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 "smbd/globals.h"
26 #include "librpc/gen_ndr/messaging.h"
32 extern int dcelogin_atmost_once;
35 int smbd_server_fd(void)
40 static void smbd_set_server_fd(int fd)
45 int get_client_fd(void)
50 struct event_context *smbd_event_context(void)
52 if (!smbd_event_ctx) {
54 * Note we MUST use the NULL context here, not the
55 * autofree context, to avoid side effects in forked
58 smbd_event_ctx = event_context_init(NULL);
60 if (!smbd_event_ctx) {
61 smb_panic("Could not init smbd event context");
63 return smbd_event_ctx;
66 /*******************************************************************
67 What to do when smb.conf is updated.
68 ********************************************************************/
70 static void smb_conf_updated(struct messaging_context *msg,
73 struct server_id server_id,
76 DEBUG(10,("smb_conf_updated: Got message saying smb.conf was "
77 "updated. Reloading.\n"));
78 change_to_root_user();
79 reload_services(False);
83 /*******************************************************************
84 Delete a statcache entry.
85 ********************************************************************/
87 static void smb_stat_cache_delete(struct messaging_context *msg,
90 struct server_id server_id,
93 const char *name = (const char *)data->data;
94 DEBUG(10,("smb_stat_cache_delete: delete name %s\n", name));
95 stat_cache_delete(name);
98 /****************************************************************************
99 Send a SIGTERM to our process group.
100 *****************************************************************************/
102 static void killkids(void)
104 if(am_parent) kill(0,SIGTERM);
107 /****************************************************************************
108 Process a sam sync message - not sure whether to do this here or
110 ****************************************************************************/
112 static void msg_sam_sync(struct messaging_context *msg,
115 struct server_id server_id,
118 DEBUG(10, ("** sam sync message received, ignoring\n"));
121 static void msg_exit_server(struct messaging_context *msg,
124 struct server_id server_id,
127 DEBUG(3, ("got a SHUTDOWN message\n"));
128 exit_server_cleanly(NULL);
132 static void msg_inject_fault(struct messaging_context *msg,
135 struct server_id src,
140 if (data->length != sizeof(sig)) {
141 DEBUG(0, ("Process %s sent bogus signal injection request\n",
142 procid_str_static(&src)));
146 sig = *(int *)data->data;
148 exit_server("internal error injected");
153 DEBUG(0, ("Process %s requested injection of signal %d (%s)\n",
154 procid_str_static(&src), sig, strsignal(sig)));
156 DEBUG(0, ("Process %s requested injection of signal %d\n",
157 procid_str_static(&src), sig));
160 kill(sys_getpid(), sig);
162 #endif /* DEVELOPER */
165 * Parent smbd process sets its own debug level first and then
166 * sends a message to all the smbd children to adjust their debug
167 * level to that of the parent.
170 static void smbd_msg_debug(struct messaging_context *msg_ctx,
173 struct server_id server_id,
176 struct child_pid *child;
178 debug_message(msg_ctx, private_data, MSG_DEBUG, server_id, data);
180 for (child = children; child != NULL; child = child->next) {
181 messaging_send_buf(msg_ctx, pid_to_procid(child->pid),
184 strlen((char *) data->data) + 1);
188 static void add_child_pid(pid_t pid)
190 struct child_pid *child;
192 child = SMB_MALLOC_P(struct child_pid);
194 DEBUG(0, ("Could not add child struct -- malloc failed\n"));
198 DLIST_ADD(children, child);
203 at most every smbd:cleanuptime seconds (default 20), we scan the BRL
204 and locking database for entries to cleanup. As a side effect this
205 also cleans up dead entries in the connections database (due to the
206 traversal in message_send_all()
208 Using a timer for this prevents a flood of traversals when a large
209 number of clients disconnect at the same time (perhaps due to a
213 static void cleanup_timeout_fn(struct event_context *event_ctx,
214 struct timed_event *te,
218 struct timed_event **cleanup_te = (struct timed_event **)private_data;
220 DEBUG(1,("Cleaning up brl and lock database after unclean shutdown\n"));
221 message_send_all(smbd_messaging_context(), MSG_SMB_UNLOCK, NULL, 0, NULL);
222 messaging_send_buf(smbd_messaging_context(), procid_self(),
223 MSG_SMB_BRL_VALIDATE, NULL, 0);
224 /* mark the cleanup as having been done */
225 (*cleanup_te) = NULL;
228 static void remove_child_pid(pid_t pid, bool unclean_shutdown)
230 struct child_pid *child;
231 static struct timed_event *cleanup_te;
232 struct server_id child_id;
234 if (unclean_shutdown) {
235 /* a child terminated uncleanly so tickle all
236 processes to see if they can grab any of the
239 DEBUG(3,(__location__ " Unclean shutdown of pid %u\n",
242 /* call the cleanup timer, but not too often */
243 int cleanup_time = lp_parm_int(-1, "smbd", "cleanuptime", 20);
244 cleanup_te = event_add_timed(smbd_event_context(), NULL,
245 timeval_current_ofs(cleanup_time, 0),
248 DEBUG(1,("Scheduled cleanup of brl and lock database after unclean shutdown\n"));
252 child_id = procid_self(); /* Just initialize pid and potentially vnn */
255 if (!serverid_deregister(&child_id)) {
256 DEBUG(1, ("Could not remove pid %d from serverid.tdb\n",
260 for (child = children; child != NULL; child = child->next) {
261 if (child->pid == pid) {
262 struct child_pid *tmp = child;
263 DLIST_REMOVE(children, child);
270 DEBUG(0, ("Could not find child %d -- ignoring\n", (int)pid));
273 /****************************************************************************
