2 Unix SMB/CIFS implementation.
3 Main SMB server routines
4 Copyright (C) Andrew Tridgell 1992-1998
5 Copyright (C) Martin Pool 2002
6 Copyright (C) Jelmer Vernooij 2002-2003
7 Copyright (C) Volker Lendecke 1993-2007
8 Copyright (C) Jeremy Allison 1993-2007
10 This program is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation; either version 3 of the License, or
13 (at your option) any later version.
15 This program is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
20 You should have received a copy of the GNU General Public License
21 along with this program. If not, see <http://www.gnu.org/licenses/>.
28 static int am_parent
= 1;
30 extern struct auth_context
*negprot_global_auth_context
;
31 extern SIG_ATOMIC_T got_sig_term
;
32 extern SIG_ATOMIC_T reload_after_sighup
;
33 static SIG_ATOMIC_T got_sig_cld
;
36 extern int dcelogin_atmost_once
;
39 /* really we should have a top level context structure that has the
40 client file descriptor as an element. That would require a major rewrite :(
42 the following 2 functions are an alternative - they make the file
43 descriptor private to smbd
45 static int server_fd
= -1;
47 int smbd_server_fd(void)
52 static void smbd_set_server_fd(int fd
)
57 int get_client_fd(void)
62 int client_get_tcp_info(struct sockaddr_in
*server
, struct sockaddr_in
*client
)
65 if (server_fd
== -1) {
68 length
= sizeof(*server
);
69 if (getsockname(server_fd
, (struct sockaddr
*)server
, &length
) != 0) {
72 length
= sizeof(*client
);
73 if (getpeername(server_fd
, (struct sockaddr
*)client
, &length
) != 0) {
79 struct event_context
*smbd_event_context(void)
81 static struct event_context
*ctx
;
83 if (!ctx
&& !(ctx
= event_context_init(NULL
))) {
84 smb_panic("Could not init smbd event context");
89 struct messaging_context
*smbd_messaging_context(void)
91 static struct messaging_context
*ctx
;
94 ctx
= messaging_init(NULL
, server_id_self(),
95 smbd_event_context());
98 DEBUG(0, ("Could not init smbd messaging context.\n"));
103 struct memcache
*smbd_memcache(void)
105 static struct memcache
*cache
;
108 && !(cache
= memcache_init(NULL
,
109 lp_max_stat_cache_size()*1024))) {
111 smb_panic("Could not init smbd memcache");
116 /*******************************************************************
117 What to do when smb.conf is updated.
118 ********************************************************************/
120 static void smb_conf_updated(struct messaging_context
*msg
,
123 struct server_id server_id
,
126 DEBUG(10,("smb_conf_updated: Got message saying smb.conf was "
127 "updated. Reloading.\n"));
128 reload_services(False
);
132 /*******************************************************************
133 Delete a statcache entry.
134 ********************************************************************/
136 static void smb_stat_cache_delete(struct messaging_context
*msg
,
139 struct server_id server_id
,
142 const char *name
= (const char *)data
->data
;
143 DEBUG(10,("smb_stat_cache_delete: delete name %s\n", name
));
144 stat_cache_delete(name
);
147 /****************************************************************************
149 ****************************************************************************/
151 static void sig_term(void)
154 sys_select_signal(SIGTERM
);
157 /****************************************************************************
159 ****************************************************************************/
161 static void sig_hup(int sig
)
163 reload_after_sighup
= 1;
164 sys_select_signal(SIGHUP
);
167 /****************************************************************************
169 ****************************************************************************/
170 static void sig_cld(int sig
)
173 sys_select_signal(SIGCLD
);
176 /****************************************************************************
177 Send a SIGTERM to our process group.
178 *****************************************************************************/
180 static void killkids(void)
182 if(am_parent
) kill(0,SIGTERM
);
185 /****************************************************************************
186 Process a sam sync message - not sure whether to do this here or
188 ****************************************************************************/
190 static void msg_sam_sync(struct messaging_context
*msg
,
193 struct server_id server_id
,
196 DEBUG(10, ("** sam sync message received, ignoring\n"));
200 /****************************************************************************
