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"
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
157 #define SLAP_ADD_SOCK(s, l) do { \
159 SLAP_SOCK_IX(s) = slap_daemon.sd_nfds; \
160 SLAP_SOCK_EP(s).data.ptr = (l) ? (l) : (void *)(&SLAP_SOCK_IX(s)); \
161 SLAP_SOCK_EV(s) = EPOLLIN; \
162 rc = epoll_ctl(slap_daemon.sd_epfd, EPOLL_CTL_ADD, s, \
164 if ( rc == 0 ) slap_daemon.sd_nfds++; \
167 #define SLAP_EV_LISTENER(ptr) (((int *)(ptr) >= slap_daemon.sd_index && \
168 (int *)(ptr) <= (slap_daemon.sd_index+dtblsize)) ? 0 : 1)
170 #define SLAP_EV_PTRFD(ptr) (SLAP_EV_LISTENER(ptr) ? \
171 ((Listener *)ptr)->sl_sd : (int *)(ptr) - slap_daemon.sd_index)
173 #define SLAP_DEL_SOCK(s) do { \
174 int fd, rc, index = SLAP_SOCK_IX(s); \
175 rc = epoll_ctl(slap_daemon.sd_epfd, EPOLL_CTL_DEL, s, \
177 slap_daemon.sd_epolls[index] = slap_daemon.sd_epolls[slap_daemon.sd_nfds-1]; \
178 fd = SLAP_EV_PTRFD(slap_daemon.sd_epolls[index].data.ptr); \
179 slap_daemon.sd_index[fd] = index; \
180 slap_daemon.sd_index[s] = -1; \
181 slap_daemon.sd_nfds--; \
184 #define SLAP_EVENT_CLR_READ(i) SLAP_CLR_EVENT(i, EPOLLIN)
185 #define SLAP_EVENT_CLR_WRITE(i) SLAP_CLR_EVENT(i, EPOLLOUT)
187 #define SLAP_CHK_EVENT(i, mode) (revents[i].events & mode)
189 #define SLAP_EVENT_IS_READ(i) SLAP_CHK_EVENT(i, EPOLLIN)
190 #define SLAP_EVENT_IS_WRITE(i) SLAP_CHK_EVENT(i, EPOLLOUT)
191 #define SLAP_EVENT_IS_LISTENER(i) SLAP_EV_LISTENER(revents[i].data.ptr)
192 #define SLAP_EVENT_LISTENER(i) (revents[i].data.ptr)
194 #define SLAP_EVENT_FD(i) SLAP_EV_PTRFD(revents[i].data.ptr)
195 #define SLAP_SOCK_SET_MUTE(s) SLAP_SOCK_CLR_READ(s)
196 #define SLAP_SOCK_CLR_MUTE(s) SLAP_SOCK_SET_READ(s)
197 #define SLAP_SOCK_IS_MUTE(s) !SLAP_SOCK_IS_READ(s)
199 #define SLAP_SOCK_SET_INIT \
200 slap_daemon.sd_epolls = ch_malloc(sizeof(struct epoll_event) * dtblsize * 2); \
201 slap_daemon.sd_index = ch_malloc(sizeof(int) * dtblsize); \
202 slap_daemon.sd_epfd = epoll_create( dtblsize ); \
203 for (i=0; i<dtblsize; i++) slap_daemon.sd_index[i] = -1
206 #define SLAP_EVENT_DECL \
207 struct epoll_event *revents
209 #define SLAP_EVENT_INIT \
210 revents = slap_daemon.sd_epolls + dtblsize; \
212 #define SLAP_EVENT_WAIT(tvp) \
213 epoll_wait( slap_daemon.sd_epfd, revents, dtblsize, tvp ? tvp->tv_sec * 1000 : -1 )
218 #define SLAP_EVENTS_ARE_INDEXED 1
219 #define SLAP_EVENT_DECL \
220 fd_set readfds, writefds
222 #define SLAP_EVENT_INIT \
223 AC_MEMCPY( &readfds, &slap_daemon.sd_readers, sizeof(fd_set) ); \
225 AC_MEMCPY( &writefds, &slap_daemon.sd_writers, sizeof(fd_set) );
228 #define CHK_SETSIZE \
229 if (dtblsize > FD_SETSIZE) dtblsize = FD_SETSIZE
234 #define SLAP_SOCK_SET_INIT \
236 FD_ZERO(&slap_daemon.sd_readers); \
237 FD_ZERO(&slap_daemon.sd_writers)
239 #define SLAP_SOCK_IS_ACTIVE(fd) FD_ISSET(fd, &slap_daemon.sd_actives)
241 #define SLAP_SOCK_IS_READ(fd) FD_ISSET(fd, &slap_daemon.sd_readers)
242 #define SLAP_SOCK_IS_WRITE(fd) FD_ISSET(fd, &slap_daemon.sd_writers)
244 #define SLAP_SOCK_NOT_ACTIVE(fd) (!SLAP_SOCK_IS_ACTIVE(fd) && \
245 !SLAP_SOCK_IS_READ(fd) && !SLAP_SOCK_IS_WRITE(fd))
248 #define SLAP_SOCK_SET_READ(fd) do { \
249 if (!SLAP_SOCK_IS_READ(fd)) {FD_SET(fd, &slap_daemon.sd_readers);} \
251 #define SLAP_SOCK_SET_WRITE(fd) do { \
252 if (!SLAP_SOCK_IS_WRITE(fd)) {FD_SET(fd, &slap_daemon.sd_writers);} \
255 #define SLAP_ADDTEST(s)
256 #define SLAP_EVENT_MAX dtblsize
258 #define SLAP_SOCK_SET_READ(fd) FD_SET(fd, &slap_daemon.sd_readers)
259 #define SLAP_SOCK_SET_WRITE(fd) FD_SET(fd, &slap_daemon.sd_writers)
261 #define SLAP_EVENT_MAX slap_daemon.sd_nfds
262 #define SLAP_ADDTEST(s) if (s >= slap_daemon.sd_nfds) slap_daemon.sd_nfds = s+1
265 #define SLAP_SOCK_CLR_READ(fd) FD_CLR(fd, &slap_daemon.sd_readers)
266 #define SLAP_SOCK_CLR_WRITE(fd) FD_CLR(fd, &slap_daemon.sd_writers)
268 #define SLAP_ADD_SOCK(s, l) do { \
270 FD_SET(s, &slap_daemon.sd_actives); \
271 FD_SET(s, &slap_daemon.sd_readers); \
274 #define SLAP_DEL_SOCK(s) do { \
275 FD_CLR(s, &slap_daemon.sd_actives); \
276 FD_CLR(s, &slap_daemon.sd_readers); \
277 FD_CLR(s, &slap_daemon.sd_writers); \
