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
;
93 if (!ctx
&& !(ctx
= messaging_init(NULL
, server_id_self(),
94 smbd_event_context()))) {
95 smb_panic("Could not init smbd messaging context");
100 struct memcache
*smbd_memcache(void)
102 static struct memcache
*cache
;
105 && !(cache
= memcache_init(NULL
,
106 lp_max_stat_cache_size()*1024))) {
108 smb_panic("Could not init smbd memcache");
113 /*******************************************************************
114 What to do when smb.conf is updated.
115 ********************************************************************/
117 static void smb_conf_updated(struct messaging_context
*msg
,
120 struct server_id server_id
,
123 DEBUG(10,("smb_conf_updated: Got message saying smb.conf was "
124 "updated. Reloading.\n"));
125 reload_services(False
);
129 /*******************************************************************
130 Delete a statcache entry.
131 ********************************************************************/
133 static void smb_stat_cache_delete(struct messaging_context
*msg
,
136 struct server_id server_id
,
139 const char *name
= (const char *)data
->data
;
140 DEBUG(10,("smb_stat_cache_delete: delete name %s\n", name
));
141 stat_cache_delete(name
);
144 /****************************************************************************
146 ****************************************************************************/
148 static void sig_term(void)
151 sys_select_signal(SIGTERM
);
154 /****************************************************************************
156 ****************************************************************************/
158 static void sig_hup(int sig
)
160 reload_after_sighup
= 1;
161 sys_select_signal(SIGHUP
);
164 /****************************************************************************
166 ****************************************************************************/
167 static void sig_cld(int sig
)
170 sys_select_signal(SIGCLD
);
173 /****************************************************************************
174 Send a SIGTERM to our process group.
175 *****************************************************************************/
177 static void killkids(void)
179 if(am_parent
) kill(0,SIGTERM
);
182 /****************************************************************************
183 Process a sam sync message - not sure whether to do this here or
185 ****************************************************************************/
187 static void msg_sam_sync(struct messaging_context
*msg
,
190 struct server_id server_id
,
193 DEBUG(10, ("** sam sync message received, ignoring\n"));
197 /****************************************************************************
198 Open the socket communication - inetd.
199 ****************************************************************************/
201 static bool open_sockets_inetd(void)
203 /* Started from inetd. fd 0 is the socket. */
204 /* We will abort gracefully when the client or remote system
206 smbd_set_server_fd(dup(0));
208 /* close our standard file descriptors */
209 close_low_fds(False
); /* Don't close stderr */
211 set_socket_options(smbd_server_fd(),"SO_KEEPALIVE");
212 set_socket_options(smbd_server_fd(), lp_socket_options());
217 static void msg_exit_server(struct messaging_context
*msg
,
220 struct server_id server_id
,
223 DEBUG(3, ("got a SHUTDOWN message\n"));
224 exit_server_cleanly(NULL
);
228 static void msg_inject_fault(struct messaging_context
*msg
,
231 struct server_id src
,
236 if (data
->length
!= sizeof(sig
)) {
238 DEBUG(0, ("Process %s sent bogus signal injection request\n",
239 procid_str_static(&src
)));
243 sig
= *(int *)data
->data
;
245 exit_server("internal error injected");
250 DEBUG(0, ("Process %s requested injection of signal %d (%s)\n",
251 procid_str_static(&src
), sig
, strsignal(sig
)));
253 DEBUG(0, ("Process %s requested injection of signal %d\n",
254 procid_str_static(&src
), sig
));
257 kill(sys_getpid(), sig
);
259 #endif /* DEVELOPER */
262 struct child_pid
*prev
, *next
;
266 static struct child_pid
*children
;
267 static int num_children
;
269 static void add_child_pid(pid_t pid
)
271 struct child_pid
*child
;
273 if (lp_max_smbd_processes() == 0) {
274 /* Don't bother with the child list if we don't care anyway */
278 child
= SMB_MALLOC_P(struct child_pid
);
280 DEBUG(0, ("Could not add child struct -- malloc failed\n"));
284 DLIST_ADD(children
, child
);
288 static void remove_child_pid(pid_t pid
, bool unclean_shutdown
)
290 struct child_pid
*child
;
292 if (unclean_shutdown
) {
293 /* a child terminated uncleanly so tickle all processes to see
294 if they can grab any of the pending locks
296 messaging_send_buf(smbd_messaging_context(), procid_self(),
297 MSG_SMB_BRL_VALIDATE
, NULL
, 0);
298 message_send_all(smbd_messaging_context(),
299 MSG_SMB_UNLOCK
, NULL
, 0, NULL
);
302 if (lp_max_smbd_processes() == 0) {
303 /* Don't bother with the child list if we don't care anyway */
307 for (child
= children
; child
!= NULL
; child
= child
->next
) {
308 if (child
->pid
== pid
) {
309 struct child_pid
*tmp
= child
;
310 DLIST_REMOVE(children
, child
);
317 DEBUG(0, ("Could not find child %d -- ignoring\n", (int)pid
));
320 /****************************************************************************
