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 "smbd/globals.h"
30 extern int dcelogin_atmost_once;
33 int smbd_server_fd(void)
38 static void smbd_set_server_fd(int fd)
43 int get_client_fd(void)
48 #ifdef CLUSTER_SUPPORT
49 static int client_get_tcp_info(struct sockaddr_storage *server,
50 struct sockaddr_storage *client)
53 if (server_fd == -1) {
56 length = sizeof(*server);
57 if (getsockname(server_fd, (struct sockaddr *)server, &length) != 0) {
60 length = sizeof(*client);
61 if (getpeername(server_fd, (struct sockaddr *)client, &length) != 0) {
68 struct event_context *smbd_event_context(void)
70 if (!smbd_event_ctx) {
71 smbd_event_ctx = event_context_init(talloc_autofree_context());
73 if (!smbd_event_ctx) {
74 smb_panic("Could not init smbd event context");
76 return smbd_event_ctx;
79 struct messaging_context *smbd_messaging_context(void)
81 if (smbd_msg_ctx == NULL) {
82 smbd_msg_ctx = messaging_init(talloc_autofree_context(),
84 smbd_event_context());
86 if (smbd_msg_ctx == NULL) {
87 DEBUG(0, ("Could not init smbd messaging context.\n"));
92 struct memcache *smbd_memcache(void)
94 if (!smbd_memcache_ctx) {
95 smbd_memcache_ctx = memcache_init(talloc_autofree_context(),
96 lp_max_stat_cache_size()*1024);
98 if (!smbd_memcache_ctx) {
99 smb_panic("Could not init smbd memcache");
102 return smbd_memcache_ctx;
105 /*******************************************************************
106 What to do when smb.conf is updated.
107 ********************************************************************/
109 static void smb_conf_updated(struct messaging_context *msg,
112 struct server_id server_id,
115 DEBUG(10,("smb_conf_updated: Got message saying smb.conf was "
116 "updated. Reloading.\n"));
117 reload_services(False);
121 /*******************************************************************
122 Delete a statcache entry.
123 ********************************************************************/
125 static void smb_stat_cache_delete(struct messaging_context *msg,
128 struct server_id server_id,
131 const char *name = (const char *)data->data;
132 DEBUG(10,("smb_stat_cache_delete: delete name %s\n", name));
133 stat_cache_delete(name);
136 /****************************************************************************
138 ****************************************************************************/
140 static void sig_term(void)
143 sys_select_signal(SIGTERM);
146 /****************************************************************************
148 ****************************************************************************/
150 static void sig_hup(int sig)
152 reload_after_sighup = 1;
153 sys_select_signal(SIGHUP);
156 /****************************************************************************
158 ****************************************************************************/
159 static void sig_cld(int sig)
162 sys_select_signal(SIGCLD);
165 /****************************************************************************
166 Send a SIGTERM to our process group.
167 *****************************************************************************/
169 static void killkids(void)
171 if(am_parent) kill(0,SIGTERM);
174 /****************************************************************************
175 Process a sam sync message - not sure whether to do this here or
177 ****************************************************************************/
179 static void msg_sam_sync(struct messaging_context *msg,
182 struct server_id server_id,
185 DEBUG(10, ("** sam sync message received, ignoring\n"));
189 /****************************************************************************
