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 struct event_context
*smbd_event_context(void)
50 if (!smbd_event_ctx
) {
51 smbd_event_ctx
= event_context_init(talloc_autofree_context());
53 if (!smbd_event_ctx
) {
54 smb_panic("Could not init smbd event context");
56 return smbd_event_ctx
;
59 struct messaging_context
*smbd_messaging_context(void)
61 if (smbd_msg_ctx
== NULL
) {
62 smbd_msg_ctx
= messaging_init(talloc_autofree_context(),
64 smbd_event_context());
66 if (smbd_msg_ctx
== NULL
) {
67 DEBUG(0, ("Could not init smbd messaging context.\n"));
72 struct memcache
*smbd_memcache(void)
74 if (!smbd_memcache_ctx
) {
75 smbd_memcache_ctx
= memcache_init(talloc_autofree_context(),
76 lp_max_stat_cache_size()*1024);
78 if (!smbd_memcache_ctx
) {
79 smb_panic("Could not init smbd memcache");
82 return smbd_memcache_ctx
;
85 /*******************************************************************
86 What to do when smb.conf is updated.
87 ********************************************************************/
89 static void smb_conf_updated(struct messaging_context
*msg
,
92 struct server_id server_id
,
95 DEBUG(10,("smb_conf_updated: Got message saying smb.conf was "
96 "updated. Reloading.\n"));
97 change_to_root_user();
98 reload_services(False
);
102 /*******************************************************************
103 Delete a statcache entry.
104 ********************************************************************/
106 static void smb_stat_cache_delete(struct messaging_context
*msg
,
109 struct server_id server_id
,
112 const char *name
= (const char *)data
->data
;
113 DEBUG(10,("smb_stat_cache_delete: delete name %s\n", name
));
114 stat_cache_delete(name
);
117 /****************************************************************************
118 Send a SIGTERM to our process group.
119 *****************************************************************************/
121 static void killkids(void)
123 if(am_parent
) kill(0,SIGTERM
);
126 /****************************************************************************
127 Process a sam sync message - not sure whether to do this here or
129 ****************************************************************************/
131 static void msg_sam_sync(struct messaging_context
*msg
,
134 struct server_id server_id
,
137 DEBUG(10, ("** sam sync message received, ignoring\n"));
140 static void msg_exit_server(struct messaging_context
*msg
,
143 struct server_id server_id
,
146 DEBUG(3, ("got a SHUTDOWN message\n"));
147 exit_server_cleanly(NULL
);
151 static void msg_inject_fault(struct messaging_context
*msg
,
154 struct server_id src
,
159 if (data
->length
!= sizeof(sig
)) {
161 DEBUG(0, ("Process %s sent bogus signal injection request\n",
162 procid_str_static(&src
)));
166 sig
= *(int *)data
->data
;
168 exit_server("internal error injected");
173 DEBUG(0, ("Process %s requested injection of signal %d (%s)\n",
174 procid_str_static(&src
), sig
, strsignal(sig
)));
176 DEBUG(0, ("Process %s requested injection of signal %d\n",
177 procid_str_static(&src
), sig
));
180 kill(sys_getpid(), sig
);
182 #endif /* DEVELOPER */
185 * Parent smbd process sets its own debug level first and then
186 * sends a message to all the smbd children to adjust their debug
187 * level to that of the parent.
