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"
33 #include "ctdbd_conn.h"
34 #include "printing/queue_process.h"
35 #include "rpc_server/rpc_service_setup.h"
36 #include "rpc_server/rpc_config.h"
41 #include "smbprofile.h"
42 #include "lib/id_cache.h"
43 #include "lib/param/param.h"
45 extern void start_epmd(struct tevent_context *ev_ctx,
46 struct messaging_context *msg_ctx);
48 extern void start_lsasd(struct event_context *ev_ctx,
49 struct messaging_context *msg_ctx);
52 extern int dcelogin_atmost_once;
55 /*******************************************************************
56 What to do when smb.conf is updated.
57 ********************************************************************/
59 static void smb_conf_updated(struct messaging_context *msg,
62 struct server_id server_id,
65 struct tevent_context *ev_ctx =
66 talloc_get_type_abort(private_data, struct tevent_context);
67 struct smbd_server_connection *sconn = msg_ctx_to_sconn(msg);
69 DEBUG(10,("smb_conf_updated: Got message saying smb.conf was "
70 "updated. Reloading.\n"));
71 change_to_root_user();
72 reload_services(msg, sconn->sock, False);
74 printing_subsystem_update(ev_ctx, msg, false);
78 /*******************************************************************
79 What to do when printcap is updated.
80 ********************************************************************/
82 static void smb_pcap_updated(struct messaging_context *msg,
85 struct server_id server_id,
88 struct tevent_context *ev_ctx =
89 talloc_get_type_abort(private_data, struct tevent_context);
91 DEBUG(10,("Got message saying pcap was updated. Reloading.\n"));
92 change_to_root_user();
93 delete_and_reload_printers(ev_ctx, msg);
96 /*******************************************************************
97 Delete a statcache entry.
98 ********************************************************************/
100 static void smb_stat_cache_delete(struct messaging_context *msg,
103 struct server_id server_id,
106 const char *name = (const char *)data->data;
107 DEBUG(10,("smb_stat_cache_delete: delete name %s\n", name));
108 stat_cache_delete(name);
111 /****************************************************************************
112 Send a SIGTERM to our process group.
113 *****************************************************************************/
115 static void killkids(void)
117 if(am_parent) kill(0,SIGTERM);
120 /****************************************************************************
121 Process a sam sync message - not sure whether to do this here or
123 ****************************************************************************/
125 static void msg_sam_sync(struct messaging_context *msg,
128 struct server_id server_id,
131 DEBUG(10, ("** sam sync message received, ignoring\n"));
134 static void msg_exit_server(struct messaging_context *msg,
137 struct server_id server_id,
140 DEBUG(3, ("got a SHUTDOWN message\n"));
141 exit_server_cleanly(NULL);
145 static void msg_inject_fault(struct messaging_context *msg,
148 struct server_id src,
153 if (data->length != sizeof(sig)) {
154 DEBUG(0, ("Process %s sent bogus signal injection request\n",
155 procid_str_static(&src)));
159 sig = *(int *)data->data;
161 exit_server("internal error injected");
166 DEBUG(0, ("Process %s requested injection of signal %d (%s)\n",
167 procid_str_static(&src), sig, strsignal(sig)));
169 DEBUG(0, ("Process %s requested injection of signal %d\n",
170 procid_str_static(&src), sig));
173 kill(sys_getpid(), sig);
175 #endif /* DEVELOPER */
177 NTSTATUS messaging_send_to_children(struct messaging_context *msg_ctx,
178 uint32_t msg_type, DATA_BLOB* data)
181 struct child_pid *child;
183 for (child = children; child != NULL; child = child->next) {
184 status = messaging_send(msg_ctx, pid_to_procid(child->pid),
186 if (!NT_STATUS_IS_OK(status)) {
194 * Parent smbd process sets its own debug level first and then
195 * sends a message to all the smbd children to adjust their debug
196 * level to that of the parent.
