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
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.
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.
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/>.
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"
32 #include "../lib/util/memcache.h"
33 #include "ctdbd_conn.h"
34 #include "util_cluster.h"
35 #include "printing/queue_process.h"
36 #include "rpc_server/rpc_service_setup.h"
37 #include "rpc_server/rpc_config.h"
42 #include "smbprofile.h"
43 #include "lib/id_cache.h"
44 #include "lib/param/param.h"
45 #include "lib/background.h"
46 #include "lib/conn_tdb.h"
47 #include "../lib/util/pidfile.h"
48 #include "lib/smbd_shim.h"
49 #include "scavenger.h"
50 #include "locking/leases_db.h"
51 #include "smbd/notifyd/notifyd.h"
52 #include "smbd/smbd_cleanupd.h"
53 #include "lib/util/sys_rw.h"
54 #include "cleanupdb.h"
56 #ifdef CLUSTER_SUPPORT
57 #include "ctdb_protocol.h"
60 struct smbd_open_socket;
61 struct smbd_child_pid;
63 struct smbd_parent_context {
66 struct tevent_context *ev_ctx;
67 struct messaging_context *msg_ctx;
69 /* the list of listening sockets */
70 struct smbd_open_socket *sockets;
72 /* the list of current child processes */
73 struct smbd_child_pid *children;
76 struct server_id cleanupd;
77 struct server_id notifyd;
79 struct tevent_timer *cleanup_te;
82 struct smbd_open_socket {
83 struct smbd_open_socket *prev, *next;
84 struct smbd_parent_context *parent;
86 struct tevent_fd *fde;
89 struct smbd_child_pid {
90 struct smbd_child_pid *prev, *next;
94 extern void start_epmd(struct tevent_context *ev_ctx,
95 struct messaging_context *msg_ctx);
97 extern void start_lsasd(struct tevent_context *ev_ctx,
98 struct messaging_context *msg_ctx);
100 extern void start_fssd(struct tevent_context *ev_ctx,
101 struct messaging_context *msg_ctx);
103 extern void start_mdssd(struct tevent_context *ev_ctx,
104 struct messaging_context *msg_ctx);
106 /*******************************************************************
107 What to do when smb.conf is updated.
108 ********************************************************************/
110 static void smbd_parent_conf_updated(struct messaging_context *msg,
113 struct server_id server_id,
116 struct tevent_context *ev_ctx =
117 talloc_get_type_abort(private_data, struct tevent_context);
119 DEBUG(10,("smbd_parent_conf_updated: Got message saying smb.conf was "
120 "updated. Reloading.\n"));
121 change_to_root_user();
122 reload_services(NULL, NULL, false);
123 printing_subsystem_update(ev_ctx, msg, false);
126 /*******************************************************************
127 Delete a statcache entry.
128 ********************************************************************/
130 static void smb_stat_cache_delete(struct messaging_context *msg,
133 struct server_id server_id,
136 const char *name = (const char *)data->data;
137 DEBUG(10,("smb_stat_cache_delete: delete name %s\n", name));
138 stat_cache_delete(name);
141 /****************************************************************************
142 Send a SIGTERM to our process group.
143 *****************************************************************************/
145 static void killkids(void)
147 if(am_parent) kill(0,SIGTERM);
150 static void msg_exit_server(struct messaging_context *msg,
153 struct server_id server_id,
156 DEBUG(3, ("got a SHUTDOWN message\n"));
157 exit_server_cleanly(NULL);
161 static void msg_inject_fault(struct messaging_context *msg,
164 struct server_id src,
168 struct server_id_buf tmp;
170 if (data->length != sizeof(sig)) {
171 DEBUG(0, ("Process %s sent bogus signal injection request\n",
172 server_id_str_buf(src, &tmp)));
176 sig = *(int *)data->data;
178 exit_server("internal error injected");
183 DEBUG(0, ("Process %s requested injection of signal %d (%s)\n",
184 server_id_str_buf(src, &tmp), sig, strsignal(sig)));
186 DEBUG(0, ("Process %s requested injection of signal %d\n",
187 server_id_str_buf(src, &tmp), sig));
192 #endif /* DEVELOPER */
194 static NTSTATUS messaging_send_to_children(struct messaging_context *msg_ctx,
195 uint32_t msg_type, DATA_BLOB* data)
198 struct smbd_parent_context *parent = am_parent;
199 struct smbd_child_pid *child;
201 if (parent == NULL) {
202 return NT_STATUS_INTERNAL_ERROR;
205 for (child = parent->children; child != NULL; child = child->next) {
206 status = messaging_send(parent->msg_ctx,
207 pid_to_procid(child->pid),
209 if (!NT_STATUS_IS_OK(status)) {
210 DBG_DEBUG("messaging_send(%d) failed: %s\n",
211 (int)child->pid, nt_errstr(status));
217 static void smb_parent_send_to_children(struct messaging_context *ctx,
220 struct server_id srv_id,
223 messaging_send_to_children(ctx, msg_type, msg_data);
227 * Parent smbd process sets its own debug level first and then
228 * sends a message to all the smbd children to adjust their debug
229 * level to that of the parent.
