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s3:lib: remove unused sessionid_*() functions
[Samba/gebeck_regimport.git] / source3 / smbd / server.c
blobbad67526b4ff4ff728d91852ce126cf906a0060f
1 /*
2 Unix SMB/CIFS implementation.
3 Main SMB server routines
4 Copyright (C) Andrew Tridgell 1992-1998
5 Copyright (C) Martin Pool 2002
6 Copyright (C) Jelmer Vernooij 2002-2003
7 Copyright (C) Volker Lendecke 1993-2007
8 Copyright (C) Jeremy Allison 1993-2007
9
10 This program is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation; either version 3 of the License, or
13 (at your option) any later version.
14
15 This program is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
19
20 You should have received a copy of the GNU General Public License
21 along with this program. If not, see <http://www.gnu.org/licenses/>.
22 */
23
24 #include "includes.h"
25 #include "system/filesys.h"
26 #include "popt_common.h"
27 #include "smbd/smbd.h"
28 #include "smbd/globals.h"
29 #include "registry/reg_init_full.h"
30 #include "libcli/auth/schannel.h"
31 #include "secrets.h"
32 #include "memcache.h"
33 #include "ctdbd_conn.h"
34 #include "printing/queue_process.h"
35 #include "rpc_server/rpc_service_setup.h"
36 #include "rpc_server/rpc_config.h"
37 #include "serverid.h"
38 #include "passdb.h"
39 #include "auth.h"
40 #include "messages.h"
41 #include "smbprofile.h"
42 #include "lib/id_cache.h"
43 #include "lib/param/param.h"
44 #include "lib/background.h"
45 #include "lib/conn_tdb.h"
46 #include "../lib/util/pidfile.h"
47 #include "lib/smbd_shim.h"
48
49 struct smbd_open_socket;
50 struct smbd_child_pid;
51
52 struct smbd_parent_context {
53 bool interactive;
54
55 struct tevent_context *ev_ctx;
56 struct messaging_context *msg_ctx;
57
58 /* the list of listening sockets */
59 struct smbd_open_socket *sockets;
60
61 /* the list of current child processes */
62 struct smbd_child_pid *children;
63 size_t num_children;
64
65 struct timed_event *cleanup_te;
66 };
67
68 struct smbd_open_socket {
69 struct smbd_open_socket *prev, *next;
70 struct smbd_parent_context *parent;
71 int fd;
72 struct tevent_fd *fde;
73 };
74
75 struct smbd_child_pid {
76 struct smbd_child_pid *prev, *next;
77 pid_t pid;
78 };
79
80 extern void start_epmd(struct tevent_context *ev_ctx,
81 struct messaging_context *msg_ctx);
82
83 extern void start_lsasd(struct event_context *ev_ctx,
84 struct messaging_context *msg_ctx);
85
86 #ifdef WITH_DFS
87 extern int dcelogin_atmost_once;
88 #endif /* WITH_DFS */
89
90 /*******************************************************************
91 What to do when smb.conf is updated.
92 ********************************************************************/
93
94 static void smbd_parent_conf_updated(struct messaging_context *msg,
95 void *private_data,
96 uint32_t msg_type,
97 struct server_id server_id,
98 DATA_BLOB *data)
99 {
100 struct tevent_context *ev_ctx =
101 talloc_get_type_abort(private_data, struct tevent_context);
102
103 DEBUG(10,("smbd_parent_conf_updated: Got message saying smb.conf was "
104 "updated. Reloading.\n"));
105 change_to_root_user();
106 reload_services(NULL, NULL, false);
107 printing_subsystem_update(ev_ctx, msg, false);
108 }
109
110 /*******************************************************************
111 What to do when printcap is updated.
112 ********************************************************************/
113
114 static void smb_pcap_updated(struct messaging_context *msg,
115 void *private_data,
116 uint32_t msg_type,
117 struct server_id server_id,
118 DATA_BLOB *data)
119 {
120 struct tevent_context *ev_ctx =
121 talloc_get_type_abort(private_data, struct tevent_context);
122
123 DEBUG(10,("Got message saying pcap was updated. Reloading.\n"));
124 change_to_root_user();
125 delete_and_reload_printers(ev_ctx, msg);
126 }
127
128 /*******************************************************************
129 Delete a statcache entry.
130 ********************************************************************/
131
132 static void smb_stat_cache_delete(struct messaging_context *msg,
133 void *private_data,
134 uint32_t msg_tnype,
135 struct server_id server_id,
136 DATA_BLOB *data)
137 {
138 const char *name = (const char *)data->data;
139 DEBUG(10,("smb_stat_cache_delete: delete name %s\n", name));
140 stat_cache_delete(name);
141 }
142
143 /****************************************************************************
144 Send a SIGTERM to our process group.
145 *****************************************************************************/
146
147 static void killkids(void)
148 {
149 if(am_parent) kill(0,SIGTERM);
150 }
151
152 static void msg_exit_server(struct messaging_context *msg,
153 void *private_data,
154 uint32_t msg_type,
155 struct server_id server_id,
156 DATA_BLOB *data)
157 {
158 DEBUG(3, ("got a SHUTDOWN message\n"));
159 exit_server_cleanly(NULL);
160 }
161
162 #ifdef DEVELOPER
163 static void msg_inject_fault(struct messaging_context *msg,
164 void *private_data,
165 uint32_t msg_type,
166 struct server_id src,
167 DATA_BLOB *data)
168 {
169 int sig;
170
171 if (data->length != sizeof(sig)) {
172 DEBUG(0, ("Process %s sent bogus signal injection request\n",
173 procid_str_static(&src)));
174 return;
175 }
176
177 sig = *(int *)data->data;
178 if (sig == -1) {
179 exit_server("internal error injected");
180 return;
181 }
182
183 #if HAVE_STRSIGNAL
184 DEBUG(0, ("Process %s requested injection of signal %d (%s)\n",
185 procid_str_static(&src), sig, strsignal(sig)));
186 #else
187 DEBUG(0, ("Process %s requested injection of signal %d\n",
188 procid_str_static(&src), sig));
189 #endif
190
191 kill(getpid(), sig);
192 }
193 #endif /* DEVELOPER */
194
195 NTSTATUS messaging_send_to_children(struct messaging_context *msg_ctx,
196 uint32_t msg_type, DATA_BLOB* data)
197 {
198 NTSTATUS status;
199 struct smbd_parent_context *parent = am_parent;
200 struct smbd_child_pid *child;
201
202 if (parent == NULL) {
203 return NT_STATUS_INTERNAL_ERROR;
204 }
205
206 for (child = parent->children; child != NULL; child = child->next) {
207 status = messaging_send(parent->msg_ctx,
208 pid_to_procid(child->pid),
209 msg_type, data);
210 if (!NT_STATUS_IS_OK(status)) {
211 return status;
212 }
213 }
214 return NT_STATUS_OK;
215 }
216
217 /*
218 * Parent smbd process sets its own debug level first and then
219 * sends a message to all the smbd children to adjust their debug
220 * level to that of the parent.
