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"
43 #if defined(HAVE_SYS_EPOLL_H) && defined(HAVE_EPOLL)
44 #include <sys/epoll.h>
49 #define SLAP_STRING_UNKNOWN STRING_UNKNOWN
51 int allow_severity = LOG_INFO;
52 int deny_severity = LOG_NOTICE;
53 #else /* ! TCP Wrappers */
54 #define SLAP_STRING_UNKNOWN "unknown"
55 #endif /* ! TCP Wrappers */
59 /* this should go in <ldap.h> as soon as it is accepted */
60 #define LDAPI_MOD_URLEXT "x-mod"
61 #endif /* LDAP_PF_LOCAL */
64 int slap_inet4or6 = AF_UNSPEC;
66 int slap_inet4or6 = AF_INET;
71 ber_socket_t dtblsize;
72 slap_ssf_t local_ssf = LDAP_PVT_SASL_LOCAL_SSF;
73 struct runqueue_s slapd_rq;
75 Listener **slap_listeners = NULL;
77 #ifndef SLAPD_LISTEN_BACKLOG
78 #define SLAPD_LISTEN_BACKLOG 1024
81 static ber_socket_t wake_sds[2];
85 #define WAKE_LISTENER(w) do { \
86 if ((w) && waking < 5) { waking++; tcp_write( wake_sds[1], "0", 1 ); } \
89 volatile sig_atomic_t slapd_shutdown = 0, slapd_gentle_shutdown = 0;
90 volatile sig_atomic_t slapd_abrupt_shutdown = 0;
92 static struct slap_daemon {
93 ldap_pvt_thread_mutex_t sd_mutex;
95 ber_socket_t sd_nactives;
99 struct epoll_event *sd_epolls;
107 /* In winsock, accept() returns values higher than dtblsize
108 so don't bother with this optimization */
119 #define SLAP_EVENTS_ARE_INDEXED 0
120 #define SLAP_SOCK_IX(s) (slap_daemon.sd_index[s])
121 #define SLAP_SOCK_EP(s) (slap_daemon.sd_epolls[SLAP_SOCK_IX(s)])
122 #define SLAP_SOCK_EV(s) (SLAP_SOCK_EP(s).events)
123 #define SLAP_SOCK_IS_ACTIVE(s) (SLAP_SOCK_IX(s) != -1)
124 #define SLAP_SOCK_NOT_ACTIVE(s) (SLAP_SOCK_IX(s) == -1)
125 #define SLAP_SOCK_IS_SET(s, mode) (SLAP_SOCK_EV(s) & mode)
127 #define SLAP_SOCK_IS_READ(s) SLAP_SOCK_IS_SET(s, EPOLLIN)
128 #define SLAP_SOCK_IS_WRITE(s) SLAP_SOCK_IS_SET(s, EPOLLOUT)
130 #define SLAP_SET_SOCK(s, mode) do { \
131 if ((SLAP_SOCK_EV(s) & mode) != mode) { \
132 SLAP_SOCK_EV(s) |= mode; \
133 epoll_ctl(slap_daemon.sd_epfd, EPOLL_CTL_MOD, s, \
138 #define SLAP_CLR_SOCK(s, mode) do { \
139 if ((SLAP_SOCK_EV(s) & mode)) { \
140 SLAP_SOCK_EV(s) &= ~mode; \
141 epoll_ctl(slap_daemon.sd_epfd, EPOLL_CTL_MOD, s, \
146 #define SLAP_SOCK_SET_READ(s) SLAP_SET_SOCK(s, EPOLLIN)
147 #define SLAP_SOCK_SET_WRITE(s) SLAP_SET_SOCK(s, EPOLLOUT)
149 #define SLAP_SOCK_CLR_READ(s) SLAP_CLR_SOCK(s, EPOLLIN)
150 #define SLAP_SOCK_CLR_WRITE(s) SLAP_CLR_SOCK(s, EPOLLOUT)
152 #define SLAP_CLR_EVENT(i, mode) (revents[i].events &= ~mode)
155 #define SLAP_EVENT_MAX slap_daemon.sd_nfds
157 /* If a Listener address is provided, store that as the epoll data.
158 * Otherwise, store the address of this socket's slot in the
159 * index array. If we can't do this add, the system is out of
160 * resources and we need to shutdown.
162 #define SLAP_ADD_SOCK(s, l) do { \
164 SLAP_SOCK_IX(s) = slap_daemon.sd_nfds; \
165 SLAP_SOCK_EP(s).data.ptr = (l) ? (l) : (void *)(&SLAP_SOCK_IX(s)); \
166 SLAP_SOCK_EV(s) = EPOLLIN; \
167 rc = epoll_ctl(slap_daemon.sd_epfd, EPOLL_CTL_ADD, s, \
169 if ( rc == 0 ) slap_daemon.sd_nfds++; \
171 Debug( LDAP_DEBUG_ANY, "daemon: epoll_ctl ADD failed, errno %d, shutting down\n", \
173 slapd_shutdown = 2; \
177 #define SLAP_EV_LISTENER(ptr) (((int *)(ptr) >= slap_daemon.sd_index && \
178 (int *)(ptr) <= (slap_daemon.sd_index+dtblsize)) ? 0 : 1)
180 #define SLAP_EV_PTRFD(ptr) (SLAP_EV_LISTENER(ptr) ? \
181 ((Listener *)ptr)->sl_sd : (int *)(ptr) - slap_daemon.sd_index)
183 #define SLAP_DEL_SOCK(s) do { \
184 int fd, rc, index = SLAP_SOCK_IX(s); \
185 rc = epoll_ctl(slap_daemon.sd_epfd, EPOLL_CTL_DEL, s, \
187 slap_daemon.sd_epolls[index] = slap_daemon.sd_epolls[slap_daemon.sd_nfds-1]; \
188 fd = SLAP_EV_PTRFD(slap_daemon.sd_epolls[index].data.ptr); \
189 slap_daemon.sd_index[fd] = index; \
190 slap_daemon.sd_index[s] = -1; \
191 slap_daemon.sd_nfds--; \
194 #define SLAP_EVENT_CLR_READ(i) SLAP_CLR_EVENT(i, EPOLLIN)
195 #define SLAP_EVENT_CLR_WRITE(i) SLAP_CLR_EVENT(i, EPOLLOUT)
197 #define SLAP_CHK_EVENT(i, mode) (revents[i].events & mode)
199 #define SLAP_EVENT_IS_READ(i) SLAP_CHK_EVENT(i, EPOLLIN)
200 #define SLAP_EVENT_IS_WRITE(i) SLAP_CHK_EVENT(i, EPOLLOUT)
201 #define SLAP_EVENT_IS_LISTENER(i) SLAP_EV_LISTENER(revents[i].data.ptr)
202 #define SLAP_EVENT_LISTENER(i) (revents[i].data.ptr)
204 #define SLAP_EVENT_FD(i) SLAP_EV_PTRFD(revents[i].data.ptr)
205 #define SLAP_SOCK_SET_MUTE(s) SLAP_SOCK_CLR_READ(s)
206 #define SLAP_SOCK_CLR_MUTE(s) SLAP_SOCK_SET_READ(s)
207 #define SLAP_SOCK_IS_MUTE(s) (!SLAP_SOCK_IS_READ(s))
209 #define SLAP_SOCK_SET_INIT \
210 slap_daemon.sd_epolls = ch_calloc(1, sizeof(struct epoll_event) * dtblsize * 2); \
211 slap_daemon.sd_index = ch_malloc(sizeof(int) * dtblsize); \
212 slap_daemon.sd_epfd = epoll_create( dtblsize ); \
213 for (i=0; i<dtblsize; i++) slap_daemon.sd_index[i] = -1
216 #define SLAP_EVENT_DECL \
