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 struct event_context
*smbd_event_context(void)
64 static struct event_context
*ctx
;
66 if (!ctx
&& !(ctx
= event_context_init(NULL
))) {
67 smb_panic("Could not init smbd event context");
72 struct messaging_context
*smbd_messaging_context(void)
74 static struct messaging_context
*ctx
;
76 if (!ctx
&& !(ctx
= messaging_init(NULL
, server_id_self(),
77 smbd_event_context()))) {
78 smb_panic("Could not init smbd messaging context");
83 struct memcache
*smbd_memcache(void)
85 static struct memcache
*cache
;
88 && !(cache
= memcache_init(NULL
,
89 lp_max_stat_cache_size()*1024))) {
91 smb_panic("Could not init smbd memcache");
96 /*******************************************************************
97 What to do when smb.conf is updated.
98 ********************************************************************/
100 static void smb_conf_updated(struct messaging_context
*msg
,
103 struct server_id server_id
,
106 DEBUG(10,("smb_conf_updated: Got message saying smb.conf was "
107 "updated. Reloading.\n"));
108 reload_services(False
);
112 /*******************************************************************
113 Delete a statcache entry.
114 ********************************************************************/
116 static void smb_stat_cache_delete(struct messaging_context
*msg
,
119 struct server_id server_id
,
122 const char *name
= (const char *)data
->data
;
123 DEBUG(10,("smb_stat_cache_delete: delete name %s\n", name
));
124 stat_cache_delete(name
);
127 /****************************************************************************
129 ****************************************************************************/
131 static void sig_term(void)
134 sys_select_signal(SIGTERM
);
137 /****************************************************************************
139 ****************************************************************************/
141 static void sig_hup(int sig
)
143 reload_after_sighup
= 1;
144 sys_select_signal(SIGHUP
);
147 /****************************************************************************
149 ****************************************************************************/
150 static void sig_cld(int sig
)
153 sys_select_signal(SIGCLD
);
156 /****************************************************************************
157 Send a SIGTERM to our process group.
158 *****************************************************************************/
160 static void killkids(void)
162 if(am_parent
) kill(0,SIGTERM
);
165 /****************************************************************************
166 Process a sam sync message - not sure whether to do this here or
168 ****************************************************************************/
170 static void msg_sam_sync(struct messaging_context
*msg
,
173 struct server_id server_id
,
176 DEBUG(10, ("** sam sync message received, ignoring\n"));
180 /****************************************************************************
181 Open the socket communication - inetd.
182 ****************************************************************************/
184 static bool open_sockets_inetd(void)
186 /* Started from inetd. fd 0 is the socket. */
187 /* We will abort gracefully when the client or remote system
189 smbd_set_server_fd(dup(0));
191 /* close our standard file descriptors */
192 close_low_fds(False
); /* Don't close stderr */
194 set_socket_options(smbd_server_fd(),"SO_KEEPALIVE");
195 set_socket_options(smbd_server_fd(), lp_socket_options());
200 static void msg_exit_server(struct messaging_context
*msg
,
203 struct server_id server_id
,
206 DEBUG(3, ("got a SHUTDOWN message\n"));
207 exit_server_cleanly(NULL
);