190 Open the socket communication - inetd.
191 ****************************************************************************/
193 static bool open_sockets_inetd(void)
195 /* Started from inetd. fd 0 is the socket. */
196 /* We will abort gracefully when the client or remote system
198 smbd_set_server_fd(dup(0));
200 /* close our standard file descriptors */
201 close_low_fds(False); /* Don't close stderr */
203 set_socket_options(smbd_server_fd(),"SO_KEEPALIVE");
204 set_socket_options(smbd_server_fd(), lp_socket_options());
209 static void msg_exit_server(struct messaging_context *msg,
212 struct server_id server_id,
215 DEBUG(3, ("got a SHUTDOWN message\n"));
216 exit_server_cleanly(NULL);
220 static void msg_inject_fault(struct messaging_context *msg,
223 struct server_id src,
228 if (data->length != sizeof(sig)) {
230 DEBUG(0, ("Process %s sent bogus signal injection request\n",
231 procid_str_static(&src)));
235 sig = *(int *)data->data;
237 exit_server("internal error injected");
242 DEBUG(0, ("Process %s requested injection of signal %d (%s)\n",
243 procid_str_static(&src), sig, strsignal(sig)));
245 DEBUG(0, ("Process %s requested injection of signal %d\n",
246 procid_str_static(&src), sig));
249 kill(sys_getpid(), sig);
251 #endif /* DEVELOPER */
254 struct child_pid *prev, *next;
258 static void add_child_pid(pid_t pid)
260 struct child_pid *child;
262 if (lp_max_smbd_processes() == 0) {
263 /* Don't bother with the child list if we don't care anyway */
267 child = SMB_MALLOC_P(struct child_pid);
269 DEBUG(0, ("Could not add child struct -- malloc failed\n"));
273 DLIST_ADD(children, child);
277 static void remove_child_pid(pid_t pid, bool unclean_shutdown)
279 struct child_pid *child;
281 if (unclean_shutdown) {
282 /* a child terminated uncleanly so tickle all processes to see
283 if they can grab any of the pending locks
285 DEBUG(3,(__location__ " Unclean shutdown of pid %u\n", pid));
286 messaging_send_buf(smbd_messaging_context(), procid_self(),
287 MSG_SMB_BRL_VALIDATE, NULL, 0);
288 message_send_all(smbd_messaging_context(),
289 MSG_SMB_UNLOCK, NULL, 0, NULL);
292 if (lp_max_smbd_processes() == 0) {
293 /* Don't bother with the child list if we don't care anyway */
297 for (child = children; child != NULL; child = child->next) {
298 if (child->pid == pid) {
299 struct child_pid *tmp = child;
300 DLIST_REMOVE(children, child);
307 DEBUG(0, ("Could not find child %d -- ignoring\n", (int)pid));
310 /****************************************************************************
311 Have we reached the process limit ?
312 ****************************************************************************/
314 static bool allowable_number_of_smbd_processes(void)
316 int max_processes = lp_max_smbd_processes();
321 return num_children < max_processes;
324 /****************************************************************************
325 Open the socket communication.
326 ****************************************************************************/
328 static bool open_sockets_smbd(bool is_daemon, bool interactive, const char *smb_ports)
330 int num_interfaces = iface_count();
332 int fd_listenset[FD_SETSIZE];
338 struct dns_reg_state * dns_reg = NULL;
339 unsigned dns_port = 0;
342 return open_sockets_inetd();
350 CatchSignal(SIGCLD, sig_cld);
352 FD_ZERO(&listen_set);
354 /* use a reasonable default set of ports - listing on 445 and 139 */
356 ports = lp_smb_ports();
357 if (!ports || !*ports) {
358 ports = smb_xstrdup(SMB_PORTS);
360 ports = smb_xstrdup(ports);
363 ports = smb_xstrdup(smb_ports);
366 if (lp_interfaces() && lp_bind_interfaces_only()) {
367 /* We have been given an interfaces line, and been
368 told to only bind to those interfaces. Create a
369 socket per interface and bind to only these.
372 /* Now open a listen socket for each of the
374 for(i = 0; i < num_interfaces; i++) {
375 TALLOC_CTX *frame = NULL;
376 const struct sockaddr_storage *ifss =
377 iface_n_sockaddr_storage(i);
382 DEBUG(0,("open_sockets_smbd: "
