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_malloc(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) )
238 #define CHK_SETSIZE \
239 if (dtblsize > FD_SETSIZE) dtblsize = FD_SETSIZE
244 #define SLAP_SOCK_SET_INIT \
246 FD_ZERO(&slap_daemon.sd_readers); \
247 FD_ZERO(&slap_daemon.sd_writers)
249 #define SLAP_SOCK_IS_ACTIVE(fd) FD_ISSET(fd, &slap_daemon.sd_actives)
251 #define SLAP_SOCK_IS_READ(fd) FD_ISSET(fd, &slap_daemon.sd_readers)
252 #define SLAP_SOCK_IS_WRITE(fd) FD_ISSET(fd, &slap_daemon.sd_writers)
254 #define SLAP_SOCK_NOT_ACTIVE(fd) (!SLAP_SOCK_IS_ACTIVE(fd) && \
255 !SLAP_SOCK_IS_READ(fd) && !SLAP_SOCK_IS_WRITE(fd))
258 #define SLAP_SOCK_SET_READ(fd) do { \
259 if (!SLAP_SOCK_IS_READ(fd)) {FD_SET(fd, &slap_daemon.sd_readers);} \
261 #define SLAP_SOCK_SET_WRITE(fd) do { \
262 if (!SLAP_SOCK_IS_WRITE(fd)) {FD_SET(fd, &slap_daemon.sd_writers);} \
265 #define SLAP_ADDTEST(s)
266 #define SLAP_EVENT_MAX dtblsize
268 #define SLAP_SOCK_SET_READ(fd) FD_SET(fd, &slap_daemon.sd_readers)
269 #define SLAP_SOCK_SET_WRITE(fd) FD_SET(fd, &slap_daemon.sd_writers)
271 #define SLAP_EVENT_MAX slap_daemon.sd_nfds
272 #define SLAP_ADDTEST(s) if (s >= slap_daemon.sd_nfds) slap_daemon.sd_nfds = s+1
275 #define SLAP_SOCK_CLR_READ(fd) FD_CLR(fd, &slap_daemon.sd_readers)
276 #define SLAP_SOCK_CLR_WRITE(fd) FD_CLR(fd, &slap_daemon.sd_writers)
278 #define SLAP_ADD_SOCK(s, l) do { \
280 FD_SET(s, &slap_daemon.sd_actives); \
281 FD_SET(s, &slap_daemon.sd_readers); \
284 #define SLAP_DEL_SOCK(s) do { \
285 FD_CLR(s, &slap_daemon.sd_actives); \
286 FD_CLR(s, &slap_daemon.sd_readers); \
287 FD_CLR(s, &slap_daemon.sd_writers); \
290 #define SLAP_EVENT_IS_READ(fd) FD_ISSET(fd, &readfds)
291 #define SLAP_EVENT_IS_WRITE(fd) FD_ISSET(fd, &writefds)
293 #define SLAP_EVENT_CLR_READ(fd) FD_CLR(fd, &readfds)
294 #define SLAP_EVENT_CLR_WRITE(fd) FD_CLR(fd, &writefds)
296 #define SLAP_EVENT_WAIT(tvp) \
297 select( SLAP_EVENT_MAX, &readfds, \
298 nwriters > 0 ? &writefds : NULL, NULL, tvp )
300 #define SLAP_SOCK_SET_MUTE(s) FD_CLR(s, &readfds)
301 #define SLAP_SOCK_CLR_MUTE(s) FD_SET(s, &readfds)
302 #define SLAP_SOCK_IS_MUTE(s) (!FD_ISSET(s, &readfds))
309 * SLP related functions
313 #define LDAP_SRVTYPE_PREFIX "service:ldap://"
314 #define LDAPS_SRVTYPE_PREFIX "service:ldaps://"
315 static char** slapd_srvurls = NULL;
316 static SLPHandle slapd_hslp = 0;
317 int slapd_register_slp = 0;
319 void slapd_slp_init( const char* urls ) {
322 slapd_srvurls = ldap_str2charray( urls, " " );
324 if( slapd_srvurls == NULL ) return;
326 /* find and expand INADDR_ANY URLs */
327 for( i=0; slapd_srvurls[i] != NULL; i++ ) {
328 if( strcmp( slapd_srvurls[i], "ldap:///" ) == 0) {
329 char *host = ldap_pvt_get_fqdn( NULL );
330 if ( host != NULL ) {
331 slapd_srvurls[i] = (char *) ch_realloc( slapd_srvurls[i],
333 sizeof( LDAP_SRVTYPE_PREFIX ) );
334 strcpy( lutil_strcopy(slapd_srvurls[i],
335 LDAP_SRVTYPE_PREFIX ), host );
340 } else if ( strcmp( slapd_srvurls[i], "ldaps:///" ) == 0) {
341 char *host = ldap_pvt_get_fqdn( NULL );
342 if ( host != NULL ) {
343 slapd_srvurls[i] = (char *) ch_realloc( slapd_srvurls[i],
345 sizeof( LDAPS_SRVTYPE_PREFIX ) );
346 strcpy( lutil_strcopy(slapd_srvurls[i],
347 LDAPS_SRVTYPE_PREFIX ), host );
354 /* open the SLP handle */
355 SLPOpen( "en", 0, &slapd_hslp );
358 void slapd_slp_deinit() {
359 if( slapd_srvurls == NULL ) return;
361 ldap_charray_free( slapd_srvurls );
362 slapd_srvurls = NULL;
364 /* close the SLP handle */
365 SLPClose( slapd_hslp );
368 void slapd_slp_regreport(
376 void slapd_slp_reg() {
379 if( slapd_srvurls == NULL ) return;
381 for( i=0; slapd_srvurls[i] != NULL; i++ ) {
382 if( strncmp( slapd_srvurls[i], LDAP_SRVTYPE_PREFIX,
383 sizeof( LDAP_SRVTYPE_PREFIX ) - 1 ) == 0 ||
384 strncmp( slapd_srvurls[i], LDAPS_SRVTYPE_PREFIX,
385 sizeof( LDAPS_SRVTYPE_PREFIX ) - 1 ) == 0 )
389 SLP_LIFETIME_MAXIMUM,
399 void slapd_slp_dereg() {
402 if( slapd_srvurls == NULL ) return;
404 for( i=0; slapd_srvurls[i] != NULL; i++ ) {
405 SLPDereg( slapd_hslp,
411 #endif /* HAVE_SLP */
414 * Add a descriptor to daemon control
416 * If isactive, the descriptor is a live server session and is subject
417 * to idletimeout control. Otherwise, the descriptor is a passive
418 * listener or an outbound client session, and not subject to
419 * idletimeout. The underlying event handler may record the Listener
420 * argument to differentiate Listener's from real sessions.
