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 = procid_self(); /* Just initialize pid and potentially vnn */
280 if (!serverid_deregister(child_id)) {
281 DEBUG(1, ("Could not remove pid %d from serverid.tdb\n",
285 for (child = children; child != NULL; child = child->next) {
286 if (child->pid == pid) {
287 struct child_pid *tmp = child;
288 DLIST_REMOVE(children, child);
295 /* not all forked child processes are added to the children list */
296 DEBUG(1, ("Could not find child %d -- ignoring\n", (int)pid));
299 /****************************************************************************
300 Have we reached the process limit ?
301 ****************************************************************************/
303 static bool allowable_number_of_smbd_processes(void)
305 int max_processes = lp_max_smbd_processes();
310 return num_children < max_processes;
313 static void smbd_sig_chld_handler(struct tevent_context *ev,
314 struct tevent_signal *se,
323 while ((pid = sys_waitpid(-1, &status, WNOHANG)) > 0) {
324 bool unclean_shutdown = False;
326 /* If the child terminated normally, assume
327 it was an unclean shutdown unless the
330 if (WIFEXITED(status)) {
331 unclean_shutdown = WEXITSTATUS(status);
333 /* If the child terminated due to a signal
334 we always assume it was unclean.
336 if (WIFSIGNALED(status)) {
337 unclean_shutdown = True;
339 remove_child_pid(ev, pid, unclean_shutdown);
343 static void smbd_setup_sig_chld_handler(struct tevent_context *ev_ctx)
345 struct tevent_signal *se;
347 se = tevent_add_signal(ev_ctx,
348 ev_ctx, /* mem_ctx */
350 smbd_sig_chld_handler,
353 exit_server("failed to setup SIGCHLD handler");
357 struct smbd_open_socket;
359 struct smbd_parent_context {
362 /* the list of listening sockets */
363 struct smbd_open_socket *sockets;
366 struct smbd_open_socket {
367 struct smbd_open_socket *prev, *next;
368 struct smbd_parent_context *parent;
370 struct tevent_fd *fde;
371 struct messaging_context *msg_ctx;
374 static void smbd_open_socket_close_fn(struct tevent_context *ev,
375 struct tevent_fd *fde,
379 /* this might be the socket_wrapper swrap_close() */
383 static void smbd_accept_connection(struct tevent_context *ev,
384 struct tevent_fd *fde,
388 struct smbd_open_socket *s = talloc_get_type_abort(private_data,
389 struct smbd_open_socket);
390 struct messaging_context *msg_ctx = s->msg_ctx;
391 struct smbd_server_connection *sconn = msg_ctx_to_sconn(msg_ctx);
392 struct sockaddr_storage addr;
393 socklen_t in_addrlen = sizeof(addr);
398 fd = accept(s->fd, (struct sockaddr *)(void *)&addr,&in_addrlen);
400 if (fd == -1 && errno == EINTR)
404 DEBUG(0,("open_sockets_smbd: accept: %s\n",
409 if (s->parent->interactive) {
410 smbd_process(ev, sconn);
411 exit_server_cleanly("end of interactive mode");
415 if (!allowable_number_of_smbd_processes()) {
422 * Generate a unique id in the parent process so that we use
423 * the global random state in the parent.
425 generate_random_buffer((uint8_t *)&unique_id, sizeof(unique_id));
429 NTSTATUS status = NT_STATUS_OK;
434 set_my_unique_id(unique_id);
436 /* Stop zombies, the parent explicitly handles
437 * them, counting worker smbds. */
440 /* close our standard file
442 if (!debug_get_output_is_stdout()) {
443 close_low_fds(False); /* Don't close stderr */
447 * Can't use TALLOC_FREE here. Nulling out the argument to it
448 * would overwrite memory we've just freed.
