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"
45 #if defined(HAVE_SYS_EPOLL_H) && defined(HAVE_EPOLL)
46 #include <sys/epoll.h>
51 #define SLAP_STRING_UNKNOWN STRING_UNKNOWN
53 int allow_severity = LOG_INFO;
54 int deny_severity = LOG_NOTICE;
55 #else /* ! TCP Wrappers */
56 #define SLAP_STRING_UNKNOWN "unknown"
57 #endif /* ! TCP Wrappers */
61 /* this should go in <ldap.h> as soon as it is accepted */
62 #define LDAPI_MOD_URLEXT "x-mod"
63 #endif /* LDAP_PF_LOCAL */
66 int slap_inet4or6 = AF_UNSPEC;
68 int slap_inet4or6 = AF_INET;
73 ber_socket_t dtblsize;
74 slap_ssf_t local_ssf = LDAP_PVT_SASL_LOCAL_SSF;
76 Listener **slap_listeners = NULL;
78 #define SLAPD_LISTEN 10
80 static ber_socket_t wake_sds[2];
84 #define WAKE_LISTENER(w) \
85 do { if (w && waking < 5) { waking++; tcp_write( wake_sds[1], "0", 1 ); } } while(0)
87 volatile sig_atomic_t slapd_shutdown = 0, slapd_gentle_shutdown = 0;
88 volatile sig_atomic_t slapd_abrupt_shutdown = 0;
90 static struct slap_daemon {
91 ldap_pvt_thread_mutex_t sd_mutex;
93 ber_socket_t sd_nactives;
97 struct epoll_event *sd_epolls;
105 /* In winsock, accept() returns values higher than dtblsize
106 so don't bother with this optimization */
117 #define SLAP_EVENTS_ARE_INDEXED 0
118 #define SLAP_SOCK_IX(s) (slap_daemon.sd_index[s])
119 #define SLAP_SOCK_EP(s) (slap_daemon.sd_epolls[SLAP_SOCK_IX(s)])
120 #define SLAP_SOCK_EV(s) (SLAP_SOCK_EP(s).events)
121 #define SLAP_SOCK_IS_ACTIVE(s) (SLAP_SOCK_IX(s) != -1)
122 #define SLAP_SOCK_NOT_ACTIVE(s) (SLAP_SOCK_IX(s) == -1)
123 #define SLAP_SOCK_IS_SET(s, mode) (SLAP_SOCK_EV(s) & mode)
125 #define SLAP_SOCK_IS_READ(s) SLAP_SOCK_IS_SET(s, EPOLLIN)
126 #define SLAP_SOCK_IS_WRITE(s) SLAP_SOCK_IS_SET(s, EPOLLOUT)
128 #define SLAP_SET_SOCK(s, mode) do { \
129 if ((SLAP_SOCK_EV(s) & mode) != mode) { \
130 SLAP_SOCK_EV(s) |= mode; \
131 epoll_ctl(slap_daemon.sd_epfd, EPOLL_CTL_MOD, s, \
136 #define SLAP_CLR_SOCK(s, mode) do { \
137 if ((SLAP_SOCK_EV(s) & mode)) { \
138 SLAP_SOCK_EV(s) &= ~mode; \
139 epoll_ctl(slap_daemon.sd_epfd, EPOLL_CTL_MOD, s, \
144 #define SLAP_SOCK_SET_READ(s) SLAP_SET_SOCK(s, EPOLLIN)
145 #define SLAP_SOCK_SET_WRITE(s) SLAP_SET_SOCK(s, EPOLLOUT)
147 #define SLAP_SOCK_CLR_READ(s) SLAP_CLR_SOCK(s, EPOLLIN)
148 #define SLAP_SOCK_CLR_WRITE(s) SLAP_CLR_SOCK(s, EPOLLOUT)
150 #define SLAP_CLR_EVENT(i, mode) (revents[i].events &= ~mode)
153 #define SLAP_EVENT_MAX slap_daemon.sd_nfds
155 /* If a Listener address is provided, store that as the epoll data.
156 * Otherwise, store the address of this socket's slot in the
157 * index array. If we can't do this add, the system is out of
158 * resources and we need to shutdown.
160 #define SLAP_ADD_SOCK(s, l) do { \
162 SLAP_SOCK_IX(s) = slap_daemon.sd_nfds; \
163 SLAP_SOCK_EP(s).data.ptr = (l) ? (l) : (void *)(&SLAP_SOCK_IX(s)); \
164 SLAP_SOCK_EV(s) = EPOLLIN; \
165 rc = epoll_ctl(slap_daemon.sd_epfd, EPOLL_CTL_ADD, s, \
167 if ( rc == 0 ) slap_daemon.sd_nfds++; \
169 Debug( LDAP_DEBUG_ANY, "daemon: epoll_ctl ADD failed, errno %d, shutting down\n", \
171 slapd_shutdown = 2; \
175 #define SLAP_EV_LISTENER(ptr) (((int *)(ptr) >= slap_daemon.sd_index && \
176 (int *)(ptr) <= (slap_daemon.sd_index+dtblsize)) ? 0 : 1)
178 #define SLAP_EV_PTRFD(ptr) (SLAP_EV_LISTENER(ptr) ? \
179 ((Listener *)ptr)->sl_sd : (int *)(ptr) - slap_daemon.sd_index)
181 #define SLAP_DEL_SOCK(s) do { \
182 int fd, rc, index = SLAP_SOCK_IX(s); \
183 rc = epoll_ctl(slap_daemon.sd_epfd, EPOLL_CTL_DEL, s, \
185 slap_daemon.sd_epolls[index] = slap_daemon.sd_epolls[slap_daemon.sd_nfds-1]; \
186 fd = SLAP_EV_PTRFD(slap_daemon.sd_epolls[index].data.ptr); \
187 slap_daemon.sd_index[fd] = index; \
188 slap_daemon.sd_index[s] = -1; \
189 slap_daemon.sd_nfds--; \
192 #define SLAP_EVENT_CLR_READ(i) SLAP_CLR_EVENT(i, EPOLLIN)
193 #define SLAP_EVENT_CLR_WRITE(i) SLAP_CLR_EVENT(i, EPOLLOUT)
195 #define SLAP_CHK_EVENT(i, mode) (revents[i].events & mode)
197 #define SLAP_EVENT_IS_READ(i) SLAP_CHK_EVENT(i, EPOLLIN)
198 #define SLAP_EVENT_IS_WRITE(i) SLAP_CHK_EVENT(i, EPOLLOUT)
199 #define SLAP_EVENT_IS_LISTENER(i) SLAP_EV_LISTENER(revents[i].data.ptr)
200 #define SLAP_EVENT_LISTENER(i) (revents[i].data.ptr)
202 #define SLAP_EVENT_FD(i) SLAP_EV_PTRFD(revents[i].data.ptr)
203 #define SLAP_SOCK_SET_MUTE(s) SLAP_SOCK_CLR_READ(s)
204 #define SLAP_SOCK_CLR_MUTE(s) SLAP_SOCK_SET_READ(s)