190 static void smbd_msg_debug(struct messaging_context
*msg_ctx
,
193 struct server_id server_id
,
196 struct child_pid
*child
;
198 debug_message(msg_ctx
, private_data
, MSG_DEBUG
, server_id
, data
);
200 for (child
= children
; child
!= NULL
; child
= child
->next
) {
201 messaging_send_buf(msg_ctx
, pid_to_procid(child
->pid
),
204 strlen((char *) data
->data
) + 1);
208 static void add_child_pid(pid_t pid
)
210 struct child_pid
*child
;
212 child
= SMB_MALLOC_P(struct child_pid
);
214 DEBUG(0, ("Could not add child struct -- malloc failed\n"));
218 DLIST_ADD(children
, child
);
223 at most every smbd:cleanuptime seconds (default 20), we scan the BRL
224 and locking database for entries to cleanup. As a side effect this
225 also cleans up dead entries in the connections database (due to the
226 traversal in message_send_all()
228 Using a timer for this prevents a flood of traversals when a large
229 number of clients disconnect at the same time (perhaps due to a
233 static void cleanup_timeout_fn(struct event_context
*event_ctx
,
234 struct timed_event
*te
,
238 struct timed_event
**cleanup_te
= (struct timed_event
**)private_data
;
240 DEBUG(1,("Cleaning up brl and lock database after unclean shutdown\n"));
241 message_send_all(smbd_messaging_context(), MSG_SMB_UNLOCK
, NULL
, 0, NULL
);
242 messaging_send_buf(smbd_messaging_context(), procid_self(),
243 MSG_SMB_BRL_VALIDATE
, NULL
, 0);
244 /* mark the cleanup as having been done */
245 (*cleanup_te
) = NULL
;
248 static void remove_child_pid(pid_t pid
, bool unclean_shutdown
)
250 struct child_pid
*child
;
251 static struct timed_event
*cleanup_te
;
253 if (unclean_shutdown
) {
254 /* a child terminated uncleanly so tickle all
255 processes to see if they can grab any of the
258 DEBUG(3,(__location__
" Unclean shutdown of pid %u\n",
261 /* call the cleanup timer, but not too often */
262 int cleanup_time
= lp_parm_int(-1, "smbd", "cleanuptime", 20);
263 cleanup_te
= event_add_timed(smbd_event_context(), NULL
,
264 timeval_current_ofs(cleanup_time
, 0),
267 DEBUG(1,("Scheduled cleanup of brl and lock database after unclean shutdown\n"));
271 for (child
= children
; child
!= NULL
; child
= child
->next
) {
272 if (child
->pid
== pid
) {
273 struct child_pid
*tmp
= child
;
274 DLIST_REMOVE(children
, child
);
281 DEBUG(0, ("Could not find child %d -- ignoring\n", (int)pid
));
284 /****************************************************************************
285 Have we reached the process limit ?
286 ****************************************************************************/
288 static bool allowable_number_of_smbd_processes(void)
290 int max_processes
= lp_max_smbd_processes();
295 return num_children
< max_processes
;
298 static void smbd_sig_chld_handler(struct tevent_context
*ev
,
299 struct tevent_signal
*se
,
308 while ((pid
= sys_waitpid(-1, &status
, WNOHANG
)) > 0) {
309 bool unclean_shutdown
= False
;
311 /* If the child terminated normally, assume
312 it was an unclean shutdown unless the
315 if (WIFEXITED(status
)) {
316 unclean_shutdown
= WEXITSTATUS(status
);
318 /* If the child terminated due to a signal
319 we always assume it was unclean.
321 if (WIFSIGNALED(status
)) {
322 unclean_shutdown
= True
;
324 remove_child_pid(pid
, unclean_shutdown
);
328 static void smbd_setup_sig_chld_handler(void)
330 struct tevent_signal
*se
;
332 se
= tevent_add_signal(smbd_event_context(),
333 smbd_event_context(),
335 smbd_sig_chld_handler
,
338 exit_server("failed to setup SIGCHLD handler");
342 struct smbd_open_socket
;
344 struct smbd_parent_context
{
347 /* the list of listening sockets */
348 struct smbd_open_socket
*sockets
;
351 struct smbd_open_socket
{
352 struct smbd_open_socket
*prev
, *next
;
353 struct smbd_parent_context
*parent
;
355 struct tevent_fd
*fde
;
358 static void smbd_open_socket_close_fn(struct tevent_context
*ev
,
359 struct tevent_fd
*fde
,
363 /* this might be the socket_wrapper swrap_close() */
367 static void smbd_accept_connection(struct tevent_context
*ev
,
368 struct tevent_fd
*fde
,
372 struct smbd_open_socket
*s
= talloc_get_type_abort(private_data
,
373 struct smbd_open_socket
);
374 struct sockaddr_storage addr
;
375 socklen_t in_addrlen
= sizeof(addr
);
378 smbd_set_server_fd(accept(s
->fd
,(struct sockaddr
*)&addr
,&in_addrlen
));
380 if (smbd_server_fd() == -1 && errno
== EINTR
)
383 if (smbd_server_fd() == -1) {
384 DEBUG(0,("open_sockets_smbd: accept: %s\n",
389 if (s
->parent
->interactive
) {
391 exit_server_cleanly("end of interactive mode");
395 if (!allowable_number_of_smbd_processes()) {
396 close(smbd_server_fd());
397 smbd_set_server_fd(-1);
403 NTSTATUS status
= NT_STATUS_OK
;
407 /* Stop zombies, the parent explicitly handles
408 * them, counting worker smbds. */
411 /* close our standard file
413 close_low_fds(False
);
416 * Can't use TALLOC_FREE here. Nulling out the argument to it
417 * would overwrite memory we've just freed.
