2 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
4 * Copyright 1998-2018 The OpenLDAP Foundation.
5 * Portions Copyright 2007 by Howard Chu, Symas Corporation.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted only as authorized by the OpenLDAP
12 * A copy of this license is available in the file LICENSE in the
13 * top-level directory of the distribution or, alternatively, at
14 * <http://www.OpenLDAP.org/license.html>.
16 /* Portions Copyright (c) 1995 Regents of the University of Michigan.
17 * All rights reserved.
19 * Redistribution and use in source and binary forms are permitted
20 * provided that this notice is preserved and that due credit is given
21 * to the University of Michigan at Ann Arbor. The name of the University
22 * may not be used to endorse or promote products derived from this
23 * software without specific prior written permission. This software
24 * is provided ``as is'' without express or implied warranty.
33 #include <ac/socket.h>
34 #include <ac/string.h>
36 #include <ac/unistd.h>
39 #include "ldap_pvt_thread.h"
49 # include <sys/types.h>
50 # include <sys/event.h>
51 # include <sys/time.h>
52 #elif defined(HAVE_SYS_EPOLL_H) && defined(HAVE_EPOLL)
53 # include <sys/epoll.h>
54 #elif defined(SLAP_X_DEVPOLL) && defined(HAVE_SYS_DEVPOLL_H) && defined(HAVE_DEVPOLL)
55 # include <sys/types.h>
56 # include <sys/stat.h>
58 # include <sys/devpoll.h>
59 #endif /* ! kqueue && ! epoll && ! /dev/poll */
62 int allow_severity = LOG_INFO;
63 int deny_severity = LOG_NOTICE;
64 #endif /* TCP Wrappers */
67 # include <sys/stat.h>
68 /* this should go in <ldap.h> as soon as it is accepted */
69 # define LDAPI_MOD_URLEXT "x-mod"
70 #endif /* LDAP_PF_LOCAL */
73 int slap_inet4or6 = AF_UNSPEC;
75 int slap_inet4or6 = AF_INET;
80 ber_socket_t dtblsize;
81 slap_ssf_t local_ssf = LDAP_PVT_SASL_LOCAL_SSF;
82 struct runqueue_s slapd_rq;
84 #ifndef SLAPD_MAX_DAEMON_THREADS
85 #define SLAPD_MAX_DAEMON_THREADS 16
87 int slapd_daemon_threads = 1;
88 int slapd_daemon_mask;
90 #ifdef LDAP_TCP_BUFFER
93 #endif /* LDAP_TCP_BUFFER */
95 Listener **slap_listeners = NULL;
96 static volatile sig_atomic_t listening = 1; /* 0 when slap_listeners closed */
97 static ldap_pvt_thread_t *listener_tid;
99 #ifndef SLAPD_LISTEN_BACKLOG
100 #define SLAPD_LISTEN_BACKLOG 2048
101 #endif /* ! SLAPD_LISTEN_BACKLOG */
103 #define DAEMON_ID(fd) (fd & slapd_daemon_mask)
105 static ber_socket_t wake_sds[SLAPD_MAX_DAEMON_THREADS][2];
108 static volatile int waking;
110 #define WAKE_LISTENER(l,w) do { \
111 if ((w) && ++waking < 5) { \
112 tcp_write( SLAP_FD2SOCK(wake_sds[l][1]), "0", 1 ); \
115 #else /* ! NO_THREADS */
116 #define WAKE_LISTENER(l,w) do { \
118 tcp_write( SLAP_FD2SOCK(wake_sds[l][1]), "0", 1 ); \
121 #endif /* ! NO_THREADS */
123 volatile sig_atomic_t slapd_shutdown = 0;
124 volatile sig_atomic_t slapd_gentle_shutdown = 0;
125 volatile sig_atomic_t slapd_abrupt_shutdown = 0;
128 ldap_pvt_thread_mutex_t slapd_ws_mutex;
129 SOCKET *slapd_ws_sockets;
133 #define SD_LISTENER 8
137 static ldap_pvt_thread_mutex_t sd_tcpd_mutex;
138 #endif /* TCP Wrappers */
140 typedef struct slap_daemon_st {
141 ldap_pvt_thread_mutex_t sd_mutex;
143 ber_socket_t sd_nactives;
147 #if defined(HAVE_KQUEUE)
148 uint8_t* sd_fdmodes; /* indexed by fd */
149 Listener** sd_l; /* indexed by fd */
150 /* Double buffer the kqueue changes to avoid holding the sd_mutex \
151 * during a kevent() call. \
154 struct kevent* sd_changes;
158 int sd_changeidx; /* index to current change buffer */
160 #elif defined(HAVE_EPOLL)
162 struct epoll_event *sd_epolls;
165 #elif defined(SLAP_X_DEVPOLL) && defined(HAVE_DEVPOLL)
167 struct pollfd *sd_pollfd;
171 #else /* ! kqueue && ! epoll && ! /dev/poll */
175 #else /* ! HAVE_WINSOCK */
179 #endif /* ! HAVE_WINSOCK */
180 #endif /* ! kqueue && ! epoll && ! /dev/poll */
183 static slap_daemon_st slap_daemon[SLAPD_MAX_DAEMON_THREADS];
186 * NOTE: naming convention for macros:
188 * - SLAP_SOCK_* and SLAP_EVENT_* for public interface that deals
189 * with file descriptors and events respectively
191 * - SLAP_<type>_* for private interface; type by now is one of
192 * EPOLL, DEVPOLL, SELECT, KQUEUE
194 * private interface should not be used in the code.
197 # define SLAP_EVENT_FNAME "kqueue"
198 # define SLAP_EVENTS_ARE_INDEXED 0
199 # define SLAP_EVENT_MAX(t) (2 * dtblsize) /* each fd can have a read & a write event */
201 # define SLAP_EVENT_DECL \
202 static struct kevent* events = NULL
204 # define SLAP_EVENT_INIT(t) do {\
206 events = ch_malloc(sizeof(*events) * SLAP_EVENT_MAX(t)); \
208 Debug(LDAP_DEBUG_ANY, \
209 "daemon: SLAP_EVENT_INIT: ch_malloc of events failed, wanted %d bytes\n", \
210 sizeof(*events) * SLAP_EVENT_MAX(t), 0, 0); \
211 slapd_shutdown = 2; \
216 # define SLAP_SOCK_INIT(t) do { \
219 Debug(LDAP_DEBUG_ANY, "daemon: SLAP_SOCK_INIT: dtblsize=%d\n", dtblsize, 0, 0); \
220 slap_daemon[t].sd_nfds = 0; \
221 slap_daemon[t].sd_changeidx = 0; \
222 for (kq_i = 0; kq_i < 2; kq_i++) { \
223 struct kq_change* kqc = &slap_daemon[t].sd_kqc[kq_i]; \
224 kqc->sd_nchanges = 0; \
225 kqc->sd_maxchanges = 256; /* will grow as needed */ \
226 kq_nbytes = sizeof(*kqc->sd_changes) * kqc->sd_maxchanges; \
227 kqc->sd_changes = ch_calloc(1, kq_nbytes); \
228 if (!kqc->sd_changes) { \
229 Debug(LDAP_DEBUG_ANY, \
230 "daemon: SLAP_SOCK_INIT: ch_calloc of slap_daemon.sd_changes[%d] failed, wanted %d bytes, shutting down\n", \
231 kq_i, kq_nbytes, 0); \
232 slapd_shutdown = 2; \
235 kq_nbytes = sizeof(*slap_daemon[t].sd_fdmodes) * dtblsize; \
236 slap_daemon[t].sd_fdmodes = ch_calloc(1, kq_nbytes); \
237 if (!slap_daemon[t].sd_fdmodes) { \
238 Debug(LDAP_DEBUG_ANY, \
239 "daemon: SLAP_SOCK_INIT: ch_calloc of slap_daemon.sd_fdmodes failed, wanted %d bytes, shutting down\n", \
241 slapd_shutdown = 2; \
243 kq_nbytes = sizeof(*slap_daemon[t].sd_l) * dtblsize; \
244 slap_daemon[t].sd_l = ch_calloc(1, kq_nbytes); \
245 if (!slap_daemon[t].sd_l) { \
246 Debug(LDAP_DEBUG_ANY, \
247 "daemon: SLAP_SOCK_INIT: ch_calloc of slap_daemon.sd_l failed, wanted %d bytes, shutting down\n", \
249 slapd_shutdown = 2; \
251 slap_daemon[t].sd_kq = kqueue(); \
252 if (slap_daemon[t].sd_kq < 0) { \
253 Debug(LDAP_DEBUG_ANY, "daemon: SLAP_SOCK_INIT: kqueue() failed, errno=%d, shutting down\n", errno, 0, 0); \
254 slapd_shutdown = 2; \
258 # define SLAP_SOCK_DESTROY(t) do { \
260 if (slap_daemon[t].sd_kq > 0) { \
261 close(slap_daemon[t].sd_kq); \
262 slap_daemon[t].sd_kq = -1; \
264 for (kq_i = 0; kq_i < 2; kq_i++) { \
265 if (slap_daemon[t].sd_kqc[kq_i].sd_changes != NULL) { \
266 ch_free(slap_daemon[t].sd_kqc[kq_i].sd_changes); \
267 slap_daemon[t].sd_kqc[kq_i].sd_changes = NULL; \
269 slap_daemon[t].sd_kqc[kq_i].sd_nchanges = 0; \
270 slap_daemon[t].sd_kqc[kq_i].sd_maxchanges = 0; \
272 if (slap_daemon[t].sd_l != NULL) { \
273 ch_free(slap_daemon[t].sd_l); \
274 slap_daemon[t].sd_l = NULL; \
276 if (slap_daemon[t].sd_fdmodes != NULL) { \
277 ch_free(slap_daemon[t].sd_fdmodes); \
278 slap_daemon[t].sd_fdmodes = NULL; \
280 slap_daemon[t].sd_nfds = 0; \
283 # define SLAP_KQUEUE_SOCK_ACTIVE 0x01
284 # define SLAP_KQUEUE_SOCK_READ_ENABLED 0x02
285 # define SLAP_KQUEUE_SOCK_WRITE_ENABLED 0x04
287 # define SLAP_SOCK_IS_ACTIVE(t,s) (slap_daemon[t].sd_fdmodes[(s)] != 0)
288 # define SLAP_SOCK_NOT_ACTIVE(t,s) (slap_daemon[t].sd_fdmodes[(s)] == 0)
289 # define SLAP_SOCK_IS_READ(t,s) (slap_daemon[t].sd_fdmodes[(s)] & SLAP_KQUEUE_SOCK_READ_ENABLED)
290 # define SLAP_SOCK_IS_WRITE(t,s) (slap_daemon[t].sd_fdmodes[(s)] & SLAP_KQUEUE_SOCK_WRITE_ENABLED)
293 * SLAP_SOCK_SET_* & SLAP_SOCK_CLR_* get called a _lot_. Since kevent()
294 * processes changes before it looks for events, batch up the changes which
295 * will get submitted the next time kevent() is called for events.