205 #define SLAP_SOCK_IS_MUTE(s) !SLAP_SOCK_IS_READ(s)
207 #define SLAP_SOCK_SET_INIT \
208 slap_daemon.sd_epolls = ch_malloc(sizeof(struct epoll_event) * dtblsize * 2); \
209 slap_daemon.sd_index = ch_malloc(sizeof(int) * dtblsize); \
210 slap_daemon.sd_epfd = epoll_create( dtblsize ); \
211 for (i=0; i<dtblsize; i++) slap_daemon.sd_index[i] = -1
214 #define SLAP_EVENT_DECL \
215 struct epoll_event *revents
217 #define SLAP_EVENT_INIT \
218 revents = slap_daemon.sd_epolls + dtblsize; \
220 #define SLAP_EVENT_WAIT(tvp) \
221 epoll_wait( slap_daemon.sd_epfd, revents, dtblsize, tvp ? tvp->tv_sec * 1000 : -1 )
226 #define SLAP_EVENTS_ARE_INDEXED 1
227 #define SLAP_EVENT_DECL \
228 fd_set readfds, writefds
230 #define SLAP_EVENT_INIT \
231 AC_MEMCPY( &readfds, &slap_daemon.sd_readers, sizeof(fd_set) ); \
233 AC_MEMCPY( &writefds, &slap_daemon.sd_writers, sizeof(fd_set) )
236 #define CHK_SETSIZE \
237 if (dtblsize > FD_SETSIZE) dtblsize = FD_SETSIZE
242 #define SLAP_SOCK_SET_INIT \
244 FD_ZERO(&slap_daemon.sd_readers); \
245 FD_ZERO(&slap_daemon.sd_writers)
247 #define SLAP_SOCK_IS_ACTIVE(fd) FD_ISSET(fd, &slap_daemon.sd_actives)
249 #define SLAP_SOCK_IS_READ(fd) FD_ISSET(fd, &slap_daemon.sd_readers)
250 #define SLAP_SOCK_IS_WRITE(fd) FD_ISSET(fd, &slap_daemon.sd_writers)
252 #define SLAP_SOCK_NOT_ACTIVE(fd) (!SLAP_SOCK_IS_ACTIVE(fd) && \
253 !SLAP_SOCK_IS_READ(fd) && !SLAP_SOCK_IS_WRITE(fd))
256 #define SLAP_SOCK_SET_READ(fd) do { \
257 if (!SLAP_SOCK_IS_READ(fd)) {FD_SET(fd, &slap_daemon.sd_readers);} \
259 #define SLAP_SOCK_SET_WRITE(fd) do { \
260 if (!SLAP_SOCK_IS_WRITE(fd)) {FD_SET(fd, &slap_daemon.sd_writers);} \
263 #define SLAP_ADDTEST(s)
264 #define SLAP_EVENT_MAX dtblsize
266 #define SLAP_SOCK_SET_READ(fd) FD_SET(fd, &slap_daemon.sd_readers)
267 #define SLAP_SOCK_SET_WRITE(fd) FD_SET(fd, &slap_daemon.sd_writers)
269 #define SLAP_EVENT_MAX slap_daemon.sd_nfds
270 #define SLAP_ADDTEST(s) if (s >= slap_daemon.sd_nfds) slap_daemon.sd_nfds = s+1
273 #define SLAP_SOCK_CLR_READ(fd) FD_CLR(fd, &slap_daemon.sd_readers)
274 #define SLAP_SOCK_CLR_WRITE(fd) FD_CLR(fd, &slap_daemon.sd_writers)
276 #define SLAP_ADD_SOCK(s, l) do { \
278 FD_SET(s, &slap_daemon.sd_actives); \
279 FD_SET(s, &slap_daemon.sd_readers); \
282 #define SLAP_DEL_SOCK(s) do { \
283 FD_CLR(s, &slap_daemon.sd_actives); \
284 FD_CLR(s, &slap_daemon.sd_readers); \
285 FD_CLR(s, &slap_daemon.sd_writers); \
288 #define SLAP_EVENT_IS_READ(fd) FD_ISSET(fd, &readfds)
289 #define SLAP_EVENT_IS_WRITE(fd) FD_ISSET(fd, &writefds)
291 #define SLAP_EVENT_CLR_READ(fd) FD_CLR(fd, &readfds)
292 #define SLAP_EVENT_CLR_WRITE(fd) FD_CLR(fd, &writefds)
294 #define SLAP_EVENT_WAIT(tvp) \
295 select( SLAP_EVENT_MAX, &readfds, \
296 nwriters > 0 ? &writefds : NULL, NULL, tvp )
298 #define SLAP_SOCK_SET_MUTE(s) FD_CLR(s, &readfds)
299 #define SLAP_SOCK_CLR_MUTE(s) FD_SET(s, &readfds)
300 #define SLAP_SOCK_IS_MUTE(s) FD_ISSET(s, &readfds)
307 * SLP related functions
311 #define LDAP_SRVTYPE_PREFIX "service:ldap://"
312 #define LDAPS_SRVTYPE_PREFIX "service:ldaps://"
313 static char** slapd_srvurls = NULL;
314 static SLPHandle slapd_hslp = 0;
315 int slapd_register_slp = 0;
317 void slapd_slp_init( const char* urls ) {
320 slapd_srvurls = ldap_str2charray( urls, " " );
322 if( slapd_srvurls == NULL ) return;
324 /* find and expand INADDR_ANY URLs */
325 for( i=0; slapd_srvurls[i] != NULL; i++ ) {
326 if( strcmp( slapd_srvurls[i], "ldap:///" ) == 0) {
327 char *host = ldap_pvt_get_fqdn( NULL );
328 if ( host != NULL ) {
329 slapd_srvurls[i] = (char *) ch_realloc( slapd_srvurls[i],
331 sizeof( LDAP_SRVTYPE_PREFIX ) );
332 strcpy( lutil_strcopy(slapd_srvurls[i],
333 LDAP_SRVTYPE_PREFIX ), host );
338 } else if ( strcmp( slapd_srvurls[i], "ldaps:///" ) == 0) {
339 char *host = ldap_pvt_get_fqdn( NULL );
340 if ( host != NULL ) {
341 slapd_srvurls[i] = (char *) ch_realloc( slapd_srvurls[i],
343 sizeof( LDAPS_SRVTYPE_PREFIX ) );
344 strcpy( lutil_strcopy(slapd_srvurls[i],
345 LDAPS_SRVTYPE_PREFIX ), host );
352 /* open the SLP handle */
353 SLPOpen( "en", 0, &slapd_hslp );
356 void slapd_slp_deinit() {
357 if( slapd_srvurls == NULL ) return;
359 ldap_charray_free( slapd_srvurls );
360 slapd_srvurls = NULL;
362 /* close the SLP handle */
363 SLPClose( slapd_hslp );
366 void slapd_slp_regreport(
374 void slapd_slp_reg() {
377 if( slapd_srvurls == NULL ) return;