199 static void smbd_msg_debug(struct messaging_context *msg_ctx,
202 struct server_id server_id,
205 debug_message(msg_ctx, private_data, MSG_DEBUG, server_id, data);
207 messaging_send_to_children(msg_ctx, MSG_DEBUG, data);
210 static void add_child_pid(pid_t pid)
212 struct child_pid *child;
214 child = SMB_MALLOC_P(struct child_pid);
216 DEBUG(0, ("Could not add child struct -- malloc failed\n"));
220 DLIST_ADD(children, child);
225 at most every smbd:cleanuptime seconds (default 20), we scan the BRL
226 and locking database for entries to cleanup. As a side effect this
227 also cleans up dead entries in the connections database (due to the
228 traversal in message_send_all()
230 Using a timer for this prevents a flood of traversals when a large
231 number of clients disconnect at the same time (perhaps due to a
235 static void cleanup_timeout_fn(struct event_context *event_ctx,
236 struct timed_event *te,
240 struct timed_event **cleanup_te = (struct timed_event **)private_data;
241 struct messaging_context *msg = smbd_messaging_context();
243 DEBUG(1,("Cleaning up brl and lock database after unclean shutdown\n"));
244 message_send_all(msg, MSG_SMB_UNLOCK, NULL, 0, NULL);
245 messaging_send_buf(msg, messaging_server_id(msg),
246 MSG_SMB_BRL_VALIDATE, NULL, 0);
247 /* mark the cleanup as having been done */
248 (*cleanup_te) = NULL;
251 static void remove_child_pid(struct tevent_context *ev_ctx,
253 bool unclean_shutdown)
255 struct child_pid *child;
256 static struct timed_event *cleanup_te;
257 struct server_id child_id;
259 if (unclean_shutdown) {
260 /* a child terminated uncleanly so tickle all
261 processes to see if they can grab any of the
264 DEBUG(3,(__location__ " Unclean shutdown of pid %u\n",
267 /* call the cleanup timer, but not too often */
268 int cleanup_time = lp_parm_int(-1, "smbd", "cleanuptime", 20);
269 cleanup_te = event_add_timed(ev_ctx, NULL,
270 timeval_current_ofs(cleanup_time, 0),
273 DEBUG(1,("Scheduled cleanup of brl and lock database after unclean shutdown\n"));
277 child_id = pid_to_procid(pid);
279 if (!serverid_deregister(child_id)) {
280 DEBUG(1, ("Could not remove pid %d from serverid.tdb\n",
284 for (child = children; child != NULL; child = child->next) {
285 if (child->pid == pid) {
286 struct child_pid *tmp = child;
287 DLIST_REMOVE(children, child);
294 /* not all forked child processes are added to the children list */
295 DEBUG(1, ("Could not find child %d -- ignoring\n", (int)pid));
298 /****************************************************************************
299 Have we reached the process limit ?
300 ****************************************************************************/
302 static bool allowable_number_of_smbd_processes(void)
304 int max_processes = lp_max_smbd_processes();
309 return num_children < max_processes;
312 static void smbd_sig_chld_handler(struct tevent_context *ev,
313 struct tevent_signal *se,
322 while ((pid = sys_waitpid(-1, &status, WNOHANG)) > 0) {
323 bool unclean_shutdown = False;
325 /* If the child terminated normally, assume
326 it was an unclean shutdown unless the
329 if (WIFEXITED(status)) {
330 unclean_shutdown = WEXITSTATUS(status);
332 /* If the child terminated due to a signal
333 we always assume it was unclean.
