2 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
4 * Copyright 1998-2017 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"
48 #if defined(HAVE_SYS_EPOLL_H) && defined(HAVE_EPOLL)
49 # include <sys/epoll.h>
50 #elif defined(SLAP_X_DEVPOLL) && defined(HAVE_SYS_DEVPOLL_H) && defined(HAVE_DEVPOLL)
51 # include <sys/types.h>
52 # include <sys/stat.h>
54 # include <sys/devpoll.h>
55 #endif /* ! epoll && ! /dev/poll */
58 int allow_severity = LOG_INFO;
59 int deny_severity = LOG_NOTICE;
60 #endif /* TCP Wrappers */
63 # include <sys/stat.h>
64 /* this should go in <ldap.h> as soon as it is accepted */
65 # define LDAPI_MOD_URLEXT "x-mod"
66 #endif /* LDAP_PF_LOCAL */
69 int slap_inet4or6 = AF_UNSPEC;
71 int slap_inet4or6 = AF_INET;
76 ber_socket_t dtblsize;
77 slap_ssf_t local_ssf = LDAP_PVT_SASL_LOCAL_SSF;
78 struct runqueue_s slapd_rq;
80 #ifndef SLAPD_MAX_DAEMON_THREADS
81 #define SLAPD_MAX_DAEMON_THREADS 16
83 int slapd_daemon_threads = 1;
84 int slapd_daemon_mask;
86 #ifdef LDAP_TCP_BUFFER
89 #endif /* LDAP_TCP_BUFFER */
91 Listener **slap_listeners = NULL;
92 static volatile sig_atomic_t listening = 1; /* 0 when slap_listeners closed */
93 static ldap_pvt_thread_t *listener_tid;
95 #ifndef SLAPD_LISTEN_BACKLOG
96 #define SLAPD_LISTEN_BACKLOG 1024
97 #endif /* ! SLAPD_LISTEN_BACKLOG */
99 #define DAEMON_ID(fd) (fd & slapd_daemon_mask)
101 static ber_socket_t wake_sds[SLAPD_MAX_DAEMON_THREADS][2];
104 static volatile int waking;
106 #define WAKE_LISTENER(l,w) do { \
107 if ((w) && ++waking < 5) { \
108 tcp_write( SLAP_FD2SOCK(wake_sds[l][1]), "0", 1 ); \
111 #else /* ! NO_THREADS */
112 #define WAKE_LISTENER(l,w) do { \
114 tcp_write( SLAP_FD2SOCK(wake_sds[l][1]), "0", 1 ); \
117 #endif /* ! NO_THREADS */
119 volatile sig_atomic_t slapd_shutdown = 0;
120 volatile sig_atomic_t slapd_gentle_shutdown = 0;
121 volatile sig_atomic_t slapd_abrupt_shutdown = 0;
124 ldap_pvt_thread_mutex_t slapd_ws_mutex;
125 SOCKET *slapd_ws_sockets;
129 #define SD_LISTENER 8
133 static ldap_pvt_thread_mutex_t sd_tcpd_mutex;
134 #endif /* TCP Wrappers */
136 typedef struct slap_daemon_st {
137 ldap_pvt_thread_mutex_t sd_mutex;
139 ber_socket_t sd_nactives;
143 #if defined(HAVE_EPOLL)
144 struct epoll_event *sd_epolls;
147 #elif defined(SLAP_X_DEVPOLL) && defined(HAVE_DEVPOLL)
149 struct pollfd *sd_pollfd;
153 #else /* ! epoll && ! /dev/poll */
157 #else /* ! HAVE_WINSOCK */
161 #endif /* ! HAVE_WINSOCK */
162 #endif /* ! epoll && ! /dev/poll */
165 static slap_daemon_st slap_daemon[SLAPD_MAX_DAEMON_THREADS];
168 * NOTE: naming convention for macros:
170 * - SLAP_SOCK_* and SLAP_EVENT_* for public interface that deals
171 * with file descriptors and events respectively
173 * - SLAP_<type>_* for private interface; type by now is one of
174 * EPOLL, DEVPOLL, SELECT
176 * private interface should not be used in the code.
178 #if defined(HAVE_EPOLL)
179 /***************************************
180 * Use epoll infrastructure - epoll(4) *
181 ***************************************/
182 # define SLAP_EVENT_FNAME "epoll"
183 # define SLAP_EVENTS_ARE_INDEXED 0
184 # define SLAP_EPOLL_SOCK_IX(t,s) (slap_daemon[t].sd_index[(s)])
185 # define SLAP_EPOLL_SOCK_EP(t,s) (slap_daemon[t].sd_epolls[SLAP_EPOLL_SOCK_IX(t,s)])
186 # define SLAP_EPOLL_SOCK_EV(t,s) (SLAP_EPOLL_SOCK_EP(t,s).events)
187 # define SLAP_SOCK_IS_ACTIVE(t,s) (SLAP_EPOLL_SOCK_IX(t,s) != -1)
188 # define SLAP_SOCK_NOT_ACTIVE(t,s) (SLAP_EPOLL_SOCK_IX(t,s) == -1)
189 # define SLAP_EPOLL_SOCK_IS_SET(t,s, mode) (SLAP_EPOLL_SOCK_EV(t,s) & (mode))
191 # define SLAP_SOCK_IS_READ(t,s) SLAP_EPOLL_SOCK_IS_SET(t,(s), EPOLLIN)
192 # define SLAP_SOCK_IS_WRITE(t,s) SLAP_EPOLL_SOCK_IS_SET(t,(s), EPOLLOUT)
194 # define SLAP_EPOLL_SOCK_SET(t,s, mode) do { \
195 if ( (SLAP_EPOLL_SOCK_EV(t,s) & (mode)) != (mode) ) { \
196 SLAP_EPOLL_SOCK_EV(t,s) |= (mode); \
197 epoll_ctl( slap_daemon[t].sd_epfd, EPOLL_CTL_MOD, (s), \
198 &SLAP_EPOLL_SOCK_EP(t,s) ); \
202 # define SLAP_EPOLL_SOCK_CLR(t,s, mode) do { \
203 if ( (SLAP_EPOLL_SOCK_EV(t,s) & (mode)) ) { \
204 SLAP_EPOLL_SOCK_EV(t,s) &= ~(mode); \
205 epoll_ctl( slap_daemon[t].sd_epfd, EPOLL_CTL_MOD, s, \
206 &SLAP_EPOLL_SOCK_EP(t,s) ); \
210 # define SLAP_SOCK_SET_READ(t,s) SLAP_EPOLL_SOCK_SET(t,s, EPOLLIN)
211 # define SLAP_SOCK_SET_WRITE(t,s) SLAP_EPOLL_SOCK_SET(t,s, EPOLLOUT)
213 # define SLAP_SOCK_CLR_READ(t,s) SLAP_EPOLL_SOCK_CLR(t,(s), EPOLLIN)
214 # define SLAP_SOCK_CLR_WRITE(t,s) SLAP_EPOLL_SOCK_CLR(t,(s), EPOLLOUT)
216 # define SLAP_SOCK_SET_SUSPEND(t,s) \
217 ( slap_daemon[t].sd_suspend[SLAP_EPOLL_SOCK_IX(t,s)] = 1 )
218 # define SLAP_SOCK_CLR_SUSPEND(t,s) \
219 ( slap_daemon[t].sd_suspend[SLAP_EPOLL_SOCK_IX(t,s)] = 0 )
220 # define SLAP_SOCK_IS_SUSPEND(t,s) \
221 ( slap_daemon[t].sd_suspend[SLAP_EPOLL_SOCK_IX(t,s)] == 1 )
223 # define SLAP_EPOLL_EVENT_CLR(i, mode) (revents[(i)].events &= ~(mode))
225 # define SLAP_EVENT_MAX(t) slap_daemon[t].sd_nfds
227 /* If a Listener address is provided, store that as the epoll data.
228 * Otherwise, store the address of this socket's slot in the
229 * index array. If we can't do this add, the system is out of
230 * resources and we need to shutdown.
232 # define SLAP_SOCK_ADD(t, s, l) do { \
234 SLAP_EPOLL_SOCK_IX(t,(s)) = slap_daemon[t].sd_nfds; \
235 SLAP_EPOLL_SOCK_EP(t,(s)).data.ptr = (l) ? (l) : (void *)(&SLAP_EPOLL_SOCK_IX(t,s)); \
236 SLAP_EPOLL_SOCK_EV(t,(s)) = EPOLLIN; \
237 rc = epoll_ctl(slap_daemon[t].sd_epfd, EPOLL_CTL_ADD, \
238 (s), &SLAP_EPOLL_SOCK_EP(t,(s))); \
240 slap_daemon[t].sd_nfds++; \
242 Debug( LDAP_DEBUG_ANY, \
243 "daemon: epoll_ctl(ADD,fd=%d) failed, errno=%d, shutting down\n", \
245 slapd_shutdown = 2; \
249 # define SLAP_EPOLL_EV_LISTENER(t,ptr) \
250 (((int *)(ptr) >= slap_daemon[t].sd_index && \
251 (int *)(ptr) <= &slap_daemon[t].sd_index[dtblsize]) ? 0 : 1 )
253 # define SLAP_EPOLL_EV_PTRFD(t,ptr) (SLAP_EPOLL_EV_LISTENER(t,ptr) ? \
254 ((Listener *)ptr)->sl_sd : \
255 (ber_socket_t) ((int *)(ptr) - slap_daemon[t].sd_index))
257 # define SLAP_SOCK_DEL(t,s) do { \
258 int fd, rc, index = SLAP_EPOLL_SOCK_IX(t,(s)); \
259 if ( index < 0 ) break; \
260 rc = epoll_ctl(slap_daemon[t].sd_epfd, EPOLL_CTL_DEL, \
261 (s), &SLAP_EPOLL_SOCK_EP(t,(s))); \
262 slap_daemon[t].sd_epolls[index] = \
263 slap_daemon[t].sd_epolls[slap_daemon[t].sd_nfds-1]; \
264 fd = SLAP_EPOLL_EV_PTRFD(t,slap_daemon[t].sd_epolls[index].data.ptr); \
265 slap_daemon[t].sd_index[fd] = index; \
266 slap_daemon[t].sd_index[(s)] = -1; \
267 slap_daemon[t].sd_nfds--; \
270 # define SLAP_EVENT_CLR_READ(i) SLAP_EPOLL_EVENT_CLR((i), EPOLLIN)
271 # define SLAP_EVENT_CLR_WRITE(i) SLAP_EPOLL_EVENT_CLR((i), EPOLLOUT)
273 # define SLAP_EPOLL_EVENT_CHK(i, mode) (revents[(i)].events & mode)
275 # define SLAP_EVENT_IS_READ(i) SLAP_EPOLL_EVENT_CHK((i), EPOLLIN)
276 # define SLAP_EVENT_IS_WRITE(i) SLAP_EPOLL_EVENT_CHK((i), EPOLLOUT)
277 # define SLAP_EVENT_IS_LISTENER(t,i) SLAP_EPOLL_EV_LISTENER(t,revents[(i)].data.ptr)
278 # define SLAP_EVENT_LISTENER(t,i) ((Listener *)(revents[(i)].data.ptr))
280 # define SLAP_EVENT_FD(t,i) SLAP_EPOLL_EV_PTRFD(t,revents[(i)].data.ptr)
282 # define SLAP_SOCK_INIT(t) do { \
284 slap_daemon[t].sd_epolls = ch_calloc(1, \
285 ( sizeof(struct epoll_event) * 2 \
286 + sizeof(int) ) * dtblsize * 2); \
287 slap_daemon[t].sd_index = (int *)&slap_daemon[t].sd_epolls[ 2 * dtblsize ]; \
288 slap_daemon[t].sd_epfd = epoll_create( dtblsize / slapd_daemon_threads ); \
289 for ( j = 0; j < dtblsize; j++ ) slap_daemon[t].sd_index[j] = -1; \
292 # define SLAP_SOCK_DESTROY(t) do { \
293 if ( slap_daemon[t].sd_epolls != NULL ) { \
294 ch_free( slap_daemon[t].sd_epolls ); \
295 slap_daemon[t].sd_epolls = NULL; \
296 slap_daemon[t].sd_index = NULL; \
297 close( slap_daemon[t].sd_epfd ); \
301 # define SLAP_EVENT_DECL struct epoll_event *revents
303 # define SLAP_EVENT_INIT(t) do { \
304 revents = slap_daemon[t].sd_epolls + dtblsize; \
307 # define SLAP_EVENT_WAIT(t, tvp, nsp) do { \
308 *(nsp) = epoll_wait( slap_daemon[t].sd_epfd, revents, \
309 dtblsize, (tvp) ? (tvp)->tv_sec * 1000 : -1 ); \