379 for( i=0; slapd_srvurls[i] != NULL; i++ ) {
380 if( strncmp( slapd_srvurls[i], LDAP_SRVTYPE_PREFIX,
381 sizeof( LDAP_SRVTYPE_PREFIX ) - 1 ) == 0 ||
382 strncmp( slapd_srvurls[i], LDAPS_SRVTYPE_PREFIX,
383 sizeof( LDAPS_SRVTYPE_PREFIX ) - 1 ) == 0 )
387 SLP_LIFETIME_MAXIMUM,
397 void slapd_slp_dereg() {
400 if( slapd_srvurls == NULL ) return;
402 for( i=0; slapd_srvurls[i] != NULL; i++ ) {
403 SLPDereg( slapd_hslp,
409 #endif /* HAVE_SLP */
412 * Add a descriptor to daemon control
414 * If isactive, the descriptor is a live server session and is subject
415 * to idletimeout control. Otherwise, the descriptor is a passive
416 * listener or an outbound client session, and not subject to
417 * idletimeout. The underlying event handler may record the Listener
418 * argument to differentiate Listener's from real sessions.
420 static void slapd_add(ber_socket_t s, int isactive, Listener *sl) {
421 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
423 assert( SLAP_SOCK_NOT_ACTIVE(s) );
426 slap_daemon.sd_nactives++;
429 SLAP_ADD_SOCK(s, sl);
431 Debug( LDAP_DEBUG_CONNS, "daemon: added %ldr\n",
433 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
437 * Remove the descriptor from daemon control
439 void slapd_remove(ber_socket_t s, int wasactive, int wake) {
441 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
444 slap_daemon.sd_nactives--;
446 waswriter = SLAP_SOCK_IS_WRITE(s);
448 Debug( LDAP_DEBUG_CONNS, "daemon: removing %ld%s%s\n",
449 (long) s, SLAP_SOCK_IS_READ(s) ? "r" : "",
450 waswriter ? "w" : "" );
451 if ( waswriter ) slap_daemon.sd_nwriters--;
455 /* If we ran out of file descriptors, we dropped a listener from
456 * the select() loop. Now that we're removing a session from our
457 * control, we can try to resume a dropped listener to use.
461 for ( i = 0; slap_listeners[i] != NULL; i++ ) {
462 if ( slap_listeners[i]->sl_sd != AC_SOCKET_INVALID ) {
463 if ( slap_listeners[i]->sl_sd == s ) continue;
464 if ( slap_listeners[i]->sl_is_mute ) {
465 slap_listeners[i]->sl_is_mute = 0;
471 /* Walked the entire list without enabling anything; emfile
472 * counter is stale. Reset it.
474 if ( slap_listeners[i] == NULL )
477 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
478 WAKE_LISTENER(wake || slapd_gentle_shutdown == 2);
481 void slapd_clr_write(ber_socket_t s, int wake) {
482 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
484 assert( SLAP_SOCK_IS_ACTIVE( s ));
485 if ( SLAP_SOCK_IS_WRITE( s )) {
486 SLAP_SOCK_CLR_WRITE( s );
487 slap_daemon.sd_nwriters--;
490 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
494 void slapd_set_write(ber_socket_t s, int wake) {
495 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
497 assert( SLAP_SOCK_IS_ACTIVE( s ));
498 if ( !SLAP_SOCK_IS_WRITE( s )) {
499 SLAP_SOCK_SET_WRITE( s );
500 slap_daemon.sd_nwriters++;
503 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
507 void slapd_clr_read(ber_socket_t s, int wake) {
508 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
510 assert( SLAP_SOCK_IS_ACTIVE( s ));
511 SLAP_SOCK_CLR_READ( s );
513 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
517 void slapd_set_read(ber_socket_t s, int wake) {
518 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
520 assert( SLAP_SOCK_IS_ACTIVE( s ));
521 if (!SLAP_SOCK_IS_READ( s ))
522 SLAP_SOCK_SET_READ( s );
524 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
528 static void slapd_close(ber_socket_t s) {
529 Debug( LDAP_DEBUG_CONNS, "daemon: closing %ld\n",
534 static void slap_free_listener_addresses(struct sockaddr **sal)
536 struct sockaddr **sap;
542 for (sap = sal; *sap != NULL; sap++) {
549 #if defined(LDAP_PF_LOCAL) || defined(SLAP_X_LISTENER_MOD)
550 static int get_url_perms(
562 for ( i = 0; exts[ i ]; i++ ) {
563 char *type = exts[ i ];
566 if ( type[ 0 ] == '!' ) {
571 if ( strncasecmp( type, LDAPI_MOD_URLEXT "=", sizeof(LDAPI_MOD_URLEXT "=") - 1 ) == 0 ) {
573 + ( sizeof(LDAPI_MOD_URLEXT "=") - 1 );
577 switch (strlen(value)) {
579 /* skip leading '0' */
580 if ( value[ 0 ] != '0' ) {
586 for ( j = 0; j < 3; j++) {
589 v = value[ j ] - '0';
591 if ( v < 0 || v > 7 ) {
600 for ( j = 1; j < 10; j++ ) {
601 static mode_t m[] = { 0,
602 S_IRUSR, S_IWUSR, S_IXUSR,
603 S_IRGRP, S_IWGRP, S_IXGRP,
604 S_IROTH, S_IWOTH, S_IXOTH
606 static char c[] = "-rwxrwxrwx";
608 if ( value[ j ] == c[ j ] ) {