335 if (WIFSIGNALED(status)) {
336 unclean_shutdown = True;
338 remove_child_pid(ev, pid, unclean_shutdown);
342 static void smbd_setup_sig_chld_handler(struct tevent_context *ev_ctx)
344 struct tevent_signal *se;
346 se = tevent_add_signal(ev_ctx,
347 ev_ctx, /* mem_ctx */
349 smbd_sig_chld_handler,
352 exit_server("failed to setup SIGCHLD handler");
356 struct smbd_open_socket;
358 struct smbd_parent_context {
361 /* the list of listening sockets */
362 struct smbd_open_socket *sockets;
365 struct smbd_open_socket {
366 struct smbd_open_socket *prev, *next;
367 struct smbd_parent_context *parent;
369 struct tevent_fd *fde;
370 struct messaging_context *msg_ctx;
373 static void smbd_open_socket_close_fn(struct tevent_context *ev,
374 struct tevent_fd *fde,
378 /* this might be the socket_wrapper swrap_close() */
382 static void smbd_accept_connection(struct tevent_context *ev,
383 struct tevent_fd *fde,
387 struct smbd_open_socket *s = talloc_get_type_abort(private_data,
388 struct smbd_open_socket);
389 struct messaging_context *msg_ctx = s->msg_ctx;
390 struct smbd_server_connection *sconn = msg_ctx_to_sconn(msg_ctx);
391 struct sockaddr_storage addr;
392 socklen_t in_addrlen = sizeof(addr);
397 fd = accept(s->fd, (struct sockaddr *)(void *)&addr,&in_addrlen);
399 if (fd == -1 && errno == EINTR)
403 DEBUG(0,("open_sockets_smbd: accept: %s\n",
408 if (s->parent->interactive) {
409 smbd_process(ev, sconn);
410 exit_server_cleanly("end of interactive mode");
414 if (!allowable_number_of_smbd_processes()) {
421 * Generate a unique id in the parent process so that we use
422 * the global random state in the parent.
424 generate_random_buffer((uint8_t *)&unique_id, sizeof(unique_id));
428 NTSTATUS status = NT_STATUS_OK;
433 set_my_unique_id(unique_id);
435 /* Stop zombies, the parent explicitly handles
436 * them, counting worker smbds. */
439 /* close our standard file
441 if (!debug_get_output_is_stdout()) {
442 close_low_fds(False); /* Don't close stderr */
446 * Can't use TALLOC_FREE here. Nulling out the argument to it
447 * would overwrite memory we've just freed.
449 talloc_free(s->parent);
452 status = reinit_after_fork(msg_ctx,
455 if (!NT_STATUS_IS_OK(status)) {
456 if (NT_STATUS_EQUAL(status,
457 NT_STATUS_TOO_MANY_OPENED_FILES)) {
458 DEBUG(0,("child process cannot initialize "
459 "because too many files are open\n"));
462 if (lp_clustering() &&
463 NT_STATUS_EQUAL(status,
464 NT_STATUS_INTERNAL_DB_ERROR)) {
465 DEBUG(1,("child process cannot initialize "
466 "because connection to CTDB "
471 DEBUG(0,("reinit_after_fork() failed\n"));
472 smb_panic("reinit_after_fork() failed");
475 smbd_setup_sig_term_handler();
476 smbd_setup_sig_hup_handler(ev,
479 if (!serverid_register(messaging_server_id(msg_ctx),
480 FLAG_MSG_GENERAL|FLAG_MSG_SMBD
482 |FLAG_MSG_PRINT_GENERAL)) {
483 exit_server_cleanly("Could not register myself in "
487 smbd_process(ev, sconn);
489 exit_server_cleanly("end of child");
494 DEBUG(0,("smbd_accept_connection: sys_fork() failed: %s\n",
498 /* The parent doesn't need this socket */
501 /* Sun May 6 18:56:14 2001 ackley@cs.unm.edu:
502 Clear the closed fd info out of server_fd --
503 and more importantly, out of client_fd in
504 util_sock.c, to avoid a possible
505 getpeername failure if we reopen the logs
506 and use %I in the filename.
