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 #define SLAP_STRING_UNKNOWN STRING_UNKNOWN
47 int allow_severity = LOG_INFO;
48 int deny_severity = LOG_NOTICE;
49 #else /* ! TCP Wrappers */
50 #define SLAP_STRING_UNKNOWN "unknown"
51 #endif /* ! TCP Wrappers */
55 /* this should go in <ldap.h> as soon as it is accepted */
56 #define LDAPI_MOD_URLEXT "x-mod"
57 #endif /* LDAP_PF_LOCAL */
60 int slap_inet4or6 = AF_UNSPEC;
62 int slap_inet4or6 = AF_INET;
67 ber_socket_t dtblsize;
68 slap_ssf_t local_ssf = LDAP_PVT_SASL_LOCAL_SSF;
70 Listener **slap_listeners = NULL;
72 #define SLAPD_LISTEN 10
74 static ber_socket_t wake_sds[2];
78 #define WAKE_LISTENER(w) \
79 do { if (w && waking < 5) { tcp_write( wake_sds[1], "0", 1 ); waking++;} } while(0)
81 volatile sig_atomic_t slapd_shutdown = 0, slapd_gentle_shutdown = 0;
82 volatile sig_atomic_t slapd_abrupt_shutdown = 0;
84 static struct slap_daemon {
85 ldap_pvt_thread_mutex_t sd_mutex;
87 ber_socket_t sd_nactives;
91 struct epoll_event *sd_epolls;
99 /* In winsock, accept() returns values higher than dtblsize
100 so don't bother with this optimization */
111 #define SLAP_EVENTS_ARE_INDEXED 0
112 #define SLAP_SOCK_IX(fd) (slap_daemon.sd_index[fd])
113 #define SLAP_SOCK_EP(fd) (slap_daemon.sd_epolls[SLAP_SOCK_IX(fd)])
114 #define SLAP_SOCK_FD(fd) (SLAP_SOCK_EP(fd).data.fd)
115 #define SLAP_SOCK_EV(fd) (SLAP_SOCK_EP(fd).events)
116 #define SLAP_SOCK_IS_ACTIVE(fd) (SLAP_SOCK_IX(fd) != -1 && SLAP_SOCK_FD(fd) == fd)
117 #define SLAP_SOCK_NOT_ACTIVE(fd) (SLAP_SOCK_IX(fd) == -1)
118 #define SLAP_SOCK_IS_SET(fd, mode) (SLAP_SOCK_EV(fd) & mode)
120 #define SLAP_SOCK_IS_READ(fd) SLAP_SOCK_IS_SET(fd, EPOLLIN)
121 #define SLAP_SOCK_IS_WRITE(fd) SLAP_SOCK_IS_SET(fd, EPOLLOUT)
123 #define SLAP_SET_SOCK(fd, events) do { \
124 assert(SLAP_SOCK_IS_ACTIVE(fd)); \
125 if ((SLAP_SOCK_EV(fd) & events) != events) { \
126 SLAP_SOCK_EV(fd) |= events; \
127 rc = epoll_ctl(slap_daemon.sd_epfd, EPOLL_CTL_MOD, fd, \
128 &SLAP_SOCK_EP(fd)); \
132 #define SLAP_CLR_SOCK(fd, events) do { \
133 assert(SLAP_SOCK_IS_ACTIVE(fd)); \
134 if ((SLAP_SOCK_EV(fd) & events)) { \
135 SLAP_SOCK_EV(fd) &= ~events; \
136 rc = epoll_ctl(slap_daemon.sd_epfd, EPOLL_CTL_MOD, fd, \
137 &SLAP_SOCK_EP(fd)); \
141 #define SLAP_SOCK_SET_READ(fd) SLAP_SET_SOCK(fd, EPOLLIN)
142 #define SLAP_SOCK_SET_WRITE(fd) SLAP_SET_SOCK(fd, EPOLLOUT)
144 #define SLAP_SOCK_CLR_READ(fd) SLAP_CLR_SOCK(fd, EPOLLIN)
145 #define SLAP_SOCK_CLR_WRITE(fd) SLAP_CLR_SOCK(fd, EPOLLOUT)
147 #define SLAP_CLR_EVENT(i, events) (revents[i].events &= ~events)
149 #define SLAP_EVENT_CLR_READ(i) SLAP_CLR_EVENT(i, EPOLLIN)
150 #define SLAP_EVENT_CLR_WRITE(i) SLAP_CLR_EVENT(i, EPOLLOUT)
152 #define SLAP_CHK_EVENT(i, events) (revents[i].events & events)
154 #define SLAP_EVENT_IS_READ(i) SLAP_CHK_EVENT(i, EPOLLIN)
155 #define SLAP_EVENT_IS_WRITE(i) SLAP_CHK_EVENT(i, EPOLLOUT)
157 #define SLAP_EVENT_FD(i) (revents[i].data.fd)
159 #define SLAP_ADD_SOCK(fd) do { \
160 SLAP_SOCK_IX(fd) = slap_daemon.sd_nfds; \
161 SLAP_SOCK_FD(fd) = fd; \
162 SLAP_SOCK_EV(fd) = EPOLLIN; \
163 rc = epoll_ctl(slap_daemon.sd_epfd, EPOLL_CTL_ADD, fd, \
164 &SLAP_SOCK_EP(fd)); \
165 if ( rc == 0 ) slap_daemon.sd_nfds++; \
168 #define SLAP_DEL_SOCK(fd) do { \
169 int index = SLAP_SOCK_IX(fd);
171 rc = epoll_ctl(slap_daemon.sd_epfd, EPOLL_CTL_DEL, fd, \
172 &SLAP_SOCK_EP(fd)); \
173 slap_daemon.sd_epolls[index] = slap_daemon.sd_epolls[slap_daemon.sd_nfds-1]; \
174 slap_daemon.sd_index[slap_daemon.sd_epools[index].data.fd] = index; \
175 slap_daemon.sd_index[fd] = -1; \
176 slap_daemon.sd_nfds--; \
179 #define SLAP_SOCK_SET_MUTE(fd) SLAP_SOCK_CLR_READ(fd)
180 #define SLAP_SOCK_CLR_MUTE(fd) SLAP_SOCK_SET_READ(fd)
181 #define SLAP_SOCK_IS_MUTE(fd) !SLAP_SOCK_IS_READ(fd)
183 #define SLAP_SOCK_SET_INIT \
184 slap_daemon.sd_epolls = ch_malloc(sizeof(struct epoll_event) * dtblsize * 2); \
185 slap_daemon.sd_index = ch_malloc(sizeof(int) * dtblsize); \
186 slap_daemon.sd_epfd = epoll_create( dtblsize )
188 #define SLAP_EVENT_DECL \
189 struct epoll_event *revents
191 #define SLAP_EVENT_INIT \
192 revents = slap_daemon.sd_epolls + dtblsize; \
194 #define SLAP_EVENT_WAIT(tvp) \
195 epoll_wait( slap_daemon.sd_epfd, revents, dtblsize, tvp ? tvp->tv_sec * 1000 : -1 )
200 #define SLAP_EVENTS_ARE_INDEXED 1
201 #define SLAP_EVENT_DECL \
202 fd_set readfds, writefds
204 #define SLAP_EVENT_INIT \
205 AC_MEMCPY( &readfds, &slap_daemon.sd_readers, sizeof(fd_set) ); \
207 AC_MEMCPY( &writefds, &slap_daemon.sd_writers, sizeof(fd_set) );
210 #define CHK_SETSIZE \
211 if (dtblsize > FD_SETSIZE) dtblsize = FD_SETSIZE
216 #define SLAP_SOCK_SET_INIT \
218 FD_ZERO(&slap_daemon.sd_readers); \
219 FD_ZERO(&slap_daemon.sd_writers)
221 #define SLAP_SOCK_IS_ACTIVE(fd) FD_ISSET(fd, &slap_daemon.sd_actives)