422 static void slapd_add(ber_socket_t s, int isactive, Listener *sl) {
423 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
425 assert( SLAP_SOCK_NOT_ACTIVE(s) );
428 slap_daemon.sd_nactives++;
431 SLAP_ADD_SOCK(s, sl);
433 Debug( LDAP_DEBUG_CONNS, "daemon: added %ldr\n",
435 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
439 * Remove the descriptor from daemon control
441 void slapd_remove(ber_socket_t s, int wasactive, int wake) {
443 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
446 slap_daemon.sd_nactives--;
448 waswriter = SLAP_SOCK_IS_WRITE(s);
450 Debug( LDAP_DEBUG_CONNS, "daemon: removing %ld%s%s\n",
451 (long) s, SLAP_SOCK_IS_READ(s) ? "r" : "",
452 waswriter ? "w" : "" );
453 if ( waswriter ) slap_daemon.sd_nwriters--;
457 /* If we ran out of file descriptors, we dropped a listener from
458 * the select() loop. Now that we're removing a session from our
459 * control, we can try to resume a dropped listener to use.
463 for ( i = 0; slap_listeners[i] != NULL; i++ ) {
464 if ( slap_listeners[i]->sl_sd != AC_SOCKET_INVALID ) {
465 if ( slap_listeners[i]->sl_sd == s ) continue;
466 if ( slap_listeners[i]->sl_is_mute ) {
467 slap_listeners[i]->sl_is_mute = 0;
473 /* Walked the entire list without enabling anything; emfile
474 * counter is stale. Reset it.
476 if ( slap_listeners[i] == NULL )
479 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
480 WAKE_LISTENER(wake || slapd_gentle_shutdown == 2);
483 void slapd_clr_write(ber_socket_t s, int wake) {
484 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
486 assert( SLAP_SOCK_IS_ACTIVE( s ));
487 if ( SLAP_SOCK_IS_WRITE( s )) {
488 SLAP_SOCK_CLR_WRITE( s );
489 slap_daemon.sd_nwriters--;
492 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
496 void slapd_set_write(ber_socket_t s, int wake) {
497 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
499 assert( SLAP_SOCK_IS_ACTIVE( s ));
500 if ( !SLAP_SOCK_IS_WRITE( s )) {
501 SLAP_SOCK_SET_WRITE( s );
502 slap_daemon.sd_nwriters++;
505 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
509 void slapd_clr_read(ber_socket_t s, int wake) {
510 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
512 assert( SLAP_SOCK_IS_ACTIVE( s ));
513 SLAP_SOCK_CLR_READ( s );
515 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
519 void slapd_set_read(ber_socket_t s, int wake) {
520 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
522 assert( SLAP_SOCK_IS_ACTIVE( s ));
523 if (!SLAP_SOCK_IS_READ( s ))
524 SLAP_SOCK_SET_READ( s );
526 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
530 static void slapd_close(ber_socket_t s) {
531 Debug( LDAP_DEBUG_CONNS, "daemon: closing %ld\n",
536 static void slap_free_listener_addresses(struct sockaddr **sal)
538 struct sockaddr **sap;
544 for (sap = sal; *sap != NULL; sap++) {
551 #if defined(LDAP_PF_LOCAL) || defined(SLAP_X_LISTENER_MOD)
552 static int get_url_perms(
559 assert( exts != NULL );
560 assert( perms != NULL );
561 assert( crit != NULL );
564 for ( i = 0; exts[ i ]; i++ ) {
565 char *type = exts[ i ];
568 if ( type[ 0 ] == '!' ) {
573 if ( strncasecmp( type, LDAPI_MOD_URLEXT "=", sizeof(LDAPI_MOD_URLEXT "=") - 1 ) == 0 ) {
575 + ( sizeof(LDAPI_MOD_URLEXT "=") - 1 );
579 switch (strlen(value)) {
581 /* skip leading '0' */
582 if ( value[ 0 ] != '0' ) {
588 for ( j = 0; j < 3; j++) {
591 v = value[ j ] - '0';
593 if ( v < 0 || v > 7 ) {
602 for ( j = 1; j < 10; j++ ) {
603 static mode_t m[] = { 0,
604 S_IRUSR, S_IWUSR, S_IXUSR,
605 S_IRGRP, S_IWGRP, S_IXGRP,
606 S_IROTH, S_IWOTH, S_IXOTH
608 static char c[] = "-rwxrwxrwx";
610 if ( value[ j ] == c[ j ] ) {
613 } else if ( value[ j ] != '-' ) {
632 #endif /* LDAP_PF_LOCAL || SLAP_X_LISTENER_MOD */
634 /* port = 0 indicates AF_LOCAL */
635 static int slap_get_listener_addresses(
638 struct sockaddr ***sal)
640 struct sockaddr **sap;
644 *sal = ch_malloc(2 * sizeof(void *));
650 *sap = ch_malloc(sizeof(struct sockaddr_un));
656 (sizeof(((struct sockaddr_un *)*sap)->sun_path) - 1) ) {