221 */
222
223 static void smbd_msg_debug(struct messaging_context *msg_ctx,
224 void *private_data,
225 uint32_t msg_type,
226 struct server_id server_id,
227 DATA_BLOB *data)
228 {
229 debug_message(msg_ctx, private_data, MSG_DEBUG, server_id, data);
230
231 messaging_send_to_children(msg_ctx, MSG_DEBUG, data);
232 }
233
234 static void smbd_parent_id_cache_kill(struct messaging_context *msg_ctx,
235 void *private_data,
236 uint32_t msg_type,
237 struct server_id server_id,
238 DATA_BLOB* data)
239 {
240 const char *msg = (data && data->data)
241 ? (const char *)data->data : "<NULL>";
242 struct id_cache_ref id;
243
244 if (!id_cache_ref_parse(msg, &id)) {
245 DEBUG(0, ("Invalid ?ID: %s\n", msg));
246 return;
247 }
248
249 id_cache_delete_from_cache(&id);
250
251 messaging_send_to_children(msg_ctx, msg_type, data);
252 }
253
254 static void smbd_parent_id_cache_delete(struct messaging_context *ctx,
255 void* data,
256 uint32_t msg_type,
257 struct server_id srv_id,
258 DATA_BLOB* msg_data)
259 {
260 id_cache_delete_message(ctx, data, msg_type, srv_id, msg_data);
261
262 messaging_send_to_children(ctx, msg_type, msg_data);
263 }
264
265 struct smbd_parent_notify_state {
266 struct tevent_context *ev;
267 struct messaging_context *msg;
268 uint32_t msgtype;
269 struct notify_context *notify;
270 };
271
272 static int smbd_parent_notify_cleanup(void *private_data);
273 static void smbd_parent_notify_cleanup_done(struct tevent_req *req);
274 static void smbd_parent_notify_proxy_done(struct tevent_req *req);
275
276 static bool smbd_parent_notify_init(TALLOC_CTX *mem_ctx,
277 struct messaging_context *msg,
278 struct tevent_context *ev)
279 {
280 struct smbd_parent_notify_state *state;
281 struct tevent_req *req;
282
283 state = talloc(mem_ctx, struct smbd_parent_notify_state);
284 if (state == NULL) {
285 return NULL;
286 }
287 state->msg = msg;
288 state->ev = ev;
289 state->msgtype = MSG_SMB_NOTIFY_CLEANUP;
290
291 state->notify = notify_init(state, msg, ev);
292 if (state->notify == NULL) {
293 goto fail;
294 }
295 req = background_job_send(
296 state, state->ev, state->msg, &state->msgtype, 1,
297 lp_parm_int(-1, "smbd", "notify cleanup interval", 60),
298 smbd_parent_notify_cleanup, state->notify);
299 if (req == NULL) {
300 goto fail;
301 }
302 tevent_req_set_callback(req, smbd_parent_notify_cleanup_done, state);
303
304 if (!lp_clustering()) {
305 return true;
306 }
307
308 req = notify_cluster_proxy_send(state, ev, state->notify);
309 if (req == NULL) {
310 goto fail;
311 }
312 tevent_req_set_callback(req, smbd_parent_notify_proxy_done, state);
313
314 return true;
315 fail:
316 TALLOC_FREE(state);
317 return false;
318 }
319
320 static int smbd_parent_notify_cleanup(void *private_data)
321 {
322 struct notify_context *notify = talloc_get_type_abort(
323 private_data, struct notify_context);
324 notify_cleanup(notify);
325 return lp_parm_int(-1, "smbd", "notify cleanup interval", 60);
326 }
327
328 static void smbd_parent_notify_cleanup_done(struct tevent_req *req)
329 {
330 struct smbd_parent_notify_state *state = tevent_req_callback_data(
331 req, struct smbd_parent_notify_state);
332 NTSTATUS status;
333
334 status = background_job_recv(req);
335 TALLOC_FREE(req);
336 DEBUG(1, ("notify cleanup job ended with %s\n", nt_errstr(status)));
337
338 /*
339 * Provide self-healing: Whatever the error condition was, it
340 * will have printed it into log.smbd. Just retrying and
341 * spamming log.smbd once a minute should be fine.
342 */
343 req = background_job_send(
344 state, state->ev, state->msg, &state->msgtype, 1, 60,
345 smbd_parent_notify_cleanup, state->notify);
346 if (req == NULL) {
347 DEBUG(1, ("background_job_send failed\n"));
348 return;
349 }
350 tevent_req_set_callback(req, smbd_parent_notify_cleanup_done, state);
351 }
352
353 static void smbd_parent_notify_proxy_done(struct tevent_req *req)
354 {
355 int ret;
356
357 ret = notify_cluster_proxy_recv(req);
358 TALLOC_FREE(req);
359 DEBUG(1, ("notify proxy job ended with %s\n", strerror(ret)));
360 }
361
362 static void smb_parent_force_tdis(struct messaging_context *ctx,
363 void* data,
364 uint32_t msg_type,
365 struct server_id srv_id,
366 DATA_BLOB* msg_data)
367 {
368 messaging_send_to_children(ctx, msg_type, msg_data);
369 }
370
371 static void add_child_pid(struct smbd_parent_context *parent,
372 pid_t pid)
373 {
374 struct smbd_child_pid *child;
375
376 child = talloc_zero(parent, struct smbd_child_pid);
377 if (child == NULL) {
378 DEBUG(0, ("Could not add child struct -- malloc failed\n"));
379 return;
380 }
381 child->pid = pid;
382 DLIST_ADD(parent->children, child);
383 parent->num_children += 1;
384 }
385
386 /*
387 at most every smbd:cleanuptime seconds (default 20), we scan the BRL
388 and locking database for entries to cleanup. As a side effect this
389 also cleans up dead entries in the connections database (due to the
390 traversal in message_send_all()
391
392 Using a timer for this prevents a flood of traversals when a large
393 number of clients disconnect at the same time (perhaps due to a
394 network outage).