312 #elif defined(SLAP_X_DEVPOLL) && defined(HAVE_DEVPOLL)
314 /*************************************************************
315 * Use Solaris' (>= 2.7) /dev/poll infrastructure - poll(7d) *
316 *************************************************************/
317 # define SLAP_EVENT_FNAME "/dev/poll"
318 # define SLAP_EVENTS_ARE_INDEXED 0
320 * - sd_index is used much like with epoll()
321 * - sd_l is maintained as an array containing the address
322 * of the listener; the index is the fd itself
323 * - sd_pollfd is used to keep track of what data has been
324 * registered in /dev/poll
326 # define SLAP_DEVPOLL_SOCK_IX(t,s) (slap_daemon[t].sd_index[(s)])
327 # define SLAP_DEVPOLL_SOCK_LX(t,s) (slap_daemon[t].sd_l[(s)])
328 # define SLAP_DEVPOLL_SOCK_EP(t,s) (slap_daemon[t].sd_pollfd[SLAP_DEVPOLL_SOCK_IX(t,(s))])
329 # define SLAP_DEVPOLL_SOCK_FD(t,s) (SLAP_DEVPOLL_SOCK_EP(t,(s)).fd)
330 # define SLAP_DEVPOLL_SOCK_EV(t,s) (SLAP_DEVPOLL_SOCK_EP(t,(s)).events)
331 # define SLAP_SOCK_IS_ACTIVE(t,s) (SLAP_DEVPOLL_SOCK_IX(t,(s)) != -1)
332 # define SLAP_SOCK_NOT_ACTIVE(t,s) (SLAP_DEVPOLL_SOCK_IX(t,(s)) == -1)
333 # define SLAP_SOCK_IS_SET(t,s, mode) (SLAP_DEVPOLL_SOCK_EV(t,(s)) & (mode))
335 # define SLAP_SOCK_IS_READ(t,s) SLAP_SOCK_IS_SET(t,(s), POLLIN)
336 # define SLAP_SOCK_IS_WRITE(t,s) SLAP_SOCK_IS_SET(t,(s), POLLOUT)
338 /* as far as I understand, any time we need to communicate with the kernel
339 * about the number and/or properties of a file descriptor we need it to
340 * wait for, we have to rewrite the whole set */
341 # define SLAP_DEVPOLL_WRITE_POLLFD(t,s, pfd, n, what, shdn) do { \
343 size_t size = (n) * sizeof( struct pollfd ); \
344 /* FIXME: use pwrite? */ \
345 rc = write( slap_daemon[t].sd_dpfd, (pfd), size ); \
346 if ( rc != size ) { \
347 Debug( LDAP_DEBUG_ANY, "daemon: " SLAP_EVENT_FNAME ": " \
348 "%s fd=%d failed errno=%d\n", \
349 (what), (s), errno ); \
351 slapd_shutdown = 2; \
356 # define SLAP_DEVPOLL_SOCK_SET(t,s, mode) do { \
357 Debug( LDAP_DEBUG_CONNS, "SLAP_SOCK_SET_%s(%d)=%d\n", \
358 (mode) == POLLIN ? "READ" : "WRITE", (s), \
359 ( (SLAP_DEVPOLL_SOCK_EV(t,(s)) & (mode)) != (mode) ) ); \
360 if ( (SLAP_DEVPOLL_SOCK_EV(t,(s)) & (mode)) != (mode) ) { \
362 SLAP_DEVPOLL_SOCK_EV(t,(s)) |= (mode); \
363 pfd.fd = SLAP_DEVPOLL_SOCK_FD(t,(s)); \
364 pfd.events = /* (mode) */ SLAP_DEVPOLL_SOCK_EV(t,(s)); \
365 SLAP_DEVPOLL_WRITE_POLLFD(t,(s), &pfd, 1, "SET", 0); \
369 # define SLAP_DEVPOLL_SOCK_CLR(t,s, mode) do { \
370 Debug( LDAP_DEBUG_CONNS, "SLAP_SOCK_CLR_%s(%d)=%d\n", \
371 (mode) == POLLIN ? "READ" : "WRITE", (s), \
372 ( (SLAP_DEVPOLL_SOCK_EV(t,(s)) & (mode)) == (mode) ) ); \
373 if ((SLAP_DEVPOLL_SOCK_EV(t,(s)) & (mode)) == (mode) ) { \
374 struct pollfd pfd[2]; \
375 SLAP_DEVPOLL_SOCK_EV(t,(s)) &= ~(mode); \
376 pfd[0].fd = SLAP_DEVPOLL_SOCK_FD(t,(s)); \
377 pfd[0].events = POLLREMOVE; \
378 pfd[1] = SLAP_DEVPOLL_SOCK_EP(t,(s)); \
379 SLAP_DEVPOLL_WRITE_POLLFD(t,(s), &pfd[0], 2, "CLR", 0); \
383 # define SLAP_SOCK_SET_READ(t,s) SLAP_DEVPOLL_SOCK_SET(t,s, POLLIN)
384 # define SLAP_SOCK_SET_WRITE(t,s) SLAP_DEVPOLL_SOCK_SET(t,s, POLLOUT)
386 # define SLAP_SOCK_CLR_READ(t,s) SLAP_DEVPOLL_SOCK_CLR(t,(s), POLLIN)
387 # define SLAP_SOCK_CLR_WRITE(t,s) SLAP_DEVPOLL_SOCK_CLR(t,(s), POLLOUT)
389 # define SLAP_SOCK_SET_SUSPEND(t,s) \
390 ( slap_daemon[t].sd_suspend[SLAP_DEVPOLL_SOCK_IX(t,(s))] = 1 )
391 # define SLAP_SOCK_CLR_SUSPEND(t,s) \
392 ( slap_daemon[t].sd_suspend[SLAP_DEVPOLL_SOCK_IX(t,(s))] = 0 )
393 # define SLAP_SOCK_IS_SUSPEND(t,s) \
394 ( slap_daemon[t].sd_suspend[SLAP_DEVPOLL_SOCK_IX(t,(s))] == 1 )
396 # define SLAP_DEVPOLL_EVENT_CLR(i, mode) (revents[(i)].events &= ~(mode))
398 # define SLAP_EVENT_MAX(t) slap_daemon[t].sd_nfds
400 /* If a Listener address is provided, store that in the sd_l array.
401 * If we can't do this add, the system is out of resources and we
404 # define SLAP_SOCK_ADD(t, s, l) do { \
405 Debug( LDAP_DEBUG_CONNS, "SLAP_SOCK_ADD(%d, %p)\n", (s), (l), 0 ); \
406 SLAP_DEVPOLL_SOCK_IX(t,(s)) = slap_daemon[t].sd_nfds; \
407 SLAP_DEVPOLL_SOCK_LX(t,(s)) = (l); \
408 SLAP_DEVPOLL_SOCK_FD(t,(s)) = (s); \
409 SLAP_DEVPOLL_SOCK_EV(t,(s)) = POLLIN; \
410 SLAP_DEVPOLL_WRITE_POLLFD(t,(s), &SLAP_DEVPOLL_SOCK_EP((s)), 1, "ADD", 1); \
411 slap_daemon[t].sd_nfds++; \
414 # define SLAP_DEVPOLL_EV_LISTENER(ptr) ((ptr) != NULL)
416 # define SLAP_SOCK_DEL(t,s) do { \
417 int fd, index = SLAP_DEVPOLL_SOCK_IX(t,(s)); \
418 Debug( LDAP_DEBUG_CONNS, "SLAP_SOCK_DEL(%d)\n", (s), 0, 0 ); \
419 if ( index < 0 ) break; \
420 if ( index < slap_daemon[t].sd_nfds - 1 ) { \
421 struct pollfd pfd = slap_daemon[t].sd_pollfd[index]; \
422 fd = slap_daemon[t].sd_pollfd[slap_daemon[t].sd_nfds - 1].fd; \
423 slap_daemon[t].sd_pollfd[index] = slap_daemon[t].sd_pollfd[slap_daemon[t].sd_nfds - 1]; \
424 slap_daemon[t].sd_pollfd[slap_daemon[t].sd_nfds - 1] = pfd; \
425 slap_daemon[t].sd_index[fd] = index; \
427 slap_daemon[t].sd_index[(s)] = -1; \
428 slap_daemon[t].sd_pollfd[slap_daemon[t].sd_nfds - 1].events = POLLREMOVE; \
429 SLAP_DEVPOLL_WRITE_POLLFD(t,(s), &slap_daemon[t].sd_pollfd[slap_daemon[t].sd_nfds - 1], 1, "DEL", 0); \
430 slap_daemon[t].sd_pollfd[slap_daemon[t].sd_nfds - 1].events = 0; \
431 slap_daemon[t].sd_nfds--; \
434 # define SLAP_EVENT_CLR_READ(i) SLAP_DEVPOLL_EVENT_CLR((i), POLLIN)
435 # define SLAP_EVENT_CLR_WRITE(i) SLAP_DEVPOLL_EVENT_CLR((i), POLLOUT)
437 # define SLAP_DEVPOLL_EVENT_CHK(i, mode) (revents[(i)].events & (mode))
439 # define SLAP_EVENT_FD(t,i) (revents[(i)].fd)
441 # define SLAP_EVENT_IS_READ(i) SLAP_DEVPOLL_EVENT_CHK((i), POLLIN)
442 # define SLAP_EVENT_IS_WRITE(i) SLAP_DEVPOLL_EVENT_CHK((i), POLLOUT)
443 # define SLAP_EVENT_IS_LISTENER(t,i) SLAP_DEVPOLL_EV_LISTENER(SLAP_DEVPOLL_SOCK_LX(SLAP_EVENT_FD(t,(i))))
444 # define SLAP_EVENT_LISTENER(t,i) SLAP_DEVPOLL_SOCK_LX(SLAP_EVENT_FD(t,(i)))
446 # define SLAP_SOCK_INIT(t) do { \
447 slap_daemon[t].sd_pollfd = ch_calloc( 1, \
448 ( sizeof(struct pollfd) * 2 \
450 + sizeof( Listener * ) ) * dtblsize ); \
451 slap_daemon[t].sd_index = (int *)&slap_daemon[t].sd_pollfd[ 2 * dtblsize ]; \
452 slap_daemon[t].sd_l = (Listener **)&slap_daemon[t].sd_index[ dtblsize ]; \
453 slap_daemon[t].sd_dpfd = open( SLAP_EVENT_FNAME, O_RDWR ); \
454 if ( slap_daemon[t].sd_dpfd == -1 ) { \
455 Debug( LDAP_DEBUG_ANY, "daemon: " SLAP_EVENT_FNAME ": " \
456 "open(\"" SLAP_EVENT_FNAME "\") failed errno=%d\n", \
461 for ( i = 0; i < dtblsize; i++ ) { \
462 slap_daemon[t].sd_pollfd[i].fd = -1; \
463 slap_daemon[t].sd_index[i] = -1; \
467 # define SLAP_SOCK_DESTROY(t) do { \
468 if ( slap_daemon[t].sd_pollfd != NULL ) { \
469 ch_free( slap_daemon[t].sd_pollfd ); \
470 slap_daemon[t].sd_pollfd = NULL; \
471 slap_daemon[t].sd_index = NULL; \
472 slap_daemon[t].sd_l = NULL; \
473 close( slap_daemon[t].sd_dpfd ); \
477 # define SLAP_EVENT_DECL struct pollfd *revents
479 # define SLAP_EVENT_INIT(t) do { \
480 revents = &slap_daemon[t].sd_pollfd[ dtblsize ]; \
483 # define SLAP_EVENT_WAIT(t, tvp, nsp) do { \
484 struct dvpoll sd_dvpoll; \
485 sd_dvpoll.dp_timeout = (tvp) ? (tvp)->tv_sec * 1000 : -1; \
486 sd_dvpoll.dp_nfds = dtblsize; \
487 sd_dvpoll.dp_fds = revents; \
488 *(nsp) = ioctl( slap_daemon[t].sd_dpfd, DP_POLL, &sd_dvpoll ); \
491 #else /* ! epoll && ! /dev/poll */
493 # define SLAP_EVENT_FNAME "WSselect"
494 /* Winsock provides a "select" function but its fd_sets are
495 * actually arrays of sockets. Since these sockets are handles
496 * and not a contiguous range of small integers, we manage our
497 * own "fd" table of socket handles and use their indices as
500 * All of our listener/connection structures use fds; the actual
501 * I/O functions use sockets. The SLAP_FD2SOCK macro in proto-slap.h
502 * handles the mapping.
504 * Despite the mapping overhead, this is about 45% more efficient
505 * than just using Winsock's select and FD_ISSET directly.
507 * Unfortunately Winsock's select implementation doesn't scale well
508 * as the number of connections increases. This probably needs to be
509 * rewritten to use the Winsock overlapped/asynchronous I/O functions.