450 talloc_free(s->parent);
453 status = reinit_after_fork(msg_ctx,
456 if (!NT_STATUS_IS_OK(status)) {
457 if (NT_STATUS_EQUAL(status,
458 NT_STATUS_TOO_MANY_OPENED_FILES)) {
459 DEBUG(0,("child process cannot initialize "
460 "because too many files are open\n"));
463 if (lp_clustering() &&
464 NT_STATUS_EQUAL(status,
465 NT_STATUS_INTERNAL_DB_ERROR)) {
466 DEBUG(1,("child process cannot initialize "
467 "because connection to CTDB "
472 DEBUG(0,("reinit_after_fork() failed\n"));
473 smb_panic("reinit_after_fork() failed");
476 smbd_setup_sig_term_handler();
477 smbd_setup_sig_hup_handler(ev,
480 if (!serverid_register(procid_self(),
481 FLAG_MSG_GENERAL|FLAG_MSG_SMBD
483 |FLAG_MSG_PRINT_GENERAL)) {
484 exit_server_cleanly("Could not register myself in "
488 smbd_process(ev, sconn);
490 exit_server_cleanly("end of child");
495 DEBUG(0,("smbd_accept_connection: sys_fork() failed: %s\n",
499 /* The parent doesn't need this socket */
502 /* Sun May 6 18:56:14 2001 ackley@cs.unm.edu:
503 Clear the closed fd info out of server_fd --
504 and more importantly, out of client_fd in
505 util_sock.c, to avoid a possible
506 getpeername failure if we reopen the logs
507 and use %I in the filename.
515 /* Force parent to check log size after
516 * spawning child. Fix from
517 * klausr@ITAP.Physik.Uni-Stuttgart.De. The
518 * parent smbd will log to logserver.smb. It
519 * writes only two messages for each child
520 * started/finished. But each child writes,
521 * say, 50 messages also in logserver.smb,
522 * begining with the debug_count of the
523 * parent, before the child opens its own log
524 * file logserver.client. In a worst case
525 * scenario the size of logserver.smb would be
526 * checked after about 50*50=2500 messages
529 force_check_log_size();
532 static bool smbd_open_one_socket(struct smbd_parent_context *parent,
533 struct tevent_context *ev_ctx,
534 struct messaging_context *msg_ctx,
535 const struct sockaddr_storage *ifss,
538 struct smbd_open_socket *s;
540 s = talloc(parent, struct smbd_open_socket);
546 s->fd = open_socket_in(SOCK_STREAM,
548 parent->sockets == NULL ? 0 : 2,
552 DEBUG(0,("smbd_open_once_socket: open_socket_in: "
553 "%s\n", strerror(errno)));
556 * We ignore an error here, as we've done before
561 /* ready to listen */
562 set_socket_options(s->fd, "SO_KEEPALIVE");
563 set_socket_options(s->fd, lp_socket_options());
565 /* Set server socket to
566 * non-blocking for the accept. */
567 set_blocking(s->fd, False);
569 if (listen(s->fd, SMBD_LISTEN_BACKLOG) == -1) {
570 DEBUG(0,("open_sockets_smbd: listen: "
571 "%s\n", strerror(errno)));
577 s->msg_ctx = msg_ctx;
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(procid_self(),
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, NULL, MSG_SMB_FILE_RENAME,
754 msg_file_was_renamed);
755 messaging_register(msg_ctx, ev_ctx, MSG_SMB_CONF_UPDATED,
757 messaging_register(msg_ctx, NULL, MSG_SMB_STAT_CACHE_DELETE,
758 smb_stat_cache_delete);
759 messaging_register(msg_ctx, NULL, MSG_DEBUG, smbd_msg_debug);
760 messaging_register(msg_ctx, ev_ctx, MSG_PRINTER_PCAP,
762 brl_register_msgs(msg_ctx);
764 msg_idmap_register_msg(msg_ctx);
766 #ifdef CLUSTER_SUPPORT
767 if (lp_clustering()) {
768 ctdbd_register_reconfigure(messaging_ctdbd_connection());
773 messaging_register(msg_ctx, NULL, MSG_SMB_INJECT_FAULT,
777 if (lp_multicast_dns_register() && (dns_port != 0)) {
778 #ifdef WITH_DNSSD_SUPPORT
779 smbd_setup_mdns_registration(ev_ctx,
782 #ifdef WITH_AVAHI_SUPPORT
785 avahi_conn = avahi_start_register(ev_ctx,
788 if (avahi_conn == NULL) {
789 DEBUG(10, ("avahi_start_register failed\n"));
797 static void smbd_parent_loop(struct tevent_context *ev_ctx,
798 struct smbd_parent_context *parent)
800 /* now accept incoming connections - forking a new process
801 for each incoming connection */
802 DEBUG(2,("waiting for connections\n"));
805 TALLOC_CTX *frame = talloc_stackframe();
807 ret = tevent_loop_once(ev_ctx);
809 exit_server_cleanly("tevent_loop_once() error");
815 /* NOTREACHED return True; */
819 /****************************************************************************
820 Initialise connect, service and file structs.
821 ****************************************************************************/
823 static bool init_structs(void )
826 * Set the machine NETBIOS name if not already
827 * set from the config file.