395 */
396
397 static void cleanup_timeout_fn(struct event_context *event_ctx,
398 struct timed_event *te,
399 struct timeval now,
400 void *private_data)
401 {
402 struct smbd_parent_context *parent =
403 talloc_get_type_abort(private_data,
404 struct smbd_parent_context);
405
406 parent->cleanup_te = NULL;
407
408 DEBUG(1,("Cleaning up brl and lock database after unclean shutdown\n"));
409 message_send_all(parent->msg_ctx, MSG_SMB_UNLOCK, NULL, 0, NULL);
410 messaging_send_buf(parent->msg_ctx,
411 messaging_server_id(parent->msg_ctx),
412 MSG_SMB_BRL_VALIDATE, NULL, 0);
413 }
414
415 static void remove_child_pid(struct smbd_parent_context *parent,
416 pid_t pid,
417 bool unclean_shutdown)
418 {
419 struct smbd_child_pid *child;
420 struct server_id child_id;
421
422 child_id = pid_to_procid(pid);
423
424 for (child = parent->children; child != NULL; child = child->next) {
425 if (child->pid == pid) {
426 struct smbd_child_pid *tmp = child;
427 DLIST_REMOVE(parent->children, child);
428 TALLOC_FREE(tmp);
429 parent->num_children -= 1;
430 break;
431 }
432 }
433
434 if (child == NULL) {
435 /* not all forked child processes are added to the children list */
436 DEBUG(2, ("Could not find child %d -- ignoring\n", (int)pid));
437 return;
438 }
439
440 if (unclean_shutdown) {
441 /* a child terminated uncleanly so tickle all
442 processes to see if they can grab any of the
443 pending locks
444 */
445 DEBUG(3,(__location__ " Unclean shutdown of pid %u\n",
446 (unsigned int)pid));
447 if (parent->cleanup_te == NULL) {
448 /* call the cleanup timer, but not too often */
449 int cleanup_time = lp_parm_int(-1, "smbd", "cleanuptime", 20);
450 parent->cleanup_te = tevent_add_timer(parent->ev_ctx,
451 parent,
452 timeval_current_ofs(cleanup_time, 0),
453 cleanup_timeout_fn,
454 parent);
455 DEBUG(1,("Scheduled cleanup of brl and lock database after unclean shutdown\n"));
456 }
457 }
458
459 if (!serverid_deregister(child_id)) {
460 DEBUG(1, ("Could not remove pid %d from serverid.tdb\n",
461 (int)pid));
462 }
463 }
464
465 /****************************************************************************
466 Have we reached the process limit ?
467 ****************************************************************************/
468
469 static bool allowable_number_of_smbd_processes(struct smbd_parent_context *parent)
470 {
471 int max_processes = lp_max_smbd_processes();
472
473 if (!max_processes)
474 return True;
475
476 return parent->num_children < max_processes;
477 }
478
479 static void smbd_sig_chld_handler(struct tevent_context *ev,
480 struct tevent_signal *se,
481 int signum,
482 int count,
483 void *siginfo,
484 void *private_data)
485 {
486 pid_t pid;
487 int status;
488 struct smbd_parent_context *parent =
489 talloc_get_type_abort(private_data,
490 struct smbd_parent_context);
491
492 while ((pid = sys_waitpid(-1, &status, WNOHANG)) > 0) {
493 bool unclean_shutdown = False;
494
495 /* If the child terminated normally, assume
496 it was an unclean shutdown unless the
497 status is 0
498 */
499 if (WIFEXITED(status)) {
500 unclean_shutdown = WEXITSTATUS(status);
501 }
502 /* If the child terminated due to a signal
503 we always assume it was unclean.
504 */
505 if (WIFSIGNALED(status)) {
506 unclean_shutdown = True;
507 }
508 remove_child_pid(parent, pid, unclean_shutdown);
509 }
510 }
511
512 static void smbd_setup_sig_chld_handler(struct smbd_parent_context *parent)
513 {
514 struct tevent_signal *se;
515
516 se = tevent_add_signal(parent->ev_ctx,
517 parent, /* mem_ctx */
518 SIGCHLD, 0,
519 smbd_sig_chld_handler,
520 parent);
521 if (!se) {
522 exit_server("failed to setup SIGCHLD handler");
523 }
524 }
525
526 static void smbd_open_socket_close_fn(struct tevent_context *ev,
527 struct tevent_fd *fde,
528 int fd,
529 void *private_data)
530 {
531 /* this might be the socket_wrapper swrap_close() */
532 close(fd);
533 }
534
535 static void smbd_accept_connection(struct tevent_context *ev,
536 struct tevent_fd *fde,
537 uint16_t flags,
538 void *private_data)
539 {
540 struct smbd_open_socket *s = talloc_get_type_abort(private_data,
541 struct smbd_open_socket);
542 struct messaging_context *msg_ctx = s->parent->msg_ctx;
543 struct sockaddr_storage addr;
544 socklen_t in_addrlen = sizeof(addr);
545 int fd;
546 pid_t pid = 0;
547 uint64_t unique_id;
548
549 fd = accept(s->fd, (struct sockaddr *)(void *)&addr,&in_addrlen);
550 if (fd == -1 && errno == EINTR)
551 return;
552
553 if (fd == -1) {
554 DEBUG(0,("open_sockets_smbd: accept: %s\n",
555 strerror(errno)));
556 return;
557 }
558
559 if (s->parent->interactive) {
560 reinit_after_fork(msg_ctx, ev, true);
561 smbd_process(ev, msg_ctx, fd, true);
562 exit_server_cleanly("end of interactive mode");
563 return;
564 }
565
566 if (!allowable_number_of_smbd_processes(s->parent)) {
567 close(fd);
568 return;
569 }
570
571 /*
572 * Generate a unique id in the parent process so that we use
573 * the global random state in the parent.
574 */
575 unique_id = serverid_get_random_unique_id();
576
577 pid = fork();
578 if (pid == 0) {
579 NTSTATUS status = NT_STATUS_OK;
580
581 /* Child code ... */
582 am_parent = NULL;
583
584 /*
585 * Can't use TALLOC_FREE here. Nulling out the argument to it
586 * would overwrite memory we've just freed.
587 */
588 talloc_free(s->parent);
589 s = NULL;
590
591 set_my_unique_id(unique_id);
592
593 /* Stop zombies, the parent explicitly handles
594 * them, counting worker smbds. */
595 CatchChild();
596
597 status = reinit_after_fork(msg_ctx,
598 ev,
599 true);
600 if (!NT_STATUS_IS_OK(status)) {
601 if (NT_STATUS_EQUAL(status,
602 NT_STATUS_TOO_MANY_OPENED_FILES)) {
603 DEBUG(0,("child process cannot initialize "
604 "because too many files are open\n"));
605 goto exit;
606 }
607 if (lp_clustering() &&
608 NT_STATUS_EQUAL(status,
609 NT_STATUS_INTERNAL_DB_ERROR)) {
610 DEBUG(1,("child process cannot initialize "
611 "because connection to CTDB "
612 "has failed\n"));
613 goto exit;
614 }
615
616 DEBUG(0,("reinit_after_fork() failed\n"));
617 smb_panic("reinit_after_fork() failed");
618 }
619
620 smbd_process(ev, msg_ctx, fd, false);
621 exit:
622 exit_server_cleanly("end of child");
623 return;
624 }
625
626 if (pid < 0) {
627 DEBUG(0,("smbd_accept_connection: fork() failed: %s\n",
628 strerror(errno)));
629 }
630
631 /* The parent doesn't need this socket */
632 close(fd);
633
634 /* Sun May 6 18:56:14 2001 ackley@cs.unm.edu:
635 Clear the closed fd info out of server_fd --
636 and more importantly, out of client_fd in
637 util_sock.c, to avoid a possible
638 getpeername failure if we reopen the logs
639 and use %I in the filename.