217 struct epoll_event *revents
219 #define SLAP_EVENT_INIT \
220 revents = slap_daemon.sd_epolls + dtblsize; \
222 #define SLAP_EVENT_WAIT(tvp) \
223 epoll_wait( slap_daemon.sd_epfd, revents, dtblsize, tvp ? tvp->tv_sec * 1000 : -1 )
228 #define SLAP_EVENTS_ARE_INDEXED 1
229 #define SLAP_EVENT_DECL \
230 fd_set readfds, writefds
232 #define SLAP_EVENT_INIT \
233 AC_MEMCPY( &readfds, &slap_daemon.sd_readers, sizeof(fd_set) ); \
235 AC_MEMCPY( &writefds, &slap_daemon.sd_writers, sizeof(fd_set) ); \
240 #define CHK_SETSIZE \
241 if (dtblsize > FD_SETSIZE) dtblsize = FD_SETSIZE
246 #define SLAP_SOCK_SET_INIT \
248 FD_ZERO(&slap_daemon.sd_readers); \
249 FD_ZERO(&slap_daemon.sd_writers)
251 #define SLAP_SOCK_IS_ACTIVE(fd) FD_ISSET(fd, &slap_daemon.sd_actives)
253 #define SLAP_SOCK_IS_READ(fd) FD_ISSET(fd, &slap_daemon.sd_readers)
254 #define SLAP_SOCK_IS_WRITE(fd) FD_ISSET(fd, &slap_daemon.sd_writers)
256 #define SLAP_SOCK_NOT_ACTIVE(fd) (!SLAP_SOCK_IS_ACTIVE(fd) && \
257 !SLAP_SOCK_IS_READ(fd) && !SLAP_SOCK_IS_WRITE(fd))
260 #define SLAP_SOCK_SET_READ(fd) do { \
261 if (!SLAP_SOCK_IS_READ(fd)) {FD_SET(fd, &slap_daemon.sd_readers);} \
263 #define SLAP_SOCK_SET_WRITE(fd) do { \
264 if (!SLAP_SOCK_IS_WRITE(fd)) {FD_SET(fd, &slap_daemon.sd_writers);} \
267 #define SLAP_ADDTEST(s)
268 #define SLAP_EVENT_MAX dtblsize
270 #define SLAP_SOCK_SET_READ(fd) FD_SET(fd, &slap_daemon.sd_readers)
271 #define SLAP_SOCK_SET_WRITE(fd) FD_SET(fd, &slap_daemon.sd_writers)
273 #define SLAP_EVENT_MAX slap_daemon.sd_nfds
274 #define SLAP_ADDTEST(s) if (s >= slap_daemon.sd_nfds) slap_daemon.sd_nfds = s+1
277 #define SLAP_SOCK_CLR_READ(fd) FD_CLR(fd, &slap_daemon.sd_readers)
278 #define SLAP_SOCK_CLR_WRITE(fd) FD_CLR(fd, &slap_daemon.sd_writers)
280 #define SLAP_ADD_SOCK(s, l) do { \
282 FD_SET(s, &slap_daemon.sd_actives); \
283 FD_SET(s, &slap_daemon.sd_readers); \
286 #define SLAP_DEL_SOCK(s) do { \
287 FD_CLR(s, &slap_daemon.sd_actives); \
288 FD_CLR(s, &slap_daemon.sd_readers); \
289 FD_CLR(s, &slap_daemon.sd_writers); \
292 #define SLAP_EVENT_IS_READ(fd) FD_ISSET(fd, &readfds)
293 #define SLAP_EVENT_IS_WRITE(fd) FD_ISSET(fd, &writefds)
295 #define SLAP_EVENT_CLR_READ(fd) FD_CLR(fd, &readfds)
296 #define SLAP_EVENT_CLR_WRITE(fd) FD_CLR(fd, &writefds)
298 #define SLAP_EVENT_WAIT(tvp) \
299 select( SLAP_EVENT_MAX, &readfds, \
300 nwriters > 0 ? &writefds : NULL, NULL, tvp )
302 #define SLAP_SOCK_SET_MUTE(s) FD_CLR(s, &readfds)
303 #define SLAP_SOCK_CLR_MUTE(s) FD_SET(s, &readfds)
304 #define SLAP_SOCK_IS_MUTE(s) (!FD_ISSET(s, &readfds))
311 * SLP related functions
315 #define LDAP_SRVTYPE_PREFIX "service:ldap://"
316 #define LDAPS_SRVTYPE_PREFIX "service:ldaps://"
317 static char** slapd_srvurls = NULL;
318 static SLPHandle slapd_hslp = 0;
319 int slapd_register_slp = 0;
321 void slapd_slp_init( const char* urls ) {
324 slapd_srvurls = ldap_str2charray( urls, " " );
326 if( slapd_srvurls == NULL ) return;
328 /* find and expand INADDR_ANY URLs */
329 for( i=0; slapd_srvurls[i] != NULL; i++ ) {
330 if( strcmp( slapd_srvurls[i], "ldap:///" ) == 0) {
331 char *host = ldap_pvt_get_fqdn( NULL );
332 if ( host != NULL ) {
333 slapd_srvurls[i] = (char *) ch_realloc( slapd_srvurls[i],
335 sizeof( LDAP_SRVTYPE_PREFIX ) );
336 strcpy( lutil_strcopy(slapd_srvurls[i],
337 LDAP_SRVTYPE_PREFIX ), host );
342 } else if ( strcmp( slapd_srvurls[i], "ldaps:///" ) == 0) {
343 char *host = ldap_pvt_get_fqdn( NULL );
344 if ( host != NULL ) {
345 slapd_srvurls[i] = (char *) ch_realloc( slapd_srvurls[i],
347 sizeof( LDAPS_SRVTYPE_PREFIX ) );
348 strcpy( lutil_strcopy(slapd_srvurls[i],
349 LDAPS_SRVTYPE_PREFIX ), host );
356 /* open the SLP handle */
357 SLPOpen( "en", 0, &slapd_hslp );
360 void slapd_slp_deinit() {
361 if( slapd_srvurls == NULL ) return;
363 ldap_charray_free( slapd_srvurls );
364 slapd_srvurls = NULL;
366 /* close the SLP handle */
367 SLPClose( slapd_hslp );
370 void slapd_slp_regreport(
378 void slapd_slp_reg() {
381 if( slapd_srvurls == NULL ) return;
383 for( i=0; slapd_srvurls[i] != NULL; i++ ) {
384 if( strncmp( slapd_srvurls[i], LDAP_SRVTYPE_PREFIX,
385 sizeof( LDAP_SRVTYPE_PREFIX ) - 1 ) == 0 ||
386 strncmp( slapd_srvurls[i], LDAPS_SRVTYPE_PREFIX,
387 sizeof( LDAPS_SRVTYPE_PREFIX ) - 1 ) == 0 )
391 SLP_LIFETIME_MAXIMUM,
401 void slapd_slp_dereg() {
404 if( slapd_srvurls == NULL ) return;
406 for( i=0; slapd_srvurls[i] != NULL; i++ ) {
407 SLPDereg( slapd_hslp,
413 #endif /* HAVE_SLP */
416 * Add a descriptor to daemon control
418 * If isactive, the descriptor is a live server session and is subject
419 * to idletimeout control. Otherwise, the descriptor is a passive
420 * listener or an outbound client session, and not subject to
421 * idletimeout. The underlying event handler may record the Listener
422 * argument to differentiate Listener's from real sessions.
