2 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
4 * Copyright 1998-2009 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 Listener **slap_listeners = NULL;
78 #ifndef SLAPD_LISTEN_BACKLOG
79 #define SLAPD_LISTEN_BACKLOG 1024
80 #endif /* ! SLAPD_LISTEN_BACKLOG */
82 static ber_socket_t wake_sds[2]
84 = { INVALID_SOCKET, INVALID_SOCKET }
85 #endif /* HAVE_WINSOCK */
89 static time_t chk_writetime;
91 static volatile int waking;
93 #define WAKE_LISTENER(w) do { \
94 if ((w) && ++waking < 5) { \
95 tcp_write( SLAP_FD2SOCK(wake_sds[1]), "0", 1 ); \
98 #else /* ! NO_THREADS */
99 #define WAKE_LISTENER(w) do { \
101 tcp_write( SLAP_FD2SOCK(wake_sds[1]), "0", 1 ); \
104 #endif /* ! NO_THREADS */
106 volatile sig_atomic_t slapd_shutdown = 0;
107 volatile sig_atomic_t slapd_gentle_shutdown = 0;
108 volatile sig_atomic_t slapd_abrupt_shutdown = 0;
111 ldap_pvt_thread_mutex_t slapd_ws_mutex;
112 SOCKET *slapd_ws_sockets;
116 #define SD_LISTENER 8
119 static struct slap_daemon {
120 ldap_pvt_thread_mutex_t sd_mutex;
122 ldap_pvt_thread_mutex_t sd_tcpd_mutex;
123 #endif /* TCP Wrappers */
125 ber_socket_t sd_nactives;
129 #if defined(HAVE_EPOLL)
130 struct epoll_event *sd_epolls;
133 #elif defined(SLAP_X_DEVPOLL) && defined(HAVE_DEVPOLL)
135 struct pollfd *sd_pollfd;
139 #else /* ! epoll && ! /dev/poll */
143 #else /* ! HAVE_WINSOCK */
147 #endif /* ! HAVE_WINSOCK */
148 #endif /* ! epoll && ! /dev/poll */
152 * NOTE: naming convention for macros:
154 * - SLAP_SOCK_* and SLAP_EVENT_* for public interface that deals
155 * with file descriptors and events respectively
157 * - SLAP_<type>_* for private interface; type by now is one of
158 * EPOLL, DEVPOLL, SELECT
160 * private interface should not be used in the code.
162 #if defined(HAVE_EPOLL)
163 /***************************************
164 * Use epoll infrastructure - epoll(4) *
165 ***************************************/
166 # define SLAP_EVENT_FNAME "epoll"
167 # define SLAP_EVENTS_ARE_INDEXED 0
168 # define SLAP_EPOLL_SOCK_IX(s) (slap_daemon.sd_index[(s)])
169 # define SLAP_EPOLL_SOCK_EP(s) (slap_daemon.sd_epolls[SLAP_EPOLL_SOCK_IX(s)])
170 # define SLAP_EPOLL_SOCK_EV(s) (SLAP_EPOLL_SOCK_EP(s).events)
171 # define SLAP_SOCK_IS_ACTIVE(s) (SLAP_EPOLL_SOCK_IX(s) != -1)
172 # define SLAP_SOCK_NOT_ACTIVE(s) (SLAP_EPOLL_SOCK_IX(s) == -1)
173 # define SLAP_EPOLL_SOCK_IS_SET(s, mode) (SLAP_EPOLL_SOCK_EV(s) & (mode))
175 # define SLAP_SOCK_IS_READ(s) SLAP_EPOLL_SOCK_IS_SET((s), EPOLLIN)
176 # define SLAP_SOCK_IS_WRITE(s) SLAP_EPOLL_SOCK_IS_SET((s), EPOLLOUT)
178 # define SLAP_EPOLL_SOCK_SET(s, mode) do { \
179 if ( (SLAP_EPOLL_SOCK_EV(s) & (mode)) != (mode) ) { \
180 SLAP_EPOLL_SOCK_EV(s) |= (mode); \
181 epoll_ctl( slap_daemon.sd_epfd, EPOLL_CTL_MOD, (s), \
182 &SLAP_EPOLL_SOCK_EP(s) ); \
186 # define SLAP_EPOLL_SOCK_CLR(s, mode) do { \
187 if ( (SLAP_EPOLL_SOCK_EV(s) & (mode)) ) { \
188 SLAP_EPOLL_SOCK_EV(s) &= ~(mode); \
189 epoll_ctl( slap_daemon.sd_epfd, EPOLL_CTL_MOD, s, \
190 &SLAP_EPOLL_SOCK_EP(s) ); \
194 # define SLAP_SOCK_SET_READ(s) SLAP_EPOLL_SOCK_SET(s, EPOLLIN)
195 # define SLAP_SOCK_SET_WRITE(s) SLAP_EPOLL_SOCK_SET(s, EPOLLOUT)
197 # define SLAP_SOCK_CLR_READ(s) SLAP_EPOLL_SOCK_CLR((s), EPOLLIN)
198 # define SLAP_SOCK_CLR_WRITE(s) SLAP_EPOLL_SOCK_CLR((s), EPOLLOUT)
200 # define SLAP_SOCK_SET_SUSPEND(s) \
201 ( slap_daemon.sd_suspend[SLAP_EPOLL_SOCK_IX(s)] = 1 )
202 # define SLAP_SOCK_CLR_SUSPEND(s) \
203 ( slap_daemon.sd_suspend[SLAP_EPOLL_SOCK_IX(s)] = 0 )
204 # define SLAP_SOCK_IS_SUSPEND(s) \
205 ( slap_daemon.sd_suspend[SLAP_EPOLL_SOCK_IX(s)] == 1 )
207 # define SLAP_EPOLL_EVENT_CLR(i, mode) (revents[(i)].events &= ~(mode))
209 # define SLAP_EVENT_MAX slap_daemon.sd_nfds
211 /* If a Listener address is provided, store that as the epoll data.
212 * Otherwise, store the address of this socket's slot in the
213 * index array. If we can't do this add, the system is out of
214 * resources and we need to shutdown.
216 # define SLAP_SOCK_ADD(s, l) do { \
218 SLAP_EPOLL_SOCK_IX((s)) = slap_daemon.sd_nfds; \
219 SLAP_EPOLL_SOCK_EP((s)).data.ptr = (l) ? (l) : (void *)(&SLAP_EPOLL_SOCK_IX(s)); \
220 SLAP_EPOLL_SOCK_EV((s)) = EPOLLIN; \
221 rc = epoll_ctl(slap_daemon.sd_epfd, EPOLL_CTL_ADD, \
222 (s), &SLAP_EPOLL_SOCK_EP((s))); \
224 slap_daemon.sd_nfds++; \
226 Debug( LDAP_DEBUG_ANY, \
227 "daemon: epoll_ctl(ADD,fd=%d) failed, errno=%d, shutting down\n", \
229 slapd_shutdown = 2; \
233 # define SLAP_EPOLL_EV_LISTENER(ptr) \
234 (((int *)(ptr) >= slap_daemon.sd_index && \
235 (int *)(ptr) <= &slap_daemon.sd_index[dtblsize]) ? 0 : 1 )
237 # define SLAP_EPOLL_EV_PTRFD(ptr) (SLAP_EPOLL_EV_LISTENER(ptr) ? \
238 ((Listener *)ptr)->sl_sd : \
239 (ber_socket_t) ((int *)(ptr) - slap_daemon.sd_index))
241 # define SLAP_SOCK_DEL(s) do { \
242 int fd, rc, index = SLAP_EPOLL_SOCK_IX((s)); \
243 if ( index < 0 ) break; \
244 rc = epoll_ctl(slap_daemon.sd_epfd, EPOLL_CTL_DEL, \
245 (s), &SLAP_EPOLL_SOCK_EP((s))); \
246 slap_daemon.sd_epolls[index] = \
247 slap_daemon.sd_epolls[slap_daemon.sd_nfds-1]; \
248 fd = SLAP_EPOLL_EV_PTRFD(slap_daemon.sd_epolls[index].data.ptr); \
249 slap_daemon.sd_index[fd] = index; \
250 slap_daemon.sd_index[(s)] = -1; \
251 slap_daemon.sd_nfds--; \
254 # define SLAP_EVENT_CLR_READ(i) SLAP_EPOLL_EVENT_CLR((i), EPOLLIN)
255 # define SLAP_EVENT_CLR_WRITE(i) SLAP_EPOLL_EVENT_CLR((i), EPOLLOUT)
257 # define SLAP_EPOLL_EVENT_CHK(i, mode) (revents[(i)].events & mode)
259 # define SLAP_EVENT_IS_READ(i) SLAP_EPOLL_EVENT_CHK((i), EPOLLIN)
260 # define SLAP_EVENT_IS_WRITE(i) SLAP_EPOLL_EVENT_CHK((i), EPOLLOUT)
261 # define SLAP_EVENT_IS_LISTENER(i) SLAP_EPOLL_EV_LISTENER(revents[(i)].data.ptr)
262 # define SLAP_EVENT_LISTENER(i) ((Listener *)(revents[(i)].data.ptr))
264 # define SLAP_EVENT_FD(i) SLAP_EPOLL_EV_PTRFD(revents[(i)].data.ptr)
266 # define SLAP_SOCK_INIT do { \
267 slap_daemon.sd_epolls = ch_calloc(1, \
268 ( sizeof(struct epoll_event) * 2 \
269 + sizeof(int) ) * dtblsize * 2); \
270 slap_daemon.sd_index = (int *)&slap_daemon.sd_epolls[ 2 * dtblsize ]; \
271 slap_daemon.sd_epfd = epoll_create( dtblsize ); \
272 for ( i = 0; i < dtblsize; i++ ) slap_daemon.sd_index[i] = -1; \
275 # define SLAP_SOCK_DESTROY do { \
276 if ( slap_daemon.sd_epolls != NULL ) { \
277 ch_free( slap_daemon.sd_epolls ); \
278 slap_daemon.sd_epolls = NULL; \
279 slap_daemon.sd_index = NULL; \
280 close( slap_daemon.sd_epfd ); \
284 # define SLAP_EVENT_DECL struct epoll_event *revents
286 # define SLAP_EVENT_INIT do { \
287 revents = slap_daemon.sd_epolls + dtblsize; \
290 # define SLAP_EVENT_WAIT(tvp, nsp) do { \
291 *(nsp) = epoll_wait( slap_daemon.sd_epfd, revents, \
292 dtblsize, (tvp) ? (tvp)->tv_sec * 1000 : -1 ); \
295 #elif defined(SLAP_X_DEVPOLL) && defined(HAVE_DEVPOLL)
297 /*************************************************************
298 * Use Solaris' (>= 2.7) /dev/poll infrastructure - poll(7d) *
299 *************************************************************/
300 # define SLAP_EVENT_FNAME "/dev/poll"
301 # define SLAP_EVENTS_ARE_INDEXED 0
303 * - sd_index is used much like with epoll()
304 * - sd_l is maintained as an array containing the address
305 * of the listener; the index is the fd itself
306 * - sd_pollfd is used to keep track of what data has been
