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/>.
28 static int am_parent = 1;
30 extern struct auth_context *negprot_global_auth_context;
31 extern SIG_ATOMIC_T got_sig_term;
32 extern SIG_ATOMIC_T reload_after_sighup;
33 static SIG_ATOMIC_T got_sig_cld;
36 extern int dcelogin_atmost_once;
39 /* really we should have a top level context structure that has the
40 client file descriptor as an element. That would require a major rewrite :(
42 the following 2 functions are an alternative - they make the file
43 descriptor private to smbd
45 static int server_fd = -1;
47 int smbd_server_fd(void)
52 static void smbd_set_server_fd(int fd)
57 int get_client_fd(void)
62 int client_get_tcp_info(struct sockaddr_in *server, struct sockaddr_in *client)
65 if (server_fd == -1) {
68 length = sizeof(*server);
69 if (getsockname(server_fd, (struct sockaddr *)server, &length) != 0) {
72 length = sizeof(*client);
73 if (getpeername(server_fd, (struct sockaddr *)client, &length) != 0) {
79 struct event_context *smbd_event_context(void)
81 static struct event_context *ctx;
83 if (!ctx && !(ctx = event_context_init(NULL))) {
84 smb_panic("Could not init smbd event context");
89 struct messaging_context *smbd_messaging_context(void)
91 static struct messaging_context *ctx;
94 ctx = messaging_init(NULL, server_id_self(),
95 smbd_event_context());
98 DEBUG(0, ("Could not init smbd messaging context.\n"));
103 struct memcache *smbd_memcache(void)
105 static struct memcache *cache;
108 && !(cache = memcache_init(NULL,
109 lp_max_stat_cache_size()*1024))) {
111 smb_panic("Could not init smbd memcache");
116 /*******************************************************************
117 What to do when smb.conf is updated.
118 ********************************************************************/
120 static void smb_conf_updated(struct messaging_context *msg,
123 struct server_id server_id,
126 DEBUG(10,("smb_conf_updated: Got message saying smb.conf was "
127 "updated. Reloading.\n"));
128 reload_services(False);
132 /*******************************************************************
133 Delete a statcache entry.
134 ********************************************************************/
136 static void smb_stat_cache_delete(struct messaging_context *msg,
139 struct server_id server_id,
142 const char *name = (const char *)data->data;
143 DEBUG(10,("smb_stat_cache_delete: delete name %s\n", name));
144 stat_cache_delete(name);
147 /****************************************************************************
149 ****************************************************************************/
151 static void sig_term(void)
154 sys_select_signal(SIGTERM);
157 /****************************************************************************
159 ****************************************************************************/
161 static void sig_hup(int sig)
163 reload_after_sighup = 1;
164 sys_select_signal(SIGHUP);
167 /****************************************************************************
169 ****************************************************************************/
170 static void sig_cld(int sig)
173 sys_select_signal(SIGCLD);
176 /****************************************************************************
177 Send a SIGTERM to our process group.
178 *****************************************************************************/
180 static void killkids(void)
182 if(am_parent) kill(0,SIGTERM);
185 /****************************************************************************
186 Process a sam sync message - not sure whether to do this here or
188 ****************************************************************************/
190 static void msg_sam_sync(struct messaging_context *msg,
193 struct server_id server_id,
196 DEBUG(10, ("** sam sync message received, ignoring\n"));
200 /****************************************************************************