424 static void slapd_add(ber_socket_t s, int isactive, Listener *sl) {
425 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
427 assert( SLAP_SOCK_NOT_ACTIVE(s) );
430 slap_daemon.sd_nactives++;
433 SLAP_ADD_SOCK(s, sl);
435 Debug( LDAP_DEBUG_CONNS, "daemon: added %ldr\n",
437 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
441 * Remove the descriptor from daemon control
443 void slapd_remove(ber_socket_t s, int wasactive, int wake) {
445 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
448 slap_daemon.sd_nactives--;
450 waswriter = SLAP_SOCK_IS_WRITE(s);
452 Debug( LDAP_DEBUG_CONNS, "daemon: removing %ld%s%s\n",
453 (long) s, SLAP_SOCK_IS_READ(s) ? "r" : "",
454 waswriter ? "w" : "" );
455 if ( waswriter ) slap_daemon.sd_nwriters--;
459 /* If we ran out of file descriptors, we dropped a listener from
460 * the select() loop. Now that we're removing a session from our
461 * control, we can try to resume a dropped listener to use.
465 for ( i = 0; slap_listeners[i] != NULL; i++ ) {
466 if ( slap_listeners[i]->sl_sd != AC_SOCKET_INVALID ) {
467 if ( slap_listeners[i]->sl_sd == s ) continue;
468 if ( slap_listeners[i]->sl_is_mute ) {
469 slap_listeners[i]->sl_is_mute = 0;
475 /* Walked the entire list without enabling anything; emfile
476 * counter is stale. Reset it.
478 if ( slap_listeners[i] == NULL )
481 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
482 WAKE_LISTENER(wake || slapd_gentle_shutdown == 2);
485 void slapd_clr_write(ber_socket_t s, int wake) {
486 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
488 assert( SLAP_SOCK_IS_ACTIVE( s ));
489 if ( SLAP_SOCK_IS_WRITE( s )) {
490 SLAP_SOCK_CLR_WRITE( s );
491 slap_daemon.sd_nwriters--;
494 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
498 void slapd_set_write(ber_socket_t s, int wake) {
499 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
501 assert( SLAP_SOCK_IS_ACTIVE( s ));
502 if ( !SLAP_SOCK_IS_WRITE( s )) {
503 SLAP_SOCK_SET_WRITE( s );
504 slap_daemon.sd_nwriters++;
507 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
511 void slapd_clr_read(ber_socket_t s, int wake) {
512 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
514 assert( SLAP_SOCK_IS_ACTIVE( s ));
515 SLAP_SOCK_CLR_READ( s );
517 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
521 void slapd_set_read(ber_socket_t s, int wake) {
522 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
524 assert( SLAP_SOCK_IS_ACTIVE( s ));
525 if (!SLAP_SOCK_IS_READ( s ))
526 SLAP_SOCK_SET_READ( s );
528 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
532 static void slapd_close(ber_socket_t s) {
533 Debug( LDAP_DEBUG_CONNS, "daemon: closing %ld\n",
538 static void slap_free_listener_addresses(struct sockaddr **sal)
540 struct sockaddr **sap;
546 for (sap = sal; *sap != NULL; sap++) {
553 #if defined(LDAP_PF_LOCAL) || defined(SLAP_X_LISTENER_MOD)
554 static int get_url_perms(
561 assert( exts != NULL );
562 assert( perms != NULL );
563 assert( crit != NULL );
566 for ( i = 0; exts[ i ]; i++ ) {
567 char *type = exts[ i ];
570 if ( type[ 0 ] == '!' ) {
575 if ( strncasecmp( type, LDAPI_MOD_URLEXT "=", sizeof(LDAPI_MOD_URLEXT "=") - 1 ) == 0 ) {
577 + ( sizeof(LDAPI_MOD_URLEXT "=") - 1 );
581 switch (strlen(value)) {
583 /* skip leading '0' */
584 if ( value[ 0 ] != '0' ) {
590 for ( j = 0; j < 3; j++) {
593 v = value[ j ] - '0';
595 if ( v < 0 || v > 7 ) {
604 for ( j = 1; j < 10; j++ ) {
605 static mode_t m[] = { 0,
606 S_IRUSR, S_IWUSR, S_IXUSR,
607 S_IRGRP, S_IWGRP, S_IXGRP,
608 S_IROTH, S_IWOTH, S_IXOTH
610 static char c[] = "-rwxrwxrwx";
612 if ( value[ j ] == c[ j ] ) {
615 } else if ( value[ j ] != '-' ) {
634 #endif /* LDAP_PF_LOCAL || SLAP_X_LISTENER_MOD */
636 /* port = 0 indicates AF_LOCAL */
637 static int slap_get_listener_addresses(
640 struct sockaddr ***sal)
642 struct sockaddr **sap;
646 *sal = ch_malloc(2 * sizeof(void *));
652 *sap = ch_malloc(sizeof(struct sockaddr_un));
658 (sizeof(((struct sockaddr_un *)*sap)->sun_path) - 1) ) {
659 Debug( LDAP_DEBUG_ANY,
660 "daemon: domain socket path (%s) too long in URL",
665 (void)memset( (void *)*sap, '\0', sizeof(struct sockaddr_un) );
666 (*sap)->sa_family = AF_LOCAL;
667 strcpy( ((struct sockaddr_un *)*sap)->sun_path, host );
671 #ifdef HAVE_GETADDRINFO
672 struct addrinfo hints, *res, *sai;
676 memset( &hints, '\0', sizeof(hints) );
677 hints.ai_flags = AI_PASSIVE;
678 hints.ai_socktype = SOCK_STREAM;
679 hints.ai_family = slap_inet4or6;
680 snprintf(serv, sizeof serv, "%d", port);
682 if ( (err = getaddrinfo(host, serv, &hints, &res)) ) {
683 Debug( LDAP_DEBUG_ANY, "daemon: getaddrinfo failed: %s\n",
684 AC_GAI_STRERROR(err), 0, 0);
689 for (n=2; (sai = sai->ai_next) != NULL; n++) {
692 *sal = ch_calloc(n, sizeof(void *));
700 for ( sai=res; sai; sai=sai->ai_next ) {
701 if( sai->ai_addr == NULL ) {
702 Debug( LDAP_DEBUG_ANY, "slap_get_listener_addresses: "
703 "getaddrinfo ai_addr is NULL?\n", 0, 0, 0 );
708 switch (sai->ai_family) {
709 # ifdef LDAP_PF_INET6
711 *sap = ch_malloc(sizeof(struct sockaddr_in6));
716 *(struct sockaddr_in6 *)*sap =
717 *((struct sockaddr_in6 *)sai->ai_addr);
721 *sap = ch_malloc(sizeof(struct sockaddr_in));
726 *(struct sockaddr_in *)*sap =
727 *((struct sockaddr_in *)sai->ai_addr);
735 (*sap)->sa_family = sai->ai_family;
745 struct hostent *he = NULL;
747 if ( host == NULL ) {
748 in.s_addr = htonl(INADDR_ANY);
750 } else if ( !inet_aton( host, &in ) ) {
751 he = gethostbyname( host );
753 Debug( LDAP_DEBUG_ANY,
754 "daemon: invalid host %s", host, 0, 0);
757 for (n = 0; he->h_addr_list[n]; n++) ;
760 *sal = ch_malloc((n+1) * sizeof(void *));
766 for ( i = 0; i<n; i++ ) {
767 sap[i] = ch_malloc(sizeof(struct sockaddr_in));
771 (void)memset( (void *)sap[i], '\0', sizeof(struct sockaddr_in) );
772 sap[i]->sa_family = AF_INET;
773 ((struct sockaddr_in *)sap[i])->sin_port = htons(port);
775 AC_MEMCPY( &((struct sockaddr_in *)sap[i])->sin_addr, he->h_addr_list[i], sizeof(struct in_addr) );
777 AC_MEMCPY( &((struct sockaddr_in *)sap[i])->sin_addr, &in, sizeof(struct in_addr) );
787 slap_free_listener_addresses(*sal);