232 static void smbd_msg_debug(struct messaging_context *msg_ctx,
235 struct server_id server_id,
238 debug_message(msg_ctx, private_data, MSG_DEBUG, server_id, data);
240 messaging_send_to_children(msg_ctx, MSG_DEBUG, data);
243 static void smbd_parent_id_cache_kill(struct messaging_context *msg_ctx,
246 struct server_id server_id,
249 const char *msg = (data && data->data)
250 ? (const char *)data->data : "<NULL>";
251 struct id_cache_ref id;
253 if (!id_cache_ref_parse(msg, &id)) {
254 DEBUG(0, ("Invalid ?ID: %s\n", msg));
258 id_cache_delete_from_cache(&id);
260 messaging_send_to_children(msg_ctx, msg_type, data);
263 static void smbd_parent_id_cache_delete(struct messaging_context *ctx,
266 struct server_id srv_id,
269 id_cache_delete_message(ctx, data, msg_type, srv_id, msg_data);
271 messaging_send_to_children(ctx, msg_type, msg_data);
274 #ifdef CLUSTER_SUPPORT
275 static int smbd_parent_ctdb_reconfigured(
276 uint32_t src_vnn, uint32_t dst_vnn, uint64_t dst_srvid,
277 const uint8_t *msg, size_t msglen, void *private_data)
279 struct messaging_context *msg_ctx = talloc_get_type_abort(
280 private_data, struct messaging_context);
282 DEBUG(10, ("Got %s message\n", (dst_srvid == CTDB_SRVID_RECONFIGURE)
283 ? "cluster reconfigure" : "SAMBA_NOTIFY"));
286 * Someone from the family died, validate our locks
290 messaging_send_buf(msg_ctx, am_parent->cleanupd,
291 MSG_SMB_BRL_VALIDATE, NULL, 0);
298 static void add_child_pid(struct smbd_parent_context *parent,
301 struct smbd_child_pid *child;
303 child = talloc_zero(parent, struct smbd_child_pid);
305 DEBUG(0, ("Could not add child struct -- malloc failed\n"));
309 DLIST_ADD(parent->children, child);
310 parent->num_children += 1;
313 static void smb_tell_num_children(struct messaging_context *ctx, void *data,
314 uint32_t msg_type, struct server_id srv_id,
317 uint8_t buf[sizeof(uint32_t)];
320 SIVAL(buf, 0, am_parent->num_children);
321 messaging_send_buf(ctx, srv_id, MSG_SMB_NUM_CHILDREN,
326 static void notifyd_stopped(struct tevent_req *req);
328 static struct tevent_req *notifyd_req(struct messaging_context *msg_ctx,
329 struct tevent_context *ev)
331 struct tevent_req *req;
332 sys_notify_watch_fn sys_notify_watch = NULL;
333 struct sys_notify_context *sys_notify_ctx = NULL;
335 if (lp_kernel_change_notify()) {
338 if (lp_parm_bool(-1, "notify", "inotify", true)) {
339 sys_notify_watch = inotify_watch;
344 if (lp_parm_bool(-1, "notify", "fam",
345 (sys_notify_watch == NULL))) {
346 sys_notify_watch = fam_watch;
351 if (sys_notify_watch != NULL) {
352 sys_notify_ctx = sys_notify_context_create(msg_ctx, ev);
353 if (sys_notify_ctx == NULL) {
358 req = notifyd_send(msg_ctx, ev, msg_ctx,
359 messaging_ctdbd_connection(),
360 sys_notify_watch, sys_notify_ctx);
362 TALLOC_FREE(sys_notify_ctx);
365 tevent_req_set_callback(req, notifyd_stopped, msg_ctx);
370 static void notifyd_stopped(struct tevent_req *req)
374 ret = notifyd_recv(req);
376 DEBUG(1, ("notifyd stopped: %s\n", strerror(ret)));
379 static bool smbd_notifyd_init(struct messaging_context *msg, bool interactive,
380 struct server_id *ppid)
382 struct tevent_context *ev = messaging_tevent_context(msg);
383 struct tevent_req *req;
388 req = notifyd_req(msg, ev);
389 return (req != NULL);
394 DEBUG(1, ("%s: fork failed: %s\n", __func__,
400 if (am_parent != 0) {
401 add_child_pid(am_parent, pid);
403 *ppid = pid_to_procid(pid);
407 status = smbd_reinit_after_fork(msg, ev, true, "smbd-notifyd");
408 if (!NT_STATUS_IS_OK(status)) {
409 DEBUG(1, ("%s: reinit_after_fork failed: %s\n",
410 __func__, nt_errstr(status)));
414 req = notifyd_req(msg, ev);
418 tevent_req_set_callback(req, notifyd_stopped, msg);
420 /* Block those signals that we are not handling */
421 BlockSignals(True, SIGHUP);
422 BlockSignals(True, SIGUSR1);
424 messaging_send(msg, pid_to_procid(getppid()), MSG_SMB_NOTIFY_STARTED,
427 return tevent_req_poll(req, ev);
430 static void notifyd_init_trigger(struct tevent_req *req);
432 struct notifyd_init_state {
434 struct tevent_context *ev;
435 struct messaging_context *msg;
436 struct server_id *ppid;
439 static struct tevent_req *notifyd_init_send(struct tevent_context *ev,
441 struct messaging_context *msg,
442 struct server_id *ppid)
444 struct tevent_req *req = NULL;
445 struct tevent_req *subreq = NULL;
446 struct notifyd_init_state *state = NULL;
448 req = tevent_req_create(mem_ctx, &state, struct notifyd_init_state);
453 *state = (struct notifyd_init_state) {
459 subreq = tevent_wakeup_send(state, ev, tevent_timeval_current_ofs(1, 0));
460 if (tevent_req_nomem(subreq, req)) {
461 return tevent_req_post(req, ev);
464 tevent_req_set_callback(subreq, notifyd_init_trigger, req);
468 static void notifyd_init_trigger(struct tevent_req *subreq)
470 struct tevent_req *req = tevent_req_callback_data(
471 subreq, struct tevent_req);
472 struct notifyd_init_state *state = tevent_req_data(
473 req, struct notifyd_init_state);
476 DBG_NOTICE("Triggering notifyd startup\n");
478 ok = tevent_wakeup_recv(subreq);
481 tevent_req_error(req, ENOMEM);
485 state->ok = smbd_notifyd_init(state->msg, false, state->ppid);
487 DBG_WARNING("notifyd restarted\n");
488 tevent_req_done(req);
492 DBG_NOTICE("notifyd startup failed, rescheduling\n");
494 subreq = tevent_wakeup_send(state, state->ev,
495 tevent_timeval_current_ofs(1, 0));
496 if (tevent_req_nomem(subreq, req)) {
497 DBG_ERR("scheduling notifyd restart failed, giving up\n");
501 tevent_req_set_callback(subreq, notifyd_init_trigger, req);
505 static bool notifyd_init_recv(struct tevent_req *req)
507 struct notifyd_init_state *state = tevent_req_data(
508 req, struct notifyd_init_state);
513 static void notifyd_started(struct tevent_req *req)
517 ok = notifyd_init_recv(req);
520 DBG_ERR("Failed to restart notifyd, giving up\n");
525 static void cleanupd_stopped(struct tevent_req *req);
527 static bool cleanupd_init(struct messaging_context *msg, bool interactive,
528 struct server_id *ppid)
530 struct tevent_context *ev = messaging_tevent_context(msg);
531 struct server_id parent_id = messaging_server_id(msg);
532 struct tevent_req *req;
542 req = smbd_cleanupd_send(msg, ev, msg, parent_id.pid);
543 *ppid = messaging_server_id(msg);
544 return (req != NULL);