298 # define SLAP_KQUEUE_CHANGE(t, s, filter, flag) do { \
299 /* If maxchanges is reached, have to realloc to make room for more. \
300 * Ideally we'd call kevent(), but the daemon thread could be sitting \
301 * in kevent() waiting for events. \
303 struct kq_change* kqc = &slap_daemon[t].sd_kqc[slap_daemon[t].sd_changeidx]; \
304 if (kqc->sd_nchanges == kqc->sd_maxchanges) { \
305 /* Don't want to do this very often. Double the size. */ \
307 Debug(LDAP_DEBUG_CONNS, \
308 "daemon: SLAP_KQUEUE_CHANGE: increasing slap_daemon.sd_kqc[%d].maxchanges from %d to %d\n", \
309 slap_daemon[t].sd_changeidx, kqc->sd_maxchanges, 2*kqc->sd_maxchanges); \
310 kqc->sd_maxchanges += kqc->sd_maxchanges; \
311 kq_nbytes = sizeof(*kqc->sd_changes) * kqc->sd_maxchanges; \
312 kqc->sd_changes = ch_realloc(kqc->sd_changes, kq_nbytes); \
313 if (!kqc->sd_changes) { \
314 Debug(LDAP_DEBUG_ANY, \
315 "daemon: SLAP_KQUEUE_CHANGE: ch_realloc of slap_daemon.sd_kqc[%d].sd_changes failed, wanted %d bytes, shutting down\n", \
316 slap_daemon[t].sd_changeidx, kq_nbytes, 0); \
317 slapd_shutdown = 2; \
318 break; /* Don't want to do the EV_SET if sd_changes is NULL */ \
321 EV_SET(&kqc->sd_changes[kqc->sd_nchanges++], \
322 (s), (filter), (flag), 0, 0, slap_daemon[t].sd_l[(s)]); \
325 # define SLAP_KQUEUE_SOCK_SET(t, s, filter, mode) do { \
326 if ((slap_daemon[t].sd_fdmodes[(s)] & (mode)) != (mode)) { \
327 slap_daemon[t].sd_fdmodes[(s)] |= (mode); \
328 SLAP_KQUEUE_CHANGE(t, (s), (filter), EV_ENABLE); \
332 # define SLAP_KQUEUE_SOCK_CLR(t, s, filter, mode) do { \
333 if (slap_daemon[t].sd_fdmodes[(s)] & (mode)) { \
334 slap_daemon[t].sd_fdmodes[(s)] &= ~(mode); \
335 SLAP_KQUEUE_CHANGE(t, (s), (filter), EV_DISABLE); \
339 # define SLAP_SOCK_SET_READ(t, s) SLAP_KQUEUE_SOCK_SET(t, (s), EVFILT_READ, SLAP_KQUEUE_SOCK_READ_ENABLED)
340 # define SLAP_SOCK_SET_WRITE(t, s) SLAP_KQUEUE_SOCK_SET(t, (s), EVFILT_WRITE, SLAP_KQUEUE_SOCK_WRITE_ENABLED)
341 # define SLAP_SOCK_CLR_READ(t, s) SLAP_KQUEUE_SOCK_CLR(t, (s), EVFILT_READ, SLAP_KQUEUE_SOCK_READ_ENABLED)
342 # define SLAP_SOCK_CLR_WRITE(t, s) SLAP_KQUEUE_SOCK_CLR(t, (s), EVFILT_WRITE, SLAP_KQUEUE_SOCK_WRITE_ENABLED)
344 /* kqueue doesn't need to do anything to clear the event. */
345 # define SLAP_EVENT_CLR_READ(i) do {} while (0)
346 # define SLAP_EVENT_CLR_WRITE(i) do {} while (0)
348 # define SLAP_SOCK_ADD(t, s, l) do { \
349 assert( s < dtblsize ); \
350 slap_daemon[t].sd_l[(s)] = (l); \
351 slap_daemon[t].sd_fdmodes[(s)] = SLAP_KQUEUE_SOCK_ACTIVE | SLAP_KQUEUE_SOCK_READ_ENABLED; \
352 ++slap_daemon[t].sd_nfds; \
353 SLAP_KQUEUE_CHANGE(t, (s), EVFILT_READ, EV_ADD); \
354 SLAP_KQUEUE_CHANGE(t, (s), EVFILT_WRITE, EV_ADD | EV_DISABLE); \
357 # define SLAP_SOCK_DEL(t, s) do { \
358 SLAP_KQUEUE_CHANGE(t, (s), EVFILT_READ, EV_DELETE); \
359 SLAP_KQUEUE_CHANGE(t, (s), EVFILT_WRITE, EV_DELETE); \
360 slap_daemon[t].sd_l[(s)] = NULL; \
361 slap_daemon[t].sd_fdmodes[(s)] = 0; \
362 --slap_daemon[t].sd_nfds; \
365 # define SLAP_EVENT_FD(t, i) (events[(i)].ident)
367 # define SLAP_EVENT_IS_READ(t, i) \
368 (events[(i)].filter == EVFILT_READ && SLAP_SOCK_IS_READ(t, SLAP_EVENT_FD(0, i)))
370 # define SLAP_EVENT_IS_WRITE(t, i) \
371 (events[(i)].filter == EVFILT_WRITE && SLAP_SOCK_IS_WRITE(t, SLAP_EVENT_FD(0, i)))
373 # define SLAP_EVENT_IS_LISTENER(t, i) \
374 (events[(i)].udata && SLAP_SOCK_IS_READ(t, SLAP_EVENT_FD(t, i)))
376 # define SLAP_EVENT_LISTENER(t, i) ((Listener*)(events[(i)].udata))
378 # define SLAP_EVENT_WAIT(t, tvp, nsp) do { \
379 struct timespec kq_ts; \
380 struct timespec* kq_tsp; \
383 TIMEVAL_TO_TIMESPEC((tvp), &kq_ts); \
388 /* Save the change buffer index for use when the mutex is unlocked, \
389 * then switch the index so new changes go to the other buffer. \
391 ldap_pvt_thread_mutex_lock( &slap_daemon[t].sd_mutex ); \
392 kq_idx = slap_daemon[t].sd_changeidx; \
393 slap_daemon[t].sd_changeidx ^= 1; \
394 ldap_pvt_thread_mutex_unlock( &slap_daemon[t].sd_mutex ); \
395 *(nsp) = kevent(slap_daemon[t].sd_kq, \
396 slap_daemon[t].sd_kqc[kq_idx].sd_nchanges \
397 ? slap_daemon[t].sd_kqc[kq_idx].sd_changes : NULL, \
398 slap_daemon[t].sd_kqc[kq_idx].sd_nchanges, \
399 events, SLAP_EVENT_MAX(t), kq_tsp); \
400 slap_daemon[t].sd_kqc[kq_idx].sd_nchanges = 0; \
403 /*-------------------------------------------------------------------------------*/
405 #elif defined(HAVE_EPOLL)
406 /***************************************
407 * Use epoll infrastructure - epoll(4) *
408 ***************************************/
409 # define SLAP_EVENT_FNAME "epoll"
410 # define SLAP_EVENTS_ARE_INDEXED 0
411 # define SLAP_EPOLL_SOCK_IX(t,s) (slap_daemon[t].sd_index[(s)])
412 # define SLAP_EPOLL_SOCK_EP(t,s) (slap_daemon[t].sd_epolls[SLAP_EPOLL_SOCK_IX(t,s)])
413 # define SLAP_EPOLL_SOCK_EV(t,s) (SLAP_EPOLL_SOCK_EP(t,s).events)
414 # define SLAP_SOCK_IS_ACTIVE(t,s) (SLAP_EPOLL_SOCK_IX(t,s) != -1)
415 # define SLAP_SOCK_NOT_ACTIVE(t,s) (SLAP_EPOLL_SOCK_IX(t,s) == -1)
416 # define SLAP_EPOLL_SOCK_IS_SET(t,s, mode) (SLAP_EPOLL_SOCK_EV(t,s) & (mode))
418 # define SLAP_SOCK_IS_READ(t,s) SLAP_EPOLL_SOCK_IS_SET(t,(s), EPOLLIN)
419 # define SLAP_SOCK_IS_WRITE(t,s) SLAP_EPOLL_SOCK_IS_SET(t,(s), EPOLLOUT)
421 # define SLAP_EPOLL_SOCK_SET(t,s, mode) do { \
422 if ( (SLAP_EPOLL_SOCK_EV(t,s) & (mode)) != (mode) ) { \
423 SLAP_EPOLL_SOCK_EV(t,s) |= (mode); \
424 epoll_ctl( slap_daemon[t].sd_epfd, EPOLL_CTL_MOD, (s), \
425 &SLAP_EPOLL_SOCK_EP(t,s) ); \
429 # define SLAP_EPOLL_SOCK_CLR(t,s, mode) do { \
430 if ( (SLAP_EPOLL_SOCK_EV(t,s) & (mode)) ) { \
431 SLAP_EPOLL_SOCK_EV(t,s) &= ~(mode); \
432 epoll_ctl( slap_daemon[t].sd_epfd, EPOLL_CTL_MOD, s, \
433 &SLAP_EPOLL_SOCK_EP(t,s) ); \
437 # define SLAP_SOCK_SET_READ(t,s) SLAP_EPOLL_SOCK_SET(t,s, EPOLLIN)
438 # define SLAP_SOCK_SET_WRITE(t,s) SLAP_EPOLL_SOCK_SET(t,s, EPOLLOUT)
440 # define SLAP_SOCK_CLR_READ(t,s) SLAP_EPOLL_SOCK_CLR(t,(s), EPOLLIN)
441 # define SLAP_SOCK_CLR_WRITE(t,s) SLAP_EPOLL_SOCK_CLR(t,(s), EPOLLOUT)
443 # define SLAP_SOCK_SET_SUSPEND(t,s) \
444 ( slap_daemon[t].sd_suspend[SLAP_EPOLL_SOCK_IX(t,s)] = 1 )
445 # define SLAP_SOCK_CLR_SUSPEND(t,s) \
446 ( slap_daemon[t].sd_suspend[SLAP_EPOLL_SOCK_IX(t,s)] = 0 )
447 # define SLAP_SOCK_IS_SUSPEND(t,s) \
448 ( slap_daemon[t].sd_suspend[SLAP_EPOLL_SOCK_IX(t,s)] == 1 )
450 # define SLAP_EPOLL_EVENT_CLR(i, mode) (revents[(i)].events &= ~(mode))
452 # define SLAP_EVENT_MAX(t) slap_daemon[t].sd_nfds
454 /* If a Listener address is provided, store that as the epoll data.
455 * Otherwise, store the address of this socket's slot in the
456 * index array. If we can't do this add, the system is out of
457 * resources and we need to shutdown.
459 # define SLAP_SOCK_ADD(t, s, l) do { \
461 SLAP_EPOLL_SOCK_IX(t,(s)) = slap_daemon[t].sd_nfds; \
462 SLAP_EPOLL_SOCK_EP(t,(s)).data.ptr = (l) ? (l) : (void *)(&SLAP_EPOLL_SOCK_IX(t,s)); \
463 SLAP_EPOLL_SOCK_EV(t,(s)) = EPOLLIN; \
464 rc = epoll_ctl(slap_daemon[t].sd_epfd, EPOLL_CTL_ADD, \
465 (s), &SLAP_EPOLL_SOCK_EP(t,(s))); \
467 slap_daemon[t].sd_nfds++; \
469 Debug( LDAP_DEBUG_ANY, \
470 "daemon: epoll_ctl(ADD,fd=%d) failed, errno=%d, shutting down\n", \
472 slapd_shutdown = 2; \
476 # define SLAP_EPOLL_EV_LISTENER(t,ptr) \
477 (((int *)(ptr) >= slap_daemon[t].sd_index && \
478 (int *)(ptr) <= &slap_daemon[t].sd_index[dtblsize]) ? 0 : 1 )
480 # define SLAP_EPOLL_EV_PTRFD(t,ptr) (SLAP_EPOLL_EV_LISTENER(t,ptr) ? \
481 ((Listener *)ptr)->sl_sd : \
482 (ber_socket_t) ((int *)(ptr) - slap_daemon[t].sd_index))
484 # define SLAP_SOCK_DEL(t,s) do { \
485 int fd, rc, index = SLAP_EPOLL_SOCK_IX(t,(s)); \
486 if ( index < 0 ) break; \
487 rc = epoll_ctl(slap_daemon[t].sd_epfd, EPOLL_CTL_DEL, \
488 (s), &SLAP_EPOLL_SOCK_EP(t,(s))); \
489 slap_daemon[t].sd_epolls[index] = \
490 slap_daemon[t].sd_epolls[slap_daemon[t].sd_nfds-1]; \
491 fd = SLAP_EPOLL_EV_PTRFD(t,slap_daemon[t].sd_epolls[index].data.ptr); \
492 slap_daemon[t].sd_index[fd] = index; \
493 slap_daemon[t].sd_index[(s)] = -1; \
494 slap_daemon[t].sd_nfds--; \
497 # define SLAP_EVENT_CLR_READ(i) SLAP_EPOLL_EVENT_CLR((i), EPOLLIN)
498 # define SLAP_EVENT_CLR_WRITE(i) SLAP_EPOLL_EVENT_CLR((i), EPOLLOUT)
500 # define SLAP_EPOLL_EVENT_CHK(i, mode) (revents[(i)].events & mode)
502 # define SLAP_EVENT_IS_READ(i) SLAP_EPOLL_EVENT_CHK((i), EPOLLIN)
503 # define SLAP_EVENT_IS_WRITE(i) SLAP_EPOLL_EVENT_CHK((i), EPOLLOUT)
504 # define SLAP_EVENT_IS_LISTENER(t,i) SLAP_EPOLL_EV_LISTENER(t,revents[(i)].data.ptr)
505 # define SLAP_EVENT_LISTENER(t,i) ((Listener *)(revents[(i)].data.ptr))
507 # define SLAP_EVENT_FD(t,i) SLAP_EPOLL_EV_PTRFD(t,revents[(i)].data.ptr)
509 # define SLAP_SOCK_INIT(t) do { \
511 slap_daemon[t].sd_epolls = ch_calloc(1, \
512 ( sizeof(struct epoll_event) * 2 \
513 + sizeof(int) ) * dtblsize * 2); \
514 slap_daemon[t].sd_index = (int *)&slap_daemon[t].sd_epolls[ 2 * dtblsize ]; \
515 slap_daemon[t].sd_epfd = epoll_create( dtblsize / slapd_daemon_threads ); \
516 for ( j = 0; j < dtblsize; j++ ) slap_daemon[t].sd_index[j] = -1; \
519 # define SLAP_SOCK_DESTROY(t) do { \
520 if ( slap_daemon[t].sd_epolls != NULL ) { \
521 ch_free( slap_daemon[t].sd_epolls ); \
522 slap_daemon[t].sd_epolls = NULL; \
523 slap_daemon[t].sd_index = NULL; \
524 close( slap_daemon[t].sd_epfd ); \
528 # define SLAP_EVENT_DECL struct epoll_event *revents
530 # define SLAP_EVENT_INIT(t) do { \
531 revents = slap_daemon[t].sd_epolls + dtblsize; \
534 # define SLAP_EVENT_WAIT(t, tvp, nsp) do { \
535 *(nsp) = epoll_wait( slap_daemon[t].sd_epfd, revents, \
536 dtblsize, (tvp) ? (tvp)->tv_sec * 1000 : -1 ); \
539 #elif defined(SLAP_X_DEVPOLL) && defined(HAVE_DEVPOLL)
541 /*************************************************************
542 * Use Solaris' (>= 2.7) /dev/poll infrastructure - poll(7d) *
543 *************************************************************/
544 # define SLAP_EVENT_FNAME "/dev/poll"
545 # define SLAP_EVENTS_ARE_INDEXED 0
547 * - sd_index is used much like with epoll()
548 * - sd_l is maintained as an array containing the address
549 * of the listener; the index is the fd itself
550 * - sd_pollfd is used to keep track of what data has been
551 * registered in /dev/poll
553 # define SLAP_DEVPOLL_SOCK_IX(t,s) (slap_daemon[t].sd_index[(s)])
554 # define SLAP_DEVPOLL_SOCK_LX(t,s) (slap_daemon[t].sd_l[(s)])
555 # define SLAP_DEVPOLL_SOCK_EP(t,s) (slap_daemon[t].sd_pollfd[SLAP_DEVPOLL_SOCK_IX(t,(s))])
556 # define SLAP_DEVPOLL_SOCK_FD(t,s) (SLAP_DEVPOLL_SOCK_EP(t,(s)).fd)
557 # define SLAP_DEVPOLL_SOCK_EV(t,s) (SLAP_DEVPOLL_SOCK_EP(t,(s)).events)
558 # define SLAP_SOCK_IS_ACTIVE(t,s) (SLAP_DEVPOLL_SOCK_IX(t,(s)) != -1)
559 # define SLAP_SOCK_NOT_ACTIVE(t,s) (SLAP_DEVPOLL_SOCK_IX(t,(s)) == -1)
560 # define SLAP_SOCK_IS_SET(t,s, mode) (SLAP_DEVPOLL_SOCK_EV(t,(s)) & (mode))
562 # define SLAP_SOCK_IS_READ(t,s) SLAP_SOCK_IS_SET(t,(s), POLLIN)
563 # define SLAP_SOCK_IS_WRITE(t,s) SLAP_SOCK_IS_SET(t,(s), POLLOUT)
565 /* as far as I understand, any time we need to communicate with the kernel
566 * about the number and/or properties of a file descriptor we need it to
567 * wait for, we have to rewrite the whole set */
568 # define SLAP_DEVPOLL_WRITE_POLLFD(t,s, pfd, n, what, shdn) do { \
570 size_t size = (n) * sizeof( struct pollfd ); \
571 /* FIXME: use pwrite? */ \
572 rc = write( slap_daemon[t].sd_dpfd, (pfd), size ); \
573 if ( rc != size ) { \
574 Debug( LDAP_DEBUG_ANY, "daemon: " SLAP_EVENT_FNAME ": " \
575 "%s fd=%d failed errno=%d\n", \
576 (what), (s), errno ); \
578 slapd_shutdown = 2; \
583 # define SLAP_DEVPOLL_SOCK_SET(t,s, mode) do { \
584 Debug( LDAP_DEBUG_CONNS, "SLAP_SOCK_SET_%s(%d)=%d\n", \
585 (mode) == POLLIN ? "READ" : "WRITE", (s), \
586 ( (SLAP_DEVPOLL_SOCK_EV(t,(s)) & (mode)) != (mode) ) ); \
587 if ( (SLAP_DEVPOLL_SOCK_EV(t,(s)) & (mode)) != (mode) ) { \
589 SLAP_DEVPOLL_SOCK_EV(t,(s)) |= (mode); \
590 pfd.fd = SLAP_DEVPOLL_SOCK_FD(t,(s)); \
591 pfd.events = /* (mode) */ SLAP_DEVPOLL_SOCK_EV(t,(s)); \
592 SLAP_DEVPOLL_WRITE_POLLFD(t,(s), &pfd, 1, "SET", 0); \
596 # define SLAP_DEVPOLL_SOCK_CLR(t,s, mode) do { \
597 Debug( LDAP_DEBUG_CONNS, "SLAP_SOCK_CLR_%s(%d)=%d\n", \
598 (mode) == POLLIN ? "READ" : "WRITE", (s), \
599 ( (SLAP_DEVPOLL_SOCK_EV(t,(s)) & (mode)) == (mode) ) ); \
600 if ((SLAP_DEVPOLL_SOCK_EV(t,(s)) & (mode)) == (mode) ) { \
601 struct pollfd pfd[2]; \
602 SLAP_DEVPOLL_SOCK_EV(t,(s)) &= ~(mode); \
603 pfd[0].fd = SLAP_DEVPOLL_SOCK_FD(t,(s)); \
604 pfd[0].events = POLLREMOVE; \
605 pfd[1] = SLAP_DEVPOLL_SOCK_EP(t,(s)); \
606 SLAP_DEVPOLL_WRITE_POLLFD(t,(s), &pfd[0], 2, "CLR", 0); \
610 # define SLAP_SOCK_SET_READ(t,s) SLAP_DEVPOLL_SOCK_SET(t,s, POLLIN)
611 # define SLAP_SOCK_SET_WRITE(t,s) SLAP_DEVPOLL_SOCK_SET(t,s, POLLOUT)
613 # define SLAP_SOCK_CLR_READ(t,s) SLAP_DEVPOLL_SOCK_CLR(t,(s), POLLIN)
614 # define SLAP_SOCK_CLR_WRITE(t,s) SLAP_DEVPOLL_SOCK_CLR(t,(s), POLLOUT)
616 # define SLAP_SOCK_SET_SUSPEND(t,s) \
617 ( slap_daemon[t].sd_suspend[SLAP_DEVPOLL_SOCK_IX(t,(s))] = 1 )
618 # define SLAP_SOCK_CLR_SUSPEND(t,s) \
619 ( slap_daemon[t].sd_suspend[SLAP_DEVPOLL_SOCK_IX(t,(s))] = 0 )
620 # define SLAP_SOCK_IS_SUSPEND(t,s) \
621 ( slap_daemon[t].sd_suspend[SLAP_DEVPOLL_SOCK_IX(t,(s))] == 1 )
623 # define SLAP_DEVPOLL_EVENT_CLR(i, mode) (revents[(i)].events &= ~(mode))
625 # define SLAP_EVENT_MAX(t) slap_daemon[t].sd_nfds
627 /* If a Listener address is provided, store that in the sd_l array.