791 static int slap_open_listener(
802 int err, addrlen = 0;
803 struct sockaddr **sal, **psal;
804 int socktype = SOCK_STREAM; /* default to COTS */
806 #if defined(LDAP_PF_LOCAL) || defined(SLAP_X_LISTENER_MOD)
811 #endif /* LDAP_PF_LOCAL || SLAP_X_LISTENER_MOD */
813 rc = ldap_url_parse( url, &lud );
815 if( rc != LDAP_URL_SUCCESS ) {
816 Debug( LDAP_DEBUG_ANY,
817 "daemon: listen URL \"%s\" parse error=%d\n",
822 l.sl_url.bv_val = NULL;
826 if( ldap_pvt_url_scheme2tls( lud->lud_scheme ) ) {
827 Debug( LDAP_DEBUG_ANY,
828 "daemon: TLS not supported (%s)\n",
830 ldap_free_urldesc( lud );
834 if(! lud->lud_port ) {
835 lud->lud_port = LDAP_PORT;
839 l.sl_is_tls = ldap_pvt_url_scheme2tls( lud->lud_scheme );
841 if(! lud->lud_port ) {
842 lud->lud_port = l.sl_is_tls ? LDAPS_PORT : LDAP_PORT;
846 port = (unsigned short) lud->lud_port;
848 tmp = ldap_pvt_url_scheme2proto(lud->lud_scheme);
849 if ( tmp == LDAP_PROTO_IPC ) {
851 if ( lud->lud_host == NULL || lud->lud_host[0] == '\0' ) {
852 err = slap_get_listener_addresses(LDAPI_SOCK, 0, &sal);
854 err = slap_get_listener_addresses(lud->lud_host, 0, &sal);
858 Debug( LDAP_DEBUG_ANY, "daemon: URL scheme not supported: %s",
860 ldap_free_urldesc( lud );
864 if( lud->lud_host == NULL || lud->lud_host[0] == '\0'
865 || strcmp(lud->lud_host, "*") == 0 )
867 err = slap_get_listener_addresses(NULL, port, &sal);
869 err = slap_get_listener_addresses(lud->lud_host, port, &sal);
872 #ifdef LDAP_CONNECTIONLESS
873 l.sl_is_udp = ( tmp == LDAP_PROTO_UDP );
876 #if defined(LDAP_PF_LOCAL) || defined(SLAP_X_LISTENER_MOD)
877 if ( lud->lud_exts ) {
878 err = get_url_perms( lud->lud_exts, &l.sl_perms, &crit );
880 l.sl_perms = S_IRWXU | S_IRWXO;
882 #endif /* LDAP_PF_LOCAL || SLAP_X_LISTENER_MOD */
884 ldap_free_urldesc( lud );
889 /* If we got more than one address returned, we need to make space
890 * for it in the slap_listeners array.
892 for ( num=0; sal[num]; num++ );
895 slap_listeners = ch_realloc( slap_listeners, (*listeners + 1) * sizeof(Listener *) );
899 while ( *sal != NULL ) {
901 switch( (*sal)->sa_family ) {
919 #ifdef LDAP_CONNECTIONLESS
920 if( l.sl_is_udp ) socktype = SOCK_DGRAM;
922 l.sl_sd = socket( (*sal)->sa_family, socktype, 0);
923 if ( l.sl_sd == AC_SOCKET_INVALID ) {
924 int err = sock_errno();
925 Debug( LDAP_DEBUG_ANY,
926 "daemon: %s socket() failed errno=%d (%s)\n",
927 af, err, sock_errstr(err) );
932 if ( l.sl_sd >= dtblsize ) {
933 Debug( LDAP_DEBUG_ANY,
934 "daemon: listener descriptor %ld is too great %ld\n",
935 (long) l.sl_sd, (long) dtblsize, 0 );
936 tcp_close( l.sl_sd );
942 if ( (*sal)->sa_family == AF_LOCAL ) {
943 unlink ( ((struct sockaddr_un *)*sal)->sun_path );
948 /* enable address reuse */
950 rc = setsockopt( l.sl_sd, SOL_SOCKET, SO_REUSEADDR,
951 (char *) &tmp, sizeof(tmp) );
952 if ( rc == AC_SOCKET_ERROR ) {
953 int err = sock_errno();
954 Debug( LDAP_DEBUG_ANY,
955 "slapd(%ld): setsockopt(SO_REUSEADDR) failed errno=%d (%s)\n",
956 (long) l.sl_sd, err, sock_errstr(err) );
961 switch( (*sal)->sa_family ) {
963 addrlen = sizeof(struct sockaddr_in);
968 /* Try to use IPv6 sockets for IPv6 only */
970 rc = setsockopt( l.sl_sd, IPPROTO_IPV6, IPV6_V6ONLY,
971 (char *) &tmp, sizeof(tmp) );
972 if ( rc == AC_SOCKET_ERROR ) {
973 int err = sock_errno();
974 Debug( LDAP_DEBUG_ANY,
975 "slapd(%ld): setsockopt(IPV6_V6ONLY) failed errno=%d (%s)\n",
976 (long) l.sl_sd, err, sock_errstr(err) );
979 addrlen = sizeof(struct sockaddr_in6);
987 setsockopt(l.sl_sd, 0, LOCAL_CREDS, &one, sizeof one);
990 addrlen = sizeof(struct sockaddr_un);
995 if (bind(l.sl_sd, *sal, addrlen)) {
997 Debug( LDAP_DEBUG_ANY, "daemon: bind(%ld) failed errno=%d (%s)\n",
998 (long) l.sl_sd, err, sock_errstr(err) );
999 tcp_close( l.sl_sd );
1004 switch ( (*sal)->sa_family ) {
1005 #ifdef LDAP_PF_LOCAL
1007 char *addr = ((struct sockaddr_un *)*sal)->sun_path;
1008 l.sl_name.bv_len = strlen(addr) + sizeof("PATH=") - 1;
1009 l.sl_name.bv_val = ber_memalloc( l.sl_name.bv_len + 1 );
1010 snprintf( l.sl_name.bv_val, l.sl_name.bv_len + 1,
1013 #endif /* LDAP_PF_LOCAL */
1017 #if defined( HAVE_GETADDRINFO ) && defined( HAVE_INET_NTOP )
1018 char addr[INET_ADDRSTRLEN];
1019 inet_ntop( AF_INET, &((struct sockaddr_in *)*sal)->sin_addr,
1020 addr, sizeof(addr) );
1023 s = inet_ntoa( ((struct sockaddr_in *) *sal)->sin_addr );
1025 port = ntohs( ((struct sockaddr_in *)*sal) ->sin_port );
1026 l.sl_name.bv_val = ber_memalloc( sizeof("IP=255.255.255.255:65535") );
1027 snprintf( l.sl_name.bv_val, sizeof("IP=255.255.255.255:65535"),
1029 s != NULL ? s : SLAP_STRING_UNKNOWN, port );
1030 l.sl_name.bv_len = strlen( l.sl_name.bv_val );
1033 #ifdef LDAP_PF_INET6
1035 char addr[INET6_ADDRSTRLEN];
1036 inet_ntop( AF_INET6, &((struct sockaddr_in6 *)*sal)->sin6_addr,
1038 port = ntohs( ((struct sockaddr_in6 *)*sal)->sin6_port );
1039 l.sl_name.bv_len = strlen(addr) + sizeof("IP= 65535");
1040 l.sl_name.bv_val = ber_memalloc( l.sl_name.bv_len );
1041 snprintf( l.sl_name.bv_val, l.sl_name.bv_len, "IP=%s %d",
1043 l.sl_name.bv_len = strlen( l.sl_name.bv_val );
1045 #endif /* LDAP_PF_INET6 */
1048 Debug( LDAP_DEBUG_ANY, "daemon: unsupported address family (%d)\n",
1049 (int) (*sal)->sa_family, 0, 0 );
1053 AC_MEMCPY(&l.sl_sa, *sal, addrlen);
1054 ber_str2bv( url, 0, 1, &l.sl_url);
1055 li = ch_malloc( sizeof( Listener ) );
1057 slap_listeners[*cur] = li;
1061 } /* while ( *sal != NULL ) */
1063 slap_free_listener_addresses(psal);
1065 if ( l.sl_url.bv_val == NULL )
1067 Debug( LDAP_DEBUG_TRACE,
1068 "slap_open_listener: failed on %s\n", url, 0, 0 );
1072 Debug( LDAP_DEBUG_TRACE, "daemon: initialized %s\n",
1073 l.sl_url.bv_val, 0, 0 );
1077 static int sockinit(void);
1078 static int sockdestroy(void);
1080 int slapd_daemon_init( const char *urls )
1085 Debug( LDAP_DEBUG_ARGS, "daemon_init: %s\n",
1086 urls ? urls : "<null>", 0, 0 );
1087 if( (rc = sockinit()) != 0 ) {
1092 dtblsize = sysconf( _SC_OPEN_MAX );
1093 #elif HAVE_GETDTABLESIZE
1094 dtblsize = getdtablesize();
1096 dtblsize = FD_SETSIZE;
1099 /* open a pipe (or something equivalent connected to itself).
