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 struct tevent_context *ev_ctx;
362 struct messaging_context *msg_ctx;
364 /* the list of listening sockets */
365 struct smbd_open_socket *sockets;
368 struct smbd_open_socket {
369 struct smbd_open_socket *prev, *next;
370 struct smbd_parent_context *parent;
372 struct tevent_fd *fde;
375 static void smbd_open_socket_close_fn(struct tevent_context *ev,
376 struct tevent_fd *fde,
380 /* this might be the socket_wrapper swrap_close() */
384 static void smbd_accept_connection(struct tevent_context *ev,
385 struct tevent_fd *fde,
389 struct smbd_open_socket *s = talloc_get_type_abort(private_data,
390 struct smbd_open_socket);
391 struct messaging_context *msg_ctx = s->parent->msg_ctx;
392 struct smbd_server_connection *sconn = msg_ctx_to_sconn(msg_ctx);
393 struct sockaddr_storage addr;
394 socklen_t in_addrlen = sizeof(addr);
399 fd = accept(s->fd, (struct sockaddr *)(void *)&addr,&in_addrlen);
401 if (fd == -1 && errno == EINTR)
405 DEBUG(0,("open_sockets_smbd: accept: %s\n",
410 if (s->parent->interactive) {
411 smbd_process(ev, sconn);
412 exit_server_cleanly("end of interactive mode");
416 if (!allowable_number_of_smbd_processes()) {
423 * Generate a unique id in the parent process so that we use
424 * the global random state in the parent.
426 generate_random_buffer((uint8_t *)&unique_id, sizeof(unique_id));
430 NTSTATUS status = NT_STATUS_OK;
435 set_my_unique_id(unique_id);
437 /* Stop zombies, the parent explicitly handles
438 * them, counting worker smbds. */
441 /* close our standard file
443 if (!debug_get_output_is_stdout()) {
444 close_low_fds(False); /* Don't close stderr */
448 * Can't use TALLOC_FREE here. Nulling out the argument to it
449 * would overwrite memory we've just freed.
451 talloc_free(s->parent);
454 status = reinit_after_fork(msg_ctx,
457 if (!NT_STATUS_IS_OK(status)) {
458 if (NT_STATUS_EQUAL(status,
459 NT_STATUS_TOO_MANY_OPENED_FILES)) {
460 DEBUG(0,("child process cannot initialize "
461 "because too many files are open\n"));
464 if (lp_clustering() &&
465 NT_STATUS_EQUAL(status,
466 NT_STATUS_INTERNAL_DB_ERROR)) {
467 DEBUG(1,("child process cannot initialize "
468 "because connection to CTDB "
473 DEBUG(0,("reinit_after_fork() failed\n"));
474 smb_panic("reinit_after_fork() failed");
477 smbd_setup_sig_term_handler();
478 smbd_setup_sig_hup_handler(ev,
481 if (!serverid_register(messaging_server_id(msg_ctx),
482 FLAG_MSG_GENERAL|FLAG_MSG_SMBD
484 |FLAG_MSG_PRINT_GENERAL)) {
485 exit_server_cleanly("Could not register myself in "
489 smbd_process(ev, sconn);
491 exit_server_cleanly("end of child");
496 DEBUG(0,("smbd_accept_connection: sys_fork() failed: %s\n",
500 /* The parent doesn't need this socket */
503 /* Sun May 6 18:56:14 2001 ackley@cs.unm.edu:
504 Clear the closed fd info out of server_fd --
505 and more importantly, out of client_fd in
506 util_sock.c, to avoid a possible
507 getpeername failure if we reopen the logs
508 and use %I in the filename.