419 talloc_free(s
->parent
);
422 status
= reinit_after_fork(smbd_messaging_context(),
423 smbd_event_context(), true);
424 if (!NT_STATUS_IS_OK(status
)) {
425 if (NT_STATUS_EQUAL(status
,
426 NT_STATUS_TOO_MANY_OPENED_FILES
)) {
427 DEBUG(0,("child process cannot initialize "
428 "because too many files are open\n"));
431 DEBUG(0,("reinit_after_fork() failed\n"));
432 smb_panic("reinit_after_fork() failed");
435 smbd_setup_sig_term_handler();
436 smbd_setup_sig_hup_handler();
440 exit_server_cleanly("end of child");
442 } else if (pid
< 0) {
443 DEBUG(0,("smbd_accept_connection: sys_fork() failed: %s\n",
447 /* The parent doesn't need this socket */
448 close(smbd_server_fd());
450 /* Sun May 6 18:56:14 2001 ackley@cs.unm.edu:
451 Clear the closed fd info out of server_fd --
452 and more importantly, out of client_fd in
453 util_sock.c, to avoid a possible
454 getpeername failure if we reopen the logs
455 and use %I in the filename.
458 smbd_set_server_fd(-1);
464 /* Force parent to check log size after
465 * spawning child. Fix from
466 * klausr@ITAP.Physik.Uni-Stuttgart.De. The
467 * parent smbd will log to logserver.smb. It
468 * writes only two messages for each child
469 * started/finished. But each child writes,
470 * say, 50 messages also in logserver.smb,
471 * begining with the debug_count of the
472 * parent, before the child opens its own log
473 * file logserver.client. In a worst case
474 * scenario the size of logserver.smb would be
475 * checked after about 50*50=2500 messages
478 force_check_log_size();
481 static bool smbd_open_one_socket(struct smbd_parent_context
*parent
,
482 const struct sockaddr_storage
*ifss
,
485 struct smbd_open_socket
*s
;
487 s
= talloc(parent
, struct smbd_open_socket
);
493 s
->fd
= open_socket_in(SOCK_STREAM
,
495 parent
->sockets
== NULL
? 0 : 2,
499 DEBUG(0,("smbd_open_once_socket: open_socket_in: "
500 "%s\n", strerror(errno
)));
503 * We ignore an error here, as we've done before
508 /* ready to listen */
509 set_socket_options(s
->fd
, "SO_KEEPALIVE");
510 set_socket_options(s
->fd
, lp_socket_options());
512 /* Set server socket to
513 * non-blocking for the accept. */
514 set_blocking(s
->fd
, False
);
516 if (listen(s
->fd
, SMBD_LISTEN_BACKLOG
) == -1) {
517 DEBUG(0,("open_sockets_smbd: listen: "
518 "%s\n", strerror(errno
)));
524 s
->fde
= tevent_add_fd(smbd_event_context(),
526 s
->fd
, TEVENT_FD_READ
,
527 smbd_accept_connection
,
530 DEBUG(0,("open_sockets_smbd: "
531 "tevent_add_fd: %s\n",
537 tevent_fd_set_close_fn(s
->fde
, smbd_open_socket_close_fn
);
539 DLIST_ADD_END(parent
->sockets
, s
, struct smbd_open_socket
*);
544 static bool parent_housekeeping_fn(const struct timeval
*now
, void *private_data
)
546 DEBUG(5, ("houskeeping\n"));
547 /* check if we need to reload services */
548 check_reload(time(NULL
));
552 /****************************************************************************