657 Debug( LDAP_DEBUG_ANY,
658 "daemon: domain socket path (%s) too long in URL",
663 (void)memset( (void *)*sap, '\0', sizeof(struct sockaddr_un) );
664 (*sap)->sa_family = AF_LOCAL;
665 strcpy( ((struct sockaddr_un *)*sap)->sun_path, host );
669 #ifdef HAVE_GETADDRINFO
670 struct addrinfo hints, *res, *sai;
674 memset( &hints, '\0', sizeof(hints) );
675 hints.ai_flags = AI_PASSIVE;
676 hints.ai_socktype = SOCK_STREAM;
677 hints.ai_family = slap_inet4or6;
678 snprintf(serv, sizeof serv, "%d", port);
680 if ( (err = getaddrinfo(host, serv, &hints, &res)) ) {
681 Debug( LDAP_DEBUG_ANY, "daemon: getaddrinfo failed: %s\n",
682 AC_GAI_STRERROR(err), 0, 0);
687 for (n=2; (sai = sai->ai_next) != NULL; n++) {
690 *sal = ch_calloc(n, sizeof(void *));
698 for ( sai=res; sai; sai=sai->ai_next ) {
699 if( sai->ai_addr == NULL ) {
700 Debug( LDAP_DEBUG_ANY, "slap_get_listener_addresses: "
701 "getaddrinfo ai_addr is NULL?\n", 0, 0, 0 );
706 switch (sai->ai_family) {
707 # ifdef LDAP_PF_INET6
709 *sap = ch_malloc(sizeof(struct sockaddr_in6));
714 *(struct sockaddr_in6 *)*sap =
715 *((struct sockaddr_in6 *)sai->ai_addr);
719 *sap = ch_malloc(sizeof(struct sockaddr_in));
724 *(struct sockaddr_in *)*sap =
725 *((struct sockaddr_in *)sai->ai_addr);
733 (*sap)->sa_family = sai->ai_family;
743 struct hostent *he = NULL;
745 if ( host == NULL ) {
746 in.s_addr = htonl(INADDR_ANY);
748 } else if ( !inet_aton( host, &in ) ) {
749 he = gethostbyname( host );
751 Debug( LDAP_DEBUG_ANY,
752 "daemon: invalid host %s", host, 0, 0);
755 for (n = 0; he->h_addr_list[n]; n++) ;
758 *sal = ch_malloc((n+1) * sizeof(void *));
764 for ( i = 0; i<n; i++ ) {
765 sap[i] = ch_malloc(sizeof(struct sockaddr_in));
769 (void)memset( (void *)sap[i], '\0', sizeof(struct sockaddr_in) );
770 sap[i]->sa_family = AF_INET;
771 ((struct sockaddr_in *)sap[i])->sin_port = htons(port);
773 AC_MEMCPY( &((struct sockaddr_in *)sap[i])->sin_addr, he->h_addr_list[i], sizeof(struct in_addr) );
775 AC_MEMCPY( &((struct sockaddr_in *)sap[i])->sin_addr, &in, sizeof(struct in_addr) );
785 slap_free_listener_addresses(*sal);
789 static int slap_open_listener(
800 int err, addrlen = 0;
801 struct sockaddr **sal, **psal;
802 int socktype = SOCK_STREAM; /* default to COTS */
804 #if defined(LDAP_PF_LOCAL) || defined(SLAP_X_LISTENER_MOD)
809 #endif /* LDAP_PF_LOCAL || SLAP_X_LISTENER_MOD */
811 rc = ldap_url_parse( url, &lud );
813 if( rc != LDAP_URL_SUCCESS ) {
814 Debug( LDAP_DEBUG_ANY,
815 "daemon: listen URL \"%s\" parse error=%d\n",
820 l.sl_url.bv_val = NULL;
824 if( ldap_pvt_url_scheme2tls( lud->lud_scheme ) ) {
825 Debug( LDAP_DEBUG_ANY,
826 "daemon: TLS not supported (%s)\n",
828 ldap_free_urldesc( lud );
832 if(! lud->lud_port ) {
833 lud->lud_port = LDAP_PORT;
837 l.sl_is_tls = ldap_pvt_url_scheme2tls( lud->lud_scheme );
839 if(! lud->lud_port ) {
840 lud->lud_port = l.sl_is_tls ? LDAPS_PORT : LDAP_PORT;
844 port = (unsigned short) lud->lud_port;
846 tmp = ldap_pvt_url_scheme2proto(lud->lud_scheme);
847 if ( tmp == LDAP_PROTO_IPC ) {
849 if ( lud->lud_host == NULL || lud->lud_host[0] == '\0' ) {
850 err = slap_get_listener_addresses(LDAPI_SOCK, 0, &sal);
852 err = slap_get_listener_addresses(lud->lud_host, 0, &sal);
856 Debug( LDAP_DEBUG_ANY, "daemon: URL scheme not supported: %s",
858 ldap_free_urldesc( lud );
862 if( lud->lud_host == NULL || lud->lud_host[0] == '\0'
863 || strcmp(lud->lud_host, "*") == 0 )
865 err = slap_get_listener_addresses(NULL, port, &sal);
867 err = slap_get_listener_addresses(lud->lud_host, port, &sal);
870 #ifdef LDAP_CONNECTIONLESS
871 l.sl_is_udp = ( tmp == LDAP_PROTO_UDP );
874 #if defined(LDAP_PF_LOCAL) || defined(SLAP_X_LISTENER_MOD)
875 if ( lud->lud_exts ) {
876 err = get_url_perms( lud->lud_exts, &l.sl_perms, &crit );
878 l.sl_perms = S_IRWXU | S_IRWXO;
880 #endif /* LDAP_PF_LOCAL || SLAP_X_LISTENER_MOD */
882 ldap_free_urldesc( lud );
887 /* If we got more than one address returned, we need to make space
888 * for it in the slap_listeners array.