211 static void msg_inject_fault(struct messaging_context
*msg
,
214 struct server_id src
,
219 if (data
->length
!= sizeof(sig
)) {
221 DEBUG(0, ("Process %s sent bogus signal injection request\n",
222 procid_str_static(&src
)));
226 sig
= *(int *)data
->data
;
228 exit_server("internal error injected");
233 DEBUG(0, ("Process %s requested injection of signal %d (%s)\n",
234 procid_str_static(&src
), sig
, strsignal(sig
)));
236 DEBUG(0, ("Process %s requested injection of signal %d\n",
237 procid_str_static(&src
), sig
));
240 kill(sys_getpid(), sig
);
242 #endif /* DEVELOPER */
245 struct child_pid
*prev
, *next
;
249 static struct child_pid
*children
;
250 static int num_children
;
252 static void add_child_pid(pid_t pid
)
254 struct child_pid
*child
;
256 if (lp_max_smbd_processes() == 0) {
257 /* Don't bother with the child list if we don't care anyway */
261 child
= SMB_MALLOC_P(struct child_pid
);
263 DEBUG(0, ("Could not add child struct -- malloc failed\n"));
267 DLIST_ADD(children
, child
);
271 static void remove_child_pid(pid_t pid
, bool unclean_shutdown
)
273 struct child_pid
*child
;
275 if (unclean_shutdown
) {
276 /* a child terminated uncleanly so tickle all processes to see
277 if they can grab any of the pending locks
279 messaging_send_buf(smbd_messaging_context(), procid_self(),
280 MSG_SMB_BRL_VALIDATE
, NULL
, 0);
281 message_send_all(smbd_messaging_context(),
282 MSG_SMB_UNLOCK
, NULL
, 0, NULL
);
285 if (lp_max_smbd_processes() == 0) {
286 /* Don't bother with the child list if we don't care anyway */
290 for (child
= children
; child
!= NULL
; child
= child
->next
) {
291 if (child
->pid
== pid
) {
292 struct child_pid
*tmp
= child
;
293 DLIST_REMOVE(children
, child
);
300 DEBUG(0, ("Could not find child %d -- ignoring\n", (int)pid
));
303 /****************************************************************************
304 Have we reached the process limit ?
305 ****************************************************************************/
307 static bool allowable_number_of_smbd_processes(void)
309 int max_processes
= lp_max_smbd_processes();
314 return num_children
< max_processes
;
317 /****************************************************************************
318 Open the socket communication.
319 ****************************************************************************/
321 static bool open_sockets_smbd(bool is_daemon
, bool interactive
, const char *smb_ports
)
323 int num_interfaces
= iface_count();
325 int fd_listenset
[FD_SETSIZE
];
331 struct dns_reg_state
* dns_reg
= NULL
;
332 unsigned dns_port
= 0;
335 return open_sockets_inetd();
340 static int atexit_set
;
341 if(atexit_set
== 0) {
349 CatchSignal(SIGCLD
, sig_cld
);
351 FD_ZERO(&listen_set
);
353 /* use a reasonable default set of ports - listing on 445 and 139 */
355 ports
= lp_smb_ports();
356 if (!ports
|| !*ports
) {
357 ports
= smb_xstrdup(SMB_PORTS
);
359 ports
= smb_xstrdup(ports
);
362 ports
= smb_xstrdup(smb_ports
);
365 if (lp_interfaces() && lp_bind_interfaces_only()) {
366 /* We have been given an interfaces line, and been
367 told to only bind to those interfaces. Create a
368 socket per interface and bind to only these.
371 /* Now open a listen socket for each of the
373 for(i
= 0; i
< num_interfaces
; i
++) {
374 TALLOC_CTX
*frame
= NULL
;
375 const struct sockaddr_storage
*ifss
=
376 iface_n_sockaddr_storage(i
);
381 DEBUG(0,("open_sockets_smbd: "
382 "interface %d has NULL IP address !\n",
387 frame
= talloc_stackframe();
389 next_token_talloc(frame
,&ptr
, &tok
, " \t,");) {
390 unsigned port
= atoi(tok
);
391 if (port
== 0 || port
> 0xffff) {
395 /* Keep the first port for mDNS service
402 s
= fd_listenset
[num_sockets
