2 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
4 * Copyright 1998-2007 The OpenLDAP Foundation.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted only as authorized by the OpenLDAP
11 * A copy of this license is available in the file LICENSE in the
12 * top-level directory of the distribution or, alternatively, at
13 * <http://www.OpenLDAP.org/license.html>.
15 /* Portions Copyright (c) 1995 Regents of the University of Michigan.
16 * All rights reserved.
18 * Redistribution and use in source and binary forms are permitted
19 * provided that this notice is preserved and that due credit is given
20 * to the University of Michigan at Ann Arbor. The name of the University
21 * may not be used to endorse or promote products derived from this
22 * software without specific prior written permission. This software
23 * is provided ``as is'' without express or implied warranty.
32 #include <ac/socket.h>
33 #include <ac/string.h>
35 #include <ac/unistd.h>
38 #include "ldap_pvt_thread.h"
43 #if defined(HAVE_SYS_EPOLL_H) && defined(HAVE_EPOLL)
44 # include <sys/epoll.h>
45 #elif defined(SLAP_X_DEVPOLL) && defined(HAVE_SYS_DEVPOLL_H) && defined(HAVE_DEVPOLL)
46 # include <sys/types.h>
47 # include <sys/stat.h>
49 # include <sys/devpoll.h>
50 #endif /* ! epoll && ! /dev/poll */
54 int allow_severity = LOG_INFO;
55 int deny_severity = LOG_NOTICE;
57 # define SLAP_STRING_UNKNOWN STRING_UNKNOWN
58 #else /* ! TCP Wrappers */
59 # define SLAP_STRING_UNKNOWN "unknown"
60 #endif /* ! TCP Wrappers */
63 # include <sys/stat.h>
64 /* this should go in <ldap.h> as soon as it is accepted */
65 # define LDAPI_MOD_URLEXT "x-mod"
66 #endif /* LDAP_PF_LOCAL */
69 int slap_inet4or6 = AF_UNSPEC;
71 int slap_inet4or6 = AF_INET;
76 ber_socket_t dtblsize;
77 slap_ssf_t local_ssf = LDAP_PVT_SASL_LOCAL_SSF;
78 struct runqueue_s slapd_rq;
80 Listener **slap_listeners = NULL;
82 #ifndef SLAPD_LISTEN_BACKLOG
83 #define SLAPD_LISTEN_BACKLOG 1024
84 #endif /* ! SLAPD_LISTEN_BACKLOG */
86 static ber_socket_t wake_sds[2];
89 static volatile int waking;
91 #define WAKE_LISTENER(w) do { \
92 if ((w) && ++waking < 5) { \
93 tcp_write( wake_sds[1], "0", 1 ); \
96 #else /* ! NO_THREADS */
97 #define WAKE_LISTENER(w) do { \
99 tcp_write( wake_sds[1], "0", 1 ); \
102 #endif /* ! NO_THREADS */
104 volatile sig_atomic_t slapd_shutdown = 0;
105 volatile sig_atomic_t slapd_gentle_shutdown = 0;
106 volatile sig_atomic_t slapd_abrupt_shutdown = 0;
108 static struct slap_daemon {
109 ldap_pvt_thread_mutex_t sd_mutex;
111 ldap_pvt_thread_mutex_t sd_tcpd_mutex;
112 #endif /* TCP Wrappers */
114 ber_socket_t sd_nactives;
117 #if defined(HAVE_EPOLL)
118 struct epoll_event *sd_epolls;
122 #elif defined(SLAP_X_DEVPOLL) && defined(HAVE_DEVPOLL)
124 struct pollfd *sd_pollfd;
129 #else /* ! epoll && ! /dev/poll */
131 /* In winsock, accept() returns values higher than dtblsize
132 so don't bother with this optimization */
134 #endif /* ! HAVE_WINSOCK */
138 #endif /* ! epoll && ! /dev/poll */
142 * NOTE: naming convention for macros:
144 * - SLAP_SOCK_* and SLAP_EVENT_* for public interface that deals
145 * with file descriptors and events respectively
147 * - SLAP_<type>_* for private interface; type by now is one of
148 * EPOLL, DEVPOLL, SELECT
150 * private interface should not be used in the code.
152 #if defined(HAVE_EPOLL)
153 /***************************************
154 * Use epoll infrastructure - epoll(4) *
155 ***************************************/
156 # define SLAP_EVENT_FNAME "epoll"
157 # define SLAP_EVENTS_ARE_INDEXED 0
158 # define SLAP_EPOLL_SOCK_IX(s) (slap_daemon.sd_index[(s)])
159 # define SLAP_EPOLL_SOCK_EP(s) (slap_daemon.sd_epolls[SLAP_EPOLL_SOCK_IX(s)])
160 # define SLAP_EPOLL_SOCK_EV(s) (SLAP_EPOLL_SOCK_EP(s).events)
161 # define SLAP_SOCK_IS_ACTIVE(s) (SLAP_EPOLL_SOCK_IX(s) != -1)
162 # define SLAP_SOCK_NOT_ACTIVE(s) (SLAP_EPOLL_SOCK_IX(s) == -1)
163 # define SLAP_EPOLL_SOCK_IS_SET(s, mode) (SLAP_EPOLL_SOCK_EV(s) & (mode))
165 # define SLAP_SOCK_IS_READ(s) SLAP_EPOLL_SOCK_IS_SET((s), EPOLLIN)
166 # define SLAP_SOCK_IS_WRITE(s) SLAP_EPOLL_SOCK_IS_SET((s), EPOLLOUT)
168 # define SLAP_EPOLL_SOCK_SET(s, mode) do { \
169 if ( (SLAP_EPOLL_SOCK_EV(s) & (mode)) != (mode) ) { \
170 SLAP_EPOLL_SOCK_EV(s) |= (mode); \
171 epoll_ctl( slap_daemon.sd_epfd, EPOLL_CTL_MOD, (s), \
172 &SLAP_EPOLL_SOCK_EP(s) ); \
176 # define SLAP_EPOLL_SOCK_CLR(s, mode) do { \
177 if ( (SLAP_EPOLL_SOCK_EV(s) & (mode)) ) { \
178 SLAP_EPOLL_SOCK_EV(s) &= ~(mode); \
179 epoll_ctl( slap_daemon.sd_epfd, EPOLL_CTL_MOD, s, \
180 &SLAP_EPOLL_SOCK_EP(s) ); \
184 # define SLAP_SOCK_SET_READ(s) SLAP_EPOLL_SOCK_SET(s, EPOLLIN)
185 # define SLAP_SOCK_SET_WRITE(s) SLAP_EPOLL_SOCK_SET(s, EPOLLOUT)
187 # define SLAP_SOCK_CLR_READ(s) SLAP_EPOLL_SOCK_CLR((s), EPOLLIN)
188 # define SLAP_SOCK_CLR_WRITE(s) SLAP_EPOLL_SOCK_CLR((s), EPOLLOUT)
190 # ifdef SLAP_LIGHTWEIGHT_DISPATCHER
191 # define SLAP_SOCK_SET_SUSPEND(s) \
192 ( slap_daemon.sd_suspend[SLAP_EPOLL_SOCK_IX(s)] = 1 )
193 # define SLAP_SOCK_CLR_SUSPEND(s) \
194 ( slap_daemon.sd_suspend[SLAP_EPOLL_SOCK_IX(s)] = 0 )
195 # define SLAP_SOCK_IS_SUSPEND(s) \
196 ( slap_daemon.sd_suspend[SLAP_EPOLL_SOCK_IX(s)] == 1 )
197 # endif /* SLAP_LIGHTWEIGHT_DISPATCHER */
199 # define SLAP_EPOLL_EVENT_CLR(i, mode) (revents[(i)].events &= ~(mode))
201 # define SLAP_EVENT_MAX slap_daemon.sd_nfds
203 /* If a Listener address is provided, store that as the epoll data.
204 * Otherwise, store the address of this socket's slot in the
205 * index array. If we can't do this add, the system is out of
206 * resources and we need to shutdown.
208 # define SLAP_SOCK_ADD(s, l) do { \
210 SLAP_EPOLL_SOCK_IX((s)) = slap_daemon.sd_nfds; \
211 SLAP_EPOLL_SOCK_EP((s)).data.ptr = (l) ? (l) : (void *)(&SLAP_EPOLL_SOCK_IX(s)); \
212 SLAP_EPOLL_SOCK_EV((s)) = EPOLLIN; \
213 rc = epoll_ctl(slap_daemon.sd_epfd, EPOLL_CTL_ADD, \
214 (s), &SLAP_EPOLL_SOCK_EP((s))); \
216 slap_daemon.sd_nfds++; \
218 Debug( LDAP_DEBUG_ANY, \
219 "daemon: epoll_ctl(ADD,fd=%d) failed, errno=%d, shutting down\n", \
221 slapd_shutdown = 2; \
225 # define SLAP_EPOLL_EV_LISTENER(ptr) \
226 (((int *)(ptr) >= slap_daemon.sd_index && \
227 (int *)(ptr) <= &slap_daemon.sd_index[dtblsize]) ? 0 : 1 )
229 # define SLAP_EPOLL_EV_PTRFD(ptr) (SLAP_EPOLL_EV_LISTENER(ptr) ? \
230 ((Listener *)ptr)->sl_sd : (int *)(ptr) - slap_daemon.sd_index)
232 # define SLAP_SOCK_DEL(s) do { \
233 int fd, rc, index = SLAP_EPOLL_SOCK_IX((s)); \
234 if ( index < 0 ) break; \
235 rc = epoll_ctl(slap_daemon.sd_epfd, EPOLL_CTL_DEL, \
236 (s), &SLAP_EPOLL_SOCK_EP((s))); \
237 slap_daemon.sd_epolls[index] = \
238 slap_daemon.sd_epolls[slap_daemon.sd_nfds-1]; \
239 fd = SLAP_EPOLL_EV_PTRFD(slap_daemon.sd_epolls[index].data.ptr); \
240 slap_daemon.sd_index[fd] = index; \
241 slap_daemon.sd_index[(s)] = -1; \
242 slap_daemon.sd_nfds--; \
245 # define SLAP_EVENT_CLR_READ(i) SLAP_EPOLL_EVENT_CLR((i), EPOLLIN)
246 # define SLAP_EVENT_CLR_WRITE(i) SLAP_EPOLL_EVENT_CLR((i), EPOLLOUT)
248 # define SLAP_EPOLL_EVENT_CHK(i, mode) (revents[(i)].events & mode)
250 # define SLAP_EVENT_IS_READ(i) SLAP_EPOLL_EVENT_CHK((i), EPOLLIN)
251 # define SLAP_EVENT_IS_WRITE(i) SLAP_EPOLL_EVENT_CHK((i), EPOLLOUT)
252 # define SLAP_EVENT_IS_LISTENER(i) SLAP_EPOLL_EV_LISTENER(revents[(i)].data.ptr)
253 # define SLAP_EVENT_LISTENER(i) ((Listener *)(revents[(i)].data.ptr))
255 # define SLAP_EVENT_FD(i) SLAP_EPOLL_EV_PTRFD(revents[(i)].data.ptr)
257 # define SLAP_SOCK_INIT do { \
258 slap_daemon.sd_epolls = ch_calloc(1, \
