2 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
4 * Copyright 1998-2004 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 #ifdef HAVE_SYS_EPOLL_H
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;
74 Listener **slap_listeners = NULL;
76 #define SLAPD_LISTEN 10
78 static ber_socket_t wake_sds[2];
82 #define WAKE_LISTENER(w) \
83 do { if (w && waking < 5) { tcp_write( wake_sds[1], "0", 1 ); waking++;} } while(0)
85 volatile sig_atomic_t slapd_shutdown = 0, slapd_gentle_shutdown = 0;
86 volatile sig_atomic_t slapd_abrupt_shutdown = 0;
88 static struct slap_daemon {
89 ldap_pvt_thread_mutex_t sd_mutex;
91 ber_socket_t sd_nactives;
95 struct epoll_event *sd_epolls;
103 /* In winsock, accept() returns values higher than dtblsize
104 so don't bother with this optimization */
115 #define SLAP_EVENTS_ARE_INDEXED 0
116 #define SLAP_SOCK_IX(s) (slap_daemon.sd_index[s])
117 #define SLAP_SOCK_EP(s) (slap_daemon.sd_epolls[SLAP_SOCK_IX(s)])
118 #define SLAP_SOCK_EV(s) (SLAP_SOCK_EP(s).events)
119 #define SLAP_SOCK_IS_ACTIVE(s) (SLAP_SOCK_IX(s) != -1)
120 #define SLAP_SOCK_NOT_ACTIVE(s) (SLAP_SOCK_IX(s) == -1)
121 #define SLAP_SOCK_IS_SET(s, mode) (SLAP_SOCK_EV(s) & mode)
123 #define SLAP_SOCK_IS_READ(s) SLAP_SOCK_IS_SET(s, EPOLLIN)
124 #define SLAP_SOCK_IS_WRITE(s) SLAP_SOCK_IS_SET(s, EPOLLOUT)
126 #define SLAP_SET_SOCK(s, mode) do { \
127 if ((SLAP_SOCK_EV(s) & mode) != mode) { \
128 SLAP_SOCK_EV(s) |= mode; \
129 epoll_ctl(slap_daemon.sd_epfd, EPOLL_CTL_MOD, s, \
134 #define SLAP_CLR_SOCK(s, mode) do { \
135 if ((SLAP_SOCK_EV(s) & mode)) { \
136 SLAP_SOCK_EV(s) &= ~mode; \
137 epoll_ctl(slap_daemon.sd_epfd, EPOLL_CTL_MOD, s, \
142 #define SLAP_SOCK_SET_READ(s) SLAP_SET_SOCK(s, EPOLLIN)
143 #define SLAP_SOCK_SET_WRITE(s) SLAP_SET_SOCK(s, EPOLLOUT)
145 #define SLAP_SOCK_CLR_READ(s) SLAP_CLR_SOCK(s, EPOLLIN)
146 #define SLAP_SOCK_CLR_WRITE(s) SLAP_CLR_SOCK(s, EPOLLOUT)
148 #define SLAP_CLR_EVENT(i, mode) (revents[i].events &= ~mode)
151 #define SLAP_EVENT_MAX slap_daemon.sd_nfds
153 /* If a Listener address is provided, store that as the epoll data.
154 * Otherwise, store the address of this socket's slot in the
155 * index array. If we can't do this add, the system is out of
156 * resources and we need to shutdown.
158 #define SLAP_ADD_SOCK(s, l) do { \
160 SLAP_SOCK_IX(s) = slap_daemon.sd_nfds; \
161 SLAP_SOCK_EP(s).data.ptr = (l) ? (l) : (void *)(&SLAP_SOCK_IX(s)); \
162 SLAP_SOCK_EV(s) = EPOLLIN; \
163 rc = epoll_ctl(slap_daemon.sd_epfd, EPOLL_CTL_ADD, s, \
165 if ( rc == 0 ) slap_daemon.sd_nfds++; \
167 Debug( LDAP_DEBUG_ANY, "daemon: epoll_ctl ADD failed, errno %d, shutting down\n"
169 slapd_shutdown = 2; \
173 #define SLAP_EV_LISTENER(ptr) (((int *)(ptr) >= slap_daemon.sd_index && \
174 (int *)(ptr) <= (slap_daemon.sd_index+dtblsize)) ? 0 : 1)
176 #define SLAP_EV_PTRFD(ptr) (SLAP_EV_LISTENER(ptr) ? \
177 ((Listener *)ptr)->sl_sd : (int *)(ptr) - slap_daemon.sd_index)
179 #define SLAP_DEL_SOCK(s) do { \
180 int fd, rc, index = SLAP_SOCK_IX(s); \
181 rc = epoll_ctl(slap_daemon.sd_epfd, EPOLL_CTL_DEL, s, \
183 slap_daemon.sd_epolls[index] = slap_daemon.sd_epolls[slap_daemon.sd_nfds-1]; \
184 fd = SLAP_EV_PTRFD(slap_daemon.sd_epolls[index].data.ptr); \
185 slap_daemon.sd_index[fd] = index; \
186 slap_daemon.sd_index[s] = -1; \
187 slap_daemon.sd_nfds--; \
190 #define SLAP_EVENT_CLR_READ(i) SLAP_CLR_EVENT(i, EPOLLIN)
191 #define SLAP_EVENT_CLR_WRITE(i) SLAP_CLR_EVENT(i, EPOLLOUT)
193 #define SLAP_CHK_EVENT(i, mode) (revents[i].events & mode)
195 #define SLAP_EVENT_IS_READ(i) SLAP_CHK_EVENT(i, EPOLLIN)
196 #define SLAP_EVENT_IS_WRITE(i) SLAP_CHK_EVENT(i, EPOLLOUT)
197 #define SLAP_EVENT_IS_LISTENER(i) SLAP_EV_LISTENER(revents[i].data.ptr)
198 #define SLAP_EVENT_LISTENER(i) (revents[i].data.ptr)
200 #define SLAP_EVENT_FD(i) SLAP_EV_PTRFD(revents[i].data.ptr)
201 #define SLAP_SOCK_SET_MUTE(s) SLAP_SOCK_CLR_READ(s)
202 #define SLAP_SOCK_CLR_MUTE(s) SLAP_SOCK_SET_READ(s)
203 #define SLAP_SOCK_IS_MUTE(s) !SLAP_SOCK_IS_READ(s)
205 #define SLAP_SOCK_SET_INIT \
206 slap_daemon.sd_epolls = ch_malloc(sizeof(struct epoll_event) * dtblsize * 2); \
207 slap_daemon.sd_index = ch_malloc(sizeof(int) * dtblsize); \
208 slap_daemon.sd_epfd = epoll_create( dtblsize ); \
209 for (i=0; i<dtblsize; i++) slap_daemon.sd_index[i] = -1