201 Open the socket communication - inetd.
202 ****************************************************************************/
204 static bool open_sockets_inetd(void)
206 /* Started from inetd. fd 0 is the socket. */
207 /* We will abort gracefully when the client or remote system
209 smbd_set_server_fd(dup(0));
211 /* close our standard file descriptors */
212 close_low_fds(False); /* Don't close stderr */
214 set_socket_options(smbd_server_fd(),"SO_KEEPALIVE");
215 set_socket_options(smbd_server_fd(), lp_socket_options());
220 static void msg_exit_server(struct messaging_context *msg,
223 struct server_id server_id,
226 DEBUG(3, ("got a SHUTDOWN message\n"));
227 exit_server_cleanly(NULL);
231 static void msg_inject_fault(struct messaging_context *msg,
234 struct server_id src,
239 if (data->length != sizeof(sig)) {
241 DEBUG(0, ("Process %s sent bogus signal injection request\n",
242 procid_str_static(&src)));
246 sig = *(int *)data->data;
248 exit_server("internal error injected");
253 DEBUG(0, ("Process %s requested injection of signal %d (%s)\n",
254 procid_str_static(&src), sig, strsignal(sig)));
256 DEBUG(0, ("Process %s requested injection of signal %d\n",
257 procid_str_static(&src), sig));
260 kill(sys_getpid(), sig);
262 #endif /* DEVELOPER */
265 struct child_pid *prev, *next;
269 static struct child_pid *children;
270 static int num_children;
272 static void add_child_pid(pid_t pid)
274 struct child_pid *child;
276 if (lp_max_smbd_processes() == 0) {
277 /* Don't bother with the child list if we don't care anyway */
281 child = SMB_MALLOC_P(struct child_pid);
283 DEBUG(0, ("Could not add child struct -- malloc failed\n"));
287 DLIST_ADD(children, child);
291 static void remove_child_pid(pid_t pid, bool unclean_shutdown)
293 struct child_pid *child;
295 if (unclean_shutdown) {
296 /* a child terminated uncleanly so tickle all processes to see
297 if they can grab any of the pending locks
299 DEBUG(3,(__location__ " Unclean shutdown of pid %u\n", pid));
300 messaging_send_buf(smbd_messaging_context(), procid_self(),
301 MSG_SMB_BRL_VALIDATE, NULL, 0);
302 message_send_all(smbd_messaging_context(),
303 MSG_SMB_UNLOCK, NULL, 0, NULL);
306 if (lp_max_smbd_processes() == 0) {
307 /* Don't bother with the child list if we don't care anyway */
311 for (child = children; child != NULL; child = child->next) {
312 if (child->pid == pid) {
313 struct child_pid *tmp = child;
314 DLIST_REMOVE(children, child);
321 DEBUG(0, ("Could not find child %d -- ignoring\n", (int)pid));
324 /****************************************************************************
325 Have we reached the process limit ?
326 ****************************************************************************/
328 static bool allowable_number_of_smbd_processes(void)
330 int max_processes = lp_max_smbd_processes();
335 return num_children < max_processes;
338 /****************************************************************************
339 Open the socket communication.
340 ****************************************************************************/
342 static bool open_sockets_smbd(bool is_daemon, bool interactive, const char *smb_ports)
344 int num_interfaces = iface_count();
346 int fd_listenset[FD_SETSIZE];
352 struct dns_reg_state * dns_reg = NULL;
353 unsigned dns_port = 0;
356 return open_sockets_inetd();
361 static int atexit_set;
362 if(atexit_set == 0) {
370 CatchSignal(SIGCLD, sig_cld);
372 FD_ZERO(&listen_set);
374 /* use a reasonable default set of ports - listing on 445 and 139 */
376 ports = lp_smb_ports();
377 if (!ports || !*ports) {
378 ports = smb_xstrdup(SMB_PORTS);
380 ports = smb_xstrdup(ports);
383 ports = smb_xstrdup(smb_ports);
386 if (lp_interfaces() && lp_bind_interfaces_only()) {
387 /* We have been given an interfaces line, and been
388 told to only bind to those interfaces. Create a
389 socket per interface and bind to only these.