223 #define SLAP_SOCK_IS_READ(fd) FD_ISSET(fd, &slap_daemon.sd_readers)
224 #define SLAP_SOCK_IS_WRITE(fd) FD_ISSET(fd, &slap_daemon.sd_writers)
226 #define SLAP_SOCK_NOT_ACTIVE(fd) (!SLAP_SOCK_IS_ACTIVE(fd) && \
227 !SLAP_SOCK_IS_READ(fd) && !SLAP_SOCK_IS_WRITE(fd))
230 #define SLAP_SOCK_SET_READ(fd) do { \
231 if (!SLAP_SOCK_IS_READ(fd)) {FD_SET(fd, &slap_daemon.sd_readers);} \
233 #define SLAP_SOCK_SET_WRITE(fd) do { \
234 if (!SLAP_SOCK_IS_WRITE(fd)) {FD_SET(fd, &slap_daemon.sd_writers);} \
237 #define SLAP_ADDTEST(s)
238 #define SLAP_MAXWAIT dtblsize
240 #define SLAP_SOCK_SET_READ(fd) FD_SET(fd, &slap_daemon.sd_readers)
241 #define SLAP_SOCK_SET_WRITE(fd) FD_SET(fd, &slap_daemon.sd_writers)
243 #define SLAP_MAXWAIT slap_daemon.sd_nfds
244 #define SLAP_ADDTEST(s) if (s >= slap_daemon.sd_nfds) slap_daemon.sd_nfds = s+1
247 #define SLAP_SOCK_CLR_READ(fd) FD_CLR(fd, &slap_daemon.sd_readers)
248 #define SLAP_SOCK_CLR_WRITE(fd) FD_CLR(fd, &slap_daemon.sd_writers)
250 #define SLAP_ADD_SOCK(s) do { \
252 FD_SET(s, &slap_daemon.sd_actives); \
253 FD_SET(s, &slap_daemon.sd_readers); \
256 #define SLAP_DEL_SOCK(s) do { \
257 FD_CLR(s, &slap_daemon.sd_actives); \
258 FD_CLR(s, &slap_daemon.sd_readers); \
259 FD_CLR(s, &slap_daemon.sd_writers); \
262 #define SLAP_EVENT_IS_READ(fd) FD_ISSET(fd, &readfds)
263 #define SLAP_EVENT_IS_WRITE(fd) FD_ISSET(fd, &writefds)
265 #define SLAP_EVENT_CLR_READ(fd) FD_CLR(fd, &readfds)
266 #define SLAP_EVENT_CLR_WRITE(fd) FD_CLR(fd, &writefds)
268 #define SLAP_EVENT_WAIT(tvp) \
269 select( SLAP_MAXWAIT, &readfds, \
270 nwriters > 0 ? &writefds : NULL, NULL, tvp )
272 #define SLAP_SOCK_SET_MUTE(s) FD_CLR(s, &readfds)
273 #define SLAP_SOCK_CLR_MUTE(s) FD_SET(s, &readfds)
274 #define SLAP_SOCK_IS_MUTE(s) FD_ISSET(s, &readfds)
281 * SLP related functions
285 #define LDAP_SRVTYPE_PREFIX "service:ldap://"
286 #define LDAPS_SRVTYPE_PREFIX "service:ldaps://"
287 static char** slapd_srvurls = NULL;
288 static SLPHandle slapd_hslp = 0;
289 int slapd_register_slp = 0;
291 void slapd_slp_init( const char* urls ) {
294 slapd_srvurls = ldap_str2charray( urls, " " );
296 if( slapd_srvurls == NULL ) return;
298 /* find and expand INADDR_ANY URLs */
299 for( i=0; slapd_srvurls[i] != NULL; i++ ) {
300 if( strcmp( slapd_srvurls[i], "ldap:///" ) == 0) {
301 char *host = ldap_pvt_get_fqdn( NULL );
302 if ( host != NULL ) {
303 slapd_srvurls[i] = (char *) ch_realloc( slapd_srvurls[i],
305 sizeof( LDAP_SRVTYPE_PREFIX ) );
306 strcpy( lutil_strcopy(slapd_srvurls[i],
307 LDAP_SRVTYPE_PREFIX ), host );
312 } else if ( strcmp( slapd_srvurls[i], "ldaps:///" ) == 0) {
313 char *host = ldap_pvt_get_fqdn( NULL );
314 if ( host != NULL ) {
315 slapd_srvurls[i] = (char *) ch_realloc( slapd_srvurls[i],
317 sizeof( LDAPS_SRVTYPE_PREFIX ) );
318 strcpy( lutil_strcopy(slapd_srvurls[i],
319 LDAPS_SRVTYPE_PREFIX ), host );
326 /* open the SLP handle */
327 SLPOpen( "en", 0, &slapd_hslp );
330 void slapd_slp_deinit() {
331 if( slapd_srvurls == NULL ) return;
333 ldap_charray_free( slapd_srvurls );
334 slapd_srvurls = NULL;
336 /* close the SLP handle */
337 SLPClose( slapd_hslp );
340 void slapd_slp_regreport(
348 void slapd_slp_reg() {
351 if( slapd_srvurls == NULL ) return;
353 for( i=0; slapd_srvurls[i] != NULL; i++ ) {
354 if( strncmp( slapd_srvurls[i], LDAP_SRVTYPE_PREFIX,
355 sizeof( LDAP_SRVTYPE_PREFIX ) - 1 ) == 0 ||
356 strncmp( slapd_srvurls[i], LDAPS_SRVTYPE_PREFIX,
357 sizeof( LDAPS_SRVTYPE_PREFIX ) - 1 ) == 0 )
361 SLP_LIFETIME_MAXIMUM,
371 void slapd_slp_dereg() {
374 if( slapd_srvurls == NULL ) return;
376 for( i=0; slapd_srvurls[i] != NULL; i++ ) {
377 SLPDereg( slapd_hslp,
383 #endif /* HAVE_SLP */
386 * Add a descriptor to daemon control
388 * If isactive, the descriptor is a live server session and is subject
389 * to idletimeout control. Otherwise, the descriptor is a passive
390 * listener or an outbound client session, and not subject to
393 static void slapd_add(ber_socket_t s, int isactive) {
394 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
396 assert( SLAP_SOCK_NOT_ACTIVE(s) );
399 slap_daemon.sd_nactives++;
404 Debug( LDAP_DEBUG_CONNS, "daemon: added %ldr\n",
406 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
410 * Remove the descriptor from daemon control
412 void slapd_remove(ber_socket_t s, int wasactive, int wake) {
414 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
417 slap_daemon.sd_nactives--;
419 waswriter = SLAP_SOCK_IS_WRITE(s);
421 Debug( LDAP_DEBUG_CONNS, "daemon: removing %ld%s%s\n",
423 SLAP_SOCK_IS_READ(s) ? "r" : "",
424 waswriter ? "w" : "" );
425 if ( waswriter ) slap_daemon.sd_nwriters--;
429 /* If we ran out of file descriptors, we dropped a listener from
430 * the select() loop. Now that we're removing a session from our
431 * control, we can try to resume a dropped listener to use.