212 #define SLAP_EVENT_DECL \
213 struct epoll_event *revents
215 #define SLAP_EVENT_INIT \
216 revents = slap_daemon.sd_epolls + dtblsize; \
218 #define SLAP_EVENT_WAIT(tvp) \
219 epoll_wait( slap_daemon.sd_epfd, revents, dtblsize, tvp ? tvp->tv_sec * 1000 : -1 )
224 #define SLAP_EVENTS_ARE_INDEXED 1
225 #define SLAP_EVENT_DECL \
226 fd_set readfds, writefds
228 #define SLAP_EVENT_INIT \
229 AC_MEMCPY( &readfds, &slap_daemon.sd_readers, sizeof(fd_set) ); \
231 AC_MEMCPY( &writefds, &slap_daemon.sd_writers, sizeof(fd_set) );
234 #define CHK_SETSIZE \
235 if (dtblsize > FD_SETSIZE) dtblsize = FD_SETSIZE
240 #define SLAP_SOCK_SET_INIT \
242 FD_ZERO(&slap_daemon.sd_readers); \
243 FD_ZERO(&slap_daemon.sd_writers)
245 #define SLAP_SOCK_IS_ACTIVE(fd) FD_ISSET(fd, &slap_daemon.sd_actives)
247 #define SLAP_SOCK_IS_READ(fd) FD_ISSET(fd, &slap_daemon.sd_readers)
248 #define SLAP_SOCK_IS_WRITE(fd) FD_ISSET(fd, &slap_daemon.sd_writers)
250 #define SLAP_SOCK_NOT_ACTIVE(fd) (!SLAP_SOCK_IS_ACTIVE(fd) && \
251 !SLAP_SOCK_IS_READ(fd) && !SLAP_SOCK_IS_WRITE(fd))
254 #define SLAP_SOCK_SET_READ(fd) do { \
255 if (!SLAP_SOCK_IS_READ(fd)) {FD_SET(fd, &slap_daemon.sd_readers);} \
257 #define SLAP_SOCK_SET_WRITE(fd) do { \
258 if (!SLAP_SOCK_IS_WRITE(fd)) {FD_SET(fd, &slap_daemon.sd_writers);} \
261 #define SLAP_ADDTEST(s)
262 #define SLAP_EVENT_MAX dtblsize
264 #define SLAP_SOCK_SET_READ(fd) FD_SET(fd, &slap_daemon.sd_readers)
265 #define SLAP_SOCK_SET_WRITE(fd) FD_SET(fd, &slap_daemon.sd_writers)
267 #define SLAP_EVENT_MAX slap_daemon.sd_nfds
268 #define SLAP_ADDTEST(s) if (s >= slap_daemon.sd_nfds) slap_daemon.sd_nfds = s+1
271 #define SLAP_SOCK_CLR_READ(fd) FD_CLR(fd, &slap_daemon.sd_readers)
272 #define SLAP_SOCK_CLR_WRITE(fd) FD_CLR(fd, &slap_daemon.sd_writers)
274 #define SLAP_ADD_SOCK(s, l) do { \
276 FD_SET(s, &slap_daemon.sd_actives); \
277 FD_SET(s, &slap_daemon.sd_readers); \
280 #define SLAP_DEL_SOCK(s) do { \
281 FD_CLR(s, &slap_daemon.sd_actives); \
282 FD_CLR(s, &slap_daemon.sd_readers); \
283 FD_CLR(s, &slap_daemon.sd_writers); \
286 #define SLAP_EVENT_IS_READ(fd) FD_ISSET(fd, &readfds)
287 #define SLAP_EVENT_IS_WRITE(fd) FD_ISSET(fd, &writefds)
289 #define SLAP_EVENT_CLR_READ(fd) FD_CLR(fd, &readfds)
290 #define SLAP_EVENT_CLR_WRITE(fd) FD_CLR(fd, &writefds)
292 #define SLAP_EVENT_WAIT(tvp) \
293 select( SLAP_EVENT_MAX, &readfds, \
294 nwriters > 0 ? &writefds : NULL, NULL, tvp )
296 #define SLAP_SOCK_SET_MUTE(s) FD_CLR(s, &readfds)
297 #define SLAP_SOCK_CLR_MUTE(s) FD_SET(s, &readfds)
298 #define SLAP_SOCK_IS_MUTE(s) FD_ISSET(s, &readfds)
305 * SLP related functions
309 #define LDAP_SRVTYPE_PREFIX "service:ldap://"
310 #define LDAPS_SRVTYPE_PREFIX "service:ldaps://"
311 static char** slapd_srvurls = NULL;
312 static SLPHandle slapd_hslp = 0;
313 int slapd_register_slp = 0;
315 void slapd_slp_init( const char* urls ) {
318 slapd_srvurls = ldap_str2charray( urls, " " );
320 if( slapd_srvurls == NULL ) return;
322 /* find and expand INADDR_ANY URLs */
323 for( i=0; slapd_srvurls[i] != NULL; i++ ) {
324 if( strcmp( slapd_srvurls[i], "ldap:///" ) == 0) {
325 char *host = ldap_pvt_get_fqdn( NULL );
326 if ( host != NULL ) {
327 slapd_srvurls[i] = (char *) ch_realloc( slapd_srvurls[i],
329 sizeof( LDAP_SRVTYPE_PREFIX ) );
330 strcpy( lutil_strcopy(slapd_srvurls[i],
331 LDAP_SRVTYPE_PREFIX ), host );
336 } else if ( strcmp( slapd_srvurls[i], "ldaps:///" ) == 0) {
337 char *host = ldap_pvt_get_fqdn( NULL );
338 if ( host != NULL ) {
339 slapd_srvurls[i] = (char *) ch_realloc( slapd_srvurls[i],
341 sizeof( LDAPS_SRVTYPE_PREFIX ) );
342 strcpy( lutil_strcopy(slapd_srvurls[i],
343 LDAPS_SRVTYPE_PREFIX ), host );
350 /* open the SLP handle */
351 SLPOpen( "en", 0, &slapd_hslp );
354 void slapd_slp_deinit() {
355 if( slapd_srvurls == NULL ) return;
357 ldap_charray_free( slapd_srvurls );
358 slapd_srvurls = NULL;
360 /* close the SLP handle */
361 SLPClose( slapd_hslp );
364 void slapd_slp_regreport(
372 void slapd_slp_reg() {
375 if( slapd_srvurls == NULL ) return;
377 for( i=0; slapd_srvurls[i] != NULL; i++ ) {
378 if( strncmp( slapd_srvurls[i], LDAP_SRVTYPE_PREFIX,
379 sizeof( LDAP_SRVTYPE_PREFIX ) - 1 ) == 0 ||
380 strncmp( slapd_srvurls[i], LDAPS_SRVTYPE_PREFIX,