321 Have we reached the process limit ?
322 ****************************************************************************/
324 static bool allowable_number_of_smbd_processes(void)
326 int max_processes
= lp_max_smbd_processes();
331 return num_children
< max_processes
;
334 /****************************************************************************
335 Open the socket communication.
336 ****************************************************************************/
338 static bool open_sockets_smbd(bool is_daemon
, bool interactive
, const char *smb_ports
)
340 int num_interfaces
= iface_count();
342 int fd_listenset
[FD_SETSIZE
];
348 struct dns_reg_state
* dns_reg
= NULL
;
349 unsigned dns_port
= 0;
352 return open_sockets_inetd();
357 static int atexit_set
;
358 if(atexit_set
== 0) {
366 CatchSignal(SIGCLD
, sig_cld
);
368 FD_ZERO(&listen_set
);
370 /* use a reasonable default set of ports - listing on 445 and 139 */
372 ports
= lp_smb_ports();
373 if (!ports
|| !*ports
) {
374 ports
= smb_xstrdup(SMB_PORTS
);
376 ports
= smb_xstrdup(ports
);
379 ports
= smb_xstrdup(smb_ports
);
382 if (lp_interfaces() && lp_bind_interfaces_only()) {
383 /* We have been given an interfaces line, and been
384 told to only bind to those interfaces. Create a
385 socket per interface and bind to only these.
388 /* Now open a listen socket for each of the
390 for(i
= 0; i
< num_interfaces
; i
++) {
391 TALLOC_CTX
*frame
= NULL
;
392 const struct sockaddr_storage
*ifss
=
393 iface_n_sockaddr_storage(i
);
398 DEBUG(0,("open_sockets_smbd: "
399 "interface %d has NULL IP address !\n",
404 frame
= talloc_stackframe();
406 next_token_talloc(frame
,&ptr
, &tok
, " \t,");) {
407 unsigned port
= atoi(tok
);
408 if (port
== 0 || port
> 0xffff) {
412 /* Keep the first port for mDNS service
419 s
= fd_listenset
[num_sockets
] =
420 open_socket_in(SOCK_STREAM
,
422 num_sockets
== 0 ? 0 : 2,
429 /* ready to listen */
430 set_socket_options(s
,"SO_KEEPALIVE");
431 set_socket_options(s
,lp_socket_options());
433 /* Set server socket to
434 * non-blocking for the accept. */
435 set_blocking(s
,False
);
437 if (listen(s
, SMBD_LISTEN_BACKLOG
) == -1) {
438 DEBUG(0,("open_sockets_smbd: listen: "
439 "%s\n", strerror(errno
)));
444 FD_SET(s
,&listen_set
);
445 maxfd
= MAX( maxfd
, s
);
448 if (num_sockets
>= FD_SETSIZE
) {
449 DEBUG(0,("open_sockets_smbd: Too "
450 "many sockets to bind to\n"));
458 /* Just bind to 0.0.0.0 - accept connections
461 TALLOC_CTX
*frame
= talloc_stackframe();
464 const char *sock_addr
= lp_socket_address();
466 const char *sock_ptr
;
468 if (strequal(sock_addr
, "0.0.0.0") ||
469 strequal(sock_addr
, "::")) {
471 sock_addr
= "::,0.0.0.0";
473 sock_addr
= "0.0.0.0";
477 for (sock_ptr
=sock_addr
;
478 next_token_talloc(frame
, &sock_ptr