514 /* Force parent to check log size after
515 * spawning child. Fix from
516 * klausr@ITAP.Physik.Uni-Stuttgart.De. The
517 * parent smbd will log to logserver.smb. It
518 * writes only two messages for each child
519 * started/finished. But each child writes,
520 * say, 50 messages also in logserver.smb,
521 * begining with the debug_count of the
522 * parent, before the child opens its own log
523 * file logserver.client. In a worst case
524 * scenario the size of logserver.smb would be
525 * checked after about 50*50=2500 messages
528 force_check_log_size();
531 static bool smbd_open_one_socket(struct smbd_parent_context *parent,
532 struct tevent_context *ev_ctx,
533 struct messaging_context *msg_ctx,
534 const struct sockaddr_storage *ifss,
537 struct smbd_open_socket *s;
539 s = talloc(parent, struct smbd_open_socket);
545 s->fd = open_socket_in(SOCK_STREAM,
547 parent->sockets == NULL ? 0 : 2,
551 DEBUG(0,("smbd_open_once_socket: open_socket_in: "
552 "%s\n", strerror(errno)));
555 * We ignore an error here, as we've done before
560 /* ready to listen */
561 set_socket_options(s->fd, "SO_KEEPALIVE");
562 set_socket_options(s->fd, lp_socket_options());
564 /* Set server socket to
565 * non-blocking for the accept. */
566 set_blocking(s->fd, False);
568 if (listen(s->fd, SMBD_LISTEN_BACKLOG) == -1) {
569 DEBUG(0,("open_sockets_smbd: listen: "
570 "%s\n", strerror(errno)));
576 s->msg_ctx = msg_ctx;
577 s->fde = tevent_add_fd(ev_ctx,
579 s->fd, TEVENT_FD_READ,
580 smbd_accept_connection,
583 DEBUG(0,("open_sockets_smbd: "
584 "tevent_add_fd: %s\n",
590 tevent_fd_set_close_fn(s->fde, smbd_open_socket_close_fn);
592 DLIST_ADD_END(parent->sockets, s, struct smbd_open_socket *);
597 /****************************************************************************
598 Open the socket communication.
599 ****************************************************************************/
601 static bool open_sockets_smbd(struct smbd_parent_context *parent,
602 struct tevent_context *ev_ctx,
603 struct messaging_context *msg_ctx,
604 const char *smb_ports)
606 int num_interfaces = iface_count();
609 unsigned dns_port = 0;
616 smbd_setup_sig_chld_handler(ev_ctx);
618 /* use a reasonable default set of ports - listing on 445 and 139 */
620 ports = lp_smb_ports();
621 if (!ports || !*ports) {
622 ports = talloc_strdup(talloc_tos(), SMB_PORTS);
624 ports = talloc_strdup(talloc_tos(), ports);
627 ports = talloc_strdup(talloc_tos(), smb_ports);
630 if (lp_interfaces() && lp_bind_interfaces_only()) {
631 /* We have been given an interfaces line, and been
632 told to only bind to those interfaces. Create a
633 socket per interface and bind to only these.
636 /* Now open a listen socket for each of the
638 for(i = 0; i < num_interfaces; i++) {
639 const struct sockaddr_storage *ifss =
640 iface_n_sockaddr_storage(i);
645 DEBUG(0,("open_sockets_smbd: "
646 "interface %d has NULL IP address !\n",
652 next_token_talloc(talloc_tos(),&ptr, &tok, " \t,");) {
653 unsigned port = atoi(tok);
654 if (port == 0 || port > 0xffff) {
658 /* Keep the first port for mDNS service