516 /* Force parent to check log size after
517 * spawning child. Fix from
518 * klausr@ITAP.Physik.Uni-Stuttgart.De. The
519 * parent smbd will log to logserver.smb. It
520 * writes only two messages for each child
521 * started/finished. But each child writes,
522 * say, 50 messages also in logserver.smb,
523 * begining with the debug_count of the
524 * parent, before the child opens its own log
525 * file logserver.client. In a worst case
526 * scenario the size of logserver.smb would be
527 * checked after about 50*50=2500 messages
530 force_check_log_size();
533 static bool smbd_open_one_socket(struct smbd_parent_context *parent,
534 struct tevent_context *ev_ctx,
535 struct messaging_context *msg_ctx,
536 const struct sockaddr_storage *ifss,
539 struct smbd_open_socket *s;
541 s = talloc(parent, struct smbd_open_socket);
547 s->fd = open_socket_in(SOCK_STREAM,
549 parent->sockets == NULL ? 0 : 2,
553 DEBUG(0,("smbd_open_once_socket: open_socket_in: "
554 "%s\n", strerror(errno)));
557 * We ignore an error here, as we've done before
562 /* ready to listen */
563 set_socket_options(s->fd, "SO_KEEPALIVE");
564 set_socket_options(s->fd, lp_socket_options());
566 /* Set server socket to
567 * non-blocking for the accept. */
568 set_blocking(s->fd, False);
570 if (listen(s->fd, SMBD_LISTEN_BACKLOG) == -1) {
571 DEBUG(0,("open_sockets_smbd: listen: "
572 "%s\n", strerror(errno)));
578 s->fde = tevent_add_fd(ev_ctx,
580 s->fd, TEVENT_FD_READ,
581 smbd_accept_connection,
584 DEBUG(0,("open_sockets_smbd: "
585 "tevent_add_fd: %s\n",
591 tevent_fd_set_close_fn(s->fde, smbd_open_socket_close_fn);
593 DLIST_ADD_END(parent->sockets, s, struct smbd_open_socket *);
598 /****************************************************************************
599 Open the socket communication.
600 ****************************************************************************/
602 static bool open_sockets_smbd(struct smbd_parent_context *parent,
603 struct tevent_context *ev_ctx,
604 struct messaging_context *msg_ctx,
605 const char *smb_ports)
607 int num_interfaces = iface_count();
610 unsigned dns_port = 0;
617 smbd_setup_sig_chld_handler(ev_ctx);
619 /* use a reasonable default set of ports - listing on 445 and 139 */
621 ports = lp_smb_ports();
622 if (!ports || !*ports) {
623 ports = talloc_strdup(talloc_tos(), SMB_PORTS);
625 ports = talloc_strdup(talloc_tos(), ports);
628 ports = talloc_strdup(talloc_tos(), smb_ports);
631 if (lp_interfaces() && lp_bind_interfaces_only()) {
632 /* We have been given an interfaces line, and been
633 told to only bind to those interfaces. Create a
634 socket per interface and bind to only these.
637 /* Now open a listen socket for each of the
639 for(i = 0; i < num_interfaces; i++) {
640 const struct sockaddr_storage *ifss =
641 iface_n_sockaddr_storage(i);
646 DEBUG(0,("open_sockets_smbd: "
647 "interface %d has NULL IP address !\n",
653 next_token_talloc(talloc_tos(),&ptr, &tok, " \t,");) {
654 unsigned port = atoi(tok);
655 if (port == 0 || port > 0xffff) {
659 /* Keep the first port for mDNS service
666 if (!smbd_open_one_socket(parent,