307 * registered in /dev/poll
309 # define SLAP_DEVPOLL_SOCK_IX(s) (slap_daemon.sd_index[(s)])
310 # define SLAP_DEVPOLL_SOCK_LX(s) (slap_daemon.sd_l[(s)])
311 # define SLAP_DEVPOLL_SOCK_EP(s) (slap_daemon.sd_pollfd[SLAP_DEVPOLL_SOCK_IX((s))])
312 # define SLAP_DEVPOLL_SOCK_FD(s) (SLAP_DEVPOLL_SOCK_EP((s)).fd)
313 # define SLAP_DEVPOLL_SOCK_EV(s) (SLAP_DEVPOLL_SOCK_EP((s)).events)
314 # define SLAP_SOCK_IS_ACTIVE(s) (SLAP_DEVPOLL_SOCK_IX((s)) != -1)
315 # define SLAP_SOCK_NOT_ACTIVE(s) (SLAP_DEVPOLL_SOCK_IX((s)) == -1)
316 # define SLAP_SOCK_IS_SET(s, mode) (SLAP_DEVPOLL_SOCK_EV((s)) & (mode))
318 # define SLAP_SOCK_IS_READ(s) SLAP_SOCK_IS_SET((s), POLLIN)
319 # define SLAP_SOCK_IS_WRITE(s) SLAP_SOCK_IS_SET((s), POLLOUT)
321 /* as far as I understand, any time we need to communicate with the kernel
322 * about the number and/or properties of a file descriptor we need it to
323 * wait for, we have to rewrite the whole set */
324 # define SLAP_DEVPOLL_WRITE_POLLFD(s, pfd, n, what, shdn) do { \
326 size_t size = (n) * sizeof( struct pollfd ); \
327 /* FIXME: use pwrite? */ \
328 rc = write( slap_daemon.sd_dpfd, (pfd), size ); \
329 if ( rc != size ) { \
330 Debug( LDAP_DEBUG_ANY, "daemon: " SLAP_EVENT_FNAME ": " \
331 "%s fd=%d failed errno=%d\n", \
332 (what), (s), errno ); \
334 slapd_shutdown = 2; \
339 # define SLAP_DEVPOLL_SOCK_SET(s, mode) do { \
340 Debug( LDAP_DEBUG_CONNS, "SLAP_SOCK_SET_%s(%d)=%d\n", \
341 (mode) == POLLIN ? "READ" : "WRITE", (s), \
342 ( (SLAP_DEVPOLL_SOCK_EV((s)) & (mode)) != (mode) ) ); \
343 if ( (SLAP_DEVPOLL_SOCK_EV((s)) & (mode)) != (mode) ) { \
345 SLAP_DEVPOLL_SOCK_EV((s)) |= (mode); \
346 pfd.fd = SLAP_DEVPOLL_SOCK_FD((s)); \
347 pfd.events = /* (mode) */ SLAP_DEVPOLL_SOCK_EV((s)); \
348 SLAP_DEVPOLL_WRITE_POLLFD((s), &pfd, 1, "SET", 0); \
352 # define SLAP_DEVPOLL_SOCK_CLR(s, mode) do { \
353 Debug( LDAP_DEBUG_CONNS, "SLAP_SOCK_CLR_%s(%d)=%d\n", \
354 (mode) == POLLIN ? "READ" : "WRITE", (s), \
355 ( (SLAP_DEVPOLL_SOCK_EV((s)) & (mode)) == (mode) ) ); \
356 if ((SLAP_DEVPOLL_SOCK_EV((s)) & (mode)) == (mode) ) { \
357 struct pollfd pfd[2]; \
358 SLAP_DEVPOLL_SOCK_EV((s)) &= ~(mode); \
359 pfd[0].fd = SLAP_DEVPOLL_SOCK_FD((s)); \
360 pfd[0].events = POLLREMOVE; \
361 pfd[1] = SLAP_DEVPOLL_SOCK_EP((s)); \
362 SLAP_DEVPOLL_WRITE_POLLFD((s), &pfd[0], 2, "CLR", 0); \
366 # define SLAP_SOCK_SET_READ(s) SLAP_DEVPOLL_SOCK_SET(s, POLLIN)
367 # define SLAP_SOCK_SET_WRITE(s) SLAP_DEVPOLL_SOCK_SET(s, POLLOUT)
369 # define SLAP_SOCK_CLR_READ(s) SLAP_DEVPOLL_SOCK_CLR((s), POLLIN)
370 # define SLAP_SOCK_CLR_WRITE(s) SLAP_DEVPOLL_SOCK_CLR((s), POLLOUT)
372 # define SLAP_SOCK_SET_SUSPEND(s) \
373 ( slap_daemon.sd_suspend[SLAP_DEVPOLL_SOCK_IX((s))] = 1 )
374 # define SLAP_SOCK_CLR_SUSPEND(s) \
375 ( slap_daemon.sd_suspend[SLAP_DEVPOLL_SOCK_IX((s))] = 0 )
376 # define SLAP_SOCK_IS_SUSPEND(s) \
377 ( slap_daemon.sd_suspend[SLAP_DEVPOLL_SOCK_IX((s))] == 1 )
379 # define SLAP_DEVPOLL_EVENT_CLR(i, mode) (revents[(i)].events &= ~(mode))
381 # define SLAP_EVENT_MAX slap_daemon.sd_nfds
383 /* If a Listener address is provided, store that in the sd_l array.
384 * If we can't do this add, the system is out of resources and we
387 # define SLAP_SOCK_ADD(s, l) do { \
388 Debug( LDAP_DEBUG_CONNS, "SLAP_SOCK_ADD(%d, %p)\n", (s), (l), 0 ); \
389 SLAP_DEVPOLL_SOCK_IX((s)) = slap_daemon.sd_nfds; \
390 SLAP_DEVPOLL_SOCK_LX((s)) = (l); \
391 SLAP_DEVPOLL_SOCK_FD((s)) = (s); \
392 SLAP_DEVPOLL_SOCK_EV((s)) = POLLIN; \
393 SLAP_DEVPOLL_WRITE_POLLFD((s), &SLAP_DEVPOLL_SOCK_EP((s)), 1, "ADD", 1); \
394 slap_daemon.sd_nfds++; \
397 # define SLAP_DEVPOLL_EV_LISTENER(ptr) ((ptr) != NULL)
399 # define SLAP_SOCK_DEL(s) do { \
400 int fd, index = SLAP_DEVPOLL_SOCK_IX((s)); \
401 Debug( LDAP_DEBUG_CONNS, "SLAP_SOCK_DEL(%d)\n", (s), 0, 0 ); \
402 if ( index < 0 ) break; \
403 if ( index < slap_daemon.sd_nfds - 1 ) { \
404 struct pollfd pfd = slap_daemon.sd_pollfd[index]; \
405 fd = slap_daemon.sd_pollfd[slap_daemon.sd_nfds - 1].fd; \
406 slap_daemon.sd_pollfd[index] = slap_daemon.sd_pollfd[slap_daemon.sd_nfds - 1]; \
407 slap_daemon.sd_pollfd[slap_daemon.sd_nfds - 1] = pfd; \
408 slap_daemon.sd_index[fd] = index; \
410 slap_daemon.sd_index[(s)] = -1; \
411 slap_daemon.sd_pollfd[slap_daemon.sd_nfds - 1].events = POLLREMOVE; \
412 SLAP_DEVPOLL_WRITE_POLLFD((s), &slap_daemon.sd_pollfd[slap_daemon.sd_nfds - 1], 1, "DEL", 0); \
413 slap_daemon.sd_pollfd[slap_daemon.sd_nfds - 1].events = 0; \
414 slap_daemon.sd_nfds--; \
417 # define SLAP_EVENT_CLR_READ(i) SLAP_DEVPOLL_EVENT_CLR((i), POLLIN)
418 # define SLAP_EVENT_CLR_WRITE(i) SLAP_DEVPOLL_EVENT_CLR((i), POLLOUT)
420 # define SLAP_DEVPOLL_EVENT_CHK(i, mode) (revents[(i)].events & (mode))
422 # define SLAP_EVENT_FD(i) (revents[(i)].fd)
424 # define SLAP_EVENT_IS_READ(i) SLAP_DEVPOLL_EVENT_CHK((i), POLLIN)
425 # define SLAP_EVENT_IS_WRITE(i) SLAP_DEVPOLL_EVENT_CHK((i), POLLOUT)
426 # define SLAP_EVENT_IS_LISTENER(i) SLAP_DEVPOLL_EV_LISTENER(SLAP_DEVPOLL_SOCK_LX(SLAP_EVENT_FD((i))))
427 # define SLAP_EVENT_LISTENER(i) SLAP_DEVPOLL_SOCK_LX(SLAP_EVENT_FD((i)))
429 # define SLAP_SOCK_INIT do { \
430 slap_daemon.sd_pollfd = ch_calloc( 1, \
431 ( sizeof(struct pollfd) * 2 \
433 + sizeof( Listener * ) ) * dtblsize ); \
434 slap_daemon.sd_index = (int *)&slap_daemon.sd_pollfd[ 2 * dtblsize ]; \
435 slap_daemon.sd_l = (Listener **)&slap_daemon.sd_index[ dtblsize ]; \
436 slap_daemon.sd_dpfd = open( SLAP_EVENT_FNAME, O_RDWR ); \
437 if ( slap_daemon.sd_dpfd == -1 ) { \
438 Debug( LDAP_DEBUG_ANY, "daemon: " SLAP_EVENT_FNAME ": " \
439 "open(\"" SLAP_EVENT_FNAME "\") failed errno=%d\n", \
444 for ( i = 0; i < dtblsize; i++ ) { \
445 slap_daemon.sd_pollfd[i].fd = -1; \
446 slap_daemon.sd_index[i] = -1; \
450 # define SLAP_SOCK_DESTROY do { \
451 if ( slap_daemon.sd_pollfd != NULL ) { \
452 ch_free( slap_daemon.sd_pollfd ); \
453 slap_daemon.sd_pollfd = NULL; \
454 slap_daemon.sd_index = NULL; \
455 slap_daemon.sd_l = NULL; \
456 close( slap_daemon.sd_dpfd ); \
460 # define SLAP_EVENT_DECL struct pollfd *revents
462 # define SLAP_EVENT_INIT do { \
463 revents = &slap_daemon.sd_pollfd[ dtblsize ]; \
466 # define SLAP_EVENT_WAIT(tvp, nsp) do { \
467 struct dvpoll sd_dvpoll; \
468 sd_dvpoll.dp_timeout = (tvp) ? (tvp)->tv_sec * 1000 : -1; \
469 sd_dvpoll.dp_nfds = dtblsize; \
470 sd_dvpoll.dp_fds = revents; \
471 *(nsp) = ioctl( slap_daemon.sd_dpfd, DP_POLL, &sd_dvpoll ); \
474 #else /* ! epoll && ! /dev/poll */
476 # define SLAP_EVENT_FNAME "WSselect"
477 /* Winsock provides a "select" function but its fd_sets are
478 * actually arrays of sockets. Since these sockets are handles
479 * and not a contiguous range of small integers, we manage our
480 * own "fd" table of socket handles and use their indices as
483 * All of our listener/connection structures use fds; the actual
484 * I/O functions use sockets. The SLAP_FD2SOCK macro in proto-slap.h
485 * handles the mapping.
487 * Despite the mapping overhead, this is about 45% more efficient
488 * than just using Winsock's select and FD_ISSET directly.
490 * Unfortunately Winsock's select implementation doesn't scale well
491 * as the number of connections increases. This probably needs to be
492 * rewritten to use the Winsock overlapped/asynchronous I/O functions.