201 Open the socket communication - inetd.
202 ****************************************************************************/
204 static bool open_sockets_inetd(void)
206 /* Started from inetd. fd 0 is the socket. */
207 /* We will abort gracefully when the client or remote system
209 smbd_set_server_fd(dup(0));
211 /* close our standard file descriptors */
212 close_low_fds(False
); /* Don't close stderr */
214 set_socket_options(smbd_server_fd(),"SO_KEEPALIVE");
215 set_socket_options(smbd_server_fd(), lp_socket_options());
220 static void msg_exit_server(struct messaging_context
*msg
,
223 struct server_id server_id
,
226 DEBUG(3, ("got a SHUTDOWN message\n"));
227 exit_server_cleanly(NULL
);
231 static void msg_inject_fault(struct messaging_context
*msg
,
234 struct server_id src
,
239 if (data
->length
!= sizeof(sig
)) {
241 DEBUG(0, ("Process %s sent bogus signal injection request\n",
242 procid_str_static(&src
)));
246 sig
= *(int *)data
->data
;
248 exit_server("internal error injected");
253 DEBUG(0, ("Process %s requested injection of signal %d (%s)\n",
254 procid_str_static(&src
), sig
, strsignal(sig
)));
256 DEBUG(0, ("Process %s requested injection of signal %d\n",
257 procid_str_static(&src
), sig
));
260 kill(sys_getpid(), sig
);
262 #endif /* DEVELOPER */
265 struct child_pid
*prev
, *next
;
269 static struct child_pid
*children
;
270 static int num_children
;
272 static void add_child_pid(pid_t pid
)
274 struct child_pid
*child
;
276 if (lp_max_smbd_processes() == 0) {
277 /* Don't bother with the child list if we don't care anyway */
281 child
= SMB_MALLOC_P(struct child_pid
);
283 DEBUG(0, ("Could not add child struct -- malloc failed\n"));
287 DLIST_ADD(children
, child
);
291 static void remove_child_pid(pid_t pid
, bool unclean_shutdown
)
293 struct child_pid
*child
;
295 if (unclean_shutdown
) {
296 /* a child terminated uncleanly so tickle all processes to see
297 if they can grab any of the pending locks
299 DEBUG(3,(__location__
" Unclean shutdown of pid %u\n", pid
));
300 messaging_send_buf(smbd_messaging_context(), procid_self(),
301 MSG_SMB_BRL_VALIDATE
, NULL
, 0);
302 message_send_all(smbd_messaging_context(),
303 MSG_SMB_UNLOCK
, NULL
, 0, NULL
);
306 if (lp_max_smbd_processes() == 0) {
307 /* Don't bother with the child list if we don't care anyway */
311 for (child
= children
; child
!= NULL
; child
= child
->next
) {
312 if (child
->pid
== pid
) {
313 struct child_pid
*tmp
= child
;
314 DLIST_REMOVE(children
, child
);
321 DEBUG(0, ("Could not find child %d -- ignoring\n", (int)pid
));
324 /****************************************************************************
325 Have we reached the process limit ?
326 ****************************************************************************/
328 static bool allowable_number_of_smbd_processes(void)
330 int max_processes
= lp_max_smbd_processes();
335 return num_children
< max_processes
;
338 /****************************************************************************
339 Open the socket communication.
340 ****************************************************************************/
342 static bool open_sockets_smbd(bool is_daemon
, bool interactive
, const char *smb_ports
)
344 int num_interfaces
= iface_count();
346 int fd_listenset
[FD_SETSIZE
];
352 struct dns_reg_state
* dns_reg
= NULL
;
353 unsigned dns_port
= 0;
356 return open_sockets_inetd();
361 static int atexit_set
;
362 if(atexit_set
== 0) {
370 CatchSignal(SIGCLD
, sig_cld
);
372 FD_ZERO(&listen_set
);
374 /* use a reasonable default set of ports - listing on 445 and 139 */
376 ports
= lp_smb_ports();
377 if (!ports
|| !*ports
) {
378 ports
= smb_xstrdup(SMB_PORTS
);
380 ports
= smb_xstrdup(ports
);
383 ports
= smb_xstrdup(smb_ports
);
386 if (lp_interfaces() && lp_bind_interfaces_only()) {
387 /* We have been given an interfaces line, and been
388 told to only bind to those interfaces. Create a
389 socket per interface and bind to only these.