435 for ( i = 0; slap_listeners[i] != NULL; i++ ) {
436 if ( slap_listeners[i]->sl_sd != AC_SOCKET_INVALID ) {
437 if ( slap_listeners[i]->sl_sd == s ) continue;
438 if ( slap_listeners[i]->sl_is_mute ) {
439 slap_listeners[i]->sl_is_mute = 0;
445 /* Walked the entire list without enabling anything; emfile
446 * counter is stale. Reset it.
448 if ( slap_listeners[i] == NULL )
451 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
452 WAKE_LISTENER(wake || slapd_gentle_shutdown == 2);
455 void slapd_clr_write(ber_socket_t s, int wake) {
456 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
458 assert( SLAP_SOCK_IS_ACTIVE( s ));
459 if ( SLAP_SOCK_IS_WRITE( s )) {
460 SLAP_SOCK_CLR_WRITE( s );
461 slap_daemon.sd_nwriters--;
464 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
468 void slapd_set_write(ber_socket_t s, int wake) {
469 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
471 assert( SLAP_SOCK_IS_ACTIVE( s ));
472 if ( !SLAP_SOCK_IS_WRITE( s )) {
473 SLAP_SOCK_SET_WRITE( s );
474 slap_daemon.sd_nwriters++;
477 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
481 void slapd_clr_read(ber_socket_t s, int wake) {
482 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
484 assert( SLAP_SOCK_IS_ACTIVE( s ));
485 SLAP_SOCK_CLR_READ( s );
487 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
491 void slapd_set_read(ber_socket_t s, int wake) {
492 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
494 assert( SLAP_SOCK_IS_ACTIVE( s ));
495 if (!SLAP_SOCK_IS_READ( s ))
496 SLAP_SOCK_SET_READ( s );
498 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
502 static void slapd_close(ber_socket_t s) {
503 Debug( LDAP_DEBUG_CONNS, "daemon: closing %ld\n",
508 static void slap_free_listener_addresses(struct sockaddr **sal)
510 struct sockaddr **sap;
516 for (sap = sal; *sap != NULL; sap++) {
523 #if defined(LDAP_PF_LOCAL) || defined(SLAP_X_LISTENER_MOD)
524 static int get_url_perms(
536 for ( i = 0; exts[ i ]; i++ ) {
537 char *type = exts[ i ];
540 if ( type[ 0 ] == '!' ) {
545 if ( strncasecmp( type, LDAPI_MOD_URLEXT "=", sizeof(LDAPI_MOD_URLEXT "=") - 1 ) == 0 ) {
547 + ( sizeof(LDAPI_MOD_URLEXT "=") - 1 );
551 switch (strlen(value)) {
553 /* skip leading '0' */
554 if ( value[ 0 ] != '0' ) {
560 for ( j = 0; j < 3; j++) {
563 v = value[ j ] - '0';
565 if ( v < 0 || v > 7 ) {
574 for ( j = 1; j < 10; j++ ) {
575 static mode_t m[] = { 0,
576 S_IRUSR, S_IWUSR, S_IXUSR,
577 S_IRGRP, S_IWGRP, S_IXGRP,
578 S_IROTH, S_IWOTH, S_IXOTH
580 static char c[] = "-rwxrwxrwx";
582 if ( value[ j ] == c[ j ] ) {
585 } else if ( value[ j ] != '-' ) {
604 #endif /* LDAP_PF_LOCAL || SLAP_X_LISTENER_MOD */
606 /* port = 0 indicates AF_LOCAL */
607 static int slap_get_listener_addresses(
610 struct sockaddr ***sal)
612 struct sockaddr **sap;
616 *sal = ch_malloc(2 * sizeof(void *));
622 *sap = ch_malloc(sizeof(struct sockaddr_un));
628 (sizeof(((struct sockaddr_un *)*sap)->sun_path) - 1) ) {
629 Debug( LDAP_DEBUG_ANY,
630 "daemon: domain socket path (%s) too long in URL",
635 (void)memset( (void *)*sap, '\0', sizeof(struct sockaddr_un) );
636 (*sap)->sa_family = AF_LOCAL;
637 strcpy( ((struct sockaddr_un *)*sap)->sun_path, host );
641 #ifdef HAVE_GETADDRINFO
642 struct addrinfo hints, *res, *sai;
646 memset( &hints, '\0', sizeof(hints) );
647 hints.ai_flags = AI_PASSIVE;
648 hints.ai_socktype = SOCK_STREAM;
649 hints.ai_family = slap_inet4or6;
650 snprintf(serv, sizeof serv, "%d", port);
652 if ( (err = getaddrinfo(host, serv, &hints, &res)) ) {
653 Debug( LDAP_DEBUG_ANY, "daemon: getaddrinfo failed: %s\n",
654 AC_GAI_STRERROR(err), 0, 0);
659 for (n=2; (sai = sai->ai_next) != NULL; n++) {
662 *sal = ch_calloc(n, sizeof(void *));
670 for ( sai=res; sai; sai=sai->ai_next ) {
671 if( sai->ai_addr == NULL ) {
672 Debug( LDAP_DEBUG_ANY, "slap_get_listener_addresses: "
673 "getaddrinfo ai_addr is NULL?\n", 0, 0, 0 );
678 switch (sai->ai_family) {
679 # ifdef LDAP_PF_INET6
681 *sap = ch_malloc(sizeof(struct sockaddr_in6));
686 *(struct sockaddr_in6 *)*sap =
687 *((struct sockaddr_in6 *)sai->ai_addr);
691 *sap = ch_malloc(sizeof(struct sockaddr_in));
696 *(struct sockaddr_in *)*sap =
697 *((struct sockaddr_in *)sai->ai_addr);
705 (*sap)->sa_family = sai->ai_family;
715 struct hostent *he = NULL;
717 if ( host == NULL ) {
718 in.s_addr = htonl(INADDR_ANY);
720 } else if ( !inet_aton( host, &in ) ) {
721 he = gethostbyname( host );
723 Debug( LDAP_DEBUG_ANY,
724 "daemon: invalid host %s", host, 0, 0);
727 for (n = 0; he->h_addr_list[n]; n++) ;
730 *sal = ch_malloc((n+1) * sizeof(void *));
736 for ( i = 0; i<n; i++ ) {
737 sap[i] = ch_malloc(sizeof(struct sockaddr_in));
741 (void)memset( (void *)sap[i], '\0', sizeof(struct sockaddr_in) );
742 sap[i]->sa_family = AF_INET;
743 ((struct sockaddr_in *)sap[i])->sin_port = htons(port);
745 AC_MEMCPY( &((struct sockaddr_in *)sap[i])->sin_addr, he->h_addr_list[i], sizeof(struct in_addr) );
747 AC_MEMCPY( &((struct sockaddr_in *)sap[i])->sin_addr, &in, sizeof(struct in_addr) );
757 slap_free_listener_addresses(*sal);
761 static int slap_open_listener(
772 int err, addrlen = 0;
773 struct sockaddr **sal, **psal;
774 int socktype = SOCK_STREAM; /* default to COTS */
776 #if defined(LDAP_PF_LOCAL) || defined(SLAP_X_LISTENER_MOD)
781 #endif /* LDAP_PF_LOCAL || SLAP_X_LISTENER_MOD */
783 rc = ldap_url_parse( url, &lud );
785 if( rc != LDAP_URL_SUCCESS ) {
786 Debug( LDAP_DEBUG_ANY,
787 "daemon: listen URL \"%s\" parse error=%d\n",
792 l.sl_url.bv_val = NULL;
796 if( ldap_pvt_url_scheme2tls( lud->lud_scheme ) ) {
797 Debug( LDAP_DEBUG_ANY,
798 "daemon: TLS not supported (%s)\n",
800 ldap_free_urldesc( lud );
804 if(! lud->lud_port ) {