494 # define SLAP_EVENTS_ARE_INDEXED 1
495 # define SLAP_EVENT_DECL fd_set readfds, writefds
496 # define SLAP_EVENT_INIT do { \
498 FD_ZERO( &readfds ); \
499 FD_ZERO( &writefds ); \
500 memset( slap_daemon.sd_rflags, 0, slap_daemon.sd_nfds ); \
501 for ( i=0; i<slap_daemon.sd_nfds; i++ ) { \
502 if ( slap_daemon.sd_flags[i] & SD_READ ) \
503 FD_SET( slapd_ws_sockets[i], &readfds );\
504 if ( slap_daemon.sd_flags[i] & SD_WRITE ) \
505 FD_SET( slapd_ws_sockets[i], &writefds ); \
508 # define SLAP_EVENT_MAX slap_daemon.sd_nfds
510 # define SLAP_EVENT_WAIT(tvp, nsp) do { \
512 *(nsp) = select( SLAP_EVENT_MAX, &readfds, \
513 nwriters > 0 ? &writefds : NULL, NULL, (tvp) ); \
514 for ( i=0; i<readfds.fd_count; i++) { \
515 int fd = slapd_sock2fd(readfds.fd_array[i]); \
517 slap_daemon.sd_rflags[fd] = SD_READ; \
518 if ( fd >= *(nsp)) *(nsp) = fd+1; \
521 for ( i=0; i<writefds.fd_count; i++) { \
522 int fd = slapd_sock2fd(writefds.fd_array[i]); \
524 slap_daemon.sd_rflags[fd] = SD_WRITE; \
525 if ( fd >= *(nsp)) *(nsp) = fd+1; \
530 # define SLAP_EVENT_IS_READ(fd) (slap_daemon.sd_rflags[fd] & SD_READ)
531 # define SLAP_EVENT_IS_WRITE(fd) (slap_daemon.sd_rflags[fd] & SD_WRITE)
533 # define SLAP_EVENT_CLR_READ(fd) slap_daemon.sd_rflags[fd] &= ~SD_READ;
534 # define SLAP_EVENT_CLR_WRITE(fd) slap_daemon.sd_rflags[fd] &= ~SD_WRITE;
536 # define SLAP_SOCK_INIT do { \
537 ldap_pvt_thread_mutex_init( &slapd_ws_mutex ); \
538 slapd_ws_sockets = ch_malloc( dtblsize * ( sizeof(SOCKET) + 2)); \
539 slap_daemon.sd_flags = (char *)(slapd_ws_sockets + dtblsize); \
540 slap_daemon.sd_rflags = slap_daemon.sd_flags + dtblsize; \
541 memset( slapd_ws_sockets, -1, dtblsize * sizeof(SOCKET) ); \
542 memset( slap_daemon.sd_flags, 0, dtblsize ); \
543 slapd_ws_sockets[0] = wake_sds[0]; \
544 slapd_ws_sockets[1] = wake_sds[1]; \
547 slap_daemon.sd_nfds = 2; \
550 # define SLAP_SOCK_DESTROY do { \
551 ch_free( slapd_ws_sockets ); slapd_ws_sockets = NULL; \
552 slap_daemon.sd_flags = NULL; \
553 slap_daemon.sd_rflags = NULL; \
554 ldap_pvt_thread_mutex_destroy( &slapd_ws_mutex ); \
557 # define SLAP_SOCK_IS_ACTIVE(fd) ( slap_daemon.sd_flags[fd] & SD_ACTIVE )
558 # define SLAP_SOCK_IS_READ(fd) ( slap_daemon.sd_flags[fd] & SD_READ )
559 # define SLAP_SOCK_IS_WRITE(fd) ( slap_daemon.sd_flags[fd] & SD_WRITE )
560 # define SLAP_SOCK_NOT_ACTIVE(fd) (!slap_daemon.sd_flags[fd])
562 # define SLAP_SOCK_SET_READ(fd) ( slap_daemon.sd_flags[fd] |= SD_READ )
563 # define SLAP_SOCK_SET_WRITE(fd) ( slap_daemon.sd_flags[fd] |= SD_WRITE )
565 # define SLAP_SELECT_ADDTEST(s) do { \
566 if ((s) >= slap_daemon.sd_nfds) slap_daemon.sd_nfds = (s)+1; \
569 # define SLAP_SOCK_CLR_READ(fd) ( slap_daemon.sd_flags[fd] &= ~SD_READ )
570 # define SLAP_SOCK_CLR_WRITE(fd) ( slap_daemon.sd_flags[fd] &= ~SD_WRITE )
572 # define SLAP_SOCK_ADD(s, l) do { \
573 SLAP_SELECT_ADDTEST((s)); \
574 slap_daemon.sd_flags[s] = SD_ACTIVE|SD_READ; \
577 # define SLAP_SOCK_DEL(s) do { \
578 slap_daemon.sd_flags[s] = 0; \
579 slapd_sockdel( s ); \
582 # else /* !HAVE_WINSOCK */
584 /**************************************
585 * Use select system call - select(2) *
586 **************************************/
587 # define SLAP_EVENT_FNAME "select"
589 # define SLAP_EVENTS_ARE_INDEXED 1
590 # define SLAP_EVENT_DECL fd_set readfds, writefds
592 # define SLAP_EVENT_INIT do { \
593 AC_MEMCPY( &readfds, &slap_daemon.sd_readers, sizeof(fd_set) ); \
595 AC_MEMCPY( &writefds, &slap_daemon.sd_writers, sizeof(fd_set) ); \
597 FD_ZERO( &writefds ); \
602 # define SLAP_SELECT_CHK_SETSIZE do { \
603 if (dtblsize > FD_SETSIZE) dtblsize = FD_SETSIZE; \
605 # else /* ! FD_SETSIZE */
606 # define SLAP_SELECT_CHK_SETSIZE do { ; } while (0)
607 # endif /* ! FD_SETSIZE */
609 # define SLAP_SOCK_INIT do { \
610 SLAP_SELECT_CHK_SETSIZE; \
611 FD_ZERO(&slap_daemon.sd_actives); \
612 FD_ZERO(&slap_daemon.sd_readers); \
613 FD_ZERO(&slap_daemon.sd_writers); \
616 # define SLAP_SOCK_DESTROY
618 # define SLAP_SOCK_IS_ACTIVE(fd) FD_ISSET((fd), &slap_daemon.sd_actives)
619 # define SLAP_SOCK_IS_READ(fd) FD_ISSET((fd), &slap_daemon.sd_readers)
620 # define SLAP_SOCK_IS_WRITE(fd) FD_ISSET((fd), &slap_daemon.sd_writers)
622 # define SLAP_SOCK_NOT_ACTIVE(fd) (!SLAP_SOCK_IS_ACTIVE(fd) && \
623 !SLAP_SOCK_IS_READ(fd) && !SLAP_SOCK_IS_WRITE(fd))
625 # define SLAP_SOCK_SET_READ(fd) FD_SET((fd), &slap_daemon.sd_readers)
626 # define SLAP_SOCK_SET_WRITE(fd) FD_SET((fd), &slap_daemon.sd_writers)
628 # define SLAP_EVENT_MAX slap_daemon.sd_nfds
629 # define SLAP_SELECT_ADDTEST(s) do { \
630 if ((s) >= slap_daemon.sd_nfds) slap_daemon.sd_nfds = (s)+1; \
633 # define SLAP_SOCK_CLR_READ(fd) FD_CLR((fd), &slap_daemon.sd_readers)
634 # define SLAP_SOCK_CLR_WRITE(fd) FD_CLR((fd), &slap_daemon.sd_writers)
636 # define SLAP_SOCK_ADD(s, l) do { \
637 SLAP_SELECT_ADDTEST((s)); \
638 FD_SET((s), &slap_daemon.sd_actives); \
639 FD_SET((s), &slap_daemon.sd_readers); \
642 # define SLAP_SOCK_DEL(s) do { \
643 FD_CLR((s), &slap_daemon.sd_actives); \
644 FD_CLR((s), &slap_daemon.sd_readers); \
645 FD_CLR((s), &slap_daemon.sd_writers); \
648 # define SLAP_EVENT_IS_READ(fd) FD_ISSET((fd), &readfds)
649 # define SLAP_EVENT_IS_WRITE(fd) FD_ISSET((fd), &writefds)
651 # define SLAP_EVENT_CLR_READ(fd) FD_CLR((fd), &readfds)
652 # define SLAP_EVENT_CLR_WRITE(fd) FD_CLR((fd), &writefds)
654 # define SLAP_EVENT_WAIT(tvp, nsp) do { \
655 *(nsp) = select( SLAP_EVENT_MAX, &readfds, \
656 nwriters > 0 ? &writefds : NULL, NULL, (tvp) ); \
658 # endif /* !HAVE_WINSOCK */
659 #endif /* ! epoll && ! /dev/poll */
663 * SLP related functions
667 #define LDAP_SRVTYPE_PREFIX "service:ldap://"
668 #define LDAPS_SRVTYPE_PREFIX "service:ldaps://"
669 static char** slapd_srvurls = NULL;
670 static SLPHandle slapd_hslp = 0;
671 int slapd_register_slp = 0;
672 const char *slapd_slp_attrs = NULL;
674 static SLPError slapd_slp_cookie;
677 slapd_slp_init( const char* urls )
682 slapd_srvurls = ldap_str2charray( urls, " " );
684 if ( slapd_srvurls == NULL ) return;
686 /* find and expand INADDR_ANY URLs */
687 for ( i = 0; slapd_srvurls[i] != NULL; i++ ) {
688 if ( strcmp( slapd_srvurls[i], "ldap:///" ) == 0 ) {
689 slapd_srvurls[i] = (char *) ch_realloc( slapd_srvurls[i],
690 global_host_bv.bv_len +
691 sizeof( LDAP_SRVTYPE_PREFIX ) );
692 strcpy( lutil_strcopy(slapd_srvurls[i],
693 LDAP_SRVTYPE_PREFIX ), global_host_bv.bv_val );
694 } else if ( strcmp( slapd_srvurls[i], "ldaps:///" ) == 0 ) {
695 slapd_srvurls[i] = (char *) ch_realloc( slapd_srvurls[i],
696 global_host_bv.bv_len +
697 sizeof( LDAPS_SRVTYPE_PREFIX ) );
698 strcpy( lutil_strcopy(slapd_srvurls[i],
699 LDAPS_SRVTYPE_PREFIX ), global_host_bv.bv_val );
703 /* open the SLP handle */
704 err = SLPOpen( "en", 0, &slapd_hslp );
706 if ( err != SLP_OK ) {
707 Debug( LDAP_DEBUG_CONNS, "daemon: SLPOpen() failed with %ld\n",
713 slapd_slp_deinit( void )
715 if ( slapd_srvurls == NULL ) return;
717 ldap_charray_free( slapd_srvurls );
718 slapd_srvurls = NULL;
720 /* close the SLP handle */
721 SLPClose( slapd_hslp );
730 /* return the error code in the cookie */
731 *(SLPError*)cookie = errcode;
740 if ( slapd_srvurls == NULL ) return;
742 for ( i = 0; slapd_srvurls[i] != NULL; i++ ) {
743 if ( strncmp( slapd_srvurls[i], LDAP_SRVTYPE_PREFIX,
744 sizeof( LDAP_SRVTYPE_PREFIX ) - 1 ) == 0 ||
745 strncmp( slapd_srvurls[i], LDAPS_SRVTYPE_PREFIX,
746 sizeof( LDAPS_SRVTYPE_PREFIX ) - 1 ) == 0 )
748 err = SLPReg( slapd_hslp,
750 SLP_LIFETIME_MAXIMUM,
752 (slapd_slp_attrs) ? slapd_slp_attrs : "",
757 if ( err != SLP_OK || slapd_slp_cookie != SLP_OK ) {
758 Debug( LDAP_DEBUG_CONNS,
759 "daemon: SLPReg(%s) failed with %ld, cookie = %ld\n",
760 slapd_srvurls[i], (long)err, (long)slapd_slp_cookie );
767 slapd_slp_dereg( void )
772 if ( slapd_srvurls == NULL ) return;
774 for ( i = 0; slapd_srvurls[i] != NULL; i++ ) {
775 err = SLPDereg( slapd_hslp,
780 if ( err != SLP_OK || slapd_slp_cookie != SLP_OK ) {
781 Debug( LDAP_DEBUG_CONNS,
782 "daemon: SLPDereg(%s) failed with %ld, cookie = %ld\n",
783 slapd_srvurls[i], (long)err, (long)slapd_slp_cookie );
787 #endif /* HAVE_SLP */
790 /* Manage the descriptor to socket table */
792 slapd_socknew( ber_socket_t s )
795 ldap_pvt_thread_mutex_lock( &slapd_ws_mutex );
796 for ( i = 0; i < dtblsize && slapd_ws_sockets[i] != INVALID_SOCKET; i++ );
797 if ( i == dtblsize ) {
798 WSASetLastError( WSAEMFILE );
800 slapd_ws_sockets[i] = s;
802 ldap_pvt_thread_mutex_unlock( &slapd_ws_mutex );
807 slapd_sockdel( ber_socket_t s )
809 ldap_pvt_thread_mutex_lock( &slapd_ws_mutex );
810 slapd_ws_sockets[s] = INVALID_SOCKET;
811 ldap_pvt_thread_mutex_unlock( &slapd_ws_mutex );
815 slapd_sock2fd( ber_socket_t s )
818 for ( i=0; i<dtblsize && slapd_ws_sockets[i] != s; i++);
826 * Add a descriptor to daemon control
828 * If isactive, the descriptor is a live server session and is subject
829 * to idletimeout control. Otherwise, the descriptor is a passive
830 * listener or an outbound client session, and not subject to
831 * idletimeout. The underlying event handler may record the Listener
832 * argument to differentiate Listener's from real sessions.