, &sock_tok
, " \t,"); ) {
479 for (ptr
=ports
; next_token_talloc(frame
, &ptr
, &tok
, " \t,"); ) {
480 struct sockaddr_storage ss
;
482 unsigned port
= atoi(tok
);
483 if (port
== 0 || port
> 0xffff) {
487 /* Keep the first port for mDNS service
494 /* open an incoming socket */
495 if (!interpret_string_addr(&ss
, sock_tok
,
496 AI_NUMERICHOST
|AI_PASSIVE
)) {
500 s
= open_socket_in(SOCK_STREAM
,
502 num_sockets
== 0 ? 0 : 2,
509 /* ready to listen */
510 set_socket_options(s
,"SO_KEEPALIVE");
511 set_socket_options(s
,lp_socket_options());
513 /* Set server socket to non-blocking
515 set_blocking(s
,False
);
517 if (listen(s
, SMBD_LISTEN_BACKLOG
) == -1) {
518 DEBUG(0,("open_sockets_smbd: "
526 fd_listenset
[num_sockets
] = s
;
527 FD_SET(s
,&listen_set
);
528 maxfd
= MAX( maxfd
, s
);
532 if (num_sockets
>= FD_SETSIZE
) {
533 DEBUG(0,("open_sockets_smbd: Too "
534 "many sockets to bind to\n"));
545 if (num_sockets
== 0) {
546 DEBUG(0,("open_sockets_smbd: No "
547 "sockets available to bind to.\n"));
551 /* Setup the main smbd so that we can get messages. Note that
552 do this after starting listening. This is needed as when in
553 clustered mode, ctdb won't allow us to start doing database
554 operations until it has gone thru a full startup, which
555 includes checking to see that smbd is listening. */
556 claim_connection(NULL
,"",
557 FLAG_MSG_GENERAL
|FLAG_MSG_SMBD
|FLAG_MSG_DBWRAP
);
559 /* Listen to messages */
561 messaging_register(smbd_messaging_context(), NULL
,
562 MSG_SMB_SAM_SYNC
, msg_sam_sync
);
563 messaging_register(smbd_messaging_context(), NULL
,
564 MSG_SHUTDOWN
, msg_exit_server
);
565 messaging_register(smbd_messaging_context(), NULL
,
566 MSG_SMB_FILE_RENAME
, msg_file_was_renamed
);
567 messaging_register(smbd_messaging_context(), NULL
,
568 MSG_SMB_CONF_UPDATED
, smb_conf_updated
);
569 messaging_register(smbd_messaging_context(), NULL
,
570 MSG_SMB_STAT_CACHE_DELETE
, smb_stat_cache_delete
);
571 brl_register_msgs(smbd_messaging_context());
574 messaging_register(smbd_messaging_context(), NULL
,
575 MSG_SMB_INJECT_FAULT
, msg_inject_fault
);
578 /* now accept incoming connections - forking a new process
579 for each incoming connection */
580 DEBUG(2,("waiting for a connection\n"));
582 struct timeval now
, idle_timeout
;
586 /* Ensure we respond to PING and DEBUG messages from the main smbd. */
587 message_dispatch(smbd_messaging_context());
595 while ((pid
= sys_waitpid(-1, &status
, WNOHANG
)) > 0) {
596 bool unclean_shutdown
= False
;
598 /* If the child terminated normally, assume
599 it was an unclean shutdown unless the
602 if (WIFEXITED(status
)) {
603 unclean_shutdown
= WEXITSTATUS(status
);
605 /* If the child terminated due to a signal
606 we always assume it was unclean.