805 lud->lud_port = LDAP_PORT;
809 l.sl_is_tls = ldap_pvt_url_scheme2tls( lud->lud_scheme );
811 if(! lud->lud_port ) {
812 lud->lud_port = l.sl_is_tls ? LDAPS_PORT : LDAP_PORT;
816 port = (unsigned short) lud->lud_port;
818 tmp = ldap_pvt_url_scheme2proto(lud->lud_scheme);
819 if ( tmp == LDAP_PROTO_IPC ) {
821 if ( lud->lud_host == NULL || lud->lud_host[0] == '\0' ) {
822 err = slap_get_listener_addresses(LDAPI_SOCK, 0, &sal);
824 err = slap_get_listener_addresses(lud->lud_host, 0, &sal);
828 Debug( LDAP_DEBUG_ANY, "daemon: URL scheme not supported: %s",
830 ldap_free_urldesc( lud );
834 if( lud->lud_host == NULL || lud->lud_host[0] == '\0'
835 || strcmp(lud->lud_host, "*") == 0 )
837 err = slap_get_listener_addresses(NULL, port, &sal);
839 err = slap_get_listener_addresses(lud->lud_host, port, &sal);
842 #ifdef LDAP_CONNECTIONLESS
843 l.sl_is_udp = ( tmp == LDAP_PROTO_UDP );
846 #if defined(LDAP_PF_LOCAL) || defined(SLAP_X_LISTENER_MOD)
847 if ( lud->lud_exts ) {
848 err = get_url_perms( lud->lud_exts, &l.sl_perms, &crit );
850 l.sl_perms = S_IRWXU | S_IRWXO;
852 #endif /* LDAP_PF_LOCAL || SLAP_X_LISTENER_MOD */
854 ldap_free_urldesc( lud );
859 /* If we got more than one address returned, we need to make space
860 * for it in the slap_listeners array.
862 for ( num=0; sal[num]; num++ );
865 slap_listeners = ch_realloc( slap_listeners, (*listeners + 1) * sizeof(Listener *) );
869 while ( *sal != NULL ) {
871 switch( (*sal)->sa_family ) {
889 #ifdef LDAP_CONNECTIONLESS
890 if( l.sl_is_udp ) socktype = SOCK_DGRAM;
892 l.sl_sd = socket( (*sal)->sa_family, socktype, 0);
893 if ( l.sl_sd == AC_SOCKET_INVALID ) {
894 int err = sock_errno();
895 Debug( LDAP_DEBUG_ANY,
896 "daemon: %s socket() failed errno=%d (%s)\n",
897 af, err, sock_errstr(err) );
902 if ( l.sl_sd >= dtblsize ) {
903 Debug( LDAP_DEBUG_ANY,
904 "daemon: listener descriptor %ld is too great %ld\n",
905 (long) l.sl_sd, (long) dtblsize, 0 );
906 tcp_close( l.sl_sd );
912 if ( (*sal)->sa_family == AF_LOCAL ) {
913 unlink ( ((struct sockaddr_un *)*sal)->sun_path );
918 /* enable address reuse */
920 rc = setsockopt( l.sl_sd, SOL_SOCKET, SO_REUSEADDR,
921 (char *) &tmp, sizeof(tmp) );
922 if ( rc == AC_SOCKET_ERROR ) {
923 int err = sock_errno();
924 Debug( LDAP_DEBUG_ANY,
925 "slapd(%ld): setsockopt(SO_REUSEADDR) failed errno=%d (%s)\n",
926 (long) l.sl_sd, err, sock_errstr(err) );
931 switch( (*sal)->sa_family ) {
933 addrlen = sizeof(struct sockaddr_in);
938 /* Try to use IPv6 sockets for IPv6 only */
940 rc = setsockopt( l.sl_sd, IPPROTO_IPV6, IPV6_V6ONLY,
941 (char *) &tmp, sizeof(tmp) );
942 if ( rc == AC_SOCKET_ERROR ) {
943 int err = sock_errno();
944 Debug( LDAP_DEBUG_ANY,
945 "slapd(%ld): setsockopt(IPV6_V6ONLY) failed errno=%d (%s)\n",
946 (long) l.sl_sd, err, sock_errstr(err) );
949 addrlen = sizeof(struct sockaddr_in6);
954 addrlen = sizeof(struct sockaddr_un);
959 if (bind(l.sl_sd, *sal, addrlen)) {
961 Debug( LDAP_DEBUG_ANY, "daemon: bind(%ld) failed errno=%d (%s)\n",
962 (long) l.sl_sd, err, sock_errstr(err) );
963 tcp_close( l.sl_sd );
968 switch ( (*sal)->sa_family ) {
971 char *addr = ((struct sockaddr_un *)*sal)->sun_path;
972 #if 0 /* don't muck with socket perms */
973 if ( chmod( addr, l.sl_perms ) < 0 && crit ) {
974 int err = sock_errno();
975 Debug( LDAP_DEBUG_ANY, "daemon: fchmod(%ld) failed errno=%d (%s)",
976 (long) l.sl_sd, err, sock_errstr(err) );
977 tcp_close( l.sl_sd );
978 slap_free_listener_addresses(psal);
982 l.sl_name.bv_len = strlen(addr) + sizeof("PATH=") - 1;
983 l.sl_name.bv_val = ber_memalloc( l.sl_name.bv_len + 1 );
984 snprintf( l.sl_name.bv_val, l.sl_name.bv_len + 1,
987 #endif /* LDAP_PF_LOCAL */
991 #if defined( HAVE_GETADDRINFO ) && defined( HAVE_INET_NTOP )
992 char addr[INET_ADDRSTRLEN];
993 inet_ntop( AF_INET, &((struct sockaddr_in *)*sal)->sin_addr,
994 addr, sizeof(addr) );
997 s = inet_ntoa( ((struct sockaddr_in *) *sal)->sin_addr );
999 port = ntohs( ((struct sockaddr_in *)*sal) ->sin_port );
1000 l.sl_name.bv_val = ber_memalloc( sizeof("IP=255.255.255.255:65535") );
1001 snprintf( l.sl_name.bv_val, sizeof("IP=255.255.255.255:65535"),
1003 s != NULL ? s : SLAP_STRING_UNKNOWN, port );
1004 l.sl_name.bv_len = strlen( l.sl_name.bv_val );
1007 #ifdef LDAP_PF_INET6
1009 char addr[INET6_ADDRSTRLEN];
1010 inet_ntop( AF_INET6, &((struct sockaddr_in6 *)*sal)->sin6_addr,
1012 port = ntohs( ((struct sockaddr_in6 *)*sal)->sin6_port );
1013 l.sl_name.bv_len = strlen(addr) + sizeof("IP= 65535");
1014 l.sl_name.bv_val = ber_memalloc( l.sl_name.bv_len );
1015 snprintf( l.sl_name.bv_val, l.sl_name.bv_len, "IP=%s %d",
1017 l.sl_name.bv_len = strlen( l.sl_name.bv_val );
1019 #endif /* LDAP_PF_INET6 */
1022 Debug( LDAP_DEBUG_ANY, "daemon: unsupported address family (%d)\n",
1023 (int) (*sal)->sa_family, 0, 0 );
1027 AC_MEMCPY(&l.sl_sa, *sal, addrlen);
1028 ber_str2bv( url, 0, 1, &l.sl_url);
1029 li = ch_malloc( sizeof( Listener ) );
1031 slap_listeners[*cur] = li;
1035 } /* while ( *sal != NULL ) */
1037 slap_free_listener_addresses(psal);
1039 if ( l.sl_url.bv_val == NULL )
1041 Debug( LDAP_DEBUG_TRACE,
1042 "slap_open_listener: failed on %s\n", url, 0, 0 );
1046 Debug( LDAP_DEBUG_TRACE, "daemon: initialized %s\n",
1047 l.sl_url.bv_val, 0, 0 );
1051 static int sockinit(void);
1052 static int sockdestroy(void);
1054 int slapd_daemon_init( const char *urls )
1059 Debug( LDAP_DEBUG_ARGS, "daemon_init: %s\n",
1060 urls ? urls : "<null>", 0, 0 );
1061 if( (rc = sockinit()) != 0 ) {
1066 dtblsize = sysconf( _SC_OPEN_MAX );
1067 #elif HAVE_GETDTABLESIZE
1068 dtblsize = getdtablesize();
1070 dtblsize = FD_SETSIZE;
1073 /* open a pipe (or something equivalent connected to itself).