383 "interface %d has NULL IP address !\n",
388 frame = talloc_stackframe();
390 next_token_talloc(frame,&ptr, &tok, " \t,");) {
391 unsigned port = atoi(tok);
392 if (port == 0 || port > 0xffff) {
396 /* Keep the first port for mDNS service
403 s = fd_listenset[num_sockets] =
404 open_socket_in(SOCK_STREAM,
406 num_sockets == 0 ? 0 : 2,
413 /* ready to listen */
414 set_socket_options(s,"SO_KEEPALIVE");
415 set_socket_options(s,lp_socket_options());
417 /* Set server socket to
418 * non-blocking for the accept. */
419 set_blocking(s,False);
421 if (listen(s, SMBD_LISTEN_BACKLOG) == -1) {
422 DEBUG(0,("open_sockets_smbd: listen: "
423 "%s\n", strerror(errno)));
428 FD_SET(s,&listen_set);
429 maxfd = MAX( maxfd, s);
432 if (num_sockets >= FD_SETSIZE) {
433 DEBUG(0,("open_sockets_smbd: Too "
434 "many sockets to bind to\n"));
442 /* Just bind to 0.0.0.0 - accept connections
445 TALLOC_CTX *frame = talloc_stackframe();
448 const char *sock_addr = lp_socket_address();
450 const char *sock_ptr;
452 if (strequal(sock_addr, "0.0.0.0") ||
453 strequal(sock_addr, "::")) {
455 sock_addr = "::,0.0.0.0";
457 sock_addr = "0.0.0.0";
461 for (sock_ptr=sock_addr;
462 next_token_talloc(frame, &sock_ptr, &sock_tok, " \t,"); ) {
463 for (ptr=ports; next_token_talloc(frame, &ptr, &tok, " \t,"); ) {
464 struct sockaddr_storage ss;
466 unsigned port = atoi(tok);
467 if (port == 0 || port > 0xffff) {
471 /* Keep the first port for mDNS service
478 /* open an incoming socket */
479 if (!interpret_string_addr(&ss, sock_tok,
480 AI_NUMERICHOST|AI_PASSIVE)) {
484 s = open_socket_in(SOCK_STREAM,
486 num_sockets == 0 ? 0 : 2,
493 /* ready to listen */
494 set_socket_options(s,"SO_KEEPALIVE");
495 set_socket_options(s,lp_socket_options());
497 /* Set server socket to non-blocking
499 set_blocking(s,False);
501 if (listen(s, SMBD_LISTEN_BACKLOG) == -1) {
502 DEBUG(0,("open_sockets_smbd: "
510 fd_listenset[num_sockets] = s;
511 FD_SET(s,&listen_set);
512 maxfd = MAX( maxfd, s);
516 if (num_sockets >= FD_SETSIZE) {
517 DEBUG(0,("open_sockets_smbd: Too "
518 "many sockets to bind to\n"));
529 if (num_sockets == 0) {
530 DEBUG(0,("open_sockets_smbd: No "
531 "sockets available to bind to.\n"));
535 /* Setup the main smbd so that we can get messages. Note that
536 do this after starting listening. This is needed as when in
537 clustered mode, ctdb won't allow us to start doing database
538 operations until it has gone thru a full startup, which
539 includes checking to see that smbd is listening. */
540 claim_connection(NULL,"",
541 FLAG_MSG_GENERAL|FLAG_MSG_SMBD|FLAG_MSG_DBWRAP);
543 /* Listen to messages */
545 messaging_register(smbd_messaging_context(), NULL,
546 MSG_SMB_SAM_SYNC, msg_sam_sync);
547 messaging_register(smbd_messaging_context(), NULL,
548 MSG_SHUTDOWN, msg_exit_server);
549 messaging_register(smbd_messaging_context(), NULL,
550 MSG_SMB_FILE_RENAME, msg_file_was_renamed);
551 messaging_register(smbd_messaging_context(), NULL,
552 MSG_SMB_CONF_UPDATED, smb_conf_updated);
553 messaging_register(smbd_messaging_context(), NULL,
554 MSG_SMB_STAT_CACHE_DELETE, smb_stat_cache_delete);
555 brl_register_msgs(smbd_messaging_context());
557 #ifdef CLUSTER_SUPPORT
558 if (lp_clustering()) {
559 ctdbd_register_reconfigure(messaging_ctdbd_connection());
564 messaging_register(smbd_messaging_context(), NULL,
565 MSG_SMB_INJECT_FAULT, msg_inject_fault);
568 /* now accept incoming connections - forking a new process
569 for each incoming connection */
570 DEBUG(2,("waiting for a connection\n"));
572 struct timeval now, idle_timeout;
576 /* Ensure we respond to PING and DEBUG messages from the main smbd. */
577 message_dispatch(smbd_messaging_context());
585 while ((pid = sys_waitpid(-1, &status, WNOHANG)) > 0) {
586 bool unclean_shutdown = False;
588 /* If the child terminated normally, assume
589 it was an unclean shutdown unless the
592 if (WIFEXITED(status)) {
593 unclean_shutdown = WEXITSTATUS(status);
595 /* If the child terminated due to a signal
596 we always assume it was unclean.