549 DBG_WARNING("pipe failed: %s\n", strerror(errno));
555 DBG_WARNING("fork failed: %s\n", strerror(errno));
564 rwret = sys_read(up_pipe[0], &c, 1);
568 DBG_WARNING("sys_read failed: %s\n", strerror(errno));
572 DBG_WARNING("cleanupd could not start\n");
576 DBG_WARNING("cleanupd returned %d\n", (int)c);
580 DBG_DEBUG("Started cleanupd pid=%d\n", (int)pid);
582 if (am_parent != NULL) {
583 add_child_pid(am_parent, pid);
586 *ppid = pid_to_procid(pid);
592 status = smbd_reinit_after_fork(msg, ev, true, "cleanupd");
593 if (!NT_STATUS_IS_OK(status)) {
594 DBG_WARNING("reinit_after_fork failed: %s\n",
597 sys_write(up_pipe[1], &c, 1);
602 req = smbd_cleanupd_send(msg, ev, msg, parent_id.pid);
604 DBG_WARNING("smbd_cleanupd_send failed\n");
606 sys_write(up_pipe[1], &c, 1);
611 tevent_req_set_callback(req, cleanupd_stopped, msg);
614 rwret = sys_write(up_pipe[1], &c, 1);
618 DBG_WARNING("sys_write failed: %s\n", strerror(errno));
622 DBG_WARNING("sys_write could not write result\n");
626 ok = tevent_req_poll(req, ev);
628 DBG_WARNING("tevent_req_poll returned %s\n", strerror(errno));
633 static void cleanupd_stopped(struct tevent_req *req)
637 status = smbd_cleanupd_recv(req);
638 DBG_WARNING("cleanupd stopped: %s\n", nt_errstr(status));
641 static void cleanupd_init_trigger(struct tevent_req *req);
643 struct cleanup_init_state {
645 struct tevent_context *ev;
646 struct messaging_context *msg;
647 struct server_id *ppid;
650 static struct tevent_req *cleanupd_init_send(struct tevent_context *ev,
652 struct messaging_context *msg,
653 struct server_id *ppid)
655 struct tevent_req *req = NULL;
656 struct tevent_req *subreq = NULL;
657 struct cleanup_init_state *state = NULL;
659 req = tevent_req_create(mem_ctx, &state, struct cleanup_init_state);
664 *state = (struct cleanup_init_state) {
670 subreq = tevent_wakeup_send(state, ev, tevent_timeval_current_ofs(0, 0));
671 if (tevent_req_nomem(subreq, req)) {
672 return tevent_req_post(req, ev);
675 tevent_req_set_callback(subreq, cleanupd_init_trigger, req);
679 static void cleanupd_init_trigger(struct tevent_req *subreq)
681 struct tevent_req *req = tevent_req_callback_data(
682 subreq, struct tevent_req);
683 struct cleanup_init_state *state = tevent_req_data(
684 req, struct cleanup_init_state);
687 DBG_NOTICE("Triggering cleanupd startup\n");
689 ok = tevent_wakeup_recv(subreq);
692 tevent_req_error(req, ENOMEM);
696 state->ok = cleanupd_init(state->msg, false, state->ppid);
698 DBG_WARNING("cleanupd restarted\n");
699 tevent_req_done(req);
703 DBG_NOTICE("cleanupd startup failed, rescheduling\n");
705 subreq = tevent_wakeup_send(state, state->ev,
706 tevent_timeval_current_ofs(1, 0));
707 if (tevent_req_nomem(subreq, req)) {
708 DBG_ERR("scheduling cleanupd restart failed, giving up\n");
712 tevent_req_set_callback(subreq, cleanupd_init_trigger, req);
716 static bool cleanupd_init_recv(struct tevent_req *req)
718 struct cleanup_init_state *state = tevent_req_data(
719 req, struct cleanup_init_state);
725 at most every smbd:cleanuptime seconds (default 20), we scan the BRL
726 and locking database for entries to cleanup. As a side effect this
727 also cleans up dead entries in the connections database (due to the
728 traversal in message_send_all()
730 Using a timer for this prevents a flood of traversals when a large
731 number of clients disconnect at the same time (perhaps due to a
735 static void cleanup_timeout_fn(struct tevent_context *event_ctx,
736 struct tevent_timer *te,
740 struct smbd_parent_context *parent =
741 talloc_get_type_abort(private_data,
742 struct smbd_parent_context);
744 parent->cleanup_te = NULL;
746 messaging_send_buf(parent->msg_ctx, parent->cleanupd,
747 MSG_SMB_UNLOCK, NULL, 0);
750 static void cleanupd_started(struct tevent_req *req)
754 struct smbd_parent_context *parent = tevent_req_callback_data(
755 req, struct smbd_parent_context);
757 ok = cleanupd_init_recv(req);
760 DBG_ERR("Failed to restart cleanupd, giving up\n");
764 status = messaging_send(parent->msg_ctx,
766 MSG_SMB_NOTIFY_CLEANUP,
768 if (!NT_STATUS_IS_OK(status)) {
769 DBG_ERR("messaging_send returned %s\n",
774 static void remove_child_pid(struct smbd_parent_context *parent,
776 bool unclean_shutdown)
778 struct smbd_child_pid *child;
782 for (child = parent->children; child != NULL; child = child->next) {
783 if (child->pid == pid) {
784 struct smbd_child_pid *tmp = child;
785 DLIST_REMOVE(parent->children, child);
787 parent->num_children -= 1;
793 /* not all forked child processes are added to the children list */
794 DEBUG(2, ("Could not find child %d -- ignoring\n", (int)pid));
798 if (pid == procid_to_pid(&parent->cleanupd)) {
799 struct tevent_req *req;
801 server_id_set_disconnected(&parent->cleanupd);
803 DBG_WARNING("Restarting cleanupd\n");
804 req = cleanupd_init_send(messaging_tevent_context(parent->msg_ctx),
809 DBG_ERR("Failed to restart cleanupd\n");
812 tevent_req_set_callback(req, cleanupd_started, parent);
816 if (pid == procid_to_pid(&parent->notifyd)) {
817 struct tevent_req *req;
818 struct tevent_context *ev = messaging_tevent_context(
821 server_id_set_disconnected(&parent->notifyd);
823 DBG_WARNING("Restarting notifyd\n");
824 req = notifyd_init_send(ev,
829 DBG_ERR("Failed to restart notifyd\n");
832 tevent_req_set_callback(req, notifyd_started, parent);
836 ok = cleanupdb_store_child(pid, unclean_shutdown);
838 DBG_ERR("cleanupdb_store_child failed\n");
842 if (!server_id_is_disconnected(&parent->cleanupd)) {
843 status = messaging_send(parent->msg_ctx,
845 MSG_SMB_NOTIFY_CLEANUP,
847 if (!NT_STATUS_IS_OK(status)) {
848 DBG_ERR("messaging_send returned %s\n",
853 if (unclean_shutdown) {
854 /* a child terminated uncleanly so tickle all
855 processes to see if they can grab any of the
858 DEBUG(3,(__location__ " Unclean shutdown of pid %u\n",
860 if (parent->cleanup_te == NULL) {
861 /* call the cleanup timer, but not too often */
862 int cleanup_time = lp_parm_int(-1, "smbd", "cleanuptime", 20);
863 parent->cleanup_te = tevent_add_timer(parent->ev_ctx,
865 timeval_current_ofs(cleanup_time, 0),
868 DEBUG(1,("Scheduled cleanup of brl and lock database after unclean shutdown\n"));
873 /****************************************************************************