381 sizeof( LDAPS_SRVTYPE_PREFIX ) - 1 ) == 0 )
385 SLP_LIFETIME_MAXIMUM,
395 void slapd_slp_dereg() {
398 if( slapd_srvurls == NULL ) return;
400 for( i=0; slapd_srvurls[i] != NULL; i++ ) {
401 SLPDereg( slapd_hslp,
407 #endif /* HAVE_SLP */
410 * Add a descriptor to daemon control
412 * If isactive, the descriptor is a live server session and is subject
413 * to idletimeout control. Otherwise, the descriptor is a passive
414 * listener or an outbound client session, and not subject to
415 * idletimeout. The underlying event handler may record the Listener
416 * argument to differentiate Listener's from real sessions.
418 static void slapd_add(ber_socket_t s, int isactive, Listener *sl) {
419 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
421 assert( SLAP_SOCK_NOT_ACTIVE(s) );
424 slap_daemon.sd_nactives++;
427 SLAP_ADD_SOCK(s, sl);
429 Debug( LDAP_DEBUG_CONNS, "daemon: added %ldr\n",
431 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
435 * Remove the descriptor from daemon control
437 void slapd_remove(ber_socket_t s, int wasactive, int wake) {
439 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
442 slap_daemon.sd_nactives--;
444 waswriter = SLAP_SOCK_IS_WRITE(s);
446 Debug( LDAP_DEBUG_CONNS, "daemon: removing %ld%s%s\n",
447 (long) s, SLAP_SOCK_IS_READ(s) ? "r" : "",
448 waswriter ? "w" : "" );
449 if ( waswriter ) slap_daemon.sd_nwriters--;
453 /* If we ran out of file descriptors, we dropped a listener from
454 * the select() loop. Now that we're removing a session from our
455 * control, we can try to resume a dropped listener to use.
459 for ( i = 0; slap_listeners[i] != NULL; i++ ) {
460 if ( slap_listeners[i]->sl_sd != AC_SOCKET_INVALID ) {
461 if ( slap_listeners[i]->sl_sd == s ) continue;
462 if ( slap_listeners[i]->sl_is_mute ) {
463 slap_listeners[i]->sl_is_mute = 0;
469 /* Walked the entire list without enabling anything; emfile
470 * counter is stale. Reset it.
472 if ( slap_listeners[i] == NULL )
475 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
476 WAKE_LISTENER(wake || slapd_gentle_shutdown == 2);
479 void slapd_clr_write(ber_socket_t s, int wake) {
480 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
482 assert( SLAP_SOCK_IS_ACTIVE( s ));
483 if ( SLAP_SOCK_IS_WRITE( s )) {
484 SLAP_SOCK_CLR_WRITE( s );
485 slap_daemon.sd_nwriters--;
488 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
492 void slapd_set_write(ber_socket_t s, int wake) {
493 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
495 assert( SLAP_SOCK_IS_ACTIVE( s ));
496 if ( !SLAP_SOCK_IS_WRITE( s )) {
497 SLAP_SOCK_SET_WRITE( s );
498 slap_daemon.sd_nwriters++;
501 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
505 void slapd_clr_read(ber_socket_t s, int wake) {
506 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
508 assert( SLAP_SOCK_IS_ACTIVE( s ));
509 SLAP_SOCK_CLR_READ( s );
511 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
515 void slapd_set_read(ber_socket_t s, int wake) {
516 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
518 assert( SLAP_SOCK_IS_ACTIVE( s ));
519 if (!SLAP_SOCK_IS_READ( s ))
520 SLAP_SOCK_SET_READ( s );
522 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
526 static void slapd_close(ber_socket_t s) {
527 Debug( LDAP_DEBUG_CONNS, "daemon: closing %ld\n",
532 static void slap_free_listener_addresses(struct sockaddr **sal)
534 struct sockaddr **sap;
540 for (sap = sal; *sap != NULL; sap++) {
547 #if defined(LDAP_PF_LOCAL) || defined(SLAP_X_LISTENER_MOD)
548 static int get_url_perms(
560 for ( i = 0; exts[ i ]; i++ ) {
561 char *type = exts[ i ];
564 if ( type[ 0 ] == '!' ) {
569 if ( strncasecmp( type, LDAPI_MOD_URLEXT "=", sizeof(LDAPI_MOD_URLEXT "=") - 1 ) == 0 ) {
571 + ( sizeof(LDAPI_MOD_URLEXT "=") - 1 );
575 switch (strlen(value)) {
577 /* skip leading '0' */
578 if ( value[ 0 ] != '0' ) {
584 for ( j = 0; j < 3; j++) {
587 v = value[ j ] - '0';
589 if ( v < 0 || v > 7 ) {
598 for ( j = 1; j < 10; j++ ) {
599 static mode_t m[] = { 0,
600 S_IRUSR, S_IWUSR, S_IXUSR,
601 S_IRGRP, S_IWGRP, S_IXGRP,
602 S_IROTH, S_IWOTH, S_IXOTH
604 static char c[] = "-rwxrwxrwx";
606 if ( value[ j ] == c[ j ] ) {
609 } else if ( value[ j ] != '-' ) {
628 #endif /* LDAP_PF_LOCAL || SLAP_X_LISTENER_MOD */
630 /* port = 0 indicates AF_LOCAL */