640 */
641
642 if (pid != 0) {
643 add_child_pid(s->parent, pid);
644 }
645
646 /* Force parent to check log size after
647 * spawning child. Fix from
648 * klausr@ITAP.Physik.Uni-Stuttgart.De. The
649 * parent smbd will log to logserver.smb. It
650 * writes only two messages for each child
651 * started/finished. But each child writes,
652 * say, 50 messages also in logserver.smb,
653 * begining with the debug_count of the
654 * parent, before the child opens its own log
655 * file logserver.client. In a worst case
656 * scenario the size of logserver.smb would be
657 * checked after about 50*50=2500 messages
658 * (ca. 100kb).
659 * */
660 force_check_log_size();
661 }
662
663 static bool smbd_open_one_socket(struct smbd_parent_context *parent,
664 struct tevent_context *ev_ctx,
665 struct messaging_context *msg_ctx,
666 const struct sockaddr_storage *ifss,
667 uint16_t port)
668 {
669 struct smbd_open_socket *s;
670
671 s = talloc(parent, struct smbd_open_socket);
672 if (!s) {
673 return false;
674 }
675
676 s->parent = parent;
677 s->fd = open_socket_in(SOCK_STREAM,
678 port,
679 parent->sockets == NULL ? 0 : 2,
680 ifss,
681 true);
682 if (s->fd == -1) {
683 DEBUG(0,("smbd_open_once_socket: open_socket_in: "
684 "%s\n", strerror(errno)));
685 TALLOC_FREE(s);
686 /*
687 * We ignore an error here, as we've done before
688 */
689 return true;
690 }
691
692 /* ready to listen */
693 set_socket_options(s->fd, "SO_KEEPALIVE");
694 set_socket_options(s->fd, lp_socket_options());
695
696 /* Set server socket to
697 * non-blocking for the accept. */
698 set_blocking(s->fd, False);
699
700 if (listen(s->fd, SMBD_LISTEN_BACKLOG) == -1) {
701 DEBUG(0,("open_sockets_smbd: listen: "
702 "%s\n", strerror(errno)));
703 close(s->fd);
704 TALLOC_FREE(s);
705 return false;
706 }
707
708 s->fde = tevent_add_fd(ev_ctx,
709 s,
710 s->fd, TEVENT_FD_READ,
711 smbd_accept_connection,
712 s);
713 if (!s->fde) {
714 DEBUG(0,("open_sockets_smbd: "
715 "tevent_add_fd: %s\n",
716 strerror(errno)));
717 close(s->fd);
718 TALLOC_FREE(s);
719 return false;
720 }
721 tevent_fd_set_close_fn(s->fde, smbd_open_socket_close_fn);
722
723 DLIST_ADD_END(parent->sockets, s, struct smbd_open_socket *);
724
725 return true;
726 }
727
728 /****************************************************************************
729 Open the socket communication.
730 ****************************************************************************/
731
732 static bool open_sockets_smbd(struct smbd_parent_context *parent,
733 struct tevent_context *ev_ctx,
734 struct messaging_context *msg_ctx,
735 const char *smb_ports)
736 {
737 int num_interfaces = iface_count();
738 int i,j;
739 const char **ports;
740 unsigned dns_port = 0;
741
742 #ifdef HAVE_ATEXIT
743 atexit(killkids);
744 #endif
745
746 /* Stop zombies */
747 smbd_setup_sig_chld_handler(parent);
748
749 ports = lp_smb_ports();
750
751 /* use a reasonable default set of ports - listing on 445 and 139 */
752 if (smb_ports) {
753 ports = (const char **)str_list_make_v3(talloc_tos(), smb_ports, NULL);
754 }
755
756 for (j = 0; ports && ports[j]; j++) {
757 unsigned port = atoi(ports[j]);
758
759 if (port == 0 || port > 0xffff) {
760 exit_server_cleanly("Invalid port in the config or on "
761 "the commandline specified!");
762 }
763 }
764
765 if (lp_interfaces() && lp_bind_interfaces_only()) {
766 /* We have been given an interfaces line, and been
767 told to only bind to those interfaces. Create a
768 socket per interface and bind to only these.
769 */
770
771 /* Now open a listen socket for each of the
772 interfaces. */
773 for(i = 0; i < num_interfaces; i++) {
774 const struct sockaddr_storage *ifss =
775 iface_n_sockaddr_storage(i);
776 if (ifss == NULL) {
777 DEBUG(0,("open_sockets_smbd: "
778 "interface %d has NULL IP address !\n",
779 i));
780 continue;
781 }
782
783 for (j = 0; ports && ports[j]; j++) {
784 unsigned port = atoi(ports[j]);
785
786 /* Keep the first port for mDNS service
787 * registration.
788 */
789 if (dns_port == 0) {
790 dns_port = port;
791 }
792
793 if (!smbd_open_one_socket(parent,
794 ev_ctx,
795 msg_ctx,
796 ifss,
797 port)) {
798 return false;
799 }
800 }
801 }
802 } else {
803 /* Just bind to 0.0.0.0 - accept connections
804 from anywhere. */
805
806 const char *sock_addr;
807 char *sock_tok;
808 const char *sock_ptr;
809
810 #if HAVE_IPV6
811 sock_addr = "::,0.0.0.0";
812 #else
813 sock_addr = "0.0.0.0";
814 #endif
815
816 for (sock_ptr=sock_addr;
817 next_token_talloc(talloc_tos(), &sock_ptr, &sock_tok, " \t,"); ) {
818 for (j = 0; ports && ports[j]; j++) {
819 struct sockaddr_storage ss;
820 unsigned port = atoi(ports[j]);
821
822 /* Keep the first port for mDNS service
823 * registration.