511 # define SLAP_EVENTS_ARE_INDEXED 1
512 # define SLAP_EVENT_DECL fd_set readfds, writefds; char *rflags
513 # define SLAP_EVENT_INIT(t) do { \
515 FD_ZERO( &readfds ); \
516 FD_ZERO( &writefds ); \
517 rflags = slap_daemon[t].sd_rflags; \
518 memset( rflags, 0, slap_daemon[t].sd_nfds ); \
519 for ( i=0; i<slap_daemon[t].sd_nfds; i++ ) { \
520 if ( slap_daemon[t].sd_flags[i] & SD_READ ) \
521 FD_SET( slapd_ws_sockets[i], &readfds );\
522 if ( slap_daemon[t].sd_flags[i] & SD_WRITE ) \
523 FD_SET( slapd_ws_sockets[i], &writefds ); \
526 # define SLAP_EVENT_MAX(t) slap_daemon[t].sd_nfds
528 # define SLAP_EVENT_WAIT(t, tvp, nsp) do { \
530 *(nsp) = select( SLAP_EVENT_MAX(t), &readfds, \
531 nwriters > 0 ? &writefds : NULL, NULL, (tvp) ); \
532 for ( i=0; i<readfds.fd_count; i++) { \
533 int fd = slapd_sock2fd(readfds.fd_array[i]); \
535 slap_daemon[t].sd_rflags[fd] = SD_READ; \
536 if ( fd >= *(nsp)) *(nsp) = fd+1; \
539 for ( i=0; i<writefds.fd_count; i++) { \
540 int fd = slapd_sock2fd(writefds.fd_array[i]); \
542 slap_daemon[t].sd_rflags[fd] = SD_WRITE; \
543 if ( fd >= *(nsp)) *(nsp) = fd+1; \
548 # define SLAP_EVENT_IS_READ(fd) (rflags[fd] & SD_READ)
549 # define SLAP_EVENT_IS_WRITE(fd) (rflags[fd] & SD_WRITE)
551 # define SLAP_EVENT_CLR_READ(fd) rflags[fd] &= ~SD_READ
552 # define SLAP_EVENT_CLR_WRITE(fd) rflags[fd] &= ~SD_WRITE
554 # define SLAP_SOCK_INIT(t) do { \
556 ldap_pvt_thread_mutex_init( &slapd_ws_mutex ); \
557 slapd_ws_sockets = ch_malloc( dtblsize * ( sizeof(SOCKET) + 2)); \
558 memset( slapd_ws_sockets, -1, dtblsize * sizeof(SOCKET) ); \
560 slap_daemon[t].sd_flags = (char *)(slapd_ws_sockets + dtblsize); \
561 slap_daemon[t].sd_rflags = slap_daemon[t].sd_flags + dtblsize; \
562 memset( slap_daemon[t].sd_flags, 0, dtblsize ); \
563 slapd_ws_sockets[t*2] = wake_sds[t][0]; \
564 slapd_ws_sockets[t*2+1] = wake_sds[t][1]; \
565 wake_sds[t][0] = t*2; \
566 wake_sds[t][1] = t*2+1; \
567 slap_daemon[t].sd_nfds = t*2 + 2; \
570 # define SLAP_SOCK_DESTROY(t) do { \
571 ch_free( slapd_ws_sockets ); slapd_ws_sockets = NULL; \
572 slap_daemon[t].sd_flags = NULL; \
573 slap_daemon[t].sd_rflags = NULL; \
574 ldap_pvt_thread_mutex_destroy( &slapd_ws_mutex ); \
577 # define SLAP_SOCK_IS_ACTIVE(t,fd) ( slap_daemon[t].sd_flags[fd] & SD_ACTIVE )
578 # define SLAP_SOCK_IS_READ(t,fd) ( slap_daemon[t].sd_flags[fd] & SD_READ )
579 # define SLAP_SOCK_IS_WRITE(t,fd) ( slap_daemon[t].sd_flags[fd] & SD_WRITE )
580 # define SLAP_SOCK_NOT_ACTIVE(t,fd) (!slap_daemon[t].sd_flags[fd])
582 # define SLAP_SOCK_SET_READ(t,fd) ( slap_daemon[t].sd_flags[fd] |= SD_READ )
583 # define SLAP_SOCK_SET_WRITE(t,fd) ( slap_daemon[t].sd_flags[fd] |= SD_WRITE )
585 # define SLAP_SELECT_ADDTEST(t,s) do { \
586 if ((s) >= slap_daemon[t].sd_nfds) slap_daemon[t].sd_nfds = (s)+1; \
589 # define SLAP_SOCK_CLR_READ(t,fd) ( slap_daemon[t].sd_flags[fd] &= ~SD_READ )
590 # define SLAP_SOCK_CLR_WRITE(t,fd) ( slap_daemon[t].sd_flags[fd] &= ~SD_WRITE )
592 # define SLAP_SOCK_ADD(t,s, l) do { \
593 SLAP_SELECT_ADDTEST(t,(s)); \
594 slap_daemon[t].sd_flags[s] = SD_ACTIVE|SD_READ; \
597 # define SLAP_SOCK_DEL(t,s) do { \
598 slap_daemon[t].sd_flags[s] = 0; \
599 slapd_sockdel( s ); \
602 # else /* !HAVE_WINSOCK */
604 /**************************************
605 * Use select system call - select(2) *
606 **************************************/
607 # define SLAP_EVENT_FNAME "select"
609 # define SLAP_EVENTS_ARE_INDEXED 1
610 # define SLAP_EVENT_DECL fd_set readfds, writefds
612 # define SLAP_EVENT_INIT(t) do { \
613 AC_MEMCPY( &readfds, &slap_daemon[t].sd_readers, sizeof(fd_set) ); \
615 AC_MEMCPY( &writefds, &slap_daemon[t].sd_writers, sizeof(fd_set) ); \
617 FD_ZERO( &writefds ); \
622 # define SLAP_SELECT_CHK_SETSIZE do { \
623 if (dtblsize > FD_SETSIZE) dtblsize = FD_SETSIZE; \
625 # else /* ! FD_SETSIZE */
626 # define SLAP_SELECT_CHK_SETSIZE do { ; } while (0)
627 # endif /* ! FD_SETSIZE */
629 # define SLAP_SOCK_INIT(t) do { \
630 SLAP_SELECT_CHK_SETSIZE; \
631 FD_ZERO(&slap_daemon[t].sd_actives); \
632 FD_ZERO(&slap_daemon[t].sd_readers); \
633 FD_ZERO(&slap_daemon[t].sd_writers); \
636 # define SLAP_SOCK_DESTROY(t)
638 # define SLAP_SOCK_IS_ACTIVE(t,fd) FD_ISSET((fd), &slap_daemon[t].sd_actives)
639 # define SLAP_SOCK_IS_READ(t,fd) FD_ISSET((fd), &slap_daemon[t].sd_readers)
640 # define SLAP_SOCK_IS_WRITE(t,fd) FD_ISSET((fd), &slap_daemon[t].sd_writers)
642 # define SLAP_SOCK_NOT_ACTIVE(t,fd) (!SLAP_SOCK_IS_ACTIVE(t,fd) && \
643 !SLAP_SOCK_IS_READ(t,fd) && !SLAP_SOCK_IS_WRITE(t,fd))
645 # define SLAP_SOCK_SET_READ(t,fd) FD_SET((fd), &slap_daemon[t].sd_readers)
646 # define SLAP_SOCK_SET_WRITE(t,fd) FD_SET((fd), &slap_daemon[t].sd_writers)
648 # define SLAP_EVENT_MAX(t) slap_daemon[t].sd_nfds
649 # define SLAP_SELECT_ADDTEST(t,s) do { \
650 if ((s) >= slap_daemon[t].sd_nfds) slap_daemon[t].sd_nfds = (s)+1; \
653 # define SLAP_SOCK_CLR_READ(t,fd) FD_CLR((fd), &slap_daemon[t].sd_readers)
654 # define SLAP_SOCK_CLR_WRITE(t,fd) FD_CLR((fd), &slap_daemon[t].sd_writers)
656 # define SLAP_SOCK_ADD(t,s, l) do { \
657 SLAP_SELECT_ADDTEST(t,(s)); \
658 FD_SET((s), &slap_daemon[t].sd_actives); \
659 FD_SET((s), &slap_daemon[t].sd_readers); \
662 # define SLAP_SOCK_DEL(t,s) do { \
663 FD_CLR((s), &slap_daemon[t].sd_actives); \
664 FD_CLR((s), &slap_daemon[t].sd_readers); \
665 FD_CLR((s), &slap_daemon[t].sd_writers); \
668 # define SLAP_EVENT_IS_READ(fd) FD_ISSET((fd), &readfds)
669 # define SLAP_EVENT_IS_WRITE(fd) FD_ISSET((fd), &writefds)
671 # define SLAP_EVENT_CLR_READ(fd) FD_CLR((fd), &readfds)
672 # define SLAP_EVENT_CLR_WRITE(fd) FD_CLR((fd), &writefds)
674 # define SLAP_EVENT_WAIT(t, tvp, nsp) do { \
675 *(nsp) = select( SLAP_EVENT_MAX(t), &readfds, \
676 nwriters > 0 ? &writefds : NULL, NULL, (tvp) ); \
678 # endif /* !HAVE_WINSOCK */
679 #endif /* ! epoll && ! /dev/poll */
683 * SLP related functions
687 #define LDAP_SRVTYPE_PREFIX "service:ldap://"
688 #define LDAPS_SRVTYPE_PREFIX "service:ldaps://"
689 static char** slapd_srvurls = NULL;
690 static SLPHandle slapd_hslp = 0;
691 int slapd_register_slp = 0;
692 const char *slapd_slp_attrs = NULL;
694 static SLPError slapd_slp_cookie;
697 slapd_slp_init( const char* urls )
702 slapd_srvurls = ldap_str2charray( urls, " " );
704 if ( slapd_srvurls == NULL ) return;
706 /* find and expand INADDR_ANY URLs */
707 for ( i = 0; slapd_srvurls[i] != NULL; i++ ) {
708 if ( strcmp( slapd_srvurls[i], "ldap:///" ) == 0 ) {
709 slapd_srvurls[i] = (char *) ch_realloc( slapd_srvurls[i],
710 global_host_bv.bv_len +
711 sizeof( LDAP_SRVTYPE_PREFIX ) );
712 strcpy( lutil_strcopy(slapd_srvurls[i],
713 LDAP_SRVTYPE_PREFIX ), global_host_bv.bv_val );
714 } else if ( strcmp( slapd_srvurls[i], "ldaps:///" ) == 0 ) {
715 slapd_srvurls[i] = (char *) ch_realloc( slapd_srvurls[i],
716 global_host_bv.bv_len +
717 sizeof( LDAPS_SRVTYPE_PREFIX ) );
718 strcpy( lutil_strcopy(slapd_srvurls[i],
719 LDAPS_SRVTYPE_PREFIX ), global_host_bv.bv_val );
723 /* open the SLP handle */
724 err = SLPOpen( "en", 0, &slapd_hslp );
726 if ( err != SLP_OK ) {
727 Debug( LDAP_DEBUG_CONNS, "daemon: SLPOpen() failed with %ld\n",
733 slapd_slp_deinit( void )
735 if ( slapd_srvurls == NULL ) return;
737 ldap_charray_free( slapd_srvurls );
738 slapd_srvurls = NULL;
740 /* close the SLP handle */
741 SLPClose( slapd_hslp );
750 /* return the error code in the cookie */
751 *(SLPError*)cookie = errcode;
760 if ( slapd_srvurls == NULL ) return;
762 for ( i = 0; slapd_srvurls[i] != NULL; i++ ) {
763 if ( strncmp( slapd_srvurls[i], LDAP_SRVTYPE_PREFIX,
764 sizeof( LDAP_SRVTYPE_PREFIX ) - 1 ) == 0 ||
765 strncmp( slapd_srvurls[i], LDAPS_SRVTYPE_PREFIX,
766 sizeof( LDAPS_SRVTYPE_PREFIX ) - 1 ) == 0 )
768 err = SLPReg( slapd_hslp,
770 SLP_LIFETIME_MAXIMUM,
772 (slapd_slp_attrs) ? slapd_slp_attrs : "",
777 if ( err != SLP_OK || slapd_slp_cookie != SLP_OK ) {
778 Debug( LDAP_DEBUG_CONNS,
779 "daemon: SLPReg(%s) failed with %ld, cookie = %ld\n",
780 slapd_srvurls[i], (long)err, (long)slapd_slp_cookie );
787 slapd_slp_dereg( void )
792 if ( slapd_srvurls == NULL ) return;
794 for ( i = 0; slapd_srvurls[i] != NULL; i++ ) {
795 err = SLPDereg( slapd_hslp,
800 if ( err != SLP_OK || slapd_slp_cookie != SLP_OK ) {
801 Debug( LDAP_DEBUG_CONNS,
802 "daemon: SLPDereg(%s) failed with %ld, cookie = %ld\n",
803 slapd_srvurls[i], (long)err, (long)slapd_slp_cookie );
807 #endif /* HAVE_SLP */
810 /* Manage the descriptor to socket table */
812 slapd_socknew( ber_socket_t s )
815 ldap_pvt_thread_mutex_lock( &slapd_ws_mutex );
816 for ( i = 0; i < dtblsize && slapd_ws_sockets[i] != INVALID_SOCKET; i++ );
817 if ( i == dtblsize ) {
818 WSASetLastError( WSAEMFILE );
820 slapd_ws_sockets[i] = s;
822 ldap_pvt_thread_mutex_unlock( &slapd_ws_mutex );
827 slapd_sockdel( ber_socket_t s )
829 ldap_pvt_thread_mutex_lock( &slapd_ws_mutex );
830 slapd_ws_sockets[s] = INVALID_SOCKET;
831 ldap_pvt_thread_mutex_unlock( &slapd_ws_mutex );
835 slapd_sock2fd( ber_socket_t s )
838 for ( i=0; i<dtblsize && slapd_ws_sockets[i] != s; i++);
846 * Add a descriptor to daemon control
848 * If isactive, the descriptor is a live server session and is subject
849 * to idletimeout control. Otherwise, the descriptor is a passive
850 * listener or an outbound client session, and not subject to
851 * idletimeout. The underlying event handler may record the Listener
852 * argument to differentiate Listener's from real sessions.