553 Open the socket communication.
554 ****************************************************************************/
556 static bool open_sockets_smbd(struct smbd_parent_context
*parent
,
557 const char *smb_ports
)
559 int num_interfaces
= iface_count();
562 unsigned dns_port
= 0;
569 smbd_setup_sig_chld_handler();
571 /* use a reasonable default set of ports - listing on 445 and 139 */
573 ports
= lp_smb_ports();
574 if (!ports
|| !*ports
) {
575 ports
= talloc_strdup(talloc_tos(), SMB_PORTS
);
577 ports
= talloc_strdup(talloc_tos(), ports
);
580 ports
= talloc_strdup(talloc_tos(), smb_ports
);
583 if (lp_interfaces() && lp_bind_interfaces_only()) {
584 /* We have been given an interfaces line, and been
585 told to only bind to those interfaces. Create a
586 socket per interface and bind to only these.
589 /* Now open a listen socket for each of the
591 for(i
= 0; i
< num_interfaces
; i
++) {
592 const struct sockaddr_storage
*ifss
=
593 iface_n_sockaddr_storage(i
);
598 DEBUG(0,("open_sockets_smbd: "
599 "interface %d has NULL IP address !\n",
605 next_token_talloc(talloc_tos(),&ptr
, &tok
, " \t,");) {
606 unsigned port
= atoi(tok
);
607 if (port
== 0 || port
> 0xffff) {
611 if (!smbd_open_one_socket(parent
, ifss
, port
)) {
617 /* Just bind to 0.0.0.0 - accept connections
622 const char *sock_addr
= lp_socket_address();
624 const char *sock_ptr
;
626 if (strequal(sock_addr
, "0.0.0.0") ||
627 strequal(sock_addr
, "::")) {
629 sock_addr
= "::,0.0.0.0";
631 sock_addr
= "0.0.0.0";
635 for (sock_ptr
=sock_addr
;
636 next_token_talloc(talloc_tos(), &sock_ptr
, &sock_tok
, " \t,"); ) {
637 for (ptr
=ports
; next_token_talloc(talloc_tos(), &ptr
, &tok
, " \t,"); ) {
638 struct sockaddr_storage ss
;
640 unsigned port
= atoi(tok
);
641 if (port
== 0 || port
> 0xffff) {
645 /* Keep the first port for mDNS service
652 /* open an incoming socket */
653 if (!interpret_string_addr(&ss
, sock_tok
,
654 AI_NUMERICHOST
|AI_PASSIVE
)) {
658 if (!smbd_open_one_socket(parent
, &ss
, port
)) {
665 if (parent
->sockets
== NULL
) {
666 DEBUG(0,("open_sockets_smbd: No "
667 "sockets available to bind to.\n"));
671 /* Setup the main smbd so that we can get messages. Note that
672 do this after starting listening. This is needed as when in
673 clustered mode, ctdb won't allow us to start doing database
674 operations until it has gone thru a full startup, which
675 includes checking to see that smbd is listening. */
676 claim_connection(NULL
,"",
677 FLAG_MSG_GENERAL
|FLAG_MSG_SMBD
|FLAG_MSG_DBWRAP
);
679 if (!(event_add_idle(smbd_event_context(), NULL
,
680 timeval_set(SMBD_HOUSEKEEPING_INTERVAL