280 #define SLAP_EVENT_IS_READ(fd) FD_ISSET(fd, &readfds)
281 #define SLAP_EVENT_IS_WRITE(fd) FD_ISSET(fd, &writefds)
283 #define SLAP_EVENT_CLR_READ(fd) FD_CLR(fd, &readfds)
284 #define SLAP_EVENT_CLR_WRITE(fd) FD_CLR(fd, &writefds)
286 #define SLAP_EVENT_WAIT(tvp) \
287 select( SLAP_EVENT_MAX, &readfds, \
288 nwriters > 0 ? &writefds : NULL, NULL, tvp )
290 #define SLAP_SOCK_SET_MUTE(s) FD_CLR(s, &readfds)
291 #define SLAP_SOCK_CLR_MUTE(s) FD_SET(s, &readfds)
292 #define SLAP_SOCK_IS_MUTE(s) FD_ISSET(s, &readfds)
299 * SLP related functions
303 #define LDAP_SRVTYPE_PREFIX "service:ldap://"
304 #define LDAPS_SRVTYPE_PREFIX "service:ldaps://"
305 static char** slapd_srvurls = NULL;
306 static SLPHandle slapd_hslp = 0;
307 int slapd_register_slp = 0;
309 void slapd_slp_init( const char* urls ) {
312 slapd_srvurls = ldap_str2charray( urls, " " );
314 if( slapd_srvurls == NULL ) return;
316 /* find and expand INADDR_ANY URLs */
317 for( i=0; slapd_srvurls[i] != NULL; i++ ) {
318 if( strcmp( slapd_srvurls[i], "ldap:///" ) == 0) {
319 char *host = ldap_pvt_get_fqdn( NULL );
320 if ( host != NULL ) {
321 slapd_srvurls[i] = (char *) ch_realloc( slapd_srvurls[i],
323 sizeof( LDAP_SRVTYPE_PREFIX ) );
324 strcpy( lutil_strcopy(slapd_srvurls[i],
325 LDAP_SRVTYPE_PREFIX ), host );
330 } else if ( strcmp( slapd_srvurls[i], "ldaps:///" ) == 0) {
331 char *host = ldap_pvt_get_fqdn( NULL );
332 if ( host != NULL ) {
333 slapd_srvurls[i] = (char *) ch_realloc( slapd_srvurls[i],
335 sizeof( LDAPS_SRVTYPE_PREFIX ) );
336 strcpy( lutil_strcopy(slapd_srvurls[i],
337 LDAPS_SRVTYPE_PREFIX ), host );
344 /* open the SLP handle */
345 SLPOpen( "en", 0, &slapd_hslp );
348 void slapd_slp_deinit() {
349 if( slapd_srvurls == NULL ) return;
351 ldap_charray_free( slapd_srvurls );
352 slapd_srvurls = NULL;
354 /* close the SLP handle */
355 SLPClose( slapd_hslp );
358 void slapd_slp_regreport(
366 void slapd_slp_reg() {
369 if( slapd_srvurls == NULL ) return;
371 for( i=0; slapd_srvurls[i] != NULL; i++ ) {
372 if( strncmp( slapd_srvurls[i], LDAP_SRVTYPE_PREFIX,
373 sizeof( LDAP_SRVTYPE_PREFIX ) - 1 ) == 0 ||
374 strncmp( slapd_srvurls[i], LDAPS_SRVTYPE_PREFIX,
375 sizeof( LDAPS_SRVTYPE_PREFIX ) - 1 ) == 0 )
379 SLP_LIFETIME_MAXIMUM,
389 void slapd_slp_dereg() {
392 if( slapd_srvurls == NULL ) return;
394 for( i=0; slapd_srvurls[i] != NULL; i++ ) {
395 SLPDereg( slapd_hslp,
401 #endif /* HAVE_SLP */
404 * Add a descriptor to daemon control
406 * If isactive, the descriptor is a live server session and is subject
407 * to idletimeout control. Otherwise, the descriptor is a passive
408 * listener or an outbound client session, and not subject to
409 * idletimeout. The underlying event handler may record the Listener
410 * argument to differentiate Listener's from real sessions.
412 static void slapd_add(ber_socket_t s, int isactive, Listener *sl) {
413 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
415 assert( SLAP_SOCK_NOT_ACTIVE(s) );
418 slap_daemon.sd_nactives++;
421 SLAP_ADD_SOCK(s, sl);
423 Debug( LDAP_DEBUG_CONNS, "daemon: added %ldr\n",
425 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
429 * Remove the descriptor from daemon control
431 void slapd_remove(ber_socket_t s, int wasactive, int wake) {
433 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
436 slap_daemon.sd_nactives--;
438 waswriter = SLAP_SOCK_IS_WRITE(s);
440 Debug( LDAP_DEBUG_CONNS, "daemon: removing %ld%s%s\n",
441 (long) s, SLAP_SOCK_IS_READ(s) ? "r" : "",
442 waswriter ? "w" : "" );
443 if ( waswriter ) slap_daemon.sd_nwriters--;
447 /* If we ran out of file descriptors, we dropped a listener from
448 * the select() loop. Now that we're removing a session from our
449 * control, we can try to resume a dropped listener to use.
453 for ( i = 0; slap_listeners[i] != NULL; i++ ) {
454 if ( slap_listeners[i]->sl_sd != AC_SOCKET_INVALID ) {
455 if ( slap_listeners[i]->sl_sd == s ) continue;
456 if ( slap_listeners[i]->sl_is_mute ) {
457 slap_listeners[i]->sl_is_mute = 0;
463 /* Walked the entire list without enabling anything; emfile
464 * counter is stale. Reset it.