874 Have we reached the process limit ?
875 ****************************************************************************/
877 static bool allowable_number_of_smbd_processes(struct smbd_parent_context *parent)
879 int max_processes = lp_max_smbd_processes();
884 return parent->num_children < max_processes;
887 static void smbd_sig_chld_handler(struct tevent_context *ev,
888 struct tevent_signal *se,
896 struct smbd_parent_context *parent =
897 talloc_get_type_abort(private_data,
898 struct smbd_parent_context);
900 while ((pid = waitpid(-1, &status, WNOHANG)) > 0) {
901 bool unclean_shutdown = False;
903 /* If the child terminated normally, assume
904 it was an unclean shutdown unless the
907 if (WIFEXITED(status)) {
908 unclean_shutdown = WEXITSTATUS(status);
910 /* If the child terminated due to a signal
911 we always assume it was unclean.
913 if (WIFSIGNALED(status)) {
914 unclean_shutdown = True;
916 remove_child_pid(parent, pid, unclean_shutdown);
920 static void smbd_setup_sig_chld_handler(struct smbd_parent_context *parent)
922 struct tevent_signal *se;
924 se = tevent_add_signal(parent->ev_ctx,
925 parent, /* mem_ctx */
927 smbd_sig_chld_handler,
930 exit_server("failed to setup SIGCHLD handler");
934 static void smbd_open_socket_close_fn(struct tevent_context *ev,
935 struct tevent_fd *fde,
939 /* this might be the socket_wrapper swrap_close() */
943 static void smbd_accept_connection(struct tevent_context *ev,
944 struct tevent_fd *fde,
948 struct smbd_open_socket *s = talloc_get_type_abort(private_data,
949 struct smbd_open_socket);
950 struct messaging_context *msg_ctx = s->parent->msg_ctx;
951 struct sockaddr_storage addr;
952 socklen_t in_addrlen = sizeof(addr);
956 fd = accept(s->fd, (struct sockaddr *)(void *)&addr,&in_addrlen);
957 if (fd == -1 && errno == EINTR)
961 DEBUG(0,("accept: %s\n",
966 if (s->parent->interactive) {
967 reinit_after_fork(msg_ctx, ev, true, NULL);
968 smbd_process(ev, msg_ctx, fd, true);
969 exit_server_cleanly("end of interactive mode");
973 if (!allowable_number_of_smbd_processes(s->parent)) {
980 NTSTATUS status = NT_STATUS_OK;
983 * Can't use TALLOC_FREE here. Nulling out the argument to it
984 * would overwrite memory we've just freed.
986 talloc_free(s->parent);
989 /* Stop zombies, the parent explicitly handles
990 * them, counting worker smbds. */
993 status = smbd_reinit_after_fork(msg_ctx, ev, true, NULL);
994 if (!NT_STATUS_IS_OK(status)) {
995 if (NT_STATUS_EQUAL(status,
996 NT_STATUS_TOO_MANY_OPENED_FILES)) {
997 DEBUG(0,("child process cannot initialize "
998 "because too many files are open\n"));
1001 if (lp_clustering() &&
1003 status, NT_STATUS_INTERNAL_DB_ERROR) ||
1005 status, NT_STATUS_CONNECTION_REFUSED))) {
1006 DEBUG(1, ("child process cannot initialize "
1007 "because connection to CTDB "
1009 nt_errstr(status)));
1013 DEBUG(0,("reinit_after_fork() failed\n"));
1014 smb_panic("reinit_after_fork() failed");
1017 smbd_process(ev, msg_ctx, fd, false);
1019 exit_server_cleanly("end of child");
1024 DEBUG(0,("smbd_accept_connection: fork() failed: %s\n",
1028 /* The parent doesn't need this socket */
1031 /* Sun May 6 18:56:14 2001 ackley@cs.unm.edu:
1032 Clear the closed fd info out of server_fd --
1033 and more importantly, out of client_fd in
1034 util_sock.c, to avoid a possible
1035 getpeername failure if we reopen the logs
1036 and use %I in the filename.
1040 add_child_pid(s->parent, pid);
1043 /* Force parent to check log size after
1044 * spawning child. Fix from
1045 * klausr@ITAP.Physik.Uni-Stuttgart.De. The
1046 * parent smbd will log to logserver.smb. It
1047 * writes only two messages for each child
1048 * started/finished. But each child writes,
1049 * say, 50 messages also in logserver.smb,
1050 * begining with the debug_count of the
1051 * parent, before the child opens its own log
1052 * file logserver.client. In a worst case
1053 * scenario the size of logserver.smb would be
1054 * checked after about 50*50=2500 messages
1057 force_check_log_size();
1060 static bool smbd_open_one_socket(struct smbd_parent_context *parent,
1061 struct tevent_context *ev_ctx,
1062 const struct sockaddr_storage *ifss,
1065 struct smbd_open_socket *s;
1067 s = talloc(parent, struct smbd_open_socket);
1073 s->fd = open_socket_in(SOCK_STREAM,
1075 parent->sockets == NULL ? 0 : 2,
1079 DEBUG(0,("smbd_open_one_socket: open_socket_in: "
1080 "%s\n", strerror(errno)));
1083 * We ignore an error here, as we've done before
1088 /* ready to listen */
1089 set_socket_options(s->fd, "SO_KEEPALIVE");
1090 set_socket_options(s->fd, lp_socket_options());
1092 /* Set server socket to
1093 * non-blocking for the accept. */
1094 set_blocking(s->fd, False);
1096 if (listen(s->fd, SMBD_LISTEN_BACKLOG) == -1) {
1097 DEBUG(0,("smbd_open_one_socket: listen: "
1098 "%s\n", strerror(errno)));
1104 s->fde = tevent_add_fd(ev_ctx,
1106 s->fd, TEVENT_FD_READ,
1107 smbd_accept_connection,
1110 DEBUG(0,("smbd_open_one_socket: "
1111 "tevent_add_fd: %s\n",
1117 tevent_fd_set_close_fn(s->fde, smbd_open_socket_close_fn);
1119 DLIST_ADD_END(parent->sockets, s);
1124 /****************************************************************************
1125 Open the socket communication.
1126 ****************************************************************************/
1128 static bool open_sockets_smbd(struct smbd_parent_context *parent,
1129 struct tevent_context *ev_ctx,
1130 struct messaging_context *msg_ctx,
1131 const char *smb_ports)
1133 int num_interfaces = iface_count();
1136 unsigned dns_port = 0;
1143 smbd_setup_sig_chld_handler(parent);
1145 ports = lp_smb_ports();
1147 /* use a reasonable default set of ports - listing on 445 and 139 */
1150 l = str_list_make_v3(talloc_tos(), smb_ports, NULL);
1151 ports = discard_const_p(const char *, l);
1154 for (j = 0; ports && ports[j]; j++) {
1155 unsigned port = atoi(ports[j]);
1157 if (port == 0 || port > 0xffff) {
1158 exit_server_cleanly("Invalid port in the config or on "
1159 "the commandline specified!");
1163 if (lp_interfaces() && lp_bind_interfaces_only()) {
1164 /* We have been given an interfaces line, and been
1165 told to only bind to those interfaces. Create a
1166 socket per interface and bind to only these.