835 slapd_add( ber_socket_t s, int isactive, Listener *sl )
837 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
839 assert( SLAP_SOCK_NOT_ACTIVE(s) );
841 if ( isactive ) slap_daemon.sd_nactives++;
843 SLAP_SOCK_ADD(s, sl);
845 Debug( LDAP_DEBUG_CONNS, "daemon: added %ldr%s listener=%p\n",
846 (long) s, isactive ? " (active)" : "", (void *)sl );
848 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
857 slapd_sd_lock( void )
859 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
866 slapd_sd_unlock( void )
868 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
872 * Remove the descriptor from daemon control
886 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
888 assert( SLAP_SOCK_IS_ACTIVE( s ));
890 if ( wasactive ) slap_daemon.sd_nactives--;
892 waswriter = SLAP_SOCK_IS_WRITE(s);
893 wasreader = SLAP_SOCK_IS_READ(s);
895 Debug( LDAP_DEBUG_CONNS, "daemon: removing %ld%s%s\n",
897 wasreader ? "r" : "",
898 waswriter ? "w" : "" );
900 if ( waswriter ) slap_daemon.sd_nwriters--;
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.
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;
924 /* Walked the entire list without enabling anything; emfile
925 * counter is stale. Reset it.
927 if ( slap_listeners[i] == NULL ) emfile = 0;
929 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
930 WAKE_LISTENER(wake || slapd_gentle_shutdown == 2);
934 slapd_clr_write( ber_socket_t s, int wake )
936 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
938 if ( SLAP_SOCK_IS_WRITE( s )) {
939 assert( SLAP_SOCK_IS_ACTIVE( s ));
941 SLAP_SOCK_CLR_WRITE( s );
942 slap_daemon.sd_nwriters--;
945 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
950 slapd_set_write( ber_socket_t s, int wake )
952 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
954 assert( SLAP_SOCK_IS_ACTIVE( s ));
956 if ( !SLAP_SOCK_IS_WRITE( s )) {
957 SLAP_SOCK_SET_WRITE( s );
958 slap_daemon.sd_nwriters++;
960 if (( wake & 2 ) && global_writetimeout ) {
961 chk_writetime = slap_get_time();
964 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
969 slapd_clr_read( ber_socket_t s, int wake )
972 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
974 if ( SLAP_SOCK_IS_ACTIVE( s )) {
975 SLAP_SOCK_CLR_READ( s );
978 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
985 slapd_set_read( ber_socket_t s, int wake )
987 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
989 assert( SLAP_SOCK_IS_ACTIVE( s ));
990 if (!SLAP_SOCK_IS_READ( s )) SLAP_SOCK_SET_READ( s );
992 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
997 slapd_get_writetime()
1000 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
1001 cur = chk_writetime;
1002 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
1007 slapd_clr_writetime( time_t old )
1009 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
1010 if ( chk_writetime == old )
1012 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
1016 slapd_close( ber_socket_t s )
1018 Debug( LDAP_DEBUG_CONNS, "daemon: closing %ld\n",
1020 tcp_close( SLAP_FD2SOCK(s) );
1027 slap_free_listener_addresses( struct sockaddr **sal )
1029 struct sockaddr **sap;
1030 if (sal == NULL) return;
1031 for (sap = sal; *sap != NULL; sap++) ch_free(*sap);
1035 #if defined(LDAP_PF_LOCAL) || defined(SLAP_X_LISTENER_MOD)
1044 assert( exts != NULL );
1045 assert( perms != NULL );
1046 assert( crit != NULL );
1049 for ( i = 0; exts[ i ]; i++ ) {
1050 char *type = exts[ i ];
1053 if ( type[ 0 ] == '!' ) {
1058 if ( strncasecmp( type, LDAPI_MOD_URLEXT "=",
1059 sizeof(LDAPI_MOD_URLEXT "=") - 1 ) == 0 )
1061 char *value = type + ( sizeof(LDAPI_MOD_URLEXT "=") - 1 );
1065 switch (strlen(value)) {
1067 /* skip leading '0' */
1068 if ( value[ 0 ] != '0' ) return LDAP_OTHER;
1072 for ( j = 0; j < 3; j++) {
1075 v = value[ j ] - '0';
1077 if ( v < 0 || v > 7 ) return LDAP_OTHER;
1084 for ( j = 1; j < 10; j++ ) {
1085 static mode_t m[] = { 0,
1086 S_IRUSR, S_IWUSR, S_IXUSR,
1087 S_IRGRP, S_IWGRP, S_IXGRP,
1088 S_IROTH, S_IWOTH, S_IXOTH
1090 static const char c[] = "-rwxrwxrwx";
1092 if ( value[ j ] == c[ j ] ) {
1095 } else if ( value[ j ] != '-' ) {
1108 return LDAP_SUCCESS;
1114 #endif /* LDAP_PF_LOCAL || SLAP_X_LISTENER_MOD */
1116 /* port = 0 indicates AF_LOCAL */
1118 slap_get_listener_addresses(
1120 unsigned short port,
1121 struct sockaddr ***sal )
1123 struct sockaddr **sap;
1125 #ifdef LDAP_PF_LOCAL
1127 *sal = ch_malloc(2 * sizeof(void *));
1128 if (*sal == NULL) return -1;
1131 *sap = ch_malloc(sizeof(struct sockaddr_un));
1132 if (*sap == NULL) goto errexit;
1136 (sizeof(((struct sockaddr_un *)*sap)->sun_path) - 1) )
1138 Debug( LDAP_DEBUG_ANY,
1139 "daemon: domain socket path (%s) too long in URL",
1144 (void)memset( (void *)*sap, '\0', sizeof(struct sockaddr_un) );
1145 (*sap)->sa_family = AF_LOCAL;
1146 strcpy( ((struct sockaddr_un *)*sap)->sun_path, host );
1148 #endif /* LDAP_PF_LOCAL */
1150 #ifdef HAVE_GETADDRINFO
1151 struct addrinfo hints, *res, *sai;
1155 memset( &hints, '\0', sizeof(hints) );
1156 hints.ai_flags = AI_PASSIVE;
1157 hints.ai_socktype = SOCK_STREAM;
1158 hints.ai_family = slap_inet4or6;
1159 snprintf(serv, sizeof serv, "%d", port);
1161 if ( (err = getaddrinfo(host, serv, &hints, &res)) ) {
1162 Debug( LDAP_DEBUG_ANY, "daemon: getaddrinfo() failed: %s\n",
1163 AC_GAI_STRERROR(err), 0, 0);
1168 for (n=2; (sai = sai->ai_next) != NULL; n++) {
1171 *sal = ch_calloc(n, sizeof(void *));
1172 if (*sal == NULL) return -1;
1177 for ( sai=res; sai; sai=sai->ai_next ) {
1178 if( sai->ai_addr == NULL ) {
1179 Debug( LDAP_DEBUG_ANY, "slap_get_listener_addresses: "
1180 "getaddrinfo ai_addr is NULL?\n", 0, 0, 0 );
1185 switch (sai->ai_family) {
1186 # ifdef LDAP_PF_INET6
1188 *sap = ch_malloc(sizeof(struct sockaddr_in6));
1193 *(struct sockaddr_in6 *)*sap =
1194 *((struct sockaddr_in6 *)sai->ai_addr);
1196 # endif /* LDAP_PF_INET6 */
1198 *sap = ch_malloc(sizeof(struct sockaddr_in));
1203 *(struct sockaddr_in *)*sap =
1204 *((struct sockaddr_in *)sai->ai_addr);
1212 (*sap)->sa_family = sai->ai_family;
1220 #else /* ! HAVE_GETADDRINFO */
1223 struct hostent *he = NULL;
1225 if ( host == NULL ) {
1226 in.s_addr = htonl(INADDR_ANY);
1228 } else if ( !inet_aton( host, &in ) ) {
1229 he = gethostbyname( host );
1231 Debug( LDAP_DEBUG_ANY,
1232 "daemon: invalid host %s", host, 0, 0);
1235 for (n = 0; he->h_addr_list[n]; n++) /* empty */;
1238 *sal = ch_malloc((n+1) * sizeof(void *));
1239 if (*sal == NULL) return -1;
1242 for ( i = 0; i<n; i++ ) {
1243 sap[i] = ch_malloc(sizeof(struct sockaddr_in));
1244 if (*sap == NULL) goto errexit;
1246 (void)memset( (void *)sap[i], '\0', sizeof(struct sockaddr_in) );
1247 sap[i]->sa_family = AF_INET;
1248 ((struct sockaddr_in *)sap[i])->sin_port = htons(port);
1249 AC_MEMCPY( &((struct sockaddr_in *)sap[i])->sin_addr,
1250 he ? (struct in_addr *)he->h_addr_list[i] : &in,
1251 sizeof(struct in_addr) );
1254 #endif /* ! HAVE_GETADDRINFO */
1260 slap_free_listener_addresses(*sal);
1274 unsigned short port;
1275 int err, addrlen = 0;
1276 struct sockaddr **sal, **psal;
1277 int socktype = SOCK_STREAM; /* default to COTS */
1280 #if defined(LDAP_PF_LOCAL) || defined(SLAP_X_LISTENER_MOD)
1285 #endif /* LDAP_PF_LOCAL || SLAP_X_LISTENER_MOD */
1287 rc = ldap_url_parse( url, &lud );
1289 if( rc != LDAP_URL_SUCCESS ) {
1290 Debug( LDAP_DEBUG_ANY,
1291 "daemon: listen URL \"%s\" parse error=%d\n",
1296 l.sl_url.bv_val = NULL;
1301 if( ldap_pvt_url_scheme2tls( lud->lud_scheme ) ) {
1302 Debug( LDAP_DEBUG_ANY, "daemon: TLS not supported (%s)\n",
1304 ldap_free_urldesc( lud );
1308 if(! lud->lud_port ) lud->lud_port = LDAP_PORT;
1310 #else /* HAVE_TLS */
1311 l.sl_is_tls = ldap_pvt_url_scheme2tls( lud->lud_scheme );
1313 if(! lud->lud_port ) {
1314 lud->lud_port = l.sl_is_tls ? LDAPS_PORT : LDAP_PORT;
1316 #endif /* HAVE_TLS */
1318 port = (unsigned short) lud->lud_port;
1320 tmp = ldap_pvt_url_scheme2proto(lud->lud_scheme);
1321 if ( tmp == LDAP_PROTO_IPC ) {
1322 #ifdef LDAP_PF_LOCAL
1323 if ( lud->lud_host == NULL || lud->lud_host[0] == '\0' ) {
1324 err = slap_get_listener_addresses(LDAPI_SOCK, 0, &sal);
1326 err = slap_get_listener_addresses(lud->lud_host, 0, &sal);
1328 #else /* ! LDAP_PF_LOCAL */
1330 Debug( LDAP_DEBUG_ANY, "daemon: URL scheme not supported: %s",
1332 ldap_free_urldesc( lud );
1334 #endif /* ! LDAP_PF_LOCAL */
1336 if( lud->lud_host == NULL || lud->lud_host[0] == '\0'
1337 || strcmp(lud->lud_host, "*") == 0 )
1339 err = slap_get_listener_addresses(NULL, port, &sal);
1341 err = slap_get_listener_addresses(lud->lud_host, port, &sal);
1345 #ifdef LDAP_CONNECTIONLESS
1346 l.sl_is_udp = ( tmp == LDAP_PROTO_UDP );
1347 #endif /* LDAP_CONNECTIONLESS */
1349 #if defined(LDAP_PF_LOCAL) || defined(SLAP_X_LISTENER_MOD)
1350 if ( lud->lud_exts ) {
1351 err = get_url_perms( lud->lud_exts, &l.sl_perms, &crit );
1353 l.sl_perms = S_IRWXU | S_IRWXO;
1355 #endif /* LDAP_PF_LOCAL || SLAP_X_LISTENER_MOD */
1357 ldap_free_urldesc( lud );
1358 if ( err ) return -1;
1360 /* If we got more than one address returned, we need to make space
1361 * for it in the slap_listeners array.