665 if (!smbd_open_one_socket(parent,
675 /* Just bind to 0.0.0.0 - accept connections
680 const char *sock_addr = lp_socket_address();
682 const char *sock_ptr;
684 if (strequal(sock_addr, "0.0.0.0") ||
685 strequal(sock_addr, "::")) {
687 sock_addr = "::,0.0.0.0";
689 sock_addr = "0.0.0.0";
693 for (sock_ptr=sock_addr;
694 next_token_talloc(talloc_tos(), &sock_ptr, &sock_tok, " \t,"); ) {
695 for (ptr=ports; next_token_talloc(talloc_tos(), &ptr, &tok, " \t,"); ) {
696 struct sockaddr_storage ss;
698 unsigned port = atoi(tok);
699 if (port == 0 || port > 0xffff) {
703 /* Keep the first port for mDNS service
710 /* open an incoming socket */
711 if (!interpret_string_addr(&ss, sock_tok,
712 AI_NUMERICHOST|AI_PASSIVE)) {
716 if (!smbd_open_one_socket(parent,
727 if (parent->sockets == NULL) {
728 DEBUG(0,("open_sockets_smbd: No "
729 "sockets available to bind to.\n"));
733 /* Setup the main smbd so that we can get messages. Note that
734 do this after starting listening. This is needed as when in
735 clustered mode, ctdb won't allow us to start doing database
736 operations until it has gone thru a full startup, which
737 includes checking to see that smbd is listening. */
739 if (!serverid_register(messaging_server_id(msg_ctx),
740 FLAG_MSG_GENERAL|FLAG_MSG_SMBD
741 |FLAG_MSG_PRINT_GENERAL
743 DEBUG(0, ("open_sockets_smbd: Failed to register "
744 "myself in serverid.tdb\n"));
748 /* Listen to messages */
750 messaging_register(msg_ctx, NULL, MSG_SMB_SAM_SYNC, msg_sam_sync);
751 messaging_register(msg_ctx, NULL, MSG_SHUTDOWN, msg_exit_server);
752 messaging_register(msg_ctx, ev_ctx, MSG_SMB_CONF_UPDATED,
754 messaging_register(msg_ctx, NULL, MSG_SMB_STAT_CACHE_DELETE,
755 smb_stat_cache_delete);
756 messaging_register(msg_ctx, NULL, MSG_DEBUG, smbd_msg_debug);
757 messaging_register(msg_ctx, ev_ctx, MSG_PRINTER_PCAP,
759 brl_register_msgs(msg_ctx);
761 msg_idmap_register_msg(msg_ctx);
763 #ifdef CLUSTER_SUPPORT
764 if (lp_clustering()) {
765 ctdbd_register_reconfigure(messaging_ctdbd_connection());
770 messaging_register(msg_ctx, NULL, MSG_SMB_INJECT_FAULT,
774 if (lp_multicast_dns_register() && (dns_port != 0)) {
775 #ifdef WITH_DNSSD_SUPPORT
776 smbd_setup_mdns_registration(ev_ctx,
779 #ifdef WITH_AVAHI_SUPPORT
782 avahi_conn = avahi_start_register(ev_ctx,
785 if (avahi_conn == NULL) {
786 DEBUG(10, ("avahi_start_register failed\n"));
794 static void smbd_parent_loop(struct tevent_context *ev_ctx,
795 struct smbd_parent_context *parent)
797 /* now accept incoming connections - forking a new process
798 for each incoming connection */
799 DEBUG(2,("waiting for connections\n"));
802 TALLOC_CTX *frame = talloc_stackframe();
804 ret = tevent_loop_once(ev_ctx);
806 exit_server_cleanly("tevent_loop_once() error");
812 /* NOTREACHED return True; */
816 /****************************************************************************
817 Initialise connect, service and file structs.
818 ****************************************************************************/
820 static bool init_structs(void )
823 * Set the machine NETBIOS name if not already
824 * set from the config file.