392 /* Now open a listen socket for each of the
394 for(i
= 0; i
< num_interfaces
; i
++) {
395 TALLOC_CTX
*frame
= NULL
;
396 const struct sockaddr_storage
*ifss
=
397 iface_n_sockaddr_storage(i
);
402 DEBUG(0,("open_sockets_smbd: "
403 "interface %d has NULL IP address !\n",
408 frame
= talloc_stackframe();
410 next_token_talloc(frame
,&ptr
, &tok
, " \t,");) {
411 unsigned port
= atoi(tok
);
412 if (port
== 0 || port
> 0xffff) {
416 /* Keep the first port for mDNS service
423 s
= fd_listenset
[num_sockets
] =
424 open_socket_in(SOCK_STREAM
,
426 num_sockets
== 0 ? 0 : 2,
433 /* ready to listen */
434 set_socket_options(s
,"SO_KEEPALIVE");
435 set_socket_options(s
,lp_socket_options());
437 /* Set server socket to
438 * non-blocking for the accept. */
439 set_blocking(s
,False
);
441 if (listen(s
, SMBD_LISTEN_BACKLOG
) == -1) {
442 DEBUG(0,("open_sockets_smbd: listen: "
443 "%s\n", strerror(errno
)));
448 FD_SET(s
,&listen_set
);
449 maxfd
= MAX( maxfd
, s
);
452 if (num_sockets
>= FD_SETSIZE
) {
453 DEBUG(0,("open_sockets_smbd: Too "
454 "many sockets to bind to\n"));
462 /* Just bind to 0.0.0.0 - accept connections
465 TALLOC_CTX
*frame
= talloc_stackframe();
468 const char *sock_addr
= lp_socket_address();
470 const char *sock_ptr
;
472 if (strequal(sock_addr
, "0.0.0.0") ||
473 strequal(sock_addr
, "::")) {
475 sock_addr
= "::,0.0.0.0";
477 sock_addr
= "0.0.0.0";
481 for (sock_ptr
=sock_addr
;
482 next_token_talloc(frame
, &sock_ptr
, &sock_tok
, " \t,"); ) {
483 for (ptr
=ports
; next_token_talloc(frame
, &ptr
, &tok
, " \t,"); ) {
484 struct sockaddr_storage ss
;
486 unsigned port
= atoi(tok
);
487 if (port
== 0 || port
> 0xffff) {
491 /* Keep the first port for mDNS service
498 /* open an incoming socket */
499 if (!interpret_string_addr(&ss
, sock_tok
,
500 AI_NUMERICHOST
|AI_PASSIVE
)) {
504 s
= open_socket_in(SOCK_STREAM
,
506 num_sockets
== 0 ? 0 : 2,
513 /* ready to listen */
514 set_socket_options(s
,"SO_KEEPALIVE");
515 set_socket_options(s
,lp_socket_options());
517 /* Set server socket to non-blocking
519 set_blocking(s
,False
);
521 if (listen(s
, SMBD_LISTEN_BACKLOG
) == -1) {
522 DEBUG(0,("open_sockets_smbd: "
530 fd_listenset
[num_sockets
] = s
;
531 FD_SET(s
,&listen_set
);
532 maxfd
= MAX( maxfd
, s
);
536 if (num_sockets
>= FD_SETSIZE
) {
537 DEBUG(0,("open_sockets_smbd: Too "
538 "many sockets to bind to\n"));
549 if (num_sockets
== 0) {
550 DEBUG(0,("open_sockets_smbd: No "
551 "sockets available to bind to.\n"));
555 /* Setup the main smbd so that we can get messages. Note that
556 do this after starting listening. This is needed as when in
557 clustered mode, ctdb won't allow us to start doing database
558 operations until it has gone thru a full startup, which
559 includes checking to see that smbd is listening. */
560 claim_connection(NULL
,"",
561 FLAG_MSG_GENERAL
|FLAG_MSG_SMBD
|FLAG_MSG_DBWRAP
);
563 /* Listen to messages */
565 messaging_register(smbd_messaging_context(), NULL
,
566 MSG_SMB_SAM_SYNC
, msg_sam_sync
);
567 messaging_register(smbd_messaging_context(), NULL
,
568 MSG_SHUTDOWN
, msg_exit_server
);
569 messaging_register(smbd_messaging_context(), NULL
,
570 MSG_SMB_FILE_RENAME
, msg_file_was_renamed
);
571 messaging_register(smbd_messaging_context(), NULL
,
572 MSG_SMB_CONF_UPDATED
, smb_conf_updated
);
573 messaging_register(smbd_messaging_context(), NULL
,
574 MSG_SMB_STAT_CACHE_DELETE
, smb_stat_cache_delete
);
575 brl_register_msgs(smbd_messaging_context());
577 #ifdef CLUSTER_SUPPORT
578 if (lp_clustering()) {
579 ctdbd_register_reconfigure(messaging_ctdbd_connection());
584 messaging_register(smbd_messaging_context(), NULL
,
585 MSG_SMB_INJECT_FAULT
, msg_inject_fault
);
588 /* now accept incoming connections - forking a new process
589 for each incoming connection */
590 DEBUG(2,("waiting for a connection\n"));
592 struct timeval now
, idle_timeout
;
596 /* Ensure we respond to PING and DEBUG messages from the main smbd. */
597 message_dispatch(smbd_messaging_context());
605 while ((pid
= sys_waitpid(-1, &status
, WNOHANG
)) > 0) {
606 bool unclean_shutdown
= False
;
608 /* If the child terminated normally, assume
609 it was an unclean shutdown unless the
612 if (WIFEXITED(status
)) {
613 unclean_shutdown
= WEXITSTATUS(status
);
615 /* If the child terminated due to a signal
616 we always assume it was unclean.
