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 "popt_common.h"
26 #include "smbd/globals.h"
27 #include "librpc/gen_ndr/messaging.h"
29 #include "libcli/auth/schannel.h"
32 #include "../librpc/gen_ndr/srv_dfs.h"
33 #include "../librpc/gen_ndr/srv_dssetup.h"
34 #include "../librpc/gen_ndr/srv_echo.h"
35 #include "../librpc/gen_ndr/srv_eventlog.h"
36 #include "../librpc/gen_ndr/srv_initshutdown.h"
37 #include "../librpc/gen_ndr/srv_lsa.h"
38 #include "../librpc/gen_ndr/srv_netlogon.h"
39 #include "../librpc/gen_ndr/srv_ntsvcs.h"
40 #include "../librpc/gen_ndr/srv_samr.h"
41 #include "../librpc/gen_ndr/srv_spoolss.h"
42 #include "../librpc/gen_ndr/srv_srvsvc.h"
43 #include "../librpc/gen_ndr/srv_svcctl.h"
44 #include "../librpc/gen_ndr/srv_winreg.h"
45 #include "../librpc/gen_ndr/srv_wkssvc.h"
47 #include "printing/nt_printing_migrate.h"
52 extern int dcelogin_atmost_once;
55 int smbd_server_fd(void)
60 static void smbd_set_server_fd(int fd)
62 smbd_server_conn->sock = fd;
66 struct event_context *smbd_event_context(void)
68 return server_event_context();
71 /*******************************************************************
72 What to do when smb.conf is updated.
73 ********************************************************************/
75 static void smb_conf_updated(struct messaging_context *msg,
78 struct server_id server_id,
81 DEBUG(10,("smb_conf_updated: Got message saying smb.conf was "
82 "updated. Reloading.\n"));
83 change_to_root_user();
84 reload_services(msg, smbd_server_fd(), False);
88 /*******************************************************************
89 Delete a statcache entry.
90 ********************************************************************/
92 static void smb_stat_cache_delete(struct messaging_context *msg,
95 struct server_id server_id,
98 const char *name = (const char *)data->data;
99 DEBUG(10,("smb_stat_cache_delete: delete name %s\n", name));
100 stat_cache_delete(name);
103 /****************************************************************************
104 Send a SIGTERM to our process group.
105 *****************************************************************************/
107 static void killkids(void)
109 if(am_parent) kill(0,SIGTERM);
112 /****************************************************************************
113 Process a sam sync message - not sure whether to do this here or
115 ****************************************************************************/
117 static void msg_sam_sync(struct messaging_context *msg,
120 struct server_id server_id,
123 DEBUG(10, ("** sam sync message received, ignoring\n"));
126 static void msg_exit_server(struct messaging_context *msg,
129 struct server_id server_id,
132 DEBUG(3, ("got a SHUTDOWN message\n"));
133 exit_server_cleanly(NULL);
137 static void msg_inject_fault(struct messaging_context *msg,
140 struct server_id src,
145 if (data->length != sizeof(sig)) {
146 DEBUG(0, ("Process %s sent bogus signal injection request\n",
147 procid_str_static(&src)));
151 sig = *(int *)data->data;
153 exit_server("internal error injected");
158 DEBUG(0, ("Process %s requested injection of signal %d (%s)\n",
159 procid_str_static(&src), sig, strsignal(sig)));
161 DEBUG(0, ("Process %s requested injection of signal %d\n",
162 procid_str_static(&src), sig));
165 kill(sys_getpid(), sig);
167 #endif /* DEVELOPER */
170 * Parent smbd process sets its own debug level first and then
171 * sends a message to all the smbd children to adjust their debug
172 * level to that of the parent.