466 if ( slap_listeners[i] == NULL )
469 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
470 WAKE_LISTENER(wake || slapd_gentle_shutdown == 2);
473 void slapd_clr_write(ber_socket_t s, int wake) {
474 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
476 assert( SLAP_SOCK_IS_ACTIVE( s ));
477 if ( SLAP_SOCK_IS_WRITE( s )) {
478 SLAP_SOCK_CLR_WRITE( s );
479 slap_daemon.sd_nwriters--;
482 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
486 void slapd_set_write(ber_socket_t s, int wake) {
487 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
489 assert( SLAP_SOCK_IS_ACTIVE( s ));
490 if ( !SLAP_SOCK_IS_WRITE( s )) {
491 SLAP_SOCK_SET_WRITE( s );
492 slap_daemon.sd_nwriters++;
495 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
499 void slapd_clr_read(ber_socket_t s, int wake) {
500 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
502 assert( SLAP_SOCK_IS_ACTIVE( s ));
503 SLAP_SOCK_CLR_READ( s );
505 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
509 void slapd_set_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 if (!SLAP_SOCK_IS_READ( s ))
514 SLAP_SOCK_SET_READ( s );
516 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
520 static void slapd_close(ber_socket_t s) {
521 Debug( LDAP_DEBUG_CONNS, "daemon: closing %ld\n",
526 static void slap_free_listener_addresses(struct sockaddr **sal)
528 struct sockaddr **sap;
534 for (sap = sal; *sap != NULL; sap++) {
541 #if defined(LDAP_PF_LOCAL) || defined(SLAP_X_LISTENER_MOD)
542 static int get_url_perms(
554 for ( i = 0; exts[ i ]; i++ ) {
555 char *type = exts[ i ];
558 if ( type[ 0 ] == '!' ) {
563 if ( strncasecmp( type, LDAPI_MOD_URLEXT "=", sizeof(LDAPI_MOD_URLEXT "=") - 1 ) == 0 ) {
565 + ( sizeof(LDAPI_MOD_URLEXT "=") - 1 );
569 switch (strlen(value)) {
571 /* skip leading '0' */
572 if ( value[ 0 ] != '0' ) {
578 for ( j = 0; j < 3; j++) {
581 v = value[ j ] - '0';
583 if ( v < 0 || v > 7 ) {
592 for ( j = 1; j < 10; j++ ) {
593 static mode_t m[] = { 0,
594 S_IRUSR, S_IWUSR, S_IXUSR,
595 S_IRGRP, S_IWGRP, S_IXGRP,
596 S_IROTH, S_IWOTH, S_IXOTH
598 static char c[] = "-rwxrwxrwx";
600 if ( value[ j ] == c[ j ] ) {
603 } else if ( value[ j ] != '-' ) {
622 #endif /* LDAP_PF_LOCAL || SLAP_X_LISTENER_MOD */
624 /* port = 0 indicates AF_LOCAL */
625 static int slap_get_listener_addresses(
628 struct sockaddr ***sal)
630 struct sockaddr **sap;
634 *sal = ch_malloc(2 * sizeof(void *));
640 *sap = ch_malloc(sizeof(struct sockaddr_un));
646 (sizeof(((struct sockaddr_un *)*sap)->sun_path) - 1) ) {
647 Debug( LDAP_DEBUG_ANY,
648 "daemon: domain socket path (%s) too long in URL",
653 (void)memset( (void *)*sap, '\0', sizeof(struct sockaddr_un) );
654 (*sap)->sa_family = AF_LOCAL;
655 strcpy( ((struct sockaddr_un *)*sap)->sun_path, host );
659 #ifdef HAVE_GETADDRINFO
660 struct addrinfo hints, *res, *sai;
664 memset( &hints, '\0', sizeof(hints) );
665 hints.ai_flags = AI_PASSIVE;
666 hints.ai_socktype = SOCK_STREAM;
667 hints.ai_family = slap_inet4or6;
668 snprintf(serv, sizeof serv, "%d", port);
670 if ( (err = getaddrinfo(host, serv, &hints, &res)) ) {
671 Debug( LDAP_DEBUG_ANY, "daemon: getaddrinfo failed: %s\n",
672 AC_GAI_STRERROR(err), 0, 0);
677 for (n=2; (sai = sai->ai_next) != NULL; n++) {
680 *sal = ch_calloc(n, sizeof(void *));
688 for ( sai=res; sai; sai=sai->ai_next ) {
689 if( sai->ai_addr == NULL ) {
690 Debug( LDAP_DEBUG_ANY, "slap_get_listener_addresses: "
691 "getaddrinfo ai_addr is NULL?\n", 0, 0, 0 );
696 switch (sai->ai_family) {
697 # ifdef LDAP_PF_INET6
699 *sap = ch_malloc(sizeof(struct sockaddr_in6));
704 *(struct sockaddr_in6 *)*sap =
705 *((struct sockaddr_in6 *)sai->ai_addr);
709 *sap = ch_malloc(sizeof(struct sockaddr_in));
714 *(struct sockaddr_in *)*sap =
715 *((struct sockaddr_in *)sai->ai_addr);
723 (*sap)->sa_family = sai->ai_family;
733 struct hostent *he = NULL;
735 if ( host == NULL ) {
736 in.s_addr = htonl(INADDR_ANY);
738 } else if ( !inet_aton( host, &in ) ) {
739 he = gethostbyname( host );
741 Debug( LDAP_DEBUG_ANY,
742 "daemon: invalid host %s", host, 0, 0);
745 for (n = 0; he->h_addr_list[n]; n++) ;
748 *sal = ch_malloc((n+1) * sizeof(void *));
754 for ( i = 0; i<n; i++ ) {
755 sap[i] = ch_malloc(sizeof(struct sockaddr_in));
759 (void)memset( (void *)sap[i], '\0', sizeof(struct sockaddr_in) );
760 sap[i]->sa_family = AF_INET;
761 ((struct sockaddr_in *)sap[i])->sin_port = htons(port);
763 AC_MEMCPY( &((struct sockaddr_in *)sap[i])->sin_addr, he->h_addr_list[i], sizeof(struct in_addr) );
765 AC_MEMCPY( &((struct sockaddr_in *)sap[i])->sin_addr, &in, sizeof(struct in_addr) );
775 slap_free_listener_addresses(*sal);
779 static int slap_open_listener(
790 int err, addrlen = 0;
791 struct sockaddr **sal, **psal;
792 int socktype = SOCK_STREAM; /* default to COTS */
794 #if defined(LDAP_PF_LOCAL) || defined(SLAP_X_LISTENER_MOD)
799 #endif /* LDAP_PF_LOCAL || SLAP_X_LISTENER_MOD */
801 rc = ldap_url_parse( url, &lud );
803 if( rc != LDAP_URL_SUCCESS ) {
804 Debug( LDAP_DEBUG_ANY,
805 "daemon: listen URL \"%s\" parse error=%d\n",
810 l.sl_url.bv_val = NULL;
814 if( ldap_pvt_url_scheme2tls( lud->lud_scheme ) ) {
815 Debug( LDAP_DEBUG_ANY,
816 "daemon: TLS not supported (%s)\n",
818 ldap_free_urldesc( lud );
822 if(! lud->lud_port ) {
823 lud->lud_port = LDAP_PORT;
827 l.sl_is_tls = ldap_pvt_url_scheme2tls( lud->lud_scheme );
829 if(! lud->lud_port ) {
830 lud->lud_port = l.sl_is_tls ? LDAPS_PORT : LDAP_PORT;
834 port = (unsigned short) lud->lud_port;
836 tmp = ldap_pvt_url_scheme2proto(lud->lud_scheme);
837 if ( tmp == LDAP_PROTO_IPC ) {
839 if ( lud->lud_host == NULL || lud->lud_host[0] == '\0' ) {
840 err = slap_get_listener_addresses(LDAPI_SOCK, 0, &sal);
842 err = slap_get_listener_addresses(lud->lud_host, 0, &sal);
846 Debug( LDAP_DEBUG_ANY, "daemon: URL scheme not supported: %s",
848 ldap_free_urldesc( lud );
852 if( lud->lud_host == NULL || lud->lud_host[0] == '\0'
853 || strcmp(lud->lud_host, "*") == 0 )
855 err = slap_get_listener_addresses(NULL, port, &sal);
857 err = slap_get_listener_addresses(lud->lud_host, port, &sal);
860 #ifdef LDAP_CONNECTIONLESS
861 l.sl_is_udp = ( tmp == LDAP_PROTO_UDP );
864 #if defined(LDAP_PF_LOCAL) || defined(SLAP_X_LISTENER_MOD)
865 if ( lud->lud_exts ) {
866 err = get_url_perms( lud->lud_exts, &l.sl_perms, &crit );
868 l.sl_perms = S_IRWXU | S_IRWXO;
870 #endif /* LDAP_PF_LOCAL || SLAP_X_LISTENER_MOD */
872 ldap_free_urldesc( lud );
877 /* If we got more than one address returned, we need to make space
878 * for it in the slap_listeners array.