836 /****************************************************************************
838 ****************************************************************************/
840 /* Declare prototype for build_options() to avoid having to run it through
841 mkproto.h. Mixing $(builddir) and $(srcdir) source files in the current
842 prototype generation system is too complicated. */
844 extern void build_options(bool screen);
846 int main(int argc,const char *argv[])
848 /* shall I run as a daemon */
849 bool is_daemon = false;
850 bool interactive = false;
852 bool no_process_group = false;
853 bool log_stdout = false;
855 char *profile_level = NULL;
858 bool print_build_options = False;
863 OPT_NO_PROCESS_GROUP,
866 struct poptOption long_options[] = {
868 {"daemon", 'D', POPT_ARG_NONE, NULL, OPT_DAEMON, "Become a daemon (default)" },
869 {"interactive", 'i', POPT_ARG_NONE, NULL, OPT_INTERACTIVE, "Run interactive (not a daemon)"},
870 {"foreground", 'F', POPT_ARG_NONE, NULL, OPT_FORK, "Run daemon in foreground (for daemontools, etc.)" },
871 {"no-process-group", '\0', POPT_ARG_NONE, NULL, OPT_NO_PROCESS_GROUP, "Don't create a new process group" },
872 {"log-stdout", 'S', POPT_ARG_NONE, NULL, OPT_LOG_STDOUT, "Log to stdout" },
873 {"build-options", 'b', POPT_ARG_NONE, NULL, 'b', "Print build options" },
874 {"port", 'p', POPT_ARG_STRING, &ports, 0, "Listen on the specified ports"},
875 {"profiling-level", 'P', POPT_ARG_STRING, &profile_level, 0, "Set profiling level","PROFILE_LEVEL"},
877 POPT_COMMON_DYNCONFIG
880 struct smbd_parent_context *parent = NULL;
884 struct tevent_context *ev_ctx;
885 struct messaging_context *msg_ctx;
888 * Do this before any other talloc operation
890 talloc_enable_null_tracking();
891 frame = talloc_stackframe();
893 setup_logging(argv[0], DEBUG_DEFAULT_STDOUT);
901 #ifdef HAVE_SET_AUTH_PARAMETERS
902 set_auth_parameters(argc,argv);
905 pc = poptGetContext("smbd", argc, argv, long_options, 0);
906 while((opt = poptGetNextOpt(pc)) != -1) {
911 case OPT_INTERACTIVE:
917 case OPT_NO_PROCESS_GROUP:
918 no_process_group = true;
924 print_build_options = True;
927 d_fprintf(stderr, "\nInvalid option %s: %s\n\n",
928 poptBadOption(pc, 0), poptStrerror(opt));
929 poptPrintUsage(pc, stderr, 0);
941 setup_logging(argv[0], DEBUG_STDOUT);
943 setup_logging(argv[0], DEBUG_FILE);
946 if (print_build_options) {
947 build_options(True); /* Display output to screen as well as debug */
952 /* needed for SecureWare on SCO */
956 set_remote_machine_name("smbd", False);
958 if (interactive && (DEBUGLEVEL >= 9)) {
959 talloc_enable_leak_report();
962 if (log_stdout && Fork) {
963 DEBUG(0,("ERROR: Can't log to stdout (-S) unless daemon is in foreground (-F) or interactive (-i)\n"));
967 /* we want to re-seed early to prevent time delays causing
968 client problems at a later date. (tridge) */
969 generate_random_buffer(NULL, 0);
971 /* get initial effective uid and gid */
974 /* make absolutely sure we run as root - to handle cases where people
975 are crazy enough to have it setuid */
976 gain_root_privilege();
977 gain_root_group_privilege();
980 dump_core_setup("smbd", lp_logfile());
982 /* we are never interested in SIGPIPE */
983 BlockSignals(True,SIGPIPE);
986 /* we are never interested in SIGFPE */
987 BlockSignals(True,SIGFPE);
991 /* We are no longer interested in USR2 */
992 BlockSignals(True,SIGUSR2);
995 /* POSIX demands that signals are inherited. If the invoking process has
996 * these signals masked, we will have problems, as we won't recieve them. */
997 BlockSignals(False, SIGHUP);
998 BlockSignals(False, SIGUSR1);
999 BlockSignals(False, SIGTERM);
1001 /* Ensure we leave no zombies until we
1002 * correctly set up child handling below. */
1006 /* we want total control over the permissions on created files,
1007 so set our umask to 0 */
1012 DEBUG(0,("smbd version %s started.\n", samba_version_string()));
1013 DEBUGADD(0,("%s\n", COPYRIGHT_STARTUP_MESSAGE));
1015 DEBUG(2,("uid=%d gid=%d euid=%d egid=%d\n",
1016 (int)getuid(),(int)getgid(),(int)geteuid(),(int)getegid()));
1018 /* Output the build options to the debug log */
1019 build_options(False);
1021 if (sizeof(uint16) < 2 || sizeof(uint32) < 4) {
1022 DEBUG(0,("ERROR: Samba is not configured correctly for the word size on your machine\n"));
1026 if (!lp_load_initial_only(get_dyn_CONFIGFILE())) {
1027 DEBUG(0, ("error opening config file '%s'\n", get_dyn_CONFIGFILE()));
1031 /* Init the security context and global current_user */
1035 * Initialize the event context. The event context needs to be
1036 * initialized before the messaging context, cause the messaging
1037 * context holds an event context.