611 } else if ( value[ j ] != '-' ) {
630 #endif /* LDAP_PF_LOCAL || SLAP_X_LISTENER_MOD */
632 /* port = 0 indicates AF_LOCAL */
633 static int slap_get_listener_addresses(
636 struct sockaddr ***sal)
638 struct sockaddr **sap;
642 *sal = ch_malloc(2 * sizeof(void *));
648 *sap = ch_malloc(sizeof(struct sockaddr_un));
654 (sizeof(((struct sockaddr_un *)*sap)->sun_path) - 1) ) {
655 Debug( LDAP_DEBUG_ANY,
656 "daemon: domain socket path (%s) too long in URL",
661 (void)memset( (void *)*sap, '\0', sizeof(struct sockaddr_un) );
662 (*sap)->sa_family = AF_LOCAL;
663 strcpy( ((struct sockaddr_un *)*sap)->sun_path, host );
667 #ifdef HAVE_GETADDRINFO
668 struct addrinfo hints, *res, *sai;
672 memset( &hints, '\0', sizeof(hints) );
673 hints.ai_flags = AI_PASSIVE;
674 hints.ai_socktype = SOCK_STREAM;
675 hints.ai_family = slap_inet4or6;
676 snprintf(serv, sizeof serv, "%d", port);
678 if ( (err = getaddrinfo(host, serv, &hints, &res)) ) {
679 Debug( LDAP_DEBUG_ANY, "daemon: getaddrinfo failed: %s\n",
680 AC_GAI_STRERROR(err), 0, 0);
685 for (n=2; (sai = sai->ai_next) != NULL; n++) {
688 *sal = ch_calloc(n, sizeof(void *));
696 for ( sai=res; sai; sai=sai->ai_next ) {
697 if( sai->ai_addr == NULL ) {
698 Debug( LDAP_DEBUG_ANY, "slap_get_listener_addresses: "
699 "getaddrinfo ai_addr is NULL?\n", 0, 0, 0 );
704 switch (sai->ai_family) {
705 # ifdef LDAP_PF_INET6
707 *sap = ch_malloc(sizeof(struct sockaddr_in6));
712 *(struct sockaddr_in6 *)*sap =
713 *((struct sockaddr_in6 *)sai->ai_addr);
717 *sap = ch_malloc(sizeof(struct sockaddr_in));
722 *(struct sockaddr_in *)*sap =
723 *((struct sockaddr_in *)sai->ai_addr);
731 (*sap)->sa_family = sai->ai_family;
741 struct hostent *he = NULL;
743 if ( host == NULL ) {
744 in.s_addr = htonl(INADDR_ANY);
746 } else if ( !inet_aton( host, &in ) ) {
747 he = gethostbyname( host );
749 Debug( LDAP_DEBUG_ANY,
750 "daemon: invalid host %s", host, 0, 0);
753 for (n = 0; he->h_addr_list[n]; n++) ;
756 *sal = ch_malloc((n+1) * sizeof(void *));
762 for ( i = 0; i<n; i++ ) {
763 sap[i] = ch_malloc(sizeof(struct sockaddr_in));
767 (void)memset( (void *)sap[i], '\0', sizeof(struct sockaddr_in) );
768 sap[i]->sa_family = AF_INET;
769 ((struct sockaddr_in *)sap[i])->sin_port = htons(port);
771 AC_MEMCPY( &((struct sockaddr_in *)sap[i])->sin_addr, he->h_addr_list[i], sizeof(struct in_addr) );
773 AC_MEMCPY( &((struct sockaddr_in *)sap[i])->sin_addr, &in, sizeof(struct in_addr) );
783 slap_free_listener_addresses(*sal);
787 static int slap_open_listener(
798 int err, addrlen = 0;
799 struct sockaddr **sal, **psal;
800 int socktype = SOCK_STREAM; /* default to COTS */
802 #if defined(LDAP_PF_LOCAL) || defined(SLAP_X_LISTENER_MOD)
807 #endif /* LDAP_PF_LOCAL || SLAP_X_LISTENER_MOD */
809 rc = ldap_url_parse( url, &lud );
811 if( rc != LDAP_URL_SUCCESS ) {
812 Debug( LDAP_DEBUG_ANY,
813 "daemon: listen URL \"%s\" parse error=%d\n",
818 l.sl_url.bv_val = NULL;
822 if( ldap_pvt_url_scheme2tls( lud->lud_scheme ) ) {
823 Debug( LDAP_DEBUG_ANY,
824 "daemon: TLS not supported (%s)\n",
826 ldap_free_urldesc( lud );
830 if(! lud->lud_port ) {
831 lud->lud_port = LDAP_PORT;
835 l.sl_is_tls = ldap_pvt_url_scheme2tls( lud->lud_scheme );
837 if(! lud->lud_port ) {
838 lud->lud_port = l.sl_is_tls ? LDAPS_PORT : LDAP_PORT;
842 port = (unsigned short) lud->lud_port;
844 tmp = ldap_pvt_url_scheme2proto(lud->lud_scheme);
845 if ( tmp == LDAP_PROTO_IPC ) {
847 if ( lud->lud_host == NULL || lud->lud_host[0] == '\0' ) {
848 err = slap_get_listener_addresses(LDAPI_SOCK, 0, &sal);
850 err = slap_get_listener_addresses(lud->lud_host, 0, &sal);
854 Debug( LDAP_DEBUG_ANY, "daemon: URL scheme not supported: %s",
856 ldap_free_urldesc( lud );
860 if( lud->lud_host == NULL || lud->lud_host[0] == '\0'
861 || strcmp(lud->lud_host, "*") == 0 )
863 err = slap_get_listener_addresses(NULL, port, &sal);
865 err = slap_get_listener_addresses(lud->lud_host, port, &sal);
868 #ifdef LDAP_CONNECTIONLESS
869 l.sl_is_udp = ( tmp == LDAP_PROTO_UDP );
872 #if defined(LDAP_PF_LOCAL) || defined(SLAP_X_LISTENER_MOD)
873 if ( lud->lud_exts ) {
874 err = get_url_perms( lud->lud_exts, &l.sl_perms, &crit );
876 l.sl_perms = S_IRWXU | S_IRWXO;
878 #endif /* LDAP_PF_LOCAL || SLAP_X_LISTENER_MOD */
880 ldap_free_urldesc( lud );
885 /* If we got more than one address returned, we need to make space
886 * for it in the slap_listeners array.
