2 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
4 * Copyright 1998-2011 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"
44 #if defined(HAVE_SYS_EPOLL_H) && defined(HAVE_EPOLL)
45 # include <sys/epoll.h>
46 #elif defined(SLAP_X_DEVPOLL) && defined(HAVE_SYS_DEVPOLL_H) && defined(HAVE_DEVPOLL)
47 # include <sys/types.h>
48 # include <sys/stat.h>
50 # include <sys/devpoll.h>
51 #endif /* ! epoll && ! /dev/poll */
54 int allow_severity = LOG_INFO;
55 int deny_severity = LOG_NOTICE;
56 #endif /* TCP Wrappers */
59 # include <sys/stat.h>
60 /* this should go in <ldap.h> as soon as it is accepted */
61 # define LDAPI_MOD_URLEXT "x-mod"
62 #endif /* LDAP_PF_LOCAL */
65 int slap_inet4or6 = AF_UNSPEC;
67 int slap_inet4or6 = AF_INET;
72 ber_socket_t dtblsize;
73 slap_ssf_t local_ssf = LDAP_PVT_SASL_LOCAL_SSF;
74 struct runqueue_s slapd_rq;
76 #define MAX_DAEMON_THREADS 16
77 int slapd_daemon_threads = 1;
78 int slapd_daemon_mask;
80 #ifdef LDAP_TCP_BUFFER
83 #endif /* LDAP_TCP_BUFFER */
85 Listener **slap_listeners = NULL;
86 static volatile sig_atomic_t listening = 1; /* 0 when slap_listeners closed */
88 #ifndef SLAPD_LISTEN_BACKLOG
89 #define SLAPD_LISTEN_BACKLOG 1024
90 #endif /* ! SLAPD_LISTEN_BACKLOG */
92 #define DAEMON_ID(fd) (fd & slapd_daemon_mask)
94 static ber_socket_t wake_sds[MAX_DAEMON_THREADS][2];
97 static time_t chk_writetime;
99 static volatile int waking;
101 #define WAKE_LISTENER(l,w) do { \
102 if ((w) && ++waking < 5) { \
103 tcp_write( SLAP_FD2SOCK(wake_sds[l][1]), "0", 1 ); \
106 #else /* ! NO_THREADS */
107 #define WAKE_LISTENER(l,w) do { \
109 tcp_write( SLAP_FD2SOCK(wake_sds[l][1]), "0", 1 ); \
112 #endif /* ! NO_THREADS */
114 volatile sig_atomic_t slapd_shutdown = 0;
115 volatile sig_atomic_t slapd_gentle_shutdown = 0;
116 volatile sig_atomic_t slapd_abrupt_shutdown = 0;
119 ldap_pvt_thread_mutex_t slapd_ws_mutex;
120 SOCKET *slapd_ws_sockets;
124 #define SD_LISTENER 8
128 static ldap_pvt_thread_mutex_t sd_tcpd_mutex;
129 #endif /* TCP Wrappers */
131 typedef struct slap_daemon_st {
132 ldap_pvt_thread_mutex_t sd_mutex;
134 ber_socket_t sd_nactives;
138 #if defined(HAVE_EPOLL)
139 struct epoll_event *sd_epolls;
142 #elif defined(SLAP_X_DEVPOLL) && defined(HAVE_DEVPOLL)
144 struct pollfd *sd_pollfd;
148 #else /* ! epoll && ! /dev/poll */
152 #else /* ! HAVE_WINSOCK */
156 #endif /* ! HAVE_WINSOCK */
157 #endif /* ! epoll && ! /dev/poll */
160 static slap_daemon_st slap_daemon[MAX_DAEMON_THREADS];
163 * NOTE: naming convention for macros:
165 * - SLAP_SOCK_* and SLAP_EVENT_* for public interface that deals
166 * with file descriptors and events respectively
168 * - SLAP_<type>_* for private interface; type by now is one of
169 * EPOLL, DEVPOLL, SELECT
171 * private interface should not be used in the code.
173 #if defined(HAVE_EPOLL)
174 /***************************************
175 * Use epoll infrastructure - epoll(4) *
176 ***************************************/
177 # define SLAP_EVENT_FNAME "epoll"
178 # define SLAP_EVENTS_ARE_INDEXED 0
179 # define SLAP_EPOLL_SOCK_IX(t,s) (slap_daemon[t].sd_index[(s)])
180 # define SLAP_EPOLL_SOCK_EP(t,s) (slap_daemon[t].sd_epolls[SLAP_EPOLL_SOCK_IX(t,s)])
181 # define SLAP_EPOLL_SOCK_EV(t,s) (SLAP_EPOLL_SOCK_EP(t,s).events)
182 # define SLAP_SOCK_IS_ACTIVE(t,s) (SLAP_EPOLL_SOCK_IX(t,s) != -1)
183 # define SLAP_SOCK_NOT_ACTIVE(t,s) (SLAP_EPOLL_SOCK_IX(t,s) == -1)
184 # define SLAP_EPOLL_SOCK_IS_SET(t,s, mode) (SLAP_EPOLL_SOCK_EV(t,s) & (mode))
186 # define SLAP_SOCK_IS_READ(t,s) SLAP_EPOLL_SOCK_IS_SET(t,(s), EPOLLIN)
187 # define SLAP_SOCK_IS_WRITE(t,s) SLAP_EPOLL_SOCK_IS_SET(t,(s), EPOLLOUT)
189 # define SLAP_EPOLL_SOCK_SET(t,s, mode) do { \
190 if ( (SLAP_EPOLL_SOCK_EV(t,s) & (mode)) != (mode) ) { \
191 SLAP_EPOLL_SOCK_EV(t,s) |= (mode); \
192 epoll_ctl( slap_daemon[t].sd_epfd, EPOLL_CTL_MOD, (s), \
193 &SLAP_EPOLL_SOCK_EP(t,s) ); \
197 # define SLAP_EPOLL_SOCK_CLR(t,s, mode) do { \
198 if ( (SLAP_EPOLL_SOCK_EV(t,s) & (mode)) ) { \
199 SLAP_EPOLL_SOCK_EV(t,s) &= ~(mode); \
200 epoll_ctl( slap_daemon[t].sd_epfd, EPOLL_CTL_MOD, s, \
201 &SLAP_EPOLL_SOCK_EP(t,s) ); \
205 # define SLAP_SOCK_SET_READ(t,s) SLAP_EPOLL_SOCK_SET(t,s, EPOLLIN)
206 # define SLAP_SOCK_SET_WRITE(t,s) SLAP_EPOLL_SOCK_SET(t,s, EPOLLOUT)
208 # define SLAP_SOCK_CLR_READ(t,s) SLAP_EPOLL_SOCK_CLR(t,(s), EPOLLIN)
209 # define SLAP_SOCK_CLR_WRITE(t,s) SLAP_EPOLL_SOCK_CLR(t,(s), EPOLLOUT)
211 # define SLAP_SOCK_SET_SUSPEND(t,s) \
212 ( slap_daemon[t].sd_suspend[SLAP_EPOLL_SOCK_IX(t,s)] = 1 )
213 # define SLAP_SOCK_CLR_SUSPEND(t,s) \
214 ( slap_daemon[t].sd_suspend[SLAP_EPOLL_SOCK_IX(t,s)] = 0 )
215 # define SLAP_SOCK_IS_SUSPEND(t,s) \
216 ( slap_daemon[t].sd_suspend[SLAP_EPOLL_SOCK_IX(t,s)] == 1 )
218 # define SLAP_EPOLL_EVENT_CLR(i, mode) (revents[(i)].events &= ~(mode))
220 # define SLAP_EVENT_MAX(t) slap_daemon[t].sd_nfds
222 /* If a Listener address is provided, store that as the epoll data.
223 * Otherwise, store the address of this socket's slot in the
224 * index array. If we can't do this add, the system is out of
225 * resources and we need to shutdown.
227 # define SLAP_SOCK_ADD(t, s, l) do { \
229 SLAP_EPOLL_SOCK_IX(t,(s)) = slap_daemon[t].sd_nfds; \
230 SLAP_EPOLL_SOCK_EP(t,(s)).data.ptr = (l) ? (l) : (void *)(&SLAP_EPOLL_SOCK_IX(t,s)); \
231 SLAP_EPOLL_SOCK_EV(t,(s)) = EPOLLIN; \
232 rc = epoll_ctl(slap_daemon[t].sd_epfd, EPOLL_CTL_ADD, \
233 (s), &SLAP_EPOLL_SOCK_EP(t,(s))); \
235 slap_daemon[t].sd_nfds++; \
237 Debug( LDAP_DEBUG_ANY, \
238 "daemon: epoll_ctl(ADD,fd=%d) failed, errno=%d, shutting down\n", \
240 slapd_shutdown = 2; \
244 # define SLAP_EPOLL_EV_LISTENER(t,ptr) \
245 (((int *)(ptr) >= slap_daemon[t].sd_index && \
246 (int *)(ptr) <= &slap_daemon[t].sd_index[dtblsize]) ? 0 : 1 )
248 # define SLAP_EPOLL_EV_PTRFD(t,ptr) (SLAP_EPOLL_EV_LISTENER(t,ptr) ? \
249 ((Listener *)ptr)->sl_sd : \
250 (ber_socket_t) ((int *)(ptr) - slap_daemon[t].sd_index))
252 # define SLAP_SOCK_DEL(t,s) do { \
253 int fd, rc, index = SLAP_EPOLL_SOCK_IX(t,(s)); \
254 if ( index < 0 ) break; \
255 rc = epoll_ctl(slap_daemon[t].sd_epfd, EPOLL_CTL_DEL, \
256 (s), &SLAP_EPOLL_SOCK_EP(t,(s))); \
257 slap_daemon[t].sd_epolls[index] = \
258 slap_daemon[t].sd_epolls[slap_daemon[t].sd_nfds-1]; \
259 fd = SLAP_EPOLL_EV_PTRFD(t,slap_daemon[t].sd_epolls[index].data.ptr); \
260 slap_daemon[t].sd_index[fd] = index; \
261 slap_daemon[t].sd_index[(s)] = -1; \
262 slap_daemon[t].sd_nfds--; \
265 # define SLAP_EVENT_CLR_READ(i) SLAP_EPOLL_EVENT_CLR((i), EPOLLIN)
266 # define SLAP_EVENT_CLR_WRITE(i) SLAP_EPOLL_EVENT_CLR((i), EPOLLOUT)
268 # define SLAP_EPOLL_EVENT_CHK(i, mode) (revents[(i)].events & mode)
270 # define SLAP_EVENT_IS_READ(i) SLAP_EPOLL_EVENT_CHK((i), EPOLLIN)
271 # define SLAP_EVENT_IS_WRITE(i) SLAP_EPOLL_EVENT_CHK((i), EPOLLOUT)
272 # define SLAP_EVENT_IS_LISTENER(t,i) SLAP_EPOLL_EV_LISTENER(t,revents[(i)].data.ptr)
273 # define SLAP_EVENT_LISTENER(t,i) ((Listener *)(revents[(i)].data.ptr))
275 # define SLAP_EVENT_FD(t,i) SLAP_EPOLL_EV_PTRFD(t,revents[(i)].data.ptr)
277 # define SLAP_SOCK_INIT(t) do { \
279 slap_daemon[t].sd_epolls = ch_calloc(1, \
280 ( sizeof(struct epoll_event) * 2 \
281 + sizeof(int) ) * dtblsize * 2); \
282 slap_daemon[t].sd_index = (int *)&slap_daemon[t].sd_epolls[ 2 * dtblsize ]; \
283 slap_daemon[t].sd_epfd = epoll_create( dtblsize / slapd_daemon_threads ); \
284 for ( j = 0; j < dtblsize; j++ ) slap_daemon[t].sd_index[j] = -1; \
287 # define SLAP_SOCK_DESTROY(t) do { \
288 if ( slap_daemon[t].sd_epolls != NULL ) { \
289 ch_free( slap_daemon[t].sd_epolls ); \
290 slap_daemon[t].sd_epolls = NULL; \
291 slap_daemon[t].sd_index = NULL; \
292 close( slap_daemon[t].sd_epfd ); \
296 # define SLAP_EVENT_DECL struct epoll_event *revents
298 # define SLAP_EVENT_INIT(t) do { \
299 revents = slap_daemon[t].sd_epolls + dtblsize; \
302 # define SLAP_EVENT_WAIT(t, tvp, nsp) do { \
303 *(nsp) = epoll_wait( slap_daemon[t].sd_epfd, revents, \
304 dtblsize, (tvp) ? (tvp)->tv_sec * 1000 : -1 ); \
307 #elif defined(SLAP_X_DEVPOLL) && defined(HAVE_DEVPOLL)