628 * If we can't do this add, the system is out of resources and we
631 # define SLAP_SOCK_ADD(t, s, l) do { \
632 Debug( LDAP_DEBUG_CONNS, "SLAP_SOCK_ADD(%d, %p)\n", (s), (l), 0 ); \
633 SLAP_DEVPOLL_SOCK_IX(t,(s)) = slap_daemon[t].sd_nfds; \
634 SLAP_DEVPOLL_SOCK_LX(t,(s)) = (l); \
635 SLAP_DEVPOLL_SOCK_FD(t,(s)) = (s); \
636 SLAP_DEVPOLL_SOCK_EV(t,(s)) = POLLIN; \
637 SLAP_DEVPOLL_WRITE_POLLFD(t,(s), &SLAP_DEVPOLL_SOCK_EP(t, (s)), 1, "ADD", 1); \
638 slap_daemon[t].sd_nfds++; \
641 # define SLAP_DEVPOLL_EV_LISTENER(ptr) ((ptr) != NULL)
643 # define SLAP_SOCK_DEL(t,s) do { \
644 int fd, index = SLAP_DEVPOLL_SOCK_IX(t,(s)); \
645 Debug( LDAP_DEBUG_CONNS, "SLAP_SOCK_DEL(%d)\n", (s), 0, 0 ); \
646 if ( index < 0 ) break; \
647 if ( index < slap_daemon[t].sd_nfds - 1 ) { \
648 struct pollfd pfd = slap_daemon[t].sd_pollfd[index]; \
649 fd = slap_daemon[t].sd_pollfd[slap_daemon[t].sd_nfds - 1].fd; \
650 slap_daemon[t].sd_pollfd[index] = slap_daemon[t].sd_pollfd[slap_daemon[t].sd_nfds - 1]; \
651 slap_daemon[t].sd_pollfd[slap_daemon[t].sd_nfds - 1] = pfd; \
652 slap_daemon[t].sd_index[fd] = index; \
654 slap_daemon[t].sd_index[(s)] = -1; \
655 slap_daemon[t].sd_pollfd[slap_daemon[t].sd_nfds - 1].events = POLLREMOVE; \
656 SLAP_DEVPOLL_WRITE_POLLFD(t,(s), &slap_daemon[t].sd_pollfd[slap_daemon[t].sd_nfds - 1], 1, "DEL", 0); \
657 slap_daemon[t].sd_pollfd[slap_daemon[t].sd_nfds - 1].events = 0; \
658 slap_daemon[t].sd_nfds--; \
661 # define SLAP_EVENT_CLR_READ(i) SLAP_DEVPOLL_EVENT_CLR((i), POLLIN)
662 # define SLAP_EVENT_CLR_WRITE(i) SLAP_DEVPOLL_EVENT_CLR((i), POLLOUT)
664 # define SLAP_DEVPOLL_EVENT_CHK(i, mode) (revents[(i)].events & (mode))
666 # define SLAP_EVENT_FD(t,i) (revents[(i)].fd)
668 # define SLAP_EVENT_IS_READ(i) SLAP_DEVPOLL_EVENT_CHK((i), POLLIN)
669 # define SLAP_EVENT_IS_WRITE(i) SLAP_DEVPOLL_EVENT_CHK((i), POLLOUT)
670 # define SLAP_EVENT_IS_LISTENER(t,i) SLAP_DEVPOLL_EV_LISTENER(SLAP_DEVPOLL_SOCK_LX(t, SLAP_EVENT_FD(t,(i))))
671 # define SLAP_EVENT_LISTENER(t,i) SLAP_DEVPOLL_SOCK_LX(t, SLAP_EVENT_FD(t,(i)))
673 # define SLAP_SOCK_DESTROY(t) do { \
674 if ( slap_daemon[t].sd_pollfd != NULL ) { \
675 ch_free( slap_daemon[t].sd_pollfd ); \
676 slap_daemon[t].sd_pollfd = NULL; \
677 slap_daemon[t].sd_index = NULL; \
678 slap_daemon[t].sd_l = NULL; \
679 close( slap_daemon[t].sd_dpfd ); \
683 # define SLAP_SOCK_INIT(t) do { \
684 slap_daemon[t].sd_pollfd = ch_calloc( 1, \
685 ( sizeof(struct pollfd) * 2 \
687 + sizeof( Listener * ) ) * dtblsize ); \
688 slap_daemon[t].sd_index = (int *)&slap_daemon[t].sd_pollfd[ 2 * dtblsize ]; \
689 slap_daemon[t].sd_l = (Listener **)&slap_daemon[t].sd_index[ dtblsize ]; \
690 slap_daemon[t].sd_dpfd = open( SLAP_EVENT_FNAME, O_RDWR ); \
691 if ( slap_daemon[t].sd_dpfd == -1 ) { \
692 Debug( LDAP_DEBUG_ANY, "daemon: " SLAP_EVENT_FNAME ": " \
693 "open(\"" SLAP_EVENT_FNAME "\") failed errno=%d\n", \
695 SLAP_SOCK_DESTROY(t); \
698 for ( i = 0; i < dtblsize; i++ ) { \
699 slap_daemon[t].sd_pollfd[i].fd = -1; \
700 slap_daemon[t].sd_index[i] = -1; \
704 # define SLAP_EVENT_DECL struct pollfd *revents
706 # define SLAP_EVENT_INIT(t) do { \
707 revents = &slap_daemon[t].sd_pollfd[ dtblsize ]; \
710 # define SLAP_EVENT_WAIT(t, tvp, nsp) do { \
711 struct dvpoll sd_dvpoll; \
712 sd_dvpoll.dp_timeout = (tvp) ? (tvp)->tv_sec * 1000 : -1; \
713 sd_dvpoll.dp_nfds = dtblsize; \
714 sd_dvpoll.dp_fds = revents; \
715 *(nsp) = ioctl( slap_daemon[t].sd_dpfd, DP_POLL, &sd_dvpoll ); \
718 #else /* ! kqueue && ! epoll && ! /dev/poll */
720 # define SLAP_EVENT_FNAME "WSselect"
721 /* Winsock provides a "select" function but its fd_sets are
722 * actually arrays of sockets. Since these sockets are handles
723 * and not a contiguous range of small integers, we manage our
724 * own "fd" table of socket handles and use their indices as
727 * All of our listener/connection structures use fds; the actual
728 * I/O functions use sockets. The SLAP_FD2SOCK macro in proto-slap.h
729 * handles the mapping.
731 * Despite the mapping overhead, this is about 45% more efficient
732 * than just using Winsock's select and FD_ISSET directly.
734 * Unfortunately Winsock's select implementation doesn't scale well
735 * as the number of connections increases. This probably needs to be
736 * rewritten to use the Winsock overlapped/asynchronous I/O functions.
738 # define SLAP_EVENTS_ARE_INDEXED 1
739 # define SLAP_EVENT_DECL fd_set readfds, writefds; char *rflags
740 # define SLAP_EVENT_INIT(t) do { \
742 FD_ZERO( &readfds ); \
743 FD_ZERO( &writefds ); \
744 rflags = slap_daemon[t].sd_rflags; \
745 memset( rflags, 0, slap_daemon[t].sd_nfds ); \
746 for ( i=0; i<slap_daemon[t].sd_nfds; i++ ) { \
747 if ( slap_daemon[t].sd_flags[i] & SD_READ ) \
748 FD_SET( slapd_ws_sockets[i], &readfds );\
749 if ( slap_daemon[t].sd_flags[i] & SD_WRITE ) \
750 FD_SET( slapd_ws_sockets[i], &writefds ); \
753 # define SLAP_EVENT_MAX(t) slap_daemon[t].sd_nfds
755 # define SLAP_EVENT_WAIT(t, tvp, nsp) do { \
757 *(nsp) = select( SLAP_EVENT_MAX(t), &readfds, \
758 nwriters > 0 ? &writefds : NULL, NULL, (tvp) ); \
759 for ( i=0; i<readfds.fd_count; i++) { \
760 int fd = slapd_sock2fd(readfds.fd_array[i]); \
762 slap_daemon[t].sd_rflags[fd] = SD_READ; \
763 if ( fd >= *(nsp)) *(nsp) = fd+1; \
766 for ( i=0; i<writefds.fd_count; i++) { \
767 int fd = slapd_sock2fd(writefds.fd_array[i]); \
769 slap_daemon[t].sd_rflags[fd] = SD_WRITE; \
770 if ( fd >= *(nsp)) *(nsp) = fd+1; \
775 # define SLAP_EVENT_IS_READ(fd) (rflags[fd] & SD_READ)
776 # define SLAP_EVENT_IS_WRITE(fd) (rflags[fd] & SD_WRITE)
778 # define SLAP_EVENT_CLR_READ(fd) rflags[fd] &= ~SD_READ
779 # define SLAP_EVENT_CLR_WRITE(fd) rflags[fd] &= ~SD_WRITE
781 # define SLAP_SOCK_INIT(t) do { \
783 ldap_pvt_thread_mutex_init( &slapd_ws_mutex ); \
784 slapd_ws_sockets = ch_malloc( dtblsize * ( sizeof(SOCKET) + 2)); \
785 memset( slapd_ws_sockets, -1, dtblsize * sizeof(SOCKET) ); \
787 slap_daemon[t].sd_flags = (char *)(slapd_ws_sockets + dtblsize); \
788 slap_daemon[t].sd_rflags = slap_daemon[t].sd_flags + dtblsize; \
789 memset( slap_daemon[t].sd_flags, 0, dtblsize ); \
790 slapd_ws_sockets[t*2] = wake_sds[t][0]; \
791 slapd_ws_sockets[t*2+1] = wake_sds[t][1]; \
792 wake_sds[t][0] = t*2; \
793 wake_sds[t][1] = t*2+1; \
794 slap_daemon[t].sd_nfds = t*2 + 2; \
797 # define SLAP_SOCK_DESTROY(t) do { \
798 ch_free( slapd_ws_sockets ); slapd_ws_sockets = NULL; \
799 slap_daemon[t].sd_flags = NULL; \
800 slap_daemon[t].sd_rflags = NULL; \
801 ldap_pvt_thread_mutex_destroy( &slapd_ws_mutex ); \
804 # define SLAP_SOCK_IS_ACTIVE(t,fd) ( slap_daemon[t].sd_flags[fd] & SD_ACTIVE )
805 # define SLAP_SOCK_IS_READ(t,fd) ( slap_daemon[t].sd_flags[fd] & SD_READ )
806 # define SLAP_SOCK_IS_WRITE(t,fd) ( slap_daemon[t].sd_flags[fd] & SD_WRITE )
807 # define SLAP_SOCK_NOT_ACTIVE(t,fd) (!slap_daemon[t].sd_flags[fd])
809 # define SLAP_SOCK_SET_READ(t,fd) ( slap_daemon[t].sd_flags[fd] |= SD_READ )
810 # define SLAP_SOCK_SET_WRITE(t,fd) ( slap_daemon[t].sd_flags[fd] |= SD_WRITE )
812 # define SLAP_SELECT_ADDTEST(t,s) do { \
813 if ((s) >= slap_daemon[t].sd_nfds) slap_daemon[t].sd_nfds = (s)+1; \
816 # define SLAP_SOCK_CLR_READ(t,fd) ( slap_daemon[t].sd_flags[fd] &= ~SD_READ )
817 # define SLAP_SOCK_CLR_WRITE(t,fd) ( slap_daemon[t].sd_flags[fd] &= ~SD_WRITE )
819 # define SLAP_SOCK_ADD(t,s, l) do { \
820 SLAP_SELECT_ADDTEST(t,(s)); \
821 slap_daemon[t].sd_flags[s] = SD_ACTIVE|SD_READ; \
824 # define SLAP_SOCK_DEL(t,s) do { \
825 slap_daemon[t].sd_flags[s] = 0; \
826 slapd_sockdel( s ); \
829 # else /* !HAVE_WINSOCK */
831 /**************************************
832 * Use select system call - select(2) *
833 **************************************/
834 # define SLAP_EVENT_FNAME "select"
836 # define SLAP_EVENTS_ARE_INDEXED 1
837 # define SLAP_EVENT_DECL fd_set readfds, writefds
839 # define SLAP_EVENT_INIT(t) do { \
840 AC_MEMCPY( &readfds, &slap_daemon[t].sd_readers, sizeof(fd_set) ); \
842 AC_MEMCPY( &writefds, &slap_daemon[t].sd_writers, sizeof(fd_set) ); \
844 FD_ZERO( &writefds ); \
849 # define SLAP_SELECT_CHK_SETSIZE do { \
850 if (dtblsize > FD_SETSIZE) dtblsize = FD_SETSIZE; \
852 # else /* ! FD_SETSIZE */
853 # define SLAP_SELECT_CHK_SETSIZE do { ; } while (0)
854 # endif /* ! FD_SETSIZE */
856 # define SLAP_SOCK_INIT(t) do { \
857 SLAP_SELECT_CHK_SETSIZE; \
858 FD_ZERO(&slap_daemon[t].sd_actives); \
859 FD_ZERO(&slap_daemon[t].sd_readers); \
860 FD_ZERO(&slap_daemon[t].sd_writers); \
863 # define SLAP_SOCK_DESTROY(t)
865 # define SLAP_SOCK_IS_ACTIVE(t,fd) FD_ISSET((fd), &slap_daemon[t].sd_actives)
866 # define SLAP_SOCK_IS_READ(t,fd) FD_ISSET((fd), &slap_daemon[t].sd_readers)
867 # define SLAP_SOCK_IS_WRITE(t,fd) FD_ISSET((fd), &slap_daemon[t].sd_writers)
869 # define SLAP_SOCK_NOT_ACTIVE(t,fd) (!SLAP_SOCK_IS_ACTIVE(t,fd) && \
870 !SLAP_SOCK_IS_READ(t,fd) && !SLAP_SOCK_IS_WRITE(t,fd))
872 # define SLAP_SOCK_SET_READ(t,fd) FD_SET((fd), &slap_daemon[t].sd_readers)
873 # define SLAP_SOCK_SET_WRITE(t,fd) FD_SET((fd), &slap_daemon[t].sd_writers)
875 # define SLAP_EVENT_MAX(t) slap_daemon[t].sd_nfds
876 # define SLAP_SELECT_ADDTEST(t,s) do { \
877 if ((s) >= slap_daemon[t].sd_nfds) slap_daemon[t].sd_nfds = (s)+1; \
880 # define SLAP_SOCK_CLR_READ(t,fd) FD_CLR((fd), &slap_daemon[t].sd_readers)
881 # define SLAP_SOCK_CLR_WRITE(t,fd) FD_CLR((fd), &slap_daemon[t].sd_writers)
883 # define SLAP_SOCK_ADD(t,s, l) do { \
884 SLAP_SELECT_ADDTEST(t,(s)); \
885 FD_SET((s), &slap_daemon[t].sd_actives); \
886 FD_SET((s), &slap_daemon[t].sd_readers); \
889 # define SLAP_SOCK_DEL(t,s) do { \
890 FD_CLR((s), &slap_daemon[t].sd_actives); \
891 FD_CLR((s), &slap_daemon[t].sd_readers); \
892 FD_CLR((s), &slap_daemon[t].sd_writers); \
895 # define SLAP_EVENT_IS_READ(fd) FD_ISSET((fd), &readfds)
896 # define SLAP_EVENT_IS_WRITE(fd) FD_ISSET((fd), &writefds)