880 for ( num=0; sal[num]; num++ );
883 slap_listeners = ch_realloc( slap_listeners, (*listeners + 1) * sizeof(Listener *) );
887 while ( *sal != NULL ) {
889 switch( (*sal)->sa_family ) {
907 #ifdef LDAP_CONNECTIONLESS
908 if( l.sl_is_udp ) socktype = SOCK_DGRAM;
910 l.sl_sd = socket( (*sal)->sa_family, socktype, 0);
911 if ( l.sl_sd == AC_SOCKET_INVALID ) {
912 int err = sock_errno();
913 Debug( LDAP_DEBUG_ANY,
914 "daemon: %s socket() failed errno=%d (%s)\n",
915 af, err, sock_errstr(err) );
920 if ( l.sl_sd >= dtblsize ) {
921 Debug( LDAP_DEBUG_ANY,
922 "daemon: listener descriptor %ld is too great %ld\n",
923 (long) l.sl_sd, (long) dtblsize, 0 );
924 tcp_close( l.sl_sd );
930 if ( (*sal)->sa_family == AF_LOCAL ) {
931 unlink ( ((struct sockaddr_un *)*sal)->sun_path );
936 /* enable address reuse */
938 rc = setsockopt( l.sl_sd, SOL_SOCKET, SO_REUSEADDR,
939 (char *) &tmp, sizeof(tmp) );
940 if ( rc == AC_SOCKET_ERROR ) {
941 int err = sock_errno();
942 Debug( LDAP_DEBUG_ANY,
943 "slapd(%ld): setsockopt(SO_REUSEADDR) failed errno=%d (%s)\n",
944 (long) l.sl_sd, err, sock_errstr(err) );
949 switch( (*sal)->sa_family ) {
951 addrlen = sizeof(struct sockaddr_in);
956 /* Try to use IPv6 sockets for IPv6 only */
958 rc = setsockopt( l.sl_sd, IPPROTO_IPV6, IPV6_V6ONLY,
959 (char *) &tmp, sizeof(tmp) );
960 if ( rc == AC_SOCKET_ERROR ) {
961 int err = sock_errno();
962 Debug( LDAP_DEBUG_ANY,
963 "slapd(%ld): setsockopt(IPV6_V6ONLY) failed errno=%d (%s)\n",
964 (long) l.sl_sd, err, sock_errstr(err) );
967 addrlen = sizeof(struct sockaddr_in6);
972 addrlen = sizeof(struct sockaddr_un);
977 if (bind(l.sl_sd, *sal, addrlen)) {
979 Debug( LDAP_DEBUG_ANY, "daemon: bind(%ld) failed errno=%d (%s)\n",
980 (long) l.sl_sd, err, sock_errstr(err) );
981 tcp_close( l.sl_sd );
986 switch ( (*sal)->sa_family ) {
989 char *addr = ((struct sockaddr_un *)*sal)->sun_path;
990 #if 0 /* don't muck with socket perms */
991 if ( chmod( addr, l.sl_perms ) < 0 && crit ) {
992 int err = sock_errno();
993 Debug( LDAP_DEBUG_ANY, "daemon: fchmod(%ld) failed errno=%d (%s)",
994 (long) l.sl_sd, err, sock_errstr(err) );
995 tcp_close( l.sl_sd );
996 slap_free_listener_addresses(psal);
1000 l.sl_name.bv_len = strlen(addr) + sizeof("PATH=") - 1;
1001 l.sl_name.bv_val = ber_memalloc( l.sl_name.bv_len + 1 );
1002 snprintf( l.sl_name.bv_val, l.sl_name.bv_len + 1,
1005 #endif /* LDAP_PF_LOCAL */
1009 #if defined( HAVE_GETADDRINFO ) && defined( HAVE_INET_NTOP )
1010 char addr[INET_ADDRSTRLEN];
1011 inet_ntop( AF_INET, &((struct sockaddr_in *)*sal)->sin_addr,
1012 addr, sizeof(addr) );
1015 s = inet_ntoa( ((struct sockaddr_in *) *sal)->sin_addr );
1017 port = ntohs( ((struct sockaddr_in *)*sal) ->sin_port );
1018 l.sl_name.bv_val = ber_memalloc( sizeof("IP=255.255.255.255:65535") );
1019 snprintf( l.sl_name.bv_val, sizeof("IP=255.255.255.255:65535"),
1021 s != NULL ? s : SLAP_STRING_UNKNOWN, port );
1022 l.sl_name.bv_len = strlen( l.sl_name.bv_val );
1025 #ifdef LDAP_PF_INET6
1027 char addr[INET6_ADDRSTRLEN];
1028 inet_ntop( AF_INET6, &((struct sockaddr_in6 *)*sal)->sin6_addr,
1030 port = ntohs( ((struct sockaddr_in6 *)*sal)->sin6_port );
1031 l.sl_name.bv_len = strlen(addr) + sizeof("IP= 65535");
1032 l.sl_name.bv_val = ber_memalloc( l.sl_name.bv_len );
1033 snprintf( l.sl_name.bv_val, l.sl_name.bv_len, "IP=%s %d",
1035 l.sl_name.bv_len = strlen( l.sl_name.bv_val );
1037 #endif /* LDAP_PF_INET6 */
1040 Debug( LDAP_DEBUG_ANY, "daemon: unsupported address family (%d)\n",
1041 (int) (*sal)->sa_family, 0, 0 );
1045 AC_MEMCPY(&l.sl_sa, *sal, addrlen);
1046 ber_str2bv( url, 0, 1, &l.sl_url);
1047 li = ch_malloc( sizeof( Listener ) );
1049 slap_listeners[*cur] = li;
1053 } /* while ( *sal != NULL ) */
1055 slap_free_listener_addresses(psal);
1057 if ( l.sl_url.bv_val == NULL )
1059 Debug( LDAP_DEBUG_TRACE,
1060 "slap_open_listener: failed on %s\n", url, 0, 0 );
1064 Debug( LDAP_DEBUG_TRACE, "daemon: initialized %s\n",
1065 l.sl_url.bv_val, 0, 0 );
1069 static int sockinit(void);
1070 static int sockdestroy(void);
1072 int slapd_daemon_init( const char *urls )
1077 Debug( LDAP_DEBUG_ARGS, "daemon_init: %s\n",
1078 urls ? urls : "<null>", 0, 0 );
1079 if( (rc = sockinit()) != 0 ) {
1084 dtblsize = sysconf( _SC_OPEN_MAX );
1085 #elif HAVE_GETDTABLESIZE
1086 dtblsize = getdtablesize();
1088 dtblsize = FD_SETSIZE;
1091 /* open a pipe (or something equivalent connected to itself).
1092 * we write a byte on this fd whenever we catch a signal. The main
1093 * loop will be select'ing on this socket, and will wake up when
1094 * this byte arrives.