1169 /* Now open a listen socket for each of the
1171 for(i = 0; i < num_interfaces; i++) {
1172 const struct sockaddr_storage *ifss =
1173 iface_n_sockaddr_storage(i);
1175 DEBUG(0,("open_sockets_smbd: "
1176 "interface %d has NULL IP address !\n",
1181 for (j = 0; ports && ports[j]; j++) {
1182 unsigned port = atoi(ports[j]);
1184 /* Keep the first port for mDNS service
1187 if (dns_port == 0) {
1191 if (!smbd_open_one_socket(parent,
1200 /* Just bind to 0.0.0.0 - accept connections
1203 const char *sock_addr;
1205 const char *sock_ptr;
1208 sock_addr = "::,0.0.0.0";
1210 sock_addr = "0.0.0.0";
1213 for (sock_ptr=sock_addr;
1214 next_token_talloc(talloc_tos(), &sock_ptr, &sock_tok, " \t,"); ) {
1215 for (j = 0; ports && ports[j]; j++) {
1216 struct sockaddr_storage ss;
1217 unsigned port = atoi(ports[j]);
1219 /* Keep the first port for mDNS service
1222 if (dns_port == 0) {
1226 /* open an incoming socket */
1227 if (!interpret_string_addr(&ss, sock_tok,
1228 AI_NUMERICHOST|AI_PASSIVE)) {
1233 * If we fail to open any sockets
1234 * in this loop the parent-sockets == NULL
1235 * case below will prevent us from starting.
1238 (void)smbd_open_one_socket(parent,
1246 if (parent->sockets == NULL) {
1247 DEBUG(0,("open_sockets_smbd: No "
1248 "sockets available to bind to.\n"));
1252 /* Setup the main smbd so that we can get messages. Note that
1253 do this after starting listening. This is needed as when in
1254 clustered mode, ctdb won't allow us to start doing database
1255 operations until it has gone thru a full startup, which
1256 includes checking to see that smbd is listening. */
1258 if (!serverid_register(messaging_server_id(msg_ctx),
1259 FLAG_MSG_GENERAL|FLAG_MSG_SMBD
1260 |FLAG_MSG_PRINT_GENERAL
1261 |FLAG_MSG_DBWRAP)) {
1262 DEBUG(0, ("open_sockets_smbd: Failed to register "
1263 "myself in serverid.tdb\n"));
1267 /* Listen to messages */
1269 messaging_register(msg_ctx, NULL, MSG_SHUTDOWN, msg_exit_server);
1270 messaging_register(msg_ctx, ev_ctx, MSG_SMB_CONF_UPDATED,
1271 smbd_parent_conf_updated);
1272 messaging_register(msg_ctx, NULL, MSG_SMB_STAT_CACHE_DELETE,
1273 smb_stat_cache_delete);
1274 messaging_register(msg_ctx, NULL, MSG_DEBUG, smbd_msg_debug);
1275 messaging_register(msg_ctx, NULL, MSG_SMB_FORCE_TDIS,
1276 smb_parent_send_to_children);
1277 messaging_register(msg_ctx, NULL, MSG_SMB_KILL_CLIENT_IP,
1278 smb_parent_send_to_children);
1279 messaging_register(msg_ctx, NULL, MSG_SMB_TELL_NUM_CHILDREN,
1280 smb_tell_num_children);
1282 messaging_register(msg_ctx, NULL,
1283 ID_CACHE_DELETE, smbd_parent_id_cache_delete);
1284 messaging_register(msg_ctx, NULL,
1285 ID_CACHE_KILL, smbd_parent_id_cache_kill);
1286 messaging_register(msg_ctx, NULL, MSG_SMB_NOTIFY_STARTED,
1287 smb_parent_send_to_children);
1289 #ifdef CLUSTER_SUPPORT
1290 if (lp_clustering()) {
1291 struct ctdbd_connection *conn = messaging_ctdbd_connection();
1293 register_with_ctdbd(conn, CTDB_SRVID_RECONFIGURE,
1294 smbd_parent_ctdb_reconfigured, msg_ctx);
1295 register_with_ctdbd(conn, CTDB_SRVID_SAMBA_NOTIFY,
1296 smbd_parent_ctdb_reconfigured, msg_ctx);
1301 messaging_register(msg_ctx, NULL, MSG_SMB_INJECT_FAULT,
1305 if (lp_multicast_dns_register() && (dns_port != 0)) {
1306 #ifdef WITH_DNSSD_SUPPORT
1307 smbd_setup_mdns_registration(ev_ctx,
1310 #ifdef WITH_AVAHI_SUPPORT
1313 avahi_conn = avahi_start_register(ev_ctx,
1316 if (avahi_conn == NULL) {
1317 DEBUG(10, ("avahi_start_register failed\n"));
1327 handle stdin becoming readable when we are in --foreground mode
1329 static void smbd_stdin_handler(struct tevent_context *ev,
1330 struct tevent_fd *fde,
1335 if (read(0, &c, 1) != 1) {
1336 /* we have reached EOF on stdin, which means the
1337 parent has exited. Shutdown the server */
1338 exit_server_cleanly("EOF on stdin");
1342 struct smbd_parent_tevent_trace_state {
1346 static void smbd_parent_tevent_trace_callback(enum tevent_trace_point point,
1349 struct smbd_parent_tevent_trace_state *state =
1350 (struct smbd_parent_tevent_trace_state *)private_data;
1353 case TEVENT_TRACE_BEFORE_WAIT:
1355 case TEVENT_TRACE_AFTER_WAIT:
1357 case TEVENT_TRACE_BEFORE_LOOP_ONCE:
1358 TALLOC_FREE(state->frame);
1359 state->frame = talloc_stackframe();
1361 case TEVENT_TRACE_AFTER_LOOP_ONCE:
1362 TALLOC_FREE(state->frame);
1369 static void smbd_parent_loop(struct tevent_context *ev_ctx,
1370 struct smbd_parent_context *parent)
1372 struct smbd_parent_tevent_trace_state trace_state = {
1377 tevent_set_trace_callback(ev_ctx, smbd_parent_tevent_trace_callback,
1380 /* now accept incoming connections - forking a new process
1381 for each incoming connection */
1382 DEBUG(2,("waiting for connections\n"));
1384 ret = tevent_loop_wait(ev_ctx);
1386 DEBUG(0, ("tevent_loop_wait failed: %d, %s, exiting\n",
1387 ret, strerror(errno)));
1390 TALLOC_FREE(trace_state.frame);
1392 /* NOTREACHED return True; */
1396 /****************************************************************************