] =
403 open_socket_in(SOCK_STREAM
,
405 num_sockets
== 0 ? 0 : 2,
412 /* ready to listen */
413 set_socket_options(s
,"SO_KEEPALIVE");
414 set_socket_options(s
,lp_socket_options());
416 /* Set server socket to
417 * non-blocking for the accept. */
418 set_blocking(s
,False
);
420 if (listen(s
, SMBD_LISTEN_BACKLOG
) == -1) {
421 DEBUG(0,("open_sockets_smbd: listen: "
422 "%s\n", strerror(errno
)));
427 FD_SET(s
,&listen_set
);
428 maxfd
= MAX( maxfd
, s
);
431 if (num_sockets
>= FD_SETSIZE
) {
432 DEBUG(0,("open_sockets_smbd: Too "
433 "many sockets to bind to\n"));
441 /* Just bind to 0.0.0.0 - accept connections
444 TALLOC_CTX
*frame
= talloc_stackframe();
447 const char *sock_addr
= lp_socket_address();
449 const char *sock_ptr
;
451 if (strequal(sock_addr
, "0.0.0.0") ||
452 strequal(sock_addr
, "::")) {
454 sock_addr
= "::,0.0.0.0";
456 sock_addr
= "0.0.0.0";
460 for (sock_ptr
=sock_addr
;
461 next_token_talloc(frame
, &sock_ptr
, &sock_tok
, " \t,"); ) {
462 for (ptr
=ports
; next_token_talloc(frame
, &ptr
, &tok
, " \t,"); ) {
463 struct sockaddr_storage ss
;
465 unsigned port
= atoi(tok
);
466 if (port
== 0 || port
> 0xffff) {
470 /* Keep the first port for mDNS service
477 /* open an incoming socket */
478 if (!interpret_string_addr(&ss
, sock_tok
,
479 AI_NUMERICHOST
|AI_PASSIVE
)) {
483 s
= open_socket_in(SOCK_STREAM
,
485 num_sockets
== 0 ? 0 : 2,
492 /* ready to listen */
493 set_socket_options(s
,"SO_KEEPALIVE");
494 set_socket_options(s
,lp_socket_options());
496 /* Set server socket to non-blocking
498 set_blocking(s
,False
);
500 if (listen(s
, SMBD_LISTEN_BACKLOG
) == -1) {
501 DEBUG(0,("open_sockets_smbd: "
509 fd_listenset
[num_sockets
] = s
;
510 FD_SET(s
,&listen_set
);
511 maxfd
= MAX( maxfd
, s
);
515 if (num_sockets
>= FD_SETSIZE
) {
516 DEBUG(0,("open_sockets_smbd: Too "
517 "many sockets to bind to\n"));
528 if (num_sockets
== 0) {
529 DEBUG(0,("open_sockets_smbd: No "
530 "sockets available to bind to.\n"));
534 /* Setup the main smbd so that we can get messages. Note that
535 do this after starting listening. This is needed as when in
536 clustered mode, ctdb won't allow us to start doing database
537 operations until it has gone thru a full startup, which
538 includes checking to see that smbd is listening. */
539 claim_connection(NULL
,"",FLAG_MSG_GENERAL
|FLAG_MSG_SMBD
);
541 /* Listen to messages */
543 messaging_register(smbd_messaging_context(), NULL
,
544 MSG_SMB_SAM_SYNC
, msg_sam_sync
);
545 messaging_register(smbd_messaging_context(), NULL
,
546 MSG_SHUTDOWN
, msg_exit_server
);
547 messaging_register(smbd_messaging_context(), NULL
,
548 MSG_SMB_FILE_RENAME
, msg_file_was_renamed
);
549 messaging_register(smbd_messaging_context(), NULL
,
550 MSG_SMB_CONF_UPDATED
, smb_conf_updated
);
551 messaging_register(smbd_messaging_context(), NULL
,
552 MSG_SMB_STAT_CACHE_DELETE
, smb_stat_cache_delete
);
553 brl_register_msgs(smbd_messaging_context());
556 messaging_register(smbd_messaging_context(), NULL
,
557 MSG_SMB_INJECT_FAULT
, msg_inject_fault
);
560 /* now accept incoming connections - forking a new process
561 for each incoming connection */
562 DEBUG(2,("waiting for a connection\n"));
564 struct timeval now
, idle_timeout
;
568 /* Ensure we respond to PING and DEBUG messages from the main smbd. */
569 message_dispatch(smbd_messaging_context());
577 while ((pid
= sys_waitpid(-1, &status
, WNOHANG
)) > 0) {
578 bool unclean_shutdown
= False
;
580 /* If the child terminated normally, assume
581 it was an unclean shutdown unless the
584 if (WIFEXITED(status
)) {
585 unclean_shutdown
= WEXITSTATUS(status
);
587 /* If the child terminated due to a signal
588 we always assume it was unclean.