259 ( sizeof(struct epoll_event) * 2 \
260 + sizeof(int) ) * dtblsize * 2); \
261 slap_daemon.sd_index = (int *)&slap_daemon.sd_epolls[ 2 * dtblsize ]; \
262 slap_daemon.sd_epfd = epoll_create( dtblsize ); \
263 for ( i = 0; i < dtblsize; i++ ) slap_daemon.sd_index[i] = -1; \
266 # define SLAP_SOCK_DESTROY do { \
267 if ( slap_daemon.sd_epolls != NULL ) { \
268 ch_free( slap_daemon.sd_epolls ); \
269 slap_daemon.sd_epolls = NULL; \
270 slap_daemon.sd_index = NULL; \
271 close( slap_daemon.sd_epfd ); \
275 # define SLAP_EVENT_DECL struct epoll_event *revents
277 # define SLAP_EVENT_INIT do { \
278 revents = slap_daemon.sd_epolls + dtblsize; \
281 # define SLAP_EVENT_WAIT(tvp, nsp) do { \
282 *(nsp) = epoll_wait( slap_daemon.sd_epfd, revents, \
283 dtblsize, (tvp) ? (tvp)->tv_sec * 1000 : -1 ); \
286 #elif defined(SLAP_X_DEVPOLL) && defined(HAVE_DEVPOLL)
288 /*************************************************************
289 * Use Solaris' (>= 2.7) /dev/poll infrastructure - poll(7d) *
290 *************************************************************/
291 # define SLAP_EVENT_FNAME "/dev/poll"
292 # define SLAP_EVENTS_ARE_INDEXED 0
294 * - sd_index is used much like with epoll()
295 * - sd_l is maintained as an array containing the address
296 * of the listener; the index is the fd itself
297 * - sd_pollfd is used to keep track of what data has been
298 * registered in /dev/poll
300 # define SLAP_DEVPOLL_SOCK_IX(s) (slap_daemon.sd_index[(s)])
301 # define SLAP_DEVPOLL_SOCK_LX(s) (slap_daemon.sd_l[(s)])
302 # define SLAP_DEVPOLL_SOCK_EP(s) (slap_daemon.sd_pollfd[SLAP_DEVPOLL_SOCK_IX((s))])
303 # define SLAP_DEVPOLL_SOCK_FD(s) (SLAP_DEVPOLL_SOCK_EP((s)).fd)
304 # define SLAP_DEVPOLL_SOCK_EV(s) (SLAP_DEVPOLL_SOCK_EP((s)).events)
305 # define SLAP_SOCK_IS_ACTIVE(s) (SLAP_DEVPOLL_SOCK_IX((s)) != -1)
306 # define SLAP_SOCK_NOT_ACTIVE(s) (SLAP_DEVPOLL_SOCK_IX((s)) == -1)
307 # define SLAP_SOCK_IS_SET(s, mode) (SLAP_DEVPOLL_SOCK_EV((s)) & (mode))
309 # define SLAP_SOCK_IS_READ(s) SLAP_SOCK_IS_SET((s), POLLIN)
310 # define SLAP_SOCK_IS_WRITE(s) SLAP_SOCK_IS_SET((s), POLLOUT)
312 /* as far as I understand, any time we need to communicate with the kernel
313 * about the number and/or properties of a file descriptor we need it to
314 * wait for, we have to rewrite the whole set */
315 # define SLAP_DEVPOLL_WRITE_POLLFD(s, pfd, n, what, shdn) do { \
317 size_t size = (n) * sizeof( struct pollfd ); \
318 /* FIXME: use pwrite? */ \
319 rc = write( slap_daemon.sd_dpfd, (pfd), size ); \
320 if ( rc != size ) { \
321 Debug( LDAP_DEBUG_ANY, "daemon: " SLAP_EVENT_FNAME ": " \
322 "%s fd=%d failed errno=%d\n", \
323 (what), (s), errno ); \
325 slapd_shutdown = 2; \
330 # define SLAP_DEVPOLL_SOCK_SET(s, mode) do { \
331 Debug( LDAP_DEBUG_CONNS, "SLAP_SOCK_SET_%s(%d)=%d\n", \
332 (mode) == POLLIN ? "READ" : "WRITE", (s), \
333 ( (SLAP_DEVPOLL_SOCK_EV((s)) & (mode)) != (mode) ) ); \
334 if ( (SLAP_DEVPOLL_SOCK_EV((s)) & (mode)) != (mode) ) { \
336 SLAP_DEVPOLL_SOCK_EV((s)) |= (mode); \
337 pfd.fd = SLAP_DEVPOLL_SOCK_FD((s)); \
338 pfd.events = /* (mode) */ SLAP_DEVPOLL_SOCK_EV((s)); \
339 SLAP_DEVPOLL_WRITE_POLLFD((s), &pfd, 1, "SET", 0); \
343 # define SLAP_DEVPOLL_SOCK_CLR(s, mode) do { \
344 Debug( LDAP_DEBUG_CONNS, "SLAP_SOCK_CLR_%s(%d)=%d\n", \
345 (mode) == POLLIN ? "READ" : "WRITE", (s), \
346 ( (SLAP_DEVPOLL_SOCK_EV((s)) & (mode)) == (mode) ) ); \
347 if ((SLAP_DEVPOLL_SOCK_EV((s)) & (mode)) == (mode) ) { \
348 struct pollfd pfd[2]; \
349 SLAP_DEVPOLL_SOCK_EV((s)) &= ~(mode); \
350 pfd[0].fd = SLAP_DEVPOLL_SOCK_FD((s)); \
351 pfd[0].events = POLLREMOVE; \
352 pfd[1] = SLAP_DEVPOLL_SOCK_EP((s)); \
353 SLAP_DEVPOLL_WRITE_POLLFD((s), &pfd[0], 2, "CLR", 0); \
357 # define SLAP_SOCK_SET_READ(s) SLAP_DEVPOLL_SOCK_SET(s, POLLIN)
358 # define SLAP_SOCK_SET_WRITE(s) SLAP_DEVPOLL_SOCK_SET(s, POLLOUT)
360 # define SLAP_SOCK_CLR_READ(s) SLAP_DEVPOLL_SOCK_CLR((s), POLLIN)
361 # define SLAP_SOCK_CLR_WRITE(s) SLAP_DEVPOLL_SOCK_CLR((s), POLLOUT)
363 # ifdef SLAP_LIGHTWEIGHT_DISPATCHER
364 # define SLAP_SOCK_SET_SUSPEND(s) \
365 ( slap_daemon.sd_suspend[SLAP_DEVPOLL_SOCK_IX((s))] = 1 )
366 # define SLAP_SOCK_CLR_SUSPEND(s) \
367 ( slap_daemon.sd_suspend[SLAP_DEVPOLL_SOCK_IX((s))] = 0 )
368 # define SLAP_SOCK_IS_SUSPEND(s) \
369 ( slap_daemon.sd_suspend[SLAP_DEVPOLL_SOCK_IX((s))] == 1 )
370 # endif /* SLAP_LIGHTWEIGHT_DISPATCHER */
372 # define SLAP_DEVPOLL_EVENT_CLR(i, mode) (revents[(i)].events &= ~(mode))
374 # define SLAP_EVENT_MAX slap_daemon.sd_nfds
376 /* If a Listener address is provided, store that in the sd_l array.
377 * If we can't do this add, the system is out of resources and we
380 # define SLAP_SOCK_ADD(s, l) do { \
381 Debug( LDAP_DEBUG_CONNS, "SLAP_SOCK_ADD(%d, %p)\n", (s), (l), 0 ); \
382 SLAP_DEVPOLL_SOCK_IX((s)) = slap_daemon.sd_nfds; \
383 SLAP_DEVPOLL_SOCK_LX((s)) = (l); \
384 SLAP_DEVPOLL_SOCK_FD((s)) = (s); \
385 SLAP_DEVPOLL_SOCK_EV((s)) = POLLIN; \
386 SLAP_DEVPOLL_WRITE_POLLFD((s), &SLAP_DEVPOLL_SOCK_EP((s)), 1, "ADD", 1); \
387 slap_daemon.sd_nfds++; \
390 # define SLAP_DEVPOLL_EV_LISTENER(ptr) ((ptr) != NULL)
392 # define SLAP_SOCK_DEL(s) do { \
393 int fd, index = SLAP_DEVPOLL_SOCK_IX((s)); \
394 Debug( LDAP_DEBUG_CONNS, "SLAP_SOCK_DEL(%d)\n", (s), 0, 0 ); \
395 if ( index < 0 ) break; \
396 if ( index < slap_daemon.sd_nfds - 1 ) { \
397 struct pollfd pfd = slap_daemon.sd_pollfd[index]; \
398 fd = slap_daemon.sd_pollfd[slap_daemon.sd_nfds - 1].fd; \
399 slap_daemon.sd_pollfd[index] = slap_daemon.sd_pollfd[slap_daemon.sd_nfds - 1]; \
400 slap_daemon.sd_pollfd[slap_daemon.sd_nfds - 1] = pfd; \
401 slap_daemon.sd_index[fd] = index; \
403 slap_daemon.sd_index[(s)] = -1; \
404 slap_daemon.sd_pollfd[slap_daemon.sd_nfds - 1].events = POLLREMOVE; \
405 SLAP_DEVPOLL_WRITE_POLLFD((s), &slap_daemon.sd_pollfd[slap_daemon.sd_nfds - 1], 1, "DEL", 0); \
406 slap_daemon.sd_pollfd[slap_daemon.sd_nfds - 1].events = 0; \
407 slap_daemon.sd_nfds--; \
410 # define SLAP_EVENT_CLR_READ(i) SLAP_DEVPOLL_EVENT_CLR((i), POLLIN)
411 # define SLAP_EVENT_CLR_WRITE(i) SLAP_DEVPOLL_EVENT_CLR((i), POLLOUT)
413 # define SLAP_DEVPOLL_EVENT_CHK(i, mode) (revents[(i)].events & (mode))
415 # define SLAP_EVENT_FD(i) (revents[(i)].fd)
417 # define SLAP_EVENT_IS_READ(i) SLAP_DEVPOLL_EVENT_CHK((i), POLLIN)
418 # define SLAP_EVENT_IS_WRITE(i) SLAP_DEVPOLL_EVENT_CHK((i), POLLOUT)
419 # define SLAP_EVENT_IS_LISTENER(i) SLAP_DEVPOLL_EV_LISTENER(SLAP_DEVPOLL_SOCK_LX(SLAP_EVENT_FD((i))))
420 # define SLAP_EVENT_LISTENER(i) SLAP_DEVPOLL_SOCK_LX(SLAP_EVENT_FD((i)))
422 # define SLAP_SOCK_INIT do { \
423 slap_daemon.sd_pollfd = ch_calloc( 1, \
424 ( sizeof(struct pollfd) * 2 \
426 + sizeof( Listener * ) ) * dtblsize ); \
427 slap_daemon.sd_index = (int *)&slap_daemon.sd_pollfd[ 2 * dtblsize ]; \
428 slap_daemon.sd_l = (Listener **)&slap_daemon.sd_index[ dtblsize ]; \
429 slap_daemon.sd_dpfd = open( SLAP_EVENT_FNAME, O_RDWR ); \
430 if ( slap_daemon.sd_dpfd == -1 ) { \
431 Debug( LDAP_DEBUG_ANY, "daemon: " SLAP_EVENT_FNAME ": " \
432 "open(\"" SLAP_EVENT_FNAME "\") failed errno=%d\n", \
437 for ( i = 0; i < dtblsize; i++ ) { \
438 slap_daemon.sd_pollfd[i].fd = -1; \
439 slap_daemon.sd_index[i] = -1; \
443 # define SLAP_SOCK_DESTROY do { \
444 if ( slap_daemon.sd_pollfd != NULL ) { \
445 ch_free( slap_daemon.sd_pollfd ); \
446 slap_daemon.sd_pollfd = NULL; \
447 slap_daemon.sd_index = NULL; \
448 slap_daemon.sd_l = NULL; \
449 close( slap_daemon.sd_dpfd ); \
453 # define SLAP_EVENT_DECL struct pollfd *revents
455 # define SLAP_EVENT_INIT do { \