1074 * we write a byte on this fd whenever we catch a signal. The main
1075 * loop will be select'ing on this socket, and will wake up when
1076 * this byte arrives.
1078 if( (rc = lutil_pair( wake_sds )) < 0 ) {
1079 Debug( LDAP_DEBUG_ANY,
1080 "daemon: lutil_pair() failed rc=%d\n", rc, 0, 0 );
1086 if( urls == NULL ) {
1090 u = ldap_str2charray( urls, " " );
1092 if( u == NULL || u[0] == NULL ) {
1093 Debug( LDAP_DEBUG_ANY, "daemon_init: no urls (%s) provided.\n",
1098 for( i=0; u[i] != NULL; i++ ) {
1099 Debug( LDAP_DEBUG_TRACE, "daemon_init: listen on %s\n",
1104 Debug( LDAP_DEBUG_ANY, "daemon_init: no listeners to open (%s)\n",
1106 ldap_charray_free( u );
1110 Debug( LDAP_DEBUG_TRACE, "daemon_init: %d listeners to open...\n",
1112 slap_listeners = ch_malloc( (i+1)*sizeof(Listener *) );
1114 for(n = 0, j = 0; u[n]; n++ ) {
1115 if ( slap_open_listener( u[n], &i, &j ) ) {
1116 ldap_charray_free( u );
1120 slap_listeners[j] = NULL;
1122 Debug( LDAP_DEBUG_TRACE, "daemon_init: %d listeners opened\n",
1126 if( slapd_register_slp ) {
1127 slapd_slp_init( urls );
1132 ldap_charray_free( u );
1133 ldap_pvt_thread_mutex_init( &slap_daemon.sd_mutex );
1139 slapd_daemon_destroy(void)
1141 connections_destroy();
1142 tcp_close( wake_sds[1] );
1143 tcp_close( wake_sds[0] );
1147 if( slapd_register_slp ) {
1164 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1165 if ( slap_listeners[l]->sl_sd != AC_SOCKET_INVALID ) {
1167 slapd_remove( slap_listeners[l]->sl_sd, 0, 0 );
1168 #ifdef LDAP_PF_LOCAL
1169 if ( slap_listeners[l]->sl_sa.sa_addr.sa_family == AF_LOCAL ) {
1170 unlink( slap_listeners[l]->sl_sa.sa_un_addr.sun_path );
1172 #endif /* LDAP_PF_LOCAL */
1173 slapd_close( slap_listeners[l]->sl_sd );
1175 if ( slap_listeners[l]->sl_url.bv_val )
1176 ber_memfree( slap_listeners[l]->sl_url.bv_val );
1177 if ( slap_listeners[l]->sl_name.bv_val )
1178 ber_memfree( slap_listeners[l]->sl_name.bv_val );
1179 free ( slap_listeners[l] );
1180 slap_listeners[l] = NULL;
1185 slapd_handle_listener(
1192 socklen_t len = sizeof(from);
1195 struct berval authid = BER_BVNULL;
1196 #ifdef SLAPD_RLOOKUPS
1197 char hbuf[NI_MAXHOST];
1200 char *dnsname = NULL;
1201 char *peeraddr = NULL;
1202 #ifdef LDAP_PF_LOCAL
1203 char peername[MAXPATHLEN + sizeof("PATH=")];
1204 #elif defined(LDAP_PF_INET6)
1205 char peername[sizeof("IP=ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff 65535")];
1207 char peername[sizeof("IP=255.255.255.255:65336")];
1208 #endif /* LDAP_PF_LOCAL */
1212 #ifdef LDAP_CONNECTIONLESS
1213 if ( sl->sl_is_udp ) {
1214 /* The first time we receive a query, we set this
1215 * up as a "connection". It remains open for the life
1218 if ( sl->sl_is_udp < 2 ) {
1219 id = connection_init( sl->sl_sd, sl, "", "",
1220 CONN_IS_UDP, ssf, NULL );
1227 # ifdef LDAP_PF_LOCAL
1228 /* FIXME: apparently accept doesn't fill
1229 * the sun_path sun_path member */
1230 from.sa_un_addr.sun_path[0] = '\0';
1231 # endif /* LDAP_PF_LOCAL */
1233 s = accept( sl->sl_sd, (struct sockaddr *) &from, &len );
1234 if ( s == AC_SOCKET_INVALID ) {
1235 int err = sock_errno();
1246 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
1248 /* Stop listening until an existing session closes */
1250 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
1253 Debug( LDAP_DEBUG_ANY,
1254 "daemon: accept(%ld) failed errno=%d (%s)\n",
1255 (long) sl->sl_sd, err,
1257 ldap_pvt_thread_yield();
1261 #ifndef HAVE_WINSOCK
1262 /* make sure descriptor number isn't too great */
1263 if ( s >= dtblsize ) {
1264 Debug( LDAP_DEBUG_ANY,
1265 "daemon: %ld beyond descriptor table size %ld\n",
1266 (long) s, (long) dtblsize, 0 );
1269 ldap_pvt_thread_yield();
1275 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
1277 /* newly accepted stream should not be in any of the FD SETS */
1278 assert( SLAP_SOCK_NOT_ACTIVE( s ));
1280 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
1283 #if defined( SO_KEEPALIVE ) || defined( TCP_NODELAY )
1284 #ifdef LDAP_PF_LOCAL
1285 /* for IPv4 and IPv6 sockets only */
1286 if ( from.sa_addr.sa_family != AF_LOCAL )
1287 #endif /* LDAP_PF_LOCAL */
1292 /* enable keep alives */
1294 rc = setsockopt( s, SOL_SOCKET, SO_KEEPALIVE,
1295 (char *) &tmp, sizeof(tmp) );
1296 if ( rc == AC_SOCKET_ERROR ) {
1297 int err = sock_errno();
1298 Debug( LDAP_DEBUG_ANY,
1299 "slapd(%ld): setsockopt(SO_KEEPALIVE) failed "
1300 "errno=%d (%s)\n", (long) s, err, sock_errstr(err) );