608 if (WIFSIGNALED(status
)) {
609 unclean_shutdown
= True
;
611 remove_child_pid(pid
, unclean_shutdown
);
615 idle_timeout
= timeval_zero();
617 memcpy((char *)&r_fds
, (char *)&listen_set
,
622 /* Kick off our mDNS registration. */
624 dns_register_smbd(&dns_reg
, dns_port
, &maxfd
,
625 &r_fds
, &idle_timeout
);
628 event_add_to_select_args(smbd_event_context(), &now
,
629 &r_fds
, &w_fds
, &idle_timeout
,
632 num
= sys_select(maxfd
+1,&r_fds
,&w_fds
,NULL
,
633 timeval_is_zero(&idle_timeout
) ?
634 NULL
: &idle_timeout
);
636 if (num
== -1 && errno
== EINTR
) {
638 exit_server_cleanly(NULL
);
641 /* check for sighup processing */
642 if (reload_after_sighup
) {
643 change_to_root_user();
644 DEBUG(1,("Reloading services after SIGHUP\n"));
645 reload_services(False
);
646 reload_after_sighup
= 0;
653 /* If the idle timeout fired and we don't have any connected
654 * users, exit gracefully. We should be running under a process
655 * controller that will restart us if necessry.
657 if (num
== 0 && count_all_current_connections() == 0) {
658 exit_server_cleanly("idle timeout");
661 /* process pending nDNS responses */
662 if (dns_register_smbd_reply(dns_reg
, &r_fds
, &idle_timeout
)) {
666 if (run_events(smbd_event_context(), num
, &r_fds
, &w_fds
)) {
670 /* check if we need to reload services */
671 check_reload(time(NULL
));
673 /* Find the sockets that are read-ready -
675 for( ; num
> 0; num
--) {
676 struct sockaddr addr
;
677 socklen_t in_addrlen
= sizeof(addr
);
681 for(i
= 0; i
< num_sockets
; i
++) {
682 if(FD_ISSET(fd_listenset
[i
],&r_fds
)) {
684 /* Clear this so we don't look
686 FD_CLR(fd_listenset
[i
],&r_fds
);
691 smbd_set_server_fd(accept(s
,&addr
,&in_addrlen
));
693 if (smbd_server_fd() == -1 && errno
== EINTR
)
696 if (smbd_server_fd() == -1) {
697 DEBUG(2,("open_sockets_smbd: accept: %s\n",
702 /* Ensure child is set to blocking mode */
703 set_blocking(smbd_server_fd(),True
);
705 if (smbd_server_fd() != -1 && interactive
)
708 if (allowable_number_of_smbd_processes() &&
709 smbd_server_fd() != -1 &&
710 ((child
= sys_fork())==0)) {
711 char remaddr
[INET6_ADDRSTRLEN
];
715 /* Stop zombies, the parent explicitly handles
716 * them, counting worker smbds. */
719 /* close the listening socket(s) */
720 for(i
= 0; i
< num_sockets
; i
++)
721 close(fd_listenset
[i
]);
723 /* close our mDNS daemon handle */
724 dns_register_close(&dns_reg
);
726 /* close our standard file
728 close_low_fds(False
);
731 set_socket_options(smbd_server_fd(),"SO_KEEPALIVE");
732 set_socket_options(smbd_server_fd(),
733 lp_socket_options());
735 /* this is needed so that we get decent entries
736 in smbstatus for port 445 connects */
737 set_remote_machine_name(get_peer_addr(smbd_server_fd(),
742 if (!reinit_after_fork(
743 smbd_messaging_context(), true)) {
744 DEBUG(0,("reinit_after_fork() failed\n"));
745 smb_panic("reinit_after_fork() failed");
750 /* The parent doesn't need this socket */
751 close(smbd_server_fd());
753 /* Sun May 6 18:56:14 2001 ackley@cs.unm.edu:
754 Clear the closed fd info out of server_fd --
755 and more importantly, out of client_fd in
756 util_sock.c, to avoid a possible
757 getpeername failure if we reopen the logs
758 and use %I in the filename.