274 Have we reached the process limit ?
275 ****************************************************************************/
277 static bool allowable_number_of_smbd_processes(void)
279 int max_processes = lp_max_smbd_processes();
284 return num_children < max_processes;
287 static void smbd_sig_chld_handler(struct tevent_context *ev,
288 struct tevent_signal *se,
297 while ((pid = sys_waitpid(-1, &status, WNOHANG)) > 0) {
298 bool unclean_shutdown = False;
300 /* If the child terminated normally, assume
301 it was an unclean shutdown unless the
304 if (WIFEXITED(status)) {
305 unclean_shutdown = WEXITSTATUS(status);
307 /* If the child terminated due to a signal
308 we always assume it was unclean.
310 if (WIFSIGNALED(status)) {
311 unclean_shutdown = True;
313 remove_child_pid(pid, unclean_shutdown);
317 static void smbd_setup_sig_chld_handler(void)
319 struct tevent_signal *se;
321 se = tevent_add_signal(smbd_event_context(),
322 smbd_event_context(),
324 smbd_sig_chld_handler,
327 exit_server("failed to setup SIGCHLD handler");
331 struct smbd_open_socket;
333 struct smbd_parent_context {
336 /* the list of listening sockets */
337 struct smbd_open_socket *sockets;
340 struct smbd_open_socket {
341 struct smbd_open_socket *prev, *next;
342 struct smbd_parent_context *parent;
344 struct tevent_fd *fde;
347 static void smbd_open_socket_close_fn(struct tevent_context *ev,
348 struct tevent_fd *fde,
352 /* this might be the socket_wrapper swrap_close() */
356 static void smbd_accept_connection(struct tevent_context *ev,
357 struct tevent_fd *fde,
361 struct smbd_open_socket *s = talloc_get_type_abort(private_data,
362 struct smbd_open_socket);
363 struct sockaddr_storage addr;
364 socklen_t in_addrlen = sizeof(addr);
368 smbd_set_server_fd(accept(s->fd,(struct sockaddr *)&addr,&in_addrlen));
370 if (smbd_server_fd() == -1 && errno == EINTR)
373 if (smbd_server_fd() == -1) {
374 DEBUG(0,("open_sockets_smbd: accept: %s\n",
379 if (s->parent->interactive) {
381 exit_server_cleanly("end of interactive mode");
385 if (!allowable_number_of_smbd_processes()) {
386 close(smbd_server_fd());
387 smbd_set_server_fd(-1);
392 * Generate a unique id in the parent process so that we use
393 * the global random state in the parent.
395 generate_random_buffer((uint8_t *)&unique_id, sizeof(unique_id));
399 NTSTATUS status = NT_STATUS_OK;
404 set_my_unique_id(unique_id);
406 /* Stop zombies, the parent explicitly handles
407 * them, counting worker smbds. */
410 /* close our standard file
412 close_low_fds(False);
415 * Can't use TALLOC_FREE here. Nulling out the argument to it
416 * would overwrite memory we've just freed.