590 if (WIFSIGNALED(status
)) {
591 unclean_shutdown
= True
;
593 remove_child_pid(pid
, unclean_shutdown
);
597 idle_timeout
= timeval_zero();
599 memcpy((char *)&r_fds
, (char *)&listen_set
,
604 /* Kick off our mDNS registration. */
606 dns_register_smbd(&dns_reg
, dns_port
, &maxfd
,
607 &r_fds
, &idle_timeout
);
610 event_add_to_select_args(smbd_event_context(), &now
,
611 &r_fds
, &w_fds
, &idle_timeout
,
614 num
= sys_select(maxfd
+1,&r_fds
,&w_fds
,NULL
,
615 timeval_is_zero(&idle_timeout
) ?
616 NULL
: &idle_timeout
);
618 if (num
== -1 && errno
== EINTR
) {
620 exit_server_cleanly(NULL
);
623 /* check for sighup processing */
624 if (reload_after_sighup
) {
625 change_to_root_user();
626 DEBUG(1,("Reloading services after SIGHUP\n"));
627 reload_services(False
);
628 reload_after_sighup
= 0;
635 /* If the idle timeout fired and we don't have any connected
636 * users, exit gracefully. We should be running under a process
637 * controller that will restart us if necessry.
639 if (num
== 0 && count_all_current_connections() == 0) {
640 exit_server_cleanly("idle timeout");
643 /* process pending nDNS responses */
644 if (dns_register_smbd_reply(dns_reg
, &r_fds
, &idle_timeout
)) {
648 if (run_events(smbd_event_context(), num
, &r_fds
, &w_fds
)) {
652 /* check if we need to reload services */
653 check_reload(time(NULL
));
655 /* Find the sockets that are read-ready -
657 for( ; num
> 0; num
--) {
658 struct sockaddr addr
;
659 socklen_t in_addrlen
= sizeof(addr
);
663 for(i
= 0; i
< num_sockets
; i
++) {
664 if(FD_ISSET(fd_listenset
[i
],&r_fds
)) {
666 /* Clear this so we don't look
668 FD_CLR(fd_listenset
[i
],&r_fds
);
673 smbd_set_server_fd(accept(s
,&addr
,&in_addrlen
));
675 if (smbd_server_fd() == -1 && errno
== EINTR
)
678 if (smbd_server_fd() == -1) {
679 DEBUG(0,("open_sockets_smbd: accept: %s\n",
684 /* Ensure child is set to blocking mode */
685 set_blocking(smbd_server_fd(),True
);
687 if (smbd_server_fd() != -1 && interactive
)
690 if (allowable_number_of_smbd_processes() &&
691 smbd_server_fd() != -1 &&
692 ((child
= sys_fork())==0)) {
693 char remaddr
[INET6_ADDRSTRLEN
];
697 /* Stop zombies, the parent explicitly handles
698 * them, counting worker smbds. */
701 /* close the listening socket(s) */
702 for(i
= 0; i
< num_sockets
; i
++)
703 close(fd_listenset
[i
]);
705 /* close our mDNS daemon handle */
706 dns_register_close(&dns_reg
);
708 /* close our standard file
710 close_low_fds(False
);
713 set_socket_options(smbd_server_fd(),"SO_KEEPALIVE");
714 set_socket_options(smbd_server_fd(),
715 lp_socket_options());
717 /* this is needed so that we get decent entries
718 in smbstatus for port 445 connects */
719 set_remote_machine_name(get_peer_addr(smbd_server_fd(),
724 /* Reset the state of the random
725 * number generation system, so
726 * children do not get the same random
727 * numbers as each other */
729 set_need_random_reseed();
730 /* tdb needs special fork handling - remove
731 * CLEAR_IF_FIRST flags */
732 if (tdb_reopen_all(1) == -1) {
733 DEBUG(0,("tdb_reopen_all failed.\n"));
734 smb_panic("tdb_reopen_all failed");
739 /* The parent doesn't need this socket */
740 close(smbd_server_fd());
742 /* Sun May 6 18:56:14 2001 ackley@cs.unm.edu:
743 Clear the closed fd info out of server_fd --
744 and more importantly, out of client_fd in
745 util_sock.c, to avoid a possible
746 getpeername failure if we reopen the logs
747 and use %I in the filename.