618 if (WIFSIGNALED(status
)) {
619 unclean_shutdown
= True
;
621 remove_child_pid(pid
, unclean_shutdown
);
625 idle_timeout
= timeval_zero();
627 memcpy((char *)&r_fds
, (char *)&listen_set
,
632 /* Kick off our mDNS registration. */
634 dns_register_smbd(&dns_reg
, dns_port
, &maxfd
,
635 &r_fds
, &idle_timeout
);
638 event_add_to_select_args(smbd_event_context(), &now
,
639 &r_fds
, &w_fds
, &idle_timeout
,
642 num
= sys_select(maxfd
+1,&r_fds
,&w_fds
,NULL
,
643 timeval_is_zero(&idle_timeout
) ?
644 NULL
: &idle_timeout
);
646 if (num
== -1 && errno
== EINTR
) {
648 exit_server_cleanly(NULL
);
651 /* check for sighup processing */
652 if (reload_after_sighup
) {
653 change_to_root_user();
654 DEBUG(1,("Reloading services after SIGHUP\n"));
655 reload_services(False
);
656 reload_after_sighup
= 0;
663 /* If the idle timeout fired and we don't have any connected
664 * users, exit gracefully. We should be running under a process
665 * controller that will restart us if necessry.
667 if (num
== 0 && count_all_current_connections() == 0) {
668 exit_server_cleanly("idle timeout");
671 /* process pending nDNS responses */
672 if (dns_register_smbd_reply(dns_reg
, &r_fds
, &idle_timeout
)) {
676 if (run_events(smbd_event_context(), num
, &r_fds
, &w_fds
)) {
680 /* check if we need to reload services */
681 check_reload(time(NULL
));
683 /* Find the sockets that are read-ready -
685 for( ; num
> 0; num
--) {
686 struct sockaddr addr
;
687 socklen_t in_addrlen
= sizeof(addr
);
691 for(i
= 0; i
< num_sockets
; i
++) {
692 if(FD_ISSET(fd_listenset
[i
],&r_fds
)) {
694 /* Clear this so we don't look
696 FD_CLR(fd_listenset
[i
],&r_fds
);
701 smbd_set_server_fd(accept(s
,&addr
,&in_addrlen
));
703 if (smbd_server_fd() == -1 && errno
== EINTR
)
706 if (smbd_server_fd() == -1) {
707 DEBUG(2,("open_sockets_smbd: accept: %s\n",
712 /* Ensure child is set to blocking mode */
713 set_blocking(smbd_server_fd(),True
);
715 if (smbd_server_fd() != -1 && interactive
)
718 if (allowable_number_of_smbd_processes() &&
719 smbd_server_fd() != -1 &&
720 ((child
= sys_fork())==0)) {
721 char remaddr
[INET6_ADDRSTRLEN
];
725 /* Stop zombies, the parent explicitly handles
726 * them, counting worker smbds. */
729 /* close the listening socket(s) */
730 for(i
= 0; i
< num_sockets
; i
++)
731 close(fd_listenset
[i
]);
733 /* close our mDNS daemon handle */
734 dns_register_close(&dns_reg
);
736 /* close our standard file
738 close_low_fds(False
);
741 set_socket_options(smbd_server_fd(),"SO_KEEPALIVE");
742 set_socket_options(smbd_server_fd(),
743 lp_socket_options());
745 /* this is needed so that we get decent entries
746 in smbstatus for port 445 connects */
747 set_remote_machine_name(get_peer_addr(smbd_server_fd(),
752 if (!reinit_after_fork(
753 smbd_messaging_context(), true)) {
754 DEBUG(0,("reinit_after_fork() failed\n"));
755 smb_panic("reinit_after_fork() failed");
760 /* The parent doesn't need this socket */
761 close(smbd_server_fd());
763 /* Sun May 6 18:56:14 2001 ackley@cs.unm.edu:
764 Clear the closed fd info out of server_fd --
765 and more importantly, out of client_fd in
766 util_sock.c, to avoid a possible
767 getpeername failure if we reopen the logs
768 and use %I in the filename.