1304 /* enable no delay */
1306 rc = setsockopt( s, IPPROTO_TCP, TCP_NODELAY,
1307 (char *)&tmp, sizeof(tmp) );
1308 if ( rc == AC_SOCKET_ERROR ) {
1309 int err = sock_errno();
1310 Debug( LDAP_DEBUG_ANY,
1311 "slapd(%ld): setsockopt(TCP_NODELAY) failed "
1312 "errno=%d (%s)\n", (long) s, err, sock_errstr(err) );
1318 Debug( LDAP_DEBUG_CONNS, "daemon: new connection on %ld\n",
1320 switch ( from.sa_addr.sa_family ) {
1321 # ifdef LDAP_PF_LOCAL
1323 /* FIXME: apparently accept doesn't fill
1324 * the sun_path sun_path member */
1325 if ( from.sa_un_addr.sun_path[0] == '\0' ) {
1326 AC_MEMCPY( from.sa_un_addr.sun_path,
1327 sl->sl_sa.sa_un_addr.sun_path,
1328 sizeof( from.sa_un_addr.sun_path ) );
1331 sprintf( peername, "PATH=%s", from.sa_un_addr.sun_path );
1337 if( getpeereid( s, &uid, &gid ) == 0 ) {
1338 authid.bv_val = ch_malloc(
1339 sizeof("uidnumber=4294967295+gidnumber=4294967295,"
1340 "cn=peercred,cn=external,cn=auth"));
1341 authid.bv_len = sprintf( authid.bv_val,
1342 "uidnumber=%d+gidnumber=%d,"
1343 "cn=peercred,cn=external,cn=auth",
1344 (int) uid, (int) gid);
1349 #endif /* LDAP_PF_LOCAL */
1351 # ifdef LDAP_PF_INET6
1353 if ( IN6_IS_ADDR_V4MAPPED(&from.sa_in6_addr.sin6_addr) ) {
1354 peeraddr = inet_ntoa( *((struct in_addr *)
1355 &from.sa_in6_addr.sin6_addr.s6_addr[12]) );
1356 sprintf( peername, "IP=%s:%d",
1357 peeraddr != NULL ? peeraddr : SLAP_STRING_UNKNOWN,
1358 (unsigned) ntohs( from.sa_in6_addr.sin6_port ) );
1360 char addr[INET6_ADDRSTRLEN];
1362 peeraddr = (char *) inet_ntop( AF_INET6,
1363 &from.sa_in6_addr.sin6_addr,
1364 addr, sizeof addr );
1365 sprintf( peername, "IP=%s %d",
1366 peeraddr != NULL ? peeraddr : SLAP_STRING_UNKNOWN,
1367 (unsigned) ntohs( from.sa_in6_addr.sin6_port ) );
1370 # endif /* LDAP_PF_INET6 */
1373 peeraddr = inet_ntoa( from.sa_in_addr.sin_addr );
1374 sprintf( peername, "IP=%s:%d",
1375 peeraddr != NULL ? peeraddr : SLAP_STRING_UNKNOWN,
1376 (unsigned) ntohs( from.sa_in_addr.sin_port ) );
1384 if ( ( from.sa_addr.sa_family == AF_INET )
1385 #ifdef LDAP_PF_INET6
1386 || ( from.sa_addr.sa_family == AF_INET6 )
1389 #ifdef SLAPD_RLOOKUPS
1390 if ( use_reverse_lookup ) {
1392 if (ldap_pvt_get_hname( (const struct sockaddr *)&from, len, hbuf,
1393 sizeof(hbuf), &herr ) == 0) {
1394 ldap_pvt_str2lower( hbuf );
1400 #endif /* SLAPD_RLOOKUPS */
1403 if ( !hosts_ctl("slapd",
1404 dnsname != NULL ? dnsname : SLAP_STRING_UNKNOWN,
1405 peeraddr != NULL ? peeraddr : SLAP_STRING_UNKNOWN,
1406 SLAP_STRING_UNKNOWN ))
1409 Statslog( LDAP_DEBUG_STATS,
1410 "fd=%ld DENIED from %s (%s)\n",
1412 dnsname != NULL ? dnsname : SLAP_STRING_UNKNOWN,
1413 peeraddr != NULL ? peeraddr : SLAP_STRING_UNKNOWN,
1418 #endif /* HAVE_TCPD */
1421 id = connection_init(s, sl,
1422 dnsname != NULL ? dnsname : SLAP_STRING_UNKNOWN,
1425 sl->sl_is_tls ? CONN_IS_TLS : 0,
1430 authid.bv_val ? &authid : NULL );
1432 if( authid.bv_val ) ch_free(authid.bv_val);
1435 Debug( LDAP_DEBUG_ANY,
1436 "daemon: connection_init(%ld, %s, %s) failed.\n",
1437 (long) s, peername, sl->sl_name.bv_val );
1442 Statslog( LDAP_DEBUG_STATS,
1443 "conn=%ld fd=%ld ACCEPT from %s (%s)\n",
1444 id, (long) s, peername, sl->sl_name.bv_val,
1457 time_t last_idle_check = 0;
1458 struct timeval idle;
1460 #define SLAPD_IDLE_CHECK_LIMIT 4
1462 if ( global_idletimeout > 0 ) {
1463 last_idle_check = slap_get_time();
1464 /* Set the select timeout.
1465 * Don't just truncate, preserve the fractions of
1466 * seconds to prevent sleeping for zero time.
1468 idle.tv_sec = global_idletimeout/SLAPD_IDLE_CHECK_LIMIT;
1469 idle.tv_usec = global_idletimeout - idle.tv_sec * SLAPD_IDLE_CHECK_LIMIT;
1470 idle.tv_usec *= 1000000 / SLAPD_IDLE_CHECK_LIMIT;
1476 slapd_add( wake_sds[0], 0 );
1478 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1479 if ( slap_listeners[l]->sl_sd == AC_SOCKET_INVALID )
1481 #ifdef LDAP_CONNECTIONLESS
1482 /* Since this is connectionless, the data port is the
1483 * listening port. The listen() and accept() calls
1486 if ( slap_listeners[l]->sl_is_udp ) {
1487 slapd_add( slap_listeners[l]->sl_sd, 1 );
1492 if ( listen( slap_listeners[l]->sl_sd, SLAPD_LISTEN ) == -1 ) {
1493 int err = sock_errno();
1495 #ifdef LDAP_PF_INET6
1496 /* If error is EADDRINUSE, we are trying to listen to INADDR_ANY and
1497 * we are already listening to in6addr_any, then we want to ignore
1498 * this and continue.