676 /* Just bind to 0.0.0.0 - accept connections
681 const char *sock_addr = lp_socket_address();
683 const char *sock_ptr;
685 if (strequal(sock_addr, "0.0.0.0") ||
686 strequal(sock_addr, "::")) {
688 sock_addr = "::,0.0.0.0";
690 sock_addr = "0.0.0.0";
694 for (sock_ptr=sock_addr;
695 next_token_talloc(talloc_tos(), &sock_ptr, &sock_tok, " \t,"); ) {
696 for (ptr=ports; next_token_talloc(talloc_tos(), &ptr, &tok, " \t,"); ) {
697 struct sockaddr_storage ss;
699 unsigned port = atoi(tok);
700 if (port == 0 || port > 0xffff) {
704 /* Keep the first port for mDNS service
711 /* open an incoming socket */
712 if (!interpret_string_addr(&ss, sock_tok,
713 AI_NUMERICHOST|AI_PASSIVE)) {
717 if (!smbd_open_one_socket(parent,
728 if (parent->sockets == NULL) {
729 DEBUG(0,("open_sockets_smbd: No "
730 "sockets available to bind to.\n"));
734 /* Setup the main smbd so that we can get messages. Note that
735 do this after starting listening. This is needed as when in
736 clustered mode, ctdb won't allow us to start doing database
737 operations until it has gone thru a full startup, which
738 includes checking to see that smbd is listening. */
740 if (!serverid_register(messaging_server_id(msg_ctx),
741 FLAG_MSG_GENERAL|FLAG_MSG_SMBD
742 |FLAG_MSG_PRINT_GENERAL
744 DEBUG(0, ("open_sockets_smbd: Failed to register "
745 "myself in serverid.tdb\n"));
749 /* Listen to messages */
751 messaging_register(msg_ctx, NULL, MSG_SMB_SAM_SYNC, msg_sam_sync);
752 messaging_register(msg_ctx, NULL, MSG_SHUTDOWN, msg_exit_server);
753 messaging_register(msg_ctx, ev_ctx, MSG_SMB_CONF_UPDATED,
755 messaging_register(msg_ctx, NULL, MSG_SMB_STAT_CACHE_DELETE,
756 smb_stat_cache_delete);
757 messaging_register(msg_ctx, NULL, MSG_DEBUG, smbd_msg_debug);
758 messaging_register(msg_ctx, ev_ctx, MSG_PRINTER_PCAP,
760 brl_register_msgs(msg_ctx);
762 msg_idmap_register_msg(msg_ctx);
764 #ifdef CLUSTER_SUPPORT
765 if (lp_clustering()) {
766 ctdbd_register_reconfigure(messaging_ctdbd_connection());
771 messaging_register(msg_ctx, NULL, MSG_SMB_INJECT_FAULT,
775 if (lp_multicast_dns_register() && (dns_port != 0)) {
776 #ifdef WITH_DNSSD_SUPPORT
777 smbd_setup_mdns_registration(ev_ctx,
780 #ifdef WITH_AVAHI_SUPPORT
783 avahi_conn = avahi_start_register(ev_ctx,
786 if (avahi_conn == NULL) {
787 DEBUG(10, ("avahi_start_register failed\n"));
795 static void smbd_parent_loop(struct tevent_context *ev_ctx,
796 struct smbd_parent_context *parent)
798 /* now accept incoming connections - forking a new process
799 for each incoming connection */
800 DEBUG(2,("waiting for connections\n"));
803 TALLOC_CTX *frame = talloc_stackframe();
805 ret = tevent_loop_once(ev_ctx);
807 exit_server_cleanly("tevent_loop_once() error");
813 /* NOTREACHED return True; */
817 /****************************************************************************
818 Initialise connect, service and file structs.
819 ****************************************************************************/
821 static bool init_structs(void )
824 * Set the machine NETBIOS name if not already
825 * set from the config file.