761 smbd_set_server_fd(-1);
764 add_child_pid(child
);
767 /* Force parent to check log size after
768 * spawning child. Fix from
769 * klausr@ITAP.Physik.Uni-Stuttgart.De. The
770 * parent smbd will log to logserver.smb. It
771 * writes only two messages for each child
772 * started/finished. But each child writes,
773 * say, 50 messages also in logserver.smb,
774 * begining with the debug_count of the
775 * parent, before the child opens its own log
776 * file logserver.client. In a worst case
777 * scenario the size of logserver.smb would be
778 * checked after about 50*50=2500 messages
781 force_check_log_size();
786 /* NOTREACHED return True; */
789 /****************************************************************************
791 **************************************************************************/
792 void reload_printers(void)
795 int n_services
= lp_numservices();
796 int pnum
= lp_servicenumber(PRINTERS_NAME
);
801 /* remove stale printers */
802 for (snum
= 0; snum
< n_services
; snum
++) {
803 /* avoid removing PRINTERS_NAME or non-autoloaded printers */
804 if (snum
== pnum
|| !(lp_snum_ok(snum
) && lp_print_ok(snum
) &&
805 lp_autoloaded(snum
)))
808 pname
= lp_printername(snum
);
809 if (!pcap_printername_ok(pname
)) {
810 DEBUG(3, ("removing stale printer %s\n", pname
));
812 if (is_printer_published(NULL
, snum
, NULL
))
813 nt_printer_publish(NULL
, snum
, SPOOL_DS_UNPUBLISH
);
814 del_a_printer(pname
);
815 lp_killservice(snum
);
822 /****************************************************************************
823 Reload the services file.
824 **************************************************************************/
826 bool reload_services(bool test
)
831 char *fname
= lp_configfile();
832 if (file_exist(fname
, NULL
) &&
833 !strcsequal(fname
, get_dyn_CONFIGFILE())) {
834 set_dyn_CONFIGFILE(fname
);
841 if (test
&& !lp_file_list_changed())
844 lp_killunused(conn_snum_used
);
846 ret
= lp_load(get_dyn_CONFIGFILE(), False
, False
, True
, True
);
850 /* perhaps the config filename is now set */
852 reload_services(True
);
858 if (smbd_server_fd() != -1) {
859 set_socket_options(smbd_server_fd(),"SO_KEEPALIVE");
860 set_socket_options(smbd_server_fd(), lp_socket_options());
863 mangle_reset_cache();
866 /* this forces service parameters to be flushed */
867 set_current_service(NULL
,0,True
);
872 /****************************************************************************
874 ****************************************************************************/
876 /* Reasons for shutting down a server process. */
877 enum server_exit_reason
{ SERVER_EXIT_NORMAL
, SERVER_EXIT_ABNORMAL
};
879 static void exit_server_common(enum server_exit_reason how
,
880 const char *const reason
) NORETURN_ATTRIBUTE
;
882 static void exit_server_common(enum server_exit_reason how
,
883 const char *const reason
)
885 static int firsttime
=1;
891 change_to_root_user();
893 if (negprot_global_auth_context
) {
894 (negprot_global_auth_context
->free
)(&negprot_global_auth_context
);
899 invalidate_all_vuids();
901 /* 3 second timeout. */
902 print_notify_send_messages(smbd_messaging_context(), 3);
904 /* delete our entry in the connections database. */
905 yield_connection(NULL
,"");
907 respond_to_all_remaining_local_messages();
910 if (dcelogin_atmost_once
) {
916 /* Destroy Samba DMAPI session only if we are master smbd process */
918 if (!dmapi_destroy_session()) {
919 DEBUG(0,("Unable to close Samba DMAPI session\n"));
927 if (how
!= SERVER_EXIT_NORMAL
) {
928 int oldlevel
= DEBUGLEVEL
;
933 DEBUG(0,("Abnormal server exit: %s\n",
934 reason
? reason
: "no explanation provided"));
939 DEBUGLEVEL
= oldlevel
;
943 DEBUG(3,("Server exit (%s)\n",
944 (reason
? reason
: "normal exit")));
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",
985 static void msg_release_ip(struct messaging_context
*msg_ctx
, void *private_data
,
986 uint32_t msg_type
, struct server_id server_id
, DATA_BLOB
*data
)
988 release_ip((char *)data
->data
, NULL
);
991 /****************************************************************************
992 Initialise connect, service and file structs.
993 ****************************************************************************/
995 static bool init_structs(void )
998 * Set the machine NETBIOS name if not already
999 * set from the config file.