456 revents = &slap_daemon.sd_pollfd[ dtblsize ]; \
459 # define SLAP_EVENT_WAIT(tvp, nsp) do { \
460 struct dvpoll sd_dvpoll; \
461 sd_dvpoll.dp_timeout = (tvp) ? (tvp)->tv_sec * 1000 : -1; \
462 sd_dvpoll.dp_nfds = dtblsize; \
463 sd_dvpoll.dp_fds = revents; \
464 *(nsp) = ioctl( slap_daemon.sd_dpfd, DP_POLL, &sd_dvpoll ); \
467 #else /* ! epoll && ! /dev/poll */
469 /**************************************
470 * Use select system call - select(2) *
471 **************************************/
472 # define SLAP_EVENT_FNAME "select"
475 # define SLAP_EVENTS_ARE_INDEXED 1
476 # define SLAP_EVENT_DECL fd_set readfds, writefds
478 # define SLAP_EVENT_INIT do { \
479 AC_MEMCPY( &readfds, &slap_daemon.sd_readers, sizeof(fd_set) ); \
481 AC_MEMCPY( &writefds, &slap_daemon.sd_writers, sizeof(fd_set) ); \
483 FD_ZERO( &writefds ); \
488 # define SLAP_SELECT_CHK_SETSIZE do { \
489 if (dtblsize > FD_SETSIZE) dtblsize = FD_SETSIZE; \
491 # else /* ! FD_SETSIZE */
492 # define SLAP_SELECT_CHK_SETSIZE do { ; } while (0)
493 # endif /* ! FD_SETSIZE */
495 # define SLAP_SOCK_INIT do { \
496 SLAP_SELECT_CHK_SETSIZE; \
497 FD_ZERO(&slap_daemon.sd_actives); \
498 FD_ZERO(&slap_daemon.sd_readers); \
499 FD_ZERO(&slap_daemon.sd_writers); \
502 # define SLAP_SOCK_DESTROY
504 # define SLAP_SOCK_IS_ACTIVE(fd) FD_ISSET((fd), &slap_daemon.sd_actives)
505 # define SLAP_SOCK_IS_READ(fd) FD_ISSET((fd), &slap_daemon.sd_readers)
506 # define SLAP_SOCK_IS_WRITE(fd) FD_ISSET((fd), &slap_daemon.sd_writers)
508 # define SLAP_SOCK_NOT_ACTIVE(fd) (!SLAP_SOCK_IS_ACTIVE(fd) && \
509 !SLAP_SOCK_IS_READ(fd) && !SLAP_SOCK_IS_WRITE(fd))
512 # define SLAP_SOCK_SET_READ(fd) do { \
513 if (!SLAP_SOCK_IS_READ(fd)) { FD_SET((fd), &slap_daemon.sd_readers); } \
515 # define SLAP_SOCK_SET_WRITE(fd) do { \
516 if (!SLAP_SOCK_IS_WRITE(fd)) { FD_SET((fd), &slap_daemon.sd_writers); } \
519 # define SLAP_SELECT_ADDTEST(s)
520 # define SLAP_EVENT_MAX dtblsize
521 # else /* ! HAVE_WINSOCK */
522 # define SLAP_SOCK_SET_READ(fd) FD_SET((fd), &slap_daemon.sd_readers)
523 # define SLAP_SOCK_SET_WRITE(fd) FD_SET((fd), &slap_daemon.sd_writers)
525 # define SLAP_EVENT_MAX slap_daemon.sd_nfds
526 # define SLAP_SELECT_ADDTEST(s) do { \
527 if ((s) >= slap_daemon.sd_nfds) slap_daemon.sd_nfds = (s)+1; \
529 # endif /* ! HAVE_WINSOCK */
531 # define SLAP_SOCK_CLR_READ(fd) FD_CLR((fd), &slap_daemon.sd_readers)
532 # define SLAP_SOCK_CLR_WRITE(fd) FD_CLR((fd), &slap_daemon.sd_writers)
534 # define SLAP_SOCK_ADD(s, l) do { \
535 SLAP_SELECT_ADDTEST((s)); \
536 FD_SET((s), &slap_daemon.sd_actives); \
537 FD_SET((s), &slap_daemon.sd_readers); \
540 # define SLAP_SOCK_DEL(s) do { \
541 FD_CLR((s), &slap_daemon.sd_actives); \
542 FD_CLR((s), &slap_daemon.sd_readers); \
543 FD_CLR((s), &slap_daemon.sd_writers); \
546 # define SLAP_EVENT_IS_READ(fd) FD_ISSET((fd), &readfds)
547 # define SLAP_EVENT_IS_WRITE(fd) FD_ISSET((fd), &writefds)
549 # define SLAP_EVENT_CLR_READ(fd) FD_CLR((fd), &readfds)
550 # define SLAP_EVENT_CLR_WRITE(fd) FD_CLR((fd), &writefds)
552 # define SLAP_EVENT_WAIT(tvp, nsp) do { \
553 *(nsp) = select( SLAP_EVENT_MAX, &readfds, \
554 nwriters > 0 ? &writefds : NULL, NULL, (tvp) ); \
556 #endif /* ! epoll && ! /dev/poll */
560 * SLP related functions
564 #define LDAP_SRVTYPE_PREFIX "service:ldap://"
565 #define LDAPS_SRVTYPE_PREFIX "service:ldaps://"
566 static char** slapd_srvurls = NULL;
567 static SLPHandle slapd_hslp = 0;
568 int slapd_register_slp = 0;
569 const char *slapd_slp_attrs = NULL;
571 static SLPError slapd_slp_cookie;
574 slapd_slp_init( const char* urls )
579 slapd_srvurls = ldap_str2charray( urls, " " );
581 if ( slapd_srvurls == NULL ) return;
583 /* find and expand INADDR_ANY URLs */
584 for ( i = 0; slapd_srvurls[i] != NULL; i++ ) {
585 if ( strcmp( slapd_srvurls[i], "ldap:///" ) == 0 ) {
586 char *host = ldap_pvt_get_fqdn( NULL );
587 if ( host != NULL ) {
588 slapd_srvurls[i] = (char *) ch_realloc( slapd_srvurls[i],
590 sizeof( LDAP_SRVTYPE_PREFIX ) );
591 strcpy( lutil_strcopy(slapd_srvurls[i],
592 LDAP_SRVTYPE_PREFIX ), host );
597 } else if ( strcmp( slapd_srvurls[i], "ldaps:///" ) == 0 ) {
598 char *host = ldap_pvt_get_fqdn( NULL );
599 if ( host != NULL ) {
600 slapd_srvurls[i] = (char *) ch_realloc( slapd_srvurls[i],
602 sizeof( LDAPS_SRVTYPE_PREFIX ) );
603 strcpy( lutil_strcopy(slapd_srvurls[i],
604 LDAPS_SRVTYPE_PREFIX ), host );
611 /* open the SLP handle */
612 err = SLPOpen( "en", 0, &slapd_hslp );
614 if ( err != SLP_OK ) {
615 Debug( LDAP_DEBUG_CONNS, "daemon: SLPOpen() failed with %ld\n",
621 slapd_slp_deinit( void )
623 if ( slapd_srvurls == NULL ) return;
625 ldap_charray_free( slapd_srvurls );
626 slapd_srvurls = NULL;
628 /* close the SLP handle */
629 SLPClose( slapd_hslp );
638 /* return the error code in the cookie */
639 *(SLPError*)cookie = errcode;
648 if ( slapd_srvurls == NULL ) return;
650 for ( i = 0; slapd_srvurls[i] != NULL; i++ ) {
651 if ( strncmp( slapd_srvurls[i], LDAP_SRVTYPE_PREFIX,
652 sizeof( LDAP_SRVTYPE_PREFIX ) - 1 ) == 0 ||
653 strncmp( slapd_srvurls[i], LDAPS_SRVTYPE_PREFIX,
654 sizeof( LDAPS_SRVTYPE_PREFIX ) - 1 ) == 0 )
656 err = SLPReg( slapd_hslp,
658 SLP_LIFETIME_MAXIMUM,
660 (slapd_slp_attrs) ? slapd_slp_attrs : "",
665 if ( err != SLP_OK || slapd_slp_cookie != SLP_OK ) {
666 Debug( LDAP_DEBUG_CONNS,
667 "daemon: SLPReg(%s) failed with %ld, cookie = %ld\n",
668 slapd_srvurls[i], (long)err, (long)slapd_slp_cookie );
675 slapd_slp_dereg( void )
680 if ( slapd_srvurls == NULL ) return;
682 for ( i = 0; slapd_srvurls[i] != NULL; i++ ) {
683 err = SLPDereg( slapd_hslp,
688 if ( err != SLP_OK || slapd_slp_cookie != SLP_OK ) {
689 Debug( LDAP_DEBUG_CONNS,
690 "daemon: SLPDereg(%s) failed with %ld, cookie = %ld\n",
691 slapd_srvurls[i], (long)err, (long)slapd_slp_cookie );
695 #endif /* HAVE_SLP */
698 * Add a descriptor to daemon control
700 * If isactive, the descriptor is a live server session and is subject
701 * to idletimeout control. Otherwise, the descriptor is a passive
702 * listener or an outbound client session, and not subject to
703 * idletimeout. The underlying event handler may record the Listener
704 * argument to differentiate Listener's from real sessions.
707 slapd_add( ber_socket_t s, int isactive, Listener *sl )
709 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
711 assert( SLAP_SOCK_NOT_ACTIVE(s) );
713 if ( isactive ) slap_daemon.sd_nactives++;
715 SLAP_SOCK_ADD(s, sl);
717 Debug( LDAP_DEBUG_CONNS, "daemon: added %ldr%s listener=%p\n",
718 (long) s, isactive ? " (active)" : "", (void *)sl );
720 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
722 #ifdef SLAP_LIGHTWEIGHT_DISPATCHER
724 #endif /* SLAP_LIGHTWEIGHT_DISPATCHER */
731 slapd_sd_lock( void )
733 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
740 slapd_sd_unlock( void )
742 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
746 * Remove the descriptor from daemon control
760 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
762 assert( SLAP_SOCK_IS_ACTIVE( s ));
764 if ( wasactive ) slap_daemon.sd_nactives--;
766 waswriter = SLAP_SOCK_IS_WRITE(s);
767 wasreader = SLAP_SOCK_IS_READ(s);
769 Debug( LDAP_DEBUG_CONNS, "daemon: removing %ld%s%s\n",
771 wasreader ? "r" : "",
772 waswriter ? "w" : "" );
774 if ( waswriter ) slap_daemon.sd_nwriters--;
779 ber_sockbuf_free(sb);
781 /* If we ran out of file descriptors, we dropped a listener from
782 * the select() loop. Now that we're removing a session from our
783 * control, we can try to resume a dropped listener to use.