598 if (WIFSIGNALED(status)) {
599 unclean_shutdown = True;
601 remove_child_pid(pid, unclean_shutdown);
605 idle_timeout = timeval_zero();
607 memcpy((char *)&r_fds, (char *)&listen_set,
612 /* Kick off our mDNS registration. */
614 dns_register_smbd(&dns_reg, dns_port, &maxfd,
615 &r_fds, &idle_timeout);
618 event_add_to_select_args(smbd_event_context(), &now,
619 &r_fds, &w_fds, &idle_timeout,
622 num = sys_select(maxfd+1,&r_fds,&w_fds,NULL,
623 timeval_is_zero(&idle_timeout) ?
624 NULL : &idle_timeout);
626 if (num == -1 && errno == EINTR) {
628 exit_server_cleanly(NULL);
631 /* check for sighup processing */
632 if (reload_after_sighup) {
633 change_to_root_user();
634 DEBUG(1,("Reloading services after SIGHUP\n"));
635 reload_services(False);
636 reload_after_sighup = 0;
643 /* If the idle timeout fired and we don't have any connected
644 * users, exit gracefully. We should be running under a process
645 * controller that will restart us if necessry.
647 if (num == 0 && count_all_current_connections() == 0) {
648 exit_server_cleanly("idle timeout");
651 /* process pending nDNS responses */
652 if (dns_register_smbd_reply(dns_reg, &r_fds, &idle_timeout)) {
656 if (run_events(smbd_event_context(), num, &r_fds, &w_fds)) {
660 /* check if we need to reload services */
661 check_reload(time(NULL));
663 /* Find the sockets that are read-ready -
665 for( ; num > 0; num--) {
666 struct sockaddr addr;
667 socklen_t in_addrlen = sizeof(addr);
671 for(i = 0; i < num_sockets; i++) {
672 if(FD_ISSET(fd_listenset[i],&r_fds)) {
674 /* Clear this so we don't look
676 FD_CLR(fd_listenset[i],&r_fds);
681 smbd_set_server_fd(accept(s,&addr,&in_addrlen));
683 if (smbd_server_fd() == -1 && errno == EINTR)
686 if (smbd_server_fd() == -1) {
687 DEBUG(2,("open_sockets_smbd: accept: %s\n",
692 /* Ensure child is set to blocking mode */
693 set_blocking(smbd_server_fd(),True);
695 if (smbd_server_fd() != -1 && interactive)
698 if (allowable_number_of_smbd_processes() &&
699 smbd_server_fd() != -1 &&
700 ((child = sys_fork())==0)) {
701 char remaddr[INET6_ADDRSTRLEN];
705 /* Stop zombies, the parent explicitly handles
706 * them, counting worker smbds. */
709 /* close the listening socket(s) */
710 for(i = 0; i < num_sockets; i++)
711 close(fd_listenset[i]);
713 /* close our mDNS daemon handle */
714 dns_register_close(&dns_reg);
716 /* close our standard file
718 close_low_fds(False);
721 set_socket_options(smbd_server_fd(),"SO_KEEPALIVE");
722 set_socket_options(smbd_server_fd(),
723 lp_socket_options());
725 /* this is needed so that we get decent entries
726 in smbstatus for port 445 connects */
727 set_remote_machine_name(get_peer_addr(smbd_server_fd(),
732 if (!reinit_after_fork(
733 smbd_messaging_context(),
734 smbd_event_context(),
736 DEBUG(0,("reinit_after_fork() failed\n"));
737 smb_panic("reinit_after_fork() failed");
742 /* The parent doesn't need this socket */
743 close(smbd_server_fd());
745 /* Sun May 6 18:56:14 2001 ackley@cs.unm.edu:
746 Clear the closed fd info out of server_fd --
747 and more importantly, out of client_fd in
748 util_sock.c, to avoid a possible
749 getpeername failure if we reopen the logs
750 and use %I in the filename.