898 # define SLAP_EVENT_CLR_READ(fd) FD_CLR((fd), &readfds)
899 # define SLAP_EVENT_CLR_WRITE(fd) FD_CLR((fd), &writefds)
901 # define SLAP_EVENT_WAIT(t, tvp, nsp) do { \
902 *(nsp) = select( SLAP_EVENT_MAX(t), &readfds, \
903 nwriters > 0 ? &writefds : NULL, NULL, (tvp) ); \
905 # endif /* !HAVE_WINSOCK */
906 #endif /* ! kqueue && ! epoll && ! /dev/poll */
910 * SLP related functions
914 #define LDAP_SRVTYPE_PREFIX "service:ldap://"
915 #define LDAPS_SRVTYPE_PREFIX "service:ldaps://"
916 static char** slapd_srvurls = NULL;
917 static SLPHandle slapd_hslp = 0;
918 int slapd_register_slp = 0;
919 const char *slapd_slp_attrs = NULL;
921 static SLPError slapd_slp_cookie;
924 slapd_slp_init( const char* urls )
929 slapd_srvurls = ldap_str2charray( urls, " " );
931 if ( slapd_srvurls == NULL ) return;
933 /* find and expand INADDR_ANY URLs */
934 for ( i = 0; slapd_srvurls[i] != NULL; i++ ) {
935 if ( strcmp( slapd_srvurls[i], "ldap:///" ) == 0 ) {
936 slapd_srvurls[i] = (char *) ch_realloc( slapd_srvurls[i],
937 global_host_bv.bv_len +
938 sizeof( LDAP_SRVTYPE_PREFIX ) );
939 strcpy( lutil_strcopy(slapd_srvurls[i],
940 LDAP_SRVTYPE_PREFIX ), global_host_bv.bv_val );
941 } else if ( strcmp( slapd_srvurls[i], "ldaps:///" ) == 0 ) {
942 slapd_srvurls[i] = (char *) ch_realloc( slapd_srvurls[i],
943 global_host_bv.bv_len +
944 sizeof( LDAPS_SRVTYPE_PREFIX ) );
945 strcpy( lutil_strcopy(slapd_srvurls[i],
946 LDAPS_SRVTYPE_PREFIX ), global_host_bv.bv_val );
950 /* open the SLP handle */
951 err = SLPOpen( "en", 0, &slapd_hslp );
953 if ( err != SLP_OK ) {
954 Debug( LDAP_DEBUG_CONNS, "daemon: SLPOpen() failed with %ld\n",
960 slapd_slp_deinit( void )
962 if ( slapd_srvurls == NULL ) return;
964 ldap_charray_free( slapd_srvurls );
965 slapd_srvurls = NULL;
967 /* close the SLP handle */
968 SLPClose( slapd_hslp );
977 /* return the error code in the cookie */
978 *(SLPError*)cookie = errcode;
987 if ( slapd_srvurls == NULL ) return;
989 for ( i = 0; slapd_srvurls[i] != NULL; i++ ) {
990 if ( strncmp( slapd_srvurls[i], LDAP_SRVTYPE_PREFIX,
991 sizeof( LDAP_SRVTYPE_PREFIX ) - 1 ) == 0 ||
992 strncmp( slapd_srvurls[i], LDAPS_SRVTYPE_PREFIX,
993 sizeof( LDAPS_SRVTYPE_PREFIX ) - 1 ) == 0 )
995 err = SLPReg( slapd_hslp,
997 SLP_LIFETIME_MAXIMUM,
999 (slapd_slp_attrs) ? slapd_slp_attrs : "",
1001 slapd_slp_regreport,
1002 &slapd_slp_cookie );
1004 if ( err != SLP_OK || slapd_slp_cookie != SLP_OK ) {
1005 Debug( LDAP_DEBUG_CONNS,
1006 "daemon: SLPReg(%s) failed with %ld, cookie = %ld\n",
1007 slapd_srvurls[i], (long)err, (long)slapd_slp_cookie );
1014 slapd_slp_dereg( void )
1019 if ( slapd_srvurls == NULL ) return;
1021 for ( i = 0; slapd_srvurls[i] != NULL; i++ ) {
1022 err = SLPDereg( slapd_hslp,
1024 slapd_slp_regreport,
1025 &slapd_slp_cookie );
1027 if ( err != SLP_OK || slapd_slp_cookie != SLP_OK ) {
1028 Debug( LDAP_DEBUG_CONNS,
1029 "daemon: SLPDereg(%s) failed with %ld, cookie = %ld\n",
1030 slapd_srvurls[i], (long)err, (long)slapd_slp_cookie );
1034 #endif /* HAVE_SLP */
1037 /* Manage the descriptor to socket table */
1039 slapd_socknew( ber_socket_t s )
1042 ldap_pvt_thread_mutex_lock( &slapd_ws_mutex );
1043 for ( i = 0; i < dtblsize && slapd_ws_sockets[i] != INVALID_SOCKET; i++ );
1044 if ( i == dtblsize ) {
1045 WSASetLastError( WSAEMFILE );
1047 slapd_ws_sockets[i] = s;
1049 ldap_pvt_thread_mutex_unlock( &slapd_ws_mutex );
1054 slapd_sockdel( ber_socket_t s )
1056 ldap_pvt_thread_mutex_lock( &slapd_ws_mutex );
1057 slapd_ws_sockets[s] = INVALID_SOCKET;
1058 ldap_pvt_thread_mutex_unlock( &slapd_ws_mutex );
1062 slapd_sock2fd( ber_socket_t s )
1065 for ( i=0; i<dtblsize && slapd_ws_sockets[i] != s; i++);
1066 if ( i == dtblsize )
1073 * Add a descriptor to daemon control
1075 * If isactive, the descriptor is a live server session and is subject
1076 * to idletimeout control. Otherwise, the descriptor is a passive
1077 * listener or an outbound client session, and not subject to
1078 * idletimeout. The underlying event handler may record the Listener
1079 * argument to differentiate Listener's from real sessions.
1082 slapd_add( ber_socket_t s, int isactive, Listener *sl, int id )
1086 ldap_pvt_thread_mutex_lock( &slap_daemon[id].sd_mutex );
1088 assert( SLAP_SOCK_NOT_ACTIVE(id, s) );
1090 if ( isactive ) slap_daemon[id].sd_nactives++;
1092 SLAP_SOCK_ADD(id, s, sl);
1094 Debug( LDAP_DEBUG_CONNS, "daemon: added %ldr%s listener=%p\n",
1095 (long) s, isactive ? " (active)" : "", (void *)sl );
1097 ldap_pvt_thread_mutex_unlock( &slap_daemon[id].sd_mutex );
1099 WAKE_LISTENER(id,1);
1103 * Remove the descriptor from daemon control
1115 int id = DAEMON_ID(s);
1118 ldap_pvt_thread_mutex_lock( &slap_daemon[id].sd_mutex );
1120 assert( SLAP_SOCK_IS_ACTIVE( id, s ));
1122 if ( wasactive ) slap_daemon[id].sd_nactives--;
1124 waswriter = SLAP_SOCK_IS_WRITE(id, s);
1125 wasreader = SLAP_SOCK_IS_READ(id, s);
1127 Debug( LDAP_DEBUG_CONNS, "daemon: removing %ld%s%s\n",
1129 wasreader ? "r" : "",
1130 waswriter ? "w" : "" );
1132 if ( waswriter ) slap_daemon[id].sd_nwriters--;
1134 SLAP_SOCK_DEL(id, s);
1137 ber_sockbuf_free(sb);
1139 /* If we ran out of file descriptors, we dropped a listener from
1140 * the select() loop. Now that we're removing a session from our
1141 * control, we can try to resume a dropped listener to use.
1143 if ( emfile && listening ) {
1145 for ( i = 0; slap_listeners[i] != NULL; i++ ) {
1146 Listener *lr = slap_listeners[i];
1148 if ( lr->sl_sd == AC_SOCKET_INVALID ) continue;
1149 if ( lr->sl_sd == s ) continue;
1150 if ( lr->sl_mute ) {
1153 if ( DAEMON_ID(lr->sl_sd) != id )
1154 WAKE_LISTENER(DAEMON_ID(lr->sl_sd), wake);
1158 /* Walked the entire list without enabling anything; emfile
1159 * counter is stale. Reset it.
1161 if ( slap_listeners[i] == NULL ) emfile = 0;
1163 ldap_pvt_thread_mutex_unlock( &slap_daemon[id].sd_mutex );
1164 WAKE_LISTENER(id, wake || slapd_gentle_shutdown == 2);
1168 slapd_clr_write( ber_socket_t s, int wake )
1170 int id = DAEMON_ID(s);
1171 ldap_pvt_thread_mutex_lock( &slap_daemon[id].sd_mutex );
1173 if ( SLAP_SOCK_IS_WRITE( id, s )) {
1174 assert( SLAP_SOCK_IS_ACTIVE( id, s ));
1176 SLAP_SOCK_CLR_WRITE( id, s );
1177 slap_daemon[id].sd_nwriters--;
1180 ldap_pvt_thread_mutex_unlock( &slap_daemon[id].sd_mutex );
1181 WAKE_LISTENER(id,wake);
1185 slapd_set_write( ber_socket_t s, int wake )
1187 int id = DAEMON_ID(s);
1188 ldap_pvt_thread_mutex_lock( &slap_daemon[id].sd_mutex );
1190 assert( SLAP_SOCK_IS_ACTIVE( id, s ));
1192 if ( !SLAP_SOCK_IS_WRITE( id, s )) {
1193 SLAP_SOCK_SET_WRITE( id, s );
1194 slap_daemon[id].sd_nwriters++;
1197 ldap_pvt_thread_mutex_unlock( &slap_daemon[id].sd_mutex );
1198 WAKE_LISTENER(id,wake);
1202 slapd_clr_read( ber_socket_t s, int wake )
1205 int id = DAEMON_ID(s);
1206 ldap_pvt_thread_mutex_lock( &slap_daemon[id].sd_mutex );
1208 if ( SLAP_SOCK_IS_ACTIVE( id, s )) {
1209 SLAP_SOCK_CLR_READ( id, s );
1212 ldap_pvt_thread_mutex_unlock( &slap_daemon[id].sd_mutex );
1214 WAKE_LISTENER(id,wake);
1219 slapd_set_read( ber_socket_t s, int wake )
1222 int id = DAEMON_ID(s);
1223 ldap_pvt_thread_mutex_lock( &slap_daemon[id].sd_mutex );
1225 if( SLAP_SOCK_IS_ACTIVE( id, s ) && !SLAP_SOCK_IS_READ( id, s )) {
1226 SLAP_SOCK_SET_READ( id, s );
1230 ldap_pvt_thread_mutex_unlock( &slap_daemon[id].sd_mutex );
1232 WAKE_LISTENER(id,wake);
1236 slapd_close( ber_socket_t s )
1238 Debug( LDAP_DEBUG_CONNS, "daemon: closing %ld\n",
1240 tcp_close( SLAP_FD2SOCK(s) );
1247 slapd_shutsock( ber_socket_t s )
1249 Debug( LDAP_DEBUG_CONNS, "daemon: shutdown socket %ld\n",
1251 shutdown( SLAP_FD2SOCK(s), 2 );
1255 slap_free_listener_addresses( struct sockaddr **sal )
1257 struct sockaddr **sap;
1258 if (sal == NULL) return;
1259 for (sap = sal; *sap != NULL; sap++) ch_free(*sap);
1263 #if defined(LDAP_PF_LOCAL) || defined(SLAP_X_LISTENER_MOD)
1272 assert( exts != NULL );
1273 assert( perms != NULL );
1274 assert( crit != NULL );
1277 for ( i = 0; exts[ i ]; i++ ) {
1278 char *type = exts[ i ];
1281 if ( type[ 0 ] == '!' ) {
1286 if ( strncasecmp( type, LDAPI_MOD_URLEXT "=",
1287 sizeof(LDAPI_MOD_URLEXT "=") - 1 ) == 0 )
1289 char *value = type + ( sizeof(LDAPI_MOD_URLEXT "=") - 1 );
1293 switch (strlen(value)) {
1295 /* skip leading '0' */
1296 if ( value[ 0 ] != '0' ) return LDAP_OTHER;
1300 for ( j = 0; j < 3; j++) {
1303 v = value[ j ] - '0';
1305 if ( v < 0 || v > 7 ) return LDAP_OTHER;
1312 for ( j = 1; j < 10; j++ ) {
1313 static mode_t m[] = { 0,
1314 S_IRUSR, S_IWUSR, S_IXUSR,
1315 S_IRGRP, S_IWGRP, S_IXGRP,
1316 S_IROTH, S_IWOTH, S_IXOTH
1318 static const char c[] = "-rwxrwxrwx";
1320 if ( value[ j ] == c[ j ] ) {
1323 } else if ( value[ j ] != '-' ) {
1336 return LDAP_SUCCESS;
1342 #endif /* LDAP_PF_LOCAL || SLAP_X_LISTENER_MOD */
1344 /* port = 0 indicates AF_LOCAL */
1346 slap_get_listener_addresses(
1348 unsigned short port,
1349 struct sockaddr ***sal )
1351 struct sockaddr **sap;
1353 #ifdef LDAP_PF_LOCAL
1355 *sal = ch_malloc(2 * sizeof(void *));
1356 if (*sal == NULL) return -1;
1359 *sap = ch_malloc(sizeof(struct sockaddr_un));
1360 if (*sap == NULL) goto errexit;
1364 (sizeof(((struct sockaddr_un *)*sap)->sun_path) - 1) )
1366 Debug( LDAP_DEBUG_ANY,
1367 "daemon: domain socket path (%s) too long in URL",
1372 (void)memset( (void *)*sap, '\0', sizeof(struct sockaddr_un) );
1373 (*sap)->sa_family = AF_LOCAL;
1374 strcpy( ((struct sockaddr_un *)*sap)->sun_path, host );
1376 #endif /* LDAP_PF_LOCAL */
1378 #ifdef HAVE_GETADDRINFO
1379 struct addrinfo hints, *res, *sai;
1383 memset( &hints, '\0', sizeof(hints) );
1384 hints.ai_flags = AI_PASSIVE;
1385 hints.ai_socktype = SOCK_STREAM;
1386 hints.ai_family = slap_inet4or6;
1387 snprintf(serv, sizeof serv, "%d", port);
1389 if ( (err = getaddrinfo(host, serv, &hints, &res)) ) {