771 smbd_set_server_fd(-1);
774 add_child_pid(child
);
777 /* Force parent to check log size after
778 * spawning child. Fix from
779 * klausr@ITAP.Physik.Uni-Stuttgart.De. The
780 * parent smbd will log to logserver.smb. It
781 * writes only two messages for each child
782 * started/finished. But each child writes,
783 * say, 50 messages also in logserver.smb,
784 * begining with the debug_count of the
785 * parent, before the child opens its own log
786 * file logserver.client. In a worst case
787 * scenario the size of logserver.smb would be
788 * checked after about 50*50=2500 messages
791 force_check_log_size();
796 /* NOTREACHED return True; */
799 /****************************************************************************
801 **************************************************************************/
802 void reload_printers(void)
805 int n_services
= lp_numservices();
806 int pnum
= lp_servicenumber(PRINTERS_NAME
);
811 /* remove stale printers */
812 for (snum
= 0; snum
< n_services
; snum
++) {
813 /* avoid removing PRINTERS_NAME or non-autoloaded printers */
814 if (snum
== pnum
|| !(lp_snum_ok(snum
) && lp_print_ok(snum
) &&
815 lp_autoloaded(snum
)))
818 pname
= lp_printername(snum
);
819 if (!pcap_printername_ok(pname
)) {
820 DEBUG(3, ("removing stale printer %s\n", pname
));
822 if (is_printer_published(NULL
, snum
, NULL
))
823 nt_printer_publish(NULL
, snum
, SPOOL_DS_UNPUBLISH
);
824 del_a_printer(pname
);
825 lp_killservice(snum
);
832 /****************************************************************************
833 Reload the services file.
834 **************************************************************************/
836 bool reload_services(bool test
)
841 char *fname
= lp_configfile();
842 if (file_exist(fname
, NULL
) &&
843 !strcsequal(fname
, get_dyn_CONFIGFILE())) {
844 set_dyn_CONFIGFILE(fname
);
851 if (test
&& !lp_file_list_changed())
854 lp_killunused(conn_snum_used
);
856 ret
= lp_load(get_dyn_CONFIGFILE(), False
, False
, True
, True
);
860 /* perhaps the config filename is now set */
862 reload_services(True
);
868 if (smbd_server_fd() != -1) {
869 set_socket_options(smbd_server_fd(),"SO_KEEPALIVE");
870 set_socket_options(smbd_server_fd(), lp_socket_options());
873 mangle_reset_cache();
876 /* this forces service parameters to be flushed */
877 set_current_service(NULL
,0,True
);
882 /****************************************************************************
884 ****************************************************************************/
886 /* Reasons for shutting down a server process. */
887 enum server_exit_reason
{ SERVER_EXIT_NORMAL
, SERVER_EXIT_ABNORMAL
};
889 static void exit_server_common(enum server_exit_reason how
,
890 const char *const reason
) NORETURN_ATTRIBUTE
;
892 static void exit_server_common(enum server_exit_reason how
,
893 const char *const reason
)
895 static int firsttime
=1;
902 change_to_root_user();
904 if (negprot_global_auth_context
) {
905 (negprot_global_auth_context
->free
)(&negprot_global_auth_context
);
908 had_open_conn
= conn_close_all();
910 invalidate_all_vuids();
912 /* 3 second timeout. */
913 print_notify_send_messages(smbd_messaging_context(), 3);
915 /* delete our entry in the connections database. */
916 yield_connection(NULL
,"");
918 respond_to_all_remaining_local_messages();
921 if (dcelogin_atmost_once
) {
927 /* Destroy Samba DMAPI session only if we are master smbd process */
929 if (!dmapi_destroy_session()) {
930 DEBUG(0,("Unable to close Samba DMAPI session\n"));
938 if (how
!= SERVER_EXIT_NORMAL
) {
939 int oldlevel
= DEBUGLEVEL
;
944 DEBUG(0,("Abnormal server exit: %s\n",
945 reason
? reason
: "no explanation provided"));
950 DEBUGLEVEL
= oldlevel
;
954 DEBUG(3,("Server exit (%s)\n",
955 (reason
? reason
: "normal exit")));
958 /* if we had any open SMB connections when we exited then we