888 for ( num=0; sal[num]; num++ );
891 slap_listeners = ch_realloc( slap_listeners, (*listeners + 1) * sizeof(Listener *) );
895 while ( *sal != NULL ) {
897 switch( (*sal)->sa_family ) {
915 #ifdef LDAP_CONNECTIONLESS
916 if( l.sl_is_udp ) socktype = SOCK_DGRAM;
918 l.sl_sd = socket( (*sal)->sa_family, socktype, 0);
919 if ( l.sl_sd == AC_SOCKET_INVALID ) {
920 int err = sock_errno();
921 Debug( LDAP_DEBUG_ANY,
922 "daemon: %s socket() failed errno=%d (%s)\n",
923 af, err, sock_errstr(err) );
928 if ( l.sl_sd >= dtblsize ) {
929 Debug( LDAP_DEBUG_ANY,
930 "daemon: listener descriptor %ld is too great %ld\n",
931 (long) l.sl_sd, (long) dtblsize, 0 );
932 tcp_close( l.sl_sd );
938 if ( (*sal)->sa_family == AF_LOCAL ) {
939 unlink ( ((struct sockaddr_un *)*sal)->sun_path );
944 /* enable address reuse */
946 rc = setsockopt( l.sl_sd, SOL_SOCKET, SO_REUSEADDR,
947 (char *) &tmp, sizeof(tmp) );
948 if ( rc == AC_SOCKET_ERROR ) {
949 int err = sock_errno();
950 Debug( LDAP_DEBUG_ANY,
951 "slapd(%ld): setsockopt(SO_REUSEADDR) failed errno=%d (%s)\n",
952 (long) l.sl_sd, err, sock_errstr(err) );
957 switch( (*sal)->sa_family ) {
959 addrlen = sizeof(struct sockaddr_in);
964 /* Try to use IPv6 sockets for IPv6 only */
966 rc = setsockopt( l.sl_sd, IPPROTO_IPV6, IPV6_V6ONLY,
967 (char *) &tmp, sizeof(tmp) );
968 if ( rc == AC_SOCKET_ERROR ) {
969 int err = sock_errno();
970 Debug( LDAP_DEBUG_ANY,
971 "slapd(%ld): setsockopt(IPV6_V6ONLY) failed errno=%d (%s)\n",
972 (long) l.sl_sd, err, sock_errstr(err) );
975 addrlen = sizeof(struct sockaddr_in6);
980 addrlen = sizeof(struct sockaddr_un);
985 if (bind(l.sl_sd, *sal, addrlen)) {
987 Debug( LDAP_DEBUG_ANY, "daemon: bind(%ld) failed errno=%d (%s)\n",
988 (long) l.sl_sd, err, sock_errstr(err) );
989 tcp_close( l.sl_sd );
994 switch ( (*sal)->sa_family ) {
997 char *addr = ((struct sockaddr_un *)*sal)->sun_path;
998 #if 0 /* don't muck with socket perms */
999 if ( chmod( addr, l.sl_perms ) < 0 && crit ) {
1000 int err = sock_errno();
1001 Debug( LDAP_DEBUG_ANY, "daemon: fchmod(%ld) failed errno=%d (%s)",
1002 (long) l.sl_sd, err, sock_errstr(err) );
1003 tcp_close( l.sl_sd );
1004 slap_free_listener_addresses(psal);
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 sizeof("uidnumber=4294967295+gidnumber=4294967295,"
1366 "cn=peercred,cn=external,cn=auth"));
1367 authid.bv_len = sprintf( authid.bv_val,
1368 "uidnumber=%d+gidnumber=%d,"
1369 "cn=peercred,cn=external,cn=auth",
1370 (int) uid, (int) gid);
1375 #endif /* LDAP_PF_LOCAL */
1377 # ifdef LDAP_PF_INET6
1379 if ( IN6_IS_ADDR_V4MAPPED(&from.sa_in6_addr.sin6_addr) ) {
1380 peeraddr = inet_ntoa( *((struct in_addr *)
1381 &from.sa_in6_addr.sin6_addr.s6_addr[12]) );
1382 sprintf( peername, "IP=%s:%d",
1383 peeraddr != NULL ? peeraddr : SLAP_STRING_UNKNOWN,
1384 (unsigned) ntohs( from.sa_in6_addr.sin6_port ) );
1386 char addr[INET6_ADDRSTRLEN];
1388 peeraddr = (char *) inet_ntop( AF_INET6,
1389 &from.sa_in6_addr.sin6_addr,
1390 addr, sizeof addr );
1391 sprintf( peername, "IP=%s %d",
1392 peeraddr != NULL ? peeraddr : SLAP_STRING_UNKNOWN,
1393 (unsigned) ntohs( from.sa_in6_addr.sin6_port ) );
1396 # endif /* LDAP_PF_INET6 */
1399 peeraddr = inet_ntoa( from.sa_in_addr.sin_addr );
1400 sprintf( peername, "IP=%s:%d",
1401 peeraddr != NULL ? peeraddr : SLAP_STRING_UNKNOWN,
1402 (unsigned) ntohs( from.sa_in_addr.sin_port ) );
1410 if ( ( from.sa_addr.sa_family == AF_INET )
1411 #ifdef LDAP_PF_INET6
1412 || ( from.sa_addr.sa_family == AF_INET6 )
1415 #ifdef SLAPD_RLOOKUPS
1416 if ( use_reverse_lookup ) {
1418 if (ldap_pvt_get_hname( (const struct sockaddr *)&from, len, hbuf,
1419 sizeof(hbuf), &herr ) == 0) {
1420 ldap_pvt_str2lower( hbuf );
1426 #endif /* SLAPD_RLOOKUPS */
1429 if ( !hosts_ctl("slapd",
1430 dnsname != NULL ? dnsname : SLAP_STRING_UNKNOWN,
1431 peeraddr != NULL ? peeraddr : SLAP_STRING_UNKNOWN,
1432 SLAP_STRING_UNKNOWN ))
1435 Statslog( LDAP_DEBUG_STATS,
1436 "fd=%ld DENIED from %s (%s)\n",
1438 dnsname != NULL ? dnsname : SLAP_STRING_UNKNOWN,
1439 peeraddr != NULL ? peeraddr : SLAP_STRING_UNKNOWN,
1444 #endif /* HAVE_TCPD */
1447 id = connection_init(s, sl,
1448 dnsname != NULL ? dnsname : SLAP_STRING_UNKNOWN,
1451 sl->sl_is_tls ? CONN_IS_TLS : 0,
1456 authid.bv_val ? &authid : NULL );
1458 if( authid.bv_val ) ch_free(authid.bv_val);
1461 Debug( LDAP_DEBUG_ANY,
1462 "daemon: connection_init(%ld, %s, %s) failed.\n",
1463 (long) s, peername, sl->sl_name.bv_val );
1468 Statslog( LDAP_DEBUG_STATS,
1469 "conn=%ld fd=%ld ACCEPT from %s (%s)\n",
1470 id, (long) s, peername, sl->sl_name.bv_val,
1473 slapd_add( s, 1, NULL );
1483 time_t last_idle_check = 0;
1484 struct timeval idle;
1487 #define SLAPD_IDLE_CHECK_LIMIT 4
1489 if ( global_idletimeout > 0 ) {
1490 last_idle_check = slap_get_time();
1491 /* Set the select timeout.