418 talloc_free(s->parent);
421 status = reinit_after_fork(smbd_messaging_context(),
422 smbd_event_context(), true);
423 if (!NT_STATUS_IS_OK(status)) {
424 if (NT_STATUS_EQUAL(status,
425 NT_STATUS_TOO_MANY_OPENED_FILES)) {
426 DEBUG(0,("child process cannot initialize "
427 "because too many files are open\n"));
430 DEBUG(0,("reinit_after_fork() failed\n"));
431 smb_panic("reinit_after_fork() failed");
434 smbd_setup_sig_term_handler();
435 smbd_setup_sig_hup_handler();
437 if (!serverid_register_self(FLAG_MSG_GENERAL|FLAG_MSG_SMBD
439 |FLAG_MSG_PRINT_GENERAL)) {
440 exit_server_cleanly("Could not register myself in "
446 exit_server_cleanly("end of child");
448 } else if (pid < 0) {
449 DEBUG(0,("smbd_accept_connection: sys_fork() failed: %s\n",
453 /* The parent doesn't need this socket */
454 close(smbd_server_fd());
456 /* Sun May 6 18:56:14 2001 ackley@cs.unm.edu:
457 Clear the closed fd info out of server_fd --
458 and more importantly, out of client_fd in
459 util_sock.c, to avoid a possible
460 getpeername failure if we reopen the logs
461 and use %I in the filename.
464 smbd_set_server_fd(-1);
470 /* Force parent to check log size after
471 * spawning child. Fix from
472 * klausr@ITAP.Physik.Uni-Stuttgart.De. The
473 * parent smbd will log to logserver.smb. It
474 * writes only two messages for each child
475 * started/finished. But each child writes,
476 * say, 50 messages also in logserver.smb,
477 * begining with the debug_count of the
478 * parent, before the child opens its own log
479 * file logserver.client. In a worst case
480 * scenario the size of logserver.smb would be
481 * checked after about 50*50=2500 messages
484 force_check_log_size();
487 static bool smbd_open_one_socket(struct smbd_parent_context *parent,
488 const struct sockaddr_storage *ifss,
491 struct smbd_open_socket *s;
493 s = talloc(parent, struct smbd_open_socket);
499 s->fd = open_socket_in(SOCK_STREAM,
501 parent->sockets == NULL ? 0 : 2,
505 DEBUG(0,("smbd_open_once_socket: open_socket_in: "
506 "%s\n", strerror(errno)));
509 * We ignore an error here, as we've done before
514 /* ready to listen */
515 set_socket_options(s->fd, "SO_KEEPALIVE");
516 set_socket_options(s->fd, lp_socket_options());
518 /* Set server socket to
519 * non-blocking for the accept. */
520 set_blocking(s->fd, False);
522 if (listen(s->fd, SMBD_LISTEN_BACKLOG) == -1) {
523 DEBUG(0,("open_sockets_smbd: listen: "
524 "%s\n", strerror(errno)));
530 s->fde = tevent_add_fd(smbd_event_context(),
532 s->fd, TEVENT_FD_READ,
533 smbd_accept_connection,
536 DEBUG(0,("open_sockets_smbd: "
537 "tevent_add_fd: %s\n",
543 tevent_fd_set_close_fn(s->fde, smbd_open_socket_close_fn);
545 DLIST_ADD_END(parent->sockets, s, struct smbd_open_socket *);
550 /****************************************************************************
551 Open the socket communication.
552 ****************************************************************************/
554 static bool open_sockets_smbd(struct smbd_parent_context *parent,
555 const char *smb_ports)
557 int num_interfaces = iface_count();
560 unsigned dns_port = 0;
567 smbd_setup_sig_chld_handler();
569 /* use a reasonable default set of ports - listing on 445 and 139 */
571 ports = lp_smb_ports();
572 if (!ports || !*ports) {
573 ports = talloc_strdup(talloc_tos(), SMB_PORTS);
575 ports = talloc_strdup(talloc_tos(), ports);
578 ports = talloc_strdup(talloc_tos(), smb_ports);
581 if (lp_interfaces() && lp_bind_interfaces_only()) {
582 /* We have been given an interfaces line, and been
583 told to only bind to those interfaces. Create a
584 socket per interface and bind to only these.