309 /*************************************************************
310 * Use Solaris' (>= 2.7) /dev/poll infrastructure - poll(7d) *
311 *************************************************************/
312 # define SLAP_EVENT_FNAME "/dev/poll"
313 # define SLAP_EVENTS_ARE_INDEXED 0
315 * - sd_index is used much like with epoll()
316 * - sd_l is maintained as an array containing the address
317 * of the listener; the index is the fd itself
318 * - sd_pollfd is used to keep track of what data has been
319 * registered in /dev/poll
321 # define SLAP_DEVPOLL_SOCK_IX(t,s) (slap_daemon[t].sd_index[(s)])
322 # define SLAP_DEVPOLL_SOCK_LX(t,s) (slap_daemon[t].sd_l[(s)])
323 # define SLAP_DEVPOLL_SOCK_EP(t,s) (slap_daemon[t].sd_pollfd[SLAP_DEVPOLL_SOCK_IX(t,(s))])
324 # define SLAP_DEVPOLL_SOCK_FD(t,s) (SLAP_DEVPOLL_SOCK_EP(t,(s)).fd)
325 # define SLAP_DEVPOLL_SOCK_EV(t,s) (SLAP_DEVPOLL_SOCK_EP(t,(s)).events)
326 # define SLAP_SOCK_IS_ACTIVE(t,s) (SLAP_DEVPOLL_SOCK_IX(t,(s)) != -1)
327 # define SLAP_SOCK_NOT_ACTIVE(t,s) (SLAP_DEVPOLL_SOCK_IX(t,(s)) == -1)
328 # define SLAP_SOCK_IS_SET(t,s, mode) (SLAP_DEVPOLL_SOCK_EV(t,(s)) & (mode))
330 # define SLAP_SOCK_IS_READ(t,s) SLAP_SOCK_IS_SET(t,(s), POLLIN)
331 # define SLAP_SOCK_IS_WRITE(t,s) SLAP_SOCK_IS_SET(t,(s), POLLOUT)
333 /* as far as I understand, any time we need to communicate with the kernel
334 * about the number and/or properties of a file descriptor we need it to
335 * wait for, we have to rewrite the whole set */
336 # define SLAP_DEVPOLL_WRITE_POLLFD(t,s, pfd, n, what, shdn) do { \
338 size_t size = (n) * sizeof( struct pollfd ); \
339 /* FIXME: use pwrite? */ \
340 rc = write( slap_daemon[t].sd_dpfd, (pfd), size ); \
341 if ( rc != size ) { \
342 Debug( LDAP_DEBUG_ANY, "daemon: " SLAP_EVENT_FNAME ": " \
343 "%s fd=%d failed errno=%d\n", \
344 (what), (s), errno ); \
346 slapd_shutdown = 2; \
351 # define SLAP_DEVPOLL_SOCK_SET(t,s, mode) do { \
352 Debug( LDAP_DEBUG_CONNS, "SLAP_SOCK_SET_%s(%d)=%d\n", \
353 (mode) == POLLIN ? "READ" : "WRITE", (s), \
354 ( (SLAP_DEVPOLL_SOCK_EV(t,(s)) & (mode)) != (mode) ) ); \
355 if ( (SLAP_DEVPOLL_SOCK_EV(t,(s)) & (mode)) != (mode) ) { \
357 SLAP_DEVPOLL_SOCK_EV(t,(s)) |= (mode); \
358 pfd.fd = SLAP_DEVPOLL_SOCK_FD(t,(s)); \
359 pfd.events = /* (mode) */ SLAP_DEVPOLL_SOCK_EV(t,(s)); \
360 SLAP_DEVPOLL_WRITE_POLLFD(t,(s), &pfd, 1, "SET", 0); \
364 # define SLAP_DEVPOLL_SOCK_CLR(t,s, mode) do { \
365 Debug( LDAP_DEBUG_CONNS, "SLAP_SOCK_CLR_%s(%d)=%d\n", \
366 (mode) == POLLIN ? "READ" : "WRITE", (s), \
367 ( (SLAP_DEVPOLL_SOCK_EV(t,(s)) & (mode)) == (mode) ) ); \
368 if ((SLAP_DEVPOLL_SOCK_EV(t,(s)) & (mode)) == (mode) ) { \
369 struct pollfd pfd[2]; \
370 SLAP_DEVPOLL_SOCK_EV(t,(s)) &= ~(mode); \
371 pfd[0].fd = SLAP_DEVPOLL_SOCK_FD(t,(s)); \
372 pfd[0].events = POLLREMOVE; \
373 pfd[1] = SLAP_DEVPOLL_SOCK_EP(t,(s)); \
374 SLAP_DEVPOLL_WRITE_POLLFD(t,(s), &pfd[0], 2, "CLR", 0); \
378 # define SLAP_SOCK_SET_READ(t,s) SLAP_DEVPOLL_SOCK_SET(t,s, POLLIN)
379 # define SLAP_SOCK_SET_WRITE(t,s) SLAP_DEVPOLL_SOCK_SET(t,s, POLLOUT)
381 # define SLAP_SOCK_CLR_READ(t,s) SLAP_DEVPOLL_SOCK_CLR(t,(s), POLLIN)
382 # define SLAP_SOCK_CLR_WRITE(t,s) SLAP_DEVPOLL_SOCK_CLR(t,(s), POLLOUT)
384 # define SLAP_SOCK_SET_SUSPEND(t,s) \
385 ( slap_daemon[t].sd_suspend[SLAP_DEVPOLL_SOCK_IX(t,(s))] = 1 )
386 # define SLAP_SOCK_CLR_SUSPEND(t,s) \
387 ( slap_daemon[t].sd_suspend[SLAP_DEVPOLL_SOCK_IX(t,(s))] = 0 )
388 # define SLAP_SOCK_IS_SUSPEND(t,s) \
389 ( slap_daemon[t].sd_suspend[SLAP_DEVPOLL_SOCK_IX(t,(s))] == 1 )
391 # define SLAP_DEVPOLL_EVENT_CLR(i, mode) (revents[(i)].events &= ~(mode))
393 # define SLAP_EVENT_MAX(t) slap_daemon[t].sd_nfds
395 /* If a Listener address is provided, store that in the sd_l array.
396 * If we can't do this add, the system is out of resources and we
399 # define SLAP_SOCK_ADD(t, s, l) do { \
400 Debug( LDAP_DEBUG_CONNS, "SLAP_SOCK_ADD(%d, %p)\n", (s), (l), 0 ); \
401 SLAP_DEVPOLL_SOCK_IX(t,(s)) = slap_daemon[t].sd_nfds; \
402 SLAP_DEVPOLL_SOCK_LX(t,(s)) = (l); \
403 SLAP_DEVPOLL_SOCK_FD(t,(s)) = (s); \
404 SLAP_DEVPOLL_SOCK_EV(t,(s)) = POLLIN; \
405 SLAP_DEVPOLL_WRITE_POLLFD(t,(s), &SLAP_DEVPOLL_SOCK_EP((s)), 1, "ADD", 1); \
406 slap_daemon[t].sd_nfds++; \
409 # define SLAP_DEVPOLL_EV_LISTENER(ptr) ((ptr) != NULL)
411 # define SLAP_SOCK_DEL(t,s) do { \
412 int fd, index = SLAP_DEVPOLL_SOCK_IX(t,(s)); \
413 Debug( LDAP_DEBUG_CONNS, "SLAP_SOCK_DEL(%d)\n", (s), 0, 0 ); \
414 if ( index < 0 ) break; \
415 if ( index < slap_daemon[t].sd_nfds - 1 ) { \
416 struct pollfd pfd = slap_daemon[t].sd_pollfd[index]; \
417 fd = slap_daemon[t].sd_pollfd[slap_daemon[t].sd_nfds - 1].fd; \
418 slap_daemon[t].sd_pollfd[index] = slap_daemon[t].sd_pollfd[slap_daemon[t].sd_nfds - 1]; \
419 slap_daemon[t].sd_pollfd[slap_daemon[t].sd_nfds - 1] = pfd; \
420 slap_daemon[t].sd_index[fd] = index; \
422 slap_daemon[t].sd_index[(s)] = -1; \
423 slap_daemon[t].sd_pollfd[slap_daemon[t].sd_nfds - 1].events = POLLREMOVE; \
424 SLAP_DEVPOLL_WRITE_POLLFD(t,(s), &slap_daemon[t].sd_pollfd[slap_daemon[t].sd_nfds - 1], 1, "DEL", 0); \
425 slap_daemon[t].sd_pollfd[slap_daemon[t].sd_nfds - 1].events = 0; \
426 slap_daemon[t].sd_nfds--; \
429 # define SLAP_EVENT_CLR_READ(i) SLAP_DEVPOLL_EVENT_CLR((i), POLLIN)
430 # define SLAP_EVENT_CLR_WRITE(i) SLAP_DEVPOLL_EVENT_CLR((i), POLLOUT)
432 # define SLAP_DEVPOLL_EVENT_CHK(i, mode) (revents[(i)].events & (mode))
434 # define SLAP_EVENT_FD(t,i) (revents[(i)].fd)
436 # define SLAP_EVENT_IS_READ(i) SLAP_DEVPOLL_EVENT_CHK((i), POLLIN)
437 # define SLAP_EVENT_IS_WRITE(i) SLAP_DEVPOLL_EVENT_CHK((i), POLLOUT)
438 # define SLAP_EVENT_IS_LISTENER(t,i) SLAP_DEVPOLL_EV_LISTENER(SLAP_DEVPOLL_SOCK_LX(SLAP_EVENT_FD(t,(i))))
439 # define SLAP_EVENT_LISTENER(t,i) SLAP_DEVPOLL_SOCK_LX(SLAP_EVENT_FD(t,(i)))
441 # define SLAP_SOCK_INIT(t) do { \
442 slap_daemon[t].sd_pollfd = ch_calloc( 1, \
443 ( sizeof(struct pollfd) * 2 \
445 + sizeof( Listener * ) ) * dtblsize ); \
446 slap_daemon[t].sd_index = (int *)&slap_daemon[t].sd_pollfd[ 2 * dtblsize ]; \
447 slap_daemon[t].sd_l = (Listener **)&slap_daemon[t].sd_index[ dtblsize ]; \
448 slap_daemon[t].sd_dpfd = open( SLAP_EVENT_FNAME, O_RDWR ); \
449 if ( slap_daemon[t].sd_dpfd == -1 ) { \
450 Debug( LDAP_DEBUG_ANY, "daemon: " SLAP_EVENT_FNAME ": " \
451 "open(\"" SLAP_EVENT_FNAME "\") failed errno=%d\n", \
456 for ( i = 0; i < dtblsize; i++ ) { \
457 slap_daemon[t].sd_pollfd[i].fd = -1; \
458 slap_daemon[t].sd_index[i] = -1; \
462 # define SLAP_SOCK_DESTROY(t) do { \
463 if ( slap_daemon[t].sd_pollfd != NULL ) { \
464 ch_free( slap_daemon[t].sd_pollfd ); \
465 slap_daemon[t].sd_pollfd = NULL; \
466 slap_daemon[t].sd_index = NULL; \
467 slap_daemon[t].sd_l = NULL; \
468 close( slap_daemon[t].sd_dpfd ); \
472 # define SLAP_EVENT_DECL struct pollfd *revents
474 # define SLAP_EVENT_INIT(t) do { \
475 revents = &slap_daemon[t].sd_pollfd[ dtblsize ]; \
478 # define SLAP_EVENT_WAIT(t, tvp, nsp) do { \
479 struct dvpoll sd_dvpoll; \
480 sd_dvpoll.dp_timeout = (tvp) ? (tvp)->tv_sec * 1000 : -1; \
481 sd_dvpoll.dp_nfds = dtblsize; \
482 sd_dvpoll.dp_fds = revents; \
483 *(nsp) = ioctl( slap_daemon[t].sd_dpfd, DP_POLL, &sd_dvpoll ); \
486 #else /* ! epoll && ! /dev/poll */
488 # define SLAP_EVENT_FNAME "WSselect"
489 /* Winsock provides a "select" function but its fd_sets are
490 * actually arrays of sockets. Since these sockets are handles
491 * and not a contiguous range of small integers, we manage our
492 * own "fd" table of socket handles and use their indices as
495 * All of our listener/connection structures use fds; the actual
496 * I/O functions use sockets. The SLAP_FD2SOCK macro in proto-slap.h
497 * handles the mapping.
499 * Despite the mapping overhead, this is about 45% more efficient
500 * than just using Winsock's select and FD_ISSET directly.
502 * Unfortunately Winsock's select implementation doesn't scale well
503 * as the number of connections increases. This probably needs to be
504 * rewritten to use the Winsock overlapped/asynchronous I/O functions.