837 /****************************************************************************
839 ****************************************************************************/
841 /* Declare prototype for build_options() to avoid having to run it through
842 mkproto.h. Mixing $(builddir) and $(srcdir) source files in the current
843 prototype generation system is too complicated. */
845 extern void build_options(bool screen);
847 int main(int argc,const char *argv[])
849 /* shall I run as a daemon */
850 bool is_daemon = false;
851 bool interactive = false;
853 bool no_process_group = false;
854 bool log_stdout = false;
856 char *profile_level = NULL;
859 bool print_build_options = False;
864 OPT_NO_PROCESS_GROUP,
867 struct poptOption long_options[] = {
869 {"daemon", 'D', POPT_ARG_NONE, NULL, OPT_DAEMON, "Become a daemon (default)" },
870 {"interactive", 'i', POPT_ARG_NONE, NULL, OPT_INTERACTIVE, "Run interactive (not a daemon)"},
871 {"foreground", 'F', POPT_ARG_NONE, NULL, OPT_FORK, "Run daemon in foreground (for daemontools, etc.)" },
872 {"no-process-group", '\0', POPT_ARG_NONE, NULL, OPT_NO_PROCESS_GROUP, "Don't create a new process group" },
873 {"log-stdout", 'S', POPT_ARG_NONE, NULL, OPT_LOG_STDOUT, "Log to stdout" },
874 {"build-options", 'b', POPT_ARG_NONE, NULL, 'b', "Print build options" },
875 {"port", 'p', POPT_ARG_STRING, &ports, 0, "Listen on the specified ports"},
876 {"profiling-level", 'P', POPT_ARG_STRING, &profile_level, 0, "Set profiling level","PROFILE_LEVEL"},
878 POPT_COMMON_DYNCONFIG
881 struct smbd_parent_context *parent = NULL;
885 struct tevent_context *ev_ctx;
886 struct messaging_context *msg_ctx;
889 * Do this before any other talloc operation
891 talloc_enable_null_tracking();
892 frame = talloc_stackframe();
894 setup_logging(argv[0], DEBUG_DEFAULT_STDOUT);
902 #ifdef HAVE_SET_AUTH_PARAMETERS
903 set_auth_parameters(argc,argv);
906 pc = poptGetContext("smbd", argc, argv, long_options, 0);
907 while((opt = poptGetNextOpt(pc)) != -1) {
912 case OPT_INTERACTIVE:
918 case OPT_NO_PROCESS_GROUP:
919 no_process_group = true;
925 print_build_options = True;
928 d_fprintf(stderr, "\nInvalid option %s: %s\n\n",
929 poptBadOption(pc, 0), poptStrerror(opt));
930 poptPrintUsage(pc, stderr, 0);
942 setup_logging(argv[0], DEBUG_STDOUT);
944 setup_logging(argv[0], DEBUG_FILE);
947 if (print_build_options) {
948 build_options(True); /* Display output to screen as well as debug */
953 /* needed for SecureWare on SCO */
957 set_remote_machine_name("smbd", False);
959 if (interactive && (DEBUGLEVEL >= 9)) {
960 talloc_enable_leak_report();
963 if (log_stdout && Fork) {
964 DEBUG(0,("ERROR: Can't log to stdout (-S) unless daemon is in foreground (-F) or interactive (-i)\n"));
968 /* we want to re-seed early to prevent time delays causing
969 client problems at a later date. (tridge) */
970 generate_random_buffer(NULL, 0);
972 /* get initial effective uid and gid */
975 /* make absolutely sure we run as root - to handle cases where people
976 are crazy enough to have it setuid */
977 gain_root_privilege();
978 gain_root_group_privilege();
981 dump_core_setup("smbd", lp_logfile());
983 /* we are never interested in SIGPIPE */
984 BlockSignals(True,SIGPIPE);
987 /* we are never interested in SIGFPE */
988 BlockSignals(True,SIGFPE);
992 /* We are no longer interested in USR2 */
993 BlockSignals(True,SIGUSR2);
996 /* POSIX demands that signals are inherited. If the invoking process has
997 * these signals masked, we will have problems, as we won't recieve them. */
998 BlockSignals(False, SIGHUP);
999 BlockSignals(False, SIGUSR1);
1000 BlockSignals(False, SIGTERM);
1002 /* Ensure we leave no zombies until we
1003 * correctly set up child handling below. */
1007 /* we want total control over the permissions on created files,
1008 so set our umask to 0 */
1013 DEBUG(0,("smbd version %s started.\n", samba_version_string()));
1014 DEBUGADD(0,("%s\n", COPYRIGHT_STARTUP_MESSAGE));
1016 DEBUG(2,("uid=%d gid=%d euid=%d egid=%d\n",
1017 (int)getuid(),(int)getgid(),(int)geteuid(),(int)getegid()));
1019 /* Output the build options to the debug log */
1020 build_options(False);
1022 if (sizeof(uint16) < 2 || sizeof(uint32) < 4) {
1023 DEBUG(0,("ERROR: Samba is not configured correctly for the word size on your machine\n"));
1027 if (!lp_load_initial_only(get_dyn_CONFIGFILE())) {
1028 DEBUG(0, ("error opening config file '%s'\n", get_dyn_CONFIGFILE()));
1032 /* Init the security context and global current_user */
1036 * Initialize the event context. The event context needs to be
1037 * initialized before the messaging context, cause the messaging
1038 * context holds an event context.