1096 if( (rc = lutil_pair( wake_sds )) < 0 ) {
1097 Debug( LDAP_DEBUG_ANY,
1098 "daemon: lutil_pair() failed rc=%d\n", rc, 0, 0 );
1104 if( urls == NULL ) {
1108 u = ldap_str2charray( urls, " " );
1110 if( u == NULL || u[0] == NULL ) {
1111 Debug( LDAP_DEBUG_ANY, "daemon_init: no urls (%s) provided.\n",
1116 for( i=0; u[i] != NULL; i++ ) {
1117 Debug( LDAP_DEBUG_TRACE, "daemon_init: listen on %s\n",
1122 Debug( LDAP_DEBUG_ANY, "daemon_init: no listeners to open (%s)\n",
1124 ldap_charray_free( u );
1128 Debug( LDAP_DEBUG_TRACE, "daemon_init: %d listeners to open...\n",
1130 slap_listeners = ch_malloc( (i+1)*sizeof(Listener *) );
1132 for(n = 0, j = 0; u[n]; n++ ) {
1133 if ( slap_open_listener( u[n], &i, &j ) ) {
1134 ldap_charray_free( u );
1138 slap_listeners[j] = NULL;
1140 Debug( LDAP_DEBUG_TRACE, "daemon_init: %d listeners opened\n",
1144 if( slapd_register_slp ) {
1145 slapd_slp_init( urls );
1150 ldap_charray_free( u );
1151 ldap_pvt_thread_mutex_init( &slap_daemon.sd_mutex );
1157 slapd_daemon_destroy(void)
1159 connections_destroy();
1160 tcp_close( wake_sds[1] );
1161 tcp_close( wake_sds[0] );
1165 if( slapd_register_slp ) {
1182 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1183 if ( slap_listeners[l]->sl_sd != AC_SOCKET_INVALID ) {
1185 slapd_remove( slap_listeners[l]->sl_sd, 0, 0 );
1186 #ifdef LDAP_PF_LOCAL
1187 if ( slap_listeners[l]->sl_sa.sa_addr.sa_family == AF_LOCAL ) {
1188 unlink( slap_listeners[l]->sl_sa.sa_un_addr.sun_path );
1190 #endif /* LDAP_PF_LOCAL */
1191 slapd_close( slap_listeners[l]->sl_sd );
1193 if ( slap_listeners[l]->sl_url.bv_val )
1194 ber_memfree( slap_listeners[l]->sl_url.bv_val );
1195 if ( slap_listeners[l]->sl_name.bv_val )
1196 ber_memfree( slap_listeners[l]->sl_name.bv_val );
1197 free ( slap_listeners[l] );
1198 slap_listeners[l] = NULL;
1203 slapd_handle_listener(
1210 socklen_t len = sizeof(from);
1213 struct berval authid = BER_BVNULL;
1214 #ifdef SLAPD_RLOOKUPS
1215 char hbuf[NI_MAXHOST];
1218 char *dnsname = NULL;
1219 char *peeraddr = NULL;
1220 #ifdef LDAP_PF_LOCAL
1221 char peername[MAXPATHLEN + sizeof("PATH=")];
1222 #elif defined(LDAP_PF_INET6)
1223 char peername[sizeof("IP=ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff 65535")];
1225 char peername[sizeof("IP=255.255.255.255:65336")];
1226 #endif /* LDAP_PF_LOCAL */
1230 #ifdef LDAP_CONNECTIONLESS
1231 if ( sl->sl_is_udp ) {
1232 /* The first time we receive a query, we set this
1233 * up as a "connection". It remains open for the life
1236 if ( sl->sl_is_udp < 2 ) {
1237 id = connection_init( sl->sl_sd, sl, "", "",
1238 CONN_IS_UDP, ssf, NULL );
1245 # ifdef LDAP_PF_LOCAL
1246 /* FIXME: apparently accept doesn't fill
1247 * the sun_path sun_path member */
1248 from.sa_un_addr.sun_path[0] = '\0';
1249 # endif /* LDAP_PF_LOCAL */
1251 s = accept( sl->sl_sd, (struct sockaddr *) &from, &len );
1252 if ( s == AC_SOCKET_INVALID ) {
1253 int err = sock_errno();
1264 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
1266 /* Stop listening until an existing session closes */
1268 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
1271 Debug( LDAP_DEBUG_ANY,
1272 "daemon: accept(%ld) failed errno=%d (%s)\n",
1273 (long) sl->sl_sd, err,
1275 ldap_pvt_thread_yield();
1279 #ifndef HAVE_WINSOCK
1280 /* make sure descriptor number isn't too great */
1281 if ( s >= dtblsize ) {
1282 Debug( LDAP_DEBUG_ANY,
1283 "daemon: %ld beyond descriptor table size %ld\n",
1284 (long) s, (long) dtblsize, 0 );
1287 ldap_pvt_thread_yield();
1293 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
1295 /* newly accepted stream should not be in any of the FD SETS */
1296 assert( SLAP_SOCK_NOT_ACTIVE( s ));
1298 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
1301 #if defined( SO_KEEPALIVE ) || defined( TCP_NODELAY )
1302 #ifdef LDAP_PF_LOCAL
1303 /* for IPv4 and IPv6 sockets only */
1304 if ( from.sa_addr.sa_family != AF_LOCAL )
1305 #endif /* LDAP_PF_LOCAL */
1310 /* enable keep alives */
1312 rc = setsockopt( s, SOL_SOCKET, SO_KEEPALIVE,
1313 (char *) &tmp, sizeof(tmp) );
1314 if ( rc == AC_SOCKET_ERROR ) {
1315 int err = sock_errno();
1316 Debug( LDAP_DEBUG_ANY,
1317 "slapd(%ld): setsockopt(SO_KEEPALIVE) failed "
1318 "errno=%d (%s)\n", (long) s, err, sock_errstr(err) );
1322 /* enable no delay */
1324 rc = setsockopt( s, IPPROTO_TCP, TCP_NODELAY,
1325 (char *)&tmp, sizeof(tmp) );
1326 if ( rc == AC_SOCKET_ERROR ) {
1327 int err = sock_errno();
1328 Debug( LDAP_DEBUG_ANY,
1329 "slapd(%ld): setsockopt(TCP_NODELAY) failed "
1330 "errno=%d (%s)\n", (long) s, err, sock_errstr(err) );
1336 Debug( LDAP_DEBUG_CONNS, "daemon: new connection on %ld\n",
1338 switch ( from.sa_addr.sa_family ) {
1339 # ifdef LDAP_PF_LOCAL
1341 /* FIXME: apparently accept doesn't fill
1342 * the sun_path sun_path member */
1343 if ( from.sa_un_addr.sun_path[0] == '\0' ) {
1344 AC_MEMCPY( from.sa_un_addr.sun_path,
1345 sl->sl_sa.sa_un_addr.sun_path,
1346 sizeof( from.sa_un_addr.sun_path ) );
1349 sprintf( peername, "PATH=%s", from.sa_un_addr.sun_path );
1355 if( getpeereid( s, &uid, &gid ) == 0 ) {
1356 authid.bv_val = ch_malloc(
1357 sizeof("uidnumber=4294967295+gidnumber=4294967295,"