824 */
825 if (dns_port == 0) {
826 dns_port = port;
827 }
828
829 /* open an incoming socket */
830 if (!interpret_string_addr(&ss, sock_tok,
831 AI_NUMERICHOST|AI_PASSIVE)) {
832 continue;
833 }
834
835 if (!smbd_open_one_socket(parent,
836 ev_ctx,
837 msg_ctx,
838 &ss,
839 port)) {
840 return false;
841 }
842 }
843 }
844 }
845
846 if (parent->sockets == NULL) {
847 DEBUG(0,("open_sockets_smbd: No "
848 "sockets available to bind to.\n"));
849 return false;
850 }
851
852 /* Setup the main smbd so that we can get messages. Note that
853 do this after starting listening. This is needed as when in
854 clustered mode, ctdb won't allow us to start doing database
855 operations until it has gone thru a full startup, which
856 includes checking to see that smbd is listening. */
857
858 if (!serverid_register(messaging_server_id(msg_ctx),
859 FLAG_MSG_GENERAL|FLAG_MSG_SMBD
860 |FLAG_MSG_PRINT_GENERAL
861 |FLAG_MSG_DBWRAP)) {
862 DEBUG(0, ("open_sockets_smbd: Failed to register "
863 "myself in serverid.tdb\n"));
864 return false;
865 }
866
867 /* Listen to messages */
868
869 messaging_register(msg_ctx, NULL, MSG_SHUTDOWN, msg_exit_server);
870 messaging_register(msg_ctx, ev_ctx, MSG_SMB_CONF_UPDATED,
871 smbd_parent_conf_updated);
872 messaging_register(msg_ctx, NULL, MSG_SMB_STAT_CACHE_DELETE,
873 smb_stat_cache_delete);
874 messaging_register(msg_ctx, NULL, MSG_DEBUG, smbd_msg_debug);
875 messaging_register(msg_ctx, ev_ctx, MSG_PRINTER_PCAP,
876 smb_pcap_updated);
877 messaging_register(msg_ctx, NULL, MSG_SMB_BRL_VALIDATE,
878 brl_revalidate);
879 messaging_register(msg_ctx, NULL, MSG_SMB_FORCE_TDIS,
880 smb_parent_force_tdis);
881
882 messaging_register(msg_ctx, NULL,
883 ID_CACHE_DELETE, smbd_parent_id_cache_delete);
884 messaging_register(msg_ctx, NULL,
885 ID_CACHE_KILL, smbd_parent_id_cache_kill);
886
887 #ifdef CLUSTER_SUPPORT
888 if (lp_clustering()) {
889 ctdbd_register_reconfigure(messaging_ctdbd_connection());
890 }
891 #endif
892
893 #ifdef DEVELOPER
894 messaging_register(msg_ctx, NULL, MSG_SMB_INJECT_FAULT,
895 msg_inject_fault);
896 #endif
897
898 if (lp_multicast_dns_register() && (dns_port != 0)) {
899 #ifdef WITH_DNSSD_SUPPORT
900 smbd_setup_mdns_registration(ev_ctx,
901 parent, dns_port);
902 #endif
903 #ifdef WITH_AVAHI_SUPPORT
904 void *avahi_conn;
905
906 avahi_conn = avahi_start_register(ev_ctx,
907 ev_ctx,
908 dns_port);
909 if (avahi_conn == NULL) {
910 DEBUG(10, ("avahi_start_register failed\n"));
911 }
912 #endif
913 }
914
915 return true;
916 }
917
918
919 /*
920 handle stdin becoming readable when we are in --foreground mode
921 */
922 static void smbd_stdin_handler(struct tevent_context *ev,
923 struct tevent_fd *fde,
924 uint16_t flags,
925 void *private_data)
926 {
927 char c;
928 if (read(0, &c, 1) != 1) {
929 /* we have reached EOF on stdin, which means the
930 parent has exited. Shutdown the server */
931 exit_server_cleanly("EOF on stdin");
932 }
933 }
934
935 static void smbd_parent_loop(struct tevent_context *ev_ctx,
936 struct smbd_parent_context *parent)
937 {
938 /* now accept incoming connections - forking a new process
939 for each incoming connection */
940 DEBUG(2,("waiting for connections\n"));
941 while (1) {
942 int ret;
943 TALLOC_CTX *frame = talloc_stackframe();
944
945 ret = tevent_loop_once(ev_ctx);
946 if (ret != 0) {
947 exit_server_cleanly("tevent_loop_once() error");
948 }
949
950 TALLOC_FREE(frame);
951 } /* end while 1 */
952
953 /* NOTREACHED return True; */
954 }
955
956
957 /****************************************************************************
958 Initialise connect, service and file structs.
959 ****************************************************************************/
960
961 static bool init_structs(void )
962 {
963 /*
964 * Set the machine NETBIOS name if not already
965 * set from the config file.
966 */
967
968 if (!init_names())
969 return False;
970
971 if (!secrets_init())
972 return False;
973
974 return True;
975 }
976
977 static void smbd_parent_sig_term_handler(struct tevent_context *ev,
978 struct tevent_signal *se,
979 int signum,
980 int count,
981 void *siginfo,
982 void *private_data)
983 {
984 exit_server_cleanly("termination signal");
985 }
986
987 static void smbd_parent_sig_hup_handler(struct tevent_context *ev,
988 struct tevent_signal *se,
989 int signum,
990 int count,
991 void *siginfo,
992 void *private_data)
993 {
994 struct smbd_parent_context *parent =
995 talloc_get_type_abort(private_data,
996 struct smbd_parent_context);
997
998 change_to_root_user();
999 DEBUG(1,("parent: Reloading services after SIGHUP\n"));
1000 reload_services(NULL, NULL, false);
1001
1002 printing_subsystem_update(parent->ev_ctx, parent->msg_ctx, true);
1003 }
1004
1005 /****************************************************************************
1006 main program.