631 static int slap_get_listener_addresses(
634 struct sockaddr ***sal)
636 struct sockaddr **sap;
640 *sal = ch_malloc(2 * sizeof(void *));
646 *sap = ch_malloc(sizeof(struct sockaddr_un));
652 (sizeof(((struct sockaddr_un *)*sap)->sun_path) - 1) ) {
653 Debug( LDAP_DEBUG_ANY,
654 "daemon: domain socket path (%s) too long in URL",
659 (void)memset( (void *)*sap, '\0', sizeof(struct sockaddr_un) );
660 (*sap)->sa_family = AF_LOCAL;
661 strcpy( ((struct sockaddr_un *)*sap)->sun_path, host );
665 #ifdef HAVE_GETADDRINFO
666 struct addrinfo hints, *res, *sai;
670 memset( &hints, '\0', sizeof(hints) );
671 hints.ai_flags = AI_PASSIVE;
672 hints.ai_socktype = SOCK_STREAM;
673 hints.ai_family = slap_inet4or6;
674 snprintf(serv, sizeof serv, "%d", port);
676 if ( (err = getaddrinfo(host, serv, &hints, &res)) ) {
677 Debug( LDAP_DEBUG_ANY, "daemon: getaddrinfo failed: %s\n",
678 AC_GAI_STRERROR(err), 0, 0);
683 for (n=2; (sai = sai->ai_next) != NULL; n++) {
686 *sal = ch_calloc(n, sizeof(void *));
694 for ( sai=res; sai; sai=sai->ai_next ) {
695 if( sai->ai_addr == NULL ) {
696 Debug( LDAP_DEBUG_ANY, "slap_get_listener_addresses: "
697 "getaddrinfo ai_addr is NULL?\n", 0, 0, 0 );
702 switch (sai->ai_family) {
703 # ifdef LDAP_PF_INET6
705 *sap = ch_malloc(sizeof(struct sockaddr_in6));
710 *(struct sockaddr_in6 *)*sap =
711 *((struct sockaddr_in6 *)sai->ai_addr);
715 *sap = ch_malloc(sizeof(struct sockaddr_in));
720 *(struct sockaddr_in *)*sap =
721 *((struct sockaddr_in *)sai->ai_addr);
729 (*sap)->sa_family = sai->ai_family;
739 struct hostent *he = NULL;
741 if ( host == NULL ) {
742 in.s_addr = htonl(INADDR_ANY);
744 } else if ( !inet_aton( host, &in ) ) {
745 he = gethostbyname( host );
747 Debug( LDAP_DEBUG_ANY,
748 "daemon: invalid host %s", host, 0, 0);
751 for (n = 0; he->h_addr_list[n]; n++) ;
754 *sal = ch_malloc((n+1) * sizeof(void *));
760 for ( i = 0; i<n; i++ ) {
761 sap[i] = ch_malloc(sizeof(struct sockaddr_in));
765 (void)memset( (void *)sap[i], '\0', sizeof(struct sockaddr_in) );
766 sap[i]->sa_family = AF_INET;
767 ((struct sockaddr_in *)sap[i])->sin_port = htons(port);
769 AC_MEMCPY( &((struct sockaddr_in *)sap[i])->sin_addr, he->h_addr_list[i], sizeof(struct in_addr) );
771 AC_MEMCPY( &((struct sockaddr_in *)sap[i])->sin_addr, &in, sizeof(struct in_addr) );
781 slap_free_listener_addresses(*sal);
785 static int slap_open_listener(
796 int err, addrlen = 0;
797 struct sockaddr **sal, **psal;
798 int socktype = SOCK_STREAM; /* default to COTS */
800 #if defined(LDAP_PF_LOCAL) || defined(SLAP_X_LISTENER_MOD)
805 #endif /* LDAP_PF_LOCAL || SLAP_X_LISTENER_MOD */
807 rc = ldap_url_parse( url, &lud );
809 if( rc != LDAP_URL_SUCCESS ) {
810 Debug( LDAP_DEBUG_ANY,
811 "daemon: listen URL \"%s\" parse error=%d\n",
816 l.sl_url.bv_val = NULL;
820 if( ldap_pvt_url_scheme2tls( lud->lud_scheme ) ) {
821 Debug( LDAP_DEBUG_ANY,
822 "daemon: TLS not supported (%s)\n",
824 ldap_free_urldesc( lud );
828 if(! lud->lud_port ) {
829 lud->lud_port = LDAP_PORT;
833 l.sl_is_tls = ldap_pvt_url_scheme2tls( lud->lud_scheme );
835 if(! lud->lud_port ) {
836 lud->lud_port = l.sl_is_tls ? LDAPS_PORT : LDAP_PORT;
840 port = (unsigned short) lud->lud_port;
842 tmp = ldap_pvt_url_scheme2proto(lud->lud_scheme);
843 if ( tmp == LDAP_PROTO_IPC ) {
845 if ( lud->lud_host == NULL || lud->lud_host[0] == '\0' ) {
846 err = slap_get_listener_addresses(LDAPI_SOCK, 0, &sal);
848 err = slap_get_listener_addresses(lud->lud_host, 0, &sal);
852 Debug( LDAP_DEBUG_ANY, "daemon: URL scheme not supported: %s",
854 ldap_free_urldesc( lud );
858 if( lud->lud_host == NULL || lud->lud_host[0] == '\0'
859 || strcmp(lud->lud_host, "*") == 0 )
861 err = slap_get_listener_addresses(NULL, port, &sal);
863 err = slap_get_listener_addresses(lud->lud_host, port, &sal);
866 #ifdef LDAP_CONNECTIONLESS
867 l.sl_is_udp = ( tmp == LDAP_PROTO_UDP );
870 #if defined(LDAP_PF_LOCAL) || defined(SLAP_X_LISTENER_MOD)
871 if ( lud->lud_exts ) {
872 err = get_url_perms( lud->lud_exts, &l.sl_perms, &crit );
874 l.sl_perms = S_IRWXU | S_IRWXO;
876 #endif /* LDAP_PF_LOCAL || SLAP_X_LISTENER_MOD */
878 ldap_free_urldesc( lud );
883 /* If we got more than one address returned, we need to make space
884 * for it in the slap_listeners array.