175 static void smbd_msg_debug(struct messaging_context *msg_ctx,
178 struct server_id server_id,
181 struct child_pid *child;
183 debug_message(msg_ctx, private_data, MSG_DEBUG, server_id, data);
185 for (child = children; child != NULL; child = child->next) {
186 messaging_send_buf(msg_ctx, pid_to_procid(child->pid),
189 strlen((char *) data->data) + 1);
193 static void add_child_pid(pid_t pid)
195 struct child_pid *child;
197 child = SMB_MALLOC_P(struct child_pid);
199 DEBUG(0, ("Could not add child struct -- malloc failed\n"));
203 DLIST_ADD(children, child);
208 at most every smbd:cleanuptime seconds (default 20), we scan the BRL
209 and locking database for entries to cleanup. As a side effect this
210 also cleans up dead entries in the connections database (due to the
211 traversal in message_send_all()
213 Using a timer for this prevents a flood of traversals when a large
214 number of clients disconnect at the same time (perhaps due to a
218 static void cleanup_timeout_fn(struct event_context *event_ctx,
219 struct timed_event *te,
223 struct timed_event **cleanup_te = (struct timed_event **)private_data;
225 DEBUG(1,("Cleaning up brl and lock database after unclean shutdown\n"));
226 message_send_all(smbd_messaging_context(), MSG_SMB_UNLOCK, NULL, 0, NULL);
227 messaging_send_buf(smbd_messaging_context(), procid_self(),
228 MSG_SMB_BRL_VALIDATE, NULL, 0);
229 /* mark the cleanup as having been done */
230 (*cleanup_te) = NULL;
233 static void remove_child_pid(pid_t pid, bool unclean_shutdown)
235 struct child_pid *child;
236 static struct timed_event *cleanup_te;
237 struct server_id child_id;
239 if (unclean_shutdown) {
240 /* a child terminated uncleanly so tickle all
241 processes to see if they can grab any of the
244 DEBUG(3,(__location__ " Unclean shutdown of pid %u\n",
247 /* call the cleanup timer, but not too often */
248 int cleanup_time = lp_parm_int(-1, "smbd", "cleanuptime", 20);
249 cleanup_te = event_add_timed(smbd_event_context(), NULL,
250 timeval_current_ofs(cleanup_time, 0),
253 DEBUG(1,("Scheduled cleanup of brl and lock database after unclean shutdown\n"));
257 child_id = procid_self(); /* Just initialize pid and potentially vnn */
260 if (!serverid_deregister(child_id)) {
261 DEBUG(1, ("Could not remove pid %d from serverid.tdb\n",
265 for (child = children; child != NULL; child = child->next) {
266 if (child->pid == pid) {
267 struct child_pid *tmp = child;
268 DLIST_REMOVE(children, child);
275 DEBUG(0, ("Could not find child %d -- ignoring\n", (int)pid));
278 /****************************************************************************
279 Have we reached the process limit ?
280 ****************************************************************************/
282 static bool allowable_number_of_smbd_processes(void)
284 int max_processes = lp_max_smbd_processes();
289 return num_children < max_processes;
292 static void smbd_sig_chld_handler(struct tevent_context *ev,
293 struct tevent_signal *se,
302 while ((pid = sys_waitpid(-1, &status, WNOHANG)) > 0) {
303 bool unclean_shutdown = False;
305 /* If the child terminated normally, assume
306 it was an unclean shutdown unless the
309 if (WIFEXITED(status)) {
310 unclean_shutdown = WEXITSTATUS(status);
312 /* If the child terminated due to a signal
313 we always assume it was unclean.
315 if (WIFSIGNALED(status)) {
316 unclean_shutdown = True;
318 remove_child_pid(pid, unclean_shutdown);
322 static void smbd_setup_sig_chld_handler(void)
324 struct tevent_signal *se;
326 se = tevent_add_signal(smbd_event_context(),
327 smbd_event_context(),
329 smbd_sig_chld_handler,
332 exit_server("failed to setup SIGCHLD handler");
336 struct smbd_open_socket;
338 struct smbd_parent_context {
341 /* the list of listening sockets */
342 struct smbd_open_socket *sockets;
345 struct smbd_open_socket {
346 struct smbd_open_socket *prev, *next;
347 struct smbd_parent_context *parent;
349 struct tevent_fd *fde;
352 static void smbd_open_socket_close_fn(struct tevent_context *ev,
353 struct tevent_fd *fde,
357 /* this might be the socket_wrapper swrap_close() */
361 static void smbd_accept_connection(struct tevent_context *ev,
362 struct tevent_fd *fde,
366 struct smbd_open_socket *s = talloc_get_type_abort(private_data,
367 struct smbd_open_socket);
368 struct sockaddr_storage addr;
369 socklen_t in_addrlen = sizeof(addr);
373 smbd_set_server_fd(accept(s->fd, (struct sockaddr *)(void *)&addr,&in_addrlen));
375 if (smbd_server_fd() == -1 && errno == EINTR)
378 if (smbd_server_fd() == -1) {
379 DEBUG(0,("open_sockets_smbd: accept: %s\n",
384 if (s->parent->interactive) {
385 smbd_process(smbd_server_conn);
386 exit_server_cleanly("end of interactive mode");
390 if (!allowable_number_of_smbd_processes()) {
391 close(smbd_server_fd());
392 smbd_set_server_fd(-1);
397 * Generate a unique id in the parent process so that we use
398 * the global random state in the parent.