587 /* Now open a listen socket for each of the
589 for(i = 0; i < num_interfaces; i++) {
590 const struct sockaddr_storage *ifss =
591 iface_n_sockaddr_storage(i);
596 DEBUG(0,("open_sockets_smbd: "
597 "interface %d has NULL IP address !\n",
603 next_token_talloc(talloc_tos(),&ptr, &tok, " \t,");) {
604 unsigned port = atoi(tok);
605 if (port == 0 || port > 0xffff) {
609 if (!smbd_open_one_socket(parent, ifss, port)) {
615 /* Just bind to 0.0.0.0 - accept connections
620 const char *sock_addr = lp_socket_address();
622 const char *sock_ptr;
624 if (strequal(sock_addr, "0.0.0.0") ||
625 strequal(sock_addr, "::")) {
627 sock_addr = "::,0.0.0.0";
629 sock_addr = "0.0.0.0";
633 for (sock_ptr=sock_addr;
634 next_token_talloc(talloc_tos(), &sock_ptr, &sock_tok, " \t,"); ) {
635 for (ptr=ports; next_token_talloc(talloc_tos(), &ptr, &tok, " \t,"); ) {
636 struct sockaddr_storage ss;
638 unsigned port = atoi(tok);
639 if (port == 0 || port > 0xffff) {
643 /* Keep the first port for mDNS service
650 /* open an incoming socket */
651 if (!interpret_string_addr(&ss, sock_tok,
652 AI_NUMERICHOST|AI_PASSIVE)) {
656 if (!smbd_open_one_socket(parent, &ss, port)) {
663 if (parent->sockets == NULL) {
664 DEBUG(0,("open_sockets_smbd: No "
665 "sockets available to bind to.\n"));
669 /* Setup the main smbd so that we can get messages. Note that
670 do this after starting listening. This is needed as when in
671 clustered mode, ctdb won't allow us to start doing database
672 operations until it has gone thru a full startup, which
673 includes checking to see that smbd is listening. */
675 if (!serverid_register_self(FLAG_MSG_GENERAL|FLAG_MSG_SMBD
677 DEBUG(0, ("open_sockets_smbd: Failed to register "
678 "myself in serverid.tdb\n"));
682 /* Listen to messages */
684 messaging_register(smbd_messaging_context(), NULL,
685 MSG_SMB_SAM_SYNC, msg_sam_sync);
686 messaging_register(smbd_messaging_context(), NULL,
687 MSG_SHUTDOWN, msg_exit_server);
688 messaging_register(smbd_messaging_context(), NULL,
689 MSG_SMB_FILE_RENAME, msg_file_was_renamed);
690 messaging_register(smbd_messaging_context(), NULL,
691 MSG_SMB_CONF_UPDATED, smb_conf_updated);
692 messaging_register(smbd_messaging_context(), NULL,
693 MSG_SMB_STAT_CACHE_DELETE, smb_stat_cache_delete);
694 messaging_register(smbd_messaging_context(), NULL,
695 MSG_DEBUG, smbd_msg_debug);
696 brl_register_msgs(smbd_messaging_context());
698 #ifdef CLUSTER_SUPPORT
699 if (lp_clustering()) {
700 ctdbd_register_reconfigure(messaging_ctdbd_connection());
705 messaging_register(smbd_messaging_context(), NULL,
706 MSG_SMB_INJECT_FAULT, msg_inject_fault);
710 #ifdef WITH_DNSSD_SUPPORT
711 smbd_setup_mdns_registration(smbd_event_context(),
714 #ifdef WITH_AVAHI_SUPPORT
717 avahi_conn = avahi_start_register(
718 smbd_event_context(), smbd_event_context(), dns_port);
719 if (avahi_conn == NULL) {
720 DEBUG(10, ("avahi_start_register failed\n"));
728 static void smbd_parent_loop(struct smbd_parent_context *parent)
730 /* now accept incoming connections - forking a new process
731 for each incoming connection */
732 DEBUG(2,("waiting for connections\n"));
735 TALLOC_CTX *frame = talloc_stackframe();
737 ret = tevent_loop_once(smbd_event_context());
739 exit_server_cleanly("tevent_loop_once() error");
745 /* NOTREACHED return True; */
749 /****************************************************************************
750 Initialise connect, service and file structs.
751 ****************************************************************************/
753 static bool init_structs(void )
756 * Set the machine NETBIOS name if not already
757 * set from the config file.