, 0),
681 "parent_housekeeping", parent_housekeeping_fn
,
683 DEBUG(0, ("Could not add housekeeping event\n"));
687 /* Listen to messages */
689 messaging_register(smbd_messaging_context(), NULL
,
690 MSG_SMB_SAM_SYNC
, msg_sam_sync
);
691 messaging_register(smbd_messaging_context(), NULL
,
692 MSG_SHUTDOWN
, msg_exit_server
);
693 messaging_register(smbd_messaging_context(), NULL
,
694 MSG_SMB_FILE_RENAME
, msg_file_was_renamed
);
695 messaging_register(smbd_messaging_context(), NULL
,
696 MSG_SMB_CONF_UPDATED
, smb_conf_updated
);
697 messaging_register(smbd_messaging_context(), NULL
,
698 MSG_SMB_STAT_CACHE_DELETE
, smb_stat_cache_delete
);
699 messaging_register(smbd_messaging_context(), NULL
,
700 MSG_DEBUG
, smbd_msg_debug
);
701 brl_register_msgs(smbd_messaging_context());
703 #ifdef CLUSTER_SUPPORT
704 if (lp_clustering()) {
705 ctdbd_register_reconfigure(messaging_ctdbd_connection());
710 messaging_register(smbd_messaging_context(), NULL
,
711 MSG_SMB_INJECT_FAULT
, msg_inject_fault
);
715 #ifdef WITH_DNSSD_SUPPORT
716 smbd_setup_mdns_registration(smbd_event_context(),
719 #ifdef WITH_AVAHI_SUPPORT
722 avahi_conn
= avahi_start_register(
723 smbd_event_context(), smbd_event_context(), dns_port
);
724 if (avahi_conn
== NULL
) {
725 DEBUG(10, ("avahi_start_register failed\n"));
733 static void smbd_parent_loop(struct smbd_parent_context
*parent
)
735 /* now accept incoming connections - forking a new process
736 for each incoming connection */
737 DEBUG(2,("waiting for connections\n"));
740 TALLOC_CTX
*frame
= talloc_stackframe();
742 ret
= tevent_loop_once(smbd_event_context());
744 exit_server_cleanly("tevent_loop_once() error");
750 /* NOTREACHED return True; */
753 /****************************************************************************
755 **************************************************************************/
756 void reload_printers(void)
759 int n_services
= lp_numservices();
760 int pnum
= lp_servicenumber(PRINTERS_NAME
);
765 /* remove stale printers */
766 for (snum
= 0; snum
< n_services
; snum
++) {
767 /* avoid removing PRINTERS_NAME or non-autoloaded printers */
768 if (snum
== pnum
|| !(lp_snum_ok(snum
) && lp_print_ok(snum
) &&
769 lp_autoloaded(snum
)))
772 pname
= lp_printername(snum
);
773 if (!pcap_printername_ok(pname
)) {
774 DEBUG(3, ("removing stale printer %s\n", pname
));
776 if (is_printer_published(NULL
, snum
, NULL
))
777 nt_printer_publish(NULL
, snum
, DSPRINT_UNPUBLISH
);
778 del_a_printer(pname
);
779 lp_killservice(snum
);
786 /****************************************************************************