1397 Initialise connect, service and file structs.
1398 ****************************************************************************/
1400 static bool init_structs(void )
1403 * Set the machine NETBIOS name if not already
1404 * set from the config file.
1410 if (!secrets_init())
1416 static void smbd_parent_sig_term_handler(struct tevent_context *ev,
1417 struct tevent_signal *se,
1423 exit_server_cleanly("termination signal");
1426 static void smbd_parent_sig_hup_handler(struct tevent_context *ev,
1427 struct tevent_signal *se,
1433 struct smbd_parent_context *parent =
1434 talloc_get_type_abort(private_data,
1435 struct smbd_parent_context);
1437 change_to_root_user();
1438 DEBUG(1,("parent: Reloading services after SIGHUP\n"));
1439 reload_services(NULL, NULL, false);
1441 printing_subsystem_update(parent->ev_ctx, parent->msg_ctx, true);
1444 /****************************************************************************
1446 ****************************************************************************/
1448 /* Declare prototype for build_options() to avoid having to run it through
1449 mkproto.h. Mixing $(builddir) and $(srcdir) source files in the current
1450 prototype generation system is too complicated. */
1452 extern void build_options(bool screen);
1454 int main(int argc,const char *argv[])
1456 /* shall I run as a daemon */
1457 bool is_daemon = false;
1458 bool interactive = false;
1460 bool no_process_group = false;
1461 bool log_stdout = false;
1463 char *profile_level = NULL;
1466 bool print_build_options = False;
1467 struct server_id main_server_id = {0};
1472 OPT_NO_PROCESS_GROUP,
1475 struct poptOption long_options[] = {
1477 {"daemon", 'D', POPT_ARG_NONE, NULL, OPT_DAEMON, "Become a daemon (default)" },
1478 {"interactive", 'i', POPT_ARG_NONE, NULL, OPT_INTERACTIVE, "Run interactive (not a daemon)"},
1479 {"foreground", 'F', POPT_ARG_NONE, NULL, OPT_FORK, "Run daemon in foreground (for daemontools, etc.)" },
1480 {"no-process-group", '\0', POPT_ARG_NONE, NULL, OPT_NO_PROCESS_GROUP, "Don't create a new process group" },
1481 {"log-stdout", 'S', POPT_ARG_NONE, NULL, OPT_LOG_STDOUT, "Log to stdout" },
1482 {"build-options", 'b', POPT_ARG_NONE, NULL, 'b', "Print build options" },
1483 {"port", 'p', POPT_ARG_STRING, &ports, 0, "Listen on the specified ports"},
1484 {"profiling-level", 'P', POPT_ARG_STRING, &profile_level, 0, "Set profiling level","PROFILE_LEVEL"},
1488 struct smbd_parent_context *parent = NULL;
1491 struct tevent_context *ev_ctx;
1492 struct messaging_context *msg_ctx;
1493 struct server_id server_id;
1494 struct tevent_signal *se;
1495 int profiling_level;
1496 char *np_dir = NULL;
1497 static const struct smbd_shim smbd_shim_fns =
1499 .cancel_pending_lock_requests_by_fid = smbd_cancel_pending_lock_requests_by_fid,
1500 .send_stat_cache_delete_message = smbd_send_stat_cache_delete_message,
1501 .change_to_root_user = smbd_change_to_root_user,
1502 .become_authenticated_pipe_user = smbd_become_authenticated_pipe_user,
1503 .unbecome_authenticated_pipe_user = smbd_unbecome_authenticated_pipe_user,
1505 .contend_level2_oplocks_begin = smbd_contend_level2_oplocks_begin,
1506 .contend_level2_oplocks_end = smbd_contend_level2_oplocks_end,
1508 .become_root = smbd_become_root,
1509 .unbecome_root = smbd_unbecome_root,
1511 .exit_server = smbd_exit_server,
1512 .exit_server_cleanly = smbd_exit_server_cleanly,
1516 * Do this before any other talloc operation
1518 talloc_enable_null_tracking();
1519 frame = talloc_stackframe();
1521 setup_logging(argv[0], DEBUG_DEFAULT_STDOUT);
1525 set_smbd_shim(&smbd_shim_fns);
1527 smbd_init_globals();
1531 #ifdef HAVE_SET_AUTH_PARAMETERS
1532 set_auth_parameters(argc,argv);
1535 pc = poptGetContext("smbd", argc, argv, long_options, 0);
1536 while((opt = poptGetNextOpt(pc)) != -1) {
1541 case OPT_INTERACTIVE:
1547 case OPT_NO_PROCESS_GROUP:
1548 no_process_group = true;
1550 case OPT_LOG_STDOUT:
1554 print_build_options = True;
1557 d_fprintf(stderr, "\nInvalid option %s: %s\n\n",
1558 poptBadOption(pc, 0), poptStrerror(opt));
1559 poptPrintUsage(pc, stderr, 0);
1563 poptFreeContext(pc);
1571 setup_logging(argv[0], DEBUG_STDOUT);
1573 setup_logging(argv[0], DEBUG_FILE);
1576 if (print_build_options) {
1577 build_options(True); /* Display output to screen as well as debug */
1582 /* needed for SecureWare on SCO */
1586 set_remote_machine_name("smbd", False);
1588 if (interactive && (DEBUGLEVEL >= 9)) {
1589 talloc_enable_leak_report();
1592 if (log_stdout && Fork) {
1593 DEBUG(0,("ERROR: Can't log to stdout (-S) unless daemon is in foreground (-F) or interactive (-i)\n"));
1598 * We want to die early if we can't open /dev/urandom
1600 generate_random_buffer(NULL, 0);
1602 /* get initial effective uid and gid */
1605 /* make absolutely sure we run as root - to handle cases where people
1606 are crazy enough to have it setuid */
1607 gain_root_privilege();
1608 gain_root_group_privilege();
1611 dump_core_setup("smbd", lp_logfile(talloc_tos()));
1613 /* we are never interested in SIGPIPE */
1614 BlockSignals(True,SIGPIPE);
1617 /* we are never interested in SIGFPE */
1618 BlockSignals(True,SIGFPE);
1621 #if defined(SIGUSR2)
1622 /* We are no longer interested in USR2 */
1623 BlockSignals(True,SIGUSR2);
1626 /* POSIX demands that signals are inherited. If the invoking process has
1627 * these signals masked, we will have problems, as we won't recieve them. */
1628 BlockSignals(False, SIGHUP);
1629 BlockSignals(False, SIGUSR1);
1630 BlockSignals(False, SIGTERM);
1632 /* Ensure we leave no zombies until we
1633 * correctly set up child handling below. */
1637 /* we want total control over the permissions on created files,
1638 so set our umask to 0 */
1643 DEBUG(0,("smbd version %s started.\n", samba_version_string()));
1644 DEBUGADD(0,("%s\n", COPYRIGHT_STARTUP_MESSAGE));
1646 DEBUG(2,("uid=%d gid=%d euid=%d egid=%d\n",
1647 (int)getuid(),(int)getgid(),(int)geteuid(),(int)getegid()));
1649 /* Output the build options to the debug log */
1650 build_options(False);
1652 if (sizeof(uint16_t) < 2 || sizeof(uint32_t) < 4) {
1653 DEBUG(0,("ERROR: Samba is not configured correctly for the word size on your machine\n"));
1657 if (!lp_load_initial_only(get_dyn_CONFIGFILE())) {
1658 DEBUG(0, ("error opening config file '%s'\n", get_dyn_CONFIGFILE()));
1662 if (!cluster_probe_ok()) {
1666 /* Init the security context and global current_user */
1670 * Initialize the event context. The event context needs to be
1671 * initialized before the messaging context, cause the messaging
1672 * context holds an event context.