400 generate_random_buffer((uint8_t *)&unique_id, sizeof(unique_id));
404 NTSTATUS status = NT_STATUS_OK;
409 set_my_unique_id(unique_id);
411 /* Stop zombies, the parent explicitly handles
412 * them, counting worker smbds. */
415 /* close our standard file
417 close_low_fds(False);
420 * Can't use TALLOC_FREE here. Nulling out the argument to it
421 * would overwrite memory we've just freed.
423 talloc_free(s->parent);
426 status = reinit_after_fork(smbd_messaging_context(),
427 smbd_event_context(), procid_self(),
429 if (!NT_STATUS_IS_OK(status)) {
430 if (NT_STATUS_EQUAL(status,
431 NT_STATUS_TOO_MANY_OPENED_FILES)) {
432 DEBUG(0,("child process cannot initialize "
433 "because too many files are open\n"));
436 DEBUG(0,("reinit_after_fork() failed\n"));
437 smb_panic("reinit_after_fork() failed");
440 smbd_setup_sig_term_handler();
441 smbd_setup_sig_hup_handler(server_event_context(),
442 server_messaging_context());
444 if (!serverid_register(procid_self(),
445 FLAG_MSG_GENERAL|FLAG_MSG_SMBD
447 |FLAG_MSG_PRINT_GENERAL)) {
448 exit_server_cleanly("Could not register myself in "
452 smbd_process(smbd_server_conn);
454 exit_server_cleanly("end of child");
459 DEBUG(0,("smbd_accept_connection: sys_fork() failed: %s\n",
463 /* The parent doesn't need this socket */
464 close(smbd_server_fd());
466 /* Sun May 6 18:56:14 2001 ackley@cs.unm.edu:
467 Clear the closed fd info out of server_fd --
468 and more importantly, out of client_fd in
469 util_sock.c, to avoid a possible
470 getpeername failure if we reopen the logs
471 and use %I in the filename.
474 smbd_set_server_fd(-1);
480 /* Force parent to check log size after
481 * spawning child. Fix from
482 * klausr@ITAP.Physik.Uni-Stuttgart.De. The
483 * parent smbd will log to logserver.smb. It
484 * writes only two messages for each child
485 * started/finished. But each child writes,
486 * say, 50 messages also in logserver.smb,
487 * begining with the debug_count of the
488 * parent, before the child opens its own log
489 * file logserver.client. In a worst case
490 * scenario the size of logserver.smb would be
491 * checked after about 50*50=2500 messages
494 force_check_log_size();
497 static bool smbd_open_one_socket(struct smbd_parent_context *parent,
498 const struct sockaddr_storage *ifss,
501 struct smbd_open_socket *s;
503 s = talloc(parent, struct smbd_open_socket);
509 s->fd = open_socket_in(SOCK_STREAM,
511 parent->sockets == NULL ? 0 : 2,
515 DEBUG(0,("smbd_open_once_socket: open_socket_in: "
516 "%s\n", strerror(errno)));
519 * We ignore an error here, as we've done before
524 /* ready to listen */
525 set_socket_options(s->fd, "SO_KEEPALIVE");
526 set_socket_options(s->fd, lp_socket_options());
528 /* Set server socket to
529 * non-blocking for the accept. */
530 set_blocking(s->fd, False);
532 if (listen(s->fd, SMBD_LISTEN_BACKLOG) == -1) {
533 DEBUG(0,("open_sockets_smbd: listen: "
534 "%s\n", strerror(errno)));
540 s->fde = tevent_add_fd(smbd_event_context(),
542 s->fd, TEVENT_FD_READ,
543 smbd_accept_connection,
546 DEBUG(0,("open_sockets_smbd: "
547 "tevent_add_fd: %s\n",
553 tevent_fd_set_close_fn(s->fde, smbd_open_socket_close_fn);
555 DLIST_ADD_END(parent->sockets, s, struct smbd_open_socket *);
560 /****************************************************************************