959 need to tell the parent smbd so that it can trigger a retry
960 of any locks we may have been holding or open files we were
969 void exit_server(const char *const explanation
)
971 exit_server_common(SERVER_EXIT_ABNORMAL
, explanation
);
974 void exit_server_cleanly(const char *const explanation
)
976 exit_server_common(SERVER_EXIT_NORMAL
, explanation
);
979 void exit_server_fault(void)
981 exit_server("critical server fault");
985 /****************************************************************************
986 received when we should release a specific IP
987 ****************************************************************************/
988 static void release_ip(const char *ip
, void *priv
)
990 char addr
[INET6_ADDRSTRLEN
];
992 if (strcmp(client_socket_addr(get_client_fd(),addr
,sizeof(addr
)), ip
) == 0) {
993 /* we can't afford to do a clean exit - that involves
994 database writes, which would potentially mean we
995 are still running after the failover has finished -
996 we have to get rid of this process ID straight
998 DEBUG(0,("Got release IP message for our IP %s - exiting immediately\n",
1000 /* note we must exit with non-zero status so the unclean handler gets
1001 called in the parent, so that the brl database is tickled */
1006 static void msg_release_ip(struct messaging_context
*msg_ctx
, void *private_data
,
1007 uint32_t msg_type
, struct server_id server_id
, DATA_BLOB
*data
)
1009 release_ip((char *)data
->data
, NULL
);
1012 /****************************************************************************
1013 Initialise connect, service and file structs.
1014 ****************************************************************************/
1016 static bool init_structs(void )
1019 * Set the machine NETBIOS name if not already
1020 * set from the config file.
1031 init_rpc_pipe_hnd();
1035 if (!secrets_init())
1042 * Send keepalive packets to our client
1044 static bool keepalive_fn(const struct timeval
*now
, void *private_data
)
1046 if (!send_keepalive(smbd_server_fd())) {
1047 DEBUG( 2, ( "Keepalive failed - exiting.\n" ) );
1054 * Do the recurring check if we're idle
1056 static bool deadtime_fn(const struct timeval
*now
, void *private_data
)
1058 if ((conn_num_open() == 0)
1059 || (conn_idle_all(now
->tv_sec
))) {
1060 DEBUG( 2, ( "Closing idle connection\n" ) );
1061 messaging_send(smbd_messaging_context(), procid_self(),
1062 MSG_SHUTDOWN
, &data_blob_null
);
1070 /****************************************************************************
1072 ****************************************************************************/
1074 /* Declare prototype for build_options() to avoid having to run it through
1075 mkproto.h. Mixing $(builddir) and $(srcdir) source files in the current
1076 prototype generation system is too complicated. */
1078 extern void build_options(bool screen
);
1080 int main(int argc
,const char *argv
[])
1082 /* shall I run as a daemon */
1083 static bool is_daemon
= False
;
1084 static bool interactive
= False
;
1085 static bool Fork
= True
;
1086 static bool no_process_group
= False
;
1087 static bool log_stdout
= False
;
1088 static char *ports
= NULL
;
1089 static char *profile_level
= NULL
;
1092 bool print_build_options
= False
;
1097 OPT_NO_PROCESS_GROUP
,
1100 struct poptOption long_options
[] = {
1102 {"daemon", 'D', POPT_ARG_NONE
, NULL
, OPT_DAEMON
, "Become a daemon (default)" },
1103 {"interactive", 'i', POPT_ARG_NONE
, NULL
, OPT_INTERACTIVE
, "Run interactive (not a daemon)"},
1104 {"foreground", 'F', POPT_ARG_NONE
, NULL
, OPT_FORK
, "Run daemon in foreground (for daemontools, etc.)" },
1105 {"no-process-group", '\0', POPT_ARG_NONE
, NULL
, OPT_NO_PROCESS_GROUP
, "Don't create a new process group" },
1106 {"log-stdout", 'S', POPT_ARG_NONE
, NULL
, OPT_LOG_STDOUT
, "Log to stdout" },
1107 {"build-options", 'b', POPT_ARG_NONE
, NULL