771 /****************************************************************************
773 ****************************************************************************/
775 /* Declare prototype for build_options() to avoid having to run it through
776 mkproto.h. Mixing $(builddir) and $(srcdir) source files in the current
777 prototype generation system is too complicated. */
779 extern void build_options(bool screen);
781 int main(int argc,const char *argv[])
783 /* shall I run as a daemon */
784 bool is_daemon = false;
785 bool interactive = false;
787 bool no_process_group = false;
788 bool log_stdout = false;
790 char *profile_level = NULL;
793 bool print_build_options = False;
798 OPT_NO_PROCESS_GROUP,
801 struct poptOption long_options[] = {
803 {"daemon", 'D', POPT_ARG_NONE, NULL, OPT_DAEMON, "Become a daemon (default)" },
804 {"interactive", 'i', POPT_ARG_NONE, NULL, OPT_INTERACTIVE, "Run interactive (not a daemon)"},
805 {"foreground", 'F', POPT_ARG_NONE, NULL, OPT_FORK, "Run daemon in foreground (for daemontools, etc.)" },
806 {"no-process-group", '\0', POPT_ARG_NONE, NULL, OPT_NO_PROCESS_GROUP, "Don't create a new process group" },
807 {"log-stdout", 'S', POPT_ARG_NONE, NULL, OPT_LOG_STDOUT, "Log to stdout" },
808 {"build-options", 'b', POPT_ARG_NONE, NULL, 'b', "Print build options" },
809 {"port", 'p', POPT_ARG_STRING, &ports, 0, "Listen on the specified ports"},
810 {"profiling-level", 'P', POPT_ARG_STRING, &profile_level, 0, "Set profiling level","PROFILE_LEVEL"},
812 POPT_COMMON_DYNCONFIG
815 struct smbd_parent_context *parent = NULL;
816 TALLOC_CTX *frame = talloc_stackframe(); /* Setup tos. */
822 #ifdef HAVE_SET_AUTH_PARAMETERS
823 set_auth_parameters(argc,argv);
826 pc = poptGetContext("smbd", argc, argv, long_options, 0);
827 while((opt = poptGetNextOpt(pc)) != -1) {
832 case OPT_INTERACTIVE:
838 case OPT_NO_PROCESS_GROUP:
839 no_process_group = true;
845 print_build_options = True;
848 d_fprintf(stderr, "\nInvalid option %s: %s\n\n",
849 poptBadOption(pc, 0), poptStrerror(opt));
850 poptPrintUsage(pc, stderr, 0);
861 setup_logging(argv[0],log_stdout);
863 if (print_build_options) {
864 build_options(True); /* Display output to screen as well as debug */
871 /* needed for SecureWare on SCO */
877 set_remote_machine_name("smbd", False);
879 if (interactive && (DEBUGLEVEL >= 9)) {
880 talloc_enable_leak_report();
883 if (log_stdout && Fork) {
884 DEBUG(0,("ERROR: Can't log to stdout (-S) unless daemon is in foreground (-F) or interactive (-i)\n"));
888 /* we want to re-seed early to prevent time delays causing
889 client problems at a later date. (tridge) */
890 generate_random_buffer(NULL, 0);
892 /* make absolutely sure we run as root - to handle cases where people
893 are crazy enough to have it setuid */
895 gain_root_privilege();
896 gain_root_group_privilege();
898 fault_setup((void (*)(void *))exit_server_fault);
899 dump_core_setup("smbd");
901 /* we are never interested in SIGPIPE */
902 BlockSignals(True,SIGPIPE);
905 /* we are never interested in SIGFPE */
906 BlockSignals(True,SIGFPE);
910 /* We are no longer interested in USR2 */
911 BlockSignals(True,SIGUSR2);
914 /* POSIX demands that signals are inherited. If the invoking process has
915 * these signals masked, we will have problems, as we won't recieve them. */
916 BlockSignals(False, SIGHUP);
917 BlockSignals(False, SIGUSR1);
918 BlockSignals(False, SIGTERM);
920 /* Ensure we leave no zombies until we
921 * correctly set up child handling below. */
925 /* we want total control over the permissions on created files,
926 so set our umask to 0 */
933 DEBUG(0,("smbd version %s started.\n", samba_version_string()));
934 DEBUGADD(0,("%s\n", COPYRIGHT_STARTUP_MESSAGE));
936 DEBUG(2,("uid=%d gid=%d euid=%d egid=%d\n",
937 (int)getuid(),(int)getgid(),(int)geteuid(),(int)getegid()));
939 /* Output the build options to the debug log */