392 /* Now open a listen socket for each of the
394 for(i = 0; i < num_interfaces; i++) {
395 TALLOC_CTX *frame = NULL;
396 const struct sockaddr_storage *ifss =
397 iface_n_sockaddr_storage(i);
402 DEBUG(0,("open_sockets_smbd: "
403 "interface %d has NULL IP address !\n",
408 frame = talloc_stackframe();
410 next_token_talloc(frame,&ptr, &tok, " \t,");) {
411 unsigned port = atoi(tok);
412 if (port == 0 || port > 0xffff) {
416 /* Keep the first port for mDNS service
423 s = fd_listenset[num_sockets] =
424 open_socket_in(SOCK_STREAM,
426 num_sockets == 0 ? 0 : 2,
433 /* ready to listen */
434 set_socket_options(s,"SO_KEEPALIVE");
435 set_socket_options(s,lp_socket_options());
437 /* Set server socket to
438 * non-blocking for the accept. */
439 set_blocking(s,False);
441 if (listen(s, SMBD_LISTEN_BACKLOG) == -1) {
442 DEBUG(0,("open_sockets_smbd: listen: "
443 "%s\n", strerror(errno)));
448 FD_SET(s,&listen_set);
449 maxfd = MAX( maxfd, s);
452 if (num_sockets >= FD_SETSIZE) {
453 DEBUG(0,("open_sockets_smbd: Too "
454 "many sockets to bind to\n"));
462 /* Just bind to 0.0.0.0 - accept connections
465 TALLOC_CTX *frame = talloc_stackframe();
468 const char *sock_addr = lp_socket_address();
470 const char *sock_ptr;
472 if (strequal(sock_addr, "0.0.0.0") ||
473 strequal(sock_addr, "::")) {
475 sock_addr = "::,0.0.0.0";
477 sock_addr = "0.0.0.0";
481 for (sock_ptr=sock_addr;
482 next_token_talloc(frame, &sock_ptr, &sock_tok, " \t,"); ) {
483 for (ptr=ports; next_token_talloc(frame, &ptr, &tok, " \t,"); ) {
484 struct sockaddr_storage ss;
486 unsigned port = atoi(tok);
487 if (port == 0 || port > 0xffff) {
491 /* Keep the first port for mDNS service
498 /* open an incoming socket */
499 if (!interpret_string_addr(&ss, sock_tok,
500 AI_NUMERICHOST|AI_PASSIVE)) {
504 s = open_socket_in(SOCK_STREAM,
506 num_sockets == 0 ? 0 : 2,
513 /* ready to listen */
514 set_socket_options(s,"SO_KEEPALIVE");
515 set_socket_options(s,lp_socket_options());
517 /* Set server socket to non-blocking
519 set_blocking(s,False);
521 if (listen(s, SMBD_LISTEN_BACKLOG) == -1) {
522 DEBUG(0,("open_sockets_smbd: "
530 fd_listenset[num_sockets] = s;
531 FD_SET(s,&listen_set);
532 maxfd = MAX( maxfd, s);
536 if (num_sockets >= FD_SETSIZE) {
537 DEBUG(0,("open_sockets_smbd: Too "
538 "many sockets to bind to\n"));
549 if (num_sockets == 0) {
550 DEBUG(0,("open_sockets_smbd: No "
551 "sockets available to bind to.\n"));
555 /* Setup the main smbd so that we can get messages. Note that
556 do this after starting listening. This is needed as when in
557 clustered mode, ctdb won't allow us to start doing database
558 operations until it has gone thru a full startup, which
559 includes checking to see that smbd is listening. */
560 claim_connection(NULL,"",
561 FLAG_MSG_GENERAL|FLAG_MSG_SMBD|FLAG_MSG_DBWRAP);
563 /* Listen to messages */
565 messaging_register(smbd_messaging_context(), NULL,
566 MSG_SMB_SAM_SYNC, msg_sam_sync);
567 messaging_register(smbd_messaging_context(), NULL,
568 MSG_SHUTDOWN, msg_exit_server);
569 messaging_register(smbd_messaging_context(), NULL,
570 MSG_SMB_FILE_RENAME, msg_file_was_renamed);
571 messaging_register(smbd_messaging_context(), NULL,
572 MSG_SMB_CONF_UPDATED, smb_conf_updated);
573 messaging_register(smbd_messaging_context(), NULL,
574 MSG_SMB_STAT_CACHE_DELETE, smb_stat_cache_delete);
575 brl_register_msgs(smbd_messaging_context());
577 #ifdef CLUSTER_SUPPORT
578 ctdbd_register_reconfigure(messaging_ctdbd_connection());
582 messaging_register(smbd_messaging_context(), NULL,
583 MSG_SMB_INJECT_FAULT, msg_inject_fault);
586 /* now accept incoming connections - forking a new process
587 for each incoming connection */
588 DEBUG(2,("waiting for a connection\n"));
590 struct timeval now, idle_timeout;
594 /* Ensure we respond to PING and DEBUG messages from the main smbd. */
595 message_dispatch(smbd_messaging_context());
603 while ((pid = sys_waitpid(-1, &status, WNOHANG)) > 0) {
604 bool unclean_shutdown = False;
606 /* If the child terminated normally, assume
607 it was an unclean shutdown unless the
610 if (WIFEXITED(status)) {
611 unclean_shutdown = WEXITSTATUS(status);
613 /* If the child terminated due to a signal
614 we always assume it was unclean.