1010 init_rpc_pipe_hnd();
1014 if (!secrets_init())
1021 * Send keepalive packets to our client
1023 static bool keepalive_fn(const struct timeval
*now
, void *private_data
)
1025 if (!send_keepalive(smbd_server_fd())) {
1026 DEBUG( 2, ( "Keepalive failed - exiting.\n" ) );
1033 * Do the recurring check if we're idle
1035 static bool deadtime_fn(const struct timeval
*now
, void *private_data
)
1037 if ((conn_num_open() == 0)
1038 || (conn_idle_all(now
->tv_sec
))) {
1039 DEBUG( 2, ( "Closing idle connection\n" ) );
1040 messaging_send(smbd_messaging_context(), procid_self(),
1041 MSG_SHUTDOWN
, &data_blob_null
);
1049 /****************************************************************************
1051 ****************************************************************************/
1053 /* Declare prototype for build_options() to avoid having to run it through
1054 mkproto.h. Mixing $(builddir) and $(srcdir) source files in the current
1055 prototype generation system is too complicated. */
1057 extern void build_options(bool screen
);
1059 int main(int argc
,const char *argv
[])
1061 /* shall I run as a daemon */
1062 static bool is_daemon
= False
;
1063 static bool interactive
= False
;
1064 static bool Fork
= True
;
1065 static bool no_process_group
= False
;
1066 static bool log_stdout
= False
;
1067 static char *ports
= NULL
;
1068 static char *profile_level
= NULL
;
1071 bool print_build_options
= False
;
1076 OPT_NO_PROCESS_GROUP
,
1079 struct poptOption long_options
[] = {
1081 {"daemon", 'D', POPT_ARG_NONE
, NULL
, OPT_DAEMON
, "Become a daemon (default)" },
1082 {"interactive", 'i', POPT_ARG_NONE
, NULL
, OPT_INTERACTIVE
, "Run interactive (not a daemon)"},
1083 {"foreground", 'F', POPT_ARG_NONE
, NULL
, OPT_FORK
, "Run daemon in foreground (for daemontools, etc.)" },
1084 {"no-process-group", '\0', POPT_ARG_NONE
, NULL
, OPT_NO_PROCESS_GROUP
, "Don't create a new process group" },
1085 {"log-stdout", 'S', POPT_ARG_NONE
, NULL
, OPT_LOG_STDOUT
, "Log to stdout" },
1086 {"build-options", 'b', POPT_ARG_NONE
, NULL
, 'b', "Print build options" },
1087 {"port", 'p', POPT_ARG_STRING
, &ports
, 0, "Listen on the specified ports"},
1088 {"profiling-level", 'P', POPT_ARG_STRING
, &profile_level
, 0, "Set profiling level","PROFILE_LEVEL"},
1090 POPT_COMMON_DYNCONFIG
1093 TALLOC_CTX
*frame
= talloc_stackframe(); /* Setup tos. */
1097 db_tdb2_setup_messaging(NULL
, false);
1099 #ifdef HAVE_SET_AUTH_PARAMETERS
1100 set_auth_parameters(argc
,argv
);
1103 pc
= poptGetContext("smbd", argc
, argv
, long_options
, 0);
1104 while((opt
= poptGetNextOpt(pc
)) != -1) {
1109 case OPT_INTERACTIVE
:
1115 case OPT_NO_PROCESS_GROUP
:
1116 no_process_group
= true;
1118 case OPT_LOG_STDOUT
:
1122 print_build_options
= True
;
1125 d_fprintf(stderr
, "\nInvalid option %s: %s\n\n",
1126 poptBadOption(pc
, 0), poptStrerror(opt
));
1127 poptPrintUsage(pc
, stderr
, 0);
1131 poptFreeContext(pc
);
1138 setup_logging(argv
[0],log_stdout
);
1140 if (print_build_options
) {
1141 build_options(True