787 for ( i = 0; slap_listeners[i] != NULL; i++ ) {
788 Listener *lr = slap_listeners[i];
790 if ( lr->sl_sd == AC_SOCKET_INVALID ) continue;
791 if ( lr->sl_sd == s ) continue;
798 /* Walked the entire list without enabling anything; emfile
799 * counter is stale. Reset it.
801 if ( slap_listeners[i] == NULL ) emfile = 0;
803 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
804 WAKE_LISTENER(wake || slapd_gentle_shutdown == 2);
808 slapd_clr_write( ber_socket_t s, int wake )
810 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
812 assert( SLAP_SOCK_IS_ACTIVE( s ));
814 if ( SLAP_SOCK_IS_WRITE( s )) {
815 SLAP_SOCK_CLR_WRITE( s );
816 slap_daemon.sd_nwriters--;
819 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
824 slapd_set_write( ber_socket_t s, int wake )
826 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
828 assert( SLAP_SOCK_IS_ACTIVE( s ));
830 if ( !SLAP_SOCK_IS_WRITE( s )) {
831 SLAP_SOCK_SET_WRITE( s );
832 slap_daemon.sd_nwriters++;
835 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
840 slapd_clr_read( ber_socket_t s, int wake )
843 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
845 if ( SLAP_SOCK_IS_ACTIVE( s )) {
846 SLAP_SOCK_CLR_READ( s );
849 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
856 slapd_set_read( ber_socket_t s, int wake )
858 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
860 assert( SLAP_SOCK_IS_ACTIVE( s ));
861 if (!SLAP_SOCK_IS_READ( s )) SLAP_SOCK_SET_READ( s );
863 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
868 slapd_close( ber_socket_t s )
870 Debug( LDAP_DEBUG_CONNS, "daemon: closing %ld\n",
876 slap_free_listener_addresses( struct sockaddr **sal )
878 struct sockaddr **sap;
879 if (sal == NULL) return;
880 for (sap = sal; *sap != NULL; sap++) ch_free(*sap);
884 #if defined(LDAP_PF_LOCAL) || defined(SLAP_X_LISTENER_MOD)
893 assert( exts != NULL );
894 assert( perms != NULL );
895 assert( crit != NULL );
898 for ( i = 0; exts[ i ]; i++ ) {
899 char *type = exts[ i ];
902 if ( type[ 0 ] == '!' ) {
907 if ( strncasecmp( type, LDAPI_MOD_URLEXT "=",
908 sizeof(LDAPI_MOD_URLEXT "=") - 1 ) == 0 )
910 char *value = type + ( sizeof(LDAPI_MOD_URLEXT "=") - 1 );
914 switch (strlen(value)) {
916 /* skip leading '0' */
917 if ( value[ 0 ] != '0' ) return LDAP_OTHER;
921 for ( j = 0; j < 3; j++) {
924 v = value[ j ] - '0';
926 if ( v < 0 || v > 7 ) return LDAP_OTHER;
933 for ( j = 1; j < 10; j++ ) {
934 static mode_t m[] = { 0,
935 S_IRUSR, S_IWUSR, S_IXUSR,
936 S_IRGRP, S_IWGRP, S_IXGRP,
937 S_IROTH, S_IWOTH, S_IXOTH
939 static char c[] = "-rwxrwxrwx";
941 if ( value[ j ] == c[ j ] ) {
944 } else if ( value[ j ] != '-' ) {
963 #endif /* LDAP_PF_LOCAL || SLAP_X_LISTENER_MOD */
965 /* port = 0 indicates AF_LOCAL */
967 slap_get_listener_addresses(
970 struct sockaddr ***sal )
972 struct sockaddr **sap;
976 *sal = ch_malloc(2 * sizeof(void *));
977 if (*sal == NULL) return -1;
980 *sap = ch_malloc(sizeof(struct sockaddr_un));
981 if (*sap == NULL) goto errexit;
985 (sizeof(((struct sockaddr_un *)*sap)->sun_path) - 1) )
987 Debug( LDAP_DEBUG_ANY,
988 "daemon: domain socket path (%s) too long in URL",
993 (void)memset( (void *)*sap, '\0', sizeof(struct sockaddr_un) );
994 (*sap)->sa_family = AF_LOCAL;
995 strcpy( ((struct sockaddr_un *)*sap)->sun_path, host );
997 #endif /* LDAP_PF_LOCAL */
999 #ifdef HAVE_GETADDRINFO
1000 struct addrinfo hints, *res, *sai;
1004 memset( &hints, '\0', sizeof(hints) );
1005 hints.ai_flags = AI_PASSIVE;
1006 hints.ai_socktype = SOCK_STREAM;
1007 hints.ai_family = slap_inet4or6;
1008 snprintf(serv, sizeof serv, "%d", port);
1010 if ( (err = getaddrinfo(host, serv, &hints, &res)) ) {
1011 Debug( LDAP_DEBUG_ANY, "daemon: getaddrinfo() failed: %s\n",
1012 AC_GAI_STRERROR(err), 0, 0);
1017 for (n=2; (sai = sai->ai_next) != NULL; n++) {
1020 *sal = ch_calloc(n, sizeof(void *));
1021 if (*sal == NULL) return -1;
1026 for ( sai=res; sai; sai=sai->ai_next ) {
1027 if( sai->ai_addr == NULL ) {
1028 Debug( LDAP_DEBUG_ANY, "slap_get_listener_addresses: "
1029 "getaddrinfo ai_addr is NULL?\n", 0, 0, 0 );
1034 switch (sai->ai_family) {
1035 # ifdef LDAP_PF_INET6
1037 *sap = ch_malloc(sizeof(struct sockaddr_in6));
1042 *(struct sockaddr_in6 *)*sap =
1043 *((struct sockaddr_in6 *)sai->ai_addr);
1045 # endif /* LDAP_PF_INET6 */
1047 *sap = ch_malloc(sizeof(struct sockaddr_in));
1052 *(struct sockaddr_in *)*sap =
1053 *((struct sockaddr_in *)sai->ai_addr);
1061 (*sap)->sa_family = sai->ai_family;
1069 #else /* ! HAVE_GETADDRINFO */
1072 struct hostent *he = NULL;
1074 if ( host == NULL ) {
1075 in.s_addr = htonl(INADDR_ANY);
1077 } else if ( !inet_aton( host, &in ) ) {
1078 he = gethostbyname( host );
1080 Debug( LDAP_DEBUG_ANY,
1081 "daemon: invalid host %s", host, 0, 0);
1084 for (n = 0; he->h_addr_list[n]; n++) /* empty */;
1087 *sal = ch_malloc((n+1) * sizeof(void *));
1088 if (*sal == NULL) return -1;
1091 for ( i = 0; i<n; i++ ) {
1092 sap[i] = ch_malloc(sizeof(struct sockaddr_in));
1093 if (*sap == NULL) goto errexit;
1095 (void)memset( (void *)sap[i], '\0', sizeof(struct sockaddr_in) );
1096 sap[i]->sa_family = AF_INET;
1097 ((struct sockaddr_in *)sap[i])->sin_port = htons(port);
1098 AC_MEMCPY( &((struct sockaddr_in *)sap[i])->sin_addr,
1099 he ? (struct in_addr *)he->h_addr_list[i] : &in,
1100 sizeof(struct in_addr) );
1103 #endif /* ! HAVE_GETADDRINFO */
1109 slap_free_listener_addresses(*sal);
1123 unsigned short port;
1124 int err, addrlen = 0;
1125 struct sockaddr **sal, **psal;
1126 int socktype = SOCK_STREAM; /* default to COTS */
1128 #if defined(LDAP_PF_LOCAL) || defined(SLAP_X_LISTENER_MOD)
1133 #endif /* LDAP_PF_LOCAL || SLAP_X_LISTENER_MOD */
1135 rc = ldap_url_parse( url, &lud );
1137 if( rc != LDAP_URL_SUCCESS ) {
1138 Debug( LDAP_DEBUG_ANY,
1139 "daemon: listen URL \"%s\" parse error=%d\n",
1144 l.sl_url.bv_val = NULL;
1146 #ifdef SLAP_LIGHTWEIGHT_DISPATCHER
1148 #endif /* SLAP_LIGHTWEIGHT_DISPATCHER */
1151 if( ldap_pvt_url_scheme2tls( lud->lud_scheme ) ) {
1152 Debug( LDAP_DEBUG_ANY, "daemon: TLS not supported (%s)\n",
1154 ldap_free_urldesc( lud );
1158 if(! lud->lud_port ) lud->lud_port = LDAP_PORT;
1160 #else /* HAVE_TLS */
1161 l.sl_is_tls = ldap_pvt_url_scheme2tls( lud->lud_scheme );
1163 if(! lud->lud_port ) {
1164 lud->lud_port = l.sl_is_tls ? LDAPS_PORT : LDAP_PORT;
1166 #endif /* HAVE_TLS */
1168 port = (unsigned short) lud->lud_port;
1170 tmp = ldap_pvt_url_scheme2proto(lud->lud_scheme);
1171 if ( tmp == LDAP_PROTO_IPC ) {
1172 #ifdef LDAP_PF_LOCAL
1173 if ( lud->lud_host == NULL || lud->lud_host[0] == '\0' ) {
1174 err = slap_get_listener_addresses(LDAPI_SOCK, 0, &sal);
1176 err = slap_get_listener_addresses(lud->lud_host, 0, &sal);
1178 #else /* ! LDAP_PF_LOCAL */
1180 Debug( LDAP_DEBUG_ANY, "daemon: URL scheme not supported: %s",
1182 ldap_free_urldesc( lud );
1184 #endif /* ! LDAP_PF_LOCAL */
1186 if( lud->lud_host == NULL || lud->lud_host[0] == '\0'
1187 || strcmp(lud->lud_host, "*") == 0 )
1189 err = slap_get_listener_addresses(NULL, port, &sal);
1191 err = slap_get_listener_addresses(lud->lud_host, port, &sal);
1195 #ifdef LDAP_CONNECTIONLESS
1196 l.sl_is_udp = ( tmp == LDAP_PROTO_UDP );
1197 #endif /* LDAP_CONNECTIONLESS */
1199 #if defined(LDAP_PF_LOCAL) || defined(SLAP_X_LISTENER_MOD)
1200 if ( lud->lud_exts ) {
1201 err = get_url_perms( lud->lud_exts, &l.sl_perms, &crit );
1203 l.sl_perms = S_IRWXU | S_IRWXO;
1205 #endif /* LDAP_PF_LOCAL || SLAP_X_LISTENER_MOD */
1207 ldap_free_urldesc( lud );
1208 if ( err ) return -1;
1210 /* If we got more than one address returned, we need to make space
1211 * for it in the slap_listeners array.