787 Reload the services file.
788 **************************************************************************/
790 bool reload_services(bool test
)
795 char *fname
= lp_configfile();
796 if (file_exist(fname
) &&
797 !strcsequal(fname
, get_dyn_CONFIGFILE())) {
798 set_dyn_CONFIGFILE(fname
);
805 if (test
&& !lp_file_list_changed())
808 lp_killunused(conn_snum_used
);
810 ret
= lp_load(get_dyn_CONFIGFILE(), False
, False
, True
, True
);
814 /* perhaps the config filename is now set */
816 reload_services(True
);
822 if (smbd_server_fd() != -1) {
823 set_socket_options(smbd_server_fd(),"SO_KEEPALIVE");
824 set_socket_options(smbd_server_fd(), lp_socket_options());
827 mangle_reset_cache();
830 /* this forces service parameters to be flushed */
831 set_current_service(NULL
,0,True
);
836 /****************************************************************************
838 ****************************************************************************/
840 /* Reasons for shutting down a server process. */
841 enum server_exit_reason
{ SERVER_EXIT_NORMAL
, SERVER_EXIT_ABNORMAL
};
843 static void exit_server_common(enum server_exit_reason how
,
844 const char *const reason
) _NORETURN_
;
846 static void exit_server_common(enum server_exit_reason how
,
847 const char *const reason
)
849 bool had_open_conn
= false;
850 struct smbd_server_connection
*sconn
= smbd_server_conn
;
854 exit_firsttime
= false;
856 change_to_root_user();
858 if (sconn
&& sconn
->smb1
.negprot
.auth_context
) {
859 struct auth_context
*a
= sconn
->smb1
.negprot
.auth_context
;
860 a
->free(&sconn
->smb1
.negprot
.auth_context
);
864 had_open_conn
= conn_close_all(sconn
);
865 invalidate_all_vuids(sconn
);
868 /* 3 second timeout. */
869 print_notify_send_messages(smbd_messaging_context(), 3);
871 /* delete our entry in the connections database. */
872 yield_connection(NULL
,"");
875 if (dcelogin_atmost_once
) {
881 /* Destroy Samba DMAPI session only if we are master smbd process */
883 if (!dmapi_destroy_session()) {
884 DEBUG(0,("Unable to close Samba DMAPI session\n"));
893 * we need to force the order of freeing the following,
894 * because smbd_msg_ctx is not a talloc child of smbd_server_conn.
897 TALLOC_FREE(smbd_server_conn
);
898 TALLOC_FREE(smbd_msg_ctx
);
899 TALLOC_FREE(smbd_event_ctx
);
901 if (how
!= SERVER_EXIT_NORMAL
) {
902 int oldlevel
= DEBUGLEVEL
;
907 DEBUG(0,("Abnormal server exit: %s\n",
908 reason
? reason
: "no explanation provided"));
913 DEBUGLEVEL
= oldlevel
;
917 DEBUG(3,("Server exit (%s)\n",
918 (reason
? reason
: "normal exit")));
922 gencache_stabilize();
925 /* if we had any open SMB connections when we exited then we
926 need to tell the parent smbd so that it can trigger a retry
927 of any locks we may have been holding or open files we were
936 void exit_server(const char *const explanation
)
938 exit_server_common(SERVER_EXIT_ABNORMAL
, explanation
);
941 void exit_server_cleanly(const char *const explanation
)
943 exit_server_common(SERVER_EXIT_NORMAL
, explanation
);
946 void exit_server_fault(void)
948 exit_server("critical server fault");
951 /****************************************************************************
952 Initialise connect, service and file structs.
953 ****************************************************************************/
955 static bool init_structs(void )
958 * Set the machine NETBIOS name if not already
959 * set from the config file.
973 /****************************************************************************
975 ****************************************************************************/
977 /* Declare prototype for build_options() to avoid having to run it through
978 mkproto.h. Mixing $(builddir) and $(srcdir) source files in the current
979 prototype generation system is too complicated. */
981 extern void build_options(bool screen
);
983 int main(int argc
,const char *argv
[])
985 /* shall I run as a daemon */
986 bool is_daemon
= false;
987 bool interactive
= false;
989 bool no_process_group
= false;
990 bool log_stdout
= false;
992 char *profile_level
= NULL
;
995 bool print_build_options
= False
;
1000 OPT_NO_PROCESS_GROUP
,
1003 struct poptOption long_options
[] = {
1005 {"daemon", 'D', POPT_ARG_NONE
, NULL
, OPT_DAEMON
, "Become a daemon (default)" },
1006 {"interactive", 'i', POPT_ARG_NONE
, NULL
, OPT_INTERACTIVE