1358 "cn=peercred,cn=external,cn=auth"));
1359 authid.bv_len = sprintf( authid.bv_val,
1360 "uidnumber=%d+gidnumber=%d,"
1361 "cn=peercred,cn=external,cn=auth",
1362 (int) uid, (int) gid);
1367 #endif /* LDAP_PF_LOCAL */
1369 # ifdef LDAP_PF_INET6
1371 if ( IN6_IS_ADDR_V4MAPPED(&from.sa_in6_addr.sin6_addr) ) {
1372 peeraddr = inet_ntoa( *((struct in_addr *)
1373 &from.sa_in6_addr.sin6_addr.s6_addr[12]) );
1374 sprintf( peername, "IP=%s:%d",
1375 peeraddr != NULL ? peeraddr : SLAP_STRING_UNKNOWN,
1376 (unsigned) ntohs( from.sa_in6_addr.sin6_port ) );
1378 char addr[INET6_ADDRSTRLEN];
1380 peeraddr = (char *) inet_ntop( AF_INET6,
1381 &from.sa_in6_addr.sin6_addr,
1382 addr, sizeof addr );
1383 sprintf( peername, "IP=%s %d",
1384 peeraddr != NULL ? peeraddr : SLAP_STRING_UNKNOWN,
1385 (unsigned) ntohs( from.sa_in6_addr.sin6_port ) );
1388 # endif /* LDAP_PF_INET6 */
1391 peeraddr = inet_ntoa( from.sa_in_addr.sin_addr );
1392 sprintf( peername, "IP=%s:%d",
1393 peeraddr != NULL ? peeraddr : SLAP_STRING_UNKNOWN,
1394 (unsigned) ntohs( from.sa_in_addr.sin_port ) );
1402 if ( ( from.sa_addr.sa_family == AF_INET )
1403 #ifdef LDAP_PF_INET6
1404 || ( from.sa_addr.sa_family == AF_INET6 )
1407 #ifdef SLAPD_RLOOKUPS
1408 if ( use_reverse_lookup ) {
1410 if (ldap_pvt_get_hname( (const struct sockaddr *)&from, len, hbuf,
1411 sizeof(hbuf), &herr ) == 0) {
1412 ldap_pvt_str2lower( hbuf );
1418 #endif /* SLAPD_RLOOKUPS */
1421 if ( !hosts_ctl("slapd",
1422 dnsname != NULL ? dnsname : SLAP_STRING_UNKNOWN,
1423 peeraddr != NULL ? peeraddr : SLAP_STRING_UNKNOWN,
1424 SLAP_STRING_UNKNOWN ))
1427 Statslog( LDAP_DEBUG_STATS,
1428 "fd=%ld DENIED from %s (%s)\n",
1430 dnsname != NULL ? dnsname : SLAP_STRING_UNKNOWN,
1431 peeraddr != NULL ? peeraddr : SLAP_STRING_UNKNOWN,
1436 #endif /* HAVE_TCPD */
1439 id = connection_init(s, sl,
1440 dnsname != NULL ? dnsname : SLAP_STRING_UNKNOWN,
1443 sl->sl_is_tls ? CONN_IS_TLS : 0,
1448 authid.bv_val ? &authid : NULL );
1450 if( authid.bv_val ) ch_free(authid.bv_val);
1453 Debug( LDAP_DEBUG_ANY,
1454 "daemon: connection_init(%ld, %s, %s) failed.\n",
1455 (long) s, peername, sl->sl_name.bv_val );
1460 Statslog( LDAP_DEBUG_STATS,
1461 "conn=%ld fd=%ld ACCEPT from %s (%s)\n",
1462 id, (long) s, peername, sl->sl_name.bv_val,
1465 slapd_add( s, 1, NULL );
1475 time_t last_idle_check = 0;
1476 struct timeval idle;
1478 #define SLAPD_IDLE_CHECK_LIMIT 4
1480 if ( global_idletimeout > 0 ) {
1481 last_idle_check = slap_get_time();
1482 /* Set the select timeout.
1483 * Don't just truncate, preserve the fractions of
1484 * seconds to prevent sleeping for zero time.
1486 idle.tv_sec = global_idletimeout/SLAPD_IDLE_CHECK_LIMIT;
1487 idle.tv_usec = global_idletimeout - idle.tv_sec * SLAPD_IDLE_CHECK_LIMIT;
1488 idle.tv_usec *= 1000000 / SLAPD_IDLE_CHECK_LIMIT;
1494 slapd_add( wake_sds[0], 0, NULL );
1496 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1497 if ( slap_listeners[l]->sl_sd == AC_SOCKET_INVALID )
1499 #ifdef LDAP_CONNECTIONLESS
1500 /* Since this is connectionless, the data port is the
1501 * listening port. The listen() and accept() calls
1504 if ( slap_listeners[l]->sl_is_udp ) {
1505 slapd_add( slap_listeners[l]->sl_sd, 1, slap_listeners[l] );
1510 if ( listen( slap_listeners[l]->sl_sd, SLAPD_LISTEN ) == -1 ) {
1511 int err = sock_errno();
1513 #ifdef LDAP_PF_INET6
1514 /* If error is EADDRINUSE, we are trying to listen to INADDR_ANY and
1515 * we are already listening to in6addr_any, then we want to ignore
1516 * this and continue.
1518 if ( err == EADDRINUSE ) {
1520 struct sockaddr_in sa = slap_listeners[l]->sl_sa.sa_in_addr;
1521 struct sockaddr_in6 sa6;
1523 if ( sa.sin_family == AF_INET &&
1524 sa.sin_addr.s_addr == htonl(INADDR_ANY) ) {
1525 for ( i = 0 ; i < l; i++ ) {
1526 sa6 = slap_listeners[i]->sl_sa.sa_in6_addr;
1527 if ( sa6.sin6_family == AF_INET6 &&
1528 !memcmp( &sa6.sin6_addr, &in6addr_any, sizeof(struct in6_addr) ) )
1533 /* We are already listening to in6addr_any */
1534 Debug( LDAP_DEBUG_CONNS,
1535 "daemon: Attempt to listen to 0.0.0.0 failed, already listening on ::, assuming IPv4 included\n",
1537 slapd_close( slap_listeners[l]->sl_sd );
1538 slap_listeners[l]->sl_sd = AC_SOCKET_INVALID;
1544 Debug( LDAP_DEBUG_ANY,
1545 "daemon: listen(%s, 5) failed errno=%d (%s)\n",
1546 slap_listeners[l]->sl_url.bv_val, err,
1548 return( (void*)-1 );
1551 slapd_add( slap_listeners[l]->sl_sd, 0, slap_listeners[l] );
1554 #ifdef HAVE_NT_SERVICE_MANAGER
1555 if ( started_event != NULL ) {
1556 ldap_pvt_thread_cond_signal( &started_event );
1559 /* initialization complete. Here comes the loop. */
1561 while ( !slapd_shutdown ) {
1565 ber_socket_t nfds, nrfds, nwfds;
1566 #define SLAPD_EBADF_LIMIT 16
1574 struct timeval *tvp;
1576 struct timeval *cat;
1579 now = slap_get_time();
1581 if( ( global_idletimeout > 0 ) &&
1582 difftime( last_idle_check +
1583 global_idletimeout/SLAPD_IDLE_CHECK_LIMIT, now ) < 0 ) {
1584 connections_timeout_idle( now );
1585 last_idle_check = now;
1590 if( slapd_gentle_shutdown ) {
1591 ber_socket_t active;
1593 if( slapd_gentle_shutdown == 1 ) {
1594 Debug( LDAP_DEBUG_ANY, "slapd gentle shutdown\n", 0, 0, 0 );