890 for ( num=0; sal[num]; num++ );
893 slap_listeners = ch_realloc( slap_listeners, (*listeners + 1) * sizeof(Listener *) );
897 while ( *sal != NULL ) {
899 switch( (*sal)->sa_family ) {
917 #ifdef LDAP_CONNECTIONLESS
918 if( l.sl_is_udp ) socktype = SOCK_DGRAM;
920 l.sl_sd = socket( (*sal)->sa_family, socktype, 0);
921 if ( l.sl_sd == AC_SOCKET_INVALID ) {
922 int err = sock_errno();
923 Debug( LDAP_DEBUG_ANY,
924 "daemon: %s socket() failed errno=%d (%s)\n",
925 af, err, sock_errstr(err) );
930 if ( l.sl_sd >= dtblsize ) {
931 Debug( LDAP_DEBUG_ANY,
932 "daemon: listener descriptor %ld is too great %ld\n",
933 (long) l.sl_sd, (long) dtblsize, 0 );
934 tcp_close( l.sl_sd );
940 if ( (*sal)->sa_family == AF_LOCAL ) {
941 unlink ( ((struct sockaddr_un *)*sal)->sun_path );
946 /* enable address reuse */
948 rc = setsockopt( l.sl_sd, SOL_SOCKET, SO_REUSEADDR,
949 (char *) &tmp, sizeof(tmp) );
950 if ( rc == AC_SOCKET_ERROR ) {
951 int err = sock_errno();
952 Debug( LDAP_DEBUG_ANY,
953 "slapd(%ld): setsockopt(SO_REUSEADDR) failed errno=%d (%s)\n",
954 (long) l.sl_sd, err, sock_errstr(err) );
959 switch( (*sal)->sa_family ) {
961 addrlen = sizeof(struct sockaddr_in);
966 /* Try to use IPv6 sockets for IPv6 only */
968 rc = setsockopt( l.sl_sd, IPPROTO_IPV6, IPV6_V6ONLY,
969 (char *) &tmp, sizeof(tmp) );
970 if ( rc == AC_SOCKET_ERROR ) {
971 int err = sock_errno();
972 Debug( LDAP_DEBUG_ANY,
973 "slapd(%ld): setsockopt(IPV6_V6ONLY) failed errno=%d (%s)\n",
974 (long) l.sl_sd, err, sock_errstr(err) );
977 addrlen = sizeof(struct sockaddr_in6);
985 setsockopt(l.sl_sd, 0, LOCAL_CREDS, &one, sizeof one);
988 addrlen = sizeof(struct sockaddr_un);
993 if (bind(l.sl_sd, *sal, addrlen)) {
995 Debug( LDAP_DEBUG_ANY, "daemon: bind(%ld) failed errno=%d (%s)\n",
996 (long) l.sl_sd, err, sock_errstr(err) );
997 tcp_close( l.sl_sd );
1002 switch ( (*sal)->sa_family ) {
1003 #ifdef LDAP_PF_LOCAL
1005 char *addr = ((struct sockaddr_un *)*sal)->sun_path;
1006 l.sl_name.bv_len = strlen(addr) + sizeof("PATH=") - 1;
1007 l.sl_name.bv_val = ber_memalloc( l.sl_name.bv_len + 1 );
1008 snprintf( l.sl_name.bv_val, l.sl_name.bv_len + 1,
1011 #endif /* LDAP_PF_LOCAL */
1015 #if defined( HAVE_GETADDRINFO ) && defined( HAVE_INET_NTOP )
1016 char addr[INET_ADDRSTRLEN];
1017 inet_ntop( AF_INET, &((struct sockaddr_in *)*sal)->sin_addr,
1018 addr, sizeof(addr) );
1021 s = inet_ntoa( ((struct sockaddr_in *) *sal)->sin_addr );
1023 port = ntohs( ((struct sockaddr_in *)*sal) ->sin_port );
1024 l.sl_name.bv_val = ber_memalloc( sizeof("IP=255.255.255.255:65535") );
1025 snprintf( l.sl_name.bv_val, sizeof("IP=255.255.255.255:65535"),
1027 s != NULL ? s : SLAP_STRING_UNKNOWN, port );
1028 l.sl_name.bv_len = strlen( l.sl_name.bv_val );
1031 #ifdef LDAP_PF_INET6
1033 char addr[INET6_ADDRSTRLEN];
1034 inet_ntop( AF_INET6, &((struct sockaddr_in6 *)*sal)->sin6_addr,
1036 port = ntohs( ((struct sockaddr_in6 *)*sal)->sin6_port );
1037 l.sl_name.bv_len = strlen(addr) + sizeof("IP= 65535");
1038 l.sl_name.bv_val = ber_memalloc( l.sl_name.bv_len );
1039 snprintf( l.sl_name.bv_val, l.sl_name.bv_len, "IP=%s %d",
1041 l.sl_name.bv_len = strlen( l.sl_name.bv_val );
1043 #endif /* LDAP_PF_INET6 */
1046 Debug( LDAP_DEBUG_ANY, "daemon: unsupported address family (%d)\n",
1047 (int) (*sal)->sa_family, 0, 0 );
1051 AC_MEMCPY(&l.sl_sa, *sal, addrlen);
1052 ber_str2bv( url, 0, 1, &l.sl_url);
1053 li = ch_malloc( sizeof( Listener ) );
1055 slap_listeners[*cur] = li;
1059 } /* while ( *sal != NULL ) */
1061 slap_free_listener_addresses(psal);
1063 if ( l.sl_url.bv_val == NULL )
1065 Debug( LDAP_DEBUG_TRACE,
1066 "slap_open_listener: failed on %s\n", url, 0, 0 );
1070 Debug( LDAP_DEBUG_TRACE, "daemon: initialized %s\n",
1071 l.sl_url.bv_val, 0, 0 );
1075 static int sockinit(void);
1076 static int sockdestroy(void);
1078 int slapd_daemon_init( const char *urls )
1083 Debug( LDAP_DEBUG_ARGS, "daemon_init: %s\n",
1084 urls ? urls : "<null>", 0, 0 );
1085 if( (rc = sockinit()) != 0 ) {
1090 dtblsize = sysconf( _SC_OPEN_MAX );
1091 #elif HAVE_GETDTABLESIZE
1092 dtblsize = getdtablesize();
1094 dtblsize = FD_SETSIZE;
1097 /* open a pipe (or something equivalent connected to itself).