1100 * we write a byte on this fd whenever we catch a signal. The main
1101 * loop will be select'ing on this socket, and will wake up when
1102 * this byte arrives.
1104 if( (rc = lutil_pair( wake_sds )) < 0 ) {
1105 Debug( LDAP_DEBUG_ANY,
1106 "daemon: lutil_pair() failed rc=%d\n", rc, 0, 0 );
1112 if( urls == NULL ) {
1116 u = ldap_str2charray( urls, " " );
1118 if( u == NULL || u[0] == NULL ) {
1119 Debug( LDAP_DEBUG_ANY, "daemon_init: no urls (%s) provided.\n",
1124 for( i=0; u[i] != NULL; i++ ) {
1125 Debug( LDAP_DEBUG_TRACE, "daemon_init: listen on %s\n",
1130 Debug( LDAP_DEBUG_ANY, "daemon_init: no listeners to open (%s)\n",
1132 ldap_charray_free( u );
1136 Debug( LDAP_DEBUG_TRACE, "daemon_init: %d listeners to open...\n",
1138 slap_listeners = ch_malloc( (i+1)*sizeof(Listener *) );
1140 for(n = 0, j = 0; u[n]; n++ ) {
1141 if ( slap_open_listener( u[n], &i, &j ) ) {
1142 ldap_charray_free( u );
1146 slap_listeners[j] = NULL;
1148 Debug( LDAP_DEBUG_TRACE, "daemon_init: %d listeners opened\n",
1152 if( slapd_register_slp ) {
1153 slapd_slp_init( urls );
1158 ldap_charray_free( u );
1159 ldap_pvt_thread_mutex_init( &slap_daemon.sd_mutex );
1165 slapd_daemon_destroy(void)
1167 connections_destroy();
1168 tcp_close( wake_sds[1] );
1169 tcp_close( wake_sds[0] );
1173 if( slapd_register_slp ) {
1190 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1191 if ( slap_listeners[l]->sl_sd != AC_SOCKET_INVALID ) {
1193 slapd_remove( slap_listeners[l]->sl_sd, 0, 0 );
1194 #ifdef LDAP_PF_LOCAL
1195 if ( slap_listeners[l]->sl_sa.sa_addr.sa_family == AF_LOCAL ) {
1196 unlink( slap_listeners[l]->sl_sa.sa_un_addr.sun_path );
1198 #endif /* LDAP_PF_LOCAL */
1199 slapd_close( slap_listeners[l]->sl_sd );
1201 if ( slap_listeners[l]->sl_url.bv_val )
1202 ber_memfree( slap_listeners[l]->sl_url.bv_val );
1203 if ( slap_listeners[l]->sl_name.bv_val )
1204 ber_memfree( slap_listeners[l]->sl_name.bv_val );
1205 free ( slap_listeners[l] );
1206 slap_listeners[l] = NULL;
1211 slapd_handle_listener(
1218 socklen_t len = sizeof(from);
1221 struct berval authid = BER_BVNULL;
1222 #ifdef SLAPD_RLOOKUPS
1223 char hbuf[NI_MAXHOST];
1226 char *dnsname = NULL;
1227 char *peeraddr = NULL;
1228 #ifdef LDAP_PF_LOCAL
1229 char peername[MAXPATHLEN + sizeof("PATH=")];
1230 #elif defined(LDAP_PF_INET6)
1231 char peername[sizeof("IP=ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff 65535")];
1233 char peername[sizeof("IP=255.255.255.255:65336")];
1234 #endif /* LDAP_PF_LOCAL */
1238 #ifdef LDAP_CONNECTIONLESS
1239 if ( sl->sl_is_udp ) {
1240 /* The first time we receive a query, we set this
1241 * up as a "connection". It remains open for the life
1244 if ( sl->sl_is_udp < 2 ) {
1245 id = connection_init( sl->sl_sd, sl, "", "",
1246 CONN_IS_UDP, ssf, NULL );
1253 # ifdef LDAP_PF_LOCAL
1254 /* FIXME: apparently accept doesn't fill
1255 * the sun_path sun_path member */
1256 from.sa_un_addr.sun_path[0] = '\0';
1257 # endif /* LDAP_PF_LOCAL */
1259 s = accept( sl->sl_sd, (struct sockaddr *) &from, &len );
1260 if ( s == AC_SOCKET_INVALID ) {
1261 int err = sock_errno();
1272 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
1274 /* Stop listening until an existing session closes */
1276 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
1279 Debug( LDAP_DEBUG_ANY,
1280 "daemon: accept(%ld) failed errno=%d (%s)\n",
1281 (long) sl->sl_sd, err,
1283 ldap_pvt_thread_yield();
1287 #ifndef HAVE_WINSOCK
1288 /* make sure descriptor number isn't too great */
1289 if ( s >= dtblsize ) {
1290 Debug( LDAP_DEBUG_ANY,
1291 "daemon: %ld beyond descriptor table size %ld\n",
1292 (long) s, (long) dtblsize, 0 );
1295 ldap_pvt_thread_yield();
1301 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
1303 /* newly accepted stream should not be in any of the FD SETS */
1304 assert( SLAP_SOCK_NOT_ACTIVE( s ));
1306 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
1309 #if defined( SO_KEEPALIVE ) || defined( TCP_NODELAY )
1310 #ifdef LDAP_PF_LOCAL
1311 /* for IPv4 and IPv6 sockets only */
1312 if ( from.sa_addr.sa_family != AF_LOCAL )
1313 #endif /* LDAP_PF_LOCAL */
1318 /* enable keep alives */
1320 rc = setsockopt( s, SOL_SOCKET, SO_KEEPALIVE,
1321 (char *) &tmp, sizeof(tmp) );
1322 if ( rc == AC_SOCKET_ERROR ) {
1323 int err = sock_errno();
1324 Debug( LDAP_DEBUG_ANY,
1325 "slapd(%ld): setsockopt(SO_KEEPALIVE) failed "
1326 "errno=%d (%s)\n", (long) s, err, sock_errstr(err) );
1330 /* enable no delay */
1332 rc = setsockopt( s, IPPROTO_TCP, TCP_NODELAY,