1007 ****************************************************************************/
1008
1009 /* Declare prototype for build_options() to avoid having to run it through
1010 mkproto.h. Mixing $(builddir) and $(srcdir) source files in the current
1011 prototype generation system is too complicated. */
1012
1013 extern void build_options(bool screen);
1014
1015 int main(int argc,const char *argv[])
1016 {
1017 /* shall I run as a daemon */
1018 bool is_daemon = false;
1019 bool interactive = false;
1020 bool Fork = true;
1021 bool no_process_group = false;
1022 bool log_stdout = false;
1023 char *ports = NULL;
1024 char *profile_level = NULL;
1025 int opt;
1026 poptContext pc;
1027 bool print_build_options = False;
1028 enum {
1029 OPT_DAEMON = 1000,
1030 OPT_INTERACTIVE,
1031 OPT_FORK,
1032 OPT_NO_PROCESS_GROUP,
1033 OPT_LOG_STDOUT
1034 };
1035 struct poptOption long_options[] = {
1036 POPT_AUTOHELP
1037 {"daemon", 'D', POPT_ARG_NONE, NULL, OPT_DAEMON, "Become a daemon (default)" },
1038 {"interactive", 'i', POPT_ARG_NONE, NULL, OPT_INTERACTIVE, "Run interactive (not a daemon)"},
1039 {"foreground", 'F', POPT_ARG_NONE, NULL, OPT_FORK, "Run daemon in foreground (for daemontools, etc.)" },
1040 {"no-process-group", '\0', POPT_ARG_NONE, NULL, OPT_NO_PROCESS_GROUP, "Don't create a new process group" },
1041 {"log-stdout", 'S', POPT_ARG_NONE, NULL, OPT_LOG_STDOUT, "Log to stdout" },
1042 {"build-options", 'b', POPT_ARG_NONE, NULL, 'b', "Print build options" },
1043 {"port", 'p', POPT_ARG_STRING, &ports, 0, "Listen on the specified ports"},
1044 {"profiling-level", 'P', POPT_ARG_STRING, &profile_level, 0, "Set profiling level","PROFILE_LEVEL"},
1045 POPT_COMMON_SAMBA
1046 POPT_COMMON_DYNCONFIG
1047 POPT_TABLEEND
1048 };
1049 struct smbd_parent_context *parent = NULL;
1050 TALLOC_CTX *frame;
1051 NTSTATUS status;
1052 struct tevent_context *ev_ctx;
1053 struct messaging_context *msg_ctx;
1054 struct server_id server_id;
1055 struct tevent_signal *se;
1056 char *np_dir = NULL;
1057 static const struct smbd_shim smbd_shim_fns =
1058 {
1059 .cancel_pending_lock_requests_by_fid = smbd_cancel_pending_lock_requests_by_fid,
1060 .send_stat_cache_delete_message = smbd_send_stat_cache_delete_message,
1061 .change_to_root_user = smbd_change_to_root_user,
1062
1063 .contend_level2_oplocks_begin = smbd_contend_level2_oplocks_begin,
1064 .contend_level2_oplocks_end = smbd_contend_level2_oplocks_end,
1065
1066 .become_root = smbd_become_root,
1067 .unbecome_root = smbd_unbecome_root,
1068
1069 .exit_server = smbd_exit_server,
1070 .exit_server_cleanly = smbd_exit_server_cleanly,
1071 };
1072
1073 /*
1074 * Do this before any other talloc operation
1075 */
1076 talloc_enable_null_tracking();
1077 frame = talloc_stackframe();
1078
1079 setup_logging(argv[0], DEBUG_DEFAULT_STDOUT);
1080
1081 load_case_tables();
1082
1083 set_smbd_shim(&smbd_shim_fns);
1084
1085 smbd_init_globals();
1086
1087 TimeInit();
1088
1089 #ifdef HAVE_SET_AUTH_PARAMETERS
1090 set_auth_parameters(argc,argv);
1091 #endif
1092
1093 pc = poptGetContext("smbd", argc, argv, long_options, 0);
1094 while((opt = poptGetNextOpt(pc)) != -1) {
1095 switch (opt) {
1096 case OPT_DAEMON:
1097 is_daemon = true;
1098 break;
1099 case OPT_INTERACTIVE:
1100 interactive = true;
1101 break;
1102 case OPT_FORK:
1103 Fork = false;
1104 break;
1105 case OPT_NO_PROCESS_GROUP:
1106 no_process_group = true;
1107 break;
1108 case OPT_LOG_STDOUT:
1109 log_stdout = true;
1110 break;
1111 case 'b':
1112 print_build_options = True;
1113 break;
1114 default:
1115 d_fprintf(stderr, "\nInvalid option %s: %s\n\n",
1116 poptBadOption(pc, 0), poptStrerror(opt));
1117 poptPrintUsage(pc, stderr, 0);
1118 exit(1);
1119 }
1120 }
1121 poptFreeContext(pc);
1122
1123 if (interactive) {
1124 Fork = False;
1125 log_stdout = True;
1126 }
1127
1128 if (log_stdout) {
1129 setup_logging(argv[0], DEBUG_STDOUT);
1130 } else {
1131 setup_logging(argv[0], DEBUG_FILE);
1132 }
1133
1134 if (print_build_options) {
1135 build_options(True); /* Display output to screen as well as debug */
1136 exit(0);
1137 }
1138
1139 #ifdef HAVE_SETLUID
1140 /* needed for SecureWare on SCO */
1141 setluid(0);
1142 #endif
1143
1144 set_remote_machine_name("smbd", False);
1145
1146 if (interactive && (DEBUGLEVEL >= 9)) {
1147 talloc_enable_leak_report();
1148 }
1149
1150 if (log_stdout && Fork) {
1151 DEBUG(0,("ERROR: Can't log to stdout (-S) unless daemon is in foreground (-F) or interactive (-i)\n"));
1152 exit(1);
1153 }
1154
1155 /* we want to re-seed early to prevent time delays causing
1156 client problems at a later date. (tridge) */
1157 generate_random_buffer(NULL, 0);
1158
1159 /* get initial effective uid and gid */
1160 sec_init();
1161
1162 /* make absolutely sure we run as root - to handle cases where people
1163 are crazy enough to have it setuid */
1164 gain_root_privilege();
1165 gain_root_group_privilege();
1166
1167 fault_setup();
1168 dump_core_setup("smbd", lp_logfile(talloc_tos()));
1169
1170 /* we are never interested in SIGPIPE */
1171 BlockSignals(True,SIGPIPE);
1172
1173 #if defined(SIGFPE)
1174 /* we are never interested in SIGFPE */
1175 BlockSignals(True,SIGFPE);
1176 #endif
1177
1178 #if defined(SIGUSR2)
1179 /* We are no longer interested in USR2 */
1180 BlockSignals(True,SIGUSR2);
1181 #endif
1182
1183 /* POSIX demands that signals are inherited. If the invoking process has
1184 * these signals masked, we will have problems, as we won't recieve them. */
1185 BlockSignals(False, SIGHUP);
1186 BlockSignals(False, SIGUSR1);
1187 BlockSignals(False, SIGTERM);
1188
1189 /* Ensure we leave no zombies until we
1190 * correctly set up child handling below. */
1191
1192 CatchChild();
1193
1194 /* we want total control over the permissions on created files,
1195 so set our umask to 0 */
1196 umask(0);
1197
1198 reopen_logs();
1199
1200 DEBUG(0,("smbd version %s started.\n", samba_version_string()));
1201 DEBUGADD(0,("%s\n", COPYRIGHT_STARTUP_MESSAGE));
1202
1203 DEBUG(2,("uid=%d gid=%d euid=%d egid=%d\n",
1204 (int)getuid(),(int)getgid(),(int)geteuid(),(int)getegid()));
1205
1206 /* Output the build options to the debug log */
1207 build_options(False);
1208
1209 if (sizeof(uint16) < 2 || sizeof(uint32) < 4) {
1210 DEBUG(0,("ERROR: Samba is not configured correctly for the word size on your machine\n"));
1211 exit(1);
1212 }
1213
1214 if (!lp_load_initial_only(get_dyn_CONFIGFILE())) {
1215 DEBUG(0, ("error opening config file '%s'\n", get_dyn_CONFIGFILE()));
1216 exit(1);
1217 }
1218
1219 /* Init the security context and global current_user */
1220 init_sec_ctx();
1221
1222 /*
1223 * Initialize the event context. The event context needs to be
1224 * initialized before the messaging context, cause the messaging
1225 * context holds an event context.