886 for ( num=0; sal[num]; num++ );
889 slap_listeners = ch_realloc( slap_listeners, (*listeners + 1) * sizeof(Listener *) );
893 while ( *sal != NULL ) {
895 switch( (*sal)->sa_family ) {
913 #ifdef LDAP_CONNECTIONLESS
914 if( l.sl_is_udp ) socktype = SOCK_DGRAM;
916 l.sl_sd = socket( (*sal)->sa_family, socktype, 0);
917 if ( l.sl_sd == AC_SOCKET_INVALID ) {
918 int err = sock_errno();
919 Debug( LDAP_DEBUG_ANY,
920 "daemon: %s socket() failed errno=%d (%s)\n",
921 af, err, sock_errstr(err) );
926 if ( l.sl_sd >= dtblsize ) {
927 Debug( LDAP_DEBUG_ANY,
928 "daemon: listener descriptor %ld is too great %ld\n",
929 (long) l.sl_sd, (long) dtblsize, 0 );
930 tcp_close( l.sl_sd );
936 if ( (*sal)->sa_family == AF_LOCAL ) {
937 unlink ( ((struct sockaddr_un *)*sal)->sun_path );
942 /* enable address reuse */
944 rc = setsockopt( l.sl_sd, SOL_SOCKET, SO_REUSEADDR,
945 (char *) &tmp, sizeof(tmp) );
946 if ( rc == AC_SOCKET_ERROR ) {
947 int err = sock_errno();
948 Debug( LDAP_DEBUG_ANY,
949 "slapd(%ld): setsockopt(SO_REUSEADDR) failed errno=%d (%s)\n",
950 (long) l.sl_sd, err, sock_errstr(err) );
955 switch( (*sal)->sa_family ) {
957 addrlen = sizeof(struct sockaddr_in);
962 /* Try to use IPv6 sockets for IPv6 only */
964 rc = setsockopt( l.sl_sd, IPPROTO_IPV6, IPV6_V6ONLY,
965 (char *) &tmp, sizeof(tmp) );
966 if ( rc == AC_SOCKET_ERROR ) {
967 int err = sock_errno();
968 Debug( LDAP_DEBUG_ANY,
969 "slapd(%ld): setsockopt(IPV6_V6ONLY) failed errno=%d (%s)\n",
970 (long) l.sl_sd, err, sock_errstr(err) );
973 addrlen = sizeof(struct sockaddr_in6);
978 addrlen = sizeof(struct sockaddr_un);
983 if (bind(l.sl_sd, *sal, addrlen)) {
985 Debug( LDAP_DEBUG_ANY, "daemon: bind(%ld) failed errno=%d (%s)\n",
986 (long) l.sl_sd, err, sock_errstr(err) );
987 tcp_close( l.sl_sd );
992 switch ( (*sal)->sa_family ) {
995 char *addr = ((struct sockaddr_un *)*sal)->sun_path;
996 #if 0 /* don't muck with socket perms */
997 if ( chmod( addr, l.sl_perms ) < 0 && crit ) {
998 int err = sock_errno();
999 Debug( LDAP_DEBUG_ANY, "daemon: fchmod(%ld) failed errno=%d (%s)",
1000 (long) l.sl_sd, err, sock_errstr(err) );
1001 tcp_close( l.sl_sd );
1002 slap_free_listener_addresses(psal);
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 sizeof("uidnumber=4294967295+gidnumber=4294967295,"
1364 "cn=peercred,cn=external,cn=auth"));
1365 authid.bv_len = sprintf( authid.bv_val,
1366 "uidnumber=%d+gidnumber=%d,"
1367 "cn=peercred,cn=external,cn=auth",
1368 (int) uid, (int) gid);
1373 #endif /* LDAP_PF_LOCAL */
1375 # ifdef LDAP_PF_INET6
1377 if ( IN6_IS_ADDR_V4MAPPED(&from.sa_in6_addr.sin6_addr) ) {
1378 peeraddr = inet_ntoa( *((struct in_addr *)
1379 &from.sa_in6_addr.sin6_addr.s6_addr[12]) );
1380 sprintf( peername, "IP=%s:%d",
1381 peeraddr != NULL ? peeraddr : SLAP_STRING_UNKNOWN,
1382 (unsigned) ntohs( from.sa_in6_addr.sin6_port ) );
1384 char addr[INET6_ADDRSTRLEN];
1386 peeraddr = (char *) inet_ntop( AF_INET6,
1387 &from.sa_in6_addr.sin6_addr,
1388 addr, sizeof addr );
1389 sprintf( peername, "IP=%s %d",
1390 peeraddr != NULL ? peeraddr : SLAP_STRING_UNKNOWN,
1391 (unsigned) ntohs( from.sa_in6_addr.sin6_port ) );
1394 # endif /* LDAP_PF_INET6 */
1397 peeraddr = inet_ntoa( from.sa_in_addr.sin_addr );
1398 sprintf( peername, "IP=%s:%d",
1399 peeraddr != NULL ? peeraddr : SLAP_STRING_UNKNOWN,
1400 (unsigned) ntohs( from.sa_in_addr.sin_port ) );
1408 if ( ( from.sa_addr.sa_family == AF_INET )
1409 #ifdef LDAP_PF_INET6
1410 || ( from.sa_addr.sa_family == AF_INET6 )
1413 #ifdef SLAPD_RLOOKUPS
1414 if ( use_reverse_lookup ) {
1416 if (ldap_pvt_get_hname( (const struct sockaddr *)&from, len, hbuf,
1417 sizeof(hbuf), &herr ) == 0) {
1418 ldap_pvt_str2lower( hbuf );
1424 #endif /* SLAPD_RLOOKUPS */
1427 if ( !hosts_ctl("slapd",
1428 dnsname != NULL ? dnsname : SLAP_STRING_UNKNOWN,
1429 peeraddr != NULL ? peeraddr : SLAP_STRING_UNKNOWN,