1595 close_listeners( 1 );
1596 frontendDB->be_restrictops |= SLAP_RESTRICT_OP_WRITES;
1597 slapd_gentle_shutdown = 2;
1600 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
1601 active = slap_daemon.sd_nactives;
1602 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
1612 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
1614 nwriters = slap_daemon.sd_nwriters;
1617 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1618 if ( slap_listeners[l]->sl_sd == AC_SOCKET_INVALID )
1620 if ( slap_listeners[l]->sl_is_mute )
1621 SLAP_SOCK_SET_MUTE( slap_listeners[l]->sl_sd );
1623 if ( SLAP_SOCK_IS_MUTE( slap_listeners[l]->sl_sd ))
1624 SLAP_SOCK_CLR_MUTE( slap_listeners[l]->sl_sd );
1627 nfds = SLAP_EVENT_MAX;
1629 if ( global_idletimeout && slap_daemon.sd_nactives )
1632 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
1635 #if defined(HAVE_YIELDING_SELECT) || defined(NO_THREADS)
1636 && ( tv.tv_sec || tv.tv_usec )
1643 ldap_pvt_thread_mutex_lock( &syncrepl_rq.rq_mutex );
1644 rtask = ldap_pvt_runqueue_next_sched( &syncrepl_rq, &cat );
1645 while ( cat && cat->tv_sec && cat->tv_sec <= now ) {
1646 if ( ldap_pvt_runqueue_isrunning( &syncrepl_rq, rtask )) {
1647 ldap_pvt_runqueue_resched( &syncrepl_rq, rtask, 0 );
1649 ldap_pvt_runqueue_runtask( &syncrepl_rq, rtask );
1650 ldap_pvt_runqueue_resched( &syncrepl_rq, rtask, 0 );
1651 ldap_pvt_thread_mutex_unlock( &syncrepl_rq.rq_mutex );
1652 ldap_pvt_thread_pool_submit( &connection_pool,
1653 rtask->routine, (void *) rtask );
1654 ldap_pvt_thread_mutex_lock( &syncrepl_rq.rq_mutex );
1656 rtask = ldap_pvt_runqueue_next_sched( &syncrepl_rq, &cat );
1658 ldap_pvt_thread_mutex_unlock( &syncrepl_rq.rq_mutex );
1660 if ( cat != NULL ) {
1661 time_t diff = difftime( cat->tv_sec, now );
1664 if ( tvp == NULL || diff < tv.tv_sec ) {
1671 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1672 if ( slap_listeners[l]->sl_sd == AC_SOCKET_INVALID ||
1673 slap_listeners[l]->sl_is_mute )
1676 Debug( LDAP_DEBUG_CONNS,
1677 "daemon: select: listen=%d active_threads=%d tvp=%s\n",
1678 slap_listeners[l]->sl_sd, at,
1679 tvp == NULL ? "NULL" : "zero" );
1682 switch(ns = SLAP_EVENT_WAIT(tvp))
1684 case -1: { /* failure - try again */
1685 int err = sock_errno();
1689 /* you'd think this would be EBADF */
1690 || err == WSAENOTSOCK
1693 if (++ebadf < SLAPD_EBADF_LIMIT)
1697 if( err != EINTR ) {
1698 Debug( LDAP_DEBUG_CONNS,
1699 "daemon: select failed (%d): %s\n",
1700 err, sock_errstr(err), 0 );
1706 case 0: /* timeout - let threads run */
1708 Debug( LDAP_DEBUG_CONNS, "daemon: select timeout - yielding\n",
1711 ldap_pvt_thread_yield();
1714 default: /* something happened - deal with it */
1715 if( slapd_shutdown ) continue;
1718 Debug( LDAP_DEBUG_CONNS, "daemon: activity on %d descriptors\n",
1723 /* We don't need to examine the event status for wake_sds;
1724 * if waking is set and we woke up, we'll read whatever
1729 tcp_read( wake_sds[0], c, sizeof(c) );
1735 #if SLAP_EVENTS_ARE_INDEXED
1736 /* The event slot equals the descriptor number - this is
1737 * true for Unix select and poll. We treat Windows select
1738 * like this too, even though it's a kludge.
1740 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1743 if ( ns <= 0 ) break;
1745 if ( slap_listeners[l]->sl_sd == AC_SOCKET_INVALID )
1748 if ( !SLAP_EVENT_IS_READ( slap_listeners[l]->sl_sd ))
1753 rc = slapd_handle_listener(slap_listeners[l]);
1755 #ifdef LDAP_CONNECTIONLESS
1756 /* This is a UDP session, let the data loop process it */
1760 /* Don't need to look at this in the data loops */
1761 SLAP_EVENT_CLR_READ( slap_listeners[l]->sl_sd );
1762 SLAP_EVENT_CLR_WRITE( slap_listeners[l]->sl_sd );
1765 /* bypass the following tests if no descriptors left */
1767 ldap_pvt_thread_yield();
1771 Debug( LDAP_DEBUG_CONNS, "daemon: activity on:", 0, 0, 0 );
1773 nrfds = readfds.fd_count;
1774 nwfds = writefds.fd_count;
1775 for ( i = 0; i < readfds.fd_count; i++ ) {
1776 Debug( LDAP_DEBUG_CONNS, " %d%s",
1777 readfds.fd_array[i], "r", 0 );
1779 for ( i = 0; i < writefds.fd_count; i++ ) {
1780 Debug( LDAP_DEBUG_CONNS, " %d%s",
1781 writefds.fd_array[i], "w", 0 );
1787 for ( i = 0; i < nfds; i++ ) {
1790 r = SLAP_EVENT_IS_READ( i );
1791 w = SLAP_EVENT_IS_WRITE( i );
1793 Debug( LDAP_DEBUG_CONNS, " %d%s%s", i,
1794 r ? "r" : "", w ? "w" : "" );
1804 if ( ns <= 0 ) break;
1807 Debug( LDAP_DEBUG_CONNS, "\n", 0, 0, 0 );
1810 /* loop through the writers */
1811 for ( i = 0; nwfds > 0; i++ )
1815 wd = writefds.fd_array[i];
1817 if( ! SLAP_EVENT_IS_WRITE( i ) ) {
1824 Debug( LDAP_DEBUG_CONNS,
1825 "daemon: write active on %d\n",
1828 * NOTE: it is possible that the connection was closed
1829 * and that the stream is now inactive.
1830 * connection_write() must valid the stream is still
1834 if ( connection_write( wd ) < 0 ) {
1835 if ( SLAP_EVENT_IS_READ( wd )) {
1836 SLAP_EVENT_CLR_READ( (unsigned) wd );
1843 for ( i = 0; nrfds > 0; i++ )
1847 rd = readfds.fd_array[i];
1849 if( ! SLAP_EVENT_IS_READ( i ) ) {
1856 Debug ( LDAP_DEBUG_CONNS,
1857 "daemon: read activity on %d\n", rd, 0, 0 );
1859 * NOTE: it is possible that the connection was closed
1860 * and that the stream is now inactive.