855 slapd_add( ber_socket_t s, int isactive, Listener *sl, int id )
859 ldap_pvt_thread_mutex_lock( &slap_daemon[id].sd_mutex );
861 assert( SLAP_SOCK_NOT_ACTIVE(id, s) );
863 if ( isactive ) slap_daemon[id].sd_nactives++;
865 SLAP_SOCK_ADD(id, s, sl);
867 Debug( LDAP_DEBUG_CONNS, "daemon: added %ldr%s listener=%p\n",
868 (long) s, isactive ? " (active)" : "", (void *)sl );
870 ldap_pvt_thread_mutex_unlock( &slap_daemon[id].sd_mutex );
876 * Remove the descriptor from daemon control
888 int id = DAEMON_ID(s);
891 ldap_pvt_thread_mutex_lock( &slap_daemon[id].sd_mutex );
893 assert( SLAP_SOCK_IS_ACTIVE( id, s ));
895 if ( wasactive ) slap_daemon[id].sd_nactives--;
897 waswriter = SLAP_SOCK_IS_WRITE(id, s);
898 wasreader = SLAP_SOCK_IS_READ(id, s);
900 Debug( LDAP_DEBUG_CONNS, "daemon: removing %ld%s%s\n",
902 wasreader ? "r" : "",
903 waswriter ? "w" : "" );
905 if ( waswriter ) slap_daemon[id].sd_nwriters--;
907 SLAP_SOCK_DEL(id, s);
910 ber_sockbuf_free(sb);
912 /* If we ran out of file descriptors, we dropped a listener from
913 * the select() loop. Now that we're removing a session from our
914 * control, we can try to resume a dropped listener to use.
916 if ( emfile && listening ) {
918 for ( i = 0; slap_listeners[i] != NULL; i++ ) {
919 Listener *lr = slap_listeners[i];
921 if ( lr->sl_sd == AC_SOCKET_INVALID ) continue;
922 if ( lr->sl_sd == s ) continue;
926 if ( DAEMON_ID(lr->sl_sd) != id )
927 WAKE_LISTENER(DAEMON_ID(lr->sl_sd), wake);
931 /* Walked the entire list without enabling anything; emfile
932 * counter is stale. Reset it.
934 if ( slap_listeners[i] == NULL ) emfile = 0;
936 ldap_pvt_thread_mutex_unlock( &slap_daemon[id].sd_mutex );
937 WAKE_LISTENER(id, wake || slapd_gentle_shutdown == 2);
941 slapd_clr_write( ber_socket_t s, int wake )
943 int id = DAEMON_ID(s);
944 ldap_pvt_thread_mutex_lock( &slap_daemon[id].sd_mutex );
946 if ( SLAP_SOCK_IS_WRITE( id, s )) {
947 assert( SLAP_SOCK_IS_ACTIVE( id, s ));
949 SLAP_SOCK_CLR_WRITE( id, s );
950 slap_daemon[id].sd_nwriters--;
953 ldap_pvt_thread_mutex_unlock( &slap_daemon[id].sd_mutex );
954 WAKE_LISTENER(id,wake);
958 slapd_set_write( ber_socket_t s, int wake )
960 int id = DAEMON_ID(s);
961 ldap_pvt_thread_mutex_lock( &slap_daemon[id].sd_mutex );
963 assert( SLAP_SOCK_IS_ACTIVE( id, s ));
965 if ( !SLAP_SOCK_IS_WRITE( id, s )) {
966 SLAP_SOCK_SET_WRITE( id, s );
967 slap_daemon[id].sd_nwriters++;
970 ldap_pvt_thread_mutex_unlock( &slap_daemon[id].sd_mutex );
971 WAKE_LISTENER(id,wake);
975 slapd_clr_read( ber_socket_t s, int wake )
978 int id = DAEMON_ID(s);
979 ldap_pvt_thread_mutex_lock( &slap_daemon[id].sd_mutex );
981 if ( SLAP_SOCK_IS_ACTIVE( id, s )) {
982 SLAP_SOCK_CLR_READ( id, s );
985 ldap_pvt_thread_mutex_unlock( &slap_daemon[id].sd_mutex );
987 WAKE_LISTENER(id,wake);
992 slapd_set_read( ber_socket_t s, int wake )
995 int id = DAEMON_ID(s);
996 ldap_pvt_thread_mutex_lock( &slap_daemon[id].sd_mutex );
998 if( SLAP_SOCK_IS_ACTIVE( id, s ) && !SLAP_SOCK_IS_READ( id, s )) {
999 SLAP_SOCK_SET_READ( id, s );
1003 ldap_pvt_thread_mutex_unlock( &slap_daemon[id].sd_mutex );
1005 WAKE_LISTENER(id,wake);
1009 slapd_close( ber_socket_t s )
1011 Debug( LDAP_DEBUG_CONNS, "daemon: closing %ld\n",
1013 tcp_close( SLAP_FD2SOCK(s) );
1020 slapd_shutsock( ber_socket_t s )
1022 Debug( LDAP_DEBUG_CONNS, "daemon: shutdown socket %ld\n",
1024 shutdown( SLAP_FD2SOCK(s), 2 );
1028 slap_free_listener_addresses( struct sockaddr **sal )
1030 struct sockaddr **sap;
1031 if (sal == NULL) return;
1032 for (sap = sal; *sap != NULL; sap++) ch_free(*sap);
1036 #if defined(LDAP_PF_LOCAL) || defined(SLAP_X_LISTENER_MOD)
1045 assert( exts != NULL );
1046 assert( perms != NULL );
1047 assert( crit != NULL );
1050 for ( i = 0; exts[ i ]; i++ ) {
1051 char *type = exts[ i ];
1054 if ( type[ 0 ] == '!' ) {
1059 if ( strncasecmp( type, LDAPI_MOD_URLEXT "=",
1060 sizeof(LDAPI_MOD_URLEXT "=") - 1 ) == 0 )
1062 char *value = type + ( sizeof(LDAPI_MOD_URLEXT "=") - 1 );
1066 switch (strlen(value)) {
1068 /* skip leading '0' */
1069 if ( value[ 0 ] != '0' ) return LDAP_OTHER;
1073 for ( j = 0; j < 3; j++) {
1076 v = value[ j ] - '0';
1078 if ( v < 0 || v > 7 ) return LDAP_OTHER;
1085 for ( j = 1; j < 10; j++ ) {
1086 static mode_t m[] = { 0,
1087 S_IRUSR, S_IWUSR, S_IXUSR,
1088 S_IRGRP, S_IWGRP, S_IXGRP,
1089 S_IROTH, S_IWOTH, S_IXOTH
1091 static const char c[] = "-rwxrwxrwx";
1093 if ( value[ j ] == c[ j ] ) {
1096 } else if ( value[ j ] != '-' ) {
1109 return LDAP_SUCCESS;
1115 #endif /* LDAP_PF_LOCAL || SLAP_X_LISTENER_MOD */
1117 /* port = 0 indicates AF_LOCAL */
1119 slap_get_listener_addresses(
1121 unsigned short port,
1122 struct sockaddr ***sal )
1124 struct sockaddr **sap;
1126 #ifdef LDAP_PF_LOCAL
1128 *sal = ch_malloc(2 * sizeof(void *));
1129 if (*sal == NULL) return -1;
1132 *sap = ch_malloc(sizeof(struct sockaddr_un));
1133 if (*sap == NULL) goto errexit;
1137 (sizeof(((struct sockaddr_un *)*sap)->sun_path) - 1) )
1139 Debug( LDAP_DEBUG_ANY,
1140 "daemon: domain socket path (%s) too long in URL",
1145 (void)memset( (void *)*sap, '\0', sizeof(struct sockaddr_un) );
1146 (*sap)->sa_family = AF_LOCAL;
1147 strcpy( ((struct sockaddr_un *)*sap)->sun_path, host );
1149 #endif /* LDAP_PF_LOCAL */
1151 #ifdef HAVE_GETADDRINFO
1152 struct addrinfo hints, *res, *sai;
1156 memset( &hints, '\0', sizeof(hints) );
1157 hints.ai_flags = AI_PASSIVE;
1158 hints.ai_socktype = SOCK_STREAM;
1159 hints.ai_family = slap_inet4or6;
1160 snprintf(serv, sizeof serv, "%d", port);
1162 if ( (err = getaddrinfo(host, serv, &hints, &res)) ) {
1163 Debug( LDAP_DEBUG_ANY, "daemon: getaddrinfo() failed: %s\n",
1164 AC_GAI_STRERROR(err), 0, 0);
1169 for (n=2; (sai = sai->ai_next) != NULL; n++) {
1172 *sal = ch_calloc(n, sizeof(void *));
1173 if (*sal == NULL) return -1;
1178 for ( sai=res; sai; sai=sai->ai_next ) {
1179 if( sai->ai_addr == NULL ) {
1180 Debug( LDAP_DEBUG_ANY, "slap_get_listener_addresses: "
1181 "getaddrinfo ai_addr is NULL?\n", 0, 0, 0 );
1186 switch (sai->ai_family) {
1187 # ifdef LDAP_PF_INET6
1189 *sap = ch_malloc(sizeof(struct sockaddr_in6));
1194 *(struct sockaddr_in6 *)*sap =
1195 *((struct sockaddr_in6 *)sai->ai_addr);
1197 # endif /* LDAP_PF_INET6 */
1199 *sap = ch_malloc(sizeof(struct sockaddr_in));
1204 *(struct sockaddr_in *)*sap =
1205 *((struct sockaddr_in *)sai->ai_addr);
1213 (*sap)->sa_family = sai->ai_family;
1221 #else /* ! HAVE_GETADDRINFO */
1224 struct hostent *he = NULL;
1226 if ( host == NULL ) {
1227 in.s_addr = htonl(INADDR_ANY);
1229 } else if ( !inet_aton( host, &in ) ) {
1230 he = gethostbyname( host );
1232 Debug( LDAP_DEBUG_ANY,
1233 "daemon: invalid host %s", host, 0, 0);
1236 for (n = 0; he->h_addr_list[n]; n++) /* empty */;
1239 *sal = ch_malloc((n+1) * sizeof(void *));
1240 if (*sal == NULL) return -1;
1243 for ( i = 0; i<n; i++ ) {
1244 sap[i] = ch_malloc(sizeof(struct sockaddr_in));
1245 if (*sap == NULL) goto errexit;
1247 (void)memset( (void *)sap[i], '\0', sizeof(struct sockaddr_in) );
1248 sap[i]->sa_family = AF_INET;
1249 ((struct sockaddr_in *)sap[i])->sin_port = htons(port);
1250 AC_MEMCPY( &((struct sockaddr_in *)sap[i])->sin_addr,
1251 he ? (struct in_addr *)he->h_addr_list[i] : &in,
1252 sizeof(struct in_addr) );
1255 #endif /* ! HAVE_GETADDRINFO */
1261 slap_free_listener_addresses(*sal);
1275 unsigned short port;
1276 int err, addrlen = 0;
1277 struct sockaddr **sal, **psal;
1278 int socktype = SOCK_STREAM; /* default to COTS */
1281 #if defined(LDAP_PF_LOCAL) || defined(SLAP_X_LISTENER_MOD)
1286 #endif /* LDAP_PF_LOCAL || SLAP_X_LISTENER_MOD */
1288 rc = ldap_url_parse( url, &lud );
1290 if( rc != LDAP_URL_SUCCESS ) {
1291 Debug( LDAP_DEBUG_ANY,
1292 "daemon: listen URL \"%s\" parse error=%d\n",
1297 l.sl_url.bv_val = NULL;
1302 if( ldap_pvt_url_scheme2tls( lud->lud_scheme ) ) {
1303 Debug( LDAP_DEBUG_ANY, "daemon: TLS not supported (%s)\n",
1305 ldap_free_urldesc( lud );
1309 if(! lud->lud_port ) lud->lud_port = LDAP_PORT;
1311 #else /* HAVE_TLS */
1312 l.sl_is_tls = ldap_pvt_url_scheme2tls( lud->lud_scheme );
1314 if(! lud->lud_port ) {
1315 lud->lud_port = l.sl_is_tls ? LDAPS_PORT : LDAP_PORT;
1317 #endif /* HAVE_TLS */
1319 #ifdef LDAP_TCP_BUFFER
1322 #endif /* LDAP_TCP_BUFFER */
1324 port = (unsigned short) lud->lud_port;
1326 tmp = ldap_pvt_url_scheme2proto(lud->lud_scheme);
1327 if ( tmp == LDAP_PROTO_IPC ) {
1328 #ifdef LDAP_PF_LOCAL
1329 if ( lud->lud_host == NULL || lud->lud_host[0] == '\0' ) {
1330 err = slap_get_listener_addresses(LDAPI_SOCK, 0, &sal);
1332 err = slap_get_listener_addresses(lud->lud_host, 0, &sal);
1334 #else /* ! LDAP_PF_LOCAL */
1336 Debug( LDAP_DEBUG_ANY, "daemon: URL scheme not supported: %s",
1338 ldap_free_urldesc( lud );
1340 #endif /* ! LDAP_PF_LOCAL */
1342 if( lud->lud_host == NULL || lud->lud_host[0] == '\0'
1343 || strcmp(lud->lud_host, "*") == 0 )
1345 err = slap_get_listener_addresses(NULL, port, &sal);
1347 err = slap_get_listener_addresses(lud->lud_host, port, &sal);
1351 #ifdef LDAP_CONNECTIONLESS
1352 l.sl_is_udp = ( tmp == LDAP_PROTO_UDP );
1353 #endif /* LDAP_CONNECTIONLESS */
1355 #if defined(LDAP_PF_LOCAL) || defined(SLAP_X_LISTENER_MOD)
1356 if ( lud->lud_exts ) {
1357 err = get_url_perms( lud->lud_exts, &l.sl_perms, &crit );
1359 l.sl_perms = S_IRWXU | S_IRWXO;
1361 #endif /* LDAP_PF_LOCAL || SLAP_X_LISTENER_MOD */
1363 ldap_free_urldesc( lud );
1365 slap_free_listener_addresses(sal);
1369 /* If we got more than one address returned, we need to make space
1370 * for it in the slap_listeners array.