1492 * Don't just truncate, preserve the fractions of
1493 * seconds to prevent sleeping for zero time.
1495 idle.tv_sec = global_idletimeout/SLAPD_IDLE_CHECK_LIMIT;
1496 idle.tv_usec = global_idletimeout - idle.tv_sec * SLAPD_IDLE_CHECK_LIMIT;
1497 idle.tv_usec *= 1000000 / SLAPD_IDLE_CHECK_LIMIT;
1503 slapd_add( wake_sds[0], 0, NULL );
1505 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1506 if ( slap_listeners[l]->sl_sd == AC_SOCKET_INVALID )
1508 #ifdef LDAP_CONNECTIONLESS
1509 /* Since this is connectionless, the data port is the
1510 * listening port. The listen() and accept() calls
1513 if ( slap_listeners[l]->sl_is_udp ) {
1514 slapd_add( slap_listeners[l]->sl_sd, 1, slap_listeners[l] );
1519 if ( listen( slap_listeners[l]->sl_sd, SLAPD_LISTEN ) == -1 ) {
1520 int err = sock_errno();
1522 #ifdef LDAP_PF_INET6
1523 /* If error is EADDRINUSE, we are trying to listen to INADDR_ANY and
1524 * we are already listening to in6addr_any, then we want to ignore
1525 * this and continue.
1527 if ( err == EADDRINUSE ) {
1529 struct sockaddr_in sa = slap_listeners[l]->sl_sa.sa_in_addr;
1530 struct sockaddr_in6 sa6;
1532 if ( sa.sin_family == AF_INET &&
1533 sa.sin_addr.s_addr == htonl(INADDR_ANY) ) {
1534 for ( i = 0 ; i < l; i++ ) {
1535 sa6 = slap_listeners[i]->sl_sa.sa_in6_addr;
1536 if ( sa6.sin6_family == AF_INET6 &&
1537 !memcmp( &sa6.sin6_addr, &in6addr_any, sizeof(struct in6_addr) ) )
1542 /* We are already listening to in6addr_any */
1543 Debug( LDAP_DEBUG_CONNS,
1544 "daemon: Attempt to listen to 0.0.0.0 failed, already listening on ::, assuming IPv4 included\n",
1546 slapd_close( slap_listeners[l]->sl_sd );
1547 slap_listeners[l]->sl_sd = AC_SOCKET_INVALID;
1553 Debug( LDAP_DEBUG_ANY,
1554 "daemon: listen(%s, 5) failed errno=%d (%s)\n",
1555 slap_listeners[l]->sl_url.bv_val, err,
1557 return( (void*)-1 );
1560 slapd_add( slap_listeners[l]->sl_sd, 0, slap_listeners[l] );
1563 #ifdef HAVE_NT_SERVICE_MANAGER
1564 if ( started_event != NULL ) {
1565 ldap_pvt_thread_cond_signal( &started_event );
1568 /* initialization complete. Here comes the loop. */
1570 while ( !slapd_shutdown ) {
1574 ber_socket_t nfds, nrfds, nwfds;
1575 #define SLAPD_EBADF_LIMIT 16
1582 struct timeval *tvp;
1584 struct timeval *cat;
1587 now = slap_get_time();
1589 if( ( global_idletimeout > 0 ) &&
1590 difftime( last_idle_check +
1591 global_idletimeout/SLAPD_IDLE_CHECK_LIMIT, now ) < 0 ) {
1592 connections_timeout_idle( now );
1593 last_idle_check = now;
1598 if( slapd_gentle_shutdown ) {
1599 ber_socket_t active;
1601 if( slapd_gentle_shutdown == 1 ) {
1602 Debug( LDAP_DEBUG_ANY, "slapd gentle shutdown\n", 0, 0, 0 );
1603 close_listeners( 1 );
1604 frontendDB->be_restrictops |= SLAP_RESTRICT_OP_WRITES;
1605 slapd_gentle_shutdown = 2;
1608 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
1609 active = slap_daemon.sd_nactives;
1610 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
1620 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
1622 nwriters = slap_daemon.sd_nwriters;
1625 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1626 if ( slap_listeners[l]->sl_sd == AC_SOCKET_INVALID )
1628 if ( slap_listeners[l]->sl_is_mute )
1629 SLAP_SOCK_SET_MUTE( slap_listeners[l]->sl_sd );
1631 if ( SLAP_SOCK_IS_MUTE( slap_listeners[l]->sl_sd ))
1632 SLAP_SOCK_CLR_MUTE( slap_listeners[l]->sl_sd );
1635 nfds = SLAP_EVENT_MAX;
1637 if ( global_idletimeout && slap_daemon.sd_nactives )
1640 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
1643 #if defined(HAVE_YIELDING_SELECT) || defined(NO_THREADS)
1644 && ( tv.tv_sec || tv.tv_usec )
1651 ldap_pvt_thread_mutex_lock( &syncrepl_rq.rq_mutex );
1652 rtask = ldap_pvt_runqueue_next_sched( &syncrepl_rq, &cat );
1653 while ( cat && cat->tv_sec && cat->tv_sec <= now ) {
1654 if ( ldap_pvt_runqueue_isrunning( &syncrepl_rq, rtask )) {
1655 ldap_pvt_runqueue_resched( &syncrepl_rq, rtask, 0 );
1657 ldap_pvt_runqueue_runtask( &syncrepl_rq, rtask );
1658 ldap_pvt_runqueue_resched( &syncrepl_rq, rtask, 0 );
1659 ldap_pvt_thread_mutex_unlock( &syncrepl_rq.rq_mutex );
1660 ldap_pvt_thread_pool_submit( &connection_pool,
1661 rtask->routine, (void *) rtask );
1662 ldap_pvt_thread_mutex_lock( &syncrepl_rq.rq_mutex );
1664 rtask = ldap_pvt_runqueue_next_sched( &syncrepl_rq, &cat );
1666 ldap_pvt_thread_mutex_unlock( &syncrepl_rq.rq_mutex );