); /* Display output to screen as well as debug */
1148 /* needed for SecureWare on SCO */
1154 set_remote_machine_name("smbd", False
);
1156 if (interactive
&& (DEBUGLEVEL
>= 9)) {
1157 talloc_enable_leak_report();
1160 if (log_stdout
&& Fork
) {
1161 DEBUG(0,("ERROR: Can't log to stdout (-S) unless daemon is in foreground (-F) or interactive (-i)\n"));
1165 /* we want to re-seed early to prevent time delays causing
1166 client problems at a later date. (tridge) */
1167 generate_random_buffer(NULL
, 0);
1169 /* make absolutely sure we run as root - to handle cases where people
1170 are crazy enough to have it setuid */
1172 gain_root_privilege();
1173 gain_root_group_privilege();
1175 fault_setup((void (*)(void *))exit_server_fault
);
1176 dump_core_setup("smbd");
1178 CatchSignal(SIGTERM
, SIGNAL_CAST sig_term
);
1179 CatchSignal(SIGHUP
,SIGNAL_CAST sig_hup
);
1181 /* we are never interested in SIGPIPE */
1182 BlockSignals(True
,SIGPIPE
);
1185 /* we are never interested in SIGFPE */
1186 BlockSignals(True
,SIGFPE
);
1189 #if defined(SIGUSR2)
1190 /* We are no longer interested in USR2 */
1191 BlockSignals(True
,SIGUSR2
);
1194 /* POSIX demands that signals are inherited. If the invoking process has
1195 * these signals masked, we will have problems, as we won't recieve them. */
1196 BlockSignals(False
, SIGHUP
);
1197 BlockSignals(False
, SIGUSR1
);
1198 BlockSignals(False
, SIGTERM
);
1200 /* we want total control over the permissions on created files,
1201 so set our umask to 0 */
1208 DEBUG(0,("smbd version %s started.\n", SAMBA_VERSION_STRING
));
1209 DEBUGADD(0,("%s\n", COPYRIGHT_STARTUP_MESSAGE
));
1211 DEBUG(2,("uid=%d gid=%d euid=%d egid=%d\n",
1212 (int)getuid(),(int)getgid(),(int)geteuid(),(int)getegid()));
1214 /* Output the build options to the debug log */
1215 build_options(False
);
1217 if (sizeof(uint16
) < 2 || sizeof(uint32
) < 4) {
1218 DEBUG(0,("ERROR: Samba is not configured correctly for the word size on your machine\n"));
1222 if (!lp_load_initial_only(get_dyn_CONFIGFILE())) {
1223 DEBUG(0, ("error opening config file\n"));
1227 if (smbd_messaging_context() == NULL
)
1231 * Do this before reload_services.
1233 db_tdb2_setup_messaging(smbd_messaging_context(), true);
1235 if (!reload_services(False
))
1241 if (!profile_setup(smbd_messaging_context(), False
)) {
1242 DEBUG(0,("ERROR: failed to setup profiling\n"));
1245 if (profile_level
!= NULL
) {
1246 int pl
= atoi(profile_level
);
1247 struct server_id src
;
1249 DEBUG(1, ("setting profiling level: %s\n",profile_level
));
1251 set_profile_level(pl
, src
);
1255 DEBUG(3,( "loaded services\n"));
1257 if (!is_daemon
&& !is_a_socket(0)) {
1259 DEBUG(0,("standard input is not a socket, assuming -D option\n"));
1262 * Setting is_daemon here prevents us from eventually calling
1263 * the open_sockets_inetd()
1269 if (is_daemon
&& !interactive
) {
1270 DEBUG( 3, ( "Becoming a daemon.\n" ) );
1271 become_daemon(Fork
, no_process_group
);
1276 * If we're interactive we want to set our own process group for
1277 * signal management.