506 # define SLAP_EVENTS_ARE_INDEXED 1
507 # define SLAP_EVENT_DECL fd_set readfds, writefds; char *rflags
508 # define SLAP_EVENT_INIT(t) do { \
510 FD_ZERO( &readfds ); \
511 FD_ZERO( &writefds ); \
512 rflags = slap_daemon[t].sd_rflags; \
513 memset( rflags, 0, slap_daemon[t].sd_nfds ); \
514 for ( i=0; i<slap_daemon[t].sd_nfds; i++ ) { \
515 if ( slap_daemon[t].sd_flags[i] & SD_READ ) \
516 FD_SET( slapd_ws_sockets[i], &readfds );\
517 if ( slap_daemon[t].sd_flags[i] & SD_WRITE ) \
518 FD_SET( slapd_ws_sockets[i], &writefds ); \
521 # define SLAP_EVENT_MAX(t) slap_daemon[t].sd_nfds
523 # define SLAP_EVENT_WAIT(t, tvp, nsp) do { \
525 *(nsp) = select( SLAP_EVENT_MAX(t), &readfds, \
526 nwriters > 0 ? &writefds : NULL, NULL, (tvp) ); \
527 for ( i=0; i<readfds.fd_count; i++) { \
528 int fd = slapd_sock2fd(readfds.fd_array[i]); \
530 slap_daemon[t].sd_rflags[fd] = SD_READ; \
531 if ( fd >= *(nsp)) *(nsp) = fd+1; \
534 for ( i=0; i<writefds.fd_count; i++) { \
535 int fd = slapd_sock2fd(writefds.fd_array[i]); \
537 slap_daemon[t].sd_rflags[fd] = SD_WRITE; \
538 if ( fd >= *(nsp)) *(nsp) = fd+1; \
543 # define SLAP_EVENT_IS_READ(fd) (rflags[fd] & SD_READ)
544 # define SLAP_EVENT_IS_WRITE(fd) (rflags[fd] & SD_WRITE)
546 # define SLAP_EVENT_CLR_READ(fd) rflags[fd] &= ~SD_READ
547 # define SLAP_EVENT_CLR_WRITE(fd) rflags[fd] &= ~SD_WRITE
549 # define SLAP_SOCK_INIT(t) do { \
551 ldap_pvt_thread_mutex_init( &slapd_ws_mutex ); \
552 slapd_ws_sockets = ch_malloc( dtblsize * ( sizeof(SOCKET) + 2)); \
553 memset( slapd_ws_sockets, -1, dtblsize * sizeof(SOCKET) ); \
555 slap_daemon[t].sd_flags = (char *)(slapd_ws_sockets + dtblsize); \
556 slap_daemon[t].sd_rflags = slap_daemon[t].sd_flags + dtblsize; \
557 memset( slap_daemon[t].sd_flags, 0, dtblsize ); \
558 slapd_ws_sockets[t*2] = wake_sds[t][0]; \
559 slapd_ws_sockets[t*2+1] = wake_sds[t][1]; \
560 wake_sds[t][0] = t*2; \
561 wake_sds[t][1] = t*2+1; \
562 slap_daemon[t].sd_nfds = t*2 + 2; \
565 # define SLAP_SOCK_DESTROY(t) do { \
566 ch_free( slapd_ws_sockets ); slapd_ws_sockets = NULL; \
567 slap_daemon[t].sd_flags = NULL; \
568 slap_daemon[t].sd_rflags = NULL; \
569 ldap_pvt_thread_mutex_destroy( &slapd_ws_mutex ); \
572 # define SLAP_SOCK_IS_ACTIVE(t,fd) ( slap_daemon[t].sd_flags[fd] & SD_ACTIVE )
573 # define SLAP_SOCK_IS_READ(t,fd) ( slap_daemon[t].sd_flags[fd] & SD_READ )
574 # define SLAP_SOCK_IS_WRITE(t,fd) ( slap_daemon[t].sd_flags[fd] & SD_WRITE )
575 # define SLAP_SOCK_NOT_ACTIVE(t,fd) (!slap_daemon[t].sd_flags[fd])
577 # define SLAP_SOCK_SET_READ(t,fd) ( slap_daemon[t].sd_flags[fd] |= SD_READ )
578 # define SLAP_SOCK_SET_WRITE(t,fd) ( slap_daemon[t].sd_flags[fd] |= SD_WRITE )
580 # define SLAP_SELECT_ADDTEST(t,s) do { \
581 if ((s) >= slap_daemon[t].sd_nfds) slap_daemon[t].sd_nfds = (s)+1; \
584 # define SLAP_SOCK_CLR_READ(t,fd) ( slap_daemon[t].sd_flags[fd] &= ~SD_READ )
585 # define SLAP_SOCK_CLR_WRITE(t,fd) ( slap_daemon[t].sd_flags[fd] &= ~SD_WRITE )
587 # define SLAP_SOCK_ADD(t,s, l) do { \
588 SLAP_SELECT_ADDTEST(t,(s)); \
589 slap_daemon[t].sd_flags[s] = SD_ACTIVE|SD_READ; \
592 # define SLAP_SOCK_DEL(t,s) do { \
593 slap_daemon[t].sd_flags[s] = 0; \
594 slapd_sockdel( s ); \
597 # else /* !HAVE_WINSOCK */
599 /**************************************
600 * Use select system call - select(2) *
601 **************************************/
602 # define SLAP_EVENT_FNAME "select"
604 # define SLAP_EVENTS_ARE_INDEXED 1
605 # define SLAP_EVENT_DECL fd_set readfds, writefds
607 # define SLAP_EVENT_INIT(t) do { \
608 AC_MEMCPY( &readfds, &slap_daemon[t].sd_readers, sizeof(fd_set) ); \
610 AC_MEMCPY( &writefds, &slap_daemon[t].sd_writers, sizeof(fd_set) ); \
612 FD_ZERO( &writefds ); \
617 # define SLAP_SELECT_CHK_SETSIZE do { \
618 if (dtblsize > FD_SETSIZE) dtblsize = FD_SETSIZE; \
620 # else /* ! FD_SETSIZE */
621 # define SLAP_SELECT_CHK_SETSIZE do { ; } while (0)
622 # endif /* ! FD_SETSIZE */
624 # define SLAP_SOCK_INIT(t) do { \
625 SLAP_SELECT_CHK_SETSIZE; \
626 FD_ZERO(&slap_daemon[t].sd_actives); \
627 FD_ZERO(&slap_daemon[t].sd_readers); \
628 FD_ZERO(&slap_daemon[t].sd_writers); \
631 # define SLAP_SOCK_DESTROY(t)
633 # define SLAP_SOCK_IS_ACTIVE(t,fd) FD_ISSET((fd), &slap_daemon[t].sd_actives)
634 # define SLAP_SOCK_IS_READ(t,fd) FD_ISSET((fd), &slap_daemon[t].sd_readers)
635 # define SLAP_SOCK_IS_WRITE(t,fd) FD_ISSET((fd), &slap_daemon[t].sd_writers)
637 # define SLAP_SOCK_NOT_ACTIVE(t,fd) (!SLAP_SOCK_IS_ACTIVE(t,fd) && \
638 !SLAP_SOCK_IS_READ(t,fd) && !SLAP_SOCK_IS_WRITE(t,fd))
640 # define SLAP_SOCK_SET_READ(t,fd) FD_SET((fd), &slap_daemon[t].sd_readers)
641 # define SLAP_SOCK_SET_WRITE(t,fd) FD_SET((fd), &slap_daemon[t].sd_writers)
643 # define SLAP_EVENT_MAX(t) slap_daemon[t].sd_nfds
644 # define SLAP_SELECT_ADDTEST(t,s) do { \
645 if ((s) >= slap_daemon[t].sd_nfds) slap_daemon[t].sd_nfds = (s)+1; \
648 # define SLAP_SOCK_CLR_READ(t,fd) FD_CLR((fd), &slap_daemon[t].sd_readers)
649 # define SLAP_SOCK_CLR_WRITE(t,fd) FD_CLR((fd), &slap_daemon[t].sd_writers)
651 # define SLAP_SOCK_ADD(t,s, l) do { \
652 SLAP_SELECT_ADDTEST(t,(s)); \
653 FD_SET((s), &slap_daemon[t].sd_actives); \
654 FD_SET((s), &slap_daemon[t].sd_readers); \
657 # define SLAP_SOCK_DEL(t,s) do { \
658 FD_CLR((s), &slap_daemon[t].sd_actives); \
659 FD_CLR((s), &slap_daemon[t].sd_readers); \
660 FD_CLR((s), &slap_daemon[t].sd_writers); \
663 # define SLAP_EVENT_IS_READ(fd) FD_ISSET((fd), &readfds)
664 # define SLAP_EVENT_IS_WRITE(fd) FD_ISSET((fd), &writefds)
666 # define SLAP_EVENT_CLR_READ(fd) FD_CLR((fd), &readfds)
667 # define SLAP_EVENT_CLR_WRITE(fd) FD_CLR((fd), &writefds)
669 # define SLAP_EVENT_WAIT(t, tvp, nsp) do { \
670 *(nsp) = select( SLAP_EVENT_MAX(t), &readfds, \
671 nwriters > 0 ? &writefds : NULL, NULL, (tvp) ); \
673 # endif /* !HAVE_WINSOCK */
674 #endif /* ! epoll && ! /dev/poll */
678 * SLP related functions
682 #define LDAP_SRVTYPE_PREFIX "service:ldap://"
683 #define LDAPS_SRVTYPE_PREFIX "service:ldaps://"
684 static char** slapd_srvurls = NULL;
685 static SLPHandle slapd_hslp = 0;
686 int slapd_register_slp = 0;
687 const char *slapd_slp_attrs = NULL;
689 static SLPError slapd_slp_cookie;
692 slapd_slp_init( const char* urls )
697 slapd_srvurls = ldap_str2charray( urls, " " );
699 if ( slapd_srvurls == NULL ) return;
701 /* find and expand INADDR_ANY URLs */
702 for ( i = 0; slapd_srvurls[i] != NULL; i++ ) {
703 if ( strcmp( slapd_srvurls[i], "ldap:///" ) == 0 ) {
704 slapd_srvurls[i] = (char *) ch_realloc( slapd_srvurls[i],
705 global_host_bv.bv_len +
706 sizeof( LDAP_SRVTYPE_PREFIX ) );
707 strcpy( lutil_strcopy(slapd_srvurls[i],
708 LDAP_SRVTYPE_PREFIX ), global_host_bv.bv_val );
709 } else if ( strcmp( slapd_srvurls[i], "ldaps:///" ) == 0 ) {
710 slapd_srvurls[i] = (char *) ch_realloc( slapd_srvurls[i],
711 global_host_bv.bv_len +
712 sizeof( LDAPS_SRVTYPE_PREFIX ) );
713 strcpy( lutil_strcopy(slapd_srvurls[i],
714 LDAPS_SRVTYPE_PREFIX ), global_host_bv.bv_val );
718 /* open the SLP handle */
719 err = SLPOpen( "en", 0, &slapd_hslp );
721 if ( err != SLP_OK ) {
722 Debug( LDAP_DEBUG_CONNS, "daemon: SLPOpen() failed with %ld\n",
728 slapd_slp_deinit( void )
730 if ( slapd_srvurls == NULL ) return;
732 ldap_charray_free( slapd_srvurls );
733 slapd_srvurls = NULL;
735 /* close the SLP handle */
736 SLPClose( slapd_hslp );
745 /* return the error code in the cookie */
746 *(SLPError*)cookie = errcode;
755 if ( slapd_srvurls == NULL ) return;
757 for ( i = 0; slapd_srvurls[i] != NULL; i++ ) {
758 if ( strncmp( slapd_srvurls[i], LDAP_SRVTYPE_PREFIX,
759 sizeof( LDAP_SRVTYPE_PREFIX ) - 1 ) == 0 ||
760 strncmp( slapd_srvurls[i], LDAPS_SRVTYPE_PREFIX,
761 sizeof( LDAPS_SRVTYPE_PREFIX ) - 1 ) == 0 )
763 err = SLPReg( slapd_hslp,
765 SLP_LIFETIME_MAXIMUM,
767 (slapd_slp_attrs) ? slapd_slp_attrs : "",
772 if ( err != SLP_OK || slapd_slp_cookie != SLP_OK ) {
773 Debug( LDAP_DEBUG_CONNS,
774 "daemon: SLPReg(%s) failed with %ld, cookie = %ld\n",
775 slapd_srvurls[i], (long)err, (long)slapd_slp_cookie );
782 slapd_slp_dereg( void )
787 if ( slapd_srvurls == NULL ) return;
789 for ( i = 0; slapd_srvurls[i] != NULL; i++ ) {
790 err = SLPDereg( slapd_hslp,
795 if ( err != SLP_OK || slapd_slp_cookie != SLP_OK ) {
796 Debug( LDAP_DEBUG_CONNS,
797 "daemon: SLPDereg(%s) failed with %ld, cookie = %ld\n",
798 slapd_srvurls[i], (long)err, (long)slapd_slp_cookie );
802 #endif /* HAVE_SLP */
805 /* Manage the descriptor to socket table */
807 slapd_socknew( ber_socket_t s )
810 ldap_pvt_thread_mutex_lock( &slapd_ws_mutex );
811 for ( i = 0; i < dtblsize && slapd_ws_sockets[i] != INVALID_SOCKET; i++ );
812 if ( i == dtblsize ) {
813 WSASetLastError( WSAEMFILE );
815 slapd_ws_sockets[i] = s;
817 ldap_pvt_thread_mutex_unlock( &slapd_ws_mutex );
822 slapd_sockdel( ber_socket_t s )
824 ldap_pvt_thread_mutex_lock( &slapd_ws_mutex );
825 slapd_ws_sockets[s] = INVALID_SOCKET;
826 ldap_pvt_thread_mutex_unlock( &slapd_ws_mutex );
830 slapd_sock2fd( ber_socket_t s )
833 for ( i=0; i<dtblsize && slapd_ws_sockets[i] != s; i++);
841 * Add a descriptor to daemon control
843 * If isactive, the descriptor is a live server session and is subject
844 * to idletimeout control. Otherwise, the descriptor is a passive
845 * listener or an outbound client session, and not subject to
846 * idletimeout. The underlying event handler may record the Listener
847 * argument to differentiate Listener's from real sessions.