, 'b', "Print build options" },
1108 {"port", 'p', POPT_ARG_STRING
, &ports
, 0, "Listen on the specified ports"},
1109 {"profiling-level", 'P', POPT_ARG_STRING
, &profile_level
, 0, "Set profiling level","PROFILE_LEVEL"},
1111 POPT_COMMON_DYNCONFIG
1114 TALLOC_CTX
*frame
= talloc_stackframe(); /* Setup tos. */
1118 #ifdef HAVE_SET_AUTH_PARAMETERS
1119 set_auth_parameters(argc
,argv
);
1122 pc
= poptGetContext("smbd", argc
, argv
, long_options
, 0);
1123 while((opt
= poptGetNextOpt(pc
)) != -1) {
1128 case OPT_INTERACTIVE
:
1134 case OPT_NO_PROCESS_GROUP
:
1135 no_process_group
= true;
1137 case OPT_LOG_STDOUT
:
1141 print_build_options
= True
;
1144 d_fprintf(stderr
, "\nInvalid option %s: %s\n\n",
1145 poptBadOption(pc
, 0), poptStrerror(opt
));
1146 poptPrintUsage(pc
, stderr
, 0);
1150 poptFreeContext(pc
);
1157 setup_logging(argv
[0],log_stdout
);
1159 if (print_build_options
) {
1160 build_options(True
); /* Display output to screen as well as debug */
1167 /* needed for SecureWare on SCO */
1173 set_remote_machine_name("smbd", False
);
1175 if (interactive
&& (DEBUGLEVEL
>= 9)) {
1176 talloc_enable_leak_report();
1179 if (log_stdout
&& Fork
) {
1180 DEBUG(0,("ERROR: Can't log to stdout (-S) unless daemon is in foreground (-F) or interactive (-i)\n"));
1184 /* we want to re-seed early to prevent time delays causing
1185 client problems at a later date. (tridge) */
1186 generate_random_buffer(NULL
, 0);
1188 /* make absolutely sure we run as root - to handle cases where people
1189 are crazy enough to have it setuid */
1191 gain_root_privilege();
1192 gain_root_group_privilege();
1194 fault_setup((void (*)(void *))exit_server_fault
);
1195 dump_core_setup("smbd");
1197 CatchSignal(SIGTERM
, SIGNAL_CAST sig_term
);
1198 CatchSignal(SIGHUP
,SIGNAL_CAST sig_hup
);
1200 /* we are never interested in SIGPIPE */
1201 BlockSignals(True
,SIGPIPE
);
1204 /* we are never interested in SIGFPE */
1205 BlockSignals(True
,SIGFPE
);
1208 #if defined(SIGUSR2)
1209 /* We are no longer interested in USR2 */
1210 BlockSignals(True
,SIGUSR2
);
1213 /* POSIX demands that signals are inherited. If the invoking process has
1214 * these signals masked, we will have problems, as we won't recieve them. */
1215 BlockSignals(False
, SIGHUP
);
1216 BlockSignals(False
, SIGUSR1
);
1217 BlockSignals(False
, SIGTERM
);
1219 /* we want total control over the permissions on created files,
1220 so set our umask to 0 */
1227 DEBUG(0,("smbd version %s started.\n", SAMBA_VERSION_STRING
));
1228 DEBUGADD(0,("%s\n", COPYRIGHT_STARTUP_MESSAGE
));
1230 DEBUG(2,("uid=%d gid=%d euid=%d egid=%d\n",
1231 (int)getuid(),(int)getgid(),(int)geteuid(),(int)getegid()));
1233 /* Output the build options to the debug log */
1234 build_options(False
);
1236 if (sizeof(uint16
) < 2 || sizeof(uint32
) < 4) {
1237 DEBUG(0,("ERROR: Samba is not configured correctly for the word size on your machine\n"));
1241 if (!lp_load_initial_only(get_dyn_CONFIGFILE())) {
1242 DEBUG(0, ("error opening config file\n"));
1246 if (smbd_messaging_context() == NULL
)
1249 if (!reload_services(False
))
1255 if (!profile_setup(smbd_messaging_context(), False
)) {
1256 DEBUG(0,("ERROR: failed to setup profiling\n"));
1259 if (profile_level
!= NULL
) {
1260 int pl
= atoi(profile_level
);
1261 struct server_id src
;
1263 DEBUG(1, ("setting profiling level: %s\n",profile_level
));
1265 set_profile_level(pl
, src
);
1269 DEBUG(3,( "loaded services\n"));
1271 if (!is_daemon
&& !is_a_socket(0)) {
1273 DEBUG(0,("standard input is not a socket, assuming -D option\n"));
1276 * Setting is_daemon here prevents us from eventually calling
1277 * the open_sockets_inetd()
1283 if (is_daemon
&& !interactive
) {
1284 DEBUG( 3, ( "Becoming a daemon.\n" ) );
1285 become_daemon(Fork
, no_process_group
);
1290 * If we're interactive we want to set our own process group for
1291 * signal management.