753 smbd_set_server_fd(-1);
756 add_child_pid(child);
759 /* Force parent to check log size after
760 * spawning child. Fix from
761 * klausr@ITAP.Physik.Uni-Stuttgart.De. The
762 * parent smbd will log to logserver.smb. It
763 * writes only two messages for each child
764 * started/finished. But each child writes,
765 * say, 50 messages also in logserver.smb,
766 * begining with the debug_count of the
767 * parent, before the child opens its own log
768 * file logserver.client. In a worst case
769 * scenario the size of logserver.smb would be
770 * checked after about 50*50=2500 messages
773 force_check_log_size();
778 /* NOTREACHED return True; */
781 /****************************************************************************
783 **************************************************************************/
784 void reload_printers(void)
787 int n_services = lp_numservices();
788 int pnum = lp_servicenumber(PRINTERS_NAME);
793 /* remove stale printers */
794 for (snum = 0; snum < n_services; snum++) {
795 /* avoid removing PRINTERS_NAME or non-autoloaded printers */
796 if (snum == pnum || !(lp_snum_ok(snum) && lp_print_ok(snum) &&
797 lp_autoloaded(snum)))
800 pname = lp_printername(snum);
801 if (!pcap_printername_ok(pname)) {
802 DEBUG(3, ("removing stale printer %s\n", pname));
804 if (is_printer_published(NULL, snum, NULL))
805 nt_printer_publish(NULL, snum, SPOOL_DS_UNPUBLISH);
806 del_a_printer(pname);
807 lp_killservice(snum);
814 /****************************************************************************
815 Reload the services file.
816 **************************************************************************/
818 bool reload_services(bool test)
823 char *fname = lp_configfile();
824 if (file_exist(fname) &&
825 !strcsequal(fname, get_dyn_CONFIGFILE())) {
826 set_dyn_CONFIGFILE(fname);
833 if (test && !lp_file_list_changed())
836 lp_killunused(conn_snum_used);
838 ret = lp_load(get_dyn_CONFIGFILE(), False, False, True, True);
842 /* perhaps the config filename is now set */
844 reload_services(True);
850 if (smbd_server_fd() != -1) {
851 set_socket_options(smbd_server_fd(),"SO_KEEPALIVE");
852 set_socket_options(smbd_server_fd(), lp_socket_options());
855 mangle_reset_cache();
858 /* this forces service parameters to be flushed */
859 set_current_service(NULL,0,True);
864 /****************************************************************************
866 ****************************************************************************/
868 /* Reasons for shutting down a server process. */
869 enum server_exit_reason { SERVER_EXIT_NORMAL, SERVER_EXIT_ABNORMAL };
871 static void exit_server_common(enum server_exit_reason how,
872 const char *const reason) _NORETURN_;
874 static void exit_server_common(enum server_exit_reason how,
875 const char *const reason)
881 exit_firsttime = false;
883 change_to_root_user();
885 if (negprot_global_auth_context) {
886 (negprot_global_auth_context->free)(&negprot_global_auth_context);
889 had_open_conn = conn_close_all();
891 invalidate_all_vuids();
893 /* 3 second timeout. */
894 print_notify_send_messages(smbd_messaging_context(), 3);
896 /* delete our entry in the connections database. */
897 yield_connection(NULL,"");
899 respond_to_all_remaining_local_messages();
902 if (dcelogin_atmost_once) {
908 /* Destroy Samba DMAPI session only if we are master smbd process */
910 if (!dmapi_destroy_session()) {
911 DEBUG(0,("Unable to close Samba DMAPI session\n"));
919 if (how != SERVER_EXIT_NORMAL) {
920 int oldlevel = DEBUGLEVEL;
925 DEBUG(0,("Abnormal server exit: %s\n",
926 reason ? reason : "no explanation provided"));
931 DEBUGLEVEL = oldlevel;
935 DEBUG(3,("Server exit (%s)\n",
936 (reason ? reason : "normal exit")));
939 /* if we had any open SMB connections when we exited then we
940 need to tell the parent smbd so that it can trigger a retry
941 of any locks we may have been holding or open files we were
950 void exit_server(const char *const explanation)
952 exit_server_common(SERVER_EXIT_ABNORMAL, explanation);
955 void exit_server_cleanly(const char *const explanation)
957 exit_server_common(SERVER_EXIT_NORMAL, explanation);
960 void exit_server_fault(void)
962 exit_server("critical server fault");
966 /****************************************************************************
967 received when we should release a specific IP
968 ****************************************************************************/
969 static void release_ip(const char *ip, void *priv)
971 char addr[INET6_ADDRSTRLEN];
973 if (strcmp(client_socket_addr(get_client_fd(),addr,sizeof(addr)), ip) == 0) {
974 /* we can't afford to do a clean exit - that involves
975 database writes, which would potentially mean we
976 are still running after the failover has finished -
977 we have to get rid of this process ID straight
979 DEBUG(0,("Got release IP message for our IP %s - exiting immediately\n",
981 /* note we must exit with non-zero status so the unclean handler gets
982 called in the parent, so that the brl database is tickled */
987 static void msg_release_ip(struct messaging_context *msg_ctx, void *private_data,
988 uint32_t msg_type, struct server_id server_id, DATA_BLOB *data)
990 release_ip((char *)data->data, NULL);
993 /****************************************************************************