1213 for ( num=0; sal[num]; num++ ) /* empty */;
1215 *listeners += num-1;
1216 slap_listeners = ch_realloc( slap_listeners,
1217 (*listeners + 1) * sizeof(Listener *) );
1221 while ( *sal != NULL ) {
1223 switch( (*sal)->sa_family ) {
1227 #ifdef LDAP_PF_INET6
1231 #endif /* LDAP_PF_INET6 */
1232 #ifdef LDAP_PF_LOCAL
1236 #endif /* LDAP_PF_LOCAL */
1242 #ifdef LDAP_CONNECTIONLESS
1243 if( l.sl_is_udp ) socktype = SOCK_DGRAM;
1244 #endif /* LDAP_CONNECTIONLESS */
1246 l.sl_sd = socket( (*sal)->sa_family, socktype, 0);
1247 if ( l.sl_sd == AC_SOCKET_INVALID ) {
1248 int err = sock_errno();
1249 Debug( LDAP_DEBUG_ANY,
1250 "daemon: %s socket() failed errno=%d (%s)\n",
1251 af, err, sock_errstr(err) );
1256 #ifndef HAVE_WINSOCK
1257 if ( l.sl_sd >= dtblsize ) {
1258 Debug( LDAP_DEBUG_ANY,
1259 "daemon: listener descriptor %ld is too great %ld\n",
1260 (long) l.sl_sd, (long) dtblsize, 0 );
1261 tcp_close( l.sl_sd );
1265 #endif /* ! HAVE_WINSOCK */
1267 #ifdef LDAP_PF_LOCAL
1268 if ( (*sal)->sa_family == AF_LOCAL ) {
1269 unlink( ((struct sockaddr_un *)*sal)->sun_path );
1271 #endif /* LDAP_PF_LOCAL */
1274 /* enable address reuse */
1276 rc = setsockopt( l.sl_sd, SOL_SOCKET, SO_REUSEADDR,
1277 (char *) &tmp, sizeof(tmp) );
1278 if ( rc == AC_SOCKET_ERROR ) {
1279 int err = sock_errno();
1280 Debug( LDAP_DEBUG_ANY, "slapd(%ld): "
1281 "setsockopt(SO_REUSEADDR) failed errno=%d (%s)\n",
1282 (long) l.sl_sd, err, sock_errstr(err) );
1284 #endif /* SO_REUSEADDR */
1287 switch( (*sal)->sa_family ) {
1289 addrlen = sizeof(struct sockaddr_in);
1291 #ifdef LDAP_PF_INET6
1294 /* Try to use IPv6 sockets for IPv6 only */
1296 rc = setsockopt( l.sl_sd, IPPROTO_IPV6, IPV6_V6ONLY,
1297 (char *) &tmp, sizeof(tmp) );
1298 if ( rc == AC_SOCKET_ERROR ) {
1299 int err = sock_errno();
1300 Debug( LDAP_DEBUG_ANY, "slapd(%ld): "
1301 "setsockopt(IPV6_V6ONLY) failed errno=%d (%s)\n",
1302 (long) l.sl_sd, err, sock_errstr(err) );
1304 #endif /* IPV6_V6ONLY */
1305 addrlen = sizeof(struct sockaddr_in6);
1307 #endif /* LDAP_PF_INET6 */
1309 #ifdef LDAP_PF_LOCAL
1314 setsockopt( l.sl_sd, 0, LOCAL_CREDS, &one, sizeof( one ) );
1316 #endif /* LOCAL_CREDS */
1318 addrlen = sizeof( struct sockaddr_un );
1320 #endif /* LDAP_PF_LOCAL */
1323 #ifdef LDAP_PF_LOCAL
1324 /* create socket with all permissions set for those systems
1325 * that honor permissions on sockets (e.g. Linux); typically,
1326 * only write is required. To exploit filesystem permissions,
1327 * place the socket in a directory and use directory's
1328 * permissions. Need write perms to the directory to
1329 * create/unlink the socket; likely need exec perms to access
1330 * the socket (ITS#4709) */
1334 if ( (*sal)->sa_family == AF_LOCAL ) {
1335 old_umask = umask( 0 );
1337 #endif /* LDAP_PF_LOCAL */
1338 rc = bind( l.sl_sd, *sal, addrlen );
1339 #ifdef LDAP_PF_LOCAL
1340 if ( (*sal)->sa_family == AF_LOCAL ) {
1344 #endif /* LDAP_PF_LOCAL */
1347 Debug( LDAP_DEBUG_ANY,
1348 "daemon: bind(%ld) failed errno=%d (%s)\n",
1349 (long)l.sl_sd, err, sock_errstr( err ) );
1350 tcp_close( l.sl_sd );
1355 switch ( (*sal)->sa_family ) {
1356 #ifdef LDAP_PF_LOCAL
1358 char *addr = ((struct sockaddr_un *)*sal)->sun_path;
1359 l.sl_name.bv_len = strlen(addr) + sizeof("PATH=") - 1;
1360 l.sl_name.bv_val = ber_memalloc( l.sl_name.bv_len + 1 );
1361 snprintf( l.sl_name.bv_val, l.sl_name.bv_len + 1,
1364 #endif /* LDAP_PF_LOCAL */
1368 #if defined( HAVE_GETADDRINFO ) && defined( HAVE_INET_NTOP )
1369 char addr[INET_ADDRSTRLEN];
1370 inet_ntop( AF_INET, &((struct sockaddr_in *)*sal)->sin_addr,
1371 addr, sizeof(addr) );
1373 #else /* ! HAVE_GETADDRINFO || ! HAVE_INET_NTOP */
1374 s = inet_ntoa( ((struct sockaddr_in *) *sal)->sin_addr );
1375 #endif /* ! HAVE_GETADDRINFO || ! HAVE_INET_NTOP */
1376 port = ntohs( ((struct sockaddr_in *)*sal) ->sin_port );
1378 ber_memalloc( sizeof("IP=255.255.255.255:65535") );
1379 snprintf( l.sl_name.bv_val, sizeof("IP=255.255.255.255:65535"),
1381 s != NULL ? s : SLAP_STRING_UNKNOWN, port );
1382 l.sl_name.bv_len = strlen( l.sl_name.bv_val );
1385 #ifdef LDAP_PF_INET6
1387 char addr[INET6_ADDRSTRLEN];
1388 inet_ntop( AF_INET6, &((struct sockaddr_in6 *)*sal)->sin6_addr,
1390 port = ntohs( ((struct sockaddr_in6 *)*sal)->sin6_port );
1391 l.sl_name.bv_len = strlen(addr) + sizeof("IP=[]:65535");
1392 l.sl_name.bv_val = ber_memalloc( l.sl_name.bv_len );
1393 snprintf( l.sl_name.bv_val, l.sl_name.bv_len, "IP=[%s]:%d",
1395 l.sl_name.bv_len = strlen( l.sl_name.bv_val );
1397 #endif /* LDAP_PF_INET6 */
1400 Debug( LDAP_DEBUG_ANY, "daemon: unsupported address family (%d)\n",
1401 (int) (*sal)->sa_family, 0, 0 );
1405 AC_MEMCPY(&l.sl_sa, *sal, addrlen);
1406 ber_str2bv( url, 0, 1, &l.sl_url);
1407 li = ch_malloc( sizeof( Listener ) );
1409 slap_listeners[*cur] = li;
1414 slap_free_listener_addresses(psal);
1416 if ( l.sl_url.bv_val == NULL ) {
1417 Debug( LDAP_DEBUG_TRACE,
1418 "slap_open_listener: failed on %s\n", url, 0, 0 );
1422 Debug( LDAP_DEBUG_TRACE, "daemon: listener initialized %s\n",
1423 l.sl_url.bv_val, 0, 0 );
1427 static int sockinit(void);
1428 static int sockdestroy(void);
1431 slapd_daemon_init( const char *urls )
1436 Debug( LDAP_DEBUG_ARGS, "daemon_init: %s\n",
1437 urls ? urls : "<null>", 0, 0 );
1439 ldap_pvt_thread_mutex_init( &slap_daemon.sd_mutex );
1441 ldap_pvt_thread_mutex_init( &slap_daemon.sd_tcpd_mutex );
1442 #endif /* TCP Wrappers */
1444 if( (rc = sockinit()) != 0 ) return rc;
1447 dtblsize = sysconf( _SC_OPEN_MAX );
1448 #elif HAVE_GETDTABLESIZE
1449 dtblsize = getdtablesize();
1450 #else /* ! HAVE_SYSCONF && ! HAVE_GETDTABLESIZE */
1451 dtblsize = FD_SETSIZE;
1452 #endif /* ! HAVE_SYSCONF && ! HAVE_GETDTABLESIZE */
1454 /* open a pipe (or something equivalent connected to itself).
1455 * we write a byte on this fd whenever we catch a signal. The main
1456 * loop will be select'ing on this socket, and will wake up when
1457 * this byte arrives.
1459 if( (rc = lutil_pair( wake_sds )) < 0 ) {
1460 Debug( LDAP_DEBUG_ANY,
1461 "daemon: lutil_pair() failed rc=%d\n", rc, 0, 0 );
1467 if( urls == NULL ) urls = "ldap:///";
1469 u = ldap_str2charray( urls, " " );
1471 if( u == NULL || u[0] == NULL ) {
1472 Debug( LDAP_DEBUG_ANY, "daemon_init: no urls (%s) provided.\n",
1475 ldap_charray_free( u );
1479 for( i=0; u[i] != NULL; i++ ) {
1480 Debug( LDAP_DEBUG_TRACE, "daemon_init: listen on %s\n",
1485 Debug( LDAP_DEBUG_ANY, "daemon_init: no listeners to open (%s)\n",
1487 ldap_charray_free( u );
1491 Debug( LDAP_DEBUG_TRACE, "daemon_init: %d listeners to open...\n",
1493 slap_listeners = ch_malloc( (i+1)*sizeof(Listener *) );
1495 for(n = 0, j = 0; u[n]; n++ ) {
1496 if ( slap_open_listener( u[n], &i, &j ) ) {
1497 ldap_charray_free( u );
1501 slap_listeners[j] = NULL;
1503 Debug( LDAP_DEBUG_TRACE, "daemon_init: %d listeners opened\n",
1508 if( slapd_register_slp ) {
1509 slapd_slp_init( urls );
1512 #endif /* HAVE_SLP */
1514 ldap_charray_free( u );
1521 slapd_daemon_destroy( void )
1523 connections_destroy();
1524 tcp_close( wake_sds[1] );
1525 tcp_close( wake_sds[0] );
1529 if( slapd_register_slp ) {
1533 #endif /* HAVE_SLP */
1536 ldap_pvt_thread_mutex_destroy( &slap_daemon.sd_tcpd_mutex );
1537 #endif /* TCP Wrappers */
1539 ldap_pvt_thread_mutex_destroy( &slap_daemon.sd_mutex );
1550 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1551 Listener *lr = slap_listeners[l];
1553 if ( lr->sl_sd != AC_SOCKET_INVALID ) {
1554 if ( remove ) slapd_remove( lr->sl_sd, NULL, 0, 0, 0 );
1556 #ifdef LDAP_PF_LOCAL
1557 if ( lr->sl_sa.sa_addr.sa_family == AF_LOCAL ) {
1558 unlink( lr->sl_sa.sa_un_addr.sun_path );
1560 #endif /* LDAP_PF_LOCAL */
1562 slapd_close( lr->sl_sd );
1565 if ( lr->sl_url.bv_val ) {
1566 ber_memfree( lr->sl_url.bv_val );
1569 if ( lr->sl_name.bv_val ) {
1570 ber_memfree( lr->sl_name.bv_val );
1574 slap_listeners[l] = NULL;
1585 socklen_t len = sizeof(from);
1588 struct berval authid = BER_BVNULL;
1589 #ifdef SLAPD_RLOOKUPS
1590 char hbuf[NI_MAXHOST];
1591 #endif /* SLAPD_RLOOKUPS */
1593 char *dnsname = NULL;
1594 char *peeraddr = NULL;
1595 #ifdef LDAP_PF_LOCAL
1596 char peername[MAXPATHLEN + sizeof("PATH=")];
1597 #elif defined(LDAP_PF_INET6)
1598 char peername[sizeof("IP=[ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff]:65535")];
1599 #else /* ! LDAP_PF_LOCAL && ! LDAP_PF_INET6 */
1600 char peername[sizeof("IP=255.255.255.255:65336")];
1601 #endif /* LDAP_PF_LOCAL */
1603 Debug( LDAP_DEBUG_TRACE,
1604 ">>> slap_listener(%s)\n",
1605 sl->sl_url.bv_val, 0, 0 );
1609 #ifdef LDAP_CONNECTIONLESS
1610 if ( sl->sl_is_udp ) return 1;
1611 #endif /* LDAP_CONNECTIONLESS */
1613 # ifdef LDAP_PF_LOCAL
1614 /* FIXME: apparently accept doesn't fill
1615 * the sun_path sun_path member */
1616 from.sa_un_addr.sun_path[0] = '\0';
1617 # endif /* LDAP_PF_LOCAL */
1619 s = accept( sl->sl_sd, (struct sockaddr *) &from, &len );
1621 #ifdef SLAP_LIGHTWEIGHT_DISPATCHER
1622 /* Resume the listener FD to allow concurrent-processing of
1623 * additional incoming connections.