1430 SLAP_STRING_UNKNOWN ))
1433 Statslog( LDAP_DEBUG_STATS,
1434 "fd=%ld DENIED from %s (%s)\n",
1436 dnsname != NULL ? dnsname : SLAP_STRING_UNKNOWN,
1437 peeraddr != NULL ? peeraddr : SLAP_STRING_UNKNOWN,
1442 #endif /* HAVE_TCPD */
1445 id = connection_init(s, sl,
1446 dnsname != NULL ? dnsname : SLAP_STRING_UNKNOWN,
1449 sl->sl_is_tls ? CONN_IS_TLS : 0,
1454 authid.bv_val ? &authid : NULL );
1456 if( authid.bv_val ) ch_free(authid.bv_val);
1459 Debug( LDAP_DEBUG_ANY,
1460 "daemon: connection_init(%ld, %s, %s) failed.\n",
1461 (long) s, peername, sl->sl_name.bv_val );
1466 Statslog( LDAP_DEBUG_STATS,
1467 "conn=%ld fd=%ld ACCEPT from %s (%s)\n",
1468 id, (long) s, peername, sl->sl_name.bv_val,
1471 slapd_add( s, 1, NULL );
1481 time_t last_idle_check = 0;
1482 struct timeval idle;
1484 #define SLAPD_IDLE_CHECK_LIMIT 4
1486 if ( global_idletimeout > 0 ) {
1487 last_idle_check = slap_get_time();
1488 /* Set the select timeout.
1489 * Don't just truncate, preserve the fractions of
1490 * seconds to prevent sleeping for zero time.
1492 idle.tv_sec = global_idletimeout/SLAPD_IDLE_CHECK_LIMIT;
1493 idle.tv_usec = global_idletimeout - idle.tv_sec * SLAPD_IDLE_CHECK_LIMIT;
1494 idle.tv_usec *= 1000000 / SLAPD_IDLE_CHECK_LIMIT;
1500 slapd_add( wake_sds[0], 0, NULL );
1502 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1503 if ( slap_listeners[l]->sl_sd == AC_SOCKET_INVALID )
1505 #ifdef LDAP_CONNECTIONLESS
1506 /* Since this is connectionless, the data port is the
1507 * listening port. The listen() and accept() calls
1510 if ( slap_listeners[l]->sl_is_udp ) {
1511 slapd_add( slap_listeners[l]->sl_sd, 1, slap_listeners[l] );
1516 if ( listen( slap_listeners[l]->sl_sd, SLAPD_LISTEN ) == -1 ) {
1517 int err = sock_errno();
1519 #ifdef LDAP_PF_INET6
1520 /* If error is EADDRINUSE, we are trying to listen to INADDR_ANY and
1521 * we are already listening to in6addr_any, then we want to ignore
1522 * this and continue.
1524 if ( err == EADDRINUSE ) {
1526 struct sockaddr_in sa = slap_listeners[l]->sl_sa.sa_in_addr;
1527 struct sockaddr_in6 sa6;
1529 if ( sa.sin_family == AF_INET &&
1530 sa.sin_addr.s_addr == htonl(INADDR_ANY) ) {
1531 for ( i = 0 ; i < l; i++ ) {
1532 sa6 = slap_listeners[i]->sl_sa.sa_in6_addr;
1533 if ( sa6.sin6_family == AF_INET6 &&
1534 !memcmp( &sa6.sin6_addr, &in6addr_any, sizeof(struct in6_addr) ) )
1539 /* We are already listening to in6addr_any */
1540 Debug( LDAP_DEBUG_CONNS,
1541 "daemon: Attempt to listen to 0.0.0.0 failed, already listening on ::, assuming IPv4 included\n",
1543 slapd_close( slap_listeners[l]->sl_sd );
1544 slap_listeners[l]->sl_sd = AC_SOCKET_INVALID;
1550 Debug( LDAP_DEBUG_ANY,
1551 "daemon: listen(%s, 5) failed errno=%d (%s)\n",
1552 slap_listeners[l]->sl_url.bv_val, err,
1554 return( (void*)-1 );
1557 slapd_add( slap_listeners[l]->sl_sd, 0, slap_listeners[l] );
1560 #ifdef HAVE_NT_SERVICE_MANAGER
1561 if ( started_event != NULL ) {
1562 ldap_pvt_thread_cond_signal( &started_event );
1565 /* initialization complete. Here comes the loop. */
1567 while ( !slapd_shutdown ) {
1571 ber_socket_t nfds, nrfds, nwfds;
1572 #define SLAPD_EBADF_LIMIT 16
1580 struct timeval *tvp;
1582 struct timeval *cat;
1585 now = slap_get_time();
1587 if( ( global_idletimeout > 0 ) &&
1588 difftime( last_idle_check +
1589 global_idletimeout/SLAPD_IDLE_CHECK_LIMIT, now ) < 0 ) {
1590 connections_timeout_idle( now );
1591 last_idle_check = now;
1596 if( slapd_gentle_shutdown ) {
1597 ber_socket_t active;
1599 if( slapd_gentle_shutdown == 1 ) {
1600 Debug( LDAP_DEBUG_ANY, "slapd gentle shutdown\n", 0, 0, 0 );
1601 close_listeners( 1 );
1602 frontendDB->be_restrictops |= SLAP_RESTRICT_OP_WRITES;
1603 slapd_gentle_shutdown = 2;
1606 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
1607 active = slap_daemon.sd_nactives;
1608 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