1279 if (interactive
&& !no_process_group
)
1280 setpgid( (pid_t
)0, (pid_t
)0);
1283 if (!directory_exist(lp_lockdir(), NULL
))
1284 mkdir(lp_lockdir(), 0755);
1287 pidfile_create("smbd");
1289 if (!reinit_after_fork(smbd_messaging_context(), false)) {
1290 DEBUG(0,("reinit_after_fork() failed\n"));
1294 /* Setup all the TDB's - including CLEAR_IF_FIRST tdb's. */
1296 if (smbd_memcache() == NULL
) {
1300 memcache_set_global(smbd_memcache());
1302 /* Initialise the password backed before the global_sam_sid
1303 to ensure that we fetch from ldap before we make a domain sid up */
1305 if(!initialize_password_db(False
, smbd_event_context()))
1308 if (!secrets_init()) {
1309 DEBUG(0, ("ERROR: smbd can not open secrets.tdb\n"));
1313 if(!get_global_sam_sid()) {
1314 DEBUG(0,("ERROR: Samba cannot create a SAM SID.\n"));
1318 if (!session_init())
1321 if (!connections_init(True
))
1324 if (!locking_init())
1329 if (!W_ERROR_IS_OK(registry_init_full()))
1333 if (!init_svcctl_db())
1337 if (!print_backend_init(smbd_messaging_context()))
1340 if (!init_guest_info()) {
1341 DEBUG(0,("ERROR: failed to setup guest info.\n"));
1345 /* only start the background queue daemon if we are
1346 running as a daemon -- bad things will happen if
1347 smbd is launched via inetd and we fork a copy of
1350 if (is_daemon
&& !interactive
1351 && lp_parm_bool(-1, "smbd", "backgroundqueue", true)) {
1352 start_background_queue();
1355 if (!open_sockets_smbd(is_daemon
, interactive
, ports
))
1359 * everything after this point is run after the fork()
1366 /* Possibly reload the services file. Only worth doing in
1367 * daemon mode. In inetd mode, we know we only just loaded this.
1370 reload_services(True
);
1373 if (!init_account_policy()) {
1374 DEBUG(0,("Could not open account policy tdb.\n"));
1378 if (*lp_rootdir()) {
1379 if (sys_chroot(lp_rootdir()) == 0)
1380 DEBUG(2,("Changed root to %s\n", lp_rootdir()));
1384 if (!init_oplocks(smbd_messaging_context()))
1387 /* Setup aio signal handler. */
1388 initialize_async_io_handler();
1390 /* register our message handlers */
1391 messaging_register(smbd_messaging_context(), NULL
,
1392 MSG_SMB_FORCE_TDIS
, msg_force_tdis
);
1393 messaging_register(smbd_messaging_context(), NULL
,
1394 MSG_SMB_RELEASE_IP
, msg_release_ip
);
1396 if ((lp_keepalive() != 0)
1397 && !(event_add_idle(smbd_event_context(), NULL
,
1398 timeval_set(lp_keepalive(), 0),
1399 "keepalive", keepalive_fn
,
1401 DEBUG(0, ("Could not add keepalive event\n"));
1405 if (!(event_add_idle(smbd_event_context(), NULL
,
1406 timeval_set(IDLE_CLOSED_TIMEOUT
, 0),
1407 "deadtime", deadtime_fn
, NULL
))) {
1408 DEBUG(0, ("Could not add deadtime event\n"));
1412 #ifdef CLUSTER_SUPPORT
1414 if (lp_clustering()) {
1416 * We need to tell ctdb about our client's TCP
1417 * connection, so that for failover ctdbd can send
1418 * tickle acks, triggering a reconnection by the
1422 struct sockaddr_in srv
, clnt
;
1424 if (client_get_tcp_info(&srv
, &clnt
) == 0) {
1428 status
= ctdbd_register_ips(
1429 messaging_ctdbd_connection(),
1430 &srv
, &clnt
, release_ip
, NULL
);
1432 if (!NT_STATUS_IS_OK(status
)) {
1433 DEBUG(0, ("ctdbd_register_ips failed: %s\n",
1434 nt_errstr(status
)));
1438 DEBUG(0,("Unable to get tcp info for "
1439 "CTDB_CONTROL_TCP_CLIENT: %s\n",
1450 namecache_shutdown();
1452 exit_server_cleanly(NULL
);