1333 (char *)&tmp, sizeof(tmp) );
1334 if ( rc == AC_SOCKET_ERROR ) {
1335 int err = sock_errno();
1336 Debug( LDAP_DEBUG_ANY,
1337 "slapd(%ld): setsockopt(TCP_NODELAY) failed "
1338 "errno=%d (%s)\n", (long) s, err, sock_errstr(err) );
1344 Debug( LDAP_DEBUG_CONNS, "daemon: new connection on %ld\n",
1346 switch ( from.sa_addr.sa_family ) {
1347 # ifdef LDAP_PF_LOCAL
1349 /* FIXME: apparently accept doesn't fill
1350 * the sun_path sun_path member */
1351 if ( from.sa_un_addr.sun_path[0] == '\0' ) {
1352 AC_MEMCPY( from.sa_un_addr.sun_path,
1353 sl->sl_sa.sa_un_addr.sun_path,
1354 sizeof( from.sa_un_addr.sun_path ) );
1357 sprintf( peername, "PATH=%s", from.sa_un_addr.sun_path );
1363 if( getpeereid( s, &uid, &gid ) == 0 ) {
1364 authid.bv_val = ch_malloc(
1365 STRLENOF( "gidNumber=4294967295+uidNumber=4294967295,"
1366 "cn=peercred,cn=external,cn=auth" ) + 1 );
1367 authid.bv_len = sprintf( authid.bv_val,
1368 "gidNumber=%d+uidNumber=%d,"
1369 "cn=peercred,cn=external,cn=auth",
1370 (int) gid, (int) uid );
1371 assert( authid.bv_len <=
1372 STRLENOF( "gidNumber=4294967295+uidNumber=4294967295,"
1373 "cn=peercred,cn=external,cn=auth" ) );
1378 #endif /* LDAP_PF_LOCAL */
1380 # ifdef LDAP_PF_INET6
1382 if ( IN6_IS_ADDR_V4MAPPED(&from.sa_in6_addr.sin6_addr) ) {
1383 peeraddr = inet_ntoa( *((struct in_addr *)
1384 &from.sa_in6_addr.sin6_addr.s6_addr[12]) );
1385 sprintf( peername, "IP=%s:%d",
1386 peeraddr != NULL ? peeraddr : SLAP_STRING_UNKNOWN,
1387 (unsigned) ntohs( from.sa_in6_addr.sin6_port ) );
1389 char addr[INET6_ADDRSTRLEN];
1391 peeraddr = (char *) inet_ntop( AF_INET6,
1392 &from.sa_in6_addr.sin6_addr,
1393 addr, sizeof addr );
1394 sprintf( peername, "IP=%s %d",
1395 peeraddr != NULL ? peeraddr : SLAP_STRING_UNKNOWN,
1396 (unsigned) ntohs( from.sa_in6_addr.sin6_port ) );
1399 # endif /* LDAP_PF_INET6 */
1402 peeraddr = inet_ntoa( from.sa_in_addr.sin_addr );
1403 sprintf( peername, "IP=%s:%d",
1404 peeraddr != NULL ? peeraddr : SLAP_STRING_UNKNOWN,
1405 (unsigned) ntohs( from.sa_in_addr.sin_port ) );
1413 if ( ( from.sa_addr.sa_family == AF_INET )
1414 #ifdef LDAP_PF_INET6
1415 || ( from.sa_addr.sa_family == AF_INET6 )
1418 #ifdef SLAPD_RLOOKUPS
1419 if ( use_reverse_lookup ) {
1421 if (ldap_pvt_get_hname( (const struct sockaddr *)&from, len, hbuf,
1422 sizeof(hbuf), &herr ) == 0) {
1423 ldap_pvt_str2lower( hbuf );
1429 #endif /* SLAPD_RLOOKUPS */
1432 if ( !hosts_ctl("slapd",
1433 dnsname != NULL ? dnsname : SLAP_STRING_UNKNOWN,
1434 peeraddr != NULL ? peeraddr : SLAP_STRING_UNKNOWN,
1435 SLAP_STRING_UNKNOWN ))
1438 Statslog( LDAP_DEBUG_STATS,
1439 "fd=%ld DENIED from %s (%s)\n",
1441 dnsname != NULL ? dnsname : SLAP_STRING_UNKNOWN,
1442 peeraddr != NULL ? peeraddr : SLAP_STRING_UNKNOWN,
1447 #endif /* HAVE_TCPD */
1450 id = connection_init(s, sl,
1451 dnsname != NULL ? dnsname : SLAP_STRING_UNKNOWN,
1454 sl->sl_is_tls ? CONN_IS_TLS : 0,
1459 authid.bv_val ? &authid : NULL );
1461 if( authid.bv_val ) ch_free(authid.bv_val);
1464 Debug( LDAP_DEBUG_ANY,
1465 "daemon: connection_init(%ld, %s, %s) failed.\n",
1466 (long) s, peername, sl->sl_name.bv_val );
1471 Statslog( LDAP_DEBUG_STATS,
1472 "conn=%ld fd=%ld ACCEPT from %s (%s)\n",
1473 id, (long) s, peername, sl->sl_name.bv_val,
1476 slapd_add( s, 1, NULL );
1486 time_t last_idle_check = 0;
1487 struct timeval idle;
1490 #define SLAPD_IDLE_CHECK_LIMIT 4
1492 if ( global_idletimeout > 0 ) {
1493 last_idle_check = slap_get_time();
1494 /* Set the select timeout.
1495 * Don't just truncate, preserve the fractions of
1496 * seconds to prevent sleeping for zero time.
1498 idle.tv_sec = global_idletimeout/SLAPD_IDLE_CHECK_LIMIT;
1499 idle.tv_usec = global_idletimeout - idle.tv_sec * SLAPD_IDLE_CHECK_LIMIT;
1500 idle.tv_usec *= 1000000 / SLAPD_IDLE_CHECK_LIMIT;
1506 slapd_add( wake_sds[0], 0, NULL );
1508 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1509 if ( slap_listeners[l]->sl_sd == AC_SOCKET_INVALID )
1511 #ifdef LDAP_CONNECTIONLESS
1512 /* Since this is connectionless, the data port is the
1513 * listening port. The listen() and accept() calls
1516 if ( slap_listeners[l]->sl_is_udp ) {
1517 slapd_add( slap_listeners[l]->sl_sd, 1, slap_listeners[l] );
1522 if ( listen( slap_listeners[l]->sl_sd, SLAPD_LISTEN_BACKLOG ) == -1 ) {
1523 int err = sock_errno();
1525 #ifdef LDAP_PF_INET6
1526 /* If error is EADDRINUSE, we are trying to listen to INADDR_ANY and
1527 * we are already listening to in6addr_any, then we want to ignore
1528 * this and continue.