1226 * FIXME: This should be s3_tevent_context_init()
1227 */
1228 ev_ctx = server_event_context();
1229 if (ev_ctx == NULL) {
1230 exit(1);
1231 }
1232
1233 /*
1234 * Init the messaging context
1235 * FIXME: This should only call messaging_init()
1236 */
1237 msg_ctx = server_messaging_context();
1238 if (msg_ctx == NULL) {
1239 exit(1);
1240 }
1241
1242 /*
1243 * Reloading of the printers will not work here as we don't have a
1244 * server info and rpc services set up. It will be called later.
1245 */
1246 if (!reload_services(NULL, NULL, false)) {
1247 exit(1);
1248 }
1249
1250 if (lp_server_role() == ROLE_ACTIVE_DIRECTORY_DC
1251 && !lp_parm_bool(-1, "server role check", "inhibit", false)) {
1252 DEBUG(0, ("server role = 'active directory domain controller' not compatible with running smbd standalone. \n"));
1253 DEBUGADD(0, ("You should start 'samba' instead, and it will control starting smbd if required\n"));
1254 exit(1);
1255 }
1256
1257 /* ...NOTE... Log files are working from this point! */
1258
1259 DEBUG(3,("loaded services\n"));
1260
1261 init_structs();
1262
1263 #ifdef WITH_PROFILE
1264 if (!profile_setup(msg_ctx, False)) {
1265 DEBUG(0,("ERROR: failed to setup profiling\n"));
1266 return -1;
1267 }
1268 if (profile_level != NULL) {
1269 int pl = atoi(profile_level);
1270 struct server_id src;
1271
1272 DEBUG(1, ("setting profiling level: %s\n",profile_level));
1273 src.pid = getpid();
1274 set_profile_level(pl, src);
1275 }
1276 #endif
1277
1278 if (!is_daemon && !is_a_socket(0)) {
1279 if (!interactive)
1280 DEBUG(0,("standard input is not a socket, assuming -D option\n"));
1281
1282 /*
1283 * Setting is_daemon here prevents us from eventually calling
1284 * the open_sockets_inetd()
1285 */
1286
1287 is_daemon = True;
1288 }
1289
1290 if (is_daemon && !interactive) {
1291 DEBUG( 3, ( "Becoming a daemon.\n" ) );
1292 become_daemon(Fork, no_process_group, log_stdout);
1293 }
1294
1295 set_my_unique_id(serverid_get_random_unique_id());
1296
1297 #if HAVE_SETPGID
1298 /*
1299 * If we're interactive we want to set our own process group for
1300 * signal management.
1301 */
1302 if (interactive && !no_process_group)
1303 setpgid( (pid_t)0, (pid_t)0);
1304 #endif
1305
1306 if (!directory_exist(lp_lockdir()))
1307 mkdir(lp_lockdir(), 0755);
1308
1309 if (!directory_exist(lp_piddir()))
1310 mkdir(lp_piddir(), 0755);
1311
1312 if (is_daemon)
1313 pidfile_create(lp_piddir(), "smbd");
1314
1315 status = reinit_after_fork(msg_ctx,
1316 ev_ctx,
1317 false);
1318 if (!NT_STATUS_IS_OK(status)) {
1319 DEBUG(0,("reinit_after_fork() failed\n"));
1320 exit(1);
1321 }
1322
1323 if (!interactive) {
1324 /*
1325 * Do not initialize the parent-child-pipe before becoming a
1326 * daemon: this is used to detect a died parent in the child
1327 * process.
1328 */
1329 status = init_before_fork();
1330 if (!NT_STATUS_IS_OK(status)) {
1331 DEBUG(0, ("init_before_fork failed: %s\n", nt_errstr(status)));
1332 exit(1);
1333 }
1334 }
1335
1336 parent = talloc_zero(ev_ctx, struct smbd_parent_context);
1337 if (!parent) {
1338 exit_server("talloc(struct smbd_parent_context) failed");
1339 }
1340 parent->interactive = interactive;
1341 parent->ev_ctx = ev_ctx;
1342 parent->msg_ctx = msg_ctx;
1343 am_parent = parent;
1344
1345 se = tevent_add_signal(parent->ev_ctx,
1346 parent,
1347 SIGTERM, 0,
1348 smbd_parent_sig_term_handler,
1349 parent);
1350 if (!se) {
1351 exit_server("failed to setup SIGTERM handler");
1352 }
1353 se = tevent_add_signal(parent->ev_ctx,
1354 parent,
1355 SIGHUP, 0,
1356 smbd_parent_sig_hup_handler,
1357 parent);
1358 if (!se) {
1359 exit_server("failed to setup SIGHUP handler");
1360 }
1361
1362 /* Setup all the TDB's - including CLEAR_IF_FIRST tdb's. */
1363
1364 if (smbd_memcache() == NULL) {
1365 exit(1);
1366 }
1367
1368 memcache_set_global(smbd_memcache());
1369
1370 /* Initialise the password backed before the global_sam_sid
1371 to ensure that we fetch from ldap before we make a domain sid up */
1372
1373 if(!initialize_password_db(false, ev_ctx))
1374 exit(1);
1375
1376 if (!secrets_init()) {
1377 DEBUG(0, ("ERROR: smbd can not open secrets.tdb\n"));
1378 exit(1);
1379 }
1380
1381 if (lp_server_role() == ROLE_DOMAIN_BDC || lp_server_role() == ROLE_DOMAIN_PDC) {
1382 struct loadparm_context *lp_ctx = loadparm_init_s3(NULL, loadparm_s3_helpers());
1383 if (!open_schannel_session_store(NULL, lp_ctx)) {
1384 DEBUG(0,("ERROR: Samba cannot open schannel store for secured NETLOGON operations.\n"));
1385 exit(1);
1386 }
1387 TALLOC_FREE(lp_ctx);
1388 }
1389
1390 if(!get_global_sam_sid()) {
1391 DEBUG(0,("ERROR: Samba cannot create a SAM SID.\n"));
1392 exit(1);
1393 }
1394
1395 server_id = messaging_server_id(msg_ctx);
1396 status = smbXsrv_version_global_init(&server_id);
1397 if (!NT_STATUS_IS_OK(status)) {