1372 for ( num=0; sal[num]; num++ ) /* empty */;
1374 *listeners += num-1;
1375 slap_listeners = ch_realloc( slap_listeners,
1376 (*listeners + 1) * sizeof(Listener *) );
1380 while ( *sal != NULL ) {
1382 switch( (*sal)->sa_family ) {
1386 #ifdef LDAP_PF_INET6
1390 #endif /* LDAP_PF_INET6 */
1391 #ifdef LDAP_PF_LOCAL
1395 #endif /* LDAP_PF_LOCAL */
1401 #ifdef LDAP_CONNECTIONLESS
1402 if( l.sl_is_udp ) socktype = SOCK_DGRAM;
1403 #endif /* LDAP_CONNECTIONLESS */
1405 s = socket( (*sal)->sa_family, socktype, 0);
1406 if ( s == AC_SOCKET_INVALID ) {
1407 int err = sock_errno();
1408 Debug( LDAP_DEBUG_ANY,
1409 "daemon: %s socket() failed errno=%d (%s)\n",
1410 af, err, sock_errstr(err) );
1414 l.sl_sd = SLAP_SOCKNEW( s );
1416 if ( l.sl_sd >= dtblsize ) {
1417 Debug( LDAP_DEBUG_ANY,
1418 "daemon: listener descriptor %ld is too great %ld\n",
1419 (long) l.sl_sd, (long) dtblsize, 0 );
1425 #ifdef LDAP_PF_LOCAL
1426 if ( (*sal)->sa_family == AF_LOCAL ) {
1427 unlink( ((struct sockaddr_un *)*sal)->sun_path );
1429 #endif /* LDAP_PF_LOCAL */
1432 /* enable address reuse */
1434 rc = setsockopt( s, SOL_SOCKET, SO_REUSEADDR,
1435 (char *) &tmp, sizeof(tmp) );
1436 if ( rc == AC_SOCKET_ERROR ) {
1437 int err = sock_errno();
1438 Debug( LDAP_DEBUG_ANY, "slapd(%ld): "
1439 "setsockopt(SO_REUSEADDR) failed errno=%d (%s)\n",
1440 (long) l.sl_sd, err, sock_errstr(err) );
1442 #endif /* SO_REUSEADDR */
1445 switch( (*sal)->sa_family ) {
1447 addrlen = sizeof(struct sockaddr_in);
1449 #ifdef LDAP_PF_INET6
1452 /* Try to use IPv6 sockets for IPv6 only */
1454 rc = setsockopt( s , IPPROTO_IPV6, IPV6_V6ONLY,
1455 (char *) &tmp, sizeof(tmp) );
1456 if ( rc == AC_SOCKET_ERROR ) {
1457 int err = sock_errno();
1458 Debug( LDAP_DEBUG_ANY, "slapd(%ld): "
1459 "setsockopt(IPV6_V6ONLY) failed errno=%d (%s)\n",
1460 (long) l.sl_sd, err, sock_errstr(err) );
1462 #endif /* IPV6_V6ONLY */
1463 addrlen = sizeof(struct sockaddr_in6);
1465 #endif /* LDAP_PF_INET6 */
1467 #ifdef LDAP_PF_LOCAL
1472 setsockopt( s, 0, LOCAL_CREDS, &one, sizeof( one ) );
1474 #endif /* LOCAL_CREDS */
1476 addrlen = sizeof( struct sockaddr_un );
1478 #endif /* LDAP_PF_LOCAL */
1481 #ifdef LDAP_PF_LOCAL
1482 /* create socket with all permissions set for those systems
1483 * that honor permissions on sockets (e.g. Linux); typically,
1484 * only write is required. To exploit filesystem permissions,
1485 * place the socket in a directory and use directory's
1486 * permissions. Need write perms to the directory to
1487 * create/unlink the socket; likely need exec perms to access
1488 * the socket (ITS#4709) */
1490 mode_t old_umask = 0;
1492 if ( (*sal)->sa_family == AF_LOCAL ) {
1493 old_umask = umask( 0 );
1495 #endif /* LDAP_PF_LOCAL */
1496 rc = bind( s, *sal, addrlen );
1497 #ifdef LDAP_PF_LOCAL
1498 if ( old_umask != 0 ) {
1502 #endif /* LDAP_PF_LOCAL */
1505 Debug( LDAP_DEBUG_ANY,
1506 "daemon: bind(%ld) failed errno=%d (%s)\n",
1507 (long)l.sl_sd, err, sock_errstr( err ) );
1513 switch ( (*sal)->sa_family ) {
1514 #ifdef LDAP_PF_LOCAL
1516 char *path = ((struct sockaddr_un *)*sal)->sun_path;
1517 l.sl_name.bv_len = strlen(path) + STRLENOF("PATH=");
1518 l.sl_name.bv_val = ber_memalloc( l.sl_name.bv_len + 1 );
1519 snprintf( l.sl_name.bv_val, l.sl_name.bv_len + 1,
1522 #endif /* LDAP_PF_LOCAL */
1525 char addr[INET_ADDRSTRLEN];
1527 #if defined( HAVE_GETADDRINFO ) && defined( HAVE_INET_NTOP )
1528 s = inet_ntop( AF_INET, &((struct sockaddr_in *)*sal)->sin_addr,
1529 addr, sizeof(addr) );
1530 #else /* ! HAVE_GETADDRINFO || ! HAVE_INET_NTOP */
1531 s = inet_ntoa( ((struct sockaddr_in *) *sal)->sin_addr );
1532 #endif /* ! HAVE_GETADDRINFO || ! HAVE_INET_NTOP */
1533 if (!s) s = SLAP_STRING_UNKNOWN;
1534 port = ntohs( ((struct sockaddr_in *)*sal) ->sin_port );
1536 ber_memalloc( sizeof("IP=255.255.255.255:65535") );
1537 snprintf( l.sl_name.bv_val, sizeof("IP=255.255.255.255:65535"),
1538 "IP=%s:%d", s, port );
1539 l.sl_name.bv_len = strlen( l.sl_name.bv_val );
1542 #ifdef LDAP_PF_INET6
1544 char addr[INET6_ADDRSTRLEN];
1546 s = inet_ntop( AF_INET6, &((struct sockaddr_in6 *)*sal)->sin6_addr,
1548 if (!s) s = SLAP_STRING_UNKNOWN;
1549 port = ntohs( ((struct sockaddr_in6 *)*sal)->sin6_port );
1550 l.sl_name.bv_len = strlen(s) + sizeof("IP=[]:65535");
1551 l.sl_name.bv_val = ber_memalloc( l.sl_name.bv_len );
1552 snprintf( l.sl_name.bv_val, l.sl_name.bv_len, "IP=[%s]:%d",
1554 l.sl_name.bv_len = strlen( l.sl_name.bv_val );
1556 #endif /* LDAP_PF_INET6 */
1559 Debug( LDAP_DEBUG_ANY, "daemon: unsupported address family (%d)\n",
1560 (int) (*sal)->sa_family, 0, 0 );
1564 AC_MEMCPY(&l.sl_sa, *sal, addrlen);
1565 ber_str2bv( url, 0, 1, &l.sl_url);
1566 li = ch_malloc( sizeof( Listener ) );
1568 slap_listeners[*cur] = li;
1573 slap_free_listener_addresses(psal);
1575 if ( l.sl_url.bv_val == NULL ) {
1576 Debug( LDAP_DEBUG_TRACE,
1577 "slap_open_listener: failed on %s\n", url, 0, 0 );
1581 Debug( LDAP_DEBUG_TRACE, "daemon: listener initialized %s\n",
1582 l.sl_url.bv_val, 0, 0 );
1586 static int sockinit(void);
1587 static int sockdestroy(void);
1589 static int daemon_inited = 0;
1592 slapd_daemon_init( const char *urls )
1597 Debug( LDAP_DEBUG_ARGS, "daemon_init: %s\n",
1598 urls ? urls : "<null>", 0, 0 );
1600 for ( i=0; i<SLAPD_MAX_DAEMON_THREADS; i++ ) {
1601 wake_sds[i][0] = AC_SOCKET_INVALID;
1602 wake_sds[i][1] = AC_SOCKET_INVALID;
1605 ldap_pvt_thread_mutex_init( &slap_daemon[0].sd_mutex );
1607 ldap_pvt_thread_mutex_init( &sd_tcpd_mutex );
1608 #endif /* TCP Wrappers */
1612 if( (rc = sockinit()) != 0 ) return rc;
1615 dtblsize = sysconf( _SC_OPEN_MAX );
1616 #elif defined(HAVE_GETDTABLESIZE)
1617 dtblsize = getdtablesize();
1618 #else /* ! HAVE_SYSCONF && ! HAVE_GETDTABLESIZE */
1619 dtblsize = FD_SETSIZE;
1620 #endif /* ! HAVE_SYSCONF && ! HAVE_GETDTABLESIZE */
1622 /* open a pipe (or something equivalent connected to itself).
1623 * we write a byte on this fd whenever we catch a signal. The main
1624 * loop will be select'ing on this socket, and will wake up when
1625 * this byte arrives.
1627 if( (rc = lutil_pair( wake_sds[0] )) < 0 ) {
1628 Debug( LDAP_DEBUG_ANY,
1629 "daemon: lutil_pair() failed rc=%d\n", rc, 0, 0 );
1632 ber_pvt_socket_set_nonblock( wake_sds[0][1], 1 );
1636 if( urls == NULL ) urls = "ldap:///";
1638 u = ldap_str2charray( urls, " " );
1640 if( u == NULL || u[0] == NULL ) {
1641 Debug( LDAP_DEBUG_ANY, "daemon_init: no urls (%s) provided.\n",
1644 ldap_charray_free( u );
1648 for( i=0; u[i] != NULL; i++ ) {
1649 Debug( LDAP_DEBUG_TRACE, "daemon_init: listen on %s\n",
1654 Debug( LDAP_DEBUG_ANY, "daemon_init: no listeners to open (%s)\n",
1656 ldap_charray_free( u );
1660 Debug( LDAP_DEBUG_TRACE, "daemon_init: %d listeners to open...\n",
1662 slap_listeners = ch_malloc( (i+1)*sizeof(Listener *) );
1664 for(n = 0, j = 0; u[n]; n++ ) {
1665 if ( slap_open_listener( u[n], &i, &j ) ) {
1666 ldap_charray_free( u );
1670 slap_listeners[j] = NULL;
1672 Debug( LDAP_DEBUG_TRACE, "daemon_init: %d listeners opened\n",
1677 if( slapd_register_slp ) {
1678 slapd_slp_init( urls );
1681 #endif /* HAVE_SLP */
1683 ldap_charray_free( u );
1690 slapd_daemon_destroy( void )
1692 connections_destroy();
1693 if ( daemon_inited ) {
1696 for ( i=0; i<slapd_daemon_threads; i++ ) {
1698 if ( wake_sds[i][1] != INVALID_SOCKET &&
1699 SLAP_FD2SOCK( wake_sds[i][1] ) != SLAP_FD2SOCK( wake_sds[i][0] ))
1700 #endif /* HAVE_WINSOCK */
1701 tcp_close( SLAP_FD2SOCK(wake_sds[i][1]) );
1703 if ( wake_sds[i][0] != INVALID_SOCKET )
1704 #endif /* HAVE_WINSOCK */
1705 tcp_close( SLAP_FD2SOCK(wake_sds[i][0]) );
1706 ldap_pvt_thread_mutex_destroy( &slap_daemon[i].sd_mutex );
1707 SLAP_SOCK_DESTROY(i);
1711 ldap_pvt_thread_mutex_destroy( &sd_tcpd_mutex );
1712 #endif /* TCP Wrappers */
1717 if( slapd_register_slp ) {
1721 #endif /* HAVE_SLP */
1737 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1738 Listener *lr = slap_listeners[l];
1740 if ( lr->sl_sd != AC_SOCKET_INVALID ) {
1742 lr->sl_sd = AC_SOCKET_INVALID;
1743 if ( remove ) slapd_remove( s, NULL, 0, 0, 0 );
1745 #ifdef LDAP_PF_LOCAL
1746 if ( lr->sl_sa.sa_addr.sa_family == AF_LOCAL ) {
1747 unlink( lr->sl_sa.sa_un_addr.sun_path );
1749 #endif /* LDAP_PF_LOCAL */
1757 destroy_listeners( void )
1759 Listener *lr, **ll = slap_listeners;
1764 while ( (lr = *ll++) != NULL ) {
1765 if ( lr->sl_url.bv_val ) {
1766 ber_memfree( lr->sl_url.bv_val );
1769 if ( lr->sl_name.bv_val ) {
1770 ber_memfree( lr->sl_name.bv_val );
1776 free( slap_listeners );
1777 slap_listeners = NULL;
1786 ber_socket_t s, sfd;
1787 ber_socklen_t len = sizeof(from);
1790 struct berval authid = BER_BVNULL;
1791 #ifdef SLAPD_RLOOKUPS
1792 char hbuf[NI_MAXHOST];
1793 #endif /* SLAPD_RLOOKUPS */
1795 char *dnsname = NULL;
1796 const char *peeraddr = NULL;
1797 /* we assume INET6_ADDRSTRLEN > INET_ADDRSTRLEN */
1798 char addr[INET6_ADDRSTRLEN];
1799 #ifdef LDAP_PF_LOCAL
1800 char peername[MAXPATHLEN + sizeof("PATH=")];
1801 #ifdef LDAP_PF_LOCAL_SENDMSG
1803 struct berval peerbv = BER_BVNULL;
1805 #elif defined(LDAP_PF_INET6)
1806 char peername[sizeof("IP=[ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff]:65535")];
1807 #else /* ! LDAP_PF_LOCAL && ! LDAP_PF_INET6 */
1808 char peername[sizeof("IP=255.255.255.255:65336")];
1809 #endif /* LDAP_PF_LOCAL */
1813 Debug( LDAP_DEBUG_TRACE,
1814 ">>> slap_listener(%s)\n",
1815 sl->sl_url.bv_val, 0, 0 );
1819 #ifdef LDAP_CONNECTIONLESS
1820 if ( sl->sl_is_udp ) return 1;
1821 #endif /* LDAP_CONNECTIONLESS */
1823 # ifdef LDAP_PF_LOCAL
1824 /* FIXME: apparently accept doesn't fill
1825 * the sun_path sun_path member */
1826 from.sa_un_addr.sun_path[0] = '\0';
1827 # endif /* LDAP_PF_LOCAL */
1829 s = accept( SLAP_FD2SOCK( sl->sl_sd ), (struct sockaddr *) &from, &len );
1831 /* Resume the listener FD to allow concurrent-processing of
1832 * additional incoming connections.