940 build_options(False);
942 if (sizeof(uint16) < 2 || sizeof(uint32) < 4) {
943 DEBUG(0,("ERROR: Samba is not configured correctly for the word size on your machine\n"));
947 if (!lp_load_initial_only(get_dyn_CONFIGFILE())) {
948 DEBUG(0, ("error opening config file\n"));
952 if (smbd_messaging_context() == NULL)
955 if (!reload_services(False))
961 if (!profile_setup(smbd_messaging_context(), False)) {
962 DEBUG(0,("ERROR: failed to setup profiling\n"));
965 if (profile_level != NULL) {
966 int pl = atoi(profile_level);
967 struct server_id src;
969 DEBUG(1, ("setting profiling level: %s\n",profile_level));
971 set_profile_level(pl, src);
975 DEBUG(3,( "loaded services\n"));
977 if (!is_daemon && !is_a_socket(0)) {
979 DEBUG(0,("standard input is not a socket, assuming -D option\n"));
982 * Setting is_daemon here prevents us from eventually calling
983 * the open_sockets_inetd()
989 if (is_daemon && !interactive) {
990 DEBUG( 3, ( "Becoming a daemon.\n" ) );
991 become_daemon(Fork, no_process_group, log_stdout);
996 * If we're interactive we want to set our own process group for
999 if (interactive && !no_process_group)
1000 setpgid( (pid_t)0, (pid_t)0);
1003 if (!directory_exist(lp_lockdir()))
1004 mkdir(lp_lockdir(), 0755);
1007 pidfile_create("smbd");
1009 if (!NT_STATUS_IS_OK(reinit_after_fork(smbd_messaging_context(),
1010 smbd_event_context(), false))) {
1011 DEBUG(0,("reinit_after_fork() failed\n"));
1015 smbd_setup_sig_term_handler();
1016 smbd_setup_sig_hup_handler();
1018 /* Setup all the TDB's - including CLEAR_IF_FIRST tdb's. */
1020 if (smbd_memcache() == NULL) {
1024 memcache_set_global(smbd_memcache());
1026 /* Initialise the password backed before the global_sam_sid
1027 to ensure that we fetch from ldap before we make a domain sid up */
1029 if(!initialize_password_db(False, smbd_event_context()))
1032 if (!secrets_init()) {
1033 DEBUG(0, ("ERROR: smbd can not open secrets.tdb\n"));
1037 if(!get_global_sam_sid()) {
1038 DEBUG(0,("ERROR: Samba cannot create a SAM SID.\n"));
1042 if (!sessionid_init()) {
1046 if (!connections_init(True))
1049 if (!locking_init())
1052 if (!messaging_tdb_parent_init()) {
1056 if (!notify_internal_parent_init()) {
1060 if (!serverid_parent_init()) {
1064 if (!W_ERROR_IS_OK(registry_init_full()))
1068 if (!init_svcctl_db())
1072 if (!init_system_info()) {
1073 DEBUG(0,("ERROR: failed to setup system user info.\n"));
1077 if (!print_backend_init(smbd_messaging_context()))
1080 if (!init_guest_info()) {
1081 DEBUG(0,("ERROR: failed to setup guest info.\n"));
1085 /* Open the share_info.tdb here, so we don't have to open
1086 after the fork on every single connection. This is a small
1087 performance improvment and reduces the total number of system
1089 if (!share_info_db_init()) {
1090 DEBUG(0,("ERROR: failed to load share info db.\n"));
1094 /* only start the background queue daemon if we are
1095 running as a daemon -- bad things will happen if
1096 smbd is launched via inetd and we fork a copy of
1099 if (is_daemon && !interactive
1100 && lp_parm_bool(-1, "smbd", "backgroundqueue", true)) {
1101 start_background_queue();
1108 /* Started from inetd. fd 0 is the socket. */
1109 /* We will abort gracefully when the client or remote system
1111 smbd_set_server_fd(dup(0));
1113 /* close our standard file descriptors */
1114 close_low_fds(False); /* Don't close stderr */
1121 smbd_setup_sig_chld_handler();
1125 exit_server_cleanly(NULL);
1129 parent = talloc_zero(smbd_event_context(), struct smbd_parent_context);
1131 exit_server("talloc(struct smbd_parent_context) failed");
1133 parent->interactive = interactive;
1135 if (!open_sockets_smbd(parent, ports))
1136 exit_server("open_sockets_smbd() failed");
1139 /* make sure we always have a valid stackframe */
1140 frame = talloc_stackframe();
1142 smbd_parent_loop(parent);
1144 exit_server_cleanly(NULL);