1618 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
1620 nwriters = slap_daemon.sd_nwriters;
1623 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1624 if ( slap_listeners[l]->sl_sd == AC_SOCKET_INVALID )
1626 if ( slap_listeners[l]->sl_is_mute )
1627 SLAP_SOCK_SET_MUTE( slap_listeners[l]->sl_sd );
1629 if ( SLAP_SOCK_IS_MUTE( slap_listeners[l]->sl_sd ))
1630 SLAP_SOCK_CLR_MUTE( slap_listeners[l]->sl_sd );
1633 nfds = SLAP_EVENT_MAX;
1635 if ( global_idletimeout && slap_daemon.sd_nactives )
1638 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
1641 #if defined(HAVE_YIELDING_SELECT) || defined(NO_THREADS)
1642 && ( tv.tv_sec || tv.tv_usec )
1649 ldap_pvt_thread_mutex_lock( &syncrepl_rq.rq_mutex );
1650 rtask = ldap_pvt_runqueue_next_sched( &syncrepl_rq, &cat );
1651 while ( cat && cat->tv_sec && cat->tv_sec <= now ) {
1652 if ( ldap_pvt_runqueue_isrunning( &syncrepl_rq, rtask )) {
1653 ldap_pvt_runqueue_resched( &syncrepl_rq, rtask, 0 );
1655 ldap_pvt_runqueue_runtask( &syncrepl_rq, rtask );
1656 ldap_pvt_runqueue_resched( &syncrepl_rq, rtask, 0 );
1657 ldap_pvt_thread_mutex_unlock( &syncrepl_rq.rq_mutex );
1658 ldap_pvt_thread_pool_submit( &connection_pool,
1659 rtask->routine, (void *) rtask );
1660 ldap_pvt_thread_mutex_lock( &syncrepl_rq.rq_mutex );
1662 rtask = ldap_pvt_runqueue_next_sched( &syncrepl_rq, &cat );
1664 ldap_pvt_thread_mutex_unlock( &syncrepl_rq.rq_mutex );
1666 if ( cat != NULL ) {
1667 time_t diff = difftime( cat->tv_sec, now );
1670 if ( tvp == NULL || diff < tv.tv_sec ) {
1677 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1678 if ( slap_listeners[l]->sl_sd == AC_SOCKET_INVALID ||
1679 slap_listeners[l]->sl_is_mute )
1682 Debug( LDAP_DEBUG_CONNS,
1683 "daemon: select: listen=%d active_threads=%d tvp=%s\n",
1684 slap_listeners[l]->sl_sd, at,
1685 tvp == NULL ? "NULL" : "zero" );
1688 switch(ns = SLAP_EVENT_WAIT(tvp))
1690 case -1: { /* failure - try again */
1691 int err = sock_errno();
1695 /* you'd think this would be EBADF */
1696 || err == WSAENOTSOCK
1699 if (++ebadf < SLAPD_EBADF_LIMIT)
1703 if( err != EINTR ) {
1704 Debug( LDAP_DEBUG_CONNS,
1705 "daemon: select failed (%d): %s\n",
1706 err, sock_errstr(err), 0 );
1712 case 0: /* timeout - let threads run */
1714 Debug( LDAP_DEBUG_CONNS, "daemon: select timeout - yielding\n",
1717 ldap_pvt_thread_yield();
1720 default: /* something happened - deal with it */
1721 if( slapd_shutdown ) continue;
1724 Debug( LDAP_DEBUG_CONNS, "daemon: activity on %d descriptors\n",
1729 /* We don't need to examine the event status for wake_sds;
1730 * if waking is set and we woke up, we'll read whatever
1735 tcp_read( wake_sds[0], c, sizeof(c) );
1741 #if SLAP_EVENTS_ARE_INDEXED
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 );
1849 for ( i = 0; nrfds > 0; i++ )
1853 rd = readfds.fd_array[i];
1855 if( ! SLAP_EVENT_IS_READ( i ) ) {
1862 Debug ( LDAP_DEBUG_CONNS,
1863 "daemon: read activity on %d\n", rd, 0, 0 );
1865 * NOTE: it is possible that the connection was closed
1866 * and that the stream is now inactive.
1867 * connection_read() must valid the stream is still
1871 if ( connection_read( rd ) < 0 ) {
1875 #else /* !SLAP_EVENTS_ARE_INDEXED */
1877 /* The events are returned in an arbitrary list. This is true
1878 * for /dev/poll, epoll and kqueue. In order to prioritize things
1879 * so that we can handle wake_sds first, listeners second, and then
1880 * all other connections last (as we do for select), we would need
1881 * to use multiple event handles and cascade them.
1883 * That seems like a bit of hassle. So the wake_sds check has moved
1884 * above. For epoll and kqueue we can associate arbitrary data with
1885 * an event, so we could use pointers to the listener structure
1886 * instead of just the file descriptor. For /dev/poll we have to
1887 * search the listeners array for a matching descriptor.