1363 for ( num=0; sal[num]; num++ ) /* empty */;
1365 *listeners += num-1;
1366 slap_listeners = ch_realloc( slap_listeners,
1367 (*listeners + 1) * sizeof(Listener *) );
1371 while ( *sal != NULL ) {
1373 switch( (*sal)->sa_family ) {
1377 #ifdef LDAP_PF_INET6
1381 #endif /* LDAP_PF_INET6 */
1382 #ifdef LDAP_PF_LOCAL
1386 #endif /* LDAP_PF_LOCAL */
1392 #ifdef LDAP_CONNECTIONLESS
1393 if( l.sl_is_udp ) socktype = SOCK_DGRAM;
1394 #endif /* LDAP_CONNECTIONLESS */
1396 s = socket( (*sal)->sa_family, socktype, 0);
1397 if ( s == AC_SOCKET_INVALID ) {
1398 int err = sock_errno();
1399 Debug( LDAP_DEBUG_ANY,
1400 "daemon: %s socket() failed errno=%d (%s)\n",
1401 af, err, sock_errstr(err) );
1405 l.sl_sd = SLAP_SOCKNEW( s );
1407 if ( l.sl_sd >= dtblsize ) {
1408 Debug( LDAP_DEBUG_ANY,
1409 "daemon: listener descriptor %ld is too great %ld\n",
1410 (long) l.sl_sd, (long) dtblsize, 0 );
1416 #ifdef LDAP_PF_LOCAL
1417 if ( (*sal)->sa_family == AF_LOCAL ) {
1418 unlink( ((struct sockaddr_un *)*sal)->sun_path );
1420 #endif /* LDAP_PF_LOCAL */
1423 /* enable address reuse */
1425 rc = setsockopt( s, SOL_SOCKET, SO_REUSEADDR,
1426 (char *) &tmp, sizeof(tmp) );
1427 if ( rc == AC_SOCKET_ERROR ) {
1428 int err = sock_errno();
1429 Debug( LDAP_DEBUG_ANY, "slapd(%ld): "
1430 "setsockopt(SO_REUSEADDR) failed errno=%d (%s)\n",
1431 (long) l.sl_sd, err, sock_errstr(err) );
1433 #endif /* SO_REUSEADDR */
1436 switch( (*sal)->sa_family ) {
1438 addrlen = sizeof(struct sockaddr_in);
1440 #ifdef LDAP_PF_INET6
1443 /* Try to use IPv6 sockets for IPv6 only */
1445 rc = setsockopt( s , IPPROTO_IPV6, IPV6_V6ONLY,
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(IPV6_V6ONLY) failed errno=%d (%s)\n",
1451 (long) l.sl_sd, err, sock_errstr(err) );
1453 #endif /* IPV6_V6ONLY */
1454 addrlen = sizeof(struct sockaddr_in6);
1456 #endif /* LDAP_PF_INET6 */
1458 #ifdef LDAP_PF_LOCAL
1463 setsockopt( s, 0, LOCAL_CREDS, &one, sizeof( one ) );
1465 #endif /* LOCAL_CREDS */
1467 addrlen = sizeof( struct sockaddr_un );
1469 #endif /* LDAP_PF_LOCAL */
1472 #ifdef LDAP_PF_LOCAL
1473 /* create socket with all permissions set for those systems
1474 * that honor permissions on sockets (e.g. Linux); typically,
1475 * only write is required. To exploit filesystem permissions,
1476 * place the socket in a directory and use directory's
1477 * permissions. Need write perms to the directory to
1478 * create/unlink the socket; likely need exec perms to access
1479 * the socket (ITS#4709) */
1483 if ( (*sal)->sa_family == AF_LOCAL ) {
1484 old_umask = umask( 0 );
1486 #endif /* LDAP_PF_LOCAL */
1487 rc = bind( s, *sal, addrlen );
1488 #ifdef LDAP_PF_LOCAL
1489 if ( (*sal)->sa_family == AF_LOCAL ) {
1493 #endif /* LDAP_PF_LOCAL */
1496 Debug( LDAP_DEBUG_ANY,
1497 "daemon: bind(%ld) failed errno=%d (%s)\n",
1498 (long)l.sl_sd, err, sock_errstr( err ) );
1504 switch ( (*sal)->sa_family ) {
1505 #ifdef LDAP_PF_LOCAL
1507 char *addr = ((struct sockaddr_un *)*sal)->sun_path;
1508 l.sl_name.bv_len = strlen(addr) + sizeof("PATH=") - 1;
1509 l.sl_name.bv_val = ber_memalloc( l.sl_name.bv_len + 1 );
1510 snprintf( l.sl_name.bv_val, l.sl_name.bv_len + 1,
1513 #endif /* LDAP_PF_LOCAL */
1517 #if defined( HAVE_GETADDRINFO ) && defined( HAVE_INET_NTOP )
1518 char addr[INET_ADDRSTRLEN];
1519 inet_ntop( AF_INET, &((struct sockaddr_in *)*sal)->sin_addr,
1520 addr, sizeof(addr) );
1522 #else /* ! HAVE_GETADDRINFO || ! HAVE_INET_NTOP */
1523 s = inet_ntoa( ((struct sockaddr_in *) *sal)->sin_addr );
1524 #endif /* ! HAVE_GETADDRINFO || ! HAVE_INET_NTOP */
1525 port = ntohs( ((struct sockaddr_in *)*sal) ->sin_port );
1527 ber_memalloc( sizeof("IP=255.255.255.255:65535") );
1528 snprintf( l.sl_name.bv_val, sizeof("IP=255.255.255.255:65535"),
1530 s != NULL ? s : SLAP_STRING_UNKNOWN, port );
1531 l.sl_name.bv_len = strlen( l.sl_name.bv_val );
1534 #ifdef LDAP_PF_INET6
1536 char addr[INET6_ADDRSTRLEN];
1537 inet_ntop( AF_INET6, &((struct sockaddr_in6 *)*sal)->sin6_addr,
1539 port = ntohs( ((struct sockaddr_in6 *)*sal)->sin6_port );
1540 l.sl_name.bv_len = strlen(addr) + sizeof("IP=[]:65535");
1541 l.sl_name.bv_val = ber_memalloc( l.sl_name.bv_len );
1542 snprintf( l.sl_name.bv_val, l.sl_name.bv_len, "IP=[%s]:%d",
1544 l.sl_name.bv_len = strlen( l.sl_name.bv_val );
1546 #endif /* LDAP_PF_INET6 */
1549 Debug( LDAP_DEBUG_ANY, "daemon: unsupported address family (%d)\n",
1550 (int) (*sal)->sa_family, 0, 0 );
1554 AC_MEMCPY(&l.sl_sa, *sal, addrlen);
1555 ber_str2bv( url, 0, 1, &l.sl_url);
1556 li = ch_malloc( sizeof( Listener ) );
1558 slap_listeners[*cur] = li;
1563 slap_free_listener_addresses(psal);
1565 if ( l.sl_url.bv_val == NULL ) {
1566 Debug( LDAP_DEBUG_TRACE,
1567 "slap_open_listener: failed on %s\n", url, 0, 0 );
1571 Debug( LDAP_DEBUG_TRACE, "daemon: listener initialized %s\n",
1572 l.sl_url.bv_val, 0, 0 );
1576 static int sockinit(void);
1577 static int sockdestroy(void);
1580 slapd_daemon_init( const char *urls )
1585 Debug( LDAP_DEBUG_ARGS, "daemon_init: %s\n",
1586 urls ? urls : "<null>", 0, 0 );
1588 ldap_pvt_thread_mutex_init( &slap_daemon.sd_mutex );
1590 ldap_pvt_thread_mutex_init( &slap_daemon.sd_tcpd_mutex );
1591 #endif /* TCP Wrappers */
1593 if( (rc = sockinit()) != 0 ) return rc;
1596 dtblsize = sysconf( _SC_OPEN_MAX );
1597 #elif defined(HAVE_GETDTABLESIZE)
1598 dtblsize = getdtablesize();
1599 #else /* ! HAVE_SYSCONF && ! HAVE_GETDTABLESIZE */
1600 dtblsize = FD_SETSIZE;
1601 #endif /* ! HAVE_SYSCONF && ! HAVE_GETDTABLESIZE */
1603 /* open a pipe (or something equivalent connected to itself).
1604 * we write a byte on this fd whenever we catch a signal. The main
1605 * loop will be select'ing on this socket, and will wake up when
1606 * this byte arrives.