616 if (WIFSIGNALED(status)) {
617 unclean_shutdown = True;
619 remove_child_pid(pid, unclean_shutdown);
623 idle_timeout = timeval_zero();
625 memcpy((char *)&r_fds, (char *)&listen_set,
630 /* Kick off our mDNS registration. */
632 dns_register_smbd(&dns_reg, dns_port, &maxfd,
633 &r_fds, &idle_timeout);
636 event_add_to_select_args(smbd_event_context(), &now,
637 &r_fds, &w_fds, &idle_timeout,
640 num = sys_select(maxfd+1,&r_fds,&w_fds,NULL,
641 timeval_is_zero(&idle_timeout) ?
642 NULL : &idle_timeout);
644 if (num == -1 && errno == EINTR) {
646 exit_server_cleanly(NULL);
649 /* check for sighup processing */
650 if (reload_after_sighup) {
651 change_to_root_user();
652 DEBUG(1,("Reloading services after SIGHUP\n"));
653 reload_services(False);
654 reload_after_sighup = 0;
661 /* If the idle timeout fired and we don't have any connected
662 * users, exit gracefully. We should be running under a process
663 * controller that will restart us if necessry.
665 if (num == 0 && count_all_current_connections() == 0) {
666 exit_server_cleanly("idle timeout");
669 /* process pending nDNS responses */
670 if (dns_register_smbd_reply(dns_reg, &r_fds, &idle_timeout)) {
674 if (run_events(smbd_event_context(), num, &r_fds, &w_fds)) {
678 /* check if we need to reload services */
679 check_reload(time(NULL));
681 /* Find the sockets that are read-ready -
683 for( ; num > 0; num--) {
684 struct sockaddr addr;
685 socklen_t in_addrlen = sizeof(addr);
689 for(i = 0; i < num_sockets; i++) {
690 if(FD_ISSET(fd_listenset[i],&r_fds)) {
692 /* Clear this so we don't look
694 FD_CLR(fd_listenset[i],&r_fds);
699 smbd_set_server_fd(accept(s,&addr,&in_addrlen));
701 if (smbd_server_fd() == -1 && errno == EINTR)
704 if (smbd_server_fd() == -1) {
705 DEBUG(2,("open_sockets_smbd: accept: %s\n",
710 /* Ensure child is set to blocking mode */
711 set_blocking(smbd_server_fd(),True);
713 if (smbd_server_fd() != -1 && interactive)
716 if (allowable_number_of_smbd_processes() &&
717 smbd_server_fd() != -1 &&
718 ((child = sys_fork())==0)) {
719 char remaddr[INET6_ADDRSTRLEN];
723 /* Stop zombies, the parent explicitly handles
724 * them, counting worker smbds. */
727 /* close the listening socket(s) */
728 for(i = 0; i < num_sockets; i++)
729 close(fd_listenset[i]);
731 /* close our mDNS daemon handle */
732 dns_register_close(&dns_reg);
734 /* close our standard file
736 close_low_fds(False);
739 set_socket_options(smbd_server_fd(),"SO_KEEPALIVE");
740 set_socket_options(smbd_server_fd(),
741 lp_socket_options());
743 /* this is needed so that we get decent entries
744 in smbstatus for port 445 connects */
745 set_remote_machine_name(get_peer_addr(smbd_server_fd(),
750 if (!reinit_after_fork(
751 smbd_messaging_context(), true)) {
752 DEBUG(0,("reinit_after_fork() failed\n"));
753 smb_panic("reinit_after_fork() failed");
758 /* The parent doesn't need this socket */
759 close(smbd_server_fd());
761 /* Sun May 6 18:56:14 2001 ackley@cs.unm.edu:
762 Clear the closed fd info out of server_fd --
763 and more importantly, out of client_fd in
764 util_sock.c, to avoid a possible
765 getpeername failure if we reopen the logs
766 and use %I in the filename.