1673 * FIXME: This should be s3_tevent_context_init()
1675 ev_ctx = server_event_context();
1676 if (ev_ctx == NULL) {
1681 * Init the messaging context
1682 * FIXME: This should only call messaging_init()
1684 msg_ctx = server_messaging_context();
1685 if (msg_ctx == NULL) {
1690 * Reloading of the printers will not work here as we don't have a
1691 * server info and rpc services set up. It will be called later.
1693 if (!reload_services(NULL, NULL, false)) {
1697 if (lp_server_role() == ROLE_ACTIVE_DIRECTORY_DC
1698 && !lp_parm_bool(-1, "server role check", "inhibit", false)) {
1699 DEBUG(0, ("server role = 'active directory domain controller' not compatible with running smbd standalone. \n"));
1700 DEBUGADD(0, ("You should start 'samba' instead, and it will control starting smbd if required\n"));
1704 /* ...NOTE... Log files are working from this point! */
1706 DEBUG(3,("loaded services\n"));
1710 if (!profile_setup(msg_ctx, False)) {
1711 DEBUG(0,("ERROR: failed to setup profiling\n"));
1715 if (profile_level != NULL) {
1716 profiling_level = atoi(profile_level);
1718 profiling_level = lp_smbd_profiling_level();
1720 main_server_id = messaging_server_id(msg_ctx);
1721 set_profile_level(profiling_level, &main_server_id);
1723 if (!is_daemon && !is_a_socket(0)) {
1725 DEBUG(3, ("Standard input is not a socket, "
1726 "assuming -D option\n"));
1730 * Setting is_daemon here prevents us from eventually calling
1731 * the open_sockets_inetd()
1737 if (is_daemon && !interactive) {
1738 DEBUG(3, ("Becoming a daemon.\n"));
1739 become_daemon(Fork, no_process_group, log_stdout);
1744 * If we're interactive we want to set our own process group for
1745 * signal management.
1747 if (interactive && !no_process_group)
1748 setpgid( (pid_t)0, (pid_t)0);
1751 if (!directory_exist(lp_lock_directory()))
1752 mkdir(lp_lock_directory(), 0755);
1754 if (!directory_exist(lp_pid_directory()))
1755 mkdir(lp_pid_directory(), 0755);
1758 pidfile_create(lp_pid_directory(), "smbd");
1760 status = reinit_after_fork(msg_ctx, ev_ctx, false, NULL);
1761 if (!NT_STATUS_IS_OK(status)) {
1762 exit_daemon("reinit_after_fork() failed", map_errno_from_nt_status(status));
1767 * Do not initialize the parent-child-pipe before becoming a
1768 * daemon: this is used to detect a died parent in the child
1771 status = init_before_fork();
1772 if (!NT_STATUS_IS_OK(status)) {
1773 exit_daemon(nt_errstr(status), map_errno_from_nt_status(status));
1777 parent = talloc_zero(ev_ctx, struct smbd_parent_context);
1779 exit_server("talloc(struct smbd_parent_context) failed");
1781 parent->interactive = interactive;
1782 parent->ev_ctx = ev_ctx;
1783 parent->msg_ctx = msg_ctx;
1786 se = tevent_add_signal(parent->ev_ctx,
1789 smbd_parent_sig_term_handler,
1792 exit_server("failed to setup SIGTERM handler");
1794 se = tevent_add_signal(parent->ev_ctx,
1797 smbd_parent_sig_hup_handler,
1800 exit_server("failed to setup SIGHUP handler");
1803 /* Setup all the TDB's - including CLEAR_IF_FIRST tdb's. */
1805 if (smbd_memcache() == NULL) {
1806 exit_daemon("no memcache available", EACCES);
1809 memcache_set_global(smbd_memcache());
1811 /* Initialise the password backed before the global_sam_sid
1812 to ensure that we fetch from ldap before we make a domain sid up */
1814 if(!initialize_password_db(false, ev_ctx))
1817 if (!secrets_init()) {
1818 exit_daemon("smbd can not open secrets.tdb", EACCES);
1821 if (lp_server_role() == ROLE_DOMAIN_BDC || lp_server_role() == ROLE_DOMAIN_PDC) {
1822 struct loadparm_context *lp_ctx = loadparm_init_s3(NULL, loadparm_s3_helpers());
1823 if (!open_schannel_session_store(NULL, lp_ctx)) {
1824 exit_daemon("ERROR: Samba cannot open schannel store for secured NETLOGON operations.", EACCES);
1826 TALLOC_FREE(lp_ctx);
1829 if(!get_global_sam_sid()) {
1830 exit_daemon("Samba cannot create a SAM SID", EACCES);
1833 server_id = messaging_server_id(msg_ctx);
1834 status = smbXsrv_version_global_init(&server_id);
1835 if (!NT_STATUS_IS_OK(status)) {
1836 exit_daemon("Samba cannot init server context", EACCES);
1839 status = smbXsrv_session_global_init(msg_ctx);
1840 if (!NT_STATUS_IS_OK(status)) {
1841 exit_daemon("Samba cannot init session context", EACCES);
1844 status = smbXsrv_tcon_global_init();
1845 if (!NT_STATUS_IS_OK(status)) {
1846 exit_daemon("Samba cannot init tcon context", EACCES);
1849 if (!locking_init())
1850 exit_daemon("Samba cannot init locking", EACCES);
1852 if (!leases_db_init(false)) {
1853 exit_daemon("Samba cannot init leases", EACCES);
1856 if (!smbd_notifyd_init(msg_ctx, interactive, &parent->notifyd)) {