1500 if ( err == EADDRINUSE ) {
1502 struct sockaddr_in sa = slap_listeners[l]->sl_sa.sa_in_addr;
1503 struct sockaddr_in6 sa6;
1505 if ( sa.sin_family == AF_INET &&
1506 sa.sin_addr.s_addr == htonl(INADDR_ANY) ) {
1507 for ( i = 0 ; i < l; i++ ) {
1508 sa6 = slap_listeners[i]->sl_sa.sa_in6_addr;
1509 if ( sa6.sin6_family == AF_INET6 &&
1510 !memcmp( &sa6.sin6_addr, &in6addr_any, sizeof(struct in6_addr) ) )
1515 /* We are already listening to in6addr_any */
1516 Debug( LDAP_DEBUG_CONNS,
1517 "daemon: Attempt to listen to 0.0.0.0 failed, already listening on ::, assuming IPv4 included\n",
1519 slapd_close( slap_listeners[l]->sl_sd );
1520 slap_listeners[l]->sl_sd = AC_SOCKET_INVALID;
1526 Debug( LDAP_DEBUG_ANY,
1527 "daemon: listen(%s, 5) failed errno=%d (%s)\n",
1528 slap_listeners[l]->sl_url.bv_val, err,
1530 return( (void*)-1 );
1533 slapd_add( slap_listeners[l]->sl_sd, 0 );
1536 #ifdef HAVE_NT_SERVICE_MANAGER
1537 if ( started_event != NULL ) {
1538 ldap_pvt_thread_cond_signal( &started_event );
1541 /* initialization complete. Here comes the loop. */
1543 while ( !slapd_shutdown ) {
1547 ber_socket_t nfds, nrfds, nwfds;
1548 #define SLAPD_EBADF_LIMIT 16
1556 struct timeval *tvp;
1558 struct timeval *cat;
1561 now = slap_get_time();
1563 if( ( global_idletimeout > 0 ) &&
1564 difftime( last_idle_check +
1565 global_idletimeout/SLAPD_IDLE_CHECK_LIMIT, now ) < 0 ) {
1566 connections_timeout_idle( now );
1567 last_idle_check = now;
1572 if( slapd_gentle_shutdown ) {
1573 ber_socket_t active;
1575 if( slapd_gentle_shutdown == 1 ) {
1576 Debug( LDAP_DEBUG_ANY, "slapd gentle shutdown\n", 0, 0, 0 );
1577 close_listeners( 1 );
1578 frontendDB->be_restrictops |= SLAP_RESTRICT_OP_WRITES;
1579 slapd_gentle_shutdown = 2;
1582 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
1583 active = slap_daemon.sd_nactives;
1584 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
1594 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
1596 nwriters = slap_daemon.sd_nwriters;
1599 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1600 if ( slap_listeners[l]->sl_sd == AC_SOCKET_INVALID )
1602 if ( slap_listeners[l]->sl_is_mute )
1603 SLAP_SOCK_SET_MUTE( slap_listeners[l]->sl_sd );
1605 if ( SLAP_SOCK_IS_MUTE( slap_listeners[l]->sl_sd ))
1606 SLAP_SOCK_CLR_MUTE( slap_listeners[l]->sl_sd );
1609 nfds = SLAP_MAXWAIT;
1611 if ( global_idletimeout && slap_daemon.sd_nactives )
1614 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
1617 #if defined(HAVE_YIELDING_SELECT) || defined(NO_THREADS)
1618 && ( tv.tv_sec || tv.tv_usec )
1625 ldap_pvt_thread_mutex_lock( &syncrepl_rq.rq_mutex );
1626 rtask = ldap_pvt_runqueue_next_sched( &syncrepl_rq, &cat );
1627 while ( cat && cat->tv_sec && cat->tv_sec <= now ) {
1628 if ( ldap_pvt_runqueue_isrunning( &syncrepl_rq, rtask )) {
1629 ldap_pvt_runqueue_resched( &syncrepl_rq, rtask, 0 );
1631 ldap_pvt_runqueue_runtask( &syncrepl_rq, rtask );
1632 ldap_pvt_runqueue_resched( &syncrepl_rq, rtask, 0 );
1633 ldap_pvt_thread_mutex_unlock( &syncrepl_rq.rq_mutex );
1634 ldap_pvt_thread_pool_submit( &connection_pool,
1635 rtask->routine, (void *) rtask );
1636 ldap_pvt_thread_mutex_lock( &syncrepl_rq.rq_mutex );
1638 rtask = ldap_pvt_runqueue_next_sched( &syncrepl_rq, &cat );
1640 ldap_pvt_thread_mutex_unlock( &syncrepl_rq.rq_mutex );
1642 if ( cat != NULL ) {
1643 time_t diff = difftime( cat->tv_sec, now );
1646 if ( tvp == NULL || diff < tv.tv_sec ) {
1653 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1654 if ( slap_listeners[l]->sl_sd == AC_SOCKET_INVALID ||
1655 slap_listeners[l]->sl_is_mute )
1658 Debug( LDAP_DEBUG_CONNS,
1659 "daemon: select: listen=%d active_threads=%d tvp=%s\n",
1660 slap_listeners[l]->sl_sd, at,
1661 tvp == NULL ? "NULL" : "zero" );
1664 switch(ns = SLAP_EVENT_WAIT(tvp))
1666 case -1: { /* failure - try again */
1667 int err = sock_errno();
1671 /* you'd think this would be EBADF */
1672 || err == WSAENOTSOCK
1675 if (++ebadf < SLAPD_EBADF_LIMIT)
1679 if( err != EINTR ) {
1680 Debug( LDAP_DEBUG_CONNS,
1681 "daemon: select failed (%d): %s\n",
1682 err, sock_errstr(err), 0 );
1688 case 0: /* timeout - let threads run */
1690 Debug( LDAP_DEBUG_CONNS, "daemon: select timeout - yielding\n",
1693 ldap_pvt_thread_yield();
1696 default: /* something happened - deal with it */
1697 if( slapd_shutdown ) continue;
1700 Debug( LDAP_DEBUG_CONNS, "daemon: activity on %d descriptors\n",
1705 /* We don't need to examine the event status for wake_sds;
1706 * if waking is set and we woke up, we'll read whatever
1711 tcp_read( wake_sds[0], c, sizeof(c) );
1717 #if SLAP_EVENTS_ARE_INDEXED
1718 /* The event slot equals the descriptor number - this is
1719 * true for Unix select and poll. We treat Windows select
1720 * like this too, even though it's a kludge.