561 Open the socket communication.
562 ****************************************************************************/
564 static bool open_sockets_smbd(struct smbd_parent_context *parent,
565 const char *smb_ports)
567 int num_interfaces = iface_count();
570 unsigned dns_port = 0;
577 smbd_setup_sig_chld_handler();
579 /* use a reasonable default set of ports - listing on 445 and 139 */
581 ports = lp_smb_ports();
582 if (!ports || !*ports) {
583 ports = talloc_strdup(talloc_tos(), SMB_PORTS);
585 ports = talloc_strdup(talloc_tos(), ports);
588 ports = talloc_strdup(talloc_tos(), smb_ports);
591 if (lp_interfaces() && lp_bind_interfaces_only()) {
592 /* We have been given an interfaces line, and been
593 told to only bind to those interfaces. Create a
594 socket per interface and bind to only these.
597 /* Now open a listen socket for each of the
599 for(i = 0; i < num_interfaces; i++) {
600 const struct sockaddr_storage *ifss =
601 iface_n_sockaddr_storage(i);
606 DEBUG(0,("open_sockets_smbd: "
607 "interface %d has NULL IP address !\n",
613 next_token_talloc(talloc_tos(),&ptr, &tok, " \t,");) {
614 unsigned port = atoi(tok);
615 if (port == 0 || port > 0xffff) {
619 if (!smbd_open_one_socket(parent, ifss, port)) {
625 /* Just bind to 0.0.0.0 - accept connections
630 const char *sock_addr = lp_socket_address();
632 const char *sock_ptr;
634 if (strequal(sock_addr, "0.0.0.0") ||
635 strequal(sock_addr, "::")) {
637 sock_addr = "::,0.0.0.0";
639 sock_addr = "0.0.0.0";
643 for (sock_ptr=sock_addr;
644 next_token_talloc(talloc_tos(), &sock_ptr, &sock_tok, " \t,"); ) {
645 for (ptr=ports; next_token_talloc(talloc_tos(), &ptr, &tok, " \t,"); ) {
646 struct sockaddr_storage ss;
648 unsigned port = atoi(tok);
649 if (port == 0 || port > 0xffff) {
653 /* Keep the first port for mDNS service
660 /* open an incoming socket */
661 if (!interpret_string_addr(&ss, sock_tok,
662 AI_NUMERICHOST|AI_PASSIVE)) {
666 if (!smbd_open_one_socket(parent, &ss, port)) {
673 if (parent->sockets == NULL) {
674 DEBUG(0,("open_sockets_smbd: No "
675 "sockets available to bind to.\n"));
679 /* Setup the main smbd so that we can get messages. Note that
680 do this after starting listening. This is needed as when in
681 clustered mode, ctdb won't allow us to start doing database
682 operations until it has gone thru a full startup, which
683 includes checking to see that smbd is listening. */
685 if (!serverid_register(procid_self(),
686 FLAG_MSG_GENERAL|FLAG_MSG_SMBD
688 DEBUG(0, ("open_sockets_smbd: Failed to register "
689 "myself in serverid.tdb\n"));
693 /* Listen to messages */
695 messaging_register(smbd_messaging_context(), NULL,
696 MSG_SMB_SAM_SYNC, msg_sam_sync);
697 messaging_register(smbd_messaging_context(), NULL,
698 MSG_SHUTDOWN, msg_exit_server);
699 messaging_register(smbd_messaging_context(), NULL,
700 MSG_SMB_FILE_RENAME, msg_file_was_renamed);
701 messaging_register(smbd_messaging_context(), NULL,
702 MSG_SMB_CONF_UPDATED, smb_conf_updated);
703 messaging_register(smbd_messaging_context(), NULL,
704 MSG_SMB_STAT_CACHE_DELETE, smb_stat_cache_delete);
705 messaging_register(smbd_messaging_context(), NULL,
706 MSG_DEBUG, smbd_msg_debug);
707 brl_register_msgs(smbd_messaging_context());
709 #ifdef CLUSTER_SUPPORT
710 if (lp_clustering()) {
711 ctdbd_register_reconfigure(
712 messaging_ctdbd_connection(procid_self()));
717 messaging_register(smbd_messaging_context(), NULL,
718 MSG_SMB_INJECT_FAULT, msg_inject_fault);
722 #ifdef WITH_DNSSD_SUPPORT
723 smbd_setup_mdns_registration(smbd_event_context(),
726 #ifdef WITH_AVAHI_SUPPORT
729 avahi_conn = avahi_start_register(
730 smbd_event_context(), smbd_event_context(), dns_port);
731 if (avahi_conn == NULL) {
732 DEBUG(10, ("avahi_start_register failed\n"));
740 static void smbd_parent_loop(struct smbd_parent_context *parent)
742 /* now accept incoming connections - forking a new process
743 for each incoming connection */
744 DEBUG(2,("waiting for connections\n"));
747 TALLOC_CTX *frame = talloc_stackframe();
749 ret = tevent_loop_once(smbd_event_context());
751 exit_server_cleanly("tevent_loop_once() error");
757 /* NOTREACHED return True; */
761 /****************************************************************************