1039 * FIXME: This should be s3_tevent_context_init()
1041 ev_ctx = server_event_context();
1042 if (ev_ctx == NULL) {
1047 * Init the messaging context
1048 * FIXME: This should only call messaging_init()
1050 msg_ctx = server_messaging_context();
1051 if (msg_ctx == NULL) {
1056 * Reloading of the printers will not work here as we don't have a
1057 * server info and rpc services set up. It will be called later.
1059 if (!reload_services(NULL, -1, False)) {
1063 /* ...NOTE... Log files are working from this point! */
1065 DEBUG(3,("loaded services\n"));
1070 if (!profile_setup(msg_ctx, False)) {
1071 DEBUG(0,("ERROR: failed to setup profiling\n"));
1074 if (profile_level != NULL) {
1075 int pl = atoi(profile_level);
1076 struct server_id src;
1078 DEBUG(1, ("setting profiling level: %s\n",profile_level));
1080 set_profile_level(pl, src);
1084 if (!is_daemon && !is_a_socket(0)) {
1086 DEBUG(0,("standard input is not a socket, assuming -D option\n"));
1089 * Setting is_daemon here prevents us from eventually calling
1090 * the open_sockets_inetd()
1096 if (is_daemon && !interactive) {
1097 DEBUG( 3, ( "Becoming a daemon.\n" ) );
1098 become_daemon(Fork, no_process_group, log_stdout);
1101 generate_random_buffer((uint8_t *)&unique_id, sizeof(unique_id));
1102 set_my_unique_id(unique_id);
1106 * If we're interactive we want to set our own process group for
1107 * signal management.
1109 if (interactive && !no_process_group)
1110 setpgid( (pid_t)0, (pid_t)0);
1113 if (!directory_exist(lp_lockdir()))
1114 mkdir(lp_lockdir(), 0755);
1117 pidfile_create("smbd");
1119 status = reinit_after_fork(msg_ctx,
1122 if (!NT_STATUS_IS_OK(status)) {
1123 DEBUG(0,("reinit_after_fork() failed\n"));
1127 smbd_server_conn->msg_ctx = msg_ctx;
1129 parent = talloc_zero(ev_ctx, struct smbd_parent_context);
1131 exit_server("talloc(struct smbd_parent_context) failed");
1133 parent->interactive = interactive;
1134 parent->ev_ctx = ev_ctx;
1135 parent->msg_ctx = msg_ctx;
1137 smbd_setup_sig_term_handler();
1138 smbd_setup_sig_hup_handler(ev_ctx,
1141 /* Setup all the TDB's - including CLEAR_IF_FIRST tdb's. */
1143 if (smbd_memcache() == NULL) {
1147 memcache_set_global(smbd_memcache());
1149 /* Initialise the password backed before the global_sam_sid
1150 to ensure that we fetch from ldap before we make a domain sid up */
1152 if(!initialize_password_db(false, ev_ctx))
1155 if (!secrets_init()) {
1156 DEBUG(0, ("ERROR: smbd can not open secrets.tdb\n"));
1160 if (lp_server_role() == ROLE_DOMAIN_BDC || lp_server_role() == ROLE_DOMAIN_PDC) {
1161 struct loadparm_context *lp_ctx = loadparm_init_s3(NULL, loadparm_s3_context());
1162 if (!open_schannel_session_store(NULL, lp_ctx)) {
1163 DEBUG(0,("ERROR: Samba cannot open schannel store for secured NETLOGON operations.\n"));
1166 TALLOC_FREE(lp_ctx);
1169 if(!get_global_sam_sid()) {
1170 DEBUG(0,("ERROR: Samba cannot create a SAM SID.\n"));
1174 if (!sessionid_init()) {