1835 WAKE_LISTENER(DAEMON_ID(sl->sl_sd),1);
1837 if ( s == AC_SOCKET_INVALID ) {
1838 int err = sock_errno();
1849 ldap_pvt_thread_mutex_lock( &slap_daemon[0].sd_mutex );
1851 /* Stop listening until an existing session closes */
1853 ldap_pvt_thread_mutex_unlock( &slap_daemon[0].sd_mutex );
1856 Debug( LDAP_DEBUG_ANY,
1857 "daemon: accept(%ld) failed errno=%d (%s)\n",
1858 (long) sl->sl_sd, err, sock_errstr(err) );
1859 ldap_pvt_thread_yield();
1862 sfd = SLAP_SOCKNEW( s );
1864 /* make sure descriptor number isn't too great */
1865 if ( sfd >= dtblsize ) {
1866 Debug( LDAP_DEBUG_ANY,
1867 "daemon: %ld beyond descriptor table size %ld\n",
1868 (long) sfd, (long) dtblsize, 0 );
1871 ldap_pvt_thread_yield();
1874 tid = DAEMON_ID(sfd);
1877 ldap_pvt_thread_mutex_lock( &slap_daemon[tid].sd_mutex );
1878 /* newly accepted stream should not be in any of the FD SETS */
1879 assert( SLAP_SOCK_NOT_ACTIVE( tid, sfd ));
1880 ldap_pvt_thread_mutex_unlock( &slap_daemon[tid].sd_mutex );
1881 #endif /* LDAP_DEBUG */
1883 #if defined( SO_KEEPALIVE ) || defined( TCP_NODELAY )
1884 #ifdef LDAP_PF_LOCAL
1885 /* for IPv4 and IPv6 sockets only */
1886 if ( from.sa_addr.sa_family != AF_LOCAL )
1887 #endif /* LDAP_PF_LOCAL */
1892 /* enable keep alives */
1894 rc = setsockopt( s, SOL_SOCKET, SO_KEEPALIVE,
1895 (char *) &tmp, sizeof(tmp) );
1896 if ( rc == AC_SOCKET_ERROR ) {
1897 int err = sock_errno();
1898 Debug( LDAP_DEBUG_ANY,
1899 "slapd(%ld): setsockopt(SO_KEEPALIVE) failed "
1900 "errno=%d (%s)\n", (long) sfd, err, sock_errstr(err) );
1902 #endif /* SO_KEEPALIVE */
1904 /* enable no delay */
1906 rc = setsockopt( s, IPPROTO_TCP, TCP_NODELAY,
1907 (char *)&tmp, sizeof(tmp) );
1908 if ( rc == AC_SOCKET_ERROR ) {
1909 int err = sock_errno();
1910 Debug( LDAP_DEBUG_ANY,
1911 "slapd(%ld): setsockopt(TCP_NODELAY) failed "
1912 "errno=%d (%s)\n", (long) sfd, err, sock_errstr(err) );
1914 #endif /* TCP_NODELAY */
1916 #endif /* SO_KEEPALIVE || TCP_NODELAY */
1918 Debug( LDAP_DEBUG_CONNS,
1919 "daemon: listen=%ld, new connection on %ld\n",
1920 (long) sl->sl_sd, (long) sfd, 0 );
1923 switch ( from.sa_addr.sa_family ) {
1924 # ifdef LDAP_PF_LOCAL
1926 cflag |= CONN_IS_IPC;
1928 /* FIXME: apparently accept doesn't fill
1929 * the sun_path sun_path member */
1930 if ( from.sa_un_addr.sun_path[0] == '\0' ) {
1931 AC_MEMCPY( from.sa_un_addr.sun_path,
1932 sl->sl_sa.sa_un_addr.sun_path,
1933 sizeof( from.sa_un_addr.sun_path ) );
1936 sprintf( peername, "PATH=%s", from.sa_un_addr.sun_path );
1942 #ifdef LDAP_PF_LOCAL_SENDMSG
1943 peerbv.bv_val = peerbuf;
1944 peerbv.bv_len = sizeof( peerbuf );
1946 if( LUTIL_GETPEEREID( s, &uid, &gid, &peerbv ) == 0 ) {
1947 authid.bv_val = ch_malloc(
1948 STRLENOF( "gidNumber=4294967295+uidNumber=4294967295,"
1949 "cn=peercred,cn=external,cn=auth" ) + 1 );
1950 authid.bv_len = sprintf( authid.bv_val,
1951 "gidNumber=%d+uidNumber=%d,"
1952 "cn=peercred,cn=external,cn=auth",
1953 (int) gid, (int) uid );
1954 assert( authid.bv_len <=
1955 STRLENOF( "gidNumber=4294967295+uidNumber=4294967295,"
1956 "cn=peercred,cn=external,cn=auth" ) );
1961 #endif /* LDAP_PF_LOCAL */
1963 # ifdef LDAP_PF_INET6
1965 if ( IN6_IS_ADDR_V4MAPPED(&from.sa_in6_addr.sin6_addr) ) {
1966 #if defined( HAVE_GETADDRINFO ) && defined( HAVE_INET_NTOP )
1967 peeraddr = inet_ntop( AF_INET,
1968 ((struct in_addr *)&from.sa_in6_addr.sin6_addr.s6_addr[12]),
1969 addr, sizeof(addr) );
1970 #else /* ! HAVE_GETADDRINFO || ! HAVE_INET_NTOP */
1971 peeraddr = inet_ntoa( *((struct in_addr *)
1972 &from.sa_in6_addr.sin6_addr.s6_addr[12]) );
1973 #endif /* ! HAVE_GETADDRINFO || ! HAVE_INET_NTOP */
1974 if ( !peeraddr ) peeraddr = SLAP_STRING_UNKNOWN;
1975 sprintf( peername, "IP=%s:%d", peeraddr,
1976 (unsigned) ntohs( from.sa_in6_addr.sin6_port ) );
1978 peeraddr = inet_ntop( AF_INET6,
1979 &from.sa_in6_addr.sin6_addr,
1980 addr, sizeof addr );
1981 if ( !peeraddr ) peeraddr = SLAP_STRING_UNKNOWN;
1982 sprintf( peername, "IP=[%s]:%d", peeraddr,
1983 (unsigned) ntohs( from.sa_in6_addr.sin6_port ) );
1986 # endif /* LDAP_PF_INET6 */
1989 #if defined( HAVE_GETADDRINFO ) && defined( HAVE_INET_NTOP )
1990 peeraddr = inet_ntop( AF_INET, &from.sa_in_addr.sin_addr,
1991 addr, sizeof(addr) );
1992 #else /* ! HAVE_GETADDRINFO || ! HAVE_INET_NTOP */
1993 peeraddr = inet_ntoa( from.sa_in_addr.sin_addr );
1994 #endif /* ! HAVE_GETADDRINFO || ! HAVE_INET_NTOP */
1995 if ( !peeraddr ) peeraddr = SLAP_STRING_UNKNOWN;
1996 sprintf( peername, "IP=%s:%d", peeraddr,
1997 (unsigned) ntohs( from.sa_in_addr.sin_port ) );
2005 if ( ( from.sa_addr.sa_family == AF_INET )
2006 #ifdef LDAP_PF_INET6
2007 || ( from.sa_addr.sa_family == AF_INET6 )
2008 #endif /* LDAP_PF_INET6 */
2012 #ifdef SLAPD_RLOOKUPS
2013 if ( use_reverse_lookup ) {
2015 if (ldap_pvt_get_hname( (const struct sockaddr *)&from, len, hbuf,
2016 sizeof(hbuf), &herr ) == 0) {
2017 ldap_pvt_str2lower( hbuf );
2021 #endif /* SLAPD_RLOOKUPS */
2026 ldap_pvt_thread_mutex_lock( &sd_tcpd_mutex );
2027 rc = hosts_ctl("slapd",
2028 dnsname != NULL ? dnsname : SLAP_STRING_UNKNOWN,
2030 SLAP_STRING_UNKNOWN );
2031 ldap_pvt_thread_mutex_unlock( &sd_tcpd_mutex );
2034 Statslog( LDAP_DEBUG_STATS,
2035 "fd=%ld DENIED from %s (%s)\n",
2037 dnsname != NULL ? dnsname : 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 );
2068 slap_listener_thread(
2073 Listener *sl = (Listener *)ptr;
2075 rc = slap_listener( sl );
2077 if( rc != LDAP_SUCCESS ) {
2078 Debug( LDAP_DEBUG_ANY,
2079 "slap_listener_thread(%s): failed err=%d",
2080 sl->sl_url.bv_val, rc, 0 );
2087 slap_listener_activate(
2092 Debug( LDAP_DEBUG_TRACE, "slap_listener_activate(%d): %s\n",
2093 sl->sl_sd, sl->sl_busy ? "busy" : "", 0 );
2097 rc = ldap_pvt_thread_pool_submit( &connection_pool,
2098 slap_listener_thread, (void *) sl );
2101 Debug( LDAP_DEBUG_ANY,
2102 "slap_listener_activate(%d): submit failed (%d)\n",
2113 time_t last_idle_check = 0;
2115 int tid = (ldap_pvt_thread_t *) ptr - listener_tid;
2117 #define SLAPD_IDLE_CHECK_LIMIT 4
2119 slapd_add( wake_sds[tid][0], 0, NULL, tid );
2123 /* Init stuff done only by thread 0 */
2125 last_idle_check = slap_get_time();
2127 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
2128 if ( slap_listeners[l]->sl_sd == AC_SOCKET_INVALID ) continue;
2130 #ifdef LDAP_CONNECTIONLESS
2131 /* Since this is connectionless, the data port is the
2132 * listening port. The listen() and accept() calls
2135 if ( slap_listeners[l]->sl_is_udp )
2137 #endif /* LDAP_CONNECTIONLESS */
2139 /* FIXME: TCP-only! */
2140 #ifdef LDAP_TCP_BUFFER
2142 int origsize, size, realsize, rc;
2144 char buf[ SLAP_TEXT_BUFLEN ];
2147 if ( slap_listeners[l]->sl_tcp_rmem > 0 ) {
2148 size = slap_listeners[l]->sl_tcp_rmem;
2149 } else if ( slapd_tcp_rmem > 0 ) {
2150 size = slapd_tcp_rmem;
2154 optlen = sizeof( origsize );
2155 rc = getsockopt( SLAP_FD2SOCK( slap_listeners[l]->sl_sd ),
2162 int err = sock_errno();
2163 Debug( LDAP_DEBUG_ANY,
2164 "slapd_daemon_task: getsockopt(SO_RCVBUF) failed errno=%d (%s)\n",
2165 err, sock_errstr(err), 0 );
2168 optlen = sizeof( size );
2169 rc = setsockopt( SLAP_FD2SOCK( slap_listeners[l]->sl_sd ),
2172 (const void *)&size,
2176 int err = sock_errno();
2177 Debug( LDAP_DEBUG_ANY,
2178 "slapd_daemon_task: setsockopt(SO_RCVBUF) failed errno=%d (%s)\n",
2179 err, sock_errstr(err), 0 );
2182 optlen = sizeof( realsize );
2183 rc = getsockopt( SLAP_FD2SOCK( slap_listeners[l]->sl_sd ),
2190 int err = sock_errno();
2191 Debug( LDAP_DEBUG_ANY,
2192 "slapd_daemon_task: getsockopt(SO_RCVBUF) failed errno=%d (%s)\n",
2193 err, sock_errstr(err), 0 );
2196 snprintf( buf, sizeof( buf ),
2197 "url=%s (#%d) RCVBUF original size=%d requested size=%d real size=%d",
2198 slap_listeners[l]->sl_url.bv_val, l, origsize, size, realsize );
2199 Debug( LDAP_DEBUG_ANY,
2200 "slapd_daemon_task: %s\n",
2205 if ( slap_listeners[l]->sl_tcp_wmem > 0 ) {
2206 size = slap_listeners[l]->sl_tcp_wmem;
2207 } else if ( slapd_tcp_wmem > 0 ) {
2208 size = slapd_tcp_wmem;
2212 optlen = sizeof( origsize );
2213 rc = getsockopt( SLAP_FD2SOCK( slap_listeners[l]->sl_sd ),
2220 int err = sock_errno();
2221 Debug( LDAP_DEBUG_ANY,
2222 "slapd_daemon_task: getsockopt(SO_SNDBUF) failed errno=%d (%s)\n",
2223 err, sock_errstr(err), 0 );
2226 optlen = sizeof( size );
2227 rc = setsockopt( SLAP_FD2SOCK( slap_listeners[l]->sl_sd ),
2230 (const void *)&size,
2234 int err = sock_errno();
2235 Debug( LDAP_DEBUG_ANY,
2236 "slapd_daemon_task: setsockopt(SO_SNDBUF) failed errno=%d (%s)",
2237 err, sock_errstr(err), 0 );
2240 optlen = sizeof( realsize );
2241 rc = getsockopt( SLAP_FD2SOCK( slap_listeners[l]->sl_sd ),
2248 int err = sock_errno();
2249 Debug( LDAP_DEBUG_ANY,
2250 "slapd_daemon_task: getsockopt(SO_SNDBUF) failed errno=%d (%s)\n",
2251 err, sock_errstr(err), 0 );
2254 snprintf( buf, sizeof( buf ),
2255 "url=%s (#%d) SNDBUF original size=%d requested size=%d real size=%d",
2256 slap_listeners[l]->sl_url.bv_val, l, origsize, size, realsize );
2257 Debug( LDAP_DEBUG_ANY,
2258 "slapd_daemon_task: %s\n",
2262 #endif /* LDAP_TCP_BUFFER */
2264 if ( listen( SLAP_FD2SOCK( slap_listeners[l]->sl_sd ), SLAPD_LISTEN_BACKLOG ) == -1 ) {
2265 int err = sock_errno();
2267 #ifdef LDAP_PF_INET6
2268 /* If error is EADDRINUSE, we are trying to listen to INADDR_ANY and
2269 * we are already listening to in6addr_any, then we want to ignore
2270 * this and continue.