762 Initialise connect, service and file structs.
763 ****************************************************************************/
765 static bool init_structs(void )
768 * Set the machine NETBIOS name if not already
769 * set from the config file.
783 static bool spoolss_init_cb(void *ptr)
785 struct messaging_context *msg_ctx = talloc_get_type_abort(
786 ptr, struct messaging_context);
787 return nt_printing_tdb_migrate(msg_ctx);
790 /****************************************************************************
792 ****************************************************************************/
794 /* Declare prototype for build_options() to avoid having to run it through
795 mkproto.h. Mixing $(builddir) and $(srcdir) source files in the current
796 prototype generation system is too complicated. */
798 extern void build_options(bool screen);
800 int main(int argc,const char *argv[])
802 /* shall I run as a daemon */
803 bool is_daemon = false;
804 bool interactive = false;
806 bool no_process_group = false;
807 bool log_stdout = false;
809 char *profile_level = NULL;
812 bool print_build_options = False;
817 OPT_NO_PROCESS_GROUP,
820 struct poptOption long_options[] = {
822 {"daemon", 'D', POPT_ARG_NONE, NULL, OPT_DAEMON, "Become a daemon (default)" },
823 {"interactive", 'i', POPT_ARG_NONE, NULL, OPT_INTERACTIVE, "Run interactive (not a daemon)"},
824 {"foreground", 'F', POPT_ARG_NONE, NULL, OPT_FORK, "Run daemon in foreground (for daemontools, etc.)" },
825 {"no-process-group", '\0', POPT_ARG_NONE, NULL, OPT_NO_PROCESS_GROUP, "Don't create a new process group" },
826 {"log-stdout", 'S', POPT_ARG_NONE, NULL, OPT_LOG_STDOUT, "Log to stdout" },
827 {"build-options", 'b', POPT_ARG_NONE, NULL, 'b', "Print build options" },
828 {"port", 'p', POPT_ARG_STRING, &ports, 0, "Listen on the specified ports"},
829 {"profiling-level", 'P', POPT_ARG_STRING, &profile_level, 0, "Set profiling level","PROFILE_LEVEL"},
831 POPT_COMMON_DYNCONFIG
834 struct smbd_parent_context *parent = NULL;
835 TALLOC_CTX *frame = talloc_stackframe(); /* Setup tos. */
838 struct rpc_srv_callbacks spoolss_cb;
840 /* Initialize the event context, it will panic on error */
841 smbd_event_context();
847 #ifdef HAVE_SET_AUTH_PARAMETERS
848 set_auth_parameters(argc,argv);
851 pc = poptGetContext("smbd", argc, argv, long_options, 0);
852 while((opt = poptGetNextOpt(pc)) != -1) {
857 case OPT_INTERACTIVE:
863 case OPT_NO_PROCESS_GROUP:
864 no_process_group = true;
870 print_build_options = True;
873 d_fprintf(stderr, "\nInvalid option %s: %s\n\n",
874 poptBadOption(pc, 0), poptStrerror(opt));
875 poptPrintUsage(pc, stderr, 0);
886 setup_logging(argv[0],log_stdout);
888 if (print_build_options) {
889 build_options(True); /* Display output to screen as well as debug */
896 /* needed for SecureWare on SCO */
900 set_remote_machine_name("smbd", False);
902 if (interactive && (DEBUGLEVEL >= 9)) {
903 talloc_enable_leak_report();
906 if (log_stdout && Fork) {