1861 * connection_read() must valid the stream is still
1865 if ( connection_read( rd ) < 0 ) {
1869 #else /* !SLAP_EVENTS_ARE_INDEXED */
1871 /* The events are returned in an arbitrary list. This is true
1872 * for /dev/poll, epoll and kqueue. In order to prioritize things
1873 * so that we can handle wake_sds first, listeners second, and then
1874 * all other connections last (as we do for select), we would need
1875 * to use multiple event handles and cascade them.
1877 * That seems like a bit of hassle. So the wake_sds check has moved
1878 * above. For epoll and kqueue we can associate arbitrary data with
1879 * an event, so we could use pointers to the listener structure
1880 * instead of just the file descriptor. For /dev/poll we have to
1881 * search the listeners array for a matching descriptor.
1884 Debug( LDAP_DEBUG_CONNS, "daemon: activity on:", 0, 0, 0 );
1886 for (i=0; i<ns; i++) {
1889 if ( SLAP_EVENT_IS_LISTENER(i)
1890 #ifdef LDAP_CONNECTIONLESS
1891 && !((SLAP_EVENT_LISTENER(i))->sl_is_udp)
1895 r = SLAP_EVENT_IS_READ( i );
1896 w = SLAP_EVENT_IS_WRITE( i );
1898 Debug( LDAP_DEBUG_CONNS, " %d%s%s", SLAP_EVENT_FD(i),
1899 r ? "r" : "", w ? "w" : "" );
1903 for (i=0; i<ns; i++) {
1906 if ( SLAP_EVENT_IS_LISTENER(i) ) {
1907 rc = slapd_handle_listener( SLAP_EVENT_LISTENER( i ));
1909 /* If we found a regular listener, rc is now zero, and we
1910 * can skip the data portion. But if it was a UDP listener
1911 * then rc is still 1, and we want to handle the data.
1914 fd = SLAP_EVENT_FD( i );
1916 if( SLAP_EVENT_IS_WRITE( i ) ) {
1917 Debug( LDAP_DEBUG_CONNS,
1918 "daemon: write active on %d\n",
1921 * NOTE: it is possible that the connection was closed
1922 * and that the stream is now inactive.
1923 * connection_write() must valid the stream is still
1927 if ( connection_write( fd ) < 0 ) {
1932 if( SLAP_EVENT_IS_READ( i ) ) {
1933 Debug( LDAP_DEBUG_CONNS,
1934 "daemon: read active on %d\n",
1937 * NOTE: it is possible that the connection was closed
1938 * and that the stream is now inactive.
1939 * connection_read() must valid the stream is still
1943 if ( connection_read( fd ) < 0 ) {
1949 #endif /* SLAP_EVENTS_ARE_INDEXED */
1951 ldap_pvt_thread_yield();
1954 if( slapd_shutdown == 1 ) {
1955 Debug( LDAP_DEBUG_TRACE,
1956 "daemon: shutdown requested and initiated.\n",
1959 } else if ( slapd_shutdown == 2 ) {
1960 #ifdef HAVE_NT_SERVICE_MANAGER
1961 Debug( LDAP_DEBUG_TRACE,
1962 "daemon: shutdown initiated by Service Manager.\n",
1964 #else /* !HAVE_NT_SERVICE_MANAGER */
1965 Debug( LDAP_DEBUG_TRACE,
1966 "daemon: abnormal condition, shutdown initiated.\n",
1968 #endif /* !HAVE_NT_SERVICE_MANAGER */
1970 Debug( LDAP_DEBUG_TRACE,
1971 "daemon: no active streams, shutdown initiated.\n",
1975 if( slapd_gentle_shutdown != 2 ) {
1976 close_listeners ( 0 );
1979 free ( slap_listeners );
1980 slap_listeners = NULL;
1982 if( !slapd_gentle_shutdown ) {
1983 slapd_abrupt_shutdown = 1;
1984 connections_shutdown();
1987 Debug( LDAP_DEBUG_ANY,
1988 "slapd shutdown: waiting for %d threads to terminate\n",
1989 ldap_pvt_thread_pool_backload(&connection_pool), 0, 0 );
1990 ldap_pvt_thread_pool_destroy(&connection_pool, 1);
1996 int slapd_daemon( void )
2002 #define SLAPD_LISTENER_THREAD 1
2003 #if defined( SLAPD_LISTENER_THREAD )
2005 ldap_pvt_thread_t listener_tid;
2007 /* listener as a separate THREAD */
2008 rc = ldap_pvt_thread_create( &listener_tid,
2009 0, slapd_daemon_task, NULL );
2012 Debug( LDAP_DEBUG_ANY,
2013 "listener ldap_pvt_thread_create failed (%d)\n", rc, 0, 0 );
2017 /* wait for the listener thread to complete */
2018 ldap_pvt_thread_join( listener_tid, (void *) NULL );
2021 /* experimental code */
2022 slapd_daemon_task( NULL );
2031 #if defined( HAVE_WINSOCK2 )
2032 WORD wVersionRequested;
2036 wVersionRequested = MAKEWORD( 2, 0 );
2038 err = WSAStartup( wVersionRequested, &wsaData );
2040 /* Tell the user that we couldn't find a usable */
2045 /* Confirm that the WinSock DLL supports 2.0.*/
2046 /* Note that if the DLL supports versions greater */
2047 /* than 2.0 in addition to 2.0, it will still return */
2048 /* 2.0 in wVersion since that is the version we */
2051 if ( LOBYTE( wsaData.wVersion ) != 2 ||
2052 HIBYTE( wsaData.wVersion ) != 0 )
2054 /* Tell the user that we couldn't find a usable */
2060 /* The WinSock DLL is acceptable. Proceed. */
2061 #elif defined( HAVE_WINSOCK )
2063 if ( WSAStartup( 0x0101, &wsaData ) != 0 ) {
2070 int sockdestroy(void)
2072 #if defined( HAVE_WINSOCK2 ) || defined( HAVE_WINSOCK )
2079 slap_sig_shutdown( int sig )
2082 Debug(LDAP_DEBUG_TRACE, "slap_sig_shutdown: signal %d\n", sig, 0, 0);
2086 * If the NT Service Manager is controlling the server, we don't
2087 * want SIGBREAK to kill the server. For some strange reason,
2088 * SIGBREAK is generated when a user logs out.
2091 #if HAVE_NT_SERVICE_MANAGER && SIGBREAK
2092 if (is_NT_Service && sig == SIGBREAK)
2097 if (sig == SIGHUP && global_gentlehup && slapd_gentle_shutdown == 0)
2098 slapd_gentle_shutdown = 1;
2104 /* reinstall self */
2105 (void) SIGNAL_REINSTALL( sig, slap_sig_shutdown );
2109 slap_sig_wake( int sig )
2113 /* reinstall self */
2114 (void) SIGNAL_REINSTALL( sig, slap_sig_wake );
2118 void slapd_add_internal(ber_socket_t s, int isactive) {
2119 slapd_add(s, isactive, NULL);
2122 Listener ** slapd_get_listeners(void) {
2123 return slap_listeners;
2126 void slap_wake_listener()