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(0,(__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;
899 change_to_root_user();
901 if (negprot_global_auth_context) {
902 (negprot_global_auth_context->free)(&negprot_global_auth_context);
907 invalidate_all_vuids();
909 /* 3 second timeout. */
910 print_notify_send_messages(smbd_messaging_context(), 3);
912 /* delete our entry in the connections database. */
913 yield_connection(NULL,"");
915 respond_to_all_remaining_local_messages();
918 if (dcelogin_atmost_once) {
924 /* Destroy Samba DMAPI session only if we are master smbd process */
926 if (!dmapi_destroy_session()) {
927 DEBUG(0,("Unable to close Samba DMAPI session\n"));
935 if (how != SERVER_EXIT_NORMAL) {
936 int oldlevel = DEBUGLEVEL;
941 DEBUG(0,("Abnormal server exit: %s\n",
942 reason ? reason : "no explanation provided"));
947 DEBUGLEVEL = oldlevel;
951 DEBUG(3,("Server exit (%s)\n",
952 (reason ? reason : "normal exit")));
958 void exit_server(const char *const explanation)
960 exit_server_common(SERVER_EXIT_ABNORMAL, explanation);
963 void exit_server_cleanly(const char *const explanation)
965 exit_server_common(SERVER_EXIT_NORMAL, explanation);
968 void exit_server_fault(void)
970 exit_server("critical server fault");
974 /****************************************************************************
975 received when we should release a specific IP
976 ****************************************************************************/
977 static void release_ip(const char *ip, void *priv)
979 char addr[INET6_ADDRSTRLEN];
981 if (strcmp(client_socket_addr(get_client_fd(),addr,sizeof(addr)), ip) == 0) {
982 /* we can't afford to do a clean exit - that involves
983 database writes, which would potentially mean we
984 are still running after the failover has finished -
985 we have to get rid of this process ID straight
987 DEBUG(0,("Got release IP message for our IP %s - exiting immediately\n",
989 /* note we must exit with non-zero status so the unclean handler gets
990 called in the parent, so that the brl database is tickled */
995 static void msg_release_ip(struct messaging_context *msg_ctx, void *private_data,
996 uint32_t msg_type, struct server_id server_id, DATA_BLOB *data)
998 release_ip((char *)data->data, NULL);
1001 /****************************************************************************
1002 Initialise connect, service and file structs.
1003 ****************************************************************************/
1005 static bool init_structs(void )
1008 * Set the machine NETBIOS name if not already
1009 * set from the config file.
1020 init_rpc_pipe_hnd();
1024 if (!secrets_init())
1031 * Send keepalive packets to our client
1033 static bool keepalive_fn(const struct timeval *now, void *private_data)
1035 if (!send_keepalive(smbd_server_fd())) {
1036 DEBUG( 2, ( "Keepalive failed - exiting.\n" ) );
1043 * Do the recurring check if we're idle
1045 static bool deadtime_fn(const struct timeval *now, void *private_data)
1047 if ((conn_num_open() == 0)
1048 || (conn_idle_all(now->tv_sec))) {
1049 DEBUG( 2, ( "Closing idle connection\n" ) );
1050 messaging_send(smbd_messaging_context(), procid_self(),
1051 MSG_SHUTDOWN, &data_blob_null);
1059 /****************************************************************************
1061 ****************************************************************************/
1063 /* Declare prototype for build_options() to avoid having to run it through
1064 mkproto.h. Mixing $(builddir) and $(srcdir) source files in the current
1065 prototype generation system is too complicated. */
1067 extern void build_options(bool screen);
1069 int main(int argc,const char *argv[])
1071 /* shall I run as a daemon */
1072 static bool is_daemon = False;
1073 static bool interactive = False;
1074 static bool Fork = True;
1075 static bool no_process_group = False;
1076 static bool log_stdout = False;
1077 static char *ports = NULL;
1078 static char *profile_level = NULL;
1081 bool print_build_options = False;
1086 OPT_NO_PROCESS_GROUP,
1089 struct poptOption long_options[] = {
1091 {"daemon", 'D', POPT_ARG_NONE, NULL, OPT_DAEMON, "Become a daemon (default)" },