769 smbd_set_server_fd(-1);
772 add_child_pid(child);
775 /* Force parent to check log size after
776 * spawning child. Fix from
777 * klausr@ITAP.Physik.Uni-Stuttgart.De. The
778 * parent smbd will log to logserver.smb. It
779 * writes only two messages for each child
780 * started/finished. But each child writes,
781 * say, 50 messages also in logserver.smb,
782 * begining with the debug_count of the
783 * parent, before the child opens its own log
784 * file logserver.client. In a worst case
785 * scenario the size of logserver.smb would be
786 * checked after about 50*50=2500 messages
789 force_check_log_size();
794 /* NOTREACHED return True; */
797 /****************************************************************************
799 **************************************************************************/
800 void reload_printers(void)
803 int n_services = lp_numservices();
804 int pnum = lp_servicenumber(PRINTERS_NAME);
809 /* remove stale printers */
810 for (snum = 0; snum < n_services; snum++) {
811 /* avoid removing PRINTERS_NAME or non-autoloaded printers */
812 if (snum == pnum || !(lp_snum_ok(snum) && lp_print_ok(snum) &&
813 lp_autoloaded(snum)))
816 pname = lp_printername(snum);
817 if (!pcap_printername_ok(pname)) {
818 DEBUG(3, ("removing stale printer %s\n", pname));
820 if (is_printer_published(NULL, snum, NULL))
821 nt_printer_publish(NULL, snum, SPOOL_DS_UNPUBLISH);
822 del_a_printer(pname);
823 lp_killservice(snum);
830 /****************************************************************************
831 Reload the services file.
832 **************************************************************************/
834 bool reload_services(bool test)
839 char *fname = lp_configfile();
840 if (file_exist(fname, NULL) &&
841 !strcsequal(fname, get_dyn_CONFIGFILE())) {
842 set_dyn_CONFIGFILE(fname);
849 if (test && !lp_file_list_changed())
852 lp_killunused(conn_snum_used);
854 ret = lp_load(get_dyn_CONFIGFILE(), False, False, True, True);
858 /* perhaps the config filename is now set */
860 reload_services(True);
866 if (smbd_server_fd() != -1) {
867 set_socket_options(smbd_server_fd(),"SO_KEEPALIVE");
868 set_socket_options(smbd_server_fd(), lp_socket_options());
871 mangle_reset_cache();
874 /* this forces service parameters to be flushed */
875 set_current_service(NULL,0,True);
880 /****************************************************************************
882 ****************************************************************************/
884 /* Reasons for shutting down a server process. */
885 enum server_exit_reason { SERVER_EXIT_NORMAL, SERVER_EXIT_ABNORMAL };
887 static void exit_server_common(enum server_exit_reason how,
888 const char *const reason) NORETURN_ATTRIBUTE;
890 static void exit_server_common(enum server_exit_reason how,
891 const char *const reason)
893 static int firsttime=1;
900 change_to_root_user();
902 if (negprot_global_auth_context) {
903 (negprot_global_auth_context->free)(&negprot_global_auth_context);
906 had_open_conn = conn_close_all();
908 invalidate_all_vuids();
910 /* 3 second timeout. */
911 print_notify_send_messages(smbd_messaging_context(), 3);
913 /* delete our entry in the connections database. */
914 yield_connection(NULL,"");
916 respond_to_all_remaining_local_messages();
919 if (dcelogin_atmost_once) {
925 /* Destroy Samba DMAPI session only if we are master smbd process */
927 if (!dmapi_destroy_session()) {
928 DEBUG(0,("Unable to close Samba DMAPI session\n"));
936 if (how != SERVER_EXIT_NORMAL) {
937 int oldlevel = DEBUGLEVEL;
942 DEBUG(0,("Abnormal server exit: %s\n",
943 reason ? reason : "no explanation provided"));
948 DEBUGLEVEL = oldlevel;
952 DEBUG(3,("Server exit (%s)\n",
953 (reason ? reason : "normal exit")));
956 /* if we had any open SMB connections when we exited then we
957 need to tell the parent smbd so that it can trigger a retry
958 of any locks we may have been holding or open files we were
967 void exit_server(const char *const explanation)
969 exit_server_common(SERVER_EXIT_ABNORMAL, explanation);
972 void exit_server_cleanly(const char *const explanation)
974 exit_server_common(SERVER_EXIT_NORMAL, explanation);
977 void exit_server_fault(void)
979 exit_server("critical server fault");
983 /****************************************************************************
984 received when we should release a specific IP
985 ****************************************************************************/
986 static void release_ip(const char *ip, void *priv)
988 char addr[INET6_ADDRSTRLEN];
990 if (strcmp(client_socket_addr(get_client_fd(),addr,sizeof(addr)), ip) == 0) {
991 /* we can't afford to do a clean exit - that involves
992 database writes, which would potentially mean we
993 are still running after the failover has finished -
994 we have to get rid of this process ID straight
996 DEBUG(0,("Got release IP message for our IP %s - exiting immediately\n",
998 /* note we must exit with non-zero status so the unclean handler gets
999 called in the parent, so that the brl database is tickled */
1004 static void msg_release_ip(struct messaging_context *msg_ctx, void *private_data,
1005 uint32_t msg_type, struct server_id server_id, DATA_BLOB *data)
1007 release_ip((char *)data->data, NULL);
1010 /****************************************************************************