907 DEBUG(0,("ERROR: Can't log to stdout (-S) unless daemon is in foreground (-F) or interactive (-i)\n"));
911 /* we want to re-seed early to prevent time delays causing
912 client problems at a later date. (tridge) */
913 generate_random_buffer(NULL, 0);
915 /* get initial effective uid and gid */
918 /* make absolutely sure we run as root - to handle cases where people
919 are crazy enough to have it setuid */
920 gain_root_privilege();
921 gain_root_group_privilege();
923 fault_setup((void (*)(void *))exit_server_fault);
924 dump_core_setup("smbd");
926 /* we are never interested in SIGPIPE */
927 BlockSignals(True,SIGPIPE);
930 /* we are never interested in SIGFPE */
931 BlockSignals(True,SIGFPE);
935 /* We are no longer interested in USR2 */
936 BlockSignals(True,SIGUSR2);
939 /* POSIX demands that signals are inherited. If the invoking process has
940 * these signals masked, we will have problems, as we won't recieve them. */
941 BlockSignals(False, SIGHUP);
942 BlockSignals(False, SIGUSR1);
943 BlockSignals(False, SIGTERM);
945 /* Ensure we leave no zombies until we
946 * correctly set up child handling below. */
950 /* we want total control over the permissions on created files,
951 so set our umask to 0 */
956 DEBUG(0,("smbd version %s started.\n", samba_version_string()));
957 DEBUGADD(0,("%s\n", COPYRIGHT_STARTUP_MESSAGE));
959 DEBUG(2,("uid=%d gid=%d euid=%d egid=%d\n",
960 (int)getuid(),(int)getgid(),(int)geteuid(),(int)getegid()));
962 /* Output the build options to the debug log */
963 build_options(False);
965 if (sizeof(uint16) < 2 || sizeof(uint32) < 4) {
966 DEBUG(0,("ERROR: Samba is not configured correctly for the word size on your machine\n"));
970 if (!lp_load_initial_only(get_dyn_CONFIGFILE())) {
971 DEBUG(0, ("error opening config file\n"));
975 /* Init the security context and global current_user */
978 if (smbd_messaging_context() == NULL)
982 * Reloading of the printers will not work here as we don't have a
983 * server info and rpc services set up. It will be called later.
985 if (!reload_services(smbd_messaging_context(), smbd_server_fd(),
990 /* ...NOTE... Log files are working from this point! */
992 DEBUG(3,("loaded services\n"));
997 if (!profile_setup(smbd_messaging_context(), False)) {
998 DEBUG(0,("ERROR: failed to setup profiling\n"));
1001 if (profile_level != NULL) {
1002 int pl = atoi(profile_level);
1003 struct server_id src;
1005 DEBUG(1, ("setting profiling level: %s\n",profile_level));
1007 set_profile_level(pl, src);
1011 if (!is_daemon && !is_a_socket(0)) {
1013 DEBUG(0,("standard input is not a socket, assuming -D option\n"));
1016 * Setting is_daemon here prevents us from eventually calling
1017 * the open_sockets_inetd()
1023 if (is_daemon && !interactive) {
1024 DEBUG( 3, ( "Becoming a daemon.\n" ) );
1025 become_daemon(Fork, no_process_group, log_stdout);
1028 generate_random_buffer((uint8_t *)&unique_id, sizeof(unique_id));
1029 set_my_unique_id(unique_id);
1033 * If we're interactive we want to set our own process group for
1034 * signal management.