1608 if( (rc = lutil_pair( wake_sds )) < 0 ) {
1609 Debug( LDAP_DEBUG_ANY,
1610 "daemon: lutil_pair() failed rc=%d\n", rc, 0, 0 );
1616 if( urls == NULL ) urls = "ldap:///";
1618 u = ldap_str2charray( urls, " " );
1620 if( u == NULL || u[0] == NULL ) {
1621 Debug( LDAP_DEBUG_ANY, "daemon_init: no urls (%s) provided.\n",
1624 ldap_charray_free( u );
1628 for( i=0; u[i] != NULL; i++ ) {
1629 Debug( LDAP_DEBUG_TRACE, "daemon_init: listen on %s\n",
1634 Debug( LDAP_DEBUG_ANY, "daemon_init: no listeners to open (%s)\n",
1636 ldap_charray_free( u );
1640 Debug( LDAP_DEBUG_TRACE, "daemon_init: %d listeners to open...\n",
1642 slap_listeners = ch_malloc( (i+1)*sizeof(Listener *) );
1644 for(n = 0, j = 0; u[n]; n++ ) {
1645 if ( slap_open_listener( u[n], &i, &j ) ) {
1646 ldap_charray_free( u );
1650 slap_listeners[j] = NULL;
1652 Debug( LDAP_DEBUG_TRACE, "daemon_init: %d listeners opened\n",
1657 if( slapd_register_slp ) {
1658 slapd_slp_init( urls );
1661 #endif /* HAVE_SLP */
1663 ldap_charray_free( u );
1670 slapd_daemon_destroy( void )
1672 connections_destroy();
1674 if ( wake_sds[1] != INVALID_SOCKET &&
1675 SLAP_FD2SOCK( wake_sds[1] ) != SLAP_FD2SOCK( wake_sds[0] ))
1676 #endif /* HAVE_WINSOCK */
1677 tcp_close( SLAP_FD2SOCK(wake_sds[1]) );
1679 if ( wake_sds[0] != INVALID_SOCKET )
1680 #endif /* HAVE_WINSOCK */
1681 tcp_close( SLAP_FD2SOCK(wake_sds[0]) );
1685 if( slapd_register_slp ) {
1689 #endif /* HAVE_SLP */
1692 ldap_pvt_thread_mutex_destroy( &slap_daemon.sd_tcpd_mutex );
1693 #endif /* TCP Wrappers */
1695 ldap_pvt_thread_mutex_destroy( &slap_daemon.sd_mutex );
1706 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1707 Listener *lr = slap_listeners[l];
1709 if ( lr->sl_sd != AC_SOCKET_INVALID ) {
1710 if ( remove ) slapd_remove( lr->sl_sd, NULL, 0, 0, 0 );
1712 #ifdef LDAP_PF_LOCAL
1713 if ( lr->sl_sa.sa_addr.sa_family == AF_LOCAL ) {
1714 unlink( lr->sl_sa.sa_un_addr.sun_path );
1716 #endif /* LDAP_PF_LOCAL */
1718 slapd_close( lr->sl_sd );
1721 if ( lr->sl_url.bv_val ) {
1722 ber_memfree( lr->sl_url.bv_val );
1725 if ( lr->sl_name.bv_val ) {
1726 ber_memfree( lr->sl_name.bv_val );
1730 slap_listeners[l] = NULL;
1740 ber_socket_t s, sfd;
1741 ber_socklen_t len = sizeof(from);
1744 struct berval authid = BER_BVNULL;
1745 #ifdef SLAPD_RLOOKUPS
1746 char hbuf[NI_MAXHOST];
1747 #endif /* SLAPD_RLOOKUPS */
1749 char *dnsname = NULL;
1750 char *peeraddr = NULL;
1751 #ifdef LDAP_PF_LOCAL
1752 char peername[MAXPATHLEN + sizeof("PATH=")];
1753 #ifdef LDAP_PF_LOCAL_SENDMSG
1755 struct berval peerbv = BER_BVNULL;
1757 #elif defined(LDAP_PF_INET6)
1758 char peername[sizeof("IP=[ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff]:65535")];
1759 #else /* ! LDAP_PF_LOCAL && ! LDAP_PF_INET6 */
1760 char peername[sizeof("IP=255.255.255.255:65336")];
1761 #endif /* LDAP_PF_LOCAL */
1764 Debug( LDAP_DEBUG_TRACE,
1765 ">>> slap_listener(%s)\n",
1766 sl->sl_url.bv_val, 0, 0 );
1770 #ifdef LDAP_CONNECTIONLESS
1771 if ( sl->sl_is_udp ) return 1;
1772 #endif /* LDAP_CONNECTIONLESS */
1774 # ifdef LDAP_PF_LOCAL
1775 /* FIXME: apparently accept doesn't fill
1776 * the sun_path sun_path member */
1777 from.sa_un_addr.sun_path[0] = '\0';
1778 # endif /* LDAP_PF_LOCAL */
1780 s = accept( SLAP_FD2SOCK( sl->sl_sd ), (struct sockaddr *) &from, &len );
1782 /* Resume the listener FD to allow concurrent-processing of
1783 * additional incoming connections.
1788 if ( s == AC_SOCKET_INVALID ) {
1789 int err = sock_errno();
1800 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
1802 /* Stop listening until an existing session closes */
1804 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
1807 Debug( LDAP_DEBUG_ANY,
1808 "daemon: accept(%ld) failed errno=%d (%s)\n",
1809 (long) sl->sl_sd, err, sock_errstr(err) );
1810 ldap_pvt_thread_yield();
1813 sfd = SLAP_SOCKNEW( s );
1815 /* make sure descriptor number isn't too great */
1816 if ( sfd >= dtblsize ) {
1817 Debug( LDAP_DEBUG_ANY,
1818 "daemon: %ld beyond descriptor table size %ld\n",
1819 (long) sfd, (long) dtblsize, 0 );
1822 ldap_pvt_thread_yield();
1827 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
1828 /* newly accepted stream should not be in any of the FD SETS */
1829 assert( SLAP_SOCK_NOT_ACTIVE( sfd ));
1830 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
1831 #endif /* LDAP_DEBUG */
1833 #if defined( SO_KEEPALIVE ) || defined( TCP_NODELAY )
1834 #ifdef LDAP_PF_LOCAL
1835 /* for IPv4 and IPv6 sockets only */
1836 if ( from.sa_addr.sa_family != AF_LOCAL )
1837 #endif /* LDAP_PF_LOCAL */
1842 /* enable keep alives */
1844 rc = setsockopt( s, SOL_SOCKET, SO_KEEPALIVE,
1845 (char *) &tmp, sizeof(tmp) );
1846 if ( rc == AC_SOCKET_ERROR ) {
1847 int err = sock_errno();
1848 Debug( LDAP_DEBUG_ANY,
1849 "slapd(%ld): setsockopt(SO_KEEPALIVE) failed "
1850 "errno=%d (%s)\n", (long) sfd, err, sock_errstr(err) );
1852 #endif /* SO_KEEPALIVE */
1854 /* enable no delay */
1856 rc = setsockopt( s, IPPROTO_TCP, TCP_NODELAY,
1857 (char *)&tmp, sizeof(tmp) );
1858 if ( rc == AC_SOCKET_ERROR ) {
1859 int err = sock_errno();
1860 Debug( LDAP_DEBUG_ANY,
1861 "slapd(%ld): setsockopt(TCP_NODELAY) failed "
1862 "errno=%d (%s)\n", (long) sfd, err, sock_errstr(err) );
1864 #endif /* TCP_NODELAY */
1866 #endif /* SO_KEEPALIVE || TCP_NODELAY */
1868 Debug( LDAP_DEBUG_CONNS,
1869 "daemon: listen=%ld, new connection on %ld\n",
1870 (long) sl->sl_sd, (long) sfd, 0 );
1873 switch ( from.sa_addr.sa_family ) {
1874 # ifdef LDAP_PF_LOCAL
1876 cflag |= CONN_IS_IPC;
1878 /* FIXME: apparently accept doesn't fill
1879 * the sun_path sun_path member */
1880 if ( from.sa_un_addr.sun_path[0] == '\0' ) {
1881 AC_MEMCPY( from.sa_un_addr.sun_path,
1882 sl->sl_sa.sa_un_addr.sun_path,
1883 sizeof( from.sa_un_addr.sun_path ) );
1886 sprintf( peername, "PATH=%s", from.sa_un_addr.sun_path );
1892 #ifdef LDAP_PF_LOCAL_SENDMSG
1893 peerbv.bv_val = peerbuf;
1894 peerbv.bv_len = sizeof( peerbuf );
1896 if( LUTIL_GETPEEREID( s, &uid, &gid, &peerbv ) == 0 ) {
1897 authid.bv_val = ch_malloc(
1898 STRLENOF( "gidNumber=4294967295+uidNumber=4294967295,"
1899 "cn=peercred,cn=external,cn=auth" ) + 1 );
1900 authid.bv_len = sprintf( authid.bv_val,
1901 "gidNumber=%d+uidNumber=%d,"
1902 "cn=peercred,cn=external,cn=auth",
1903 (int) gid, (int) uid );
1904 assert( authid.bv_len <=
1905 STRLENOF( "gidNumber=4294967295+uidNumber=4294967295,"
1906 "cn=peercred,cn=external,cn=auth" ) );
1911 #endif /* LDAP_PF_LOCAL */
1913 # ifdef LDAP_PF_INET6
1915 if ( IN6_IS_ADDR_V4MAPPED(&from.sa_in6_addr.sin6_addr) ) {
1916 peeraddr = inet_ntoa( *((struct in_addr *)
1917 &from.sa_in6_addr.sin6_addr.s6_addr[12]) );
1918 sprintf( peername, "IP=%s:%d",
1919 peeraddr != NULL ? peeraddr : SLAP_STRING_UNKNOWN,
1920 (unsigned) ntohs( from.sa_in6_addr.sin6_port ) );
1922 char addr[INET6_ADDRSTRLEN];
1924 peeraddr = (char *) inet_ntop( AF_INET6,
1925 &from.sa_in6_addr.sin6_addr,
1926 addr, sizeof addr );
1927 sprintf( peername, "IP=[%s]:%d",
1928 peeraddr != NULL ? peeraddr : SLAP_STRING_UNKNOWN,
1929 (unsigned) ntohs( from.sa_in6_addr.sin6_port ) );
1932 # endif /* LDAP_PF_INET6 */
1935 peeraddr = inet_ntoa( from.sa_in_addr.sin_addr );
1936 sprintf( peername, "IP=%s:%d",
1937 peeraddr != NULL ? peeraddr : SLAP_STRING_UNKNOWN,
1938 (unsigned) ntohs( from.sa_in_addr.sin_port ) );
1946 if ( ( from.sa_addr.sa_family == AF_INET )
1947 #ifdef LDAP_PF_INET6
1948 || ( from.sa_addr.sa_family == AF_INET6 )
1949 #endif /* LDAP_PF_INET6 */
1953 #ifdef SLAPD_RLOOKUPS
1954 if ( use_reverse_lookup ) {
1956 if (ldap_pvt_get_hname( (const struct sockaddr *)&from, len, hbuf,
1957 sizeof(hbuf), &herr ) == 0) {
1958 ldap_pvt_str2lower( hbuf );
1962 #endif /* SLAPD_RLOOKUPS */
1967 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_tcpd_mutex );
1968 rc = hosts_ctl("slapd",
1969 dnsname != NULL ? dnsname : SLAP_STRING_UNKNOWN,
1970 peeraddr != NULL ? peeraddr : SLAP_STRING_UNKNOWN,
1971 SLAP_STRING_UNKNOWN );
1972 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_tcpd_mutex );
1975 Statslog( LDAP_DEBUG_STATS,
1976 "fd=%ld DENIED from %s (%s)\n",
1978 dnsname != NULL ? dnsname : SLAP_STRING_UNKNOWN,
1979 peeraddr != NULL ? peeraddr : SLAP_STRING_UNKNOWN,
1985 #endif /* HAVE_TCPD */
1989 if ( sl->sl_is_tls ) cflag |= CONN_IS_TLS;
1991 c = connection_init(sfd, sl,
1992 dnsname != NULL ? dnsname : SLAP_STRING_UNKNOWN,
1993 peername, cflag, ssf,
1994 authid.bv_val ? &authid : NULL
1995 LDAP_PF_LOCAL_SENDMSG_ARG(&peerbv));
1997 if( authid.bv_val ) ch_free(authid.bv_val);
2000 Debug( LDAP_DEBUG_ANY,
2001 "daemon: connection_init(%ld, %s, %s) failed.\n",
2002 (long) sfd, peername, sl->sl_name.bv_val );
2007 Statslog( LDAP_DEBUG_STATS,
2008 "conn=%ld fd=%ld ACCEPT from %s (%s)\n",
2009 c->c_connid, (long) sfd, peername, sl->sl_name.bv_val,
2016 slap_listener_thread(
2021 Listener *sl = (Listener *)ptr;
2023 rc = slap_listener( sl );
2025 if( rc != LDAP_SUCCESS ) {
2026 Debug( LDAP_DEBUG_ANY,
2027 "slap_listener_thread(%s): failed err=%d",
2028 sl->sl_url.bv_val, rc, 0 );
2035 slap_listener_activate(
2040 Debug( LDAP_DEBUG_TRACE, "slap_listener_activate(%d): %s\n",
2041 sl->sl_sd, sl->sl_busy ? "busy" : "", 0 );
2045 rc = ldap_pvt_thread_pool_submit( &connection_pool,
2046 slap_listener_thread, (void *) sl );
2049 Debug( LDAP_DEBUG_ANY,
2050 "listener_activate(%d): submit failed (%d)\n",
2061 time_t last_idle_check = 0;
2064 #define SLAPD_IDLE_CHECK_LIMIT 4
2066 if ( global_idletimeout > 0 ) {
2067 last_idle_check = slap_get_time();
2070 slapd_add( wake_sds[0], 0, NULL );
2072 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
2073 if ( slap_listeners[l]->sl_sd == AC_SOCKET_INVALID ) continue;
2075 #ifdef LDAP_CONNECTIONLESS
2076 /* Since this is connectionless, the data port is the
2077 * listening port. The listen() and accept() calls
2080 if ( slap_listeners[l]->sl_is_udp )
2082 #endif /* LDAP_CONNECTIONLESS */
2084 if ( listen( SLAP_FD2SOCK( slap_listeners[l]->sl_sd ), SLAPD_LISTEN_BACKLOG ) == -1 ) {
2085 int err = sock_errno();
2087 #ifdef LDAP_PF_INET6
2088 /* If error is EADDRINUSE, we are trying to listen to INADDR_ANY and
2089 * we are already listening to in6addr_any, then we want to ignore
2090 * this and continue.