850 slapd_add( ber_socket_t s, int isactive, Listener *sl, int id )
854 ldap_pvt_thread_mutex_lock( &slap_daemon[id].sd_mutex );
856 assert( SLAP_SOCK_NOT_ACTIVE(id, s) );
858 if ( isactive ) slap_daemon[id].sd_nactives++;
860 SLAP_SOCK_ADD(id, s, sl);
862 Debug( LDAP_DEBUG_CONNS, "daemon: added %ldr%s listener=%p\n",
863 (long) s, isactive ? " (active)" : "", (void *)sl );
865 ldap_pvt_thread_mutex_unlock( &slap_daemon[id].sd_mutex );
871 * Remove the descriptor from daemon control
883 int id = DAEMON_ID(s);
886 ldap_pvt_thread_mutex_lock( &slap_daemon[id].sd_mutex );
888 assert( SLAP_SOCK_IS_ACTIVE( id, s ));
890 if ( wasactive ) slap_daemon[id].sd_nactives--;
892 waswriter = SLAP_SOCK_IS_WRITE(id, s);
893 wasreader = SLAP_SOCK_IS_READ(id, s);
895 Debug( LDAP_DEBUG_CONNS, "daemon: removing %ld%s%s\n",
897 wasreader ? "r" : "",
898 waswriter ? "w" : "" );
900 if ( waswriter ) slap_daemon[id].sd_nwriters--;
902 SLAP_SOCK_DEL(id, s);
905 ber_sockbuf_free(sb);
907 /* If we ran out of file descriptors, we dropped a listener from
908 * the select() loop. Now that we're removing a session from our
909 * control, we can try to resume a dropped listener to use.
911 if ( emfile && listening ) {
913 for ( i = 0; slap_listeners[i] != NULL; i++ ) {
914 Listener *lr = slap_listeners[i];
916 if ( lr->sl_sd == AC_SOCKET_INVALID ) continue;
917 if ( lr->sl_sd == s ) continue;
921 if ( DAEMON_ID(lr->sl_sd) != id )
922 WAKE_LISTENER(DAEMON_ID(lr->sl_sd), wake);
926 /* Walked the entire list without enabling anything; emfile
927 * counter is stale. Reset it.
929 if ( slap_listeners[i] == NULL ) emfile = 0;
931 ldap_pvt_thread_mutex_unlock( &slap_daemon[id].sd_mutex );
932 WAKE_LISTENER(id, wake || slapd_gentle_shutdown == 2);
936 slapd_clr_write( ber_socket_t s, int wake )
938 int id = DAEMON_ID(s);
939 ldap_pvt_thread_mutex_lock( &slap_daemon[id].sd_mutex );
941 if ( SLAP_SOCK_IS_WRITE( id, s )) {
942 assert( SLAP_SOCK_IS_ACTIVE( id, s ));
944 SLAP_SOCK_CLR_WRITE( id, s );
945 slap_daemon[id].sd_nwriters--;
948 ldap_pvt_thread_mutex_unlock( &slap_daemon[id].sd_mutex );
949 WAKE_LISTENER(id,wake);
953 slapd_set_write( ber_socket_t s, int wake )
955 int id = DAEMON_ID(s);
956 ldap_pvt_thread_mutex_lock( &slap_daemon[id].sd_mutex );
958 assert( SLAP_SOCK_IS_ACTIVE( id, s ));
960 if ( !SLAP_SOCK_IS_WRITE( id, s )) {
961 SLAP_SOCK_SET_WRITE( id, s );
962 slap_daemon[id].sd_nwriters++;
964 if (( wake & 2 ) && global_writetimeout && !chk_writetime ) {
966 ldap_pvt_thread_mutex_lock( &slap_daemon[0].sd_mutex );
968 chk_writetime = slap_get_time();
970 ldap_pvt_thread_mutex_unlock( &slap_daemon[0].sd_mutex );
973 ldap_pvt_thread_mutex_unlock( &slap_daemon[id].sd_mutex );
974 WAKE_LISTENER(id,wake);
978 slapd_clr_read( ber_socket_t s, int wake )
981 int id = DAEMON_ID(s);
982 ldap_pvt_thread_mutex_lock( &slap_daemon[id].sd_mutex );
984 if ( SLAP_SOCK_IS_ACTIVE( id, s )) {
985 SLAP_SOCK_CLR_READ( id, s );
988 ldap_pvt_thread_mutex_unlock( &slap_daemon[id].sd_mutex );
990 WAKE_LISTENER(id,wake);
995 slapd_set_read( ber_socket_t s, int wake )
998 int id = DAEMON_ID(s);
999 ldap_pvt_thread_mutex_lock( &slap_daemon[id].sd_mutex );
1001 if( SLAP_SOCK_IS_ACTIVE( id, s ) && !SLAP_SOCK_IS_READ( id, s )) {
1002 SLAP_SOCK_SET_READ( id, s );
1006 ldap_pvt_thread_mutex_unlock( &slap_daemon[id].sd_mutex );
1008 WAKE_LISTENER(id,wake);
1012 slapd_get_writetime()
1015 ldap_pvt_thread_mutex_lock( &slap_daemon[0].sd_mutex );
1016 cur = chk_writetime;
1017 ldap_pvt_thread_mutex_unlock( &slap_daemon[0].sd_mutex );
1022 slapd_clr_writetime( time_t old )
1024 ldap_pvt_thread_mutex_lock( &slap_daemon[0].sd_mutex );
1025 if ( chk_writetime == old )
1027 ldap_pvt_thread_mutex_unlock( &slap_daemon[0].sd_mutex );
1031 slapd_close( ber_socket_t s )
1033 Debug( LDAP_DEBUG_CONNS, "daemon: closing %ld\n",
1035 tcp_close( SLAP_FD2SOCK(s) );
1042 slap_free_listener_addresses( struct sockaddr **sal )
1044 struct sockaddr **sap;
1045 if (sal == NULL) return;
1046 for (sap = sal; *sap != NULL; sap++) ch_free(*sap);
1050 #if defined(LDAP_PF_LOCAL) || defined(SLAP_X_LISTENER_MOD)
1059 assert( exts != NULL );
1060 assert( perms != NULL );
1061 assert( crit != NULL );
1064 for ( i = 0; exts[ i ]; i++ ) {
1065 char *type = exts[ i ];
1068 if ( type[ 0 ] == '!' ) {
1073 if ( strncasecmp( type, LDAPI_MOD_URLEXT "=",
1074 sizeof(LDAPI_MOD_URLEXT "=") - 1 ) == 0 )
1076 char *value = type + ( sizeof(LDAPI_MOD_URLEXT "=") - 1 );
1080 switch (strlen(value)) {
1082 /* skip leading '0' */
1083 if ( value[ 0 ] != '0' ) return LDAP_OTHER;
1087 for ( j = 0; j < 3; j++) {
1090 v = value[ j ] - '0';
1092 if ( v < 0 || v > 7 ) return LDAP_OTHER;
1099 for ( j = 1; j < 10; j++ ) {
1100 static mode_t m[] = { 0,
1101 S_IRUSR, S_IWUSR, S_IXUSR,
1102 S_IRGRP, S_IWGRP, S_IXGRP,
1103 S_IROTH, S_IWOTH, S_IXOTH
1105 static const char c[] = "-rwxrwxrwx";
1107 if ( value[ j ] == c[ j ] ) {
1110 } else if ( value[ j ] != '-' ) {
1123 return LDAP_SUCCESS;
1129 #endif /* LDAP_PF_LOCAL || SLAP_X_LISTENER_MOD */
1131 /* port = 0 indicates AF_LOCAL */
1133 slap_get_listener_addresses(
1135 unsigned short port,
1136 struct sockaddr ***sal )
1138 struct sockaddr **sap;
1140 #ifdef LDAP_PF_LOCAL
1142 *sal = ch_malloc(2 * sizeof(void *));
1143 if (*sal == NULL) return -1;
1146 *sap = ch_malloc(sizeof(struct sockaddr_un));
1147 if (*sap == NULL) goto errexit;
1151 (sizeof(((struct sockaddr_un *)*sap)->sun_path) - 1) )
1153 Debug( LDAP_DEBUG_ANY,
1154 "daemon: domain socket path (%s) too long in URL",
1159 (void)memset( (void *)*sap, '\0', sizeof(struct sockaddr_un) );
1160 (*sap)->sa_family = AF_LOCAL;
1161 strcpy( ((struct sockaddr_un *)*sap)->sun_path, host );
1163 #endif /* LDAP_PF_LOCAL */
1165 #ifdef HAVE_GETADDRINFO
1166 struct addrinfo hints, *res, *sai;
1170 memset( &hints, '\0', sizeof(hints) );
1171 hints.ai_flags = AI_PASSIVE;
1172 hints.ai_socktype = SOCK_STREAM;
1173 hints.ai_family = slap_inet4or6;
1174 snprintf(serv, sizeof serv, "%d", port);
1176 if ( (err = getaddrinfo(host, serv, &hints, &res)) ) {
1177 Debug( LDAP_DEBUG_ANY, "daemon: getaddrinfo() failed: %s\n",
1178 AC_GAI_STRERROR(err), 0, 0);
1183 for (n=2; (sai = sai->ai_next) != NULL; n++) {
1186 *sal = ch_calloc(n, sizeof(void *));
1187 if (*sal == NULL) return -1;
1192 for ( sai=res; sai; sai=sai->ai_next ) {
1193 if( sai->ai_addr == NULL ) {
1194 Debug( LDAP_DEBUG_ANY, "slap_get_listener_addresses: "
1195 "getaddrinfo ai_addr is NULL?\n", 0, 0, 0 );
1200 switch (sai->ai_family) {
1201 # ifdef LDAP_PF_INET6
1203 *sap = ch_malloc(sizeof(struct sockaddr_in6));
1208 *(struct sockaddr_in6 *)*sap =
1209 *((struct sockaddr_in6 *)sai->ai_addr);
1211 # endif /* LDAP_PF_INET6 */
1213 *sap = ch_malloc(sizeof(struct sockaddr_in));
1218 *(struct sockaddr_in *)*sap =
1219 *((struct sockaddr_in *)sai->ai_addr);
1227 (*sap)->sa_family = sai->ai_family;
1235 #else /* ! HAVE_GETADDRINFO */
1238 struct hostent *he = NULL;
1240 if ( host == NULL ) {
1241 in.s_addr = htonl(INADDR_ANY);
1243 } else if ( !inet_aton( host, &in ) ) {
1244 he = gethostbyname( host );
1246 Debug( LDAP_DEBUG_ANY,
1247 "daemon: invalid host %s", host, 0, 0);
1250 for (n = 0; he->h_addr_list[n]; n++) /* empty */;
1253 *sal = ch_malloc((n+1) * sizeof(void *));
1254 if (*sal == NULL) return -1;
1257 for ( i = 0; i<n; i++ ) {
1258 sap[i] = ch_malloc(sizeof(struct sockaddr_in));
1259 if (*sap == NULL) goto errexit;
1261 (void)memset( (void *)sap[i], '\0', sizeof(struct sockaddr_in) );
1262 sap[i]->sa_family = AF_INET;
1263 ((struct sockaddr_in *)sap[i])->sin_port = htons(port);
1264 AC_MEMCPY( &((struct sockaddr_in *)sap[i])->sin_addr,
1265 he ? (struct in_addr *)he->h_addr_list[i] : &in,
1266 sizeof(struct in_addr) );
1269 #endif /* ! HAVE_GETADDRINFO */
1275 slap_free_listener_addresses(*sal);
1289 unsigned short port;
1290 int err, addrlen = 0;
1291 struct sockaddr **sal, **psal;
1292 int socktype = SOCK_STREAM; /* default to COTS */
1295 #if defined(LDAP_PF_LOCAL) || defined(SLAP_X_LISTENER_MOD)
1300 #endif /* LDAP_PF_LOCAL || SLAP_X_LISTENER_MOD */
1302 rc = ldap_url_parse( url, &lud );
1304 if( rc != LDAP_URL_SUCCESS ) {
1305 Debug( LDAP_DEBUG_ANY,
1306 "daemon: listen URL \"%s\" parse error=%d\n",
1311 l.sl_url.bv_val = NULL;
1316 if( ldap_pvt_url_scheme2tls( lud->lud_scheme ) ) {
1317 Debug( LDAP_DEBUG_ANY, "daemon: TLS not supported (%s)\n",
1319 ldap_free_urldesc( lud );
1323 if(! lud->lud_port ) lud->lud_port = LDAP_PORT;
1325 #else /* HAVE_TLS */
1326 l.sl_is_tls = ldap_pvt_url_scheme2tls( lud->lud_scheme );
1328 if(! lud->lud_port ) {
1329 lud->lud_port = l.sl_is_tls ? LDAPS_PORT : LDAP_PORT;
1331 #endif /* HAVE_TLS */
1333 #ifdef LDAP_TCP_BUFFER
1336 #endif /* LDAP_TCP_BUFFER */
1338 port = (unsigned short) lud->lud_port;
1340 tmp = ldap_pvt_url_scheme2proto(lud->lud_scheme);
1341 if ( tmp == LDAP_PROTO_IPC ) {
1342 #ifdef LDAP_PF_LOCAL
1343 if ( lud->lud_host == NULL || lud->lud_host[0] == '\0' ) {
1344 err = slap_get_listener_addresses(LDAPI_SOCK, 0, &sal);
1346 err = slap_get_listener_addresses(lud->lud_host, 0, &sal);
1348 #else /* ! LDAP_PF_LOCAL */
1350 Debug( LDAP_DEBUG_ANY, "daemon: URL scheme not supported: %s",
1352 ldap_free_urldesc( lud );
1354 #endif /* ! LDAP_PF_LOCAL */
1356 if( lud->lud_host == NULL || lud->lud_host[0] == '\0'
1357 || strcmp(lud->lud_host, "*") == 0 )
1359 err = slap_get_listener_addresses(NULL, port, &sal);
1361 err = slap_get_listener_addresses(lud->lud_host, port, &sal);
1365 #ifdef LDAP_CONNECTIONLESS
1366 l.sl_is_udp = ( tmp == LDAP_PROTO_UDP );
1367 #endif /* LDAP_CONNECTIONLESS */
1369 #if defined(LDAP_PF_LOCAL) || defined(SLAP_X_LISTENER_MOD)
1370 if ( lud->lud_exts ) {
1371 err = get_url_perms( lud->lud_exts, &l.sl_perms, &crit );
1373 l.sl_perms = S_IRWXU | S_IRWXO;
1375 #endif /* LDAP_PF_LOCAL || SLAP_X_LISTENER_MOD */
1377 ldap_free_urldesc( lud );
1378 if ( err ) return -1;
1380 /* If we got more than one address returned, we need to make space
1381 * for it in the slap_listeners array.
