pool_backload(&connection_pool), 0, 0 );
2008 ldap_pvt_thread_pool_destroy(&connection_pool, 1);
2014 int slapd_daemon( void )
2020 #define SLAPD_LISTENER_THREAD 1
2021 #if defined( SLAPD_LISTENER_THREAD )
2023 ldap_pvt_thread_t listener_tid;
2025 /* listener as a separate THREAD */
2026 rc = ldap_pvt_thread_create( &listener_tid,
2027 0, slapd_daemon_task, NULL );
2030 Debug( LDAP_DEBUG_ANY,
2031 "listener ldap_pvt_thread_create failed (%d)\n", rc, 0, 0 );
2035 /* wait for the listener thread to complete */
2036 ldap_pvt_thread_join( listener_tid, (void *) NULL );
2039 /* experimental code */
2040 slapd_daemon_task( NULL );
2049 #if defined( HAVE_WINSOCK2 )
2050 WORD wVersionRequested;
2054 wVersionRequested = MAKEWORD( 2, 0 );
2056 err = WSAStartup( wVersionRequested, &wsaData );
2058 /* Tell the user that we couldn't find a usable */
2063 /* Confirm that the WinSock DLL supports 2.0.*/
2064 /* Note that if the DLL supports versions greater */
2065 /* than 2.0 in addition to 2.0, it will still return */
2066 /* 2.0 in wVersion since that is the version we */
2069 if ( LOBYTE( wsaData.wVersion ) != 2 ||
2070 HIBYTE( wsaData.wVersion ) != 0 )
2072 /* Tell the user that we couldn't find a usable */
2078 /* The WinSock DLL is acceptable. Proceed. */
2079 #elif defined( HAVE_WINSOCK )
2081 if ( WSAStartup( 0x0101, &wsaData ) != 0 ) {
2088 int sockdestroy(void)
2090 #if defined( HAVE_WINSOCK2 ) || defined( HAVE_WINSOCK )
2097 slap_sig_shutdown( int sig )
2100 Debug(LDAP_DEBUG_TRACE, "slap_sig_shutdown: signal %d\n", sig, 0, 0);
2104 * If the NT Service Manager is controlling the server, we don't
2105 * want SIGBREAK to kill the server. For some strange reason,
2106 * SIGBREAK is generated when a user logs out.
2109 #if HAVE_NT_SERVICE_MANAGER && SIGBREAK
2110 if (is_NT_Service && sig == SIGBREAK)
2115 if (sig == SIGHUP && global_gentlehup && slapd_gentle_shutdown == 0)
2116 slapd_gentle_shutdown = 1;
2122 /* reinstall self */
2123 (void) SIGNAL_REINSTALL( sig, slap_sig_shutdown );
2127 slap_sig_wake( int sig )
2131 /* reinstall self */
2132 (void) SIGNAL_REINSTALL( sig, slap_sig_wake );
2136 void slapd_add_internal(ber_socket_t s, int isactive) {
2137 slapd_add(s, isactive, NULL);
2140 Listener ** slapd_get_listeners(void) {
2141 return slap_listeners;
2144 void slap_wake_listener()