839 /****************************************************************************
841 ****************************************************************************/
843 /* Declare prototype for build_options() to avoid having to run it through
844 mkproto.h. Mixing $(builddir) and $(srcdir) source files in the current
845 prototype generation system is too complicated. */
847 extern void build_options(bool screen);
849 int main(int argc,const char *argv[])
851 /* shall I run as a daemon */
852 bool is_daemon = false;
853 bool interactive = false;
855 bool no_process_group = false;
856 bool log_stdout = false;
858 char *profile_level = NULL;
861 bool print_build_options = False;
866 OPT_NO_PROCESS_GROUP,
869 struct poptOption long_options[] = {
871 {"daemon", 'D', POPT_ARG_NONE, NULL, OPT_DAEMON, "Become a daemon (default)" },
872 {"interactive", 'i', POPT_ARG_NONE, NULL, OPT_INTERACTIVE, "Run interactive (not a daemon)"},
873 {"foreground", 'F', POPT_ARG_NONE, NULL, OPT_FORK, "Run daemon in foreground (for daemontools, etc.)" },
874 {"no-process-group", '\0', POPT_ARG_NONE, NULL, OPT_NO_PROCESS_GROUP, "Don't create a new process group" },
875 {"log-stdout", 'S', POPT_ARG_NONE, NULL, OPT_LOG_STDOUT, "Log to stdout" },
876 {"build-options", 'b', POPT_ARG_NONE, NULL, 'b', "Print build options" },
877 {"port", 'p', POPT_ARG_STRING, &ports, 0, "Listen on the specified ports"},
878 {"profiling-level", 'P', POPT_ARG_STRING, &profile_level, 0, "Set profiling level","PROFILE_LEVEL"},
880 POPT_COMMON_DYNCONFIG
883 struct smbd_parent_context *parent = NULL;
887 struct tevent_context *ev_ctx;
888 struct messaging_context *msg_ctx;
891 * Do this before any other talloc operation
893 talloc_enable_null_tracking();
894 frame = talloc_stackframe();
896 setup_logging(argv[0], DEBUG_DEFAULT_STDOUT);
904 #ifdef HAVE_SET_AUTH_PARAMETERS
905 set_auth_parameters(argc,argv);
908 pc = poptGetContext("smbd", argc, argv, long_options, 0);
909 while((opt = poptGetNextOpt(pc)) != -1) {
914 case OPT_INTERACTIVE:
920 case OPT_NO_PROCESS_GROUP:
921 no_process_group = true;
927 print_build_options = True;
930 d_fprintf(stderr, "\nInvalid option %s: %s\n\n",
931 poptBadOption(pc, 0), poptStrerror(opt));
932 poptPrintUsage(pc, stderr, 0);
944 setup_logging(argv[0], DEBUG_STDOUT);
946 setup_logging(argv[0], DEBUG_FILE);
949 if (print_build_options) {
950 build_options(True); /* Display output to screen as well as debug */
955 /* needed for SecureWare on SCO */
959 set_remote_machine_name("smbd", False);
961 if (interactive && (DEBUGLEVEL >= 9)) {
962 talloc_enable_leak_report();
965 if (log_stdout && Fork) {
966 DEBUG(0,("ERROR: Can't log to stdout (-S) unless daemon is in foreground (-F) or interactive (-i)\n"));
970 /* we want to re-seed early to prevent time delays causing
971 client problems at a later date. (tridge) */
972 generate_random_buffer(NULL, 0);
974 /* get initial effective uid and gid */
977 /* make absolutely sure we run as root - to handle cases where people
978 are crazy enough to have it setuid */