1383 for ( num=0; sal[num]; num++ ) /* empty */;
1385 *listeners += num-1;
1386 slap_listeners = ch_realloc( slap_listeners,
1387 (*listeners + 1) * sizeof(Listener *) );
1391 while ( *sal != NULL ) {
1393 switch( (*sal)->sa_family ) {
1397 #ifdef LDAP_PF_INET6
1401 #endif /* LDAP_PF_INET6 */
1402 #ifdef LDAP_PF_LOCAL
1406 #endif /* LDAP_PF_LOCAL */
1412 #ifdef LDAP_CONNECTIONLESS
1413 if( l.sl_is_udp ) socktype = SOCK_DGRAM;
1414 #endif /* LDAP_CONNECTIONLESS */
1416 s = socket( (*sal)->sa_family, socktype, 0);
1417 if ( s == AC_SOCKET_INVALID ) {
1418 int err = sock_errno();
1419 Debug( LDAP_DEBUG_ANY,
1420 "daemon: %s socket() failed errno=%d (%s)\n",
1421 af, err, sock_errstr(err) );
1425 l.sl_sd = SLAP_SOCKNEW( s );
1427 if ( l.sl_sd >= dtblsize ) {
1428 Debug( LDAP_DEBUG_ANY,
1429 "daemon: listener descriptor %ld is too great %ld\n",
1430 (long) l.sl_sd, (long) dtblsize, 0 );
1436 #ifdef LDAP_PF_LOCAL
1437 if ( (*sal)->sa_family == AF_LOCAL ) {
1438 unlink( ((struct sockaddr_un *)*sal)->sun_path );
1440 #endif /* LDAP_PF_LOCAL */
1443 /* enable address reuse */
1445 rc = setsockopt( s, SOL_SOCKET, SO_REUSEADDR,
1446 (char *) &tmp, sizeof(tmp) );
1447 if ( rc == AC_SOCKET_ERROR ) {
1448 int err = sock_errno();
1449 Debug( LDAP_DEBUG_ANY, "slapd(%ld): "
1450 "setsockopt(SO_REUSEADDR) failed errno=%d (%s)\n",
1451 (long) l.sl_sd, err, sock_errstr(err) );
1453 #endif /* SO_REUSEADDR */
1456 switch( (*sal)->sa_family ) {
1458 addrlen = sizeof(struct sockaddr_in);
1460 #ifdef LDAP_PF_INET6
1463 /* Try to use IPv6 sockets for IPv6 only */
1465 rc = setsockopt( s , IPPROTO_IPV6, IPV6_V6ONLY,
1466 (char *) &tmp, sizeof(tmp) );
1467 if ( rc == AC_SOCKET_ERROR ) {
1468 int err = sock_errno();
1469 Debug( LDAP_DEBUG_ANY, "slapd(%ld): "
1470 "setsockopt(IPV6_V6ONLY) failed errno=%d (%s)\n",
1471 (long) l.sl_sd, err, sock_errstr(err) );
1473 #endif /* IPV6_V6ONLY */
1474 addrlen = sizeof(struct sockaddr_in6);
1476 #endif /* LDAP_PF_INET6 */
1478 #ifdef LDAP_PF_LOCAL
1483 setsockopt( s, 0, LOCAL_CREDS, &one, sizeof( one ) );
1485 #endif /* LOCAL_CREDS */
1487 addrlen = sizeof( struct sockaddr_un );
1489 #endif /* LDAP_PF_LOCAL */
1492 #ifdef LDAP_PF_LOCAL
1493 /* create socket with all permissions set for those systems
1494 * that honor permissions on sockets (e.g. Linux); typically,
1495 * only write is required. To exploit filesystem permissions,
1496 * place the socket in a directory and use directory's
1497 * permissions. Need write perms to the directory to
1498 * create/unlink the socket; likely need exec perms to access
1499 * the socket (ITS#4709) */
1501 mode_t old_umask = 0;
1503 if ( (*sal)->sa_family == AF_LOCAL ) {
1504 old_umask = umask( 0 );
1506 #endif /* LDAP_PF_LOCAL */
1507 rc = bind( s, *sal, addrlen );
1508 #ifdef LDAP_PF_LOCAL
1509 if ( old_umask != 0 ) {
1513 #endif /* LDAP_PF_LOCAL */
1516 Debug( LDAP_DEBUG_ANY,
1517 "daemon: bind(%ld) failed errno=%d (%s)\n",
1518 (long)l.sl_sd, err, sock_errstr( err ) );
1524 switch ( (*sal)->sa_family ) {
1525 #ifdef LDAP_PF_LOCAL
1527 char *addr = ((struct sockaddr_un *)*sal)->sun_path;
1528 l.sl_name.bv_len = strlen(addr) + sizeof("PATH=") - 1;
1529 l.sl_name.bv_val = ber_memalloc( l.sl_name.bv_len + 1 );
1530 snprintf( l.sl_name.bv_val, l.sl_name.bv_len + 1,
1533 #endif /* LDAP_PF_LOCAL */
1537 #if defined( HAVE_GETADDRINFO ) && defined( HAVE_INET_NTOP )
1538 char addr[INET_ADDRSTRLEN];
1539 inet_ntop( AF_INET, &((struct sockaddr_in *)*sal)->sin_addr,
1540 addr, sizeof(addr) );
1542 #else /* ! HAVE_GETADDRINFO || ! HAVE_INET_NTOP */
1543 s = inet_ntoa( ((struct sockaddr_in *) *sal)->sin_addr );
1544 #endif /* ! HAVE_GETADDRINFO || ! HAVE_INET_NTOP */
1545 port = ntohs( ((struct sockaddr_in *)*sal) ->sin_port );
1547 ber_memalloc( sizeof("IP=255.255.255.255:65535") );
1548 snprintf( l.sl_name.bv_val, sizeof("IP=255.255.255.255:65535"),
1550 s != NULL ? s : SLAP_STRING_UNKNOWN, port );
1551 l.sl_name.bv_len = strlen( l.sl_name.bv_val );
1554 #ifdef LDAP_PF_INET6
1556 char addr[INET6_ADDRSTRLEN];
1557 inet_ntop( AF_INET6, &((struct sockaddr_in6 *)*sal)->sin6_addr,
1559 port = ntohs( ((struct sockaddr_in6 *)*sal)->sin6_port );
1560 l.sl_name.bv_len = strlen(addr) + sizeof("IP=[]:65535");
1561 l.sl_name.bv_val = ber_memalloc( l.sl_name.bv_len );
1562 snprintf( l.sl_name.bv_val, l.sl_name.bv_len, "IP=[%s]:%d",
1564 l.sl_name.bv_len = strlen( l.sl_name.bv_val );
1566 #endif /* LDAP_PF_INET6 */
1569 Debug( LDAP_DEBUG_ANY, "daemon: unsupported address family (%d)\n",
1570 (int) (*sal)->sa_family, 0, 0 );
1574 AC_MEMCPY(&l.sl_sa, *sal, addrlen);
1575 ber_str2bv( url, 0, 1, &l.sl_url);
1576 li = ch_malloc( sizeof( Listener ) );
1578 slap_listeners[*cur] = li;
1583 slap_free_listener_addresses(psal);
1585 if ( l.sl_url.bv_val == NULL ) {
1586 Debug( LDAP_DEBUG_TRACE,
1587 "slap_open_listener: failed on %s\n", url, 0, 0 );
1591 Debug( LDAP_DEBUG_TRACE, "daemon: listener initialized %s\n",
1592 l.sl_url.bv_val, 0, 0 );
1596 static int sockinit(void);
1597 static int sockdestroy(void);
1599 static int daemon_inited = 0;
1602 slapd_daemon_init( const char *urls )
1607 Debug( LDAP_DEBUG_ARGS, "daemon_init: %s\n",
1608 urls ? urls : "<null>", 0, 0 );
1610 for ( i=0; i<MAX_DAEMON_THREADS; i++ ) {
1611 wake_sds[i][0] = AC_SOCKET_INVALID;
1612 wake_sds[i][1] = AC_SOCKET_INVALID;
1615 ldap_pvt_thread_mutex_init( &slap_daemon[0].sd_mutex );
1617 ldap_pvt_thread_mutex_init( &sd_tcpd_mutex );
1618 #endif /* TCP Wrappers */
1622 if( (rc = sockinit()) != 0 ) return rc;
1625 dtblsize = sysconf( _SC_OPEN_MAX );
1626 #elif defined(HAVE_GETDTABLESIZE)
1627 dtblsize = getdtablesize();
1628 #else /* ! HAVE_SYSCONF && ! HAVE_GETDTABLESIZE */
1629 dtblsize = FD_SETSIZE;
1630 #endif /* ! HAVE_SYSCONF && ! HAVE_GETDTABLESIZE */
1632 /* open a pipe (or something equivalent connected to itself).
1633 * we write a byte on this fd whenever we catch a signal. The main
1634 * loop will be select'ing on this socket, and will wake up when
1635 * this byte arrives.
1637 if( (rc = lutil_pair( wake_sds[0] )) < 0 ) {
1638 Debug( LDAP_DEBUG_ANY,
1639 "daemon: lutil_pair() failed rc=%d\n", rc, 0, 0 );
1642 ber_pvt_socket_set_nonblock( wake_sds[0][1], 1 );
1646 if( urls == NULL ) urls = "ldap:///";
1648 u = ldap_str2charray( urls, " " );
1650 if( u == NULL || u[0] == NULL ) {
1651 Debug( LDAP_DEBUG_ANY, "daemon_init: no urls (%s) provided.\n",
1654 ldap_charray_free( u );
1658 for( i=0; u[i] != NULL; i++ ) {
1659 Debug( LDAP_DEBUG_TRACE, "daemon_init: listen on %s\n",
1664 Debug( LDAP_DEBUG_ANY, "daemon_init: no listeners to open (%s)\n",
1666 ldap_charray_free( u );
1670 Debug( LDAP_DEBUG_TRACE, "daemon_init: %d listeners to open...\n",
1672 slap_listeners = ch_malloc( (i+1)*sizeof(Listener *) );
1674 for(n = 0, j = 0; u[n]; n++ ) {
1675 if ( slap_open_listener( u[n], &i, &j ) ) {
1676 ldap_charray_free( u );
1680 slap_listeners[j] = NULL;
1682 Debug( LDAP_DEBUG_TRACE, "daemon_init: %d listeners opened\n",
1687 if( slapd_register_slp ) {
1688 slapd_slp_init( urls );
1691 #endif /* HAVE_SLP */
1693 ldap_charray_free( u );
1700 slapd_daemon_destroy( void )
1702 connections_destroy();
1703 if ( daemon_inited ) {
1706 for ( i=0; i<slapd_daemon_threads; i++ ) {
1708 if ( wake_sds[i][1] != INVALID_SOCKET &&
1709 SLAP_FD2SOCK( wake_sds[i][1] ) != SLAP_FD2SOCK( wake_sds[i][0] ))
1710 #endif /* HAVE_WINSOCK */
1711 tcp_close( SLAP_FD2SOCK(wake_sds[i][1]) );
1713 if ( wake_sds[i][0] != INVALID_SOCKET )
1714 #endif /* HAVE_WINSOCK */
1715 tcp_close( SLAP_FD2SOCK(wake_sds[i][0]) );
1716 ldap_pvt_thread_mutex_destroy( &slap_daemon[i].sd_mutex );
1717 SLAP_SOCK_DESTROY(i);
1721 ldap_pvt_thread_mutex_destroy( &sd_tcpd_mutex );
1722 #endif /* TCP Wrappers */
1727 if( slapd_register_slp ) {
1731 #endif /* HAVE_SLP */
1747 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1748 Listener *lr = slap_listeners[l];
1750 if ( lr->sl_sd != AC_SOCKET_INVALID ) {
1752 lr->sl_sd = AC_SOCKET_INVALID;
1753 if ( remove ) slapd_remove( s, NULL, 0, 0, 0 );
1755 #ifdef LDAP_PF_LOCAL
1756 if ( lr->sl_sa.sa_addr.sa_family == AF_LOCAL ) {
1757 unlink( lr->sl_sa.sa_un_addr.sun_path );
1759 #endif /* LDAP_PF_LOCAL */
1767 destroy_listeners( void )
1769 Listener *lr, **ll = slap_listeners;
1774 while ( (lr = *ll++) != NULL ) {
1775 if ( lr->sl_url.bv_val ) {
1776 ber_memfree( lr->sl_url.bv_val );
1779 if ( lr->sl_name.bv_val ) {
1780 ber_memfree( lr->sl_name.bv_val );
1786 free( slap_listeners );
1787 slap_listeners = NULL;
1796 ber_socket_t s, sfd;
1797 ber_socklen_t len = sizeof(from);
1800 struct berval authid = BER_BVNULL;
1801 #ifdef SLAPD_RLOOKUPS
1802 char hbuf[NI_MAXHOST];
1803 #endif /* SLAPD_RLOOKUPS */
1805 char *dnsname = NULL;
1806 char *peeraddr = NULL;
1807 #ifdef LDAP_PF_LOCAL
1808 char peername[MAXPATHLEN + sizeof("PATH=")];
1809 #ifdef LDAP_PF_LOCAL_SENDMSG
1811 struct berval peerbv = BER_BVNULL;
1813 #elif defined(LDAP_PF_INET6)
1814 char peername[sizeof("IP=[ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff]:65535")];
1815 #else /* ! LDAP_PF_LOCAL && ! LDAP_PF_INET6 */
1816 char peername[sizeof("IP=255.255.255.255:65336")];
1817 #endif /* LDAP_PF_LOCAL */
1821 Debug( LDAP_DEBUG_TRACE,
1822 ">>> slap_listener(%s)\n",
1823 sl->sl_url.bv_val, 0, 0 );
1827 #ifdef LDAP_CONNECTIONLESS
1828 if ( sl->sl_is_udp ) return 1;
1829 #endif /* LDAP_CONNECTIONLESS */
1831 # ifdef LDAP_PF_LOCAL
1832 /* FIXME: apparently accept doesn't fill
1833 * the sun_path sun_path member */
1834 from.sa_un_addr.sun_path[0] = '\0';
1835 # endif /* LDAP_PF_LOCAL */
1837 s = accept( SLAP_FD2SOCK( sl->sl_sd ), (struct sockaddr *) &from, &len );
1839 /* Resume the listener FD to allow concurrent-processing of
1840 * additional incoming connections.