1668 if ( cat != NULL ) {
1669 time_t diff = difftime( cat->tv_sec, now );
1672 if ( tvp == NULL || diff < tv.tv_sec ) {
1679 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1680 if ( slap_listeners[l]->sl_sd == AC_SOCKET_INVALID ||
1681 slap_listeners[l]->sl_is_mute )
1684 Debug( LDAP_DEBUG_CONNS,
1685 "daemon: select: listen=%d active_threads=%d tvp=%s\n",
1686 slap_listeners[l]->sl_sd, at,
1687 tvp == NULL ? "NULL" : "zero" );
1690 switch(ns = SLAP_EVENT_WAIT(tvp))
1692 case -1: { /* failure - try again */
1693 int err = sock_errno();
1697 /* you'd think this would be EBADF */
1698 || err == WSAENOTSOCK
1701 if (++ebadf < SLAPD_EBADF_LIMIT)
1705 if( err != EINTR ) {
1706 Debug( LDAP_DEBUG_CONNS,
1707 "daemon: select failed (%d): %s\n",
1708 err, sock_errstr(err), 0 );
1714 case 0: /* timeout - let threads run */
1716 Debug( LDAP_DEBUG_CONNS, "daemon: select timeout - yielding\n",
1719 ldap_pvt_thread_yield();
1722 default: /* something happened - deal with it */
1723 if( slapd_shutdown ) continue;
1726 Debug( LDAP_DEBUG_CONNS, "daemon: activity on %d descriptors\n",
1731 /* We don't need to examine the event status for wake_sds;
1732 * if waking is set and we woke up, we'll read whatever
1737 tcp_read( wake_sds[0], c, sizeof(c) );
1743 #if SLAP_EVENTS_ARE_INDEXED
1744 /* The event slot equals the descriptor number - this is
1745 * true for Unix select and poll. We treat Windows select
1746 * like this too, even though it's a kludge.
1748 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1751 if ( ns <= 0 ) break;
1753 if ( slap_listeners[l]->sl_sd == AC_SOCKET_INVALID )
1756 if ( !SLAP_EVENT_IS_READ( slap_listeners[l]->sl_sd ))
1761 rc = slapd_handle_listener(slap_listeners[l]);
1763 #ifdef LDAP_CONNECTIONLESS
1764 /* This is a UDP session, let the data loop process it */
1768 /* Don't need to look at this in the data loops */
1769 SLAP_EVENT_CLR_READ( slap_listeners[l]->sl_sd );
1770 SLAP_EVENT_CLR_WRITE( slap_listeners[l]->sl_sd );
1773 /* bypass the following tests if no descriptors left */
1775 ldap_pvt_thread_yield();
1779 Debug( LDAP_DEBUG_CONNS, "daemon: activity on:", 0, 0, 0 );
1781 nrfds = readfds.fd_count;
1782 nwfds = writefds.fd_count;
1783 for ( i = 0; i < readfds.fd_count; i++ ) {
1784 Debug( LDAP_DEBUG_CONNS, " %d%s",
1785 readfds.fd_array[i], "r", 0 );
1787 for ( i = 0; i < writefds.fd_count; i++ ) {
1788 Debug( LDAP_DEBUG_CONNS, " %d%s",
1789 writefds.fd_array[i], "w", 0 );
1795 for ( i = 0; i < nfds; i++ ) {
1798 r = SLAP_EVENT_IS_READ( i );
1799 w = SLAP_EVENT_IS_WRITE( i );
1801 Debug( LDAP_DEBUG_CONNS, " %d%s%s", i,
1802 r ? "r" : "", w ? "w" : "" );
1812 if ( ns <= 0 ) break;
1815 Debug( LDAP_DEBUG_CONNS, "\n", 0, 0, 0 );
1818 /* loop through the writers */
1819 for ( i = 0; nwfds > 0; i++ )
1823 wd = writefds.fd_array[i];
1825 if( ! SLAP_EVENT_IS_WRITE( i ) ) {
1832 Debug( LDAP_DEBUG_CONNS,
1833 "daemon: write active on %d\n",
1836 * NOTE: it is possible that the connection was closed
1837 * and that the stream is now inactive.
1838 * connection_write() must valid the stream is still
1842 if ( connection_write( wd ) < 0 ) {
1843 if ( SLAP_EVENT_IS_READ( wd )) {
1844 SLAP_EVENT_CLR_READ( (unsigned) wd );
1851 for ( i = 0; nrfds > 0; i++ )
1855 rd = readfds.fd_array[i];
1857 if( ! SLAP_EVENT_IS_READ( i ) ) {
1864 Debug ( LDAP_DEBUG_CONNS,
1865 "daemon: read activity on %d\n", rd, 0, 0 );
1867 * NOTE: it is possible that the connection was closed
1868 * and that the stream is now inactive.
1869 * connection_read() must valid the stream is still
1873 if ( connection_read( rd ) < 0 ) {
1877 #else /* !SLAP_EVENTS_ARE_INDEXED */
1879 /* The events are returned in an arbitrary list. This is true
1880 * for /dev/poll, epoll and kqueue. In order to prioritize things
1881 * so that we can handle wake_sds first, listeners second, and then
1882 * all other connections last (as we do for select), we would need
1883 * to use multiple event handles and cascade them.
1885 * That seems like a bit of hassle. So the wake_sds check has moved
1886 * above. For epoll and kqueue we can associate arbitrary data with
1887 * an event, so we could use pointers to the listener structure
1888 * instead of just the file descriptor. For /dev/poll we have to
1889 * search the listeners array for a matching descriptor.