1036 if (interactive && !no_process_group)
1037 setpgid( (pid_t)0, (pid_t)0);
1040 if (!directory_exist(lp_lockdir()))
1041 mkdir(lp_lockdir(), 0755);
1044 pidfile_create("smbd");
1046 status = reinit_after_fork(smbd_messaging_context(),
1047 smbd_event_context(),
1048 procid_self(), false);
1049 if (!NT_STATUS_IS_OK(status)) {
1050 DEBUG(0,("reinit_after_fork() failed\n"));
1054 smbd_server_conn->msg_ctx = smbd_messaging_context();
1056 smbd_setup_sig_term_handler();
1057 smbd_setup_sig_hup_handler(smbd_event_context(),
1058 smbd_server_conn->msg_ctx);
1060 /* Setup all the TDB's - including CLEAR_IF_FIRST tdb's. */
1062 if (smbd_memcache() == NULL) {
1066 memcache_set_global(smbd_memcache());
1068 /* Initialise the password backed before the global_sam_sid
1069 to ensure that we fetch from ldap before we make a domain sid up */
1071 if(!initialize_password_db(False, smbd_event_context()))
1074 if (!secrets_init()) {
1075 DEBUG(0, ("ERROR: smbd can not open secrets.tdb\n"));
1079 if (lp_server_role() == ROLE_DOMAIN_BDC || lp_server_role() == ROLE_DOMAIN_PDC) {
1080 if (!open_schannel_session_store(NULL, lp_private_dir())) {
1081 DEBUG(0,("ERROR: Samba cannot open schannel store for secured NETLOGON operations.\n"));
1086 if(!get_global_sam_sid()) {
1087 DEBUG(0,("ERROR: Samba cannot create a SAM SID.\n"));
1091 if (!sessionid_init()) {
1095 if (!connections_init(True))
1098 if (!locking_init())
1101 if (!messaging_tdb_parent_init()) {
1105 if (!notify_internal_parent_init()) {
1109 if (!serverid_parent_init()) {
1113 if (!W_ERROR_IS_OK(registry_init_full()))
1116 if (!print_backend_init(smbd_messaging_context()))
1120 if (!init_svcctl_db())
1124 /* Open the share_info.tdb here, so we don't have to open
1125 after the fork on every single connection. This is a small
1126 performance improvment and reduces the total number of system
1128 if (!share_info_db_init()) {
1129 DEBUG(0,("ERROR: failed to load share info db.\n"));
1133 if (!init_system_info()) {
1134 DEBUG(0,("ERROR: failed to setup system user info.\n"));
1138 if (!init_guest_info()) {
1139 DEBUG(0,("ERROR: failed to setup guest info.\n"));
1144 * Initialize spoolss with an init function to convert printers first.
1145 * static_init_rpc will try to initialize the spoolss server too but you
1146 * can't register it twice.
1148 spoolss_cb.init = spoolss_init_cb;
1149 spoolss_cb.shutdown = NULL;
1150 spoolss_cb.private_data = smbd_server_conn->msg_ctx;
1152 /* Spoolss depends on a winreg pipe, so start it first. */
1153 if (!NT_STATUS_IS_OK(rpc_winreg_init(NULL))) {
1157 if (!NT_STATUS_IS_OK(rpc_spoolss_init(&spoolss_cb))) {
1163 /* Publish nt printers, this requires a working winreg pipe */
1164 reload_printers(smbd_messaging_context());
1166 /* only start the background queue daemon if we are
1167 running as a daemon -- bad things will happen if
1168 smbd is launched via inetd and we fork a copy of
1171 if (is_daemon && !interactive
1172 && lp_parm_bool(-1, "smbd", "backgroundqueue", true)) {
1173 start_background_queue(smbd_event_context(),
1174 smbd_messaging_context());
1181 /* Started from inetd. fd 0 is the socket. */
1182 /* We will abort gracefully when the client or remote system
1184 smbd_set_server_fd(dup(0));
1186 /* close our standard file descriptors */
1187 close_low_fds(False); /* Don't close stderr */
1194 smbd_setup_sig_chld_handler();
1196 smbd_process(smbd_server_conn);
1198 exit_server_cleanly(NULL);
1202 parent = talloc_zero(smbd_event_context(), struct smbd_parent_context);
1204 exit_server("talloc(struct smbd_parent_context) failed");
1206 parent->interactive = interactive;
1208 if (!open_sockets_smbd(parent, ports))
1209 exit_server("open_sockets_smbd() failed");
1212 /* make sure we always have a valid stackframe */
1213 frame = talloc_stackframe();
1215 smbd_parent_loop(parent);
1217 exit_server_cleanly(NULL);