1038 * FIXME: This should be s3_tevent_context_init()
1040 ev_ctx = server_event_context();
1041 if (ev_ctx == NULL) {
1046 * Init the messaging context
1047 * FIXME: This should only call messaging_init()
1049 msg_ctx = server_messaging_context();
1050 if (msg_ctx == NULL) {
1055 * Reloading of the printers will not work here as we don't have a
1056 * server info and rpc services set up. It will be called later.
1058 if (!reload_services(NULL, -1, False)) {
1062 /* ...NOTE... Log files are working from this point! */
1064 DEBUG(3,("loaded services\n"));
1069 if (!profile_setup(msg_ctx, False)) {
1070 DEBUG(0,("ERROR: failed to setup profiling\n"));
1073 if (profile_level != NULL) {
1074 int pl = atoi(profile_level);
1075 struct server_id src;
1077 DEBUG(1, ("setting profiling level: %s\n",profile_level));
1079 set_profile_level(pl, src);
1083 if (!is_daemon && !is_a_socket(0)) {
1085 DEBUG(0,("standard input is not a socket, assuming -D option\n"));
1088 * Setting is_daemon here prevents us from eventually calling
1089 * the open_sockets_inetd()
1095 if (is_daemon && !interactive) {
1096 DEBUG( 3, ( "Becoming a daemon.\n" ) );
1097 become_daemon(Fork, no_process_group, log_stdout);
1100 generate_random_buffer((uint8_t *)&unique_id, sizeof(unique_id));
1101 set_my_unique_id(unique_id);
1105 * If we're interactive we want to set our own process group for
1106 * signal management.
1108 if (interactive && !no_process_group)
1109 setpgid( (pid_t)0, (pid_t)0);
1112 if (!directory_exist(lp_lockdir()))
1113 mkdir(lp_lockdir(), 0755);
1116 pidfile_create("smbd");
1118 status = reinit_after_fork(msg_ctx,
1121 if (!NT_STATUS_IS_OK(status)) {
1122 DEBUG(0,("reinit_after_fork() failed\n"));
1126 smbd_server_conn->msg_ctx = msg_ctx;
1128 smbd_setup_sig_term_handler();
1129 smbd_setup_sig_hup_handler(ev_ctx,
1132 /* Setup all the TDB's - including CLEAR_IF_FIRST tdb's. */
1134 if (smbd_memcache() == NULL) {
1138 memcache_set_global(smbd_memcache());
1140 /* Initialise the password backed before the global_sam_sid
1141 to ensure that we fetch from ldap before we make a domain sid up */
1143 if(!initialize_password_db(false, ev_ctx))
1146 if (!secrets_init()) {
1147 DEBUG(0, ("ERROR: smbd can not open secrets.tdb\n"));
1151 if (lp_server_role() == ROLE_DOMAIN_BDC || lp_server_role() == ROLE_DOMAIN_PDC) {
1152 struct loadparm_context *lp_ctx = loadparm_init_s3(NULL, loadparm_s3_context());
1153 if (!open_schannel_session_store(NULL, lp_ctx)) {
1154 DEBUG(0,("ERROR: Samba cannot open schannel store for secured NETLOGON operations.\n"));
1157 TALLOC_FREE(lp_ctx);
1160 if(!get_global_sam_sid()) {
1161 DEBUG(0,("ERROR: Samba cannot create a SAM SID.\n"));
1165 if (!sessionid_init()) {
1169 if (!connections_init(True))
1172 if (!locking_init())
1175 if (!messaging_tdb_parent_init(ev_ctx)) {
1179 if (!notify_internal_parent_init(ev_ctx)) {
1183 if (!serverid_parent_init(ev_ctx)) {