1627 #endif /* SLAP_LIGHTWEIGHT_DISPATCHER */
1629 if ( s == AC_SOCKET_INVALID ) {
1630 int err = sock_errno();
1641 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
1643 /* Stop listening until an existing session closes */
1645 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
1648 Debug( LDAP_DEBUG_ANY,
1649 "daemon: accept(%ld) failed errno=%d (%s)\n",
1650 (long) sl->sl_sd, err, sock_errstr(err) );
1651 ldap_pvt_thread_yield();
1655 #ifndef HAVE_WINSOCK
1656 /* make sure descriptor number isn't too great */
1657 if ( s >= dtblsize ) {
1658 Debug( LDAP_DEBUG_ANY,
1659 "daemon: %ld beyond descriptor table size %ld\n",
1660 (long) s, (long) dtblsize, 0 );
1663 ldap_pvt_thread_yield();
1666 #endif /* ! HAVE_WINSOCK */
1669 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
1670 /* newly accepted stream should not be in any of the FD SETS */
1671 assert( SLAP_SOCK_NOT_ACTIVE( s ));
1672 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
1673 #endif /* LDAP_DEBUG */
1675 #if defined( SO_KEEPALIVE ) || defined( TCP_NODELAY )
1676 #ifdef LDAP_PF_LOCAL
1677 /* for IPv4 and IPv6 sockets only */
1678 if ( from.sa_addr.sa_family != AF_LOCAL )
1679 #endif /* LDAP_PF_LOCAL */
1684 /* enable keep alives */
1686 rc = setsockopt( s, SOL_SOCKET, SO_KEEPALIVE,
1687 (char *) &tmp, sizeof(tmp) );
1688 if ( rc == AC_SOCKET_ERROR ) {
1689 int err = sock_errno();
1690 Debug( LDAP_DEBUG_ANY,
1691 "slapd(%ld): setsockopt(SO_KEEPALIVE) failed "
1692 "errno=%d (%s)\n", (long) s, err, sock_errstr(err) );
1694 #endif /* SO_KEEPALIVE */
1696 /* enable no delay */
1698 rc = setsockopt( s, IPPROTO_TCP, TCP_NODELAY,
1699 (char *)&tmp, sizeof(tmp) );
1700 if ( rc == AC_SOCKET_ERROR ) {
1701 int err = sock_errno();
1702 Debug( LDAP_DEBUG_ANY,
1703 "slapd(%ld): setsockopt(TCP_NODELAY) failed "
1704 "errno=%d (%s)\n", (long) s, err, sock_errstr(err) );
1706 #endif /* TCP_NODELAY */
1708 #endif /* SO_KEEPALIVE || TCP_NODELAY */
1710 Debug( LDAP_DEBUG_CONNS,
1711 "daemon: listen=%ld, new connection on %ld\n",
1712 (long) sl->sl_sd, (long) s, 0 );
1714 switch ( from.sa_addr.sa_family ) {
1715 # ifdef LDAP_PF_LOCAL
1717 /* FIXME: apparently accept doesn't fill
1718 * the sun_path sun_path member */
1719 if ( from.sa_un_addr.sun_path[0] == '\0' ) {
1720 AC_MEMCPY( from.sa_un_addr.sun_path,
1721 sl->sl_sa.sa_un_addr.sun_path,
1722 sizeof( from.sa_un_addr.sun_path ) );
1725 sprintf( peername, "PATH=%s", from.sa_un_addr.sun_path );
1731 if( getpeereid( s, &uid, &gid ) == 0 ) {
1732 authid.bv_val = ch_malloc(
1733 STRLENOF( "gidNumber=4294967295+uidNumber=4294967295,"
1734 "cn=peercred,cn=external,cn=auth" ) + 1 );
1735 authid.bv_len = sprintf( authid.bv_val,
1736 "gidNumber=%d+uidNumber=%d,"
1737 "cn=peercred,cn=external,cn=auth",
1738 (int) gid, (int) uid );
1739 assert( authid.bv_len <=
1740 STRLENOF( "gidNumber=4294967295+uidNumber=4294967295,"
1741 "cn=peercred,cn=external,cn=auth" ) );
1746 #endif /* LDAP_PF_LOCAL */
1748 # ifdef LDAP_PF_INET6
1750 if ( IN6_IS_ADDR_V4MAPPED(&from.sa_in6_addr.sin6_addr) ) {
1751 peeraddr = inet_ntoa( *((struct in_addr *)
1752 &from.sa_in6_addr.sin6_addr.s6_addr[12]) );
1753 sprintf( peername, "IP=%s:%d",
1754 peeraddr != NULL ? peeraddr : SLAP_STRING_UNKNOWN,
1755 (unsigned) ntohs( from.sa_in6_addr.sin6_port ) );
1757 char addr[INET6_ADDRSTRLEN];
1759 peeraddr = (char *) inet_ntop( AF_INET6,
1760 &from.sa_in6_addr.sin6_addr,
1761 addr, sizeof addr );
1762 sprintf( peername, "IP=[%s]:%d",
1763 peeraddr != NULL ? peeraddr : SLAP_STRING_UNKNOWN,
1764 (unsigned) ntohs( from.sa_in6_addr.sin6_port ) );
1767 # endif /* LDAP_PF_INET6 */
1770 peeraddr = inet_ntoa( from.sa_in_addr.sin_addr );
1771 sprintf( peername, "IP=%s:%d",
1772 peeraddr != NULL ? peeraddr : SLAP_STRING_UNKNOWN,
1773 (unsigned) ntohs( from.sa_in_addr.sin_port ) );
1781 if ( ( from.sa_addr.sa_family == AF_INET )
1782 #ifdef LDAP_PF_INET6
1783 || ( from.sa_addr.sa_family == AF_INET6 )
1784 #endif /* LDAP_PF_INET6 */
1788 #ifdef SLAPD_RLOOKUPS
1789 if ( use_reverse_lookup ) {
1791 if (ldap_pvt_get_hname( (const struct sockaddr *)&from, len, hbuf,
1792 sizeof(hbuf), &herr ) == 0) {
1793 ldap_pvt_str2lower( hbuf );
1797 #endif /* SLAPD_RLOOKUPS */
1802 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_tcpd_mutex );
1803 rc = hosts_ctl("slapd",
1804 dnsname != NULL ? dnsname : SLAP_STRING_UNKNOWN,
1805 peeraddr != NULL ? peeraddr : SLAP_STRING_UNKNOWN,
1806 SLAP_STRING_UNKNOWN );
1807 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_tcpd_mutex );
1810 Statslog( LDAP_DEBUG_STATS,
1811 "fd=%ld DENIED from %s (%s)\n",
1813 dnsname != NULL ? dnsname : SLAP_STRING_UNKNOWN,
1814 peeraddr != NULL ? peeraddr : SLAP_STRING_UNKNOWN,
1820 #endif /* HAVE_TCPD */
1823 id = connection_init(s, sl,
1824 dnsname != NULL ? dnsname : SLAP_STRING_UNKNOWN,
1827 sl->sl_is_tls ? CONN_IS_TLS : 0,
1828 #else /* ! HAVE_TLS */
1830 #endif /* ! HAVE_TLS */
1832 authid.bv_val ? &authid : NULL );
1834 if( authid.bv_val ) ch_free(authid.bv_val);
1837 Debug( LDAP_DEBUG_ANY,
1838 "daemon: connection_init(%ld, %s, %s) failed.\n",
1839 (long) s, peername, sl->sl_name.bv_val );
1844 Statslog( LDAP_DEBUG_STATS,
1845 "conn=%ld fd=%ld ACCEPT from %s (%s)\n",
1846 id, (long) s, peername, sl->sl_name.bv_val,
1852 #ifdef SLAP_LIGHTWEIGHT_DISPATCHER
1854 slap_listener_thread(
1859 Listener *sl = (Listener *)ptr;
1861 rc = slap_listener( sl );
1863 if( rc != LDAP_SUCCESS ) {
1864 Debug( LDAP_DEBUG_ANY,
1865 "slap_listener_thread(%s): failed err=%d",
1866 sl->sl_url.bv_val, rc, 0 );
1873 slap_listener_activate(
1878 Debug( LDAP_DEBUG_TRACE, "slap_listener_activate(%d): %s\n",
1879 sl->sl_sd, sl->sl_busy ? "busy" : "", 0 );
1883 rc = ldap_pvt_thread_pool_submit( &connection_pool,
1884 slap_listener_thread, (void *) sl );
1887 Debug( LDAP_DEBUG_ANY,
1888 "listener_activate(%d): submit failed (%d)\n",
1893 #endif /* SLAP_LIGHTWEIGHT_DISPATCHER */
1900 time_t last_idle_check = 0;
1901 struct timeval idle;
1904 #define SLAPD_IDLE_CHECK_LIMIT 4
1906 if ( global_idletimeout > 0 ) {
1907 last_idle_check = slap_get_time();
1908 /* Set the select timeout.
1909 * Don't just truncate, preserve the fractions of
1910 * seconds to prevent sleeping for zero time.
1912 idle.tv_sec = global_idletimeout / SLAPD_IDLE_CHECK_LIMIT;
1913 idle.tv_usec = global_idletimeout - \
1914 ( idle.tv_sec * SLAPD_IDLE_CHECK_LIMIT );
1915 idle.tv_usec *= 1000000 / SLAPD_IDLE_CHECK_LIMIT;
1921 slapd_add( wake_sds[0], 0, NULL );
1923 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1924 if ( slap_listeners[l]->sl_sd == AC_SOCKET_INVALID ) continue;
1926 #ifdef LDAP_CONNECTIONLESS
1927 /* Since this is connectionless, the data port is the
1928 * listening port. The listen() and accept() calls
1931 if ( slap_listeners[l]->sl_is_udp )
1933 #endif /* LDAP_CONNECTIONLESS */
1935 if ( listen( slap_listeners[l]->sl_sd, SLAPD_LISTEN_BACKLOG ) == -1 ) {
1936 int err = sock_errno();
1938 #ifdef LDAP_PF_INET6
1939 /* If error is EADDRINUSE, we are trying to listen to INADDR_ANY and
1940 * we are already listening to in6addr_any, then we want to ignore
1941 * this and continue.