1098 * we write a byte on this fd whenever we catch a signal. The main
1099 * loop will be select'ing on this socket, and will wake up when
1100 * this byte arrives.
1102 if( (rc = lutil_pair( wake_sds )) < 0 ) {
1103 Debug( LDAP_DEBUG_ANY,
1104 "daemon: lutil_pair() failed rc=%d\n", rc, 0, 0 );
1110 if( urls == NULL ) {
1114 u = ldap_str2charray( urls, " " );
1116 if( u == NULL || u[0] == NULL ) {
1117 Debug( LDAP_DEBUG_ANY, "daemon_init: no urls (%s) provided.\n",
1122 for( i=0; u[i] != NULL; i++ ) {
1123 Debug( LDAP_DEBUG_TRACE, "daemon_init: listen on %s\n",
1128 Debug( LDAP_DEBUG_ANY, "daemon_init: no listeners to open (%s)\n",
1130 ldap_charray_free( u );
1134 Debug( LDAP_DEBUG_TRACE, "daemon_init: %d listeners to open...\n",
1136 slap_listeners = ch_malloc( (i+1)*sizeof(Listener *) );
1138 for(n = 0, j = 0; u[n]; n++ ) {
1139 if ( slap_open_listener( u[n], &i, &j ) ) {
1140 ldap_charray_free( u );
1144 slap_listeners[j] = NULL;
1146 Debug( LDAP_DEBUG_TRACE, "daemon_init: %d listeners opened\n",
1150 if( slapd_register_slp ) {
1151 slapd_slp_init( urls );
1156 ldap_charray_free( u );
1157 ldap_pvt_thread_mutex_init( &slap_daemon.sd_mutex );
1163 slapd_daemon_destroy(void)
1165 connections_destroy();
1166 tcp_close( wake_sds[1] );
1167 tcp_close( wake_sds[0] );
1171 if( slapd_register_slp ) {
1188 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1189 if ( slap_listeners[l]->sl_sd != AC_SOCKET_INVALID ) {
1191 slapd_remove( slap_listeners[l]->sl_sd, 0, 0 );
1192 #ifdef LDAP_PF_LOCAL
1193 if ( slap_listeners[l]->sl_sa.sa_addr.sa_family == AF_LOCAL ) {
1194 unlink( slap_listeners[l]->sl_sa.sa_un_addr.sun_path );
1196 #endif /* LDAP_PF_LOCAL */
1197 slapd_close( slap_listeners[l]->sl_sd );
1199 if ( slap_listeners[l]->sl_url.bv_val )
1200 ber_memfree( slap_listeners[l]->sl_url.bv_val );
1201 if ( slap_listeners[l]->sl_name.bv_val )
1202 ber_memfree( slap_listeners[l]->sl_name.bv_val );
1203 free ( slap_listeners[l] );
1204 slap_listeners[l] = NULL;
1209 slapd_handle_listener(
1216 socklen_t len = sizeof(from);
1219 struct berval authid = BER_BVNULL;
1220 #ifdef SLAPD_RLOOKUPS
1221 char hbuf[NI_MAXHOST];
1224 char *dnsname = NULL;
1225 char *peeraddr = NULL;
1226 #ifdef LDAP_PF_LOCAL
1227 char peername[MAXPATHLEN + sizeof("PATH=")];
1228 #elif defined(LDAP_PF_INET6)
1229 char peername[sizeof("IP=ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff 65535")];
1231 char peername[sizeof("IP=255.255.255.255:65336")];
1232 #endif /* LDAP_PF_LOCAL */
1236 #ifdef LDAP_CONNECTIONLESS
1237 if ( sl->sl_is_udp ) {
1238 /* The first time we receive a query, we set this
1239 * up as a "connection". It remains open for the life
1242 if ( sl->sl_is_udp < 2 ) {
1243 id = connection_init( sl->sl_sd, sl, "", "",
1244 CONN_IS_UDP, ssf, NULL );
1251 # ifdef LDAP_PF_LOCAL
1252 /* FIXME: apparently accept doesn't fill
1253 * the sun_path sun_path member */
1254 from.sa_un_addr.sun_path[0] = '\0';
1255 # endif /* LDAP_PF_LOCAL */
1257 s = accept( sl->sl_sd, (struct sockaddr *) &from, &len );
1258 if ( s == AC_SOCKET_INVALID ) {
1259 int err = sock_errno();
1270 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
1272 /* Stop listening until an existing session closes */
1274 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
1277 Debug( LDAP_DEBUG_ANY,
1278 "daemon: accept(%ld) failed errno=%d (%s)\n",
1279 (long) sl->sl_sd, err,
1281 ldap_pvt_thread_yield();
1285 #ifndef HAVE_WINSOCK
1286 /* make sure descriptor number isn't too great */
1287 if ( s >= dtblsize ) {
1288 Debug( LDAP_DEBUG_ANY,
1289 "daemon: %ld beyond descriptor table size %ld\n",
1290 (long) s, (long) dtblsize, 0 );
1293 ldap_pvt_thread_yield();
1299 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
1301 /* newly accepted stream should not be in any of the FD SETS */
1302 assert( SLAP_SOCK_NOT_ACTIVE( s ));
1304 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
1307 #if defined( SO_KEEPALIVE ) || defined( TCP_NODELAY )
1308 #ifdef LDAP_PF_LOCAL
1309 /* for IPv4 and IPv6 sockets only */
1310 if ( from.sa_addr.sa_family != AF_LOCAL )
1311 #endif /* LDAP_PF_LOCAL */
1316 /* enable keep alives */
1318 rc = setsockopt( s, SOL_SOCKET, SO_KEEPALIVE,
1319 (char *) &tmp, sizeof(tmp) );
1320 if ( rc == AC_SOCKET_ERROR ) {
1321 int err = sock_errno();
1322 Debug( LDAP_DEBUG_ANY,
1323 "slapd(%ld): setsockopt(SO_KEEPALIVE) failed "
1324 "errno=%d (%s)\n", (long) s, err, sock_errstr(err) );
1328 /* enable no delay */
1330 rc = setsockopt( s, IPPROTO_TCP, TCP_NODELAY,
1331 (char *)&tmp, sizeof(tmp) );
1332 if ( rc == AC_SOCKET_ERROR ) {
1333 int err = sock_errno();
1334 Debug( LDAP_DEBUG_ANY,
1335 "slapd(%ld): setsockopt(TCP_NODELAY) failed "
1336 "errno=%d (%s)\n", (long) s, err, sock_errstr(err) );