1293 if (interactive
&& !no_process_group
)
1294 setpgid( (pid_t
)0, (pid_t
)0);
1297 if (!directory_exist(lp_lockdir(), NULL
))
1298 mkdir(lp_lockdir(), 0755);
1301 pidfile_create("smbd");
1303 if (!reinit_after_fork(smbd_messaging_context(), false)) {
1304 DEBUG(0,("reinit_after_fork() failed\n"));
1308 /* Setup all the TDB's - including CLEAR_IF_FIRST tdb's. */
1310 if (smbd_memcache() == NULL
) {
1314 memcache_set_global(smbd_memcache());
1316 /* Initialise the password backed before the global_sam_sid
1317 to ensure that we fetch from ldap before we make a domain sid up */
1319 if(!initialize_password_db(False
, smbd_event_context()))
1322 if (!secrets_init()) {
1323 DEBUG(0, ("ERROR: smbd can not open secrets.tdb\n"));
1327 if(!get_global_sam_sid()) {
1328 DEBUG(0,("ERROR: Samba cannot create a SAM SID.\n"));
1332 if (!session_init())
1335 if (!connections_init(True
))
1338 if (!locking_init())
1343 if (!W_ERROR_IS_OK(registry_init_full()))
1347 if (!init_svcctl_db())
1351 if (!print_backend_init(smbd_messaging_context()))
1354 if (!init_guest_info()) {
1355 DEBUG(0,("ERROR: failed to setup guest info.\n"));
1359 /* only start the background queue daemon if we are
1360 running as a daemon -- bad things will happen if
1361 smbd is launched via inetd and we fork a copy of
1364 if (is_daemon
&& !interactive
1365 && lp_parm_bool(-1, "smbd", "backgroundqueue", true)) {
1366 start_background_queue();
1369 if (!open_sockets_smbd(is_daemon
, interactive
, ports
))
1373 * everything after this point is run after the fork()
1380 /* Possibly reload the services file. Only worth doing in
1381 * daemon mode. In inetd mode, we know we only just loaded this.
1384 reload_services(True
);
1387 if (!init_account_policy()) {
1388 DEBUG(0,("Could not open account policy tdb.\n"));
1392 if (*lp_rootdir()) {
1393 if (sys_chroot(lp_rootdir()) == 0)
1394 DEBUG(2,("Changed root to %s\n", lp_rootdir()));
1398 if (!init_oplocks(smbd_messaging_context()))
1401 /* Setup aio signal handler. */
1402 initialize_async_io_handler();
1404 /* register our message handlers */
1405 messaging_register(smbd_messaging_context(), NULL
,
1406 MSG_SMB_FORCE_TDIS
, msg_force_tdis
);
1407 messaging_register(smbd_messaging_context(), NULL
,
1408 MSG_SMB_RELEASE_IP
, msg_release_ip
);
1409 messaging_register(smbd_messaging_context(), NULL
,
1410 MSG_SMB_CLOSE_FILE
, msg_close_file
);
1412 if ((lp_keepalive() != 0)
1413 && !(event_add_idle(smbd_event_context(), NULL
,
1414 timeval_set(lp_keepalive(), 0),
1415 "keepalive", keepalive_fn
,
1417 DEBUG(0, ("Could not add keepalive event\n"));
1421 if (!(event_add_idle(smbd_event_context(), NULL
,
1422 timeval_set(IDLE_CLOSED_TIMEOUT
, 0),
1423 "deadtime", deadtime_fn
, NULL
))) {
1424 DEBUG(0, ("Could not add deadtime event\n"));
1428 #ifdef CLUSTER_SUPPORT
1430 if (lp_clustering()) {
1432 * We need to tell ctdb about our client's TCP
1433 * connection, so that for failover ctdbd can send
1434 * tickle acks, triggering a reconnection by the
1438 struct sockaddr_in srv
, clnt
;
1440 if (client_get_tcp_info(&srv
, &clnt
) == 0) {
1444 status
= ctdbd_register_ips(
1445 messaging_ctdbd_connection(),
1446 &srv
, &clnt
, release_ip
, NULL
);
1448 if (!NT_STATUS_IS_OK(status
)) {
1449 DEBUG(0, ("ctdbd_register_ips failed: %s\n",
1450 nt_errstr(status
)));
1454 DEBUG(0,("Unable to get tcp info for "
1455 "CTDB_CONTROL_TCP_CLIENT: %s\n",
1466 namecache_shutdown();
1468 exit_server_cleanly(NULL
);