1092 {"interactive", 'i', POPT_ARG_NONE, NULL, OPT_INTERACTIVE, "Run interactive (not a daemon)"},
1093 {"foreground", 'F', POPT_ARG_NONE, NULL, OPT_FORK, "Run daemon in foreground (for daemontools, etc.)" },
1094 {"no-process-group", '\0', POPT_ARG_NONE, NULL, OPT_NO_PROCESS_GROUP, "Don't create a new process group" },
1095 {"log-stdout", 'S', POPT_ARG_NONE, NULL, OPT_LOG_STDOUT, "Log to stdout" },
1096 {"build-options", 'b', POPT_ARG_NONE, NULL, 'b', "Print build options" },
1097 {"port", 'p', POPT_ARG_STRING, &ports, 0, "Listen on the specified ports"},
1098 {"profiling-level", 'P', POPT_ARG_STRING, &profile_level, 0, "Set profiling level","PROFILE_LEVEL"},
1100 POPT_COMMON_DYNCONFIG
1103 TALLOC_CTX *frame = talloc_stackframe(); /* Setup tos. */
1107 #ifdef HAVE_SET_AUTH_PARAMETERS
1108 set_auth_parameters(argc,argv);
1111 pc = poptGetContext("smbd", argc, argv, long_options, 0);
1112 while((opt = poptGetNextOpt(pc)) != -1) {
1117 case OPT_INTERACTIVE:
1123 case OPT_NO_PROCESS_GROUP:
1124 no_process_group = true;
1126 case OPT_LOG_STDOUT:
1130 print_build_options = True;
1133 d_fprintf(stderr, "\nInvalid option %s: %s\n\n",
1134 poptBadOption(pc, 0), poptStrerror(opt));
1135 poptPrintUsage(pc, stderr, 0);
1139 poptFreeContext(pc);
1146 setup_logging(argv[0],log_stdout);
1148 if (print_build_options) {
1149 build_options(True); /* Display output to screen as well as debug */
1156 /* needed for SecureWare on SCO */
1162 set_remote_machine_name("smbd", False);
1164 if (interactive && (DEBUGLEVEL >= 9)) {
1165 talloc_enable_leak_report();
1168 if (log_stdout && Fork) {
1169 DEBUG(0,("ERROR: Can't log to stdout (-S) unless daemon is in foreground (-F) or interactive (-i)\n"));
1173 /* we want to re-seed early to prevent time delays causing
1174 client problems at a later date. (tridge) */
1175 generate_random_buffer(NULL, 0);
1177 /* make absolutely sure we run as root - to handle cases where people
1178 are crazy enough to have it setuid */
1180 gain_root_privilege();
1181 gain_root_group_privilege();
1183 fault_setup((void (*)(void *))exit_server_fault);
1184 dump_core_setup("smbd");
1186 CatchSignal(SIGTERM , SIGNAL_CAST sig_term);
1187 CatchSignal(SIGHUP,SIGNAL_CAST sig_hup);
1189 /* we are never interested in SIGPIPE */
1190 BlockSignals(True,SIGPIPE);
1193 /* we are never interested in SIGFPE */
1194 BlockSignals(True,SIGFPE);
1197 #if defined(SIGUSR2)
1198 /* We are no longer interested in USR2 */
1199 BlockSignals(True,SIGUSR2);
1202 /* POSIX demands that signals are inherited. If the invoking process has
1203 * these signals masked, we will have problems, as we won't recieve them. */
1204 BlockSignals(False, SIGHUP);
1205 BlockSignals(False, SIGUSR1);
1206 BlockSignals(False, SIGTERM);
1208 /* we want total control over the permissions on created files,
1209 so set our umask to 0 */
1216 DEBUG(0,("smbd version %s started.\n", SAMBA_VERSION_STRING));
1217 DEBUGADD(0,("%s\n", COPYRIGHT_STARTUP_MESSAGE));
1219 DEBUG(2,("uid=%d gid=%d euid=%d egid=%d\n",
1220 (int)getuid(),(int)getgid(),(int)geteuid(),(int)getegid()));
1222 /* Output the build options to the debug log */
1223 build_options(False);
1225 if (sizeof(uint16) < 2 || sizeof(uint32) < 4) {
1226 DEBUG(0,("ERROR: Samba is not configured correctly for the word size on your machine\n"));
1230 if (!lp_load_initial_only(get_dyn_CONFIGFILE())) {
1231 DEBUG(0, ("error opening config file\n"));
1235 if (smbd_messaging_context() == NULL)
1238 if (!reload_services(False))
1244 if (!profile_setup(smbd_messaging_context(), False)) {
1245 DEBUG(0,("ERROR: failed to setup profiling\n"));
1248 if (profile_level != NULL) {
1249 int pl = atoi(profile_level);
1250 struct server_id src;
1252 DEBUG(1, ("setting profiling level: %s\n",profile_level));
1254 set_profile_level(pl, src);
1258 DEBUG(3,( "loaded services\n"));
1260 if (!is_daemon && !is_a_socket(0)) {
1262 DEBUG(0,("standard input is not a socket, assuming -D option\n"));
1265 * Setting is_daemon here prevents us from eventually calling
1266 * the open_sockets_inetd()
1272 if (is_daemon && !interactive) {
1273 DEBUG( 3, ( "Becoming a daemon.\n" ) );
1274 become_daemon(Fork, no_process_group);
1279 * If we're interactive we want to set our own process group for
1280 * signal management.