1722 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1725 if ( ns <= 0 ) break;
1727 if ( slap_listeners[l]->sl_sd == AC_SOCKET_INVALID )
1730 if ( !SLAP_EVENT_IS_READ( slap_listeners[l]->sl_sd ))
1735 rc = slapd_handle_listener(slap_listeners[l]);
1737 #ifdef LDAP_CONNECTIONLESS
1741 /* Don't need to look at this in the data loops */
1742 SLAP_EVENT_CLR_READ( slap_listeners[l]->sl_sd );
1743 SLAP_EVENT_CLR_WRITE( slap_listeners[l]->sl_sd );
1746 /* bypass the following tests if no descriptors left */
1748 ldap_pvt_thread_yield();
1752 Debug( LDAP_DEBUG_CONNS, "daemon: activity on:", 0, 0, 0 );
1754 nrfds = readfds.fd_count;
1755 nwfds = writefds.fd_count;
1756 for ( i = 0; i < readfds.fd_count; i++ ) {
1757 Debug( LDAP_DEBUG_CONNS, " %d%s",
1758 readfds.fd_array[i], "r", 0 );
1760 for ( i = 0; i < writefds.fd_count; i++ ) {
1761 Debug( LDAP_DEBUG_CONNS, " %d%s",
1762 writefds.fd_array[i], "w", 0 );
1768 for ( i = 0; i < nfds; i++ ) {
1771 r = SLAP_EVENT_IS_READ( i );
1772 w = SLAP_EVENT_IS_WRITE( i );
1774 Debug( LDAP_DEBUG_CONNS, " %d%s%s", i,
1775 r ? "r" : "", w ? "w" : "" );
1785 if ( ns <= 0 ) break;
1788 Debug( LDAP_DEBUG_CONNS, "\n", 0, 0, 0 );
1791 /* loop through the writers */
1792 for ( i = 0; nwfds > 0; i++ )
1796 wd = writefds.fd_array[i];
1798 if( ! SLAP_EVENT_IS_WRITE( i ) ) {
1805 Debug( LDAP_DEBUG_CONNS,
1806 "daemon: write active on %d\n",
1809 * NOTE: it is possible that the connection was closed
1810 * and that the stream is now inactive.
1811 * connection_write() must valid the stream is still
1815 if ( connection_write( wd ) < 0 ) {
1816 if ( SLAP_EVENT_IS_READ( wd )) {
1817 SLAP_EVENT_CLR_READ( (unsigned) wd );
1824 for ( i = 0; nrfds > 0; i++ )
1828 rd = readfds.fd_array[i];
1830 if( ! SLAP_EVENT_IS_READ( i ) ) {
1837 Debug ( LDAP_DEBUG_CONNS,
1838 "daemon: read activity on %d\n", rd, 0, 0 );
1840 * NOTE: it is possible that the connection was closed
1841 * and that the stream is now inactive.
1842 * connection_read() must valid the stream is still
1846 if ( connection_read( rd ) < 0 ) {
1850 #else /* !SLAP_EVENTS_ARE_INDEXED */
1852 /* The events are returned in an arbitrary list. This is true
1853 * for /dev/poll, epoll and kqueue. In order to prioritize things
1854 * so that we can handle wake_sds first, listeners second, and then
1855 * all other connections last (as we do for select), we would need
1856 * to use multiple event handles and cascade them.
1858 * That seems like a bit of hassle. So the wake_sds check has moved
1859 * above. For epoll and kqueue we can associate arbitrary data with
1860 * an event, so we could use pointers to the listener structure
1861 * instead of just the file descriptor. For /dev/poll we have to
1862 * search the listeners array for a matching descriptor.
1865 ldap_pvt_thread_yield();
1868 if( slapd_shutdown == 1 ) {
1869 Debug( LDAP_DEBUG_TRACE,
1870 "daemon: shutdown requested and initiated.\n",
1873 } else if ( slapd_shutdown == 2 ) {
1874 #ifdef HAVE_NT_SERVICE_MANAGER
1875 Debug( LDAP_DEBUG_TRACE,
1876 "daemon: shutdown initiated by Service Manager.\n",
1878 #else /* !HAVE_NT_SERVICE_MANAGER */
1879 Debug( LDAP_DEBUG_TRACE,
1880 "daemon: abnormal condition, shutdown initiated.\n",
1882 #endif /* !HAVE_NT_SERVICE_MANAGER */
1884 Debug( LDAP_DEBUG_TRACE,
1885 "daemon: no active streams, shutdown initiated.\n",
1889 if( slapd_gentle_shutdown != 2 ) {
1890 close_listeners ( 0 );
1893 free ( slap_listeners );
1894 slap_listeners = NULL;
1896 if( !slapd_gentle_shutdown ) {
1897 slapd_abrupt_shutdown = 1;
1898 connections_shutdown();
1901 Debug( LDAP_DEBUG_ANY,
1902 "slapd shutdown: waiting for %d threads to terminate\n",
1903 ldap_pvt_thread_pool_backload(&connection_pool), 0, 0 );
1904 ldap_pvt_thread_pool_destroy(&connection_pool, 1);
1910 int slapd_daemon( void )
1916 #define SLAPD_LISTENER_THREAD 1
1917 #if defined( SLAPD_LISTENER_THREAD )
1919 ldap_pvt_thread_t listener_tid;
1921 /* listener as a separate THREAD */
1922 rc = ldap_pvt_thread_create( &listener_tid,
1923 0, slapd_daemon_task, NULL );
1926 Debug( LDAP_DEBUG_ANY,
1927 "listener ldap_pvt_thread_create failed (%d)\n", rc, 0, 0 );
1931 /* wait for the listener thread to complete */
1932 ldap_pvt_thread_join( listener_tid, (void *) NULL );
1935 /* experimental code */
1936 slapd_daemon_task( NULL );
1945 #if defined( HAVE_WINSOCK2 )
1946 WORD wVersionRequested;
1950 wVersionRequested = MAKEWORD( 2, 0 );
1952 err = WSAStartup( wVersionRequested, &wsaData );
1954 /* Tell the user that we couldn't find a usable */
1959 /* Confirm that the WinSock DLL supports 2.0.*/
1960 /* Note that if the DLL supports versions greater */
1961 /* than 2.0 in addition to 2.0, it will still return */
1962 /* 2.0 in wVersion since that is the version we */
1965 if ( LOBYTE( wsaData.wVersion ) != 2 ||
1966 HIBYTE( wsaData.wVersion ) != 0 )
1968 /* Tell the user that we couldn't find a usable */
1974 /* The WinSock DLL is acceptable. Proceed. */
1975 #elif defined( HAVE_WINSOCK )
1977 if ( WSAStartup( 0x0101, &wsaData ) != 0 ) {
1984 int sockdestroy(void)
1986 #if defined( HAVE_WINSOCK2 ) || defined( HAVE_WINSOCK )
1993 slap_sig_shutdown( int sig )
1996 Debug(LDAP_DEBUG_TRACE, "slap_sig_shutdown: signal %d\n", sig, 0, 0);
2000 * If the NT Service Manager is controlling the server, we don't
2001 * want SIGBREAK to kill the server. For some strange reason,
2002 * SIGBREAK is generated when a user logs out.
2005 #if HAVE_NT_SERVICE_MANAGER && SIGBREAK
2006 if (is_NT_Service && sig == SIGBREAK)
2011 if (sig == SIGHUP && global_gentlehup && slapd_gentle_shutdown == 0)
2012 slapd_gentle_shutdown = 1;
2018 /* reinstall self */
2019 (void) SIGNAL_REINSTALL( sig, slap_sig_shutdown );
2023 slap_sig_wake( int sig )
2027 /* reinstall self */
2028 (void) SIGNAL_REINSTALL( sig, slap_sig_wake );
2032 void slapd_add_internal(ber_socket_t s, int isactive) {
2033 slapd_add(s, isactive);
2036 Listener ** slapd_get_listeners(void) {
2037 return slap_listeners;
2040 void slap_wake_listener()