1011 Initialise connect, service and file structs.
1012 ****************************************************************************/
1014 static bool init_structs(void )
1017 * Set the machine NETBIOS name if not already
1018 * set from the config file.
1029 init_rpc_pipe_hnd();
1033 if (!secrets_init())
1040 * Send keepalive packets to our client
1042 static bool keepalive_fn(const struct timeval *now, void *private_data)
1044 if (!send_keepalive(smbd_server_fd())) {
1045 DEBUG( 2, ( "Keepalive failed - exiting.\n" ) );
1052 * Do the recurring check if we're idle
1054 static bool deadtime_fn(const struct timeval *now, void *private_data)
1056 if ((conn_num_open() == 0)
1057 || (conn_idle_all(now->tv_sec))) {
1058 DEBUG( 2, ( "Closing idle connection\n" ) );
1059 messaging_send(smbd_messaging_context(), procid_self(),
1060 MSG_SHUTDOWN, &data_blob_null);
1068 /****************************************************************************
1070 ****************************************************************************/
1072 /* Declare prototype for build_options() to avoid having to run it through
1073 mkproto.h. Mixing $(builddir) and $(srcdir) source files in the current
1074 prototype generation system is too complicated. */
1076 extern void build_options(bool screen);
1078 int main(int argc,const char *argv[])
1080 /* shall I run as a daemon */
1081 static bool is_daemon = False;
1082 static bool interactive = False;
1083 static bool Fork = True;
1084 static bool no_process_group = False;
1085 static bool log_stdout = False;
1086 static char *ports = NULL;
1087 static char *profile_level = NULL;
1090 bool print_build_options = False;
1095 OPT_NO_PROCESS_GROUP,
1098 struct poptOption long_options[] = {
1100 {"daemon", 'D', POPT_ARG_NONE, NULL, OPT_DAEMON, "Become a daemon (default)" },
1101 {"interactive", 'i', POPT_ARG_NONE, NULL, OPT_INTERACTIVE, "Run interactive (not a daemon)"},
1102 {"foreground", 'F', POPT_ARG_NONE, NULL, OPT_FORK, "Run daemon in foreground (for daemontools, etc.)" },
1103 {"no-process-group", '\0', POPT_ARG_NONE, NULL, OPT_NO_PROCESS_GROUP, "Don't create a new process group" },
1104 {"log-stdout", 'S', POPT_ARG_NONE, NULL, OPT_LOG_STDOUT, "Log to stdout" },
1105 {"build-options", 'b', POPT_ARG_NONE, NULL, 'b', "Print build options" },
1106 {"port", 'p', POPT_ARG_STRING, &ports, 0, "Listen on the specified ports"},
1107 {"profiling-level", 'P', POPT_ARG_STRING, &profile_level, 0, "Set profiling level","PROFILE_LEVEL"},
1109 POPT_COMMON_DYNCONFIG
1112 TALLOC_CTX *frame = talloc_stackframe(); /* Setup tos. */
1116 #ifdef HAVE_SET_AUTH_PARAMETERS
1117 set_auth_parameters(argc,argv);
1120 pc = poptGetContext("smbd", argc, argv, long_options, 0);
1121 while((opt = poptGetNextOpt(pc)) != -1) {
1126 case OPT_INTERACTIVE:
1132 case OPT_NO_PROCESS_GROUP:
1133 no_process_group = true;
1135 case OPT_LOG_STDOUT:
1139 print_build_options = True;
1142 d_fprintf(stderr, "\nInvalid option %s: %s\n\n",
1143 poptBadOption(pc, 0), poptStrerror(opt));
1144 poptPrintUsage(pc, stderr, 0);