1843 WAKE_LISTENER(DAEMON_ID(sl->sl_sd),1);
1845 if ( s == AC_SOCKET_INVALID ) {
1846 int err = sock_errno();
1857 ldap_pvt_thread_mutex_lock( &slap_daemon[0].sd_mutex );
1859 /* Stop listening until an existing session closes */
1861 ldap_pvt_thread_mutex_unlock( &slap_daemon[0].sd_mutex );
1864 Debug( LDAP_DEBUG_ANY,
1865 "daemon: accept(%ld) failed errno=%d (%s)\n",
1866 (long) sl->sl_sd, err, sock_errstr(err) );
1867 ldap_pvt_thread_yield();
1870 sfd = SLAP_SOCKNEW( s );
1872 /* make sure descriptor number isn't too great */
1873 if ( sfd >= dtblsize ) {
1874 Debug( LDAP_DEBUG_ANY,
1875 "daemon: %ld beyond descriptor table size %ld\n",
1876 (long) sfd, (long) dtblsize, 0 );
1879 ldap_pvt_thread_yield();
1882 tid = DAEMON_ID(sfd);
1885 ldap_pvt_thread_mutex_lock( &slap_daemon[tid].sd_mutex );
1886 /* newly accepted stream should not be in any of the FD SETS */
1887 assert( SLAP_SOCK_NOT_ACTIVE( tid, sfd ));
1888 ldap_pvt_thread_mutex_unlock( &slap_daemon[tid].sd_mutex );
1889 #endif /* LDAP_DEBUG */
1891 #if defined( SO_KEEPALIVE ) || defined( TCP_NODELAY )
1892 #ifdef LDAP_PF_LOCAL
1893 /* for IPv4 and IPv6 sockets only */
1894 if ( from.sa_addr.sa_family != AF_LOCAL )
1895 #endif /* LDAP_PF_LOCAL */
1900 /* enable keep alives */
1902 rc = setsockopt( s, SOL_SOCKET, SO_KEEPALIVE,
1903 (char *) &tmp, sizeof(tmp) );
1904 if ( rc == AC_SOCKET_ERROR ) {
1905 int err = sock_errno();
1906 Debug( LDAP_DEBUG_ANY,
1907 "slapd(%ld): setsockopt(SO_KEEPALIVE) failed "
1908 "errno=%d (%s)\n", (long) sfd, err, sock_errstr(err) );
1910 #endif /* SO_KEEPALIVE */
1912 /* enable no delay */
1914 rc = setsockopt( s, IPPROTO_TCP, TCP_NODELAY,
1915 (char *)&tmp, sizeof(tmp) );
1916 if ( rc == AC_SOCKET_ERROR ) {
1917 int err = sock_errno();
1918 Debug( LDAP_DEBUG_ANY,
1919 "slapd(%ld): setsockopt(TCP_NODELAY) failed "
1920 "errno=%d (%s)\n", (long) sfd, err, sock_errstr(err) );
1922 #endif /* TCP_NODELAY */
1924 #endif /* SO_KEEPALIVE || TCP_NODELAY */
1926 Debug( LDAP_DEBUG_CONNS,
1927 "daemon: listen=%ld, new connection on %ld\n",
1928 (long) sl->sl_sd, (long) sfd, 0 );
1931 switch ( from.sa_addr.sa_family ) {
1932 # ifdef LDAP_PF_LOCAL
1934 cflag |= CONN_IS_IPC;
1936 /* FIXME: apparently accept doesn't fill
1937 * the sun_path sun_path member */
1938 if ( from.sa_un_addr.sun_path[0] == '\0' ) {
1939 AC_MEMCPY( from.sa_un_addr.sun_path,
1940 sl->sl_sa.sa_un_addr.sun_path,
1941 sizeof( from.sa_un_addr.sun_path ) );
1944 sprintf( peername, "PATH=%s", from.sa_un_addr.sun_path );
1950 #ifdef LDAP_PF_LOCAL_SENDMSG
1951 peerbv.bv_val = peerbuf;
1952 peerbv.bv_len = sizeof( peerbuf );
1954 if( LUTIL_GETPEEREID( s, &uid, &gid, &peerbv ) == 0 ) {
1955 authid.bv_val = ch_malloc(
1956 STRLENOF( "gidNumber=4294967295+uidNumber=4294967295,"
1957 "cn=peercred,cn=external,cn=auth" ) + 1 );
1958 authid.bv_len = sprintf( authid.bv_val,
1959 "gidNumber=%d+uidNumber=%d,"
1960 "cn=peercred,cn=external,cn=auth",
1961 (int) gid, (int) uid );
1962 assert( authid.bv_len <=
1963 STRLENOF( "gidNumber=4294967295+uidNumber=4294967295,"
1964 "cn=peercred,cn=external,cn=auth" ) );
1969 #endif /* LDAP_PF_LOCAL */
1971 # ifdef LDAP_PF_INET6
1973 if ( IN6_IS_ADDR_V4MAPPED(&from.sa_in6_addr.sin6_addr) ) {
1974 peeraddr = inet_ntoa( *((struct in_addr *)
1975 &from.sa_in6_addr.sin6_addr.s6_addr[12]) );
1976 sprintf( peername, "IP=%s:%d",
1977 peeraddr != NULL ? peeraddr : SLAP_STRING_UNKNOWN,
1978 (unsigned) ntohs( from.sa_in6_addr.sin6_port ) );
1980 char addr[INET6_ADDRSTRLEN];
1982 peeraddr = (char *) inet_ntop( AF_INET6,
1983 &from.sa_in6_addr.sin6_addr,
1984 addr, sizeof addr );
1985 sprintf( peername, "IP=[%s]:%d",
1986 peeraddr != NULL ? peeraddr : SLAP_STRING_UNKNOWN,
1987 (unsigned) ntohs( from.sa_in6_addr.sin6_port ) );
1990 # endif /* LDAP_PF_INET6 */
1993 peeraddr = inet_ntoa( from.sa_in_addr.sin_addr );
1994 sprintf( peername, "IP=%s:%d",
1995 peeraddr != NULL ? peeraddr : SLAP_STRING_UNKNOWN,
1996 (unsigned) ntohs( from.sa_in_addr.sin_port ) );
2004 if ( ( from.sa_addr.sa_family == AF_INET )
2005 #ifdef LDAP_PF_INET6
2006 || ( from.sa_addr.sa_family == AF_INET6 )
2007 #endif /* LDAP_PF_INET6 */
2011 #ifdef SLAPD_RLOOKUPS
2012 if ( use_reverse_lookup ) {
2014 if (ldap_pvt_get_hname( (const struct sockaddr *)&from, len, hbuf,
2015 sizeof(hbuf), &herr ) == 0) {
2016 ldap_pvt_str2lower( hbuf );
2020 #endif /* SLAPD_RLOOKUPS */
2025 ldap_pvt_thread_mutex_lock( &sd_tcpd_mutex );
2026 rc = hosts_ctl("slapd",
2027 dnsname != NULL ? dnsname : SLAP_STRING_UNKNOWN,
2028 peeraddr != NULL ? peeraddr : SLAP_STRING_UNKNOWN,
2029 SLAP_STRING_UNKNOWN );
2030 ldap_pvt_thread_mutex_unlock( &sd_tcpd_mutex );
2033 Statslog( LDAP_DEBUG_STATS,
2034 "fd=%ld DENIED from %s (%s)\n",
2036 dnsname != NULL ? dnsname : SLAP_STRING_UNKNOWN,
2037 peeraddr != NULL ? peeraddr : SLAP_STRING_UNKNOWN,
2043 #endif /* HAVE_TCPD */
2047 if ( sl->sl_is_tls ) cflag |= CONN_IS_TLS;
2049 c = connection_init(sfd, sl,
2050 dnsname != NULL ? dnsname : SLAP_STRING_UNKNOWN,
2051 peername, cflag, ssf,
2052 authid.bv_val ? &authid : NULL
2053 LDAP_PF_LOCAL_SENDMSG_ARG(&peerbv));
2055 if( authid.bv_val ) ch_free(authid.bv_val);
2058 Debug( LDAP_DEBUG_ANY,
2059 "daemon: connection_init(%ld, %s, %s) failed.\n",
2060 (long) sfd, peername, sl->sl_name.bv_val );
2065 Statslog( LDAP_DEBUG_STATS,
2066 "conn=%ld fd=%ld ACCEPT from %s (%s)\n",
2067 c->c_connid, (long) sfd, peername, sl->sl_name.bv_val,
2074 slap_listener_thread(
2079 Listener *sl = (Listener *)ptr;
2081 rc = slap_listener( sl );
2083 if( rc != LDAP_SUCCESS ) {
2084 Debug( LDAP_DEBUG_ANY,
2085 "slap_listener_thread(%s): failed err=%d",
2086 sl->sl_url.bv_val, rc, 0 );
2093 slap_listener_activate(
2098 Debug( LDAP_DEBUG_TRACE, "slap_listener_activate(%d): %s\n",
2099 sl->sl_sd, sl->sl_busy ? "busy" : "", 0 );
2103 rc = ldap_pvt_thread_pool_submit( &connection_pool,
2104 slap_listener_thread, (void *) sl );
2107 Debug( LDAP_DEBUG_ANY,
2108 "slap_listener_activate(%d): submit failed (%d)\n",
2119 time_t last_idle_check = 0;
2123 #define SLAPD_IDLE_CHECK_LIMIT 4
2125 slapd_add( wake_sds[tid][0], 0, NULL, tid );
2129 /* Init stuff done only by thread 0 */
2131 last_idle_check = slap_get_time();
2133 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
2134 if ( slap_listeners[l]->sl_sd == AC_SOCKET_INVALID ) continue;
2136 #ifdef LDAP_CONNECTIONLESS
2137 /* Since this is connectionless, the data port is the
2138 * listening port. The listen() and accept() calls
2141 if ( slap_listeners[l]->sl_is_udp )
2143 #endif /* LDAP_CONNECTIONLESS */
2145 /* FIXME: TCP-only! */
2146 #ifdef LDAP_TCP_BUFFER
2148 int origsize, size, realsize, rc;
2150 char buf[ SLAP_TEXT_BUFLEN ];
2153 if ( slap_listeners[l]->sl_tcp_rmem > 0 ) {
2154 size = slap_listeners[l]->sl_tcp_rmem;
2155 } else if ( slapd_tcp_rmem > 0 ) {
2156 size = slapd_tcp_rmem;
2160 optlen = sizeof( origsize );
2161 rc = getsockopt( SLAP_FD2SOCK( slap_listeners[l]->sl_sd ),
2168 int err = sock_errno();
2169 Debug( LDAP_DEBUG_ANY,
2170 "slapd_daemon_task: getsockopt(SO_RCVBUF) failed errno=%d (%s)\n",
2171 err, sock_errstr(err), 0 );
2174 optlen = sizeof( size );
2175 rc = setsockopt( SLAP_FD2SOCK( slap_listeners[l]->sl_sd ),
2178 (const void *)&size,
2182 int err = sock_errno();
2183 Debug( LDAP_DEBUG_ANY,
2184 "slapd_daemon_task: setsockopt(SO_RCVBUF) failed errno=%d (%s)\n",
2185 err, sock_errstr(err), 0 );
2188 optlen = sizeof( realsize );
2189 rc = getsockopt( SLAP_FD2SOCK( slap_listeners[l]->sl_sd ),
2196 int err = sock_errno();
2197 Debug( LDAP_DEBUG_ANY,
2198 "slapd_daemon_task: getsockopt(SO_RCVBUF) failed errno=%d (%s)\n",
2199 err, sock_errstr(err), 0 );
2202 snprintf( buf, sizeof( buf ),
2203 "url=%s (#%d) RCVBUF original size=%d requested size=%d real size=%d",
2204 slap_listeners[l]->sl_url.bv_val, l, origsize, size, realsize );
2205 Debug( LDAP_DEBUG_ANY,
2206 "slapd_daemon_task: %s\n",
2211 if ( slap_listeners[l]->sl_tcp_wmem > 0 ) {
2212 size = slap_listeners[l]->sl_tcp_wmem;
2213 } else if ( slapd_tcp_wmem > 0 ) {
2214 size = slapd_tcp_wmem;
2218 optlen = sizeof( origsize );
2219 rc = getsockopt( SLAP_FD2SOCK( slap_listeners[l]->sl_sd ),
2226 int err = sock_errno();
2227 Debug( LDAP_DEBUG_ANY,
2228 "slapd_daemon_task: getsockopt(SO_SNDBUF) failed errno=%d (%s)\n",
2229 err, sock_errstr(err), 0 );
2232 optlen = sizeof( size );
2233 rc = setsockopt( SLAP_FD2SOCK( slap_listeners[l]->sl_sd ),
2236 (const void *)&size,
2240 int err = sock_errno();
2241 Debug( LDAP_DEBUG_ANY,
2242 "slapd_daemon_task: setsockopt(SO_SNDBUF) failed errno=%d (%s)",
2243 err, sock_errstr(err), 0 );
2246 optlen = sizeof( realsize );
2247 rc = getsockopt( SLAP_FD2SOCK( slap_listeners[l]->sl_sd ),
2254 int err = sock_errno();
2255 Debug( LDAP_DEBUG_ANY,
2256 "slapd_daemon_task: getsockopt(SO_SNDBUF) failed errno=%d (%s)\n",
2257 err, sock_errstr(err), 0 );
2260 snprintf( buf, sizeof( buf ),
2261 "url=%s (#%d) SNDBUF original size=%d requested size=%d real size=%d",
2262 slap_listeners[l]->sl_url.bv_val, l, origsize, size, realsize );
2263 Debug( LDAP_DEBUG_ANY,
2264 "slapd_daemon_task: %s\n",
2268 #endif /* LDAP_TCP_BUFFER */
2270 if ( listen( SLAP_FD2SOCK( slap_listeners[l]->sl_sd ), SLAPD_LISTEN_BACKLOG ) == -1 ) {
2271 int err = sock_errno();
2273 #ifdef LDAP_PF_INET6
2274 /* If error is EADDRINUSE, we are trying to listen to INADDR_ANY and
2275 * we are already listening to in6addr_any, then we want to ignore
2276 * this and continue.