750 smbd_set_server_fd(-1);
753 add_child_pid(child
);
756 /* Force parent to check log size after
757 * spawning child. Fix from
758 * klausr@ITAP.Physik.Uni-Stuttgart.De. The
759 * parent smbd will log to logserver.smb. It
760 * writes only two messages for each child
761 * started/finished. But each child writes,
762 * say, 50 messages also in logserver.smb,
763 * begining with the debug_count of the
764 * parent, before the child opens its own log
765 * file logserver.client. In a worst case
766 * scenario the size of logserver.smb would be
767 * checked after about 50*50=2500 messages
770 force_check_log_size();
775 /* NOTREACHED return True; */
778 /****************************************************************************
780 **************************************************************************/
781 void reload_printers(void)
784 int n_services
= lp_numservices();
785 int pnum
= lp_servicenumber(PRINTERS_NAME
);
790 /* remove stale printers */
791 for (snum
= 0; snum
< n_services
; snum
++) {
792 /* avoid removing PRINTERS_NAME or non-autoloaded printers */
793 if (snum
== pnum
|| !(lp_snum_ok(snum
) && lp_print_ok(snum
) &&
794 lp_autoloaded(snum
)))
797 pname
= lp_printername(snum
);
798 if (!pcap_printername_ok(pname
)) {
799 DEBUG(3, ("removing stale printer %s\n", pname
));
801 if (is_printer_published(NULL
, snum
, NULL
))
802 nt_printer_publish(NULL
, snum
, SPOOL_DS_UNPUBLISH
);
803 del_a_printer(pname
);
804 lp_killservice(snum
);
811 /****************************************************************************
812 Reload the services file.
813 **************************************************************************/
815 bool reload_services(bool test
)
820 char *fname
= lp_configfile();
821 if (file_exist(fname
, NULL
) &&
822 !strcsequal(fname
, get_dyn_CONFIGFILE())) {
823 set_dyn_CONFIGFILE(fname
);
830 if (test
&& !lp_file_list_changed())
833 lp_killunused(conn_snum_used
);
835 ret
= lp_load(get_dyn_CONFIGFILE(), False
, False
, True
, True
);
839 /* perhaps the config filename is now set */
841 reload_services(True
);
847 if (smbd_server_fd() != -1) {
848 set_socket_options(smbd_server_fd(),"SO_KEEPALIVE");
849 set_socket_options(smbd_server_fd(), lp_socket_options());
852 mangle_reset_cache();
855 /* this forces service parameters to be flushed */
856 set_current_service(NULL
,0,True
);
861 /****************************************************************************
863 ****************************************************************************/
865 /* Reasons for shutting down a server process. */
866 enum server_exit_reason
{ SERVER_EXIT_NORMAL
, SERVER_EXIT_ABNORMAL
};
868 static void exit_server_common(enum server_exit_reason how
,
869 const char *const reason
) NORETURN_ATTRIBUTE
;
871 static void exit_server_common(enum server_exit_reason how
,
872 const char *const reason
)
874 static int firsttime
=1;
880 change_to_root_user();
882 if (negprot_global_auth_context
) {
883 (negprot_global_auth_context
->free
)(&negprot_global_auth_context
);
888 invalidate_all_vuids();
890 /* 3 second timeout. */
891 print_notify_send_messages(smbd_messaging_context(), 3);
893 /* delete our entry in the connections database. */
894 yield_connection(NULL
,"");
896 respond_to_all_remaining_local_messages();
899 if (dcelogin_atmost_once
) {
907 if (how
!= SERVER_EXIT_NORMAL
) {
908 int oldlevel
= DEBUGLEVEL
;
913 DEBUG(0,("Abnormal server exit: %s\n",
914 reason
? reason
: "no explanation provided"));
919 DEBUGLEVEL
= oldlevel
;
923 DEBUG(3,("Server exit (%s)\n",
924 (reason
? reason
: "normal exit")));