2272 if ( err == EADDRINUSE ) {
2274 struct sockaddr_in sa = slap_listeners[l]->sl_sa.sa_in_addr;
2275 struct sockaddr_in6 sa6;
2277 if ( sa.sin_family == AF_INET &&
2278 sa.sin_addr.s_addr == htonl(INADDR_ANY) ) {
2279 for ( i = 0 ; i < l; i++ ) {
2280 sa6 = slap_listeners[i]->sl_sa.sa_in6_addr;
2281 if ( sa6.sin6_family == AF_INET6 &&
2282 !memcmp( &sa6.sin6_addr, &in6addr_any,
2283 sizeof(struct in6_addr) ) )
2290 /* We are already listening to in6addr_any */
2291 Debug( LDAP_DEBUG_CONNS,
2292 "daemon: Attempt to listen to 0.0.0.0 failed, "
2293 "already listening on ::, assuming IPv4 included\n",
2295 slapd_close( slap_listeners[l]->sl_sd );
2296 slap_listeners[l]->sl_sd = AC_SOCKET_INVALID;
2301 #endif /* LDAP_PF_INET6 */
2302 Debug( LDAP_DEBUG_ANY,
2303 "daemon: listen(%s, 5) failed errno=%d (%s)\n",
2304 slap_listeners[l]->sl_url.bv_val, err,
2309 /* make the listening socket non-blocking */
2310 if ( ber_pvt_socket_set_nonblock( SLAP_FD2SOCK( slap_listeners[l]->sl_sd ), 1 ) < 0 ) {
2311 Debug( LDAP_DEBUG_ANY, "slapd_daemon_task: "
2312 "set nonblocking on a listening socket failed\n",
2318 slapd_add( slap_listeners[l]->sl_sd, 0, slap_listeners[l], -1 );
2321 #ifdef HAVE_NT_SERVICE_MANAGER
2322 if ( started_event != NULL ) {
2323 ldap_pvt_thread_cond_signal( &started_event );
2325 #endif /* HAVE_NT_SERVICE_MANAGER */
2329 /* initialization complete. Here comes the loop. */
2331 while ( !slapd_shutdown ) {
2336 #if SLAP_EVENTS_ARE_INDEXED
2337 ber_socket_t nrfds, nwfds;
2338 #endif /* SLAP_EVENTS_ARE_INDEXED */
2339 #define SLAPD_EBADF_LIMIT 16
2346 struct timeval *tvp;
2352 now = slap_get_time();
2354 if ( !tid && ( global_idletimeout > 0 )) {
2356 /* Set the select timeout.
2357 * Don't just truncate, preserve the fractions of
2358 * seconds to prevent sleeping for zero time.
2361 tv.tv_sec = global_idletimeout / SLAPD_IDLE_CHECK_LIMIT;
2362 tv.tv_usec = global_idletimeout - \
2363 ( tv.tv_sec * SLAPD_IDLE_CHECK_LIMIT );
2364 tv.tv_usec *= 1000000 / SLAPD_IDLE_CHECK_LIMIT;
2365 if ( difftime( last_idle_check +
2366 global_idletimeout/SLAPD_IDLE_CHECK_LIMIT, now ) < 0 )
2370 connections_timeout_idle( now );
2371 last_idle_check = now;
2379 if ( slapd_gentle_shutdown ) {
2380 ber_socket_t active;
2382 if ( !tid && slapd_gentle_shutdown == 1 ) {
2384 Debug( LDAP_DEBUG_ANY, "slapd gentle shutdown\n", 0, 0, 0 );
2385 close_listeners( 1 );
2386 frontendDB->be_restrictops |= SLAP_RESTRICT_OP_WRITES;
2387 LDAP_STAILQ_FOREACH(be, &backendDB, be_next) {
2388 be->be_restrictops |= SLAP_RESTRICT_OP_WRITES;
2390 slapd_gentle_shutdown = 2;
2393 ldap_pvt_thread_mutex_lock( &slap_daemon[tid].sd_mutex );
2394 active = slap_daemon[tid].sd_nactives;
2395 ldap_pvt_thread_mutex_unlock( &slap_daemon[tid].sd_mutex );
2397 if ( active == 0 ) {
2399 for ( l=1; l<slapd_daemon_threads; l++ ) {
2400 ldap_pvt_thread_mutex_lock( &slap_daemon[l].sd_mutex );
2401 active += slap_daemon[l].sd_nactives;
2402 ldap_pvt_thread_mutex_unlock( &slap_daemon[l].sd_mutex );
2414 ldap_pvt_thread_mutex_lock( &slap_daemon[tid].sd_mutex );
2416 nwriters = slap_daemon[tid].sd_nwriters;
2419 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
2420 Listener *lr = slap_listeners[l];
2422 if ( lr->sl_sd == AC_SOCKET_INVALID ) continue;
2423 if ( DAEMON_ID( lr->sl_sd ) != tid ) continue;
2425 if ( lr->sl_mute || lr->sl_busy )
2427 SLAP_SOCK_CLR_READ( tid, lr->sl_sd );
2429 SLAP_SOCK_SET_READ( tid, lr->sl_sd );
2433 SLAP_EVENT_INIT(tid);
2435 nfds = SLAP_EVENT_MAX(tid);
2437 if (( global_idletimeout ) && slap_daemon[tid].sd_nactives ) at = 1;
2439 ldap_pvt_thread_mutex_unlock( &slap_daemon[tid].sd_mutex );
2442 #if defined(HAVE_YIELDING_SELECT) || defined(NO_THREADS)
2443 && ( tv.tv_sec || tv.tv_usec )
2444 #endif /* HAVE_YIELDING_SELECT || NO_THREADS */
2452 /* Only thread 0 handles runqueue */
2454 ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
2455 rtask = ldap_pvt_runqueue_next_sched( &slapd_rq, &cat );
2456 while ( rtask && cat.tv_sec && cat.tv_sec <= now ) {
2457 if ( ldap_pvt_runqueue_isrunning( &slapd_rq, rtask )) {
2458 ldap_pvt_runqueue_resched( &slapd_rq, rtask, 0 );
2460 ldap_pvt_runqueue_runtask( &slapd_rq, rtask );
2461 ldap_pvt_runqueue_resched( &slapd_rq, rtask, 0 );
2462 ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
2463 ldap_pvt_thread_pool_submit2( &connection_pool,
2464 rtask->routine, (void *) rtask, &rtask->pool_cookie );
2465 ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
2467 rtask = ldap_pvt_runqueue_next_sched( &slapd_rq, &cat );
2469 ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
2471 if ( rtask && cat.tv_sec ) {
2472 /* NOTE: diff __should__ always be >= 0,
2473 * AFAI understand; however (ITS#4872),
2474 * time_t might be unsigned in some systems,
2475 * while difftime() returns a double */
2476 double diff = difftime( cat.tv_sec, now );
2480 if ( tvp == NULL || diff < tv.tv_sec ) {
2488 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
2489 Listener *lr = slap_listeners[l];
2491 if ( lr->sl_sd == AC_SOCKET_INVALID ) {
2495 if ( lr->sl_mute ) {
2496 Debug( LDAP_DEBUG_CONNS,
2497 "daemon: " SLAP_EVENT_FNAME ": "
2498 "listen=%d muted\n",
2503 if ( lr->sl_busy ) {
2504 Debug( LDAP_DEBUG_CONNS,
2505 "daemon: " SLAP_EVENT_FNAME ": "
2511 Debug( LDAP_DEBUG_CONNS,
2512 "daemon: " SLAP_EVENT_FNAME ": "
2513 "listen=%d active_threads=%d tvp=%s\n",
2514 lr->sl_sd, at, tvp == NULL ? "NULL" : "zero" );
2517 SLAP_EVENT_WAIT( tid, tvp, &ns );
2519 case -1: { /* failure - try again */
2520 int err = sock_errno();
2522 if ( err != EINTR ) {
2525 /* Don't log unless we got it twice in a row */
2526 if ( !( ebadf & 1 ) ) {
2527 Debug( LDAP_DEBUG_ANY,
2533 sock_errstr( err ) );
2535 if ( ebadf >= SLAPD_EBADF_LIMIT ) {
2542 case 0: /* timeout - let threads run */
2544 #ifndef HAVE_YIELDING_SELECT
2545 Debug( LDAP_DEBUG_CONNS, "daemon: " SLAP_EVENT_FNAME
2546 "timeout - yielding\n",
2549 ldap_pvt_thread_yield();
2550 #endif /* ! HAVE_YIELDING_SELECT */
2553 default: /* something happened - deal with it */
2554 if ( slapd_shutdown ) continue;
2557 Debug( LDAP_DEBUG_CONNS,
2558 "daemon: activity on %d descriptor%s\n",
2559 ns, ns != 1 ? "s" : "", 0 );
2563 #if SLAP_EVENTS_ARE_INDEXED
2564 if ( SLAP_EVENT_IS_READ( wake_sds[tid][0] ) ) {
2566 SLAP_EVENT_CLR_READ( wake_sds[tid][0] );
2568 tcp_read( SLAP_FD2SOCK(wake_sds[tid][0]), c, sizeof(c) );
2569 Debug( LDAP_DEBUG_CONNS, "daemon: waked\n", 0, 0, 0 );
2573 /* The event slot equals the descriptor number - this is
2574 * true for Unix select and poll. We treat Windows select
2575 * like this too, even though it's a kludge.