2278 if ( err == EADDRINUSE ) {
2280 struct sockaddr_in sa = slap_listeners[l]->sl_sa.sa_in_addr;
2281 struct sockaddr_in6 sa6;
2283 if ( sa.sin_family == AF_INET &&
2284 sa.sin_addr.s_addr == htonl(INADDR_ANY) ) {
2285 for ( i = 0 ; i < l; i++ ) {
2286 sa6 = slap_listeners[i]->sl_sa.sa_in6_addr;
2287 if ( sa6.sin6_family == AF_INET6 &&
2288 !memcmp( &sa6.sin6_addr, &in6addr_any,
2289 sizeof(struct in6_addr) ) )
2296 /* We are already listening to in6addr_any */
2297 Debug( LDAP_DEBUG_CONNS,
2298 "daemon: Attempt to listen to 0.0.0.0 failed, "
2299 "already listening on ::, assuming IPv4 included\n",
2301 slapd_close( slap_listeners[l]->sl_sd );
2302 slap_listeners[l]->sl_sd = AC_SOCKET_INVALID;
2307 #endif /* LDAP_PF_INET6 */
2308 Debug( LDAP_DEBUG_ANY,
2309 "daemon: listen(%s, 5) failed errno=%d (%s)\n",
2310 slap_listeners[l]->sl_url.bv_val, err,
2315 /* make the listening socket non-blocking */
2316 if ( ber_pvt_socket_set_nonblock( SLAP_FD2SOCK( slap_listeners[l]->sl_sd ), 1 ) < 0 ) {
2317 Debug( LDAP_DEBUG_ANY, "slapd_daemon_task: "
2318 "set nonblocking on a listening socket failed\n",
2324 slapd_add( slap_listeners[l]->sl_sd, 0, slap_listeners[l], -1 );
2327 #ifdef HAVE_NT_SERVICE_MANAGER
2328 if ( started_event != NULL ) {
2329 ldap_pvt_thread_cond_signal( &started_event );
2331 #endif /* HAVE_NT_SERVICE_MANAGER */
2335 /* initialization complete. Here comes the loop. */
2337 while ( !slapd_shutdown ) {
2342 #if SLAP_EVENTS_ARE_INDEXED
2343 ber_socket_t nrfds, nwfds;
2344 #endif /* SLAP_EVENTS_ARE_INDEXED */
2345 #define SLAPD_EBADF_LIMIT 16
2352 struct timeval *tvp;
2358 now = slap_get_time();
2360 if ( !tid && ( global_idletimeout > 0 || chk_writetime )) {
2362 /* Set the select timeout.
2363 * Don't just truncate, preserve the fractions of
2364 * seconds to prevent sleeping for zero time.
2366 if ( chk_writetime ) {
2367 tv.tv_sec = global_writetimeout;
2369 if ( difftime( chk_writetime, now ) < 0 )
2372 tv.tv_sec = global_idletimeout / SLAPD_IDLE_CHECK_LIMIT;
2373 tv.tv_usec = global_idletimeout - \
2374 ( tv.tv_sec * SLAPD_IDLE_CHECK_LIMIT );
2375 tv.tv_usec *= 1000000 / SLAPD_IDLE_CHECK_LIMIT;
2376 if ( difftime( last_idle_check +
2377 global_idletimeout/SLAPD_IDLE_CHECK_LIMIT, now ) < 0 )
2381 connections_timeout_idle( now );
2382 last_idle_check = now;
2390 if ( slapd_gentle_shutdown ) {
2391 ber_socket_t active;
2393 if ( !tid && slapd_gentle_shutdown == 1 ) {
2395 Debug( LDAP_DEBUG_ANY, "slapd gentle shutdown\n", 0, 0, 0 );
2396 close_listeners( 1 );
2397 frontendDB->be_restrictops |= SLAP_RESTRICT_OP_WRITES;
2398 LDAP_STAILQ_FOREACH(be, &backendDB, be_next) {
2399 be->be_restrictops |= SLAP_RESTRICT_OP_WRITES;
2401 slapd_gentle_shutdown = 2;
2404 ldap_pvt_thread_mutex_lock( &slap_daemon[tid].sd_mutex );
2405 active = slap_daemon[tid].sd_nactives;
2406 ldap_pvt_thread_mutex_unlock( &slap_daemon[tid].sd_mutex );
2408 if ( active == 0 ) {
2410 for ( l=1; l<slapd_daemon_threads; l++ ) {
2411 ldap_pvt_thread_mutex_lock( &slap_daemon[l].sd_mutex );
2412 active += slap_daemon[l].sd_nactives;
2413 ldap_pvt_thread_mutex_unlock( &slap_daemon[l].sd_mutex );
2425 ldap_pvt_thread_mutex_lock( &slap_daemon[tid].sd_mutex );
2427 nwriters = slap_daemon[tid].sd_nwriters;
2430 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
2431 Listener *lr = slap_listeners[l];
2433 if ( lr->sl_sd == AC_SOCKET_INVALID ) continue;
2434 if ( DAEMON_ID( lr->sl_sd ) != tid ) continue;
2436 if ( lr->sl_mute || lr->sl_busy )
2438 SLAP_SOCK_CLR_READ( tid, lr->sl_sd );
2440 SLAP_SOCK_SET_READ( tid, lr->sl_sd );
2444 SLAP_EVENT_INIT(tid);
2446 nfds = SLAP_EVENT_MAX(tid);
2448 if (( chk_writetime || global_idletimeout ) && slap_daemon[tid].sd_nactives ) at = 1;
2450 ldap_pvt_thread_mutex_unlock( &slap_daemon[tid].sd_mutex );
2453 #if defined(HAVE_YIELDING_SELECT) || defined(NO_THREADS)
2454 && ( tv.tv_sec || tv.tv_usec )
2455 #endif /* HAVE_YIELDING_SELECT || NO_THREADS */
2463 /* Only thread 0 handles runqueue */
2465 ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
2466 rtask = ldap_pvt_runqueue_next_sched( &slapd_rq, &cat );
2467 while ( rtask && cat.tv_sec && cat.tv_sec <= now ) {
2468 if ( ldap_pvt_runqueue_isrunning( &slapd_rq, rtask )) {
2469 ldap_pvt_runqueue_resched( &slapd_rq, rtask, 0 );
2471 ldap_pvt_runqueue_runtask( &slapd_rq, rtask );
2472 ldap_pvt_runqueue_resched( &slapd_rq, rtask, 0 );
2473 ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
2474 ldap_pvt_thread_pool_submit( &connection_pool,
2475 rtask->routine, (void *) rtask );
2476 ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
2478 rtask = ldap_pvt_runqueue_next_sched( &slapd_rq, &cat );
2480 ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
2482 if ( rtask && cat.tv_sec ) {
2483 /* NOTE: diff __should__ always be >= 0,
2484 * AFAI understand; however (ITS#4872),
2485 * time_t might be unsigned in some systems,
2486 * while difftime() returns a double */
2487 double diff = difftime( cat.tv_sec, now );
2491 if ( tvp == NULL || diff < tv.tv_sec ) {
2499 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
2500 Listener *lr = slap_listeners[l];
2502 if ( lr->sl_sd == AC_SOCKET_INVALID ) {
2506 if ( lr->sl_mute ) {
2507 Debug( LDAP_DEBUG_CONNS,
2508 "daemon: " SLAP_EVENT_FNAME ": "
2509 "listen=%d muted\n",
2514 if ( lr->sl_busy ) {
2515 Debug( LDAP_DEBUG_CONNS,
2516 "daemon: " SLAP_EVENT_FNAME ": "
2522 Debug( LDAP_DEBUG_CONNS,
2523 "daemon: " SLAP_EVENT_FNAME ": "
2524 "listen=%d active_threads=%d tvp=%s\n",
2525 lr->sl_sd, at, tvp == NULL ? "NULL" : "zero" );
2528 SLAP_EVENT_WAIT( tid, tvp, &ns );
2530 case -1: { /* failure - try again */
2531 int err = sock_errno();
2533 if ( err != EINTR ) {
2536 /* Don't log unless we got it twice in a row */
2537 if ( !( ebadf & 1 ) ) {
2538 Debug( LDAP_DEBUG_ANY,
2544 sock_errstr( err ) );
2546 if ( ebadf >= SLAPD_EBADF_LIMIT ) {
2553 case 0: /* timeout - let threads run */
2555 #ifndef HAVE_YIELDING_SELECT
2556 Debug( LDAP_DEBUG_CONNS, "daemon: " SLAP_EVENT_FNAME
2557 "timeout - yielding\n",
2560 ldap_pvt_thread_yield();
2561 #endif /* ! HAVE_YIELDING_SELECT */
2564 default: /* something happened - deal with it */
2565 if ( slapd_shutdown ) continue;
2568 Debug( LDAP_DEBUG_CONNS,
2569 "daemon: activity on %d descriptor%s\n",
2570 ns, ns != 1 ? "s" : "", 0 );
2574 #if SLAP_EVENTS_ARE_INDEXED
2575 if ( SLAP_EVENT_IS_READ( wake_sds[tid][0] ) ) {
2577 SLAP_EVENT_CLR_READ( wake_sds[tid][0] );
2579 tcp_read( SLAP_FD2SOCK(wake_sds[tid][0]), c, sizeof(c) );
2580 Debug( LDAP_DEBUG_CONNS, "daemon: waked\n", 0, 0, 0 );
2584 /* The event slot equals the descriptor number - this is
2585 * true for Unix select and poll. We treat Windows select
2586 * like this too, even though it's a kludge.