994 Initialise connect, service and file structs.
995 ****************************************************************************/
997 static bool init_structs(void )
1000 * Set the machine NETBIOS name if not already
1001 * set from the config file.
1012 init_rpc_pipe_hnd();
1016 if (!secrets_init())
1023 * Send keepalive packets to our client
1025 static bool keepalive_fn(const struct timeval *now, void *private_data)
1027 if (!send_keepalive(smbd_server_fd())) {
1028 DEBUG( 2, ( "Keepalive failed - exiting.\n" ) );
1035 * Do the recurring check if we're idle
1037 static bool deadtime_fn(const struct timeval *now, void *private_data)
1039 if ((conn_num_open() == 0)
1040 || (conn_idle_all(now->tv_sec))) {
1041 DEBUG( 2, ( "Closing idle connection\n" ) );
1042 messaging_send(smbd_messaging_context(), procid_self(),
1043 MSG_SHUTDOWN, &data_blob_null);
1051 * Do the recurring log file and smb.conf reload checks.
1054 static bool housekeeping_fn(const struct timeval *now, void *private_data)
1056 change_to_root_user();
1058 /* update printer queue caches if necessary */
1059 update_monitored_printq_cache();
1061 /* check if we need to reload services */
1062 check_reload(time(NULL));
1064 /* Change machine password if neccessary. */
1065 attempt_machine_password_change();
1068 * Force a log file check.
1070 force_check_log_size();
1075 /****************************************************************************
1077 ****************************************************************************/
1079 /* Declare prototype for build_options() to avoid having to run it through
1080 mkproto.h. Mixing $(builddir) and $(srcdir) source files in the current
1081 prototype generation system is too complicated. */
1083 extern void build_options(bool screen);
1085 int main(int argc,const char *argv[])
1087 /* shall I run as a daemon */
1088 bool is_daemon = false;
1089 bool interactive = false;
1091 bool no_process_group = false;
1092 bool log_stdout = false;
1094 char *profile_level = NULL;
1097 bool print_build_options = False;
1102 OPT_NO_PROCESS_GROUP,
1105 struct poptOption long_options[] = {
1107 {"daemon", 'D', POPT_ARG_NONE, NULL, OPT_DAEMON, "Become a daemon (default)" },
1108 {"interactive", 'i', POPT_ARG_NONE, NULL, OPT_INTERACTIVE, "Run interactive (not a daemon)"},
1109 {"foreground", 'F', POPT_ARG_NONE, NULL, OPT_FORK, "Run daemon in foreground (for daemontools, etc.)" },
1110 {"no-process-group", '\0', POPT_ARG_NONE, NULL, OPT_NO_PROCESS_GROUP, "Don't create a new process group" },
1111 {"log-stdout", 'S', POPT_ARG_NONE, NULL, OPT_LOG_STDOUT, "Log to stdout" },
1112 {"build-options", 'b', POPT_ARG_NONE, NULL, 'b', "Print build options" },
1113 {"port", 'p', POPT_ARG_STRING, &ports, 0, "Listen on the specified ports"},
1114 {"profiling-level", 'P', POPT_ARG_STRING, &profile_level, 0, "Set profiling level","PROFILE_LEVEL"},
1116 POPT_COMMON_DYNCONFIG
1119 TALLOC_CTX *frame = talloc_stackframe(); /* Setup tos. */
1121 smbd_init_globals();
1125 #ifdef HAVE_SET_AUTH_PARAMETERS
1126 set_auth_parameters(argc,argv);
1129 pc = poptGetContext("smbd", argc, argv, long_options, 0);
1130 while((opt = poptGetNextOpt(pc)) != -1) {
1135 case OPT_INTERACTIVE:
1141 case OPT_NO_PROCESS_GROUP:
1142 no_process_group = true;