1530 if ( err == EADDRINUSE ) {
1532 struct sockaddr_in sa = slap_listeners[l]->sl_sa.sa_in_addr;
1533 struct sockaddr_in6 sa6;
1535 if ( sa.sin_family == AF_INET &&
1536 sa.sin_addr.s_addr == htonl(INADDR_ANY) ) {
1537 for ( i = 0 ; i < l; i++ ) {
1538 sa6 = slap_listeners[i]->sl_sa.sa_in6_addr;
1539 if ( sa6.sin6_family == AF_INET6 &&
1540 !memcmp( &sa6.sin6_addr, &in6addr_any, sizeof(struct in6_addr) ) )
1545 /* We are already listening to in6addr_any */
1546 Debug( LDAP_DEBUG_CONNS,
1547 "daemon: Attempt to listen to 0.0.0.0 failed, already listening on ::, assuming IPv4 included\n",
1549 slapd_close( slap_listeners[l]->sl_sd );
1550 slap_listeners[l]->sl_sd = AC_SOCKET_INVALID;
1556 Debug( LDAP_DEBUG_ANY,
1557 "daemon: listen(%s, 5) failed errno=%d (%s)\n",
1558 slap_listeners[l]->sl_url.bv_val, err,
1560 return( (void*)-1 );
1563 slapd_add( slap_listeners[l]->sl_sd, 0, slap_listeners[l] );
1566 #ifdef HAVE_NT_SERVICE_MANAGER
1567 if ( started_event != NULL ) {
1568 ldap_pvt_thread_cond_signal( &started_event );
1571 /* initialization complete. Here comes the loop. */
1573 while ( !slapd_shutdown ) {
1578 #if SLAP_EVENTS_ARE_INDEXED
1579 ber_socket_t nrfds, nwfds;
1581 #define SLAPD_EBADF_LIMIT 16
1588 struct timeval *tvp;
1590 struct timeval *cat;
1593 now = slap_get_time();
1595 if( ( global_idletimeout > 0 ) &&
1596 difftime( last_idle_check +
1597 global_idletimeout/SLAPD_IDLE_CHECK_LIMIT, now ) < 0 ) {
1598 connections_timeout_idle( now );
1599 last_idle_check = now;
1604 if( slapd_gentle_shutdown ) {
1605 ber_socket_t active;
1607 if( slapd_gentle_shutdown == 1 ) {
1608 Debug( LDAP_DEBUG_ANY, "slapd gentle shutdown\n", 0, 0, 0 );
1609 close_listeners( 1 );
1610 frontendDB->be_restrictops |= SLAP_RESTRICT_OP_WRITES;
1611 slapd_gentle_shutdown = 2;
1614 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
1615 active = slap_daemon.sd_nactives;
1616 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
1626 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
1628 nwriters = slap_daemon.sd_nwriters;
1631 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1632 if ( slap_listeners[l]->sl_sd == AC_SOCKET_INVALID )
1634 if ( slap_listeners[l]->sl_is_mute )
1635 SLAP_SOCK_SET_MUTE( slap_listeners[l]->sl_sd );
1637 if ( SLAP_SOCK_IS_MUTE( slap_listeners[l]->sl_sd ))
1638 SLAP_SOCK_CLR_MUTE( slap_listeners[l]->sl_sd );
1641 nfds = SLAP_EVENT_MAX;
1643 if ( global_idletimeout && slap_daemon.sd_nactives )
1646 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
1649 #if defined(HAVE_YIELDING_SELECT) || defined(NO_THREADS)
1650 && ( tv.tv_sec || tv.tv_usec )
1657 ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
1658 rtask = ldap_pvt_runqueue_next_sched( &slapd_rq, &cat );
1659 while ( cat && cat->tv_sec && cat->tv_sec <= now ) {
1660 if ( ldap_pvt_runqueue_isrunning( &slapd_rq, rtask )) {
1661 ldap_pvt_runqueue_resched( &slapd_rq, rtask, 0 );
1663 ldap_pvt_runqueue_runtask( &slapd_rq, rtask );
1664 ldap_pvt_runqueue_resched( &slapd_rq, rtask, 0 );
1665 ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
1666 ldap_pvt_thread_pool_submit( &connection_pool,
1667 rtask->routine, (void *) rtask );
1668 ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
1670 rtask = ldap_pvt_runqueue_next_sched( &slapd_rq, &cat );
1672 ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
1674 if ( cat && cat->tv_sec ) {
1675 time_t diff = difftime( cat->tv_sec, now );
1678 if ( tvp == NULL || diff < tv.tv_sec ) {
1685 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1686 if ( slap_listeners[l]->sl_sd == AC_SOCKET_INVALID ||
1687 slap_listeners[l]->sl_is_mute )
1690 Debug( LDAP_DEBUG_CONNS,
1691 "daemon: select: listen=%d active_threads=%d tvp=%s\n",
1692 slap_listeners[l]->sl_sd, at,
1693 tvp == NULL ? "NULL" : "zero" );
1696 switch(ns = SLAP_EVENT_WAIT(tvp))
1698 case -1: { /* failure - try again */
1699 int err = sock_errno();
1703 /* you'd think this would be EBADF */
1704 || err == WSAENOTSOCK
1707 if (++ebadf < SLAPD_EBADF_LIMIT)
1711 if( err != EINTR ) {
1712 Debug( LDAP_DEBUG_CONNS,
1713 "daemon: select failed (%d): %s\n",
1714 err, sock_errstr(err), 0 );
1720 case 0: /* timeout - let threads run */
1722 #ifndef HAVE_YIELDING_SELECT
1723 Debug( LDAP_DEBUG_CONNS, "daemon: select timeout - yielding\n",
1726 ldap_pvt_thread_yield();
1730 default: /* something happened - deal with it */
1731 if( slapd_shutdown ) continue;
1734 Debug( LDAP_DEBUG_CONNS, "daemon: activity on %d descriptors\n",
1739 #if SLAP_EVENTS_ARE_INDEXED
1740 if ( SLAP_EVENT_IS_READ( wake_sds[0] )) {
1742 tcp_read( wake_sds[0], c, sizeof(c) );
1745 SLAP_EVENT_CLR_READ( wake_sds[0] );
1749 /* The event slot equals the descriptor number - this is
1750 * true for Unix select and poll. We treat Windows select
1751 * like this too, even though it's a kludge.
1753 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1756 if ( ns <= 0 ) break;
1758 if ( slap_listeners[l]->sl_sd == AC_SOCKET_INVALID )
1761 if ( !SLAP_EVENT_IS_READ( slap_listeners[l]->sl_sd ))
1764 rc = slapd_handle_listener(slap_listeners[l]);
1766 #ifdef LDAP_CONNECTIONLESS
1767 /* This is a UDP session, let the data loop process it */
1773 /* Don't need to look at this in the data loops */
1774 SLAP_EVENT_CLR_READ( slap_listeners[l]->sl_sd );
1775 SLAP_EVENT_CLR_WRITE( slap_listeners[l]->sl_sd );
1778 /* bypass the following tests if no descriptors left */
1780 #ifndef HAVE_YIELDING_SELECT
1781 ldap_pvt_thread_yield();
1786 Debug( LDAP_DEBUG_CONNS, "daemon: activity on:", 0, 0, 0 );
1788 nrfds = readfds.fd_count;
1789 nwfds = writefds.fd_count;
1790 for ( i = 0; i < readfds.fd_count; i++ ) {
1791 Debug( LDAP_DEBUG_CONNS, " %d%s",
1792 readfds.fd_array[i], "r", 0 );
1794 for ( i = 0; i < writefds.fd_count; i++ ) {
1795 Debug( LDAP_DEBUG_CONNS, " %d%s",
1796 writefds.fd_array[i], "w", 0 );
1802 for ( i = 0; i < nfds; i++ ) {
1805 r = SLAP_EVENT_IS_READ( i );
1806 /* writefds was not initialized if nwriters was zero */
1807 w = nwriters ? SLAP_EVENT_IS_WRITE( i ) : 0;
1809 Debug( LDAP_DEBUG_CONNS, " %d%s%s", i,
1810 r ? "r" : "", w ? "w" : "" );
1820 if ( ns <= 0 ) break;
1823 Debug( LDAP_DEBUG_CONNS, "\n", 0, 0, 0 );
1826 /* loop through the writers */
1827 for ( i = 0; nwfds > 0; i++ )
1831 wd = writefds.fd_array[i];
1833 if( ! SLAP_EVENT_IS_WRITE( i ) ) {
1840 Debug( LDAP_DEBUG_CONNS,
1841 "daemon: write active on %d\n",
1844 * NOTE: it is possible that the connection was closed
1845 * and that the stream is now inactive.
1846 * connection_write() must valid the stream is still
1850 if ( connection_write( wd ) < 0 ) {
1851 if ( SLAP_EVENT_IS_READ( wd )) {
1852 SLAP_EVENT_CLR_READ( (unsigned) wd );
1857 SLAP_EVENT_CLR_WRITE( wd );
1860 for ( i = 0; nrfds > 0; i++ )
1864 rd = readfds.fd_array[i];
1866 if( ! SLAP_EVENT_IS_READ( i ) ) {
1873 Debug ( LDAP_DEBUG_CONNS,
1874 "daemon: read activity on %d\n", rd, 0, 0 );
1876 * NOTE: it is possible that the connection was closed
1877 * and that the stream is now inactive.