, "Run interactive (not a daemon)"},
1007 {"foreground", 'F', POPT_ARG_NONE
, NULL
, OPT_FORK
, "Run daemon in foreground (for daemontools, etc.)" },
1008 {"no-process-group", '\0', POPT_ARG_NONE
, NULL
, OPT_NO_PROCESS_GROUP
, "Don't create a new process group" },
1009 {"log-stdout", 'S', POPT_ARG_NONE
, NULL
, OPT_LOG_STDOUT
, "Log to stdout" },
1010 {"build-options", 'b', POPT_ARG_NONE
, NULL
, 'b', "Print build options" },
1011 {"port", 'p', POPT_ARG_STRING
, &ports
, 0, "Listen on the specified ports"},
1012 {"profiling-level", 'P', POPT_ARG_STRING
, &profile_level
, 0, "Set profiling level","PROFILE_LEVEL"},
1014 POPT_COMMON_DYNCONFIG
1017 struct smbd_parent_context
*parent
= NULL
;
1018 TALLOC_CTX
*frame
= talloc_stackframe(); /* Setup tos. */
1020 smbd_init_globals();
1024 #ifdef HAVE_SET_AUTH_PARAMETERS
1025 set_auth_parameters(argc
,argv
);
1028 pc
= poptGetContext("smbd", argc
, argv
, long_options
, 0);
1029 while((opt
= poptGetNextOpt(pc
)) != -1) {
1034 case OPT_INTERACTIVE
:
1040 case OPT_NO_PROCESS_GROUP
:
1041 no_process_group
= true;
1043 case OPT_LOG_STDOUT
:
1047 print_build_options
= True
;
1050 d_fprintf(stderr
, "\nInvalid option %s: %s\n\n",
1051 poptBadOption(pc
, 0), poptStrerror(opt
));
1052 poptPrintUsage(pc
, stderr
, 0);
1056 poptFreeContext(pc
);
1063 setup_logging(argv
[0],log_stdout
);
1065 if (print_build_options
) {
1066 build_options(True
); /* Display output to screen as well as debug */
1073 /* needed for SecureWare on SCO */
1079 set_remote_machine_name("smbd", False
);
1081 if (interactive
&& (DEBUGLEVEL
>= 9)) {
1082 talloc_enable_leak_report();
1085 if (log_stdout
&& Fork
) {
1086 DEBUG(0,("ERROR: Can't log to stdout (-S) unless daemon is in foreground (-F) or interactive (-i)\n"));
1090 /* we want to re-seed early to prevent time delays causing
1091 client problems at a later date. (tridge) */
1092 generate_random_buffer(NULL
, 0);
1094 /* make absolutely sure we run as root - to handle cases where people
1095 are crazy enough to have it setuid */
1097 gain_root_privilege();
1098 gain_root_group_privilege();
1100 fault_setup((void (*)(void *))exit_server_fault
);
1101 dump_core_setup("smbd");
1103 /* we are never interested in SIGPIPE */
1104 BlockSignals(True
,SIGPIPE
);
1107 /* we are never interested in SIGFPE */
1108 BlockSignals(True
,SIGFPE
);
1111 #if defined(SIGUSR2)
1112 /* We are no longer interested in USR2 */
1113 BlockSignals(True
,SIGUSR2
);
1116 /* POSIX demands that signals are inherited. If the invoking process has
1117 * these signals masked, we will have problems, as we won't recieve them. */
1118 BlockSignals(False
, SIGHUP
);
1119 BlockSignals(False
, SIGUSR1
);
1120 BlockSignals(False
, SIGTERM
);
1122 /* Ensure we leave no zombies until we
1123 * correctly set up child handling below. */
1127 /* we want total control over the permissions on created files,
1128 so set our umask to 0 */
1135 DEBUG(0,("smbd version %s started.\n", samba_version_string()));
1136 DEBUGADD(0,("%s\n", COPYRIGHT_STARTUP_MESSAGE
));
1138 DEBUG(2,("uid=%d gid=%d euid=%d egid=%d\n",
1139 (int)getuid(),(int)getgid(),(int)geteuid(),(int)getegid()));
1141 /* Output the build options to the debug log */
1142 build_options(False
);
1144 if (sizeof(uint16
) < 2 || sizeof(uint32
) < 4) {
1145 DEBUG(0,("ERROR: Samba is not configured correctly for the word size on your machine\n"));
1149 if (!lp_load_initial_only(get_dyn_CONFIGFILE())) {
1150 DEBUG(0, ("error opening config file\n"));
1154 if (smbd_messaging_context() == NULL
)
1157 if (!reload_services(False
))
1163 if (!profile_setup(smbd_messaging_context(), False
)) {
1164 DEBUG(0,("ERROR: failed to setup profiling\n"));
1167 if (profile_level
!= NULL
) {
1168 int pl
= atoi(profile_level
);
1169 struct server_id src
;
1171 DEBUG(1, ("setting profiling level: %s\n",profile_level
));
1173 set_profile_level(pl
, src
);
1177 DEBUG(3,( "loaded services\n"));
1179 if (!is_daemon
&& !is_a_socket(0)) {
1181 DEBUG(0,("standard input is not a socket, assuming -D option\n"));
1184 * Setting is_daemon here prevents us from eventually calling
1185 * the open_sockets_inetd()
1191 if (is_daemon
&& !interactive
) {
1192 DEBUG( 3, ( "Becoming a daemon.\n" ) );
1193 become_daemon(Fork
, no_process_group
);
1198 * If we're interactive we want to set our own process group for
1199 * signal management.