1148 poptFreeContext(pc);
1155 setup_logging(argv[0],log_stdout);
1157 if (print_build_options) {
1158 build_options(True); /* Display output to screen as well as debug */
1165 /* needed for SecureWare on SCO */
1171 set_remote_machine_name("smbd", False);
1173 if (interactive && (DEBUGLEVEL >= 9)) {
1174 talloc_enable_leak_report();
1177 if (log_stdout && Fork) {
1178 DEBUG(0,("ERROR: Can't log to stdout (-S) unless daemon is in foreground (-F) or interactive (-i)\n"));
1182 /* we want to re-seed early to prevent time delays causing
1183 client problems at a later date. (tridge) */
1184 generate_random_buffer(NULL, 0);
1186 /* make absolutely sure we run as root - to handle cases where people
1187 are crazy enough to have it setuid */
1189 gain_root_privilege();
1190 gain_root_group_privilege();
1192 fault_setup((void (*)(void *))exit_server_fault);
1193 dump_core_setup("smbd");
1195 CatchSignal(SIGTERM , SIGNAL_CAST sig_term);
1196 CatchSignal(SIGHUP,SIGNAL_CAST sig_hup);
1198 /* we are never interested in SIGPIPE */
1199 BlockSignals(True,SIGPIPE);
1202 /* we are never interested in SIGFPE */
1203 BlockSignals(True,SIGFPE);
1206 #if defined(SIGUSR2)
1207 /* We are no longer interested in USR2 */
1208 BlockSignals(True,SIGUSR2);
1211 /* POSIX demands that signals are inherited. If the invoking process has
1212 * these signals masked, we will have problems, as we won't recieve them. */
1213 BlockSignals(False, SIGHUP);
1214 BlockSignals(False, SIGUSR1);
1215 BlockSignals(False, SIGTERM);
1217 /* we want total control over the permissions on created files,
1218 so set our umask to 0 */
1225 DEBUG(0,("smbd version %s started.\n", SAMBA_VERSION_STRING));
1226 DEBUGADD(0,("%s\n", COPYRIGHT_STARTUP_MESSAGE));
1228 DEBUG(2,("uid=%d gid=%d euid=%d egid=%d\n",
1229 (int)getuid(),(int)getgid(),(int)geteuid(),(int)getegid()));
1231 /* Output the build options to the debug log */
1232 build_options(False);
1234 if (sizeof(uint16) < 2 || sizeof(uint32) < 4) {
1235 DEBUG(0,("ERROR: Samba is not configured correctly for the word size on your machine\n"));
1239 if (!lp_load_initial_only(get_dyn_CONFIGFILE())) {
1240 DEBUG(0, ("error opening config file\n"));
1244 if (smbd_messaging_context() == NULL)
1247 if (!reload_services(False))
1253 if (!profile_setup(smbd_messaging_context(), False)) {
1254 DEBUG(0,("ERROR: failed to setup profiling\n"));
1257 if (profile_level != NULL) {
1258 int pl = atoi(profile_level);
1259 struct server_id src;
1261 DEBUG(1, ("setting profiling level: %s\n",profile_level));
1263 set_profile_level(pl, src);
1267 DEBUG(3,( "loaded services\n"));
1269 if (!is_daemon && !is_a_socket(0)) {
1271 DEBUG(0,("standard input is not a socket, assuming -D option\n"));
1274 * Setting is_daemon here prevents us from eventually calling
1275 * the open_sockets_inetd()
1281 if (is_daemon && !interactive) {
1282 DEBUG( 3, ( "Becoming a daemon.\n" ) );
1283 become_daemon(Fork, no_process_group);
1288 * If we're interactive we want to set our own process group for
1289 * signal management.