1390 Debug( LDAP_DEBUG_ANY, "daemon: getaddrinfo() failed: %s\n",
1391 AC_GAI_STRERROR(err), 0, 0);
1396 for (n=2; (sai = sai->ai_next) != NULL; n++) {
1399 *sal = ch_calloc(n, sizeof(void *));
1400 if (*sal == NULL) return -1;
1405 for ( sai=res; sai; sai=sai->ai_next ) {
1406 if( sai->ai_addr == NULL ) {
1407 Debug( LDAP_DEBUG_ANY, "slap_get_listener_addresses: "
1408 "getaddrinfo ai_addr is NULL?\n", 0, 0, 0 );
1413 switch (sai->ai_family) {
1414 # ifdef LDAP_PF_INET6
1416 *sap = ch_malloc(sizeof(struct sockaddr_in6));
1421 *(struct sockaddr_in6 *)*sap =
1422 *((struct sockaddr_in6 *)sai->ai_addr);
1424 # endif /* LDAP_PF_INET6 */
1426 *sap = ch_malloc(sizeof(struct sockaddr_in));
1431 *(struct sockaddr_in *)*sap =
1432 *((struct sockaddr_in *)sai->ai_addr);
1440 (*sap)->sa_family = sai->ai_family;
1448 #else /* ! HAVE_GETADDRINFO */
1451 struct hostent *he = NULL;
1453 if ( host == NULL ) {
1454 in.s_addr = htonl(INADDR_ANY);
1456 } else if ( !inet_aton( host, &in ) ) {
1457 he = gethostbyname( host );
1459 Debug( LDAP_DEBUG_ANY,
1460 "daemon: invalid host %s", host, 0, 0);
1463 for (n = 0; he->h_addr_list[n]; n++) /* empty */;
1466 *sal = ch_malloc((n+1) * sizeof(void *));
1467 if (*sal == NULL) return -1;
1470 for ( i = 0; i<n; i++ ) {
1471 sap[i] = ch_malloc(sizeof(struct sockaddr_in));
1472 if (*sap == NULL) goto errexit;
1474 (void)memset( (void *)sap[i], '\0', sizeof(struct sockaddr_in) );
1475 sap[i]->sa_family = AF_INET;
1476 ((struct sockaddr_in *)sap[i])->sin_port = htons(port);
1477 AC_MEMCPY( &((struct sockaddr_in *)sap[i])->sin_addr,
1478 he ? (struct in_addr *)he->h_addr_list[i] : &in,
1479 sizeof(struct in_addr) );
1482 #endif /* ! HAVE_GETADDRINFO */
1488 slap_free_listener_addresses(*sal);
1502 unsigned short port;
1503 int err, addrlen = 0;
1504 struct sockaddr **sal = NULL, **psal;
1505 int socktype = SOCK_STREAM; /* default to COTS */
1508 #if defined(LDAP_PF_LOCAL) || defined(SLAP_X_LISTENER_MOD)
1513 #endif /* LDAP_PF_LOCAL || SLAP_X_LISTENER_MOD */
1515 rc = ldap_url_parse( url, &lud );
1517 if( rc != LDAP_URL_SUCCESS ) {
1518 Debug( LDAP_DEBUG_ANY,
1519 "daemon: listen URL \"%s\" parse error=%d\n",
1524 l.sl_url.bv_val = NULL;
1529 if( ldap_pvt_url_scheme2tls( lud->lud_scheme ) ) {
1530 Debug( LDAP_DEBUG_ANY, "daemon: TLS not supported (%s)\n",
1532 ldap_free_urldesc( lud );
1536 if(! lud->lud_port ) lud->lud_port = LDAP_PORT;
1538 #else /* HAVE_TLS */
1539 l.sl_is_tls = ldap_pvt_url_scheme2tls( lud->lud_scheme );
1541 if(! lud->lud_port ) {
1542 lud->lud_port = l.sl_is_tls ? LDAPS_PORT : LDAP_PORT;
1544 #endif /* HAVE_TLS */
1546 #ifdef LDAP_TCP_BUFFER
1549 #endif /* LDAP_TCP_BUFFER */
1551 port = (unsigned short) lud->lud_port;
1553 tmp = ldap_pvt_url_scheme2proto(lud->lud_scheme);
1554 if ( tmp == LDAP_PROTO_IPC ) {
1555 #ifdef LDAP_PF_LOCAL
1556 if ( lud->lud_host == NULL || lud->lud_host[0] == '\0' ) {
1557 err = slap_get_listener_addresses(LDAPI_SOCK, 0, &sal);
1559 err = slap_get_listener_addresses(lud->lud_host, 0, &sal);
1561 #else /* ! LDAP_PF_LOCAL */
1563 Debug( LDAP_DEBUG_ANY, "daemon: URL scheme not supported: %s",
1565 ldap_free_urldesc( lud );
1567 #endif /* ! LDAP_PF_LOCAL */
1569 if( lud->lud_host == NULL || lud->lud_host[0] == '\0'
1570 || strcmp(lud->lud_host, "*") == 0 )
1572 err = slap_get_listener_addresses(NULL, port, &sal);
1574 err = slap_get_listener_addresses(lud->lud_host, port, &sal);
1578 #ifdef LDAP_CONNECTIONLESS
1579 l.sl_is_udp = ( tmp == LDAP_PROTO_UDP );
1580 #endif /* LDAP_CONNECTIONLESS */
1582 #if defined(LDAP_PF_LOCAL) || defined(SLAP_X_LISTENER_MOD)
1583 if ( lud->lud_exts ) {
1584 err = get_url_perms( lud->lud_exts, &l.sl_perms, &crit );
1586 l.sl_perms = S_IRWXU | S_IRWXO;
1588 #endif /* LDAP_PF_LOCAL || SLAP_X_LISTENER_MOD */
1590 ldap_free_urldesc( lud );
1592 slap_free_listener_addresses(sal);
1596 /* If we got more than one address returned, we need to make space
1597 * for it in the slap_listeners array.
1599 for ( num=0; sal[num]; num++ ) /* empty */;
1601 *listeners += num-1;
1602 slap_listeners = ch_realloc( slap_listeners,
1603 (*listeners + 1) * sizeof(Listener *) );
1607 while ( *sal != NULL ) {
1609 switch( (*sal)->sa_family ) {
1613 #ifdef LDAP_PF_INET6
1617 #endif /* LDAP_PF_INET6 */
1618 #ifdef LDAP_PF_LOCAL
1622 #endif /* LDAP_PF_LOCAL */
1628 #ifdef LDAP_CONNECTIONLESS
1629 if( l.sl_is_udp ) socktype = SOCK_DGRAM;
1630 #endif /* LDAP_CONNECTIONLESS */
1632 s = socket( (*sal)->sa_family, socktype, 0);
1633 if ( s == AC_SOCKET_INVALID ) {
1634 int err = sock_errno();
1635 Debug( LDAP_DEBUG_ANY,
1636 "daemon: %s socket() failed errno=%d (%s)\n",
1637 af, err, sock_errstr(err) );
1641 l.sl_sd = SLAP_SOCKNEW( s );
1643 if ( l.sl_sd >= dtblsize ) {
1644 Debug( LDAP_DEBUG_ANY,
1645 "daemon: listener descriptor %ld is too great %ld\n",
1646 (long) l.sl_sd, (long) dtblsize, 0 );
1652 #ifdef LDAP_PF_LOCAL
1653 if ( (*sal)->sa_family == AF_LOCAL ) {
1654 unlink( ((struct sockaddr_un *)*sal)->sun_path );
1656 #endif /* LDAP_PF_LOCAL */
1659 /* enable address reuse */
1661 rc = setsockopt( s, SOL_SOCKET, SO_REUSEADDR,
1662 (char *) &tmp, sizeof(tmp) );
1663 if ( rc == AC_SOCKET_ERROR ) {
1664 int err = sock_errno();
1665 Debug( LDAP_DEBUG_ANY, "slapd(%ld): "
1666 "setsockopt(SO_REUSEADDR) failed errno=%d (%s)\n",
1667 (long) l.sl_sd, err, sock_errstr(err) );
1669 #endif /* SO_REUSEADDR */
1672 switch( (*sal)->sa_family ) {
1674 addrlen = sizeof(struct sockaddr_in);
1676 #ifdef LDAP_PF_INET6
1679 /* Try to use IPv6 sockets for IPv6 only */
1681 rc = setsockopt( s , IPPROTO_IPV6, IPV6_V6ONLY,
1682 (char *) &tmp, sizeof(tmp) );
1683 if ( rc == AC_SOCKET_ERROR ) {
1684 int err = sock_errno();
1685 Debug( LDAP_DEBUG_ANY, "slapd(%ld): "
1686 "setsockopt(IPV6_V6ONLY) failed errno=%d (%s)\n",
1687 (long) l.sl_sd, err, sock_errstr(err) );
1689 #endif /* IPV6_V6ONLY */
1690 addrlen = sizeof(struct sockaddr_in6);
1692 #endif /* LDAP_PF_INET6 */
1694 #ifdef LDAP_PF_LOCAL
1699 setsockopt( s, 0, LOCAL_CREDS, &one, sizeof( one ) );
1701 #endif /* LOCAL_CREDS */
1703 addrlen = sizeof( struct sockaddr_un );
1705 #endif /* LDAP_PF_LOCAL */
1708 #ifdef LDAP_PF_LOCAL
1709 /* create socket with all permissions set for those systems
1710 * that honor permissions on sockets (e.g. Linux); typically,
1711 * only write is required. To exploit filesystem permissions,
1712 * place the socket in a directory and use directory's
1713 * permissions. Need write perms to the directory to
1714 * create/unlink the socket; likely need exec perms to access
1715 * the socket (ITS#4709) */
1717 mode_t old_umask = 0;
1719 if ( (*sal)->sa_family == AF_LOCAL ) {
1720 old_umask = umask( 0 );
1722 #endif /* LDAP_PF_LOCAL */
1723 rc = bind( s, *sal, addrlen );
1724 #ifdef LDAP_PF_LOCAL
1725 if ( old_umask != 0 ) {
1729 #endif /* LDAP_PF_LOCAL */
1732 Debug( LDAP_DEBUG_ANY,
1733 "daemon: bind(%ld) failed errno=%d (%s)\n",
1734 (long)l.sl_sd, err, sock_errstr( err ) );
1740 switch ( (*sal)->sa_family ) {
1741 #ifdef LDAP_PF_LOCAL
1743 char *path = ((struct sockaddr_un *)*sal)->sun_path;
1744 l.sl_name.bv_len = strlen(path) + STRLENOF("PATH=");
1745 l.sl_name.bv_val = ber_memalloc( l.sl_name.bv_len + 1 );
1746 snprintf( l.sl_name.bv_val, l.sl_name.bv_len + 1,
1749 #endif /* LDAP_PF_LOCAL */
1752 char addr[INET_ADDRSTRLEN];
1754 #if defined( HAVE_GETADDRINFO ) && defined( HAVE_INET_NTOP )
1755 s = inet_ntop( AF_INET, &((struct sockaddr_in *)*sal)->sin_addr,
1756 addr, sizeof(addr) );
1757 #else /* ! HAVE_GETADDRINFO || ! HAVE_INET_NTOP */
1758 s = inet_ntoa( ((struct sockaddr_in *) *sal)->sin_addr );
1759 #endif /* ! HAVE_GETADDRINFO || ! HAVE_INET_NTOP */
1760 if (!s) s = SLAP_STRING_UNKNOWN;
1761 port = ntohs( ((struct sockaddr_in *)*sal) ->sin_port );
1763 ber_memalloc( sizeof("IP=255.255.255.255:65535") );
1764 snprintf( l.sl_name.bv_val, sizeof("IP=255.255.255.255:65535"),
1765 "IP=%s:%d", s, port );
1766 l.sl_name.bv_len = strlen( l.sl_name.bv_val );
1769 #ifdef LDAP_PF_INET6
1771 char addr[INET6_ADDRSTRLEN];
1773 s = inet_ntop( AF_INET6, &((struct sockaddr_in6 *)*sal)->sin6_addr,
1775 if (!s) s = SLAP_STRING_UNKNOWN;
1776 port = ntohs( ((struct sockaddr_in6 *)*sal)->sin6_port );
1777 l.sl_name.bv_len = strlen(s) + sizeof("IP=[]:65535");
1778 l.sl_name.bv_val = ber_memalloc( l.sl_name.bv_len );
1779 snprintf( l.sl_name.bv_val, l.sl_name.bv_len, "IP=[%s]:%d",
1781 l.sl_name.bv_len = strlen( l.sl_name.bv_val );
1783 #endif /* LDAP_PF_INET6 */
1786 Debug( LDAP_DEBUG_ANY, "daemon: unsupported address family (%d)\n",
1787 (int) (*sal)->sa_family, 0, 0 );
1791 AC_MEMCPY(&l.sl_sa, *sal, addrlen);
1792 ber_str2bv( url, 0, 1, &l.sl_url);
1793 li = ch_malloc( sizeof( Listener ) );
1795 slap_listeners[*cur] = li;
1800 slap_free_listener_addresses(psal);
1802 if ( l.sl_url.bv_val == NULL ) {
1803 Debug( LDAP_DEBUG_TRACE,
1804 "slap_open_listener: failed on %s\n", url, 0, 0 );
1808 Debug( LDAP_DEBUG_TRACE, "daemon: listener initialized %s\n",
1809 l.sl_url.bv_val, 0, 0 );
1813 static int sockinit(void);
1814 static int sockdestroy(void);
1816 static int daemon_inited = 0;
1819 slapd_daemon_init( const char *urls )
1824 Debug( LDAP_DEBUG_ARGS, "daemon_init: %s\n",
1825 urls ? urls : "<null>", 0, 0 );
1827 for ( i=0; i<SLAPD_MAX_DAEMON_THREADS; i++ ) {
1828 wake_sds[i][0] = AC_SOCKET_INVALID;
1829 wake_sds[i][1] = AC_SOCKET_INVALID;
1832 ldap_pvt_thread_mutex_init( &slap_daemon[0].sd_mutex );
1834 ldap_pvt_thread_mutex_init( &sd_tcpd_mutex );
1835 #endif /* TCP Wrappers */
1839 if( (rc = sockinit()) != 0 ) return rc;
1842 dtblsize = sysconf( _SC_OPEN_MAX );
1843 #elif defined(HAVE_GETDTABLESIZE)
1844 dtblsize = getdtablesize();
1845 #else /* ! HAVE_SYSCONF && ! HAVE_GETDTABLESIZE */
1846 dtblsize = FD_SETSIZE;
1847 #endif /* ! HAVE_SYSCONF && ! HAVE_GETDTABLESIZE */
1849 /* open a pipe (or something equivalent connected to itself).