1144 case OPT_LOG_STDOUT:
1148 print_build_options = True;
1151 d_fprintf(stderr, "\nInvalid option %s: %s\n\n",
1152 poptBadOption(pc, 0), poptStrerror(opt));
1153 poptPrintUsage(pc, stderr, 0);
1157 poptFreeContext(pc);
1164 setup_logging(argv[0],log_stdout);
1166 if (print_build_options) {
1167 build_options(True); /* Display output to screen as well as debug */
1174 /* needed for SecureWare on SCO */
1180 set_remote_machine_name("smbd", False);
1182 if (interactive && (DEBUGLEVEL >= 9)) {
1183 talloc_enable_leak_report();
1186 if (log_stdout && Fork) {
1187 DEBUG(0,("ERROR: Can't log to stdout (-S) unless daemon is in foreground (-F) or interactive (-i)\n"));
1191 /* we want to re-seed early to prevent time delays causing
1192 client problems at a later date. (tridge) */
1193 generate_random_buffer(NULL, 0);
1195 /* make absolutely sure we run as root - to handle cases where people
1196 are crazy enough to have it setuid */
1198 gain_root_privilege();
1199 gain_root_group_privilege();
1201 fault_setup((void (*)(void *))exit_server_fault);
1202 dump_core_setup("smbd");
1204 CatchSignal(SIGTERM , SIGNAL_CAST sig_term);
1205 CatchSignal(SIGHUP,SIGNAL_CAST sig_hup);
1207 /* we are never interested in SIGPIPE */
1208 BlockSignals(True,SIGPIPE);
1211 /* we are never interested in SIGFPE */
1212 BlockSignals(True,SIGFPE);
1215 #if defined(SIGUSR2)
1216 /* We are no longer interested in USR2 */
1217 BlockSignals(True,SIGUSR2);
1220 /* POSIX demands that signals are inherited. If the invoking process has
1221 * these signals masked, we will have problems, as we won't recieve them. */
1222 BlockSignals(False, SIGHUP);
1223 BlockSignals(False, SIGUSR1);
1224 BlockSignals(False, SIGTERM);
1226 /* we want total control over the permissions on created files,
1227 so set our umask to 0 */
1234 DEBUG(0,("smbd version %s started.\n", SAMBA_VERSION_STRING));
1235 DEBUGADD(0,("%s\n", COPYRIGHT_STARTUP_MESSAGE));
1237 DEBUG(2,("uid=%d gid=%d euid=%d egid=%d\n",
1238 (int)getuid(),(int)getgid(),(int)geteuid(),(int)getegid()));
1240 /* Output the build options to the debug log */
1241 build_options(False);
1243 if (sizeof(uint16) < 2 || sizeof(uint32) < 4) {
1244 DEBUG(0,("ERROR: Samba is not configured correctly for the word size on your machine\n"));
1248 if (!lp_load_initial_only(get_dyn_CONFIGFILE())) {
1249 DEBUG(0, ("error opening config file\n"));
1253 if (smbd_messaging_context() == NULL)
1256 if (!reload_services(False))
1262 if (!profile_setup(smbd_messaging_context(), False)) {
1263 DEBUG(0,("ERROR: failed to setup profiling\n"));
1266 if (profile_level != NULL) {
1267 int pl = atoi(profile_level);
1268 struct server_id src;
1270 DEBUG(1, ("setting profiling level: %s\n",profile_level));
1272 set_profile_level(pl, src);
1276 DEBUG(3,( "loaded services\n"));
1278 if (!is_daemon && !is_a_socket(0)) {
1280 DEBUG(0,("standard input is not a socket, assuming -D option\n"));
1283 * Setting is_daemon here prevents us from eventually calling
1284 * the open_sockets_inetd()
1290 if (is_daemon && !interactive) {
1291 DEBUG( 3, ( "Becoming a daemon.\n" ) );
1292 become_daemon(Fork, no_process_group);
1297 * If we're interactive we want to set our own process group for
1298 * signal management.