1178 if (!connections_init(True))
1181 if (!locking_init())
1184 if (!messaging_tdb_parent_init(ev_ctx)) {
1188 if (!notify_internal_parent_init(ev_ctx)) {
1192 if (!serverid_parent_init(ev_ctx)) {
1196 if (!W_ERROR_IS_OK(registry_init_full()))
1199 /* Open the share_info.tdb here, so we don't have to open
1200 after the fork on every single connection. This is a small
1201 performance improvment and reduces the total number of system
1203 if (!share_info_db_init()) {
1204 DEBUG(0,("ERROR: failed to load share info db.\n"));
1208 status = init_system_info();
1209 if (!NT_STATUS_IS_OK(status)) {
1210 DEBUG(1, ("ERROR: failed to setup system user info: %s.\n",
1211 nt_errstr(status)));
1215 if (!init_guest_info()) {
1216 DEBUG(0,("ERROR: failed to setup guest info.\n"));
1220 if (!file_init(smbd_server_conn)) {
1221 DEBUG(0, ("ERROR: file_init failed\n"));
1225 /* This MUST be done before start_epmd() because otherwise
1226 * start_epmd() forks and races against dcesrv_ep_setup() to
1227 * call directory_create_or_exist() */
1228 if (!directory_create_or_exist(lp_ncalrpc_dir(), geteuid(), 0755)) {
1229 DEBUG(0, ("Failed to create pipe directory %s - %s\n",
1230 lp_ncalrpc_dir(), strerror(errno)));
1234 if (is_daemon && !interactive) {
1235 if (rpc_epmapper_daemon() == RPC_DAEMON_FORK) {
1236 start_epmd(ev_ctx, msg_ctx);
1240 if (!dcesrv_ep_setup(ev_ctx, msg_ctx)) {
1244 /* only start other daemons if we are running as a daemon
1245 * -- bad things will happen if smbd is launched via inetd
1246 * and we fork a copy of ourselves here */
1247 if (is_daemon && !interactive) {
1249 if (rpc_lsasd_daemon() == RPC_DAEMON_FORK) {
1250 start_lsasd(ev_ctx, msg_ctx);
1253 if (!_lp_disable_spoolss() &&
1254 (rpc_spoolss_daemon() != RPC_DAEMON_DISABLED)) {
1255 bool bgq = lp_parm_bool(-1, "smbd", "backgroundqueue", true);
1257 if (!printing_subsystem_init(ev_ctx, msg_ctx, true, bgq)) {
1261 } else if (!_lp_disable_spoolss() &&
1262 (rpc_spoolss_daemon() != RPC_DAEMON_DISABLED)) {
1263 if (!printing_subsystem_init(ev_ctx, msg_ctx, false, false)) {
1272 /* Started from inetd. fd 0 is the socket. */
1273 /* We will abort gracefully when the client or remote system
1275 smbd_server_conn->sock = dup(0);
1277 /* close our standard file descriptors */
1278 if (!debug_get_output_is_stdout()) {
1279 close_low_fds(False); /* Don't close stderr */
1287 smbd_setup_sig_chld_handler(ev_ctx);
1289 smbd_process(ev_ctx, smbd_server_conn);
1291 exit_server_cleanly(NULL);
1295 if (!open_sockets_smbd(parent, ev_ctx, msg_ctx, ports))
1296 exit_server("open_sockets_smbd() failed");
1298 /* do a printer update now that all messaging has been set up,
1299 * before we allow clients to start connecting */
1300 printing_subsystem_update(ev_ctx, msg_ctx, false);
1303 /* make sure we always have a valid stackframe */
1304 frame = talloc_stackframe();
1306 smbd_parent_loop(ev_ctx, parent);
1308 exit_server_cleanly(NULL);