1850 * we write a byte on this fd whenever we catch a signal. The main
1851 * loop will be select'ing on this socket, and will wake up when
1852 * this byte arrives.
1854 if( (rc = lutil_pair( wake_sds[0] )) < 0 ) {
1855 Debug( LDAP_DEBUG_ANY,
1856 "daemon: lutil_pair() failed rc=%d\n", rc, 0, 0 );
1859 ber_pvt_socket_set_nonblock( wake_sds[0][1], 1 );
1863 if( urls == NULL ) urls = "ldap:///";
1865 u = ldap_str2charray( urls, " " );
1867 if( u == NULL || u[0] == NULL ) {
1868 Debug( LDAP_DEBUG_ANY, "daemon_init: no urls (%s) provided.\n",
1871 ldap_charray_free( u );
1875 for( i=0; u[i] != NULL; i++ ) {
1876 Debug( LDAP_DEBUG_TRACE, "daemon_init: listen on %s\n",
1881 Debug( LDAP_DEBUG_ANY, "daemon_init: no listeners to open (%s)\n",
1883 ldap_charray_free( u );
1887 Debug( LDAP_DEBUG_TRACE, "daemon_init: %d listeners to open...\n",
1889 slap_listeners = ch_malloc( (i+1)*sizeof(Listener *) );
1891 for(n = 0, j = 0; u[n]; n++ ) {
1892 if ( slap_open_listener( u[n], &i, &j ) ) {
1893 ldap_charray_free( u );
1897 slap_listeners[j] = NULL;
1899 Debug( LDAP_DEBUG_TRACE, "daemon_init: %d listeners opened\n",
1904 if( slapd_register_slp ) {
1905 slapd_slp_init( urls );
1908 #endif /* HAVE_SLP */
1910 ldap_charray_free( u );
1917 slapd_daemon_destroy( void )
1919 connections_destroy();
1920 if ( daemon_inited ) {
1923 for ( i=0; i<slapd_daemon_threads; i++ ) {
1925 if ( wake_sds[i][1] != INVALID_SOCKET &&
1926 SLAP_FD2SOCK( wake_sds[i][1] ) != SLAP_FD2SOCK( wake_sds[i][0] ))
1927 #endif /* HAVE_WINSOCK */
1928 tcp_close( SLAP_FD2SOCK(wake_sds[i][1]) );
1930 if ( wake_sds[i][0] != INVALID_SOCKET )
1931 #endif /* HAVE_WINSOCK */
1932 tcp_close( SLAP_FD2SOCK(wake_sds[i][0]) );
1933 ldap_pvt_thread_mutex_destroy( &slap_daemon[i].sd_mutex );
1934 SLAP_SOCK_DESTROY(i);
1938 ldap_pvt_thread_mutex_destroy( &sd_tcpd_mutex );
1939 #endif /* TCP Wrappers */
1944 if( slapd_register_slp ) {
1948 #endif /* HAVE_SLP */
1964 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1965 Listener *lr = slap_listeners[l];
1967 if ( lr->sl_sd != AC_SOCKET_INVALID ) {
1969 lr->sl_sd = AC_SOCKET_INVALID;
1970 if ( remove ) slapd_remove( s, NULL, 0, 0, 0 );
1972 #ifdef LDAP_PF_LOCAL
1973 if ( lr->sl_sa.sa_addr.sa_family == AF_LOCAL ) {
1974 unlink( lr->sl_sa.sa_un_addr.sun_path );
1976 #endif /* LDAP_PF_LOCAL */
1984 destroy_listeners( void )
1986 Listener *lr, **ll = slap_listeners;
1991 while ( (lr = *ll++) != NULL ) {
1992 if ( lr->sl_url.bv_val ) {
1993 ber_memfree( lr->sl_url.bv_val );
1996 if ( lr->sl_name.bv_val ) {
1997 ber_memfree( lr->sl_name.bv_val );
2003 free( slap_listeners );
2004 slap_listeners = NULL;
2013 ber_socket_t s, sfd;
2014 ber_socklen_t len = sizeof(from);
2017 struct berval authid = BER_BVNULL;
2018 #ifdef SLAPD_RLOOKUPS
2019 char hbuf[NI_MAXHOST];
2020 #endif /* SLAPD_RLOOKUPS */
2022 char *dnsname = NULL;
2023 const char *peeraddr = NULL;
2024 /* we assume INET6_ADDRSTRLEN > INET_ADDRSTRLEN */
2025 char addr[INET6_ADDRSTRLEN];
2026 #ifdef LDAP_PF_LOCAL
2027 char peername[MAXPATHLEN + sizeof("PATH=")];
2028 #ifdef LDAP_PF_LOCAL_SENDMSG
2030 struct berval peerbv = BER_BVNULL;
2032 #elif defined(LDAP_PF_INET6)
2033 char peername[sizeof("IP=[ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff]:65535")];
2034 #else /* ! LDAP_PF_LOCAL && ! LDAP_PF_INET6 */
2035 char peername[sizeof("IP=255.255.255.255:65336")];
2036 #endif /* LDAP_PF_LOCAL */
2040 Debug( LDAP_DEBUG_TRACE,
2041 ">>> slap_listener(%s)\n",
2042 sl->sl_url.bv_val, 0, 0 );
2046 #ifdef LDAP_CONNECTIONLESS
2047 if ( sl->sl_is_udp ) return 1;
2048 #endif /* LDAP_CONNECTIONLESS */
2050 # ifdef LDAP_PF_LOCAL
2051 /* FIXME: apparently accept doesn't fill
2052 * the sun_path sun_path member */
2053 from.sa_un_addr.sun_path[0] = '\0';
2054 # endif /* LDAP_PF_LOCAL */
2056 s = accept( SLAP_FD2SOCK( sl->sl_sd ), (struct sockaddr *) &from, &len );
2058 /* Resume the listener FD to allow concurrent-processing of
2059 * additional incoming connections.
2062 WAKE_LISTENER(DAEMON_ID(sl->sl_sd),1);
2064 if ( s == AC_SOCKET_INVALID ) {
2065 int err = sock_errno();
2076 ldap_pvt_thread_mutex_lock( &slap_daemon[0].sd_mutex );
2078 /* Stop listening until an existing session closes */
2080 ldap_pvt_thread_mutex_unlock( &slap_daemon[0].sd_mutex );
2083 Debug( LDAP_DEBUG_ANY,
2084 "daemon: accept(%ld) failed errno=%d (%s)\n",
2085 (long) sl->sl_sd, err, sock_errstr(err) );
2086 ldap_pvt_thread_yield();
2089 sfd = SLAP_SOCKNEW( s );
2091 /* make sure descriptor number isn't too great */
2092 if ( sfd >= dtblsize ) {
2093 Debug( LDAP_DEBUG_ANY,
2094 "daemon: %ld beyond descriptor table size %ld\n",
2095 (long) sfd, (long) dtblsize, 0 );
2098 ldap_pvt_thread_yield();
2101 tid = DAEMON_ID(sfd);
2104 ldap_pvt_thread_mutex_lock( &slap_daemon[tid].sd_mutex );
2105 /* newly accepted stream should not be in any of the FD SETS */
2106 assert( SLAP_SOCK_NOT_ACTIVE( tid, sfd ));
2107 ldap_pvt_thread_mutex_unlock( &slap_daemon[tid].sd_mutex );
2108 #endif /* LDAP_DEBUG */
2110 #if defined( SO_KEEPALIVE ) || defined( TCP_NODELAY )
2111 #ifdef LDAP_PF_LOCAL
2112 /* for IPv4 and IPv6 sockets only */
2113 if ( from.sa_addr.sa_family != AF_LOCAL )
2114 #endif /* LDAP_PF_LOCAL */
2119 /* enable keep alives */
2121 rc = setsockopt( s, SOL_SOCKET, SO_KEEPALIVE,
2122 (char *) &tmp, sizeof(tmp) );
2123 if ( rc == AC_SOCKET_ERROR ) {
2124 int err = sock_errno();
2125 Debug( LDAP_DEBUG_ANY,
2126 "slapd(%ld): setsockopt(SO_KEEPALIVE) failed "
2127 "errno=%d (%s)\n", (long) sfd, err, sock_errstr(err) );
2129 #endif /* SO_KEEPALIVE */
2131 /* enable no delay */
2133 rc = setsockopt( s, IPPROTO_TCP, TCP_NODELAY,
2134 (char *)&tmp, sizeof(tmp) );
2135 if ( rc == AC_SOCKET_ERROR ) {
2136 int err = sock_errno();
2137 Debug( LDAP_DEBUG_ANY,
2138 "slapd(%ld): setsockopt(TCP_NODELAY) failed "
2139 "errno=%d (%s)\n", (long) sfd, err, sock_errstr(err) );
2141 #endif /* TCP_NODELAY */
2143 #endif /* SO_KEEPALIVE || TCP_NODELAY */
2145 Debug( LDAP_DEBUG_CONNS,
2146 "daemon: listen=%ld, new connection on %ld\n",
2147 (long) sl->sl_sd, (long) sfd, 0 );
2150 switch ( from.sa_addr.sa_family ) {
2151 # ifdef LDAP_PF_LOCAL
2153 cflag |= CONN_IS_IPC;
2155 /* FIXME: apparently accept doesn't fill
2156 * the sun_path sun_path member */
2157 if ( from.sa_un_addr.sun_path[0] == '\0' ) {
2158 AC_MEMCPY( from.sa_un_addr.sun_path,
2159 sl->sl_sa.sa_un_addr.sun_path,
2160 sizeof( from.sa_un_addr.sun_path ) );
2163 sprintf( peername, "PATH=%s", from.sa_un_addr.sun_path );
2169 #ifdef LDAP_PF_LOCAL_SENDMSG
2170 peerbv.bv_val = peerbuf;
2171 peerbv.bv_len = sizeof( peerbuf );
2173 if( LUTIL_GETPEEREID( s, &uid, &gid, &peerbv ) == 0 ) {
2174 authid.bv_val = ch_malloc(
2175 STRLENOF( "gidNumber=4294967295+uidNumber=4294967295,"
2176 "cn=peercred,cn=external,cn=auth" ) + 1 );
2177 authid.bv_len = sprintf( authid.bv_val,
2178 "gidNumber=%d+uidNumber=%d,"
2179 "cn=peercred,cn=external,cn=auth",
2180 (int) gid, (int) uid );
2181 assert( authid.bv_len <=
2182 STRLENOF( "gidNumber=4294967295+uidNumber=4294967295,"
2183 "cn=peercred,cn=external,cn=auth" ) );
2188 #endif /* LDAP_PF_LOCAL */
2190 # ifdef LDAP_PF_INET6
2192 if ( IN6_IS_ADDR_V4MAPPED(&from.sa_in6_addr.sin6_addr) ) {
2193 #if defined( HAVE_GETADDRINFO ) && defined( HAVE_INET_NTOP )
2194 peeraddr = inet_ntop( AF_INET,
2195 ((struct in_addr *)&from.sa_in6_addr.sin6_addr.s6_addr[12]),
2196 addr, sizeof(addr) );
2197 #else /* ! HAVE_GETADDRINFO || ! HAVE_INET_NTOP */
2198 peeraddr = inet_ntoa( *((struct in_addr *)
2199 &from.sa_in6_addr.sin6_addr.s6_addr[12]) );
2200 #endif /* ! HAVE_GETADDRINFO || ! HAVE_INET_NTOP */
2201 if ( !peeraddr ) peeraddr = SLAP_STRING_UNKNOWN;
2202 sprintf( peername, "IP=%s:%d", peeraddr,
2203 (unsigned) ntohs( from.sa_in6_addr.sin6_port ) );
2205 peeraddr = inet_ntop( AF_INET6,
2206 &from.sa_in6_addr.sin6_addr,
2207 addr, sizeof addr );
2208 if ( !peeraddr ) peeraddr = SLAP_STRING_UNKNOWN;
2209 sprintf( peername, "IP=[%s]:%d", peeraddr,
2210 (unsigned) ntohs( from.sa_in6_addr.sin6_port ) );
2213 # endif /* LDAP_PF_INET6 */
2216 #if defined( HAVE_GETADDRINFO ) && defined( HAVE_INET_NTOP )
2217 peeraddr = inet_ntop( AF_INET, &from.sa_in_addr.sin_addr,
2218 addr, sizeof(addr) );
2219 #else /* ! HAVE_GETADDRINFO || ! HAVE_INET_NTOP */
2220 peeraddr = inet_ntoa( from.sa_in_addr.sin_addr );
2221 #endif /* ! HAVE_GETADDRINFO || ! HAVE_INET_NTOP */
2222 if ( !peeraddr ) peeraddr = SLAP_STRING_UNKNOWN;
2223 sprintf( peername, "IP=%s:%d", peeraddr,
2224 (unsigned) ntohs( from.sa_in_addr.sin_port ) );
2232 if ( ( from.sa_addr.sa_family == AF_INET )
2233 #ifdef LDAP_PF_INET6
2234 || ( from.sa_addr.sa_family == AF_INET6 )
2235 #endif /* LDAP_PF_INET6 */
2239 #ifdef SLAPD_RLOOKUPS
2240 if ( use_reverse_lookup ) {
2242 if (ldap_pvt_get_hname( (const struct sockaddr *)&from, len, hbuf,
2243 sizeof(hbuf), &herr ) == 0) {
2244 ldap_pvt_str2lower( hbuf );
2248 #endif /* SLAPD_RLOOKUPS */
2253 ldap_pvt_thread_mutex_lock( &sd_tcpd_mutex );
2254 rc = hosts_ctl("slapd",
2255 dnsname != NULL ? dnsname : SLAP_STRING_UNKNOWN,
2257 SLAP_STRING_UNKNOWN );
2258 ldap_pvt_thread_mutex_unlock( &sd_tcpd_mutex );
2261 Statslog( LDAP_DEBUG_STATS,
2262 "fd=%ld DENIED from %s (%s)\n",
2264 dnsname != NULL ? dnsname : SLAP_STRING_UNKNOWN,
2270 #endif /* HAVE_TCPD */
2274 if ( sl->sl_is_tls ) cflag |= CONN_IS_TLS;
2276 c = connection_init(sfd, sl,
2277 dnsname != NULL ? dnsname : SLAP_STRING_UNKNOWN,
2278 peername, cflag, ssf,
2279 authid.bv_val ? &authid : NULL
2280 LDAP_PF_LOCAL_SENDMSG_ARG(&peerbv));
2282 if( authid.bv_val ) ch_free(authid.bv_val);
2285 Debug( LDAP_DEBUG_ANY,
2286 "daemon: connection_init(%ld, %s, %s) failed.\n",
2287 (long) sfd, peername, sl->sl_name.bv_val );
2295 slap_listener_thread(
2300 Listener *sl = (Listener *)ptr;
2302 rc = slap_listener( sl );
2304 if( rc != LDAP_SUCCESS ) {
2305 Debug( LDAP_DEBUG_ANY,
2306 "slap_listener_thread(%s): failed err=%d",
2307 sl->sl_url.bv_val, rc, 0 );
2314 slap_listener_activate(
2319 Debug( LDAP_DEBUG_TRACE, "slap_listener_activate(%d): %s\n",
2320 sl->sl_sd, sl->sl_busy ? "busy" : "", 0 );
2324 rc = ldap_pvt_thread_pool_submit( &connection_pool,
2325 slap_listener_thread, (void *) sl );
2328 Debug( LDAP_DEBUG_ANY,