979 gain_root_privilege();
980 gain_root_group_privilege();
983 dump_core_setup("smbd", lp_logfile());
985 /* we are never interested in SIGPIPE */
986 BlockSignals(True,SIGPIPE);
989 /* we are never interested in SIGFPE */
990 BlockSignals(True,SIGFPE);
994 /* We are no longer interested in USR2 */
995 BlockSignals(True,SIGUSR2);
998 /* POSIX demands that signals are inherited. If the invoking process has
999 * these signals masked, we will have problems, as we won't recieve them. */
1000 BlockSignals(False, SIGHUP);
1001 BlockSignals(False, SIGUSR1);
1002 BlockSignals(False, SIGTERM);
1004 /* Ensure we leave no zombies until we
1005 * correctly set up child handling below. */
1009 /* we want total control over the permissions on created files,
1010 so set our umask to 0 */
1015 DEBUG(0,("smbd version %s started.\n", samba_version_string()));
1016 DEBUGADD(0,("%s\n", COPYRIGHT_STARTUP_MESSAGE));
1018 DEBUG(2,("uid=%d gid=%d euid=%d egid=%d\n",
1019 (int)getuid(),(int)getgid(),(int)geteuid(),(int)getegid()));
1021 /* Output the build options to the debug log */
1022 build_options(False);
1024 if (sizeof(uint16) < 2 || sizeof(uint32) < 4) {
1025 DEBUG(0,("ERROR: Samba is not configured correctly for the word size on your machine\n"));
1029 if (!lp_load_initial_only(get_dyn_CONFIGFILE())) {
1030 DEBUG(0, ("error opening config file '%s'\n", get_dyn_CONFIGFILE()));
1034 /* Init the security context and global current_user */
1038 * Initialize the event context. The event context needs to be
1039 * initialized before the messaging context, cause the messaging
1040 * context holds an event context.
1041 * FIXME: This should be s3_tevent_context_init()
1043 ev_ctx = server_event_context();
1044 if (ev_ctx == NULL) {
1049 * Init the messaging context
1050 * FIXME: This should only call messaging_init()
1052 msg_ctx = server_messaging_context();
1053 if (msg_ctx == NULL) {
1058 * Reloading of the printers will not work here as we don't have a
1059 * server info and rpc services set up. It will be called later.
1061 if (!reload_services(NULL, -1, False)) {
1065 /* ...NOTE... Log files are working from this point! */
1067 DEBUG(3,("loaded services\n"));
1072 if (!profile_setup(msg_ctx, False)) {
1073 DEBUG(0,("ERROR: failed to setup profiling\n"));
1076 if (profile_level != NULL) {
1077 int pl = atoi(profile_level);
1078 struct server_id src;
1080 DEBUG(1, ("setting profiling level: %s\n",profile_level));
1082 set_profile_level(pl, src);
1086 if (!is_daemon && !is_a_socket(0)) {
1088 DEBUG(0,("standard input is not a socket, assuming -D option\n"));
1091 * Setting is_daemon here prevents us from eventually calling
1092 * the open_sockets_inetd()
1098 if (is_daemon && !interactive) {
1099 DEBUG( 3, ( "Becoming a daemon.\n" ) );
1100 become_daemon(Fork, no_process_group, log_stdout);
1103 generate_random_buffer((uint8_t *)&unique_id, sizeof(unique_id));
1104 set_my_unique_id(unique_id);
1108 * If we're interactive we want to set our own process group for
1109 * signal management.