1201 if (interactive
&& !no_process_group
)
1202 setpgid( (pid_t
)0, (pid_t
)0);
1205 if (!directory_exist(lp_lockdir()))
1206 mkdir(lp_lockdir(), 0755);
1209 pidfile_create("smbd");
1211 if (!NT_STATUS_IS_OK(reinit_after_fork(smbd_messaging_context(),
1212 smbd_event_context(), false))) {
1213 DEBUG(0,("reinit_after_fork() failed\n"));
1217 smbd_setup_sig_term_handler();
1218 smbd_setup_sig_hup_handler();
1220 /* Setup all the TDB's - including CLEAR_IF_FIRST tdb's. */
1222 if (smbd_memcache() == NULL
) {
1226 memcache_set_global(smbd_memcache());
1228 /* Initialise the password backed before the global_sam_sid
1229 to ensure that we fetch from ldap before we make a domain sid up */
1231 if(!initialize_password_db(False
, smbd_event_context()))
1234 if (!secrets_init()) {
1235 DEBUG(0, ("ERROR: smbd can not open secrets.tdb\n"));
1239 if(!get_global_sam_sid()) {
1240 DEBUG(0,("ERROR: Samba cannot create a SAM SID.\n"));
1244 if (!session_init())
1247 if (!connections_init(True
))
1250 if (!locking_init())
1255 if (!W_ERROR_IS_OK(registry_init_full()))
1259 if (!init_svcctl_db())
1263 if (!print_backend_init(smbd_messaging_context()))
1266 if (!init_guest_info()) {
1267 DEBUG(0,("ERROR: failed to setup guest info.\n"));
1271 /* Open the share_info.tdb here, so we don't have to open
1272 after the fork on every single connection. This is a small
1273 performance improvment and reduces the total number of system
1275 if (!share_info_db_init()) {
1276 DEBUG(0,("ERROR: failed to load share info db.\n"));
1280 /* only start the background queue daemon if we are
1281 running as a daemon -- bad things will happen if
1282 smbd is launched via inetd and we fork a copy of
1285 if (is_daemon
&& !interactive
1286 && lp_parm_bool(-1, "smbd", "backgroundqueue", true)) {
1287 start_background_queue();
1294 /* Started from inetd. fd 0 is the socket. */
1295 /* We will abort gracefully when the client or remote system
1297 smbd_set_server_fd(dup(0));
1299 /* close our standard file descriptors */
1300 close_low_fds(False
); /* Don't close stderr */
1307 smbd_setup_sig_chld_handler();
1311 exit_server_cleanly(NULL
);
1315 parent
= talloc_zero(smbd_event_context(), struct smbd_parent_context
);
1317 exit_server("talloc(struct smbd_parent_context) failed");
1319 parent
->interactive
= interactive
;
1321 if (!open_sockets_smbd(parent
, ports
))
1322 exit_server("open_sockets_smbd() failed");
1325 /* make sure we always have a valid stackframe */
1326 frame
= talloc_stackframe();
1328 smbd_parent_loop(parent
);
1330 exit_server_cleanly(NULL
);