1892 Debug( LDAP_DEBUG_CONNS, "daemon: activity on:", 0, 0, 0 );
1894 for (i=0; i<ns; i++) {
1897 if ( SLAP_EVENT_IS_LISTENER(i)
1898 #ifdef LDAP_CONNECTIONLESS
1899 && !((SLAP_EVENT_LISTENER(i))->sl_is_udp)
1903 r = SLAP_EVENT_IS_READ( i );
1904 w = SLAP_EVENT_IS_WRITE( i );
1906 Debug( LDAP_DEBUG_CONNS, " %d%s%s", SLAP_EVENT_FD(i),
1907 r ? "r" : "", w ? "w" : "" );
1911 for (i=0; i<ns; i++) {
1914 if ( SLAP_EVENT_IS_LISTENER(i) ) {
1915 rc = slapd_handle_listener( SLAP_EVENT_LISTENER( i ));
1917 /* If we found a regular listener, rc is now zero, and we
1918 * can skip the data portion. But if it was a UDP listener
1919 * then rc is still 1, and we want to handle the data.
1922 fd = SLAP_EVENT_FD( i );
1924 if( SLAP_EVENT_IS_WRITE( i ) ) {
1925 Debug( LDAP_DEBUG_CONNS,
1926 "daemon: write active on %d\n",
1929 * NOTE: it is possible that the connection was closed
1930 * and that the stream is now inactive.
1931 * connection_write() must valid the stream is still
1935 if ( connection_write( fd ) < 0 ) {
1940 if( SLAP_EVENT_IS_READ( i ) ) {
1941 Debug( LDAP_DEBUG_CONNS,
1942 "daemon: read active on %d\n",
1945 * NOTE: it is possible that the connection was closed
1946 * and that the stream is now inactive.
1947 * connection_read() must valid the stream is still
1951 if ( connection_read( fd ) < 0 ) {
1957 #endif /* SLAP_EVENTS_ARE_INDEXED */
1959 ldap_pvt_thread_yield();
1962 if( slapd_shutdown == 1 ) {
1963 Debug( LDAP_DEBUG_TRACE,
1964 "daemon: shutdown requested and initiated.\n",
1967 } else if ( slapd_shutdown == 2 ) {
1968 #ifdef HAVE_NT_SERVICE_MANAGER
1969 Debug( LDAP_DEBUG_TRACE,
1970 "daemon: shutdown initiated by Service Manager.\n",
1972 #else /* !HAVE_NT_SERVICE_MANAGER */
1973 Debug( LDAP_DEBUG_TRACE,
1974 "daemon: abnormal condition, shutdown initiated.\n",
1976 #endif /* !HAVE_NT_SERVICE_MANAGER */
1978 Debug( LDAP_DEBUG_TRACE,
1979 "daemon: no active streams, shutdown initiated.\n",
1983 if( slapd_gentle_shutdown != 2 ) {
1984 close_listeners ( 0 );
1987 free ( slap_listeners );
1988 slap_listeners = NULL;
1990 if( !slapd_gentle_shutdown ) {
1991 slapd_abrupt_shutdown = 1;
1992 connections_shutdown();
1995 Debug( LDAP_DEBUG_ANY,
1996 "slapd shutdown: waiting for %d threads to terminate\n",
1997 ldap_pvt_thread_pool_backload(&connection_pool), 0, 0 );
1998 ldap_pvt_thread_pool_destroy(&connection_pool, 1);
2004 int slapd_daemon( void )
2010 #define SLAPD_LISTENER_THREAD 1
2011 #if defined( SLAPD_LISTENER_THREAD )
2013 ldap_pvt_thread_t listener_tid;
2015 /* listener as a separate THREAD */
2016 rc = ldap_pvt_thread_create( &listener_tid,
2017 0, slapd_daemon_task, NULL );
2020 Debug( LDAP_DEBUG_ANY,
2021 "listener ldap_pvt_thread_create failed (%d)\n", rc, 0, 0 );
2025 /* wait for the listener thread to complete */
2026 ldap_pvt_thread_join( listener_tid, (void *) NULL );
2029 /* experimental code */
2030 slapd_daemon_task( NULL );
2039 #if defined( HAVE_WINSOCK2 )
2040 WORD wVersionRequested;
2044 wVersionRequested = MAKEWORD( 2, 0 );
2046 err = WSAStartup( wVersionRequested, &wsaData );
2048 /* Tell the user that we couldn't find a usable */
2053 /* Confirm that the WinSock DLL supports 2.0.*/
2054 /* Note that if the DLL supports versions greater */
2055 /* than 2.0 in addition to 2.0, it will still return */
2056 /* 2.0 in wVersion since that is the version we */
2059 if ( LOBYTE( wsaData.wVersion ) != 2 ||
2060 HIBYTE( wsaData.wVersion ) != 0 )
2062 /* Tell the user that we couldn't find a usable */
2068 /* The WinSock DLL is acceptable. Proceed. */
2069 #elif defined( HAVE_WINSOCK )
2071 if ( WSAStartup( 0x0101, &wsaData ) != 0 ) {
2078 int sockdestroy(void)
2080 #if defined( HAVE_WINSOCK2 ) || defined( HAVE_WINSOCK )
2087 slap_sig_shutdown( int sig )
2090 Debug(LDAP_DEBUG_TRACE, "slap_sig_shutdown: signal %d\n", sig, 0, 0);
2094 * If the NT Service Manager is controlling the server, we don't
2095 * want SIGBREAK to kill the server. For some strange reason,
2096 * SIGBREAK is generated when a user logs out.
2099 #if HAVE_NT_SERVICE_MANAGER && SIGBREAK
2100 if (is_NT_Service && sig == SIGBREAK)
2105 if (sig == SIGHUP && global_gentlehup && slapd_gentle_shutdown == 0)
2106 slapd_gentle_shutdown = 1;
2112 /* reinstall self */
2113 (void) SIGNAL_REINSTALL( sig, slap_sig_shutdown );
2117 slap_sig_wake( int sig )
2121 /* reinstall self */
2122 (void) SIGNAL_REINSTALL( sig, slap_sig_wake );
2126 void slapd_add_internal(ber_socket_t s, int isactive) {
2127 slapd_add(s, isactive, NULL);
2130 Listener ** slapd_get_listeners(void) {
2131 return slap_listeners;
2134 void slap_wake_listener()