1342 Debug( LDAP_DEBUG_CONNS, "daemon: new connection on %ld\n",
1344 switch ( from.sa_addr.sa_family ) {
1345 # ifdef LDAP_PF_LOCAL
1347 /* FIXME: apparently accept doesn't fill
1348 * the sun_path sun_path member */
1349 if ( from.sa_un_addr.sun_path[0] == '\0' ) {
1350 AC_MEMCPY( from.sa_un_addr.sun_path,
1351 sl->sl_sa.sa_un_addr.sun_path,
1352 sizeof( from.sa_un_addr.sun_path ) );
1355 sprintf( peername, "PATH=%s", from.sa_un_addr.sun_path );
1361 if( getpeereid( s, &uid, &gid ) == 0 ) {
1362 authid.bv_val = ch_malloc(
1363 STRLENOF( "gidNumber=4294967295+uidNumber=4294967295,"
1364 "cn=peercred,cn=external,cn=auth" ) + 1 );
1365 authid.bv_len = sprintf( authid.bv_val,
1366 "gidNumber=%d+uidNumber=%d,"
1367 "cn=peercred,cn=external,cn=auth",
1368 (int) gid, (int) uid );
1369 assert( authid.bv_len <=
1370 STRLENOF( "gidNumber=4294967295+uidNumber=4294967295,"
1371 "cn=peercred,cn=external,cn=auth" ) );
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_BACKLOG ) == -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 ) {
1576 #if SLAP_EVENTS_ARE_INDEXED
1577 ber_socket_t nrfds, nwfds;
1579 #define SLAPD_EBADF_LIMIT 16
1586 struct timeval *tvp;
1588 struct timeval *cat;
1591 now = slap_get_time();
1593 if( ( global_idletimeout > 0 ) &&
1594 difftime( last_idle_check +
1595 global_idletimeout/SLAPD_IDLE_CHECK_LIMIT, now ) < 0 ) {
1596 connections_timeout_idle( now );
1597 last_idle_check = now;
1602 if( slapd_gentle_shutdown ) {
1603 ber_socket_t active;
1605 if( slapd_gentle_shutdown == 1 ) {
1606 Debug( LDAP_DEBUG_ANY, "slapd gentle shutdown\n", 0, 0, 0 );
1607 close_listeners( 1 );
1608 frontendDB->be_restrictops |= SLAP_RESTRICT_OP_WRITES;
1609 slapd_gentle_shutdown = 2;
1612 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
1613 active = slap_daemon.sd_nactives;
1614 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
1624 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
1626 nwriters = slap_daemon.sd_nwriters;
1629 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1630 if ( slap_listeners[l]->sl_sd == AC_SOCKET_INVALID )
1632 if ( slap_listeners[l]->sl_is_mute )
1633 SLAP_SOCK_SET_MUTE( slap_listeners[l]->sl_sd );
1635 if ( SLAP_SOCK_IS_MUTE( slap_listeners[l]->sl_sd ))
1636 SLAP_SOCK_CLR_MUTE( slap_listeners[l]->sl_sd );
1639 nfds = SLAP_EVENT_MAX;
1641 if ( global_idletimeout && slap_daemon.sd_nactives )
1644 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
1647 #if defined(HAVE_YIELDING_SELECT) || defined(NO_THREADS)
1648 && ( tv.tv_sec || tv.tv_usec )
1655 ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
1656 rtask = ldap_pvt_runqueue_next_sched( &slapd_rq, &cat );
1657 while ( cat && cat->tv_sec && cat->tv_sec <= now ) {
1658 if ( ldap_pvt_runqueue_isrunning( &slapd_rq, rtask )) {
1659 ldap_pvt_runqueue_resched( &slapd_rq, rtask, 0 );
1661 ldap_pvt_runqueue_runtask( &slapd_rq, rtask );
1662 ldap_pvt_runqueue_resched( &slapd_rq, rtask, 0 );
1663 ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
1664 ldap_pvt_thread_pool_submit( &connection_pool,
1665 rtask->routine, (void *) rtask );
1666 ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
1668 rtask = ldap_pvt_runqueue_next_sched( &slapd_rq, &cat );
1670 ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
1672 if ( cat && cat->tv_sec ) {
1673 time_t diff = difftime( cat->tv_sec, now );
1676 if ( tvp == NULL || diff < tv.tv_sec ) {
1683 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1684 if ( slap_listeners[l]->sl_sd == AC_SOCKET_INVALID ||
1685 slap_listeners[l]->sl_is_mute )
1688 Debug( LDAP_DEBUG_CONNS,
1689 "daemon: select: listen=%d active_threads=%d tvp=%s\n",
1690 slap_listeners[l]->sl_sd, at,
1691 tvp == NULL ? "NULL" : "zero" );
1694 switch(ns = SLAP_EVENT_WAIT(tvp))
1696 case -1: { /* failure - try again */
1697 int err = sock_errno();
1701 /* you'd think this would be EBADF */
1702 || err == WSAENOTSOCK
1705 if (++ebadf < SLAPD_EBADF_LIMIT)
1709 if( err != EINTR ) {
1710 Debug( LDAP_DEBUG_CONNS,
1711 "daemon: select failed (%d): %s\n",
1712 err, sock_errstr(err), 0 );
1718 case 0: /* timeout - let threads run */
1720 #ifndef HAVE_YIELDING_SELECT
1721 Debug( LDAP_DEBUG_CONNS, "daemon: select timeout - yielding\n",
1724 ldap_pvt_thread_yield();
1728 default: /* something happened - deal with it */
1729 if( slapd_shutdown ) continue;
1732 Debug( LDAP_DEBUG_CONNS, "daemon: activity on %d descriptors\n",
1737 #if SLAP_EVENTS_ARE_INDEXED
1738 if ( SLAP_EVENT_IS_READ( wake_sds[0] )) {
1740 tcp_read( wake_sds[0], c, sizeof(c) );
1743 SLAP_EVENT_CLR_READ( wake_sds[0] );
1747 /* The event slot equals the descriptor number - this is
1748 * true for Unix select and poll. We treat Windows select
1749 * like this too, even though it's a kludge.