2589 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
2592 if ( ns <= 0 ) break;
2593 if ( slap_listeners[l]->sl_sd == AC_SOCKET_INVALID ) continue;
2594 #ifdef LDAP_CONNECTIONLESS
2595 if ( slap_listeners[l]->sl_is_udp ) continue;
2596 #endif /* LDAP_CONNECTIONLESS */
2597 if ( !SLAP_EVENT_IS_READ( slap_listeners[l]->sl_sd ) ) continue;
2600 SLAP_EVENT_CLR_READ( slap_listeners[l]->sl_sd );
2601 SLAP_EVENT_CLR_WRITE( slap_listeners[l]->sl_sd );
2604 rc = slap_listener_activate( slap_listeners[l] );
2607 /* bypass the following tests if no descriptors left */
2609 #ifndef HAVE_YIELDING_SELECT
2610 ldap_pvt_thread_yield();
2611 #endif /* HAVE_YIELDING_SELECT */
2615 Debug( LDAP_DEBUG_CONNS, "daemon: activity on:", 0, 0, 0 );
2618 for ( i = 0; i < nfds; i++ ) {
2621 r = SLAP_EVENT_IS_READ( i );
2622 /* writefds was not initialized if nwriters was zero */
2623 w = nwriters ? SLAP_EVENT_IS_WRITE( i ) : 0;
2625 Debug( LDAP_DEBUG_CONNS, " %d%s%s", i,
2626 r ? "r" : "", w ? "w" : "" );
2636 if ( ns <= 0 ) break;
2638 Debug( LDAP_DEBUG_CONNS, "\n", 0, 0, 0 );
2640 /* loop through the writers */
2641 for ( i = 0; nwfds > 0; i++ ) {
2643 if ( ! SLAP_EVENT_IS_WRITE( i ) ) continue;
2646 SLAP_EVENT_CLR_WRITE( wd );
2649 Debug( LDAP_DEBUG_CONNS,
2650 "daemon: write active on %d\n",
2654 * NOTE: it is possible that the connection was closed
2655 * and that the stream is now inactive.
2656 * connection_write() must validate the stream is still
2659 * ITS#4338: if the stream is invalid, there is no need to
2660 * close it here. It has already been closed in connection.c.
2662 if ( connection_write( wd ) < 0 ) {
2663 if ( SLAP_EVENT_IS_READ( wd ) ) {
2664 SLAP_EVENT_CLR_READ( (unsigned) wd );
2670 for ( i = 0; nrfds > 0; i++ ) {
2672 if ( ! SLAP_EVENT_IS_READ( i ) ) continue;
2674 SLAP_EVENT_CLR_READ( rd );
2677 Debug ( LDAP_DEBUG_CONNS,
2678 "daemon: read activity on %d\n", rd, 0, 0 );
2680 * NOTE: it is possible that the connection was closed
2681 * and that the stream is now inactive.
2682 * connection_read() must valid the stream is still
2686 connection_read_activate( rd );
2688 #else /* !SLAP_EVENTS_ARE_INDEXED */
2690 /* The events are returned in an arbitrary list. This is true
2691 * for /dev/poll, epoll and kqueue. In order to prioritize things
2692 * so that we can handle wake_sds first, listeners second, and then
2693 * all other connections last (as we do for select), we would need
2694 * to use multiple event handles and cascade them.
2696 * That seems like a bit of hassle. So the wake_sds check has been
2697 * skipped. For epoll and kqueue we can associate arbitrary data with
2698 * an event, so we could use pointers to the listener structure
2699 * instead of just the file descriptor. For /dev/poll we have to
2700 * search the listeners array for a matching descriptor.
2702 * We now handle wake events when we see them; they are not given
2706 Debug( LDAP_DEBUG_CONNS, "daemon: activity on:", 0, 0, 0 );
2708 for ( i = 0; i < ns; i++ ) {
2711 /* Don't log listener events */
2712 if ( SLAP_EVENT_IS_LISTENER( tid, i )
2713 #ifdef LDAP_CONNECTIONLESS
2714 && !( (SLAP_EVENT_LISTENER( tid, i ))->sl_is_udp )
2715 #endif /* LDAP_CONNECTIONLESS */
2721 fd = SLAP_EVENT_FD( tid, i );
2722 /* Don't log internal wake events */
2723 if ( fd == wake_sds[tid][0] ) continue;
2725 r = SLAP_EVENT_IS_READ( i );
2726 w = SLAP_EVENT_IS_WRITE( i );
2728 Debug( LDAP_DEBUG_CONNS, " %d%s%s", fd,
2729 r ? "r" : "", w ? "w" : "" );
2732 Debug( LDAP_DEBUG_CONNS, "\n", 0, 0, 0 );
2733 #endif /* LDAP_DEBUG */
2735 for ( i = 0; i < ns; i++ ) {
2736 int rc = 1, fd, w = 0, r = 0;
2738 if ( SLAP_EVENT_IS_LISTENER( tid, i ) ) {
2739 rc = slap_listener_activate( SLAP_EVENT_LISTENER( tid, i ) );
2742 /* If we found a regular listener, rc is now zero, and we
2743 * can skip the data portion. But if it was a UDP listener
2744 * then rc is still 1, and we want to handle the data.
2747 fd = SLAP_EVENT_FD( tid, i );
2749 /* Handle wake events */
2750 if ( fd == wake_sds[tid][0] ) {
2753 tcp_read( SLAP_FD2SOCK(wake_sds[tid][0]), c, sizeof(c) );
2757 if ( SLAP_EVENT_IS_WRITE( i ) ) {
2758 Debug( LDAP_DEBUG_CONNS,
2759 "daemon: write active on %d\n",
2762 SLAP_EVENT_CLR_WRITE( i );
2766 * NOTE: it is possible that the connection was closed
2767 * and that the stream is now inactive.
2768 * connection_write() must valid the stream is still
2771 if ( connection_write( fd ) < 0 ) {
2775 /* If event is a read */
2776 if ( SLAP_EVENT_IS_READ( i ))
2779 Debug( LDAP_DEBUG_CONNS,
2780 "daemon: read active on %d\n",
2784 SLAP_EVENT_CLR_READ( i );
2787 /* Don't keep reporting the hangup
2789 if ( SLAP_SOCK_IS_ACTIVE( tid, fd )) {
2790 SLAP_EPOLL_SOCK_SET( tid, fd, EPOLLET );
2794 connection_read_activate( fd );
2798 #endif /* SLAP_EVENTS_ARE_INDEXED */
2800 #ifndef HAVE_YIELDING_SELECT
2801 ldap_pvt_thread_yield();
2802 #endif /* ! HAVE_YIELDING_SELECT */
2805 /* Only thread 0 handles shutdown */
2809 if ( slapd_shutdown == 1 ) {
2810 Debug( LDAP_DEBUG_ANY,
2811 "daemon: shutdown requested and initiated.\n",
2814 } else if ( slapd_shutdown == 2 ) {
2815 #ifdef HAVE_NT_SERVICE_MANAGER
2816 Debug( LDAP_DEBUG_ANY,
2817 "daemon: shutdown initiated by Service Manager.\n",
2819 #else /* !HAVE_NT_SERVICE_MANAGER */
2820 Debug( LDAP_DEBUG_ANY,
2821 "daemon: abnormal condition, shutdown initiated.\n",
2823 #endif /* !HAVE_NT_SERVICE_MANAGER */
2825 Debug( LDAP_DEBUG_ANY,
2826 "daemon: no active streams, shutdown initiated.\n",
2830 close_listeners( 0 );
2832 if ( !slapd_gentle_shutdown ) {
2833 slapd_abrupt_shutdown = 1;
2834 connections_shutdown();
2837 if ( LogTest( LDAP_DEBUG_ANY )) {
2838 int t = ldap_pvt_thread_pool_backload( &connection_pool );
2839 Debug( LDAP_DEBUG_ANY,
2840 "slapd shutdown: waiting for %d operations/tasks to finish\n",
2843 ldap_pvt_thread_pool_destroy( &connection_pool, 1 );
2849 #ifdef LDAP_CONNECTIONLESS
2851 connectionless_init( void )
2855 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
2856 Listener *lr = slap_listeners[l];
2859 if ( !lr->sl_is_udp ) {
2863 c = connection_init( lr->sl_sd, lr, "", "",
2864 CONN_IS_UDP, (slap_ssf_t) 0, NULL
2865 LDAP_PF_LOCAL_SENDMSG_ARG(NULL));
2868 Debug( LDAP_DEBUG_TRACE,
2869 "connectionless_init: failed on %s (%d)\n",
2870 lr->sl_url.bv_val, lr->sl_sd, 0 );
2878 #endif /* LDAP_CONNECTIONLESS */
2881 slapd_daemon( void )
2884 ldap_pvt_thread_t *listener_tid;
2886 #ifdef LDAP_CONNECTIONLESS
2887 connectionless_init();
2888 #endif /* LDAP_CONNECTIONLESS */
2890 listener_tid = ch_malloc(slapd_daemon_threads * sizeof(ldap_pvt_thread_t));
2892 /* daemon_init only inits element 0 */
2893 for ( i=1; i<slapd_daemon_threads; i++ )
2895 ldap_pvt_thread_mutex_init( &slap_daemon[i].sd_mutex );
2897 if( (rc = lutil_pair( wake_sds[i] )) < 0 ) {
2898 Debug( LDAP_DEBUG_ANY,
2899 "daemon: lutil_pair() failed rc=%d\n", rc, 0, 0 );
2902 ber_pvt_socket_set_nonblock( wake_sds[i][1], 1 );
2907 for ( i=0; i<slapd_daemon_threads; i++ )
2909 /* listener as a separate THREAD */
2910 rc = ldap_pvt_thread_create( &listener_tid[i],
2911 0, slapd_daemon_task, (void *)i );
2914 Debug( LDAP_DEBUG_ANY,
2915 "listener ldap_pvt_thread_create failed (%d)\n", rc, 0, 0 );
2920 /* wait for the listener threads to complete */
2921 for ( i=0; i<slapd_daemon_threads; i++ )
2922 ldap_pvt_thread_join( listener_tid[i], (void *)NULL );
2924 destroy_listeners();
2925 ch_free( listener_tid );
2933 #if defined( HAVE_WINSOCK2 )
2934 WORD wVersionRequested;
2938 wVersionRequested = MAKEWORD( 2, 0 );
2940 err = WSAStartup( wVersionRequested, &wsaData );
2942 /* Tell the user that we couldn't find a usable */
2947 /* Confirm that the WinSock DLL supports 2.0.*/
2948 /* Note that if the DLL supports versions greater */
2949 /* than 2.0 in addition to 2.0, it will still return */
2950 /* 2.0 in wVersion since that is the version we */
2953 if ( LOBYTE( wsaData.wVersion ) != 2 ||
2954 HIBYTE( wsaData.wVersion ) != 0 )
2956 /* Tell the user that we couldn't find a usable */
2962 /* The WinSock DLL is acceptable. Proceed. */
2963 #elif defined( HAVE_WINSOCK )
2965 if ( WSAStartup( 0x0101, &wsaData ) != 0 ) return -1;
2966 #endif /* ! HAVE_WINSOCK2 && ! HAVE_WINSOCK */
2974 #if defined( HAVE_WINSOCK2 ) || defined( HAVE_WINSOCK )
2976 #endif /* HAVE_WINSOCK2 || HAVE_WINSOCK */
2982 slap_sig_shutdown( int sig )
2984 int save_errno = errno;
2988 Debug(LDAP_DEBUG_TRACE, "slap_sig_shutdown: signal %d\n", sig, 0, 0);
2992 * If the NT Service Manager is controlling the server, we don't
2993 * want SIGBREAK to kill the server. For some strange reason,
2994 * SIGBREAK is generated when a user logs out.
2997 #if defined(HAVE_NT_SERVICE_MANAGER) && defined(SIGBREAK)
2998 if (is_NT_Service && sig == SIGBREAK) {
3001 #endif /* HAVE_NT_SERVICE_MANAGER && SIGBREAK */
3003 if (sig == SIGHUP && global_gentlehup && slapd_gentle_shutdown == 0) {
3004 slapd_gentle_shutdown = 1;
3011 for (i=0; i<slapd_daemon_threads; i++) {
3015 /* reinstall self */
3016 (void) SIGNAL_REINSTALL( sig, slap_sig_shutdown );
3022 slap_sig_wake( int sig )
3024 int save_errno = errno;
3028 /* reinstall self */
3029 (void) SIGNAL_REINSTALL( sig, slap_sig_wake );
3036 slapd_add_internal( ber_socket_t s, int isactive )
3038 slapd_add( s, isactive, NULL, -1 );
3042 slapd_get_listeners( void )
3044 /* Could return array with no listeners if !listening, but current
3045 * callers mostly look at the URLs. E.g. syncrepl uses this to
3046 * identify the server, which means it wants the startup arguments.
3048 return slap_listeners;
3051 /* Reject all incoming requests */
3053 slap_suspend_listeners( void )
3056 for (i=0; slap_listeners[i]; i++) {
3057 slap_listeners[i]->sl_mute = 1;
3058 listen( slap_listeners[i]->sl_sd, 0 );
3062 /* Resume after a suspend */
3064 slap_resume_listeners( void )
3067 for (i=0; slap_listeners[i]; i++) {
3068 slap_listeners[i]->sl_mute = 0;
3069 listen( slap_listeners[i]->sl_sd, SLAPD_LISTEN_BACKLOG );
3074 slap_wake_listener()