1943 if ( err == EADDRINUSE ) {
1945 struct sockaddr_in sa = slap_listeners[l]->sl_sa.sa_in_addr;
1946 struct sockaddr_in6 sa6;
1948 if ( sa.sin_family == AF_INET &&
1949 sa.sin_addr.s_addr == htonl(INADDR_ANY) ) {
1950 for ( i = 0 ; i < l; i++ ) {
1951 sa6 = slap_listeners[i]->sl_sa.sa_in6_addr;
1952 if ( sa6.sin6_family == AF_INET6 &&
1953 !memcmp( &sa6.sin6_addr, &in6addr_any,
1954 sizeof(struct in6_addr) ) )
1961 /* We are already listening to in6addr_any */
1962 Debug( LDAP_DEBUG_CONNS,
1963 "daemon: Attempt to listen to 0.0.0.0 failed, "
1964 "already listening on ::, assuming IPv4 included\n",
1966 slapd_close( slap_listeners[l]->sl_sd );
1967 slap_listeners[l]->sl_sd = AC_SOCKET_INVALID;
1972 #endif /* LDAP_PF_INET6 */
1973 Debug( LDAP_DEBUG_ANY,
1974 "daemon: listen(%s, 5) failed errno=%d (%s)\n",
1975 slap_listeners[l]->sl_url.bv_val, err,
1980 #ifdef SLAP_LIGHTWEIGHT_DISPATCHER
1981 /* make the listening socket non-blocking */
1982 if ( ber_pvt_socket_set_nonblock( slap_listeners[l]->sl_sd, 1 ) < 0 ) {
1983 Debug( LDAP_DEBUG_ANY, "slapd_daemon_task: "
1984 "set nonblocking on a listening socket failed\n",
1989 #endif /* SLAP_LIGHTWEIGHT_DISPATCHER */
1991 slapd_add( slap_listeners[l]->sl_sd, 0, slap_listeners[l] );
1994 #ifdef HAVE_NT_SERVICE_MANAGER
1995 if ( started_event != NULL ) {
1996 ldap_pvt_thread_cond_signal( &started_event );
1998 #endif /* HAVE_NT_SERVICE_MANAGER */
2000 #ifdef SLAP_SEM_LOAD_CONTROL
2002 * initialize count and lazyness of a semaphore
2004 (void) ldap_lazy_sem_init(
2005 SLAP_MAX_WORKER_THREADS + 4 /* max workers + margin */,
2007 #endif /* SLAP_SEM_LOAD_CONTROL */
2009 /* initialization complete. Here comes the loop. */
2011 while ( !slapd_shutdown ) {
2016 #if SLAP_EVENTS_ARE_INDEXED
2017 ber_socket_t nrfds, nwfds;
2018 #endif /* SLAP_EVENTS_ARE_INDEXED */
2019 #define SLAPD_EBADF_LIMIT 16
2026 struct timeval *tvp;
2032 now = slap_get_time();
2034 if ( ( global_idletimeout > 0 ) &&
2035 difftime( last_idle_check +
2036 global_idletimeout/SLAPD_IDLE_CHECK_LIMIT, now ) < 0 )
2038 connections_timeout_idle( now );
2039 last_idle_check = now;
2044 if ( slapd_gentle_shutdown ) {
2045 ber_socket_t active;
2047 if ( slapd_gentle_shutdown == 1 ) {
2049 Debug( LDAP_DEBUG_ANY, "slapd gentle shutdown\n", 0, 0, 0 );
2050 close_listeners( 1 );
2051 frontendDB->be_restrictops |= SLAP_RESTRICT_OP_WRITES;
2052 LDAP_STAILQ_FOREACH(be, &backendDB, be_next) {
2053 be->be_restrictops |= SLAP_RESTRICT_OP_WRITES;
2055 slapd_gentle_shutdown = 2;
2058 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
2059 active = slap_daemon.sd_nactives;
2060 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
2061 if ( active == 0 ) {
2069 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
2071 nwriters = slap_daemon.sd_nwriters;
2073 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
2074 Listener *lr = slap_listeners[l];
2076 if ( lr->sl_sd == AC_SOCKET_INVALID ) continue;
2078 #ifdef SLAP_LIGHTWEIGHT_DISPATCHER
2079 if ( lr->sl_mute || lr->sl_busy )
2080 #else /* ! SLAP_LIGHTWEIGHT_DISPATCHER */
2082 #endif /* ! SLAP_LIGHTWEIGHT_DISPATCHER */
2084 SLAP_SOCK_CLR_READ( lr->sl_sd );
2086 SLAP_SOCK_SET_READ( lr->sl_sd );
2092 nfds = SLAP_EVENT_MAX;
2094 if ( global_idletimeout && slap_daemon.sd_nactives ) at = 1;
2096 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
2099 #if defined(HAVE_YIELDING_SELECT) || defined(NO_THREADS)
2100 && ( tv.tv_sec || tv.tv_usec )
2101 #endif /* HAVE_YIELDING_SELECT || NO_THREADS */
2109 ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
2110 rtask = ldap_pvt_runqueue_next_sched( &slapd_rq, &cat );
2111 while ( rtask && cat.tv_sec && cat.tv_sec <= now ) {
2112 if ( ldap_pvt_runqueue_isrunning( &slapd_rq, rtask )) {
2113 ldap_pvt_runqueue_resched( &slapd_rq, rtask, 0 );
2115 ldap_pvt_runqueue_runtask( &slapd_rq, rtask );
2116 ldap_pvt_runqueue_resched( &slapd_rq, rtask, 0 );
2117 ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
2118 ldap_pvt_thread_pool_submit( &connection_pool,
2119 rtask->routine, (void *) rtask );
2120 ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
2122 rtask = ldap_pvt_runqueue_next_sched( &slapd_rq, &cat );
2124 ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
2126 if ( rtask && cat.tv_sec ) {
2127 time_t diff = difftime( cat.tv_sec, now );
2128 if ( diff == 0 ) diff = tdelta;
2129 if ( tvp == NULL || diff < tv.tv_sec ) {
2136 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
2137 Listener *lr = slap_listeners[l];
2139 if ( lr->sl_sd == AC_SOCKET_INVALID ) {
2143 if ( lr->sl_mute ) {
2144 Debug( LDAP_DEBUG_CONNS,
2145 "daemon: " SLAP_EVENT_FNAME ": "
2146 "listen=%d muted\n",
2151 #ifdef SLAP_LIGHTWEIGHT_DISPATCHER
2152 if ( lr->sl_busy ) {
2153 Debug( LDAP_DEBUG_CONNS,
2154 "daemon: " SLAP_EVENT_FNAME ": "
2159 #endif /* SLAP_LIGHTWEIGHT_DISPATCHER */
2161 Debug( LDAP_DEBUG_CONNS,
2162 "daemon: " SLAP_EVENT_FNAME ": "
2163 "listen=%d active_threads=%d tvp=%s\n",
2164 lr->sl_sd, at, tvp == NULL ? "NULL" : "zero" );
2167 SLAP_EVENT_WAIT( tvp, &ns );
2169 case -1: { /* failure - try again */
2170 int err = sock_errno();
2172 if ( err != EINTR ) {
2175 /* Don't log unless we got it twice in a row */
2176 if ( !( ebadf & 1 ) ) {
2177 Debug( LDAP_DEBUG_ANY,
2183 sock_errstr( err ) );
2185 if ( ebadf >= SLAPD_EBADF_LIMIT ) {
2192 case 0: /* timeout - let threads run */
2194 #ifndef HAVE_YIELDING_SELECT
2195 Debug( LDAP_DEBUG_CONNS, "daemon: " SLAP_EVENT_FNAME
2196 "timeout - yielding\n",
2199 ldap_pvt_thread_yield();
2200 #endif /* ! HAVE_YIELDING_SELECT */
2203 default: /* something happened - deal with it */
2204 if ( slapd_shutdown ) continue;
2207 Debug( LDAP_DEBUG_CONNS,
2208 "daemon: activity on %d descriptor%s\n",
2209 ns, ns != 1 ? "s" : "", 0 );
2213 #if SLAP_EVENTS_ARE_INDEXED
2214 if ( SLAP_EVENT_IS_READ( wake_sds[0] ) ) {
2216 SLAP_EVENT_CLR_READ( wake_sds[0] );
2218 tcp_read( wake_sds[0], c, sizeof(c) );
2219 Debug( LDAP_DEBUG_CONNS, "daemon: waked\n", 0, 0, 0 );
2223 /* The event slot equals the descriptor number - this is
2224 * true for Unix select and poll. We treat Windows select
2225 * like this too, even though it's a kludge.
2227 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
2230 if ( ns <= 0 ) break;
2231 if ( slap_listeners[l]->sl_sd == AC_SOCKET_INVALID ) continue;
2232 #ifdef LDAP_CONNECTIONLESS
2233 if ( slap_listeners[l]->sl_is_udp ) continue;
2234 #endif /* LDAP_CONNECTIONLESS */
2235 if ( !SLAP_EVENT_IS_READ( slap_listeners[l]->sl_sd ) ) continue;
2238 SLAP_EVENT_CLR_READ( slap_listeners[l]->sl_sd );
2239 SLAP_EVENT_CLR_WRITE( slap_listeners[l]->sl_sd );
2242 #ifdef SLAP_LIGHTWEIGHT_DISPATCHER
2243 rc = slap_listener_activate( slap_listeners[l] );
2244 #else /* ! SLAP_LIGHTWEIGHT_DISPATCHER */
2245 rc = slap_listener( slap_listeners[l] );
2246 #endif /* ! SLAP_LIGHTWEIGHT_DISPATCHER */
2249 /* bypass the following tests if no descriptors left */
2251 #ifndef HAVE_YIELDING_SELECT
2252 ldap_pvt_thread_yield();
2253 #endif /* HAVE_YIELDING_SELECT */
2257 Debug( LDAP_DEBUG_CONNS, "daemon: activity on:", 0, 0, 0 );
2259 nrfds = readfds.fd_count;
2260 nwfds = writefds.fd_count;
2261 for ( i = 0; i < readfds.fd_count; i++ ) {
2262 Debug( LDAP_DEBUG_CONNS, " %d%s",
2263 readfds.fd_array[i], "r", 0 );
2265 for ( i = 0; i < writefds.fd_count; i++ ) {
2266 Debug( LDAP_DEBUG_CONNS, " %d%s",
2267 writefds.fd_array[i], "w", 0 );
2270 #else /* ! HAVE_WINSOCK */
2273 for ( i = 0; i < nfds; i++ ) {
2276 r = SLAP_EVENT_IS_READ( i );
2277 /* writefds was not initialized if nwriters was zero */
2278 w = nwriters ? SLAP_EVENT_IS_WRITE( i ) : 0;
2280 Debug( LDAP_DEBUG_CONNS, " %d%s%s", i,
2281 r ? "r" : "", w ? "w" : "" );
2291 if ( ns <= 0 ) break;
2293 #endif /* ! HAVE_WINSOCK */
2294 Debug( LDAP_DEBUG_CONNS, "\n", 0, 0, 0 );
2296 /* loop through the writers */
2297 for ( i = 0; nwfds > 0; i++ ) {
2300 wd = writefds.fd_array[i];
2301 #else /* ! HAVE_WINSOCK */
2302 if ( ! SLAP_EVENT_IS_WRITE( i ) ) continue;
2304 #endif /* ! HAVE_WINSOCK */
2306 SLAP_EVENT_CLR_WRITE( wd );
2309 Debug( LDAP_DEBUG_CONNS,
2310 "daemon: write active on %d\n",
2314 * NOTE: it is possible that the connection was closed
2315 * and that the stream is now inactive.