1857 exit_daemon("Samba cannot init notification", EACCES);
1860 if (!cleanupd_init(msg_ctx, interactive, &parent->cleanupd)) {
1861 exit_daemon("Samba cannot init the cleanupd", EACCES);
1864 if (!messaging_parent_dgm_cleanup_init(msg_ctx)) {
1868 if (!smbd_scavenger_init(NULL, msg_ctx, ev_ctx)) {
1869 exit_daemon("Samba cannot init scavenging", EACCES);
1872 if (!serverid_parent_init(ev_ctx)) {
1873 exit_daemon("Samba cannot init server id", EACCES);
1876 if (!W_ERROR_IS_OK(registry_init_full()))
1877 exit_daemon("Samba cannot init registry", EACCES);
1879 /* Open the share_info.tdb here, so we don't have to open
1880 after the fork on every single connection. This is a small
1881 performance improvment and reduces the total number of system
1883 if (!share_info_db_init()) {
1884 exit_daemon("ERROR: failed to load share info db.", EACCES);
1887 status = init_system_session_info();
1888 if (!NT_STATUS_IS_OK(status)) {
1889 DEBUG(1, ("ERROR: failed to setup system user info: %s.\n",
1890 nt_errstr(status)));
1894 if (!init_guest_info()) {
1895 DEBUG(0,("ERROR: failed to setup guest info.\n"));
1899 if (!file_init_global()) {
1900 DEBUG(0, ("ERROR: file_init_global() failed\n"));
1903 status = smbXsrv_open_global_init();
1904 if (!NT_STATUS_IS_OK(status)) {
1905 exit_daemon("Samba cannot init global open", map_errno_from_nt_status(status));
1908 /* This MUST be done before start_epmd() because otherwise
1909 * start_epmd() forks and races against dcesrv_ep_setup() to
1910 * call directory_create_or_exist() */
1911 if (!directory_create_or_exist(lp_ncalrpc_dir(), 0755)) {
1912 DEBUG(0, ("Failed to create pipe directory %s - %s\n",
1913 lp_ncalrpc_dir(), strerror(errno)));
1917 np_dir = talloc_asprintf(talloc_tos(), "%s/np", lp_ncalrpc_dir());
1919 DEBUG(0, ("%s: Out of memory\n", __location__));
1923 if (!directory_create_or_exist_strict(np_dir, geteuid(), 0700)) {
1924 DEBUG(0, ("Failed to create pipe directory %s - %s\n",
1925 np_dir, strerror(errno)));
1929 if (is_daemon && !interactive) {
1930 if (rpc_epmapper_daemon() == RPC_DAEMON_FORK) {
1931 start_epmd(ev_ctx, msg_ctx);
1935 if (!dcesrv_ep_setup(ev_ctx, msg_ctx)) {
1936 exit_daemon("Samba cannot setup ep pipe", EACCES);
1939 if (is_daemon && !interactive) {
1940 daemon_ready("smbd");
1943 /* only start other daemons if we are running as a daemon
1944 * -- bad things will happen if smbd is launched via inetd
1945 * and we fork a copy of ourselves here */
1946 if (is_daemon && !interactive) {
1948 if (rpc_lsasd_daemon() == RPC_DAEMON_FORK) {
1949 start_lsasd(ev_ctx, msg_ctx);
1952 if (rpc_fss_daemon() == RPC_DAEMON_FORK) {
1953 start_fssd(ev_ctx, msg_ctx);
1956 if (!lp__disable_spoolss() &&
1957 (rpc_spoolss_daemon() != RPC_DAEMON_DISABLED)) {
1958 bool bgq = lp_parm_bool(-1, "smbd", "backgroundqueue", true);
1960 if (!printing_subsystem_init(ev_ctx, msg_ctx, true, bgq)) {
1961 exit_daemon("Samba failed to init printing subsystem", EACCES);
1965 #ifdef WITH_SPOTLIGHT
1966 if ((rpc_mdssvc_mode() == RPC_SERVICE_MODE_EXTERNAL) &&
1967 (rpc_mdssd_daemon() == RPC_DAEMON_FORK)) {
1968 start_mdssd(ev_ctx, msg_ctx);
1971 } else if (!lp__disable_spoolss() &&
1972 (rpc_spoolss_daemon() != RPC_DAEMON_DISABLED)) {
1973 if (!printing_subsystem_init(ev_ctx, msg_ctx, false, false)) {
1984 /* Started from inetd. fd 0 is the socket. */
1985 /* We will abort gracefully when the client or remote system
1989 /* close stdin, stdout (if not logging to it), but not stderr */
1990 close_low_fds(true, !debug_get_output_is_stdout(), false);
1997 smbd_setup_sig_chld_handler(parent);
1999 smbd_process(ev_ctx, msg_ctx, sock, true);
2001 exit_server_cleanly(NULL);
2005 if (!open_sockets_smbd(parent, ev_ctx, msg_ctx, ports))
2006 exit_server("open_sockets_smbd() failed");
2008 /* do a printer update now that all messaging has been set up,
2009 * before we allow clients to start connecting */
2010 if (!lp__disable_spoolss() &&
2011 (rpc_spoolss_daemon() != RPC_DAEMON_DISABLED)) {
2012 printing_subsystem_update(ev_ctx, msg_ctx, false);
2016 /* make sure we always have a valid stackframe */
2017 frame = talloc_stackframe();
2020 /* if we are running in the foreground then look for
2021 EOF on stdin, and exit if it happens. This allows
2022 us to die if the parent process dies
2023 Only do this on a pipe or socket, no other device.
2026 if (fstat(0, &st) != 0) {
2029 if (S_ISFIFO(st.st_mode) || S_ISSOCK(st.st_mode)) {
2030 tevent_add_fd(ev_ctx,
2039 smbd_parent_loop(ev_ctx, parent);
2041 exit_server_cleanly(NULL);