930 void exit_server(const char *const explanation
)
932 exit_server_common(SERVER_EXIT_ABNORMAL
, explanation
);
935 void exit_server_cleanly(const char *const explanation
)
937 exit_server_common(SERVER_EXIT_NORMAL
, explanation
);
940 void exit_server_fault(void)
942 exit_server("critical server fault");
946 /****************************************************************************
947 received when we should release a specific IP
948 ****************************************************************************/
949 static void msg_release_ip(struct messaging_context
*msg_ctx
, void *private_data
,
950 uint32_t msg_type
, struct server_id server_id
, DATA_BLOB
*data
)
952 const char *ip
= (const char *)data
->data
;
953 char addr
[INET6_ADDRSTRLEN
];
955 if (strcmp(client_socket_addr(get_client_fd(),addr
,sizeof(addr
)), ip
) == 0) {
956 /* we can't afford to do a clean exit - that involves
957 database writes, which would potentially mean we
958 are still running after the failover has finished -
959 we have to get rid of this process ID straight
961 DEBUG(0,("Got release IP message for our IP %s - exiting immediately\n",
968 /****************************************************************************
969 Initialise connect, service and file structs.
970 ****************************************************************************/
972 static bool init_structs(void )
975 * Set the machine NETBIOS name if not already
976 * set from the config file.
997 * Send keepalive packets to our client
999 static bool keepalive_fn(const struct timeval
*now
, void *private_data
)
1001 if (!send_keepalive(smbd_server_fd())) {
1002 DEBUG( 2, ( "Keepalive failed - exiting.\n" ) );
1009 * Do the recurring check if we're idle
1011 static bool deadtime_fn(const struct timeval
*now
, void *private_data
)
1013 if ((conn_num_open() == 0)
1014 || (conn_idle_all(now
->tv_sec
))) {
1015 DEBUG( 2, ( "Closing idle connection\n" ) );
1016 messaging_send(smbd_messaging_context(), procid_self(),
1017 MSG_SHUTDOWN
, &data_blob_null
);
1025 /****************************************************************************
1027 ****************************************************************************/
1029 /* Declare prototype for build_options() to avoid having to run it through
1030 mkproto.h. Mixing $(builddir) and $(srcdir) source files in the current
1031 prototype generation system is too complicated. */
1033 extern void build_options(bool screen
);
1035 int main(int argc
,const char *argv
[])
1037 /* shall I run as a daemon */
1038 static bool is_daemon
= False
;
1039 static bool interactive
= False
;
1040 static bool Fork
= True
;
1041 static bool no_process_group
= False
;
1042 static bool log_stdout
= False
;
1043 static char *ports
= NULL
;
1044 static char *profile_level
= NULL
;
1047 bool print_build_options
= False
;
1052 OPT_NO_PROCESS_GROUP
,
1055 struct poptOption long_options
[] = {
1057 {"daemon", 'D', POPT_ARG_NONE
, NULL
, OPT_DAEMON
, "Become a daemon (default)" },
1058 {"interactive", 'i', POPT_ARG_NONE
, NULL
, OPT_INTERACTIVE
, "Run interactive (not a daemon)"},
1059 {"foreground", 'F', POPT_ARG_NONE
, NULL
, OPT_FORK
, "Run daemon in foreground (for daemontools, etc.)" },
1060 {"no-process-group", '\0', POPT_ARG_NONE
, NULL
, OPT_NO_PROCESS_GROUP
, "Don't create a new process group" },
1061 {"log-stdout", 'S', POPT_ARG_NONE
, NULL
, OPT_LOG_STDOUT
, "Log to stdout" },
1062 {"build-options", 'b', POPT_ARG_NONE
, NULL
, 'b', "Print build options" },
1063 {"port", 'p', POPT_ARG_STRING
, &ports
, 0, "Listen on the specified ports"},
1064 {"profiling-level", 'P', POPT_ARG_STRING