1398 exit(1);
1399 }
1400
1401 status = smbXsrv_session_global_init();
1402 if (!NT_STATUS_IS_OK(status)) {
1403 exit(1);
1404 }
1405
1406 if (!connections_init(true)) {
1407 exit(1);
1408 }
1409 status = smbXsrv_tcon_global_init();
1410 if (!NT_STATUS_IS_OK(status)) {
1411 exit(1);
1412 }
1413
1414 if (!locking_init())
1415 exit(1);
1416
1417 if (!messaging_tdb_parent_init(ev_ctx)) {
1418 exit(1);
1419 }
1420
1421 if (!smbd_parent_notify_init(NULL, msg_ctx, ev_ctx)) {
1422 exit(1);
1423 }
1424
1425 if (!serverid_parent_init(ev_ctx)) {
1426 exit(1);
1427 }
1428
1429 if (!W_ERROR_IS_OK(registry_init_full()))
1430 exit(1);
1431
1432 /* Open the share_info.tdb here, so we don't have to open
1433 after the fork on every single connection. This is a small
1434 performance improvment and reduces the total number of system
1435 fds used. */
1436 if (!share_info_db_init()) {
1437 DEBUG(0,("ERROR: failed to load share info db.\n"));
1438 exit(1);
1439 }
1440
1441 status = init_system_session_info();
1442 if (!NT_STATUS_IS_OK(status)) {
1443 DEBUG(1, ("ERROR: failed to setup system user info: %s.\n",
1444 nt_errstr(status)));
1445 return -1;
1446 }
1447
1448 if (!init_guest_info()) {
1449 DEBUG(0,("ERROR: failed to setup guest info.\n"));
1450 return -1;
1451 }
1452
1453 if (!file_init_global()) {
1454 DEBUG(0, ("ERROR: file_init_global() failed\n"));
1455 return -1;
1456 }
1457 status = smbXsrv_open_global_init();
1458 if (!NT_STATUS_IS_OK(status)) {
1459 exit(1);
1460 }
1461
1462 /* This MUST be done before start_epmd() because otherwise
1463 * start_epmd() forks and races against dcesrv_ep_setup() to
1464 * call directory_create_or_exist() */
1465 if (!directory_create_or_exist(lp_ncalrpc_dir(), geteuid(), 0755)) {
1466 DEBUG(0, ("Failed to create pipe directory %s - %s\n",
1467 lp_ncalrpc_dir(), strerror(errno)));
1468 return -1;
1469 }
1470
1471 np_dir = talloc_asprintf(talloc_tos(), "%s/np", lp_ncalrpc_dir());
1472 if (!np_dir) {
1473 DEBUG(0, ("%s: Out of memory\n", __location__));
1474 return -1;
1475 }
1476
1477 if (!directory_create_or_exist(np_dir, geteuid(), 0700)) {
1478 DEBUG(0, ("Failed to create pipe directory %s - %s\n",
1479 np_dir, strerror(errno)));
1480 return -1;
1481 }
1482
1483 if (is_daemon && !interactive) {
1484 if (rpc_epmapper_daemon() == RPC_DAEMON_FORK) {
1485 start_epmd(ev_ctx, msg_ctx);
1486 }
1487 }
1488
1489 if (!dcesrv_ep_setup(ev_ctx, msg_ctx)) {
1490 exit(1);
1491 }
1492
1493 /* only start other daemons if we are running as a daemon
1494 * -- bad things will happen if smbd is launched via inetd
1495 * and we fork a copy of ourselves here */
1496 if (is_daemon && !interactive) {
1497
1498 if (rpc_lsasd_daemon() == RPC_DAEMON_FORK) {
1499 start_lsasd(ev_ctx, msg_ctx);
1500 }
1501
1502 if (!lp__disable_spoolss() &&
1503 (rpc_spoolss_daemon() != RPC_DAEMON_DISABLED)) {
1504 bool bgq = lp_parm_bool(-1, "smbd", "backgroundqueue", true);
1505
1506 if (!printing_subsystem_init(ev_ctx, msg_ctx, true, bgq)) {
1507 exit(1);
1508 }
1509 }
1510 } else if (!lp__disable_spoolss() &&
1511 (rpc_spoolss_daemon() != RPC_DAEMON_DISABLED)) {
1512 if (!printing_subsystem_init(ev_ctx, msg_ctx, false, false)) {
1513 exit(1);
1514 }
1515 }
1516
1517 if (!is_daemon) {
1518 int sock;
1519
1520 /* inetd mode */
1521 TALLOC_FREE(frame);
1522
1523 /* Started from inetd. fd 0 is the socket. */
1524 /* We will abort gracefully when the client or remote system
1525 goes away */
1526 sock = dup(0);
1527
1528 /* close stdin, stdout (if not logging to it), but not stderr */
1529 close_low_fds(true, !debug_get_output_is_stdout(), false);
1530
1531 #ifdef HAVE_ATEXIT
1532 atexit(killkids);
1533 #endif
1534
1535 /* Stop zombies */
1536 smbd_setup_sig_chld_handler(parent);
1537
1538 smbd_process(ev_ctx, msg_ctx, sock, true);
1539
1540 exit_server_cleanly(NULL);
1541 return(0);
1542 }
1543
1544 if (!open_sockets_smbd(parent, ev_ctx, msg_ctx, ports))
1545 exit_server("open_sockets_smbd() failed");
1546
1547 /* do a printer update now that all messaging has been set up,
1548 * before we allow clients to start connecting */
1549 if (!lp__disable_spoolss() &&
1550 (rpc_spoolss_daemon() != RPC_DAEMON_DISABLED)) {
1551 printing_subsystem_update(ev_ctx, msg_ctx, false);
1552 }
1553
1554 TALLOC_FREE(frame);
1555 /* make sure we always have a valid stackframe */
1556 frame = talloc_stackframe();
1557
1558 if (!Fork) {
1559 /* if we are running in the foreground then look for
1560 EOF on stdin, and exit if it happens. This allows
1561 us to die if the parent process dies
1562 */
1563 tevent_add_fd(ev_ctx, parent, 0, TEVENT_FD_READ, smbd_stdin_handler, NULL);
1564 }
1565
1566 smbd_parent_loop(ev_ctx, parent);
1567
1568 exit_server_cleanly(NULL);
1569 TALLOC_FREE(frame);
1570 return(0);
1571 }
reg import