2329 "slap_listener_activate(%d): submit failed (%d)\n",
2340 time_t last_idle_check = 0;
2342 int tid = (ldap_pvt_thread_t *) ptr - listener_tid;
2344 #define SLAPD_IDLE_CHECK_LIMIT 4
2346 slapd_add( wake_sds[tid][0], 0, NULL, tid );
2350 /* Init stuff done only by thread 0 */
2352 last_idle_check = slap_get_time();
2354 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
2355 if ( slap_listeners[l]->sl_sd == AC_SOCKET_INVALID ) continue;
2357 #ifdef LDAP_CONNECTIONLESS
2358 /* Since this is connectionless, the data port is the
2359 * listening port. The listen() and accept() calls
2362 if ( slap_listeners[l]->sl_is_udp )
2364 #endif /* LDAP_CONNECTIONLESS */
2366 /* FIXME: TCP-only! */
2367 #ifdef LDAP_TCP_BUFFER
2369 int origsize, size, realsize, rc;
2371 char buf[ SLAP_TEXT_BUFLEN ];
2374 if ( slap_listeners[l]->sl_tcp_rmem > 0 ) {
2375 size = slap_listeners[l]->sl_tcp_rmem;
2376 } else if ( slapd_tcp_rmem > 0 ) {
2377 size = slapd_tcp_rmem;
2381 optlen = sizeof( origsize );
2382 rc = getsockopt( SLAP_FD2SOCK( slap_listeners[l]->sl_sd ),
2389 int err = sock_errno();
2390 Debug( LDAP_DEBUG_ANY,
2391 "slapd_daemon_task: getsockopt(SO_RCVBUF) failed errno=%d (%s)\n",
2392 err, sock_errstr(err), 0 );
2395 optlen = sizeof( size );
2396 rc = setsockopt( SLAP_FD2SOCK( slap_listeners[l]->sl_sd ),
2399 (const void *)&size,
2403 int err = sock_errno();
2404 Debug( LDAP_DEBUG_ANY,
2405 "slapd_daemon_task: setsockopt(SO_RCVBUF) failed errno=%d (%s)\n",
2406 err, sock_errstr(err), 0 );
2409 optlen = sizeof( realsize );
2410 rc = getsockopt( SLAP_FD2SOCK( slap_listeners[l]->sl_sd ),
2417 int err = sock_errno();
2418 Debug( LDAP_DEBUG_ANY,
2419 "slapd_daemon_task: getsockopt(SO_RCVBUF) failed errno=%d (%s)\n",
2420 err, sock_errstr(err), 0 );
2423 snprintf( buf, sizeof( buf ),
2424 "url=%s (#%d) RCVBUF original size=%d requested size=%d real size=%d",
2425 slap_listeners[l]->sl_url.bv_val, l, origsize, size, realsize );
2426 Debug( LDAP_DEBUG_ANY,
2427 "slapd_daemon_task: %s\n",
2432 if ( slap_listeners[l]->sl_tcp_wmem > 0 ) {
2433 size = slap_listeners[l]->sl_tcp_wmem;
2434 } else if ( slapd_tcp_wmem > 0 ) {
2435 size = slapd_tcp_wmem;
2439 optlen = sizeof( origsize );
2440 rc = getsockopt( SLAP_FD2SOCK( slap_listeners[l]->sl_sd ),
2447 int err = sock_errno();
2448 Debug( LDAP_DEBUG_ANY,
2449 "slapd_daemon_task: getsockopt(SO_SNDBUF) failed errno=%d (%s)\n",
2450 err, sock_errstr(err), 0 );
2453 optlen = sizeof( size );
2454 rc = setsockopt( SLAP_FD2SOCK( slap_listeners[l]->sl_sd ),
2457 (const void *)&size,
2461 int err = sock_errno();
2462 Debug( LDAP_DEBUG_ANY,
2463 "slapd_daemon_task: setsockopt(SO_SNDBUF) failed errno=%d (%s)",
2464 err, sock_errstr(err), 0 );
2467 optlen = sizeof( realsize );
2468 rc = getsockopt( SLAP_FD2SOCK( slap_listeners[l]->sl_sd ),
2475 int err = sock_errno();
2476 Debug( LDAP_DEBUG_ANY,
2477 "slapd_daemon_task: getsockopt(SO_SNDBUF) failed errno=%d (%s)\n",
2478 err, sock_errstr(err), 0 );
2481 snprintf( buf, sizeof( buf ),
2482 "url=%s (#%d) SNDBUF original size=%d requested size=%d real size=%d",
2483 slap_listeners[l]->sl_url.bv_val, l, origsize, size, realsize );
2484 Debug( LDAP_DEBUG_ANY,
2485 "slapd_daemon_task: %s\n",
2489 #endif /* LDAP_TCP_BUFFER */
2491 if ( listen( SLAP_FD2SOCK( slap_listeners[l]->sl_sd ), SLAPD_LISTEN_BACKLOG ) == -1 ) {
2492 int err = sock_errno();
2494 #ifdef LDAP_PF_INET6
2495 /* If error is EADDRINUSE, we are trying to listen to INADDR_ANY and
2496 * we are already listening to in6addr_any, then we want to ignore
2497 * this and continue.
2499 if ( err == EADDRINUSE ) {
2501 struct sockaddr_in sa = slap_listeners[l]->sl_sa.sa_in_addr;
2502 struct sockaddr_in6 sa6;
2504 if ( sa.sin_family == AF_INET &&
2505 sa.sin_addr.s_addr == htonl(INADDR_ANY) ) {
2506 for ( i = 0 ; i < l; i++ ) {
2507 sa6 = slap_listeners[i]->sl_sa.sa_in6_addr;
2508 if ( sa6.sin6_family == AF_INET6 &&
2509 !memcmp( &sa6.sin6_addr, &in6addr_any,
2510 sizeof(struct in6_addr) ) )
2517 /* We are already listening to in6addr_any */
2518 Debug( LDAP_DEBUG_CONNS,
2519 "daemon: Attempt to listen to 0.0.0.0 failed, "
2520 "already listening on ::, assuming IPv4 included\n",
2522 slapd_close( slap_listeners[l]->sl_sd );
2523 slap_listeners[l]->sl_sd = AC_SOCKET_INVALID;
2528 #endif /* LDAP_PF_INET6 */
2529 Debug( LDAP_DEBUG_ANY,
2530 "daemon: listen(%s, 5) failed errno=%d (%s)\n",
2531 slap_listeners[l]->sl_url.bv_val, err,
2536 /* make the listening socket non-blocking */
2537 if ( ber_pvt_socket_set_nonblock( SLAP_FD2SOCK( slap_listeners[l]->sl_sd ), 1 ) < 0 ) {
2538 Debug( LDAP_DEBUG_ANY, "slapd_daemon_task: "
2539 "set nonblocking on a listening socket failed\n",
2545 slapd_add( slap_listeners[l]->sl_sd, 0, slap_listeners[l], -1 );
2548 #ifdef HAVE_NT_SERVICE_MANAGER
2549 if ( started_event != NULL ) {
2550 ldap_pvt_thread_cond_signal( &started_event );
2552 #endif /* HAVE_NT_SERVICE_MANAGER */
2556 /* initialization complete. Here comes the loop. */
2558 while ( !slapd_shutdown ) {
2563 #if SLAP_EVENTS_ARE_INDEXED
2564 ber_socket_t nrfds, nwfds;
2565 #endif /* SLAP_EVENTS_ARE_INDEXED */
2566 #define SLAPD_EBADF_LIMIT 16
2573 struct timeval *tvp;
2579 now = slap_get_time();
2581 if ( !tid && ( global_idletimeout > 0 )) {
2583 /* Set the select timeout.
2584 * Don't just truncate, preserve the fractions of
2585 * seconds to prevent sleeping for zero time.
2588 tv.tv_sec = global_idletimeout / SLAPD_IDLE_CHECK_LIMIT;
2589 tv.tv_usec = global_idletimeout - \
2590 ( tv.tv_sec * SLAPD_IDLE_CHECK_LIMIT );
2591 tv.tv_usec *= 1000000 / SLAPD_IDLE_CHECK_LIMIT;
2592 if ( difftime( last_idle_check +
2593 global_idletimeout/SLAPD_IDLE_CHECK_LIMIT, now ) < 0 )
2597 connections_timeout_idle( now );
2598 last_idle_check = now;
2606 if ( slapd_gentle_shutdown ) {
2607 ber_socket_t active;
2609 if ( !tid && slapd_gentle_shutdown == 1 ) {
2611 Debug( LDAP_DEBUG_ANY, "slapd gentle shutdown\n", 0, 0, 0 );
2612 close_listeners( 1 );
2613 frontendDB->be_restrictops |= SLAP_RESTRICT_OP_WRITES;
2614 LDAP_STAILQ_FOREACH(be, &backendDB, be_next) {
2615 be->be_restrictops |= SLAP_RESTRICT_OP_WRITES;
2617 slapd_gentle_shutdown = 2;
2620 ldap_pvt_thread_mutex_lock( &slap_daemon[tid].sd_mutex );
2621 active = slap_daemon[tid].sd_nactives;
2622 ldap_pvt_thread_mutex_unlock( &slap_daemon[tid].sd_mutex );
2624 if ( active == 0 ) {
2626 for ( l=1; l<slapd_daemon_threads; l++ ) {
2627 ldap_pvt_thread_mutex_lock( &slap_daemon[l].sd_mutex );
2628 active += slap_daemon[l].sd_nactives;
2629 ldap_pvt_thread_mutex_unlock( &slap_daemon[l].sd_mutex );
2641 ldap_pvt_thread_mutex_lock( &slap_daemon[tid].sd_mutex );
2643 nwriters = slap_daemon[tid].sd_nwriters;
2646 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
2647 Listener *lr = slap_listeners[l];
2649 if ( lr->sl_sd == AC_SOCKET_INVALID ) continue;
2650 if ( DAEMON_ID( lr->sl_sd ) != tid ) continue;
2651 if ( !SLAP_SOCK_IS_ACTIVE( tid, lr->sl_sd )) continue;
2653 if ( lr->sl_mute || lr->sl_busy )
2655 SLAP_SOCK_CLR_READ( tid, lr->sl_sd );
2657 SLAP_SOCK_SET_READ( tid, lr->sl_sd );
2661 SLAP_EVENT_INIT(tid);
2663 nfds = SLAP_EVENT_MAX(tid);
2665 if (( global_idletimeout ) && slap_daemon[tid].sd_nactives ) at = 1;
2667 ldap_pvt_thread_mutex_unlock( &slap_daemon[tid].sd_mutex );
2670 #if defined(HAVE_YIELDING_SELECT) || defined(NO_THREADS)
2671 && ( tv.tv_sec || tv.tv_usec )
2672 #endif /* HAVE_YIELDING_SELECT || NO_THREADS */
2680 /* Only thread 0 handles runqueue */
2682 ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
2683 rtask = ldap_pvt_runqueue_next_sched( &slapd_rq, &cat );
2684 while ( rtask && cat.tv_sec && cat.tv_sec <= now ) {
2685 if ( ldap_pvt_runqueue_isrunning( &slapd_rq, rtask )) {
2686 ldap_pvt_runqueue_resched( &slapd_rq, rtask, 0 );
2688 ldap_pvt_runqueue_runtask( &slapd_rq, rtask );
2689 ldap_pvt_runqueue_resched( &slapd_rq, rtask, 0 );
2690 ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
2691 ldap_pvt_thread_pool_submit2( &connection_pool,
2692 rtask->routine, (void *) rtask, &rtask->pool_cookie );
2693 ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
2695 rtask = ldap_pvt_runqueue_next_sched( &slapd_rq, &cat );
2697 ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
2699 if ( rtask && cat.tv_sec ) {
2700 /* NOTE: diff __should__ always be >= 0,
2701 * AFAI understand; however (ITS#4872),
2702 * time_t might be unsigned in some systems,
2703 * while difftime() returns a double */
2704 double diff = difftime( cat.tv_sec, now );
2708 if ( tvp == NULL || diff < tv.tv_sec ) {
2716 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
2717 Listener *lr = slap_listeners[l];
2719 if ( lr->sl_sd == AC_SOCKET_INVALID ) {
2723 if ( lr->sl_mute ) {
2724 Debug( LDAP_DEBUG_CONNS,
2725 "daemon: " SLAP_EVENT_FNAME ": "
2726 "listen=%d muted\n",
2731 if ( lr->sl_busy ) {
2732 Debug( LDAP_DEBUG_CONNS,
2733 "daemon: " SLAP_EVENT_FNAME ": "
2739 Debug( LDAP_DEBUG_CONNS,
2740 "daemon: " SLAP_EVENT_FNAME ": "
2741 "listen=%d active_threads=%d tvp=%s\n",
2742 lr->sl_sd, at, tvp == NULL ? "NULL" : "zero" );
2745 SLAP_EVENT_WAIT( tid, tvp, &ns );
2747 case -1: { /* failure - try again */
2748 int err = sock_errno();
2750 if ( err != EINTR ) {
2753 /* Don't log unless we got it twice in a row */
2754 if ( !( ebadf & 1 ) ) {
2755 Debug( LDAP_DEBUG_ANY,
2761 sock_errstr( err ) );
2763 if ( ebadf >= SLAPD_EBADF_LIMIT ) {
2770 case 0: /* timeout - let threads run */
2772 #ifndef HAVE_YIELDING_SELECT
2773 Debug( LDAP_DEBUG_CONNS, "daemon: " SLAP_EVENT_FNAME
2774 "timeout - yielding\n",
2777 ldap_pvt_thread_yield();
2778 #endif /* ! HAVE_YIELDING_SELECT */
2781 default: /* something happened - deal with it */
2782 if ( slapd_shutdown ) continue;
2785 Debug( LDAP_DEBUG_CONNS,
2786 "daemon: activity on %d descriptor%s\n",
2787 ns, ns != 1 ? "s" : "", 0 );
2791 #if SLAP_EVENTS_ARE_INDEXED
2792 if ( SLAP_EVENT_IS_READ( wake_sds[tid][0] ) ) {
2794 SLAP_EVENT_CLR_READ( wake_sds[tid][0] );
2796 tcp_read( SLAP_FD2SOCK(wake_sds[tid][0]), c, sizeof(c) );
2797 Debug( LDAP_DEBUG_CONNS, "daemon: waked\n", 0, 0, 0 );
2801 /* The event slot equals the descriptor number - this is
2802 * true for Unix select and poll. We treat Windows select
2803 * like this too, even though it's a kludge.