2092 if ( err == EADDRINUSE ) {
2094 struct sockaddr_in sa = slap_listeners[l]->sl_sa.sa_in_addr;
2095 struct sockaddr_in6 sa6;
2097 if ( sa.sin_family == AF_INET &&
2098 sa.sin_addr.s_addr == htonl(INADDR_ANY) ) {
2099 for ( i = 0 ; i < l; i++ ) {
2100 sa6 = slap_listeners[i]->sl_sa.sa_in6_addr;
2101 if ( sa6.sin6_family == AF_INET6 &&
2102 !memcmp( &sa6.sin6_addr, &in6addr_any,
2103 sizeof(struct in6_addr) ) )
2110 /* We are already listening to in6addr_any */
2111 Debug( LDAP_DEBUG_CONNS,
2112 "daemon: Attempt to listen to 0.0.0.0 failed, "
2113 "already listening on ::, assuming IPv4 included\n",
2115 slapd_close( slap_listeners[l]->sl_sd );
2116 slap_listeners[l]->sl_sd = AC_SOCKET_INVALID;
2121 #endif /* LDAP_PF_INET6 */
2122 Debug( LDAP_DEBUG_ANY,
2123 "daemon: listen(%s, 5) failed errno=%d (%s)\n",
2124 slap_listeners[l]->sl_url.bv_val, err,
2129 /* make the listening socket non-blocking */
2130 if ( ber_pvt_socket_set_nonblock( SLAP_FD2SOCK( slap_listeners[l]->sl_sd ), 1 ) < 0 ) {
2131 Debug( LDAP_DEBUG_ANY, "slapd_daemon_task: "
2132 "set nonblocking on a listening socket failed\n",
2138 slapd_add( slap_listeners[l]->sl_sd, 0, slap_listeners[l] );
2141 #ifdef HAVE_NT_SERVICE_MANAGER
2142 if ( started_event != NULL ) {
2143 ldap_pvt_thread_cond_signal( &started_event );
2145 #endif /* HAVE_NT_SERVICE_MANAGER */
2147 /* initialization complete. Here comes the loop. */
2149 while ( !slapd_shutdown ) {
2154 #if SLAP_EVENTS_ARE_INDEXED
2155 ber_socket_t nrfds, nwfds;
2156 #endif /* SLAP_EVENTS_ARE_INDEXED */
2157 #define SLAPD_EBADF_LIMIT 16
2164 struct timeval *tvp;
2170 now = slap_get_time();
2172 if ( global_idletimeout > 0 || chk_writetime ) {
2174 /* Set the select timeout.
2175 * Don't just truncate, preserve the fractions of
2176 * seconds to prevent sleeping for zero time.
2178 if ( chk_writetime ) {
2179 tv.tv_sec = global_writetimeout;
2180 tv.tv_usec = global_writetimeout;
2181 if ( difftime( chk_writetime, now ) < 0 )
2184 tv.tv_sec = global_idletimeout / SLAPD_IDLE_CHECK_LIMIT;
2185 tv.tv_usec = global_idletimeout - \
2186 ( tv.tv_sec * SLAPD_IDLE_CHECK_LIMIT );
2187 tv.tv_usec *= 1000000 / SLAPD_IDLE_CHECK_LIMIT;
2188 if ( difftime( last_idle_check +
2189 global_idletimeout/SLAPD_IDLE_CHECK_LIMIT, now ) < 0 )
2193 connections_timeout_idle( now );
2194 last_idle_check = now;
2202 if ( slapd_gentle_shutdown ) {
2203 ber_socket_t active;
2205 if ( slapd_gentle_shutdown == 1 ) {
2207 Debug( LDAP_DEBUG_ANY, "slapd gentle shutdown\n", 0, 0, 0 );
2208 close_listeners( 1 );
2209 frontendDB->be_restrictops |= SLAP_RESTRICT_OP_WRITES;
2210 LDAP_STAILQ_FOREACH(be, &backendDB, be_next) {
2211 be->be_restrictops |= SLAP_RESTRICT_OP_WRITES;
2213 slapd_gentle_shutdown = 2;
2216 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
2217 active = slap_daemon.sd_nactives;
2218 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
2219 if ( active == 0 ) {
2227 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
2229 nwriters = slap_daemon.sd_nwriters;
2231 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
2232 Listener *lr = slap_listeners[l];
2234 if ( lr->sl_sd == AC_SOCKET_INVALID ) continue;
2236 if ( lr->sl_mute || lr->sl_busy )
2238 SLAP_SOCK_CLR_READ( lr->sl_sd );
2240 SLAP_SOCK_SET_READ( lr->sl_sd );
2246 nfds = SLAP_EVENT_MAX;
2248 if ( global_idletimeout && slap_daemon.sd_nactives ) at = 1;
2250 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
2253 #if defined(HAVE_YIELDING_SELECT) || defined(NO_THREADS)
2254 && ( tv.tv_sec || tv.tv_usec )
2255 #endif /* HAVE_YIELDING_SELECT || NO_THREADS */
2263 ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
2264 rtask = ldap_pvt_runqueue_next_sched( &slapd_rq, &cat );
2265 while ( rtask && cat.tv_sec && cat.tv_sec <= now ) {
2266 if ( ldap_pvt_runqueue_isrunning( &slapd_rq, rtask )) {
2267 ldap_pvt_runqueue_resched( &slapd_rq, rtask, 0 );
2269 ldap_pvt_runqueue_runtask( &slapd_rq, rtask );
2270 ldap_pvt_runqueue_resched( &slapd_rq, rtask, 0 );
2271 ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
2272 ldap_pvt_thread_pool_submit( &connection_pool,
2273 rtask->routine, (void *) rtask );
2274 ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
2276 rtask = ldap_pvt_runqueue_next_sched( &slapd_rq, &cat );
2278 ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
2280 if ( rtask && cat.tv_sec ) {
2281 /* NOTE: diff __should__ always be >= 0,
2282 * AFAI understand; however (ITS#4872),
2283 * time_t might be unsigned in some systems,
2284 * while difftime() returns a double */
2285 double diff = difftime( cat.tv_sec, now );
2289 if ( tvp == NULL || diff < tv.tv_sec ) {
2296 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
2297 Listener *lr = slap_listeners[l];
2299 if ( lr->sl_sd == AC_SOCKET_INVALID ) {
2303 if ( lr->sl_mute ) {
2304 Debug( LDAP_DEBUG_CONNS,
2305 "daemon: " SLAP_EVENT_FNAME ": "
2306 "listen=%d muted\n",
2311 if ( lr->sl_busy ) {
2312 Debug( LDAP_DEBUG_CONNS,
2313 "daemon: " SLAP_EVENT_FNAME ": "
2319 Debug( LDAP_DEBUG_CONNS,
2320 "daemon: " SLAP_EVENT_FNAME ": "
2321 "listen=%d active_threads=%d tvp=%s\n",
2322 lr->sl_sd, at, tvp == NULL ? "NULL" : "zero" );
2325 SLAP_EVENT_WAIT( tvp, &ns );
2327 case -1: { /* failure - try again */
2328 int err = sock_errno();
2330 if ( err != EINTR ) {
2333 /* Don't log unless we got it twice in a row */
2334 if ( !( ebadf & 1 ) ) {
2335 Debug( LDAP_DEBUG_ANY,
2341 sock_errstr( err ) );
2343 if ( ebadf >= SLAPD_EBADF_LIMIT ) {
2350 case 0: /* timeout - let threads run */
2352 #ifndef HAVE_YIELDING_SELECT
2353 Debug( LDAP_DEBUG_CONNS, "daemon: " SLAP_EVENT_FNAME
2354 "timeout - yielding\n",
2357 ldap_pvt_thread_yield();
2358 #endif /* ! HAVE_YIELDING_SELECT */
2361 default: /* something happened - deal with it */
2362 if ( slapd_shutdown ) continue;
2365 Debug( LDAP_DEBUG_CONNS,
2366 "daemon: activity on %d descriptor%s\n",
2367 ns, ns != 1 ? "s" : "", 0 );
2371 #if SLAP_EVENTS_ARE_INDEXED
2372 if ( SLAP_EVENT_IS_READ( wake_sds[0] ) ) {
2374 SLAP_EVENT_CLR_READ( wake_sds[0] );
2376 tcp_read( SLAP_FD2SOCK(wake_sds[0]), c, sizeof(c) );
2377 Debug( LDAP_DEBUG_CONNS, "daemon: waked\n", 0, 0, 0 );
2381 /* The event slot equals the descriptor number - this is
2382 * true for Unix select and poll. We treat Windows select
2383 * like this too, even though it's a kludge.