2578 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
2581 if ( ns <= 0 ) break;
2582 if ( slap_listeners[l]->sl_sd == AC_SOCKET_INVALID ) continue;
2583 #ifdef LDAP_CONNECTIONLESS
2584 if ( slap_listeners[l]->sl_is_udp ) continue;
2585 #endif /* LDAP_CONNECTIONLESS */
2586 if ( !SLAP_EVENT_IS_READ( slap_listeners[l]->sl_sd ) ) continue;
2589 SLAP_EVENT_CLR_READ( slap_listeners[l]->sl_sd );
2590 SLAP_EVENT_CLR_WRITE( slap_listeners[l]->sl_sd );
2593 rc = slap_listener_activate( slap_listeners[l] );
2596 /* bypass the following tests if no descriptors left */
2598 #ifndef HAVE_YIELDING_SELECT
2599 ldap_pvt_thread_yield();
2600 #endif /* HAVE_YIELDING_SELECT */
2604 Debug( LDAP_DEBUG_CONNS, "daemon: activity on:", 0, 0, 0 );
2607 for ( i = 0; i < nfds; i++ ) {
2610 r = SLAP_EVENT_IS_READ( i );
2611 /* writefds was not initialized if nwriters was zero */
2612 w = nwriters ? SLAP_EVENT_IS_WRITE( i ) : 0;
2614 Debug( LDAP_DEBUG_CONNS, " %d%s%s", i,
2615 r ? "r" : "", w ? "w" : "" );
2625 if ( ns <= 0 ) break;
2627 Debug( LDAP_DEBUG_CONNS, "\n", 0, 0, 0 );
2629 /* loop through the writers */
2630 for ( i = 0; nwfds > 0; i++ ) {
2632 if ( ! SLAP_EVENT_IS_WRITE( i ) ) continue;
2635 SLAP_EVENT_CLR_WRITE( wd );
2638 Debug( LDAP_DEBUG_CONNS,
2639 "daemon: write active on %d\n",
2643 * NOTE: it is possible that the connection was closed
2644 * and that the stream is now inactive.
2645 * connection_write() must validate the stream is still
2648 * ITS#4338: if the stream is invalid, there is no need to
2649 * close it here. It has already been closed in connection.c.
2651 if ( connection_write( wd ) < 0 ) {
2652 if ( SLAP_EVENT_IS_READ( wd ) ) {
2653 SLAP_EVENT_CLR_READ( (unsigned) wd );
2659 for ( i = 0; nrfds > 0; i++ ) {
2661 if ( ! SLAP_EVENT_IS_READ( i ) ) continue;
2663 SLAP_EVENT_CLR_READ( rd );
2666 Debug ( LDAP_DEBUG_CONNS,
2667 "daemon: read activity on %d\n", rd, 0, 0 );
2669 * NOTE: it is possible that the connection was closed
2670 * and that the stream is now inactive.
2671 * connection_read() must valid the stream is still
2675 connection_read_activate( rd );
2677 #else /* !SLAP_EVENTS_ARE_INDEXED */
2679 /* The events are returned in an arbitrary list. This is true
2680 * for /dev/poll, epoll and kqueue. In order to prioritize things
2681 * so that we can handle wake_sds first, listeners second, and then
2682 * all other connections last (as we do for select), we would need
2683 * to use multiple event handles and cascade them.
2685 * That seems like a bit of hassle. So the wake_sds check has been
2686 * skipped. For epoll and kqueue we can associate arbitrary data with
2687 * an event, so we could use pointers to the listener structure
2688 * instead of just the file descriptor. For /dev/poll we have to
2689 * search the listeners array for a matching descriptor.
2691 * We now handle wake events when we see them; they are not given
2695 Debug( LDAP_DEBUG_CONNS, "daemon: activity on:", 0, 0, 0 );
2697 for ( i = 0; i < ns; i++ ) {
2700 /* Don't log listener events */
2701 if ( SLAP_EVENT_IS_LISTENER( tid, i )
2702 #ifdef LDAP_CONNECTIONLESS
2703 && !( (SLAP_EVENT_LISTENER( tid, i ))->sl_is_udp )
2704 #endif /* LDAP_CONNECTIONLESS */
2710 fd = SLAP_EVENT_FD( tid, i );
2711 /* Don't log internal wake events */
2712 if ( fd == wake_sds[tid][0] ) continue;
2714 r = SLAP_EVENT_IS_READ( i );
2715 w = SLAP_EVENT_IS_WRITE( i );
2717 Debug( LDAP_DEBUG_CONNS, " %d%s%s", fd,
2718 r ? "r" : "", w ? "w" : "" );
2721 Debug( LDAP_DEBUG_CONNS, "\n", 0, 0, 0 );
2722 #endif /* LDAP_DEBUG */
2724 for ( i = 0; i < ns; i++ ) {
2725 int rc = 1, fd, w = 0, r = 0;
2727 if ( SLAP_EVENT_IS_LISTENER( tid, i ) ) {
2728 rc = slap_listener_activate( SLAP_EVENT_LISTENER( tid, i ) );
2731 /* If we found a regular listener, rc is now zero, and we
2732 * can skip the data portion. But if it was a UDP listener
2733 * then rc is still 1, and we want to handle the data.
2736 fd = SLAP_EVENT_FD( tid, i );
2738 /* Handle wake events */
2739 if ( fd == wake_sds[tid][0] ) {
2742 tcp_read( SLAP_FD2SOCK(wake_sds[tid][0]), c, sizeof(c) );
2746 if ( SLAP_EVENT_IS_WRITE( i ) ) {
2747 Debug( LDAP_DEBUG_CONNS,
2748 "daemon: write active on %d\n",
2751 SLAP_EVENT_CLR_WRITE( i );
2755 * NOTE: it is possible that the connection was closed
2756 * and that the stream is now inactive.
2757 * connection_write() must valid the stream is still
2760 if ( connection_write( fd ) < 0 ) {
2764 /* If event is a read */
2765 if ( SLAP_EVENT_IS_READ( i )) {
2767 Debug( LDAP_DEBUG_CONNS,
2768 "daemon: read active on %d\n",
2771 SLAP_EVENT_CLR_READ( i );
2772 connection_read_activate( fd );
2775 /* Don't keep reporting the hangup
2777 if ( SLAP_SOCK_IS_ACTIVE( tid, fd )) {
2778 SLAP_EPOLL_SOCK_SET( tid, fd, EPOLLET );
2784 #endif /* SLAP_EVENTS_ARE_INDEXED */
2786 #ifndef HAVE_YIELDING_SELECT
2787 ldap_pvt_thread_yield();
2788 #endif /* ! HAVE_YIELDING_SELECT */
2791 /* Only thread 0 handles shutdown */
2795 if ( slapd_shutdown == 1 ) {
2796 Debug( LDAP_DEBUG_ANY,
2797 "daemon: shutdown requested and initiated.\n",
2800 } else if ( slapd_shutdown == 2 ) {
2801 #ifdef HAVE_NT_SERVICE_MANAGER
2802 Debug( LDAP_DEBUG_ANY,
2803 "daemon: shutdown initiated by Service Manager.\n",
2805 #else /* !HAVE_NT_SERVICE_MANAGER */
2806 Debug( LDAP_DEBUG_ANY,
2807 "daemon: abnormal condition, shutdown initiated.\n",
2809 #endif /* !HAVE_NT_SERVICE_MANAGER */
2811 Debug( LDAP_DEBUG_ANY,
2812 "daemon: no active streams, shutdown initiated.\n",
2816 close_listeners( 0 );
2818 if ( !slapd_gentle_shutdown ) {
2819 slapd_abrupt_shutdown = 1;
2820 connections_shutdown();
2823 if ( LogTest( LDAP_DEBUG_ANY )) {
2824 int t = ldap_pvt_thread_pool_backload( &connection_pool );
2825 Debug( LDAP_DEBUG_ANY,
2826 "slapd shutdown: waiting for %d operations/tasks to finish\n",
2829 ldap_pvt_thread_pool_destroy( &connection_pool, 1 );
2835 #ifdef LDAP_CONNECTIONLESS
2837 connectionless_init( void )
2841 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
2842 Listener *lr = slap_listeners[l];
2845 if ( !lr->sl_is_udp ) {
2849 c = connection_init( lr->sl_sd, lr, "", "",
2850 CONN_IS_UDP, (slap_ssf_t) 0, NULL
2851 LDAP_PF_LOCAL_SENDMSG_ARG(NULL));
2854 Debug( LDAP_DEBUG_TRACE,
2855 "connectionless_init: failed on %s (%d)\n",
2856 lr->sl_url.bv_val, lr->sl_sd, 0 );
2864 #endif /* LDAP_CONNECTIONLESS */
2867 slapd_daemon( void )
2871 #ifdef LDAP_CONNECTIONLESS
2872 connectionless_init();
2873 #endif /* LDAP_CONNECTIONLESS */
2875 if ( slapd_daemon_threads > SLAPD_MAX_DAEMON_THREADS )
2876 slapd_daemon_threads = SLAPD_MAX_DAEMON_THREADS;
2878 listener_tid = ch_malloc(slapd_daemon_threads * sizeof(ldap_pvt_thread_t));
2880 /* daemon_init only inits element 0 */
2881 for ( i=1; i<slapd_daemon_threads; i++ )
2883 ldap_pvt_thread_mutex_init( &slap_daemon[i].sd_mutex );
2885 if( (rc = lutil_pair( wake_sds[i] )) < 0 ) {
2886 Debug( LDAP_DEBUG_ANY,
2887 "daemon: lutil_pair() failed rc=%d\n", rc, 0, 0 );
2890 ber_pvt_socket_set_nonblock( wake_sds[i][1], 1 );
2895 for ( i=0; i<slapd_daemon_threads; i++ )
2897 /* listener as a separate THREAD */
2898 rc = ldap_pvt_thread_create( &listener_tid[i],
2899 0, slapd_daemon_task, &listener_tid[i] );
2902 Debug( LDAP_DEBUG_ANY,
2903 "listener ldap_pvt_thread_create failed (%d)\n", rc, 0, 0 );
2908 /* wait for the listener threads to complete */
2909 for ( i=0; i<slapd_daemon_threads; i++ )
2910 ldap_pvt_thread_join( listener_tid[i], (void *)NULL );
2912 destroy_listeners();
2913 ch_free( listener_tid );
2914 listener_tid = NULL;
2922 #if defined( HAVE_WINSOCK2 )
2923 WORD wVersionRequested;
2927 wVersionRequested = MAKEWORD( 2, 0 );
2929 err = WSAStartup( wVersionRequested, &wsaData );
2931 /* Tell the user that we couldn't find a usable */
2936 /* Confirm that the WinSock DLL supports 2.0.*/
2937 /* Note that if the DLL supports versions greater */
2938 /* than 2.0 in addition to 2.0, it will still return */
2939 /* 2.0 in wVersion since that is the version we */
2942 if ( LOBYTE( wsaData.wVersion ) != 2 ||
2943 HIBYTE( wsaData.wVersion ) != 0 )
2945 /* Tell the user that we couldn't find a usable */
2951 /* The WinSock DLL is acceptable. Proceed. */
2952 #elif defined( HAVE_WINSOCK )
2954 if ( WSAStartup( 0x0101, &wsaData ) != 0 ) return -1;
2955 #endif /* ! HAVE_WINSOCK2 && ! HAVE_WINSOCK */
2963 #if defined( HAVE_WINSOCK2 ) || defined( HAVE_WINSOCK )
2965 #endif /* HAVE_WINSOCK2 || HAVE_WINSOCK */
2971 slap_sig_shutdown( int sig )
2973 int save_errno = errno;
2977 Debug(LDAP_DEBUG_TRACE, "slap_sig_shutdown: signal %d\n", sig, 0, 0);
2981 * If the NT Service Manager is controlling the server, we don't
2982 * want SIGBREAK to kill the server. For some strange reason,
2983 * SIGBREAK is generated when a user logs out.
2986 #if defined(HAVE_NT_SERVICE_MANAGER) && defined(SIGBREAK)
2987 if (is_NT_Service && sig == SIGBREAK) {
2990 #endif /* HAVE_NT_SERVICE_MANAGER && SIGBREAK */
2992 if (sig == SIGHUP && global_gentlehup && slapd_gentle_shutdown == 0) {
2993 slapd_gentle_shutdown = 1;
3000 for (i=0; i<slapd_daemon_threads; i++) {
3004 /* reinstall self */
3005 (void) SIGNAL_REINSTALL( sig, slap_sig_shutdown );
3011 slap_sig_wake( int sig )
3013 int save_errno = errno;
3017 /* reinstall self */
3018 (void) SIGNAL_REINSTALL( sig, slap_sig_wake );
3025 slapd_add_internal( ber_socket_t s, int isactive )
3027 slapd_add( s, isactive, NULL, -1 );
3031 slapd_get_listeners( void )
3033 /* Could return array with no listeners if !listening, but current
3034 * callers mostly look at the URLs. E.g. syncrepl uses this to
3035 * identify the server, which means it wants the startup arguments.
3037 return slap_listeners;
3040 /* Reject all incoming requests */
3042 slap_suspend_listeners( void )
3045 for (i=0; slap_listeners[i]; i++) {
3046 slap_listeners[i]->sl_mute = 1;
3047 listen( slap_listeners[i]->sl_sd, 0 );
3051 /* Resume after a suspend */
3053 slap_resume_listeners( void )
3056 for (i=0; slap_listeners[i]; i++) {
3057 slap_listeners[i]->sl_mute = 0;
3058 listen( slap_listeners[i]->sl_sd, SLAPD_LISTEN_BACKLOG );
3063 slap_wake_listener()
3068 /* return 0 on timeout, 1 on writer ready
3069 * -1 on general error
3072 slapd_wait_writer( ber_socket_t sd )
3076 struct timeval tv, *tvp;
3078 FD_ZERO( &writefds );
3079 FD_SET( slapd_ws_sockets[sd], &writefds );
3080 if ( global_writetimeout ) {
3081 tv.tv_sec = global_writetimeout;
3087 return select( 0, NULL, &writefds, NULL, tvp );
3090 int timeout = global_writetimeout ? global_writetimeout * 1000 : -1;
3093 fds.events = POLLOUT;
3095 return poll( &fds, 1, timeout );