, &profile_level
, 0, "Set profiling level","PROFILE_LEVEL"},
1066 POPT_COMMON_DYNCONFIG
1069 TALLOC_CTX
*frame
= talloc_stackframe(); /* Setup tos. */
1073 #ifdef HAVE_SET_AUTH_PARAMETERS
1074 set_auth_parameters(argc
,argv
);
1077 pc
= poptGetContext("smbd", argc
, argv
, long_options
, 0);
1078 while((opt
= poptGetNextOpt(pc
)) != -1) {
1083 case OPT_INTERACTIVE
:
1089 case OPT_NO_PROCESS_GROUP
:
1090 no_process_group
= true;
1092 case OPT_LOG_STDOUT
:
1096 print_build_options
= True
;
1099 d_fprintf(stderr
, "\nInvalid option %s: %s\n\n",
1100 poptBadOption(pc
, 0), poptStrerror(opt
));
1101 poptPrintUsage(pc
, stderr
, 0);
1105 poptFreeContext(pc
);
1112 setup_logging(argv
[0],log_stdout
);
1114 if (print_build_options
) {
1115 build_options(True
); /* Display output to screen as well as debug */
1122 /* needed for SecureWare on SCO */
1128 set_remote_machine_name("smbd", False
);
1130 if (interactive
&& (DEBUGLEVEL
>= 9)) {
1131 talloc_enable_leak_report();
1134 if (log_stdout
&& Fork
) {
1135 DEBUG(0,("ERROR: Can't log to stdout (-S) unless daemon is in foreground (-F) or interactive (-i)\n"));
1139 /* we want to re-seed early to prevent time delays causing
1140 client problems at a later date. (tridge) */
1141 generate_random_buffer(NULL
, 0);
1143 /* make absolutely sure we run as root - to handle cases where people
1144 are crazy enough to have it setuid */
1146 gain_root_privilege();
1147 gain_root_group_privilege();
1149 fault_setup((void (*)(void *))exit_server_fault
);
1150 dump_core_setup("smbd");
1152 CatchSignal(SIGTERM
, SIGNAL_CAST sig_term
);
1153 CatchSignal(SIGHUP
,SIGNAL_CAST sig_hup
);
1155 /* we are never interested in SIGPIPE */
1156 BlockSignals(True
,SIGPIPE
);
1159 /* we are never interested in SIGFPE */
1160 BlockSignals(True
,SIGFPE
);
1163 #if defined(SIGUSR2)
1164 /* We are no longer interested in USR2 */
1165 BlockSignals(True
,SIGUSR2
);
1168 /* POSIX demands that signals are inherited. If the invoking process has
1169 * these signals masked, we will have problems, as we won't recieve them. */
1170 BlockSignals(False
, SIGHUP
);
1171 BlockSignals(False
, SIGUSR1
);
1172 BlockSignals(False
, SIGTERM
);
1174 /* we want total control over the permissions on created files,
1175 so set our umask to 0 */
1182 DEBUG(0,("smbd version %s started.\n", SAMBA_VERSION_STRING
));
1183 DEBUGADD(0,("%s\n", COPYRIGHT_STARTUP_MESSAGE
));
1185 DEBUG(2,("uid=%d gid=%d euid=%d egid=%d\n",
1186 (int)getuid(),(int)getgid(),(int)geteuid(),(int)getegid()));
1188 /* Output the build options to the debug log */
1189 build_options(False
);
1191 if (sizeof(uint16
) < 2 || sizeof(uint32
) < 4) {
1192 DEBUG(0,("ERROR: Samba is not configured correctly for the word size on your machine\n"));
1197 * Do this before reload_services.
1200 if (!reload_services(False
))
1206 if (!profile_setup(smbd_messaging_context(), False
)) {
1207 DEBUG(0,("ERROR: failed to setup profiling\n"));
1210 if (profile_level
!= NULL
) {
1211 int pl
= atoi(profile_level
);
1212 struct server_id src
;
1214 DEBUG(1, ("setting profiling level: %s\n",profile_level
));
1216 set_profile_level(pl
, src
);
1220 DEBUG(3,( "loaded services\n"));
1222 if (!is_daemon
&& !is_a_socket(0)) {
1224 DEBUG(0,("standard input is not a socket, assuming -D option\n"));
1227 * Setting is_daemon here prevents us from eventually calling
1228 * the open_sockets_inetd()
1234 if (is_daemon
&& !interactive
) {
1235 DEBUG( 3, ( "Becoming a daemon.\n" ) );
1236 become_daemon(Fork
, no_process_group
);
1241 * If we're interactive we want to set our own process group for
1242 * signal management.