1751 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1754 if ( ns <= 0 ) break;
1756 if ( slap_listeners[l]->sl_sd == AC_SOCKET_INVALID )
1759 if ( !SLAP_EVENT_IS_READ( slap_listeners[l]->sl_sd ))
1762 rc = slapd_handle_listener(slap_listeners[l]);
1764 #ifdef LDAP_CONNECTIONLESS
1765 /* This is a UDP session, let the data loop process it */
1771 /* Don't need to look at this in the data loops */
1772 SLAP_EVENT_CLR_READ( slap_listeners[l]->sl_sd );
1773 SLAP_EVENT_CLR_WRITE( slap_listeners[l]->sl_sd );
1776 /* bypass the following tests if no descriptors left */
1778 #ifndef HAVE_YIELDING_SELECT
1779 ldap_pvt_thread_yield();
1784 Debug( LDAP_DEBUG_CONNS, "daemon: activity on:", 0, 0, 0 );
1786 nrfds = readfds.fd_count;
1787 nwfds = writefds.fd_count;
1788 for ( i = 0; i < readfds.fd_count; i++ ) {
1789 Debug( LDAP_DEBUG_CONNS, " %d%s",
1790 readfds.fd_array[i], "r", 0 );
1792 for ( i = 0; i < writefds.fd_count; i++ ) {
1793 Debug( LDAP_DEBUG_CONNS, " %d%s",
1794 writefds.fd_array[i], "w", 0 );
1800 for ( i = 0; i < nfds; i++ ) {
1803 r = SLAP_EVENT_IS_READ( i );
1804 /* writefds was not initialized if nwriters was zero */
1805 w = nwriters ? SLAP_EVENT_IS_WRITE( i ) : 0;
1807 Debug( LDAP_DEBUG_CONNS, " %d%s%s", i,
1808 r ? "r" : "", w ? "w" : "" );
1818 if ( ns <= 0 ) break;
1821 Debug( LDAP_DEBUG_CONNS, "\n", 0, 0, 0 );
1824 /* loop through the writers */
1825 for ( i = 0; nwfds > 0; i++ )
1829 wd = writefds.fd_array[i];
1831 if( ! SLAP_EVENT_IS_WRITE( i ) ) {
1838 Debug( LDAP_DEBUG_CONNS,
1839 "daemon: write active on %d\n",
1842 * NOTE: it is possible that the connection was closed
1843 * and that the stream is now inactive.
1844 * connection_write() must valid the stream is still
1848 if ( connection_write( wd ) < 0 ) {
1849 if ( SLAP_EVENT_IS_READ( wd )) {
1850 SLAP_EVENT_CLR_READ( (unsigned) wd );
1855 SLAP_EVENT_CLR_WRITE( wd );
1858 for ( i = 0; nrfds > 0; i++ )
1862 rd = readfds.fd_array[i];
1864 if( ! SLAP_EVENT_IS_READ( i ) ) {
1871 Debug ( LDAP_DEBUG_CONNS,
1872 "daemon: read activity on %d\n", rd, 0, 0 );
1874 * NOTE: it is possible that the connection was closed
1875 * and that the stream is now inactive.
1876 * connection_read() must valid the stream is still
1880 if ( connection_read( rd ) < 0 ) {
1884 #else /* !SLAP_EVENTS_ARE_INDEXED */
1886 /* The events are returned in an arbitrary list. This is true
1887 * for /dev/poll, epoll and kqueue. In order to prioritize things
1888 * so that we can handle wake_sds first, listeners second, and then
1889 * all other connections last (as we do for select), we would need
1890 * to use multiple event handles and cascade them.
1892 * That seems like a bit of hassle. So the wake_sds check has been
1893 * skipped. For epoll and kqueue we can associate arbitrary data with
1894 * an event, so we could use pointers to the listener structure
1895 * instead of just the file descriptor. For /dev/poll we have to
1896 * search the listeners array for a matching descriptor.
1898 /* if waking is set and we woke up, we'll read whatever
1903 tcp_read( wake_sds[0], c, sizeof(c) );
1910 Debug( LDAP_DEBUG_CONNS, "daemon: activity on:", 0, 0, 0 );
1912 for (i=0; i<ns; i++) {
1915 if ( SLAP_EVENT_IS_LISTENER(i)
1916 #ifdef LDAP_CONNECTIONLESS
1917 && !((SLAP_EVENT_LISTENER(i))->sl_is_udp)
1921 /* Don't log internal wake events */
1922 if ( SLAP_EVENT_FD( i ) == wake_sds[0] )
1925 r = SLAP_EVENT_IS_READ( i );
1926 w = SLAP_EVENT_IS_WRITE( i );
1928 Debug( LDAP_DEBUG_CONNS, " %d%s%s", SLAP_EVENT_FD(i),
1929 r ? "r" : "", w ? "w" : "" );
1933 for (i=0; i<ns; i++) {
1936 if ( SLAP_EVENT_IS_LISTENER(i) ) {
1937 rc = slapd_handle_listener( SLAP_EVENT_LISTENER( i ));
1939 /* If we found a regular listener, rc is now zero, and we
1940 * can skip the data portion. But if it was a UDP listener
1941 * then rc is still 1, and we want to handle the data.