1111 if (interactive && !no_process_group)
1112 setpgid( (pid_t)0, (pid_t)0);
1115 if (!directory_exist(lp_lockdir()))
1116 mkdir(lp_lockdir(), 0755);
1119 pidfile_create("smbd");
1121 status = reinit_after_fork(msg_ctx,
1124 if (!NT_STATUS_IS_OK(status)) {
1125 DEBUG(0,("reinit_after_fork() failed\n"));
1129 smbd_server_conn->msg_ctx = msg_ctx;
1131 smbd_setup_sig_term_handler();
1132 smbd_setup_sig_hup_handler(ev_ctx,
1135 /* Setup all the TDB's - including CLEAR_IF_FIRST tdb's. */
1137 if (smbd_memcache() == NULL) {
1141 memcache_set_global(smbd_memcache());
1143 /* Initialise the password backed before the global_sam_sid
1144 to ensure that we fetch from ldap before we make a domain sid up */
1146 if(!initialize_password_db(false, ev_ctx))
1149 if (!secrets_init()) {
1150 DEBUG(0, ("ERROR: smbd can not open secrets.tdb\n"));
1154 if (lp_server_role() == ROLE_DOMAIN_BDC || lp_server_role() == ROLE_DOMAIN_PDC) {
1155 struct loadparm_context *lp_ctx = loadparm_init_s3(NULL, loadparm_s3_context());
1156 if (!open_schannel_session_store(NULL, lp_ctx)) {
1157 DEBUG(0,("ERROR: Samba cannot open schannel store for secured NETLOGON operations.\n"));
1160 TALLOC_FREE(lp_ctx);
1163 if(!get_global_sam_sid()) {
1164 DEBUG(0,("ERROR: Samba cannot create a SAM SID.\n"));
1168 if (!sessionid_init()) {
1172 if (!connections_init(True))
1175 if (!locking_init())
1178 if (!messaging_tdb_parent_init(ev_ctx)) {
1182 if (!notify_internal_parent_init(ev_ctx)) {
1186 if (!serverid_parent_init(ev_ctx)) {
1190 if (!W_ERROR_IS_OK(registry_init_full()))
1193 /* Open the share_info.tdb here, so we don't have to open
1194 after the fork on every single connection. This is a small
1195 performance improvment and reduces the total number of system
1197 if (!share_info_db_init()) {
1198 DEBUG(0,("ERROR: failed to load share info db.\n"));
1202 status = init_system_info();
1203 if (!NT_STATUS_IS_OK(status)) {
1204 DEBUG(1, ("ERROR: failed to setup system user info: %s.\n",
1205 nt_errstr(status)));
1209 if (!init_guest_info()) {
1210 DEBUG(0,("ERROR: failed to setup guest info.\n"));
1214 if (!file_init(smbd_server_conn)) {
1215 DEBUG(0, ("ERROR: file_init failed\n"));
1219 /* This MUST be done before start_epmd() because otherwise
1220 * start_epmd() forks and races against dcesrv_ep_setup() to
1221 * call directory_create_or_exist() */
1222 if (!directory_create_or_exist(lp_ncalrpc_dir(), geteuid(), 0755)) {
1223 DEBUG(0, ("Failed to create pipe directory %s - %s\n",
1224 lp_ncalrpc_dir(), strerror(errno)));
1228 if (is_daemon && !interactive) {
1229 if (rpc_epmapper_daemon() == RPC_DAEMON_FORK) {
1230 start_epmd(ev_ctx, msg_ctx);
1234 if (!dcesrv_ep_setup(ev_ctx, msg_ctx)) {
1238 /* only start other daemons if we are running as a daemon
1239 * -- bad things will happen if smbd is launched via inetd
1240 * and we fork a copy of ourselves here */
1241 if (is_daemon && !interactive) {
1243 if (rpc_lsasd_daemon() == RPC_DAEMON_FORK) {
1244 start_lsasd(ev_ctx, msg_ctx);
1247 if (!_lp_disable_spoolss() &&
1248 (rpc_spoolss_daemon() != RPC_DAEMON_DISABLED)) {
1249 bool bgq = lp_parm_bool(-1, "smbd", "backgroundqueue", true);
1251 if (!printing_subsystem_init(ev_ctx, msg_ctx, true, bgq)) {
1255 } else if (!_lp_disable_spoolss() &&
1256 (rpc_spoolss_daemon() != RPC_DAEMON_DISABLED)) {
1257 if (!printing_subsystem_init(ev_ctx, msg_ctx, false, false)) {
1266 /* Started from inetd. fd 0 is the socket. */
1267 /* We will abort gracefully when the client or remote system
1269 smbd_server_conn->sock = dup(0);
1271 /* close our standard file descriptors */
1272 if (!debug_get_output_is_stdout()) {
1273 close_low_fds(False); /* Don't close stderr */
1281 smbd_setup_sig_chld_handler(ev_ctx);
1283 smbd_process(ev_ctx, smbd_server_conn);
1285 exit_server_cleanly(NULL);
1289 parent = talloc_zero(ev_ctx, struct smbd_parent_context);
1291 exit_server("talloc(struct smbd_parent_context) failed");
1293 parent->interactive = interactive;
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);