1187 if (!W_ERROR_IS_OK(registry_init_full()))
1190 /* Open the share_info.tdb here, so we don't have to open
1191 after the fork on every single connection. This is a small
1192 performance improvment and reduces the total number of system
1194 if (!share_info_db_init()) {
1195 DEBUG(0,("ERROR: failed to load share info db.\n"));
1199 status = init_system_info();
1200 if (!NT_STATUS_IS_OK(status)) {
1201 DEBUG(1, ("ERROR: failed to setup system user info: %s.\n",
1202 nt_errstr(status)));
1206 if (!init_guest_info()) {
1207 DEBUG(0,("ERROR: failed to setup guest info.\n"));
1211 if (!file_init(smbd_server_conn)) {
1212 DEBUG(0, ("ERROR: file_init failed\n"));
1216 /* This MUST be done before start_epmd() because otherwise
1217 * start_epmd() forks and races against dcesrv_ep_setup() to
1218 * call directory_create_or_exist() */
1219 if (!directory_create_or_exist(lp_ncalrpc_dir(), geteuid(), 0755)) {
1220 DEBUG(0, ("Failed to create pipe directory %s - %s\n",
1221 lp_ncalrpc_dir(), strerror(errno)));
1225 if (is_daemon && !interactive) {
1226 if (rpc_epmapper_daemon() == RPC_DAEMON_FORK) {
1227 start_epmd(ev_ctx, msg_ctx);
1231 if (!dcesrv_ep_setup(ev_ctx, msg_ctx)) {
1235 /* only start other daemons if we are running as a daemon
1236 * -- bad things will happen if smbd is launched via inetd
1237 * and we fork a copy of ourselves here */
1238 if (is_daemon && !interactive) {
1240 if (rpc_lsasd_daemon() == RPC_DAEMON_FORK) {
1241 start_lsasd(ev_ctx, msg_ctx);
1244 if (!_lp_disable_spoolss() &&
1245 (rpc_spoolss_daemon() != RPC_DAEMON_DISABLED)) {
1246 bool bgq = lp_parm_bool(-1, "smbd", "backgroundqueue", true);
1248 if (!printing_subsystem_init(ev_ctx, msg_ctx, true, bgq)) {
1252 } else if (!_lp_disable_spoolss() &&
1253 (rpc_spoolss_daemon() != RPC_DAEMON_DISABLED)) {
1254 if (!printing_subsystem_init(ev_ctx, msg_ctx, false, false)) {
1263 /* Started from inetd. fd 0 is the socket. */
1264 /* We will abort gracefully when the client or remote system
1266 smbd_server_conn->sock = dup(0);
1268 /* close our standard file descriptors */
1269 if (!debug_get_output_is_stdout()) {
1270 close_low_fds(False); /* Don't close stderr */
1278 smbd_setup_sig_chld_handler(ev_ctx);
1280 smbd_process(ev_ctx, smbd_server_conn);
1282 exit_server_cleanly(NULL);
1286 parent = talloc_zero(ev_ctx, struct smbd_parent_context);
1288 exit_server("talloc(struct smbd_parent_context) failed");
1290 parent->interactive = interactive;
1292 if (!open_sockets_smbd(parent, ev_ctx, msg_ctx, ports))
1293 exit_server("open_sockets_smbd() failed");
1295 /* do a printer update now that all messaging has been set up,
1296 * before we allow clients to start connecting */
1297 printing_subsystem_update(ev_ctx, msg_ctx, false);
1300 /* make sure we always have a valid stackframe */
1301 frame = talloc_stackframe();
1303 smbd_parent_loop(ev_ctx, parent);
1305 exit_server_cleanly(NULL);