2385 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
2388 if ( ns <= 0 ) break;
2389 if ( slap_listeners[l]->sl_sd == AC_SOCKET_INVALID ) continue;
2390 #ifdef LDAP_CONNECTIONLESS
2391 if ( slap_listeners[l]->sl_is_udp ) continue;
2392 #endif /* LDAP_CONNECTIONLESS */
2393 if ( !SLAP_EVENT_IS_READ( slap_listeners[l]->sl_sd ) ) continue;
2396 SLAP_EVENT_CLR_READ( slap_listeners[l]->sl_sd );
2397 SLAP_EVENT_CLR_WRITE( slap_listeners[l]->sl_sd );
2400 rc = slap_listener_activate( slap_listeners[l] );
2403 /* bypass the following tests if no descriptors left */
2405 #ifndef HAVE_YIELDING_SELECT
2406 ldap_pvt_thread_yield();
2407 #endif /* HAVE_YIELDING_SELECT */
2411 Debug( LDAP_DEBUG_CONNS, "daemon: activity on:", 0, 0, 0 );
2414 for ( i = 0; i < nfds; i++ ) {
2417 r = SLAP_EVENT_IS_READ( i );
2418 /* writefds was not initialized if nwriters was zero */
2419 w = nwriters ? SLAP_EVENT_IS_WRITE( i ) : 0;
2421 Debug( LDAP_DEBUG_CONNS, " %d%s%s", i,
2422 r ? "r" : "", w ? "w" : "" );
2432 if ( ns <= 0 ) break;
2434 Debug( LDAP_DEBUG_CONNS, "\n", 0, 0, 0 );
2436 /* loop through the writers */
2437 for ( i = 0; nwfds > 0; i++ ) {
2439 if ( ! SLAP_EVENT_IS_WRITE( i ) ) continue;
2442 SLAP_EVENT_CLR_WRITE( wd );
2445 Debug( LDAP_DEBUG_CONNS,
2446 "daemon: write active on %d\n",
2450 * NOTE: it is possible that the connection was closed
2451 * and that the stream is now inactive.
2452 * connection_write() must validate the stream is still
2455 * ITS#4338: if the stream is invalid, there is no need to
2456 * close it here. It has already been closed in connection.c.
2458 if ( connection_write( wd ) < 0 ) {
2459 if ( SLAP_EVENT_IS_READ( wd ) ) {
2460 SLAP_EVENT_CLR_READ( (unsigned) wd );
2466 for ( i = 0; nrfds > 0; i++ ) {
2468 if ( ! SLAP_EVENT_IS_READ( i ) ) continue;
2470 SLAP_EVENT_CLR_READ( rd );
2473 Debug ( LDAP_DEBUG_CONNS,
2474 "daemon: read activity on %d\n", rd, 0, 0 );
2476 * NOTE: it is possible that the connection was closed
2477 * and that the stream is now inactive.
2478 * connection_read() must valid the stream is still
2482 connection_read_activate( rd );
2484 #else /* !SLAP_EVENTS_ARE_INDEXED */
2486 /* The events are returned in an arbitrary list. This is true
2487 * for /dev/poll, epoll and kqueue. In order to prioritize things
2488 * so that we can handle wake_sds first, listeners second, and then
2489 * all other connections last (as we do for select), we would need
2490 * to use multiple event handles and cascade them.
2492 * That seems like a bit of hassle. So the wake_sds check has been
2493 * skipped. For epoll and kqueue we can associate arbitrary data with
2494 * an event, so we could use pointers to the listener structure
2495 * instead of just the file descriptor. For /dev/poll we have to
2496 * search the listeners array for a matching descriptor.
2498 * We now handle wake events when we see them; they are not given
2502 Debug( LDAP_DEBUG_CONNS, "daemon: activity on:", 0, 0, 0 );
2504 for ( i = 0; i < ns; i++ ) {
2507 /* Don't log listener events */
2508 if ( SLAP_EVENT_IS_LISTENER( i )
2509 #ifdef LDAP_CONNECTIONLESS
2510 && !( (SLAP_EVENT_LISTENER( i ))->sl_is_udp )
2511 #endif /* LDAP_CONNECTIONLESS */
2517 fd = SLAP_EVENT_FD( i );
2518 /* Don't log internal wake events */
2519 if ( fd == wake_sds[0] ) continue;
2521 r = SLAP_EVENT_IS_READ( i );
2522 w = SLAP_EVENT_IS_WRITE( i );
2524 Debug( LDAP_DEBUG_CONNS, " %d%s%s", fd,
2525 r ? "r" : "", w ? "w" : "" );
2528 Debug( LDAP_DEBUG_CONNS, "\n", 0, 0, 0 );
2529 #endif /* LDAP_DEBUG */
2531 for ( i = 0; i < ns; i++ ) {
2532 int rc = 1, fd, w = 0, r = 0;
2534 if ( SLAP_EVENT_IS_LISTENER( i ) ) {
2535 rc = slap_listener_activate( SLAP_EVENT_LISTENER( i ) );
2538 /* If we found a regular listener, rc is now zero, and we
2539 * can skip the data portion. But if it was a UDP listener
2540 * then rc is still 1, and we want to handle the data.
2543 fd = SLAP_EVENT_FD( i );
2545 /* Handle wake events */
2546 if ( fd == wake_sds[0] ) {
2549 tcp_read( SLAP_FD2SOCK(wake_sds[0]), c, sizeof(c) );
2553 if ( SLAP_EVENT_IS_WRITE( i ) ) {
2554 Debug( LDAP_DEBUG_CONNS,
2555 "daemon: write active on %d\n",
2558 SLAP_EVENT_CLR_WRITE( i );
2562 * NOTE: it is possible that the connection was closed
2563 * and that the stream is now inactive.
2564 * connection_write() must valid the stream is still
2567 if ( connection_write( fd ) < 0 ) {
2571 /* If event is a read */
2572 if ( SLAP_EVENT_IS_READ( i ))
2575 Debug( LDAP_DEBUG_CONNS,
2576 "daemon: read active on %d\n",
2580 SLAP_EVENT_CLR_READ( i );
2583 /* Don't keep reporting the hangup
2585 if ( SLAP_SOCK_IS_ACTIVE( fd )) {
2586 SLAP_EPOLL_SOCK_SET( fd, EPOLLET );
2590 connection_read_activate( fd );
2594 #endif /* SLAP_EVENTS_ARE_INDEXED */
2596 #ifndef HAVE_YIELDING_SELECT
2597 ldap_pvt_thread_yield();
2598 #endif /* ! HAVE_YIELDING_SELECT */
2601 if ( slapd_shutdown == 1 ) {
2602 Debug( LDAP_DEBUG_ANY,
2603 "daemon: shutdown requested and initiated.\n",
2606 } else if ( slapd_shutdown == 2 ) {
2607 #ifdef HAVE_NT_SERVICE_MANAGER
2608 Debug( LDAP_DEBUG_ANY,
2609 "daemon: shutdown initiated by Service Manager.\n",
2611 #else /* !HAVE_NT_SERVICE_MANAGER */
2612 Debug( LDAP_DEBUG_ANY,
2613 "daemon: abnormal condition, shutdown initiated.\n",
2615 #endif /* !HAVE_NT_SERVICE_MANAGER */
2617 Debug( LDAP_DEBUG_ANY,
2618 "daemon: no active streams, shutdown initiated.\n",
2622 if ( slapd_gentle_shutdown != 2 ) close_listeners ( 0 );
2624 if ( !slapd_gentle_shutdown ) {
2625 slapd_abrupt_shutdown = 1;
2626 connections_shutdown();
2629 if ( LogTest( LDAP_DEBUG_ANY )) {
2630 int t = ldap_pvt_thread_pool_backload( &connection_pool );
2631 Debug( LDAP_DEBUG_ANY,
2632 "slapd shutdown: waiting for %d operations/tasks to finish\n",
2635 ldap_pvt_thread_pool_destroy( &connection_pool, 1 );
2637 free( slap_listeners );
2638 slap_listeners = NULL;
2644 #ifdef LDAP_CONNECTIONLESS
2646 connectionless_init( void )
2650 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
2651 Listener *lr = slap_listeners[l];
2654 if ( !lr->sl_is_udp ) {
2658 c = connection_init( lr->sl_sd, lr, "", "",
2659 CONN_IS_UDP, (slap_ssf_t) 0, NULL
2660 LDAP_PF_LOCAL_SENDMSG_ARG(NULL));
2663 Debug( LDAP_DEBUG_TRACE,
2664 "connectionless_init: failed on %s (%d)\n",
2665 lr->sl_url, lr->sl_sd, 0 );
2673 #endif /* LDAP_CONNECTIONLESS */
2676 slapd_daemon( void )
2680 #ifdef LDAP_CONNECTIONLESS
2681 connectionless_init();
2682 #endif /* LDAP_CONNECTIONLESS */
2684 #define SLAPD_LISTENER_THREAD 1
2685 #if defined( SLAPD_LISTENER_THREAD )
2687 ldap_pvt_thread_t listener_tid;
2689 /* listener as a separate THREAD */
2690 rc = ldap_pvt_thread_create( &listener_tid,
2691 0, slapd_daemon_task, NULL );
2694 Debug( LDAP_DEBUG_ANY,
2695 "listener ldap_pvt_thread_create failed (%d)\n", rc, 0, 0 );
2699 /* wait for the listener thread to complete */
2700 ldap_pvt_thread_join( listener_tid, (void *)NULL );
2702 #else /* ! SLAPD_LISTENER_THREAD */
2703 /* experimental code */
2704 slapd_daemon_task( NULL );
2705 #endif /* ! SLAPD_LISTENER_THREAD */
2713 #if defined( HAVE_WINSOCK2 )
2714 WORD wVersionRequested;
2718 wVersionRequested = MAKEWORD( 2, 0 );
2720 err = WSAStartup( wVersionRequested, &wsaData );
2722 /* Tell the user that we couldn't find a usable */
2727 /* Confirm that the WinSock DLL supports 2.0.*/
2728 /* Note that if the DLL supports versions greater */
2729 /* than 2.0 in addition to 2.0, it will still return */
2730 /* 2.0 in wVersion since that is the version we */
2733 if ( LOBYTE( wsaData.wVersion ) != 2 ||
2734 HIBYTE( wsaData.wVersion ) != 0 )
2736 /* Tell the user that we couldn't find a usable */
2742 /* The WinSock DLL is acceptable. Proceed. */
2743 #elif defined( HAVE_WINSOCK )
2745 if ( WSAStartup( 0x0101, &wsaData ) != 0 ) return -1;
2746 #endif /* ! HAVE_WINSOCK2 && ! HAVE_WINSOCK */
2754 #if defined( HAVE_WINSOCK2 ) || defined( HAVE_WINSOCK )
2756 #endif /* HAVE_WINSOCK2 || HAVE_WINSOCK */
2763 slap_sig_shutdown( int sig )
2765 int save_errno = errno;
2768 Debug(LDAP_DEBUG_TRACE, "slap_sig_shutdown: signal %d\n", sig, 0, 0);
2772 * If the NT Service Manager is controlling the server, we don't
2773 * want SIGBREAK to kill the server. For some strange reason,
2774 * SIGBREAK is generated when a user logs out.
2777 #if defined(HAVE_NT_SERVICE_MANAGER) && defined(SIGBREAK)
2778 if (is_NT_Service && sig == SIGBREAK) {
2781 #endif /* HAVE_NT_SERVICE_MANAGER && SIGBREAK */
2783 if (sig == SIGHUP && global_gentlehup && slapd_gentle_shutdown == 0) {
2784 slapd_gentle_shutdown = 1;
2793 /* reinstall self */
2794 (void) SIGNAL_REINSTALL( sig, slap_sig_shutdown );
2800 slap_sig_wake( int sig )
2802 int save_errno = errno;
2806 /* reinstall self */
2807 (void) SIGNAL_REINSTALL( sig, slap_sig_wake );
2814 slapd_add_internal( ber_socket_t s, int isactive )
2816 slapd_add( s, isactive, NULL );
2820 slapd_get_listeners( void )
2822 return slap_listeners;
2826 slap_wake_listener()