1944 fd = SLAP_EVENT_FD( i );
1946 /* Ignore wake events, they were handled above */
1947 if ( fd == wake_sds[0] )
1950 if( SLAP_EVENT_IS_WRITE( i ) ) {
1951 Debug( LDAP_DEBUG_CONNS,
1952 "daemon: write active on %d\n",
1955 * NOTE: it is possible that the connection was closed
1956 * and that the stream is now inactive.
1957 * connection_write() must valid the stream is still
1961 if ( connection_write( fd ) < 0 ) {
1966 if( SLAP_EVENT_IS_READ( i ) ) {
1967 Debug( LDAP_DEBUG_CONNS,
1968 "daemon: read active on %d\n",
1971 * NOTE: it is possible that the connection was closed
1972 * and that the stream is now inactive.
1973 * connection_read() must valid the stream is still
1977 if ( connection_read( fd ) < 0 ) {
1983 #endif /* SLAP_EVENTS_ARE_INDEXED */
1985 #ifndef HAVE_YIELDING_SELECT
1986 ldap_pvt_thread_yield();
1990 if( slapd_shutdown == 1 ) {
1991 Debug( LDAP_DEBUG_ANY,
1992 "daemon: shutdown requested and initiated.\n",
1995 } else if ( slapd_shutdown == 2 ) {
1996 #ifdef HAVE_NT_SERVICE_MANAGER
1997 Debug( LDAP_DEBUG_ANY,
1998 "daemon: shutdown initiated by Service Manager.\n",
2000 #else /* !HAVE_NT_SERVICE_MANAGER */
2001 Debug( LDAP_DEBUG_ANY,
2002 "daemon: abnormal condition, shutdown initiated.\n",
2004 #endif /* !HAVE_NT_SERVICE_MANAGER */
2006 Debug( LDAP_DEBUG_ANY,
2007 "daemon: no active streams, shutdown initiated.\n",
2011 if( slapd_gentle_shutdown != 2 ) {
2012 close_listeners ( 0 );
2015 if( !slapd_gentle_shutdown ) {
2016 slapd_abrupt_shutdown = 1;
2017 connections_shutdown();
2020 Debug( LDAP_DEBUG_ANY,
2021 "slapd shutdown: waiting for %d threads to terminate\n",
2022 ldap_pvt_thread_pool_backload(&connection_pool), 0, 0 );
2023 ldap_pvt_thread_pool_destroy(&connection_pool, 1);
2025 free ( slap_listeners );
2026 slap_listeners = NULL;
2032 int slapd_daemon( void )
2038 #define SLAPD_LISTENER_THREAD 1
2039 #if defined( SLAPD_LISTENER_THREAD )
2041 ldap_pvt_thread_t listener_tid;
2043 /* listener as a separate THREAD */
2044 rc = ldap_pvt_thread_create( &listener_tid,
2045 0, slapd_daemon_task, NULL );
2048 Debug( LDAP_DEBUG_ANY,
2049 "listener ldap_pvt_thread_create failed (%d)\n", rc, 0, 0 );
2053 /* wait for the listener thread to complete */
2054 ldap_pvt_thread_join( listener_tid, (void *) NULL );
2057 /* experimental code */
2058 slapd_daemon_task( NULL );
2065 static int sockinit(void)
2067 #if defined( HAVE_WINSOCK2 )
2068 WORD wVersionRequested;
2072 wVersionRequested = MAKEWORD( 2, 0 );
2074 err = WSAStartup( wVersionRequested, &wsaData );
2076 /* Tell the user that we couldn't find a usable */
2081 /* Confirm that the WinSock DLL supports 2.0.*/
2082 /* Note that if the DLL supports versions greater */
2083 /* than 2.0 in addition to 2.0, it will still return */
2084 /* 2.0 in wVersion since that is the version we */
2087 if ( LOBYTE( wsaData.wVersion ) != 2 ||
2088 HIBYTE( wsaData.wVersion ) != 0 )
2090 /* Tell the user that we couldn't find a usable */
2096 /* The WinSock DLL is acceptable. Proceed. */
2097 #elif defined( HAVE_WINSOCK )
2099 if ( WSAStartup( 0x0101, &wsaData ) != 0 ) {
2106 static int sockdestroy(void)
2108 #if defined( HAVE_WINSOCK2 ) || defined( HAVE_WINSOCK )
2115 slap_sig_shutdown( int sig )
2118 Debug(LDAP_DEBUG_TRACE, "slap_sig_shutdown: signal %d\n", sig, 0, 0);
2122 * If the NT Service Manager is controlling the server, we don't
2123 * want SIGBREAK to kill the server. For some strange reason,
2124 * SIGBREAK is generated when a user logs out.
2127 #if HAVE_NT_SERVICE_MANAGER && SIGBREAK
2128 if (is_NT_Service && sig == SIGBREAK)
2133 if (sig == SIGHUP && global_gentlehup && slapd_gentle_shutdown == 0)
2134 slapd_gentle_shutdown = 1;
2140 /* reinstall self */
2141 (void) SIGNAL_REINSTALL( sig, slap_sig_shutdown );
2145 slap_sig_wake( int sig )
2149 /* reinstall self */
2150 (void) SIGNAL_REINSTALL( sig, slap_sig_wake );
2154 void slapd_add_internal(ber_socket_t s, int isactive) {
2155 slapd_add(s, isactive, NULL);
2158 Listener ** slapd_get_listeners(void) {
2159 return slap_listeners;
2162 void slap_wake_listener()