1244 if (interactive
&& !no_process_group
)
1245 setpgid( (pid_t
)0, (pid_t
)0);
1248 if (!directory_exist(lp_lockdir(), NULL
))
1249 mkdir(lp_lockdir(), 0755);
1252 pidfile_create("smbd");
1254 /* Setup all the TDB's - including CLEAR_IF_FIRST tdb's. */
1256 if (smbd_messaging_context() == NULL
)
1259 if (smbd_memcache() == NULL
) {
1263 memcache_set_global(smbd_memcache());
1265 /* Initialise the password backed before the global_sam_sid
1266 to ensure that we fetch from ldap before we make a domain sid up */
1268 if(!initialize_password_db(False
, smbd_event_context()))
1271 if (!secrets_init()) {
1272 DEBUG(0, ("ERROR: smbd can not open secrets.tdb\n"));
1276 if(!get_global_sam_sid()) {
1277 DEBUG(0,("ERROR: Samba cannot create a SAM SID.\n"));
1281 if (!session_init())
1284 if (!connections_init(True
))
1287 if (!locking_init())
1292 if (!init_registry())
1296 if (!init_svcctl_db())
1300 if (!print_backend_init(smbd_messaging_context()))
1303 if (!init_guest_info()) {
1304 DEBUG(0,("ERROR: failed to setup guest info.\n"));
1308 /* only start the background queue daemon if we are
1309 running as a daemon -- bad things will happen if
1310 smbd is launched via inetd and we fork a copy of
1313 if ( is_daemon
&& !interactive
)
1314 start_background_queue();
1316 /* Always attempt to initialize DMAPI. We will only use it later if
1317 * lp_dmapi_support is set on the share, but we need a single global
1318 * session to work with.
1320 dmapi_init_session();
1322 if (!open_sockets_smbd(is_daemon
, interactive
, ports
))
1326 * everything after this point is run after the fork()
1333 /* Possibly reload the services file. Only worth doing in
1334 * daemon mode. In inetd mode, we know we only just loaded this.
1337 reload_services(True
);
1340 if (!init_account_policy()) {
1341 DEBUG(0,("Could not open account policy tdb.\n"));
1345 if (*lp_rootdir()) {
1346 if (sys_chroot(lp_rootdir()) == 0)
1347 DEBUG(2,("Changed root to %s\n", lp_rootdir()));
1351 if (!init_oplocks(smbd_messaging_context()))
1354 /* Setup aio signal handler. */
1355 initialize_async_io_handler();
1358 * For clustering, we need to re-init our ctdbd connection after the
1361 if (!NT_STATUS_IS_OK(messaging_reinit(smbd_messaging_context())))
1364 /* register our message handlers */
1365 messaging_register(smbd_messaging_context(), NULL
,
1366 MSG_SMB_FORCE_TDIS
, msg_force_tdis
);
1367 messaging_register(smbd_messaging_context(), NULL
,
1368 MSG_SMB_RELEASE_IP
, msg_release_ip
);
1370 if ((lp_keepalive() != 0)
1371 && !(event_add_idle(smbd_event_context(), NULL
,
1372 timeval_set(lp_keepalive(), 0),
1373 "keepalive", keepalive_fn
,
1375 DEBUG(0, ("Could not add keepalive event\n"));
1379 if (!(event_add_idle(smbd_event_context(), NULL
,
1380 timeval_set(IDLE_CLOSED_TIMEOUT
, 0),
1381 "deadtime", deadtime_fn
, NULL
))) {
1382 DEBUG(0, ("Could not add deadtime event\n"));
1390 namecache_shutdown();
1392 exit_server_cleanly(NULL
);