2806 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
2809 if ( ns <= 0 ) break;
2810 if ( slap_listeners[l]->sl_sd == AC_SOCKET_INVALID ) continue;
2811 #ifdef LDAP_CONNECTIONLESS
2812 if ( slap_listeners[l]->sl_is_udp ) continue;
2813 #endif /* LDAP_CONNECTIONLESS */
2814 if ( !SLAP_EVENT_IS_READ( slap_listeners[l]->sl_sd ) ) continue;
2817 SLAP_EVENT_CLR_READ( slap_listeners[l]->sl_sd );
2818 SLAP_EVENT_CLR_WRITE( slap_listeners[l]->sl_sd );
2821 rc = slap_listener_activate( slap_listeners[l] );
2824 /* bypass the following tests if no descriptors left */
2826 #ifndef HAVE_YIELDING_SELECT
2827 ldap_pvt_thread_yield();
2828 #endif /* HAVE_YIELDING_SELECT */
2832 Debug( LDAP_DEBUG_CONNS, "daemon: activity on:", 0, 0, 0 );
2835 for ( i = 0; i < nfds; i++ ) {
2838 r = SLAP_EVENT_IS_READ( i );
2839 /* writefds was not initialized if nwriters was zero */
2840 w = nwriters ? SLAP_EVENT_IS_WRITE( i ) : 0;
2842 Debug( LDAP_DEBUG_CONNS, " %d%s%s", i,
2843 r ? "r" : "", w ? "w" : "" );
2853 if ( ns <= 0 ) break;
2855 Debug( LDAP_DEBUG_CONNS, "\n", 0, 0, 0 );
2857 /* loop through the writers */
2858 for ( i = 0; nwfds > 0; i++ ) {
2860 if ( ! SLAP_EVENT_IS_WRITE( i ) ) continue;
2863 SLAP_EVENT_CLR_WRITE( wd );
2866 Debug( LDAP_DEBUG_CONNS,
2867 "daemon: write active on %d\n",
2871 * NOTE: it is possible that the connection was closed
2872 * and that the stream is now inactive.
2873 * connection_write() must validate the stream is still
2876 * ITS#4338: if the stream is invalid, there is no need to
2877 * close it here. It has already been closed in connection.c.
2879 if ( connection_write( wd ) < 0 ) {
2880 if ( SLAP_EVENT_IS_READ( wd ) ) {
2881 SLAP_EVENT_CLR_READ( (unsigned) wd );
2887 for ( i = 0; nrfds > 0; i++ ) {
2889 if ( ! SLAP_EVENT_IS_READ( i ) ) continue;
2891 SLAP_EVENT_CLR_READ( rd );
2894 Debug ( LDAP_DEBUG_CONNS,
2895 "daemon: read activity on %d\n", rd, 0, 0 );
2897 * NOTE: it is possible that the connection was closed
2898 * and that the stream is now inactive.
2899 * connection_read() must valid the stream is still
2903 connection_read_activate( rd );
2905 #else /* !SLAP_EVENTS_ARE_INDEXED */
2907 /* The events are returned in an arbitrary list. This is true
2908 * for /dev/poll, epoll and kqueue. In order to prioritize things
2909 * so that we can handle wake_sds first, listeners second, and then
2910 * all other connections last (as we do for select), we would need
2911 * to use multiple event handles and cascade them.
2913 * That seems like a bit of hassle. So the wake_sds check has been
2914 * skipped. For epoll and kqueue we can associate arbitrary data with
2915 * an event, so we could use pointers to the listener structure
2916 * instead of just the file descriptor. For /dev/poll we have to
2917 * search the listeners array for a matching descriptor.
2919 * We now handle wake events when we see them; they are not given
2923 Debug( LDAP_DEBUG_CONNS, "daemon: activity on:", 0, 0, 0 );
2925 for ( i = 0; i < ns; i++ ) {
2928 /* Don't log listener events */
2929 if ( SLAP_EVENT_IS_LISTENER( tid, i )
2930 #ifdef LDAP_CONNECTIONLESS
2931 && !( (SLAP_EVENT_LISTENER( tid, i ))->sl_is_udp )
2932 #endif /* LDAP_CONNECTIONLESS */
2938 fd = SLAP_EVENT_FD( tid, i );
2939 /* Don't log internal wake events */
2940 if ( fd == wake_sds[tid][0] ) continue;
2943 r = SLAP_EVENT_IS_READ( tid, i );
2944 w = SLAP_EVENT_IS_WRITE( tid, i );
2946 r = SLAP_EVENT_IS_READ( i );
2947 w = SLAP_EVENT_IS_WRITE( i );
2948 #endif /* HAVE_KQUEUE */
2950 Debug( LDAP_DEBUG_CONNS, " %d%s%s", fd,
2951 r ? "r" : "", w ? "w" : "" );
2954 Debug( LDAP_DEBUG_CONNS, "\n", 0, 0, 0 );
2955 #endif /* LDAP_DEBUG */
2957 for ( i = 0; i < ns; i++ ) {
2958 int rc = 1, fd, w = 0, r = 0;
2960 if ( SLAP_EVENT_IS_LISTENER( tid, i ) ) {
2961 rc = slap_listener_activate( SLAP_EVENT_LISTENER( tid, i ) );
2964 /* If we found a regular listener, rc is now zero, and we
2965 * can skip the data portion. But if it was a UDP listener
2966 * then rc is still 1, and we want to handle the data.
2969 fd = SLAP_EVENT_FD( tid, i );
2971 /* Handle wake events */
2972 if ( fd == wake_sds[tid][0] ) {
2975 tcp_read( SLAP_FD2SOCK(wake_sds[tid][0]), c, sizeof(c) );
2980 if ( SLAP_EVENT_IS_WRITE( tid, i ) ) {
2982 if ( SLAP_EVENT_IS_WRITE( i ) ) {
2983 #endif /* HAVE_KQUEUE */
2984 Debug( LDAP_DEBUG_CONNS,
2985 "daemon: write active on %d\n",
2988 SLAP_EVENT_CLR_WRITE( i );
2992 * NOTE: it is possible that the connection was closed
2993 * and that the stream is now inactive.
2994 * connection_write() must valid the stream is still
2997 if ( connection_write( fd ) < 0 ) {
3001 /* If event is a read */
3003 if ( SLAP_EVENT_IS_READ( tid, i )) {
3005 if ( SLAP_EVENT_IS_READ( i )) {
3006 #endif /* HAVE_KQUEUE */
3008 Debug( LDAP_DEBUG_CONNS,
3009 "daemon: read active on %d\n",
3012 SLAP_EVENT_CLR_READ( i );
3013 connection_read_activate( fd );
3016 /* Don't keep reporting the hangup
3018 if ( SLAP_SOCK_IS_ACTIVE( tid, fd )) {
3019 SLAP_EPOLL_SOCK_SET( tid, fd, EPOLLET );
3025 #endif /* SLAP_EVENTS_ARE_INDEXED */
3027 #ifndef HAVE_YIELDING_SELECT
3028 ldap_pvt_thread_yield();
3029 #endif /* ! HAVE_YIELDING_SELECT */
3032 /* Only thread 0 handles shutdown */
3036 if ( slapd_shutdown == 1 ) {
3037 Debug( LDAP_DEBUG_ANY,
3038 "daemon: shutdown requested and initiated.\n",
3041 } else if ( slapd_shutdown == 2 ) {
3042 #ifdef HAVE_NT_SERVICE_MANAGER
3043 Debug( LDAP_DEBUG_ANY,
3044 "daemon: shutdown initiated by Service Manager.\n",
3046 #else /* !HAVE_NT_SERVICE_MANAGER */
3047 Debug( LDAP_DEBUG_ANY,
3048 "daemon: abnormal condition, shutdown initiated.\n",
3050 #endif /* !HAVE_NT_SERVICE_MANAGER */
3052 Debug( LDAP_DEBUG_ANY,
3053 "daemon: no active streams, shutdown initiated.\n",
3057 close_listeners( 1 );
3059 if ( !slapd_gentle_shutdown ) {
3060 slapd_abrupt_shutdown = 1;
3061 connections_shutdown();
3065 close( slap_daemon[tid].sd_kq );
3068 if ( LogTest( LDAP_DEBUG_ANY )) {
3069 int t = ldap_pvt_thread_pool_backload( &connection_pool );
3070 Debug( LDAP_DEBUG_ANY,
3071 "slapd shutdown: waiting for %d operations/tasks to finish\n",
3074 ldap_pvt_thread_pool_destroy( &connection_pool, 1 );
3080 #ifdef LDAP_CONNECTIONLESS
3082 connectionless_init( void )
3086 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
3087 Listener *lr = slap_listeners[l];
3090 if ( !lr->sl_is_udp ) {
3094 c = connection_init( lr->sl_sd, lr, "", "",
3095 CONN_IS_UDP, (slap_ssf_t) 0, NULL
3096 LDAP_PF_LOCAL_SENDMSG_ARG(NULL));
3099 Debug( LDAP_DEBUG_TRACE,
3100 "connectionless_init: failed on %s (%d)\n",
3101 lr->sl_url.bv_val, lr->sl_sd, 0 );
3109 #endif /* LDAP_CONNECTIONLESS */
3112 slapd_daemon( void )
3116 #ifdef LDAP_CONNECTIONLESS
3117 connectionless_init();
3118 #endif /* LDAP_CONNECTIONLESS */
3120 if ( slapd_daemon_threads > SLAPD_MAX_DAEMON_THREADS )
3121 slapd_daemon_threads = SLAPD_MAX_DAEMON_THREADS;
3123 listener_tid = ch_malloc(slapd_daemon_threads * sizeof(ldap_pvt_thread_t));
3125 /* daemon_init only inits element 0 */
3126 for ( i=1; i<slapd_daemon_threads; i++ )
3128 ldap_pvt_thread_mutex_init( &slap_daemon[i].sd_mutex );
3130 if( (rc = lutil_pair( wake_sds[i] )) < 0 ) {
3131 Debug( LDAP_DEBUG_ANY,
3132 "daemon: lutil_pair() failed rc=%d\n", rc, 0, 0 );
3135 ber_pvt_socket_set_nonblock( wake_sds[i][1], 1 );
3140 for ( i=0; i<slapd_daemon_threads; i++ )
3142 /* listener as a separate THREAD */
3143 rc = ldap_pvt_thread_create( &listener_tid[i],
3144 0, slapd_daemon_task, &listener_tid[i] );
3147 Debug( LDAP_DEBUG_ANY,
3148 "listener ldap_pvt_thread_create failed (%d)\n", rc, 0, 0 );
3153 /* wait for the listener threads to complete */
3154 for ( i=0; i<slapd_daemon_threads; i++ )
3155 ldap_pvt_thread_join( listener_tid[i], (void *)NULL );
3157 destroy_listeners();
3158 ch_free( listener_tid );
3159 listener_tid = NULL;
3167 #if defined( HAVE_WINSOCK2 )
3168 WORD wVersionRequested;
3172 wVersionRequested = MAKEWORD( 2, 0 );
3174 err = WSAStartup( wVersionRequested, &wsaData );
3176 /* Tell the user that we couldn't find a usable */
3181 /* Confirm that the WinSock DLL supports 2.0.*/
3182 /* Note that if the DLL supports versions greater */
3183 /* than 2.0 in addition to 2.0, it will still return */
3184 /* 2.0 in wVersion since that is the version we */
3187 if ( LOBYTE( wsaData.wVersion ) != 2 ||
3188 HIBYTE( wsaData.wVersion ) != 0 )
3190 /* Tell the user that we couldn't find a usable */
3196 /* The WinSock DLL is acceptable. Proceed. */
3197 #elif defined( HAVE_WINSOCK )
3199 if ( WSAStartup( 0x0101, &wsaData ) != 0 ) return -1;
3200 #endif /* ! HAVE_WINSOCK2 && ! HAVE_WINSOCK */
3208 #if defined( HAVE_WINSOCK2 ) || defined( HAVE_WINSOCK )
3210 #endif /* HAVE_WINSOCK2 || HAVE_WINSOCK */
3216 slap_sig_shutdown( int sig )
3218 int save_errno = errno;
3222 Debug(LDAP_DEBUG_TRACE, "slap_sig_shutdown: signal %d\n", sig, 0, 0);
3226 * If the NT Service Manager is controlling the server, we don't
3227 * want SIGBREAK to kill the server. For some strange reason,
3228 * SIGBREAK is generated when a user logs out.
3231 #if defined(HAVE_NT_SERVICE_MANAGER) && defined(SIGBREAK)
3232 if (is_NT_Service && sig == SIGBREAK) {
3235 #endif /* HAVE_NT_SERVICE_MANAGER && SIGBREAK */
3237 if (sig == SIGHUP && global_gentlehup && slapd_gentle_shutdown == 0) {
3238 slapd_gentle_shutdown = 1;
3245 for (i=0; i<slapd_daemon_threads; i++) {
3249 /* reinstall self */
3250 (void) SIGNAL_REINSTALL( sig, slap_sig_shutdown );
3256 slap_sig_wake( int sig )
3258 int save_errno = errno;
3262 /* reinstall self */
3263 (void) SIGNAL_REINSTALL( sig, slap_sig_wake );
3270 slapd_add_internal( ber_socket_t s, int isactive )
3272 slapd_add( s, isactive, NULL, -1 );
3276 slapd_get_listeners( void )
3278 /* Could return array with no listeners if !listening, but current
3279 * callers mostly look at the URLs. E.g. syncrepl uses this to
3280 * identify the server, which means it wants the startup arguments.
3282 return slap_listeners;
3285 /* Reject all incoming requests */
3287 slap_suspend_listeners( void )
3290 for (i=0; slap_listeners[i]; i++) {
3291 slap_listeners[i]->sl_mute = 1;
3292 listen( slap_listeners[i]->sl_sd, 0 );
3296 /* Resume after a suspend */
3298 slap_resume_listeners( void )
3301 for (i=0; slap_listeners[i]; i++) {
3302 slap_listeners[i]->sl_mute = 0;
3303 listen( slap_listeners[i]->sl_sd, SLAPD_LISTEN_BACKLOG );
3308 slap_wake_listener()
3313 /* return 0 on timeout, 1 on writer ready
3314 * -1 on general error
3317 slapd_wait_writer( ber_socket_t sd )
3321 struct timeval tv, *tvp;
3323 FD_ZERO( &writefds );
3324 FD_SET( slapd_ws_sockets[sd], &writefds );
3325 if ( global_writetimeout ) {
3326 tv.tv_sec = global_writetimeout;
3332 return select( 0, NULL, &writefds, NULL, tvp );
3335 int timeout = global_writetimeout ? global_writetimeout * 1000 : -1;
3338 fds.events = POLLOUT;
3340 return poll( &fds, 1, timeout );