1291 if (interactive && !no_process_group)
1292 setpgid( (pid_t)0, (pid_t)0);
1295 if (!directory_exist(lp_lockdir(), NULL))
1296 mkdir(lp_lockdir(), 0755);
1299 pidfile_create("smbd");
1301 if (!reinit_after_fork(smbd_messaging_context(), false)) {
1302 DEBUG(0,("reinit_after_fork() failed\n"));
1306 /* Setup all the TDB's - including CLEAR_IF_FIRST tdb's. */
1308 if (smbd_memcache() == NULL) {
1312 memcache_set_global(smbd_memcache());
1314 /* Initialise the password backed before the global_sam_sid
1315 to ensure that we fetch from ldap before we make a domain sid up */
1317 if(!initialize_password_db(False, smbd_event_context()))
1320 if (!secrets_init()) {
1321 DEBUG(0, ("ERROR: smbd can not open secrets.tdb\n"));
1325 if(!get_global_sam_sid()) {
1326 DEBUG(0,("ERROR: Samba cannot create a SAM SID.\n"));
1330 if (!session_init())
1333 if (!connections_init(True))
1336 if (!locking_init())
1341 if (!W_ERROR_IS_OK(registry_init_full()))
1345 if (!init_svcctl_db())
1349 if (!print_backend_init(smbd_messaging_context()))
1352 if (!init_guest_info()) {
1353 DEBUG(0,("ERROR: failed to setup guest info.\n"));
1357 /* only start the background queue daemon if we are
1358 running as a daemon -- bad things will happen if
1359 smbd is launched via inetd and we fork a copy of
1362 if (is_daemon && !interactive
1363 && lp_parm_bool(-1, "smbd", "backgroundqueue", true)) {
1364 start_background_queue();
1367 if (!open_sockets_smbd(is_daemon, interactive, ports))
1371 * everything after this point is run after the fork()
1378 /* Possibly reload the services file. Only worth doing in
1379 * daemon mode. In inetd mode, we know we only just loaded this.
1382 reload_services(True);
1385 if (!init_account_policy()) {
1386 DEBUG(0,("Could not open account policy tdb.\n"));
1390 if (*lp_rootdir()) {
1391 if (sys_chroot(lp_rootdir()) == 0)
1392 DEBUG(2,("Changed root to %s\n", lp_rootdir()));
1396 if (!init_oplocks(smbd_messaging_context()))
1399 /* Setup aio signal handler. */
1400 initialize_async_io_handler();
1402 /* register our message handlers */
1403 messaging_register(smbd_messaging_context(), NULL,
1404 MSG_SMB_FORCE_TDIS, msg_force_tdis);
1405 messaging_register(smbd_messaging_context(), NULL,
1406 MSG_SMB_RELEASE_IP, msg_release_ip);
1407 messaging_register(smbd_messaging_context(), NULL,
1408 MSG_SMB_CLOSE_FILE, msg_close_file);
1410 if ((lp_keepalive() != 0)
1411 && !(event_add_idle(smbd_event_context(), NULL,
1412 timeval_set(lp_keepalive(), 0),
1413 "keepalive", keepalive_fn,
1415 DEBUG(0, ("Could not add keepalive event\n"));
1419 if (!(event_add_idle(smbd_event_context(), NULL,
1420 timeval_set(IDLE_CLOSED_TIMEOUT, 0),
1421 "deadtime", deadtime_fn, NULL))) {
1422 DEBUG(0, ("Could not add deadtime event\n"));
1426 #ifdef CLUSTER_SUPPORT
1428 if (lp_clustering()) {
1430 * We need to tell ctdb about our client's TCP
1431 * connection, so that for failover ctdbd can send
1432 * tickle acks, triggering a reconnection by the
1436 struct sockaddr_in srv, clnt;
1438 if (client_get_tcp_info(&srv, &clnt) == 0) {
1442 status = ctdbd_register_ips(
1443 messaging_ctdbd_connection(),
1444 &srv, &clnt, release_ip, NULL);
1446 if (!NT_STATUS_IS_OK(status)) {
1447 DEBUG(0, ("ctdbd_register_ips failed: %s\n",
1448 nt_errstr(status)));
1452 DEBUG(0,("Unable to get tcp info for "
1453 "CTDB_CONTROL_TCP_CLIENT: %s\n",
1464 namecache_shutdown();
1466 exit_server_cleanly(NULL);