1282 if (interactive && !no_process_group)
1283 setpgid( (pid_t)0, (pid_t)0);
1286 if (!directory_exist(lp_lockdir(), NULL))
1287 mkdir(lp_lockdir(), 0755);
1290 pidfile_create("smbd");
1292 if (!reinit_after_fork(smbd_messaging_context(), false)) {
1293 DEBUG(0,("reinit_after_fork() failed\n"));
1297 /* Setup all the TDB's - including CLEAR_IF_FIRST tdb's. */
1299 if (smbd_memcache() == NULL) {
1303 memcache_set_global(smbd_memcache());
1305 /* Initialise the password backed before the global_sam_sid
1306 to ensure that we fetch from ldap before we make a domain sid up */
1308 if(!initialize_password_db(False, smbd_event_context()))
1311 if (!secrets_init()) {
1312 DEBUG(0, ("ERROR: smbd can not open secrets.tdb\n"));
1316 if(!get_global_sam_sid()) {
1317 DEBUG(0,("ERROR: Samba cannot create a SAM SID.\n"));
1321 if (!session_init())
1324 if (!connections_init(True))
1327 if (!locking_init())
1332 if (!W_ERROR_IS_OK(registry_init_full()))
1336 if (!init_svcctl_db())
1340 if (!print_backend_init(smbd_messaging_context()))
1343 if (!init_guest_info()) {
1344 DEBUG(0,("ERROR: failed to setup guest info.\n"));
1348 /* only start the background queue daemon if we are
1349 running as a daemon -- bad things will happen if
1350 smbd is launched via inetd and we fork a copy of
1353 if (is_daemon && !interactive
1354 && lp_parm_bool(-1, "smbd", "backgroundqueue", true)) {
1355 start_background_queue();
1358 if (!open_sockets_smbd(is_daemon, interactive, ports))
1362 * everything after this point is run after the fork()
1369 /* Possibly reload the services file. Only worth doing in
1370 * daemon mode. In inetd mode, we know we only just loaded this.
1373 reload_services(True);
1376 if (!init_account_policy()) {
1377 DEBUG(0,("Could not open account policy tdb.\n"));
1381 if (*lp_rootdir()) {
1382 if (sys_chroot(lp_rootdir()) == 0)
1383 DEBUG(2,("Changed root to %s\n", lp_rootdir()));
1387 if (!init_oplocks(smbd_messaging_context()))
1390 /* Setup aio signal handler. */
1391 initialize_async_io_handler();
1393 /* register our message handlers */
1394 messaging_register(smbd_messaging_context(), NULL,
1395 MSG_SMB_FORCE_TDIS, msg_force_tdis);
1396 messaging_register(smbd_messaging_context(), NULL,
1397 MSG_SMB_RELEASE_IP, msg_release_ip);
1398 messaging_register(smbd_messaging_context(), NULL,
1399 MSG_SMB_CLOSE_FILE, msg_close_file);
1401 if ((lp_keepalive() != 0)
1402 && !(event_add_idle(smbd_event_context(), NULL,
1403 timeval_set(lp_keepalive(), 0),
1404 "keepalive", keepalive_fn,
1406 DEBUG(0, ("Could not add keepalive event\n"));
1410 if (!(event_add_idle(smbd_event_context(), NULL,
1411 timeval_set(IDLE_CLOSED_TIMEOUT, 0),
1412 "deadtime", deadtime_fn, NULL))) {
1413 DEBUG(0, ("Could not add deadtime event\n"));
1417 #ifdef CLUSTER_SUPPORT
1419 if (lp_clustering()) {
1421 * We need to tell ctdb about our client's TCP
1422 * connection, so that for failover ctdbd can send
1423 * tickle acks, triggering a reconnection by the
1427 struct sockaddr_in srv, clnt;
1429 if (client_get_tcp_info(&srv, &clnt) == 0) {
1433 status = ctdbd_register_ips(
1434 messaging_ctdbd_connection(),
1435 &srv, &clnt, release_ip, NULL);
1437 if (!NT_STATUS_IS_OK(status)) {
1438 DEBUG(0, ("ctdbd_register_ips failed: %s\n",
1439 nt_errstr(status)));
1443 DEBUG(0,("Unable to get tcp info for "
1444 "CTDB_CONTROL_TCP_CLIENT: %s\n",
1455 namecache_shutdown();
1457 exit_server_cleanly(NULL);