1890 Debug( LDAP_DEBUG_CONNS, "daemon: activity on:", 0, 0, 0 );
1892 for (i=0; i<ns; i++) {
1895 if ( SLAP_EVENT_IS_LISTENER(i)
1896 #ifdef LDAP_CONNECTIONLESS
1897 && !((SLAP_EVENT_LISTENER(i))->sl_is_udp)
1901 r = SLAP_EVENT_IS_READ( i );
1902 w = SLAP_EVENT_IS_WRITE( i );
1904 Debug( LDAP_DEBUG_CONNS, " %d%s%s", SLAP_EVENT_FD(i),
1905 r ? "r" : "", w ? "w" : "" );
1909 for (i=0; i<ns; i++) {
1912 if ( SLAP_EVENT_IS_LISTENER(i) ) {
1913 rc = slapd_handle_listener( SLAP_EVENT_LISTENER( i ));
1915 /* If we found a regular listener, rc is now zero, and we
1916 * can skip the data portion. But if it was a UDP listener
1917 * then rc is still 1, and we want to handle the data.
1920 fd = SLAP_EVENT_FD( i );
1922 if( SLAP_EVENT_IS_WRITE( i ) ) {
1923 Debug( LDAP_DEBUG_CONNS,
1924 "daemon: write active on %d\n",
1927 * NOTE: it is possible that the connection was closed
1928 * and that the stream is now inactive.
1929 * connection_write() must valid the stream is still
1933 if ( connection_write( fd ) < 0 ) {
1938 if( SLAP_EVENT_IS_READ( i ) ) {
1939 Debug( LDAP_DEBUG_CONNS,
1940 "daemon: read active on %d\n",
1943 * NOTE: it is possible that the connection was closed
1944 * and that the stream is now inactive.
1945 * connection_read() must valid the stream is still
1949 if ( connection_read( fd ) < 0 ) {
1955 #endif /* SLAP_EVENTS_ARE_INDEXED */
1957 ldap_pvt_thread_yield();
1960 if( slapd_shutdown == 1 ) {
1961 Debug( LDAP_DEBUG_TRACE,
1962 "daemon: shutdown requested and initiated.\n",
1965 } else if ( slapd_shutdown == 2 ) {
1966 #ifdef HAVE_NT_SERVICE_MANAGER
1967 Debug( LDAP_DEBUG_TRACE,
1968 "daemon: shutdown initiated by Service Manager.\n",
1970 #else /* !HAVE_NT_SERVICE_MANAGER */
1971 Debug( LDAP_DEBUG_TRACE,
1972 "daemon: abnormal condition, shutdown initiated.\n",
1974 #endif /* !HAVE_NT_SERVICE_MANAGER */
1976 Debug( LDAP_DEBUG_TRACE,
1977 "daemon: no active streams, shutdown initiated.\n",
1981 if( slapd_gentle_shutdown != 2 ) {
1982 close_listeners ( 0 );
1985 free ( slap_listeners );
1986 slap_listeners = NULL;
1988 if( !slapd_gentle_shutdown ) {
1989 slapd_abrupt_shutdown = 1;
1990 connections_shutdown();
1993 Debug( LDAP_DEBUG_ANY,
1994 "slapd shutdown: waiting for %d threads to terminate\n",
1995 ldap_pvt_thread_pool_backload(&connection_pool), 0, 0 );
1996 ldap_pvt_thread_pool_destroy(&connection_pool, 1);
2002 int slapd_daemon( void )
2008 #define SLAPD_LISTENER_THREAD 1
2009 #if defined( SLAPD_LISTENER_THREAD )
2011 ldap_pvt_thread_t listener_tid;
2013 /* listener as a separate THREAD */
2014 rc = ldap_pvt_thread_create( &listener_tid,
2015 0, slapd_daemon_task, NULL );
2018 Debug( LDAP_DEBUG_ANY,
2019 "listener ldap_pvt_thread_create failed (%d)\n", rc, 0, 0 );
2023 /* wait for the listener thread to complete */
2024 ldap_pvt_thread_join( listener_tid, (void *) NULL );
2027 /* experimental code */
2028 slapd_daemon_task( NULL );
2037 #if defined( HAVE_WINSOCK2 )
2038 WORD wVersionRequested;
2042 wVersionRequested = MAKEWORD( 2, 0 );
2044 err = WSAStartup( wVersionRequested, &wsaData );
2046 /* Tell the user that we couldn't find a usable */
2051 /* Confirm that the WinSock DLL supports 2.0.*/
2052 /* Note that if the DLL supports versions greater */
2053 /* than 2.0 in addition to 2.0, it will still return */
2054 /* 2.0 in wVersion since that is the version we */
2057 if ( LOBYTE( wsaData.wVersion ) != 2 ||
2058 HIBYTE( wsaData.wVersion ) != 0 )
2060 /* Tell the user that we couldn't find a usable */
2066 /* The WinSock DLL is acceptable. Proceed. */
2067 #elif defined( HAVE_WINSOCK )
2069 if ( WSAStartup( 0x0101, &wsaData ) != 0 ) {
2076 int sockdestroy(void)
2078 #if defined( HAVE_WINSOCK2 ) || defined( HAVE_WINSOCK )
2085 slap_sig_shutdown( int sig )
2088 Debug(LDAP_DEBUG_TRACE, "slap_sig_shutdown: signal %d\n", sig, 0, 0);
2092 * If the NT Service Manager is controlling the server, we don't
2093 * want SIGBREAK to kill the server. For some strange reason,
2094 * SIGBREAK is generated when a user logs out.
2097 #if HAVE_NT_SERVICE_MANAGER && SIGBREAK
2098 if (is_NT_Service && sig == SIGBREAK)
2103 if (sig == SIGHUP && global_gentlehup && slapd_gentle_shutdown == 0)
2104 slapd_gentle_shutdown = 1;
2110 /* reinstall self */
2111 (void) SIGNAL_REINSTALL( sig, slap_sig_shutdown );
2115 slap_sig_wake( int sig )
2119 /* reinstall self */
2120 (void) SIGNAL_REINSTALL( sig, slap_sig_wake );
2124 void slapd_add_internal(ber_socket_t s, int isactive) {
2125 slapd_add(s, isactive, NULL);
2128 Listener ** slapd_get_listeners(void) {
2129 return slap_listeners;
2132 void slap_wake_listener()