1300 if (interactive && !no_process_group)
1301 setpgid( (pid_t)0, (pid_t)0);
1304 if (!directory_exist(lp_lockdir()))
1305 mkdir(lp_lockdir(), 0755);
1308 pidfile_create("smbd");
1310 if (!reinit_after_fork(smbd_messaging_context(),
1311 smbd_event_context(), false)) {
1312 DEBUG(0,("reinit_after_fork() failed\n"));
1316 /* Setup all the TDB's - including CLEAR_IF_FIRST tdb's. */
1318 if (smbd_memcache() == NULL) {
1322 memcache_set_global(smbd_memcache());
1324 /* Initialise the password backed before the global_sam_sid
1325 to ensure that we fetch from ldap before we make a domain sid up */
1327 if(!initialize_password_db(False, smbd_event_context()))
1330 if (!secrets_init()) {
1331 DEBUG(0, ("ERROR: smbd can not open secrets.tdb\n"));
1335 if(!get_global_sam_sid()) {
1336 DEBUG(0,("ERROR: Samba cannot create a SAM SID.\n"));
1340 if (!session_init())
1343 if (!connections_init(True))
1346 if (!locking_init())
1351 if (!W_ERROR_IS_OK(registry_init_full()))
1355 if (!init_svcctl_db())
1359 if (!print_backend_init(smbd_messaging_context()))
1362 if (!init_guest_info()) {
1363 DEBUG(0,("ERROR: failed to setup guest info.\n"));
1367 /* only start the background queue daemon if we are
1368 running as a daemon -- bad things will happen if
1369 smbd is launched via inetd and we fork a copy of
1372 if (is_daemon && !interactive
1373 && lp_parm_bool(-1, "smbd", "backgroundqueue", true)) {
1374 start_background_queue();
1377 if (!open_sockets_smbd(is_daemon, interactive, ports))
1381 * everything after this point is run after the fork()
1388 /* Possibly reload the services file. Only worth doing in
1389 * daemon mode. In inetd mode, we know we only just loaded this.
1392 reload_services(True);
1395 if (!init_account_policy()) {
1396 DEBUG(0,("Could not open account policy tdb.\n"));
1400 if (*lp_rootdir()) {
1401 if (chroot(lp_rootdir()) == 0)
1402 DEBUG(2,("Changed root to %s\n", lp_rootdir()));
1406 if (!init_oplocks(smbd_messaging_context()))
1409 /* Setup aio signal handler. */
1410 initialize_async_io_handler();
1412 /* register our message handlers */
1413 messaging_register(smbd_messaging_context(), NULL,
1414 MSG_SMB_FORCE_TDIS, msg_force_tdis);
1415 messaging_register(smbd_messaging_context(), NULL,
1416 MSG_SMB_RELEASE_IP, msg_release_ip);
1417 messaging_register(smbd_messaging_context(), NULL,
1418 MSG_SMB_CLOSE_FILE, msg_close_file);
1420 if ((lp_keepalive() != 0)
1421 && !(event_add_idle(smbd_event_context(), NULL,
1422 timeval_set(lp_keepalive(), 0),
1423 "keepalive", keepalive_fn,
1425 DEBUG(0, ("Could not add keepalive event\n"));
1429 if (!(event_add_idle(smbd_event_context(), NULL,
1430 timeval_set(IDLE_CLOSED_TIMEOUT, 0),
1431 "deadtime", deadtime_fn, NULL))) {
1432 DEBUG(0, ("Could not add deadtime event\n"));
1436 if (!(event_add_idle(smbd_event_context(), NULL,
1437 timeval_set(SMBD_SELECT_TIMEOUT, 0),
1438 "housekeeping", housekeeping_fn, NULL))) {
1439 DEBUG(0, ("Could not add housekeeping event\n"));
1443 #ifdef CLUSTER_SUPPORT
1445 if (lp_clustering()) {
1447 * We need to tell ctdb about our client's TCP
1448 * connection, so that for failover ctdbd can send
1449 * tickle acks, triggering a reconnection by the
1453 struct sockaddr_storage srv, clnt;
1455 if (client_get_tcp_info(&srv, &clnt) == 0) {
1459 status = ctdbd_register_ips(
1460 messaging_ctdbd_connection(),
1461 (struct sockaddr *)&srv,
1462 (struct sockaddr *)&clnt,
1465 if (!NT_STATUS_IS_OK(status)) {
1466 DEBUG(0, ("ctdbd_register_ips failed: %s\n",
1467 nt_errstr(status)));
1471 DEBUG(0,("Unable to get tcp info for "
1472 "CTDB_CONTROL_TCP_CLIENT: %s\n",
1483 namecache_shutdown();
1485 exit_server_cleanly(NULL);