2316 * connection_write() must validate the stream is still
2319 * ITS#4338: if the stream is invalid, there is no need to
2320 * close it here. It has already been closed in connection.c.
2322 if ( connection_write( wd ) < 0 ) {
2323 if ( SLAP_EVENT_IS_READ( wd ) ) {
2324 SLAP_EVENT_CLR_READ( (unsigned) wd );
2330 for ( i = 0; nrfds > 0; i++ ) {
2333 rd = readfds.fd_array[i];
2334 #else /* ! HAVE_WINSOCK */
2335 if ( ! SLAP_EVENT_IS_READ( i ) ) continue;
2337 #endif /* ! HAVE_WINSOCK */
2338 SLAP_EVENT_CLR_READ( rd );
2341 Debug ( LDAP_DEBUG_CONNS,
2342 "daemon: read activity on %d\n", rd, 0, 0 );
2344 * NOTE: it is possible that the connection was closed
2345 * and that the stream is now inactive.
2346 * connection_read() must valid the stream is still
2350 #ifdef SLAP_LIGHTWEIGHT_DISPATCHER
2351 connection_read_activate( rd );
2352 #else /* ! SLAP_LIGHTWEIGHT_DISPATCHER */
2353 connection_read( rd );
2354 #endif /* ! SLAP_LIGHTWEIGHT_DISPATCHER */
2356 #else /* !SLAP_EVENTS_ARE_INDEXED */
2358 /* The events are returned in an arbitrary list. This is true
2359 * for /dev/poll, epoll and kqueue. In order to prioritize things
2360 * so that we can handle wake_sds first, listeners second, and then
2361 * all other connections last (as we do for select), we would need
2362 * to use multiple event handles and cascade them.
2364 * That seems like a bit of hassle. So the wake_sds check has been
2365 * skipped. For epoll and kqueue we can associate arbitrary data with
2366 * an event, so we could use pointers to the listener structure
2367 * instead of just the file descriptor. For /dev/poll we have to
2368 * search the listeners array for a matching descriptor.
2370 * We now handle wake events when we see them; they are not given
2374 Debug( LDAP_DEBUG_CONNS, "daemon: activity on:", 0, 0, 0 );
2376 for ( i = 0; i < ns; i++ ) {
2379 /* Don't log listener events */
2380 if ( SLAP_EVENT_IS_LISTENER( i )
2381 #ifdef LDAP_CONNECTIONLESS
2382 && !( (SLAP_EVENT_LISTENER( i ))->sl_is_udp )
2383 #endif /* LDAP_CONNECTIONLESS */
2389 /* Don't log internal wake events */
2390 if ( SLAP_EVENT_FD( i ) == wake_sds[0] ) continue;
2392 r = SLAP_EVENT_IS_READ( i );
2393 w = SLAP_EVENT_IS_WRITE( i );
2395 Debug( LDAP_DEBUG_CONNS, " %d%s%s", SLAP_EVENT_FD(i),
2396 r ? "r" : "", w ? "w" : "" );
2399 Debug( LDAP_DEBUG_CONNS, "\n", 0, 0, 0 );
2400 #endif /* LDAP_DEBUG */
2402 for ( i = 0; i < ns; i++ ) {
2405 if ( SLAP_EVENT_IS_LISTENER( i ) ) {
2406 #ifdef SLAP_LIGHTWEIGHT_DISPATCHER
2407 rc = slap_listener_activate( SLAP_EVENT_LISTENER( i ) );
2408 #else /* ! SLAP_LIGHTWEIGHT_DISPATCHER */
2409 rc = slap_listener( SLAP_EVENT_LISTENER( i ) );
2410 #endif /* ! SLAP_LIGHTWEIGHT_DISPATCHER */
2413 /* If we found a regular listener, rc is now zero, and we
2414 * can skip the data portion. But if it was a UDP listener
2415 * then rc is still 1, and we want to handle the data.
2418 fd = SLAP_EVENT_FD( i );
2420 /* Handle wake events */
2421 if ( fd == wake_sds[0] ) {
2424 tcp_read( wake_sds[0], c, sizeof(c) );
2428 if ( SLAP_EVENT_IS_WRITE( i ) ) {
2429 Debug( LDAP_DEBUG_CONNS,
2430 "daemon: write active on %d\n",
2433 SLAP_EVENT_CLR_WRITE( i );
2436 * NOTE: it is possible that the connection was closed
2437 * and that the stream is now inactive.
2438 * connection_write() must valid the stream is still
2441 if ( connection_write( fd ) < 0 ) {
2445 /* If event is a read */
2446 if ( SLAP_EVENT_IS_READ( i ) ) {
2447 Debug( LDAP_DEBUG_CONNS,
2448 "daemon: read active on %d\n",
2451 SLAP_EVENT_CLR_READ( i );
2452 #ifdef SLAP_LIGHTWEIGHT_DISPATCHER
2453 connection_read_activate( fd );
2454 #else /* ! SLAP_LIGHTWEIGHT_DISPATCHER */
2456 * NOTE: it is possible that the connection was closed
2457 * and that the stream is now inactive.
2458 * connection_read() must valid the stream is still
2461 connection_read( fd );
2462 #endif /* ! SLAP_LIGHTWEIGHT_DISPATCHER */
2464 Debug( LDAP_DEBUG_CONNS,
2465 "daemon: hangup on %d\n", fd, 0, 0 );
2469 #endif /* SLAP_EVENTS_ARE_INDEXED */
2471 #ifndef HAVE_YIELDING_SELECT
2472 ldap_pvt_thread_yield();
2473 #endif /* ! HAVE_YIELDING_SELECT */
2476 if ( slapd_shutdown == 1 ) {
2477 Debug( LDAP_DEBUG_ANY,
2478 "daemon: shutdown requested and initiated.\n",
2481 } else if ( slapd_shutdown == 2 ) {
2482 #ifdef HAVE_NT_SERVICE_MANAGER
2483 Debug( LDAP_DEBUG_ANY,
2484 "daemon: shutdown initiated by Service Manager.\n",
2486 #else /* !HAVE_NT_SERVICE_MANAGER */
2487 Debug( LDAP_DEBUG_ANY,
2488 "daemon: abnormal condition, shutdown initiated.\n",
2490 #endif /* !HAVE_NT_SERVICE_MANAGER */
2492 Debug( LDAP_DEBUG_ANY,
2493 "daemon: no active streams, shutdown initiated.\n",
2497 if ( slapd_gentle_shutdown != 2 ) close_listeners ( 0 );
2499 if ( !slapd_gentle_shutdown ) {
2500 slapd_abrupt_shutdown = 1;
2501 connections_shutdown();
2504 Debug( LDAP_DEBUG_ANY,
2505 "slapd shutdown: waiting for %d threads to terminate\n",
2506 ldap_pvt_thread_pool_backload( &connection_pool ), 0, 0 );
2507 ldap_pvt_thread_pool_destroy( &connection_pool, 1 );
2509 free( slap_listeners );
2510 slap_listeners = NULL;
2516 #ifdef LDAP_CONNECTIONLESS
2518 connectionless_init( void )
2522 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
2523 Listener *lr = slap_listeners[l];
2526 if ( !lr->sl_is_udp ) {
2530 id = connection_init( lr->sl_sd, lr, "", "",
2531 CONN_IS_UDP, (slap_ssf_t) 0, NULL );
2534 Debug( LDAP_DEBUG_TRACE,
2535 "connectionless_init: failed on %s (%d)\n",
2536 lr->sl_url, lr->sl_sd, 0 );
2544 #endif /* LDAP_CONNECTIONLESS */
2547 slapd_daemon( void )
2552 #ifdef LDAP_CONNECTIONLESS
2553 connectionless_init();
2554 #endif /* LDAP_CONNECTIONLESS */
2556 #define SLAPD_LISTENER_THREAD 1
2557 #if defined( SLAPD_LISTENER_THREAD )
2559 ldap_pvt_thread_t listener_tid;
2561 /* listener as a separate THREAD */
2562 rc = ldap_pvt_thread_create( &listener_tid,
2563 0, slapd_daemon_task, NULL );
2566 Debug( LDAP_DEBUG_ANY,
2567 "listener ldap_pvt_thread_create failed (%d)\n", rc, 0, 0 );
2571 /* wait for the listener thread to complete */
2572 ldap_pvt_thread_join( listener_tid, (void *)NULL );
2574 #else /* ! SLAPD_LISTENER_THREAD */
2575 /* experimental code */
2576 slapd_daemon_task( NULL );
2577 #endif /* ! SLAPD_LISTENER_THREAD */
2585 #if defined( HAVE_WINSOCK2 )
2586 WORD wVersionRequested;
2590 wVersionRequested = MAKEWORD( 2, 0 );
2592 err = WSAStartup( wVersionRequested, &wsaData );
2594 /* Tell the user that we couldn't find a usable */
2599 /* Confirm that the WinSock DLL supports 2.0.*/
2600 /* Note that if the DLL supports versions greater */
2601 /* than 2.0 in addition to 2.0, it will still return */
2602 /* 2.0 in wVersion since that is the version we */
2605 if ( LOBYTE( wsaData.wVersion ) != 2 ||
2606 HIBYTE( wsaData.wVersion ) != 0 )
2608 /* Tell the user that we couldn't find a usable */
2614 /* The WinSock DLL is acceptable. Proceed. */
2615 #elif defined( HAVE_WINSOCK )
2617 if ( WSAStartup( 0x0101, &wsaData ) != 0 ) return -1;
2618 #endif /* ! HAVE_WINSOCK2 && ! HAVE_WINSOCK */
2626 #if defined( HAVE_WINSOCK2 ) || defined( HAVE_WINSOCK )
2628 #endif /* HAVE_WINSOCK2 || HAVE_WINSOCK */
2635 slap_sig_shutdown( int sig )
2638 Debug(LDAP_DEBUG_TRACE, "slap_sig_shutdown: signal %d\n", sig, 0, 0);
2642 * If the NT Service Manager is controlling the server, we don't
2643 * want SIGBREAK to kill the server. For some strange reason,
2644 * SIGBREAK is generated when a user logs out.
2647 #if HAVE_NT_SERVICE_MANAGER && SIGBREAK
2648 if (is_NT_Service && sig == SIGBREAK) {
2651 #endif /* HAVE_NT_SERVICE_MANAGER && SIGBREAK */
2653 if (sig == SIGHUP && global_gentlehup && slapd_gentle_shutdown == 0) {
2654 slapd_gentle_shutdown = 1;
2663 /* reinstall self */
2664 (void) SIGNAL_REINSTALL( sig, slap_sig_shutdown );
2668 slap_sig_wake( int sig )
2672 /* reinstall self */
2673 (void) SIGNAL_REINSTALL( sig, slap_sig_wake );
2678 slapd_add_internal( ber_socket_t s, int isactive )
2680 slapd_add( s, isactive, NULL );
2684 slapd_get_listeners( void )
2686 return slap_listeners;
2690 slap_wake_listener()