1878 * connection_read() must valid the stream is still
1882 if ( connection_read( rd ) < 0 ) {
1886 #else /* !SLAP_EVENTS_ARE_INDEXED */
1888 /* The events are returned in an arbitrary list. This is true
1889 * for /dev/poll, epoll and kqueue. In order to prioritize things
1890 * so that we can handle wake_sds first, listeners second, and then
1891 * all other connections last (as we do for select), we would need
1892 * to use multiple event handles and cascade them.
1894 * That seems like a bit of hassle. So the wake_sds check has been
1895 * skipped. For epoll and kqueue we can associate arbitrary data with
1896 * an event, so we could use pointers to the listener structure
1897 * instead of just the file descriptor. For /dev/poll we have to
1898 * search the listeners array for a matching descriptor.
1900 /* if waking is set and we woke up, we'll read whatever
1905 tcp_read( wake_sds[0], c, sizeof(c) );
1912 Debug( LDAP_DEBUG_CONNS, "daemon: activity on:", 0, 0, 0 );
1914 for (i=0; i<ns; i++) {
1917 if ( SLAP_EVENT_IS_LISTENER(i)
1918 #ifdef LDAP_CONNECTIONLESS
1919 && !((SLAP_EVENT_LISTENER(i))->sl_is_udp)
1923 /* Don't log internal wake events */
1924 if ( SLAP_EVENT_FD( i ) == wake_sds[0] )
1927 r = SLAP_EVENT_IS_READ( i );
1928 w = SLAP_EVENT_IS_WRITE( i );
1930 Debug( LDAP_DEBUG_CONNS, " %d%s%s", SLAP_EVENT_FD(i),
1931 r ? "r" : "", w ? "w" : "" );
1935 for (i=0; i<ns; i++) {
1938 if ( SLAP_EVENT_IS_LISTENER(i) ) {
1939 rc = slapd_handle_listener( SLAP_EVENT_LISTENER( i ));
1941 /* If we found a regular listener, rc is now zero, and we
1942 * can skip the data portion. But if it was a UDP listener
1943 * then rc is still 1, and we want to handle the data.
1946 fd = SLAP_EVENT_FD( i );
1948 /* Ignore wake events, they were handled above */
1949 if ( fd == wake_sds[0] )
1952 if( SLAP_EVENT_IS_WRITE( i ) ) {
1953 Debug( LDAP_DEBUG_CONNS,
1954 "daemon: write active on %d\n",
1957 * NOTE: it is possible that the connection was closed
1958 * and that the stream is now inactive.
1959 * connection_write() must valid the stream is still
1963 if ( connection_write( fd ) < 0 ) {
1968 if( SLAP_EVENT_IS_READ( i ) ) {
1969 Debug( LDAP_DEBUG_CONNS,
1970 "daemon: read active on %d\n",
1973 * NOTE: it is possible that the connection was closed
1974 * and that the stream is now inactive.
1975 * connection_read() must valid the stream is still
1979 if ( connection_read( fd ) < 0 ) {
1985 #endif /* SLAP_EVENTS_ARE_INDEXED */
1987 #ifndef HAVE_YIELDING_SELECT
1988 ldap_pvt_thread_yield();
1992 if( slapd_shutdown == 1 ) {
1993 Debug( LDAP_DEBUG_ANY,
1994 "daemon: shutdown requested and initiated.\n",
1997 } else if ( slapd_shutdown == 2 ) {
1998 #ifdef HAVE_NT_SERVICE_MANAGER
1999 Debug( LDAP_DEBUG_ANY,
2000 "daemon: shutdown initiated by Service Manager.\n",
2002 #else /* !HAVE_NT_SERVICE_MANAGER */
2003 Debug( LDAP_DEBUG_ANY,
2004 "daemon: abnormal condition, shutdown initiated.\n",
2006 #endif /* !HAVE_NT_SERVICE_MANAGER */
2008 Debug( LDAP_DEBUG_ANY,
2009 "daemon: no active streams, shutdown initiated.\n",
2013 if( slapd_gentle_shutdown != 2 ) {
2014 close_listeners ( 0 );
2017 if( !slapd_gentle_shutdown ) {
2018 slapd_abrupt_shutdown = 1;
2019 connections_shutdown();
2022 Debug( LDAP_DEBUG_ANY,
2023 "slapd shutdown: waiting for %d threads to terminate\n",
2024 ldap_pvt_thread_pool_backload(&connection_pool), 0, 0 );
2025 ldap_pvt_thread_pool_destroy(&connection_pool, 1);
2027 free ( slap_listeners );
2028 slap_listeners = NULL;
2034 int slapd_daemon( void )
2040 #define SLAPD_LISTENER_THREAD 1
2041 #if defined( SLAPD_LISTENER_THREAD )
2043 ldap_pvt_thread_t listener_tid;
2045 /* listener as a separate THREAD */
2046 rc = ldap_pvt_thread_create( &listener_tid,
2047 0, slapd_daemon_task, NULL );
2050 Debug( LDAP_DEBUG_ANY,
2051 "listener ldap_pvt_thread_create failed (%d)\n", rc, 0, 0 );
2055 /* wait for the listener thread to complete */
2056 ldap_pvt_thread_join( listener_tid, (void *) NULL );
2059 /* experimental code */
2060 slapd_daemon_task( NULL );
2067 static int sockinit(void)
2069 #if defined( HAVE_WINSOCK2 )
2070 WORD wVersionRequested;
2074 wVersionRequested = MAKEWORD( 2, 0 );
2076 err = WSAStartup( wVersionRequested, &wsaData );
2078 /* Tell the user that we couldn't find a usable */
2083 /* Confirm that the WinSock DLL supports 2.0.*/
2084 /* Note that if the DLL supports versions greater */
2085 /* than 2.0 in addition to 2.0, it will still return */
2086 /* 2.0 in wVersion since that is the version we */
2089 if ( LOBYTE( wsaData.wVersion ) != 2 ||
2090 HIBYTE( wsaData.wVersion ) != 0 )
2092 /* Tell the user that we couldn't find a usable */
2098 /* The WinSock DLL is acceptable. Proceed. */
2099 #elif defined( HAVE_WINSOCK )
2101 if ( WSAStartup( 0x0101, &wsaData ) != 0 ) {
2108 static int sockdestroy(void)
2110 #if defined( HAVE_WINSOCK2 ) || defined( HAVE_WINSOCK )
2117 slap_sig_shutdown( int sig )
2120 Debug(LDAP_DEBUG_TRACE, "slap_sig_shutdown: signal %d\n", sig, 0, 0);
2124 * If the NT Service Manager is controlling the server, we don't
2125 * want SIGBREAK to kill the server. For some strange reason,
2126 * SIGBREAK is generated when a user logs out.
2129 #if HAVE_NT_SERVICE_MANAGER && SIGBREAK
2130 if (is_NT_Service && sig == SIGBREAK)
2135 if (sig == SIGHUP && global_gentlehup && slapd_gentle_shutdown == 0)
2136 slapd_gentle_shutdown = 1;
2142 /* reinstall self */
2143 (void) SIGNAL_REINSTALL( sig, slap_sig_shutdown );
2147 slap_sig_wake( int sig )
2151 /* reinstall self */
2152 (void) SIGNAL_REINSTALL( sig, slap_sig_wake );
2156 void slapd_add_internal(ber_socket_t s, int isactive) {
2157 slapd_add(s, isactive, NULL);
2160 Listener ** slapd_get_listeners(void) {
2161 return slap_listeners;
2164 void slap_wake_listener()