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 "popt_common.h"
26 #include "smbd/globals.h"
27 #include "librpc/gen_ndr/messaging.h"
29 #include "registry/reg_init_full.h"
30 #include "libcli/auth/schannel.h"
33 #include "ctdbd_conn.h"
34 #include "printing/printer_list.h"
36 #include "../librpc/gen_ndr/srv_dfs.h"
37 #include "../librpc/gen_ndr/srv_dssetup.h"
38 #include "../librpc/gen_ndr/srv_echo.h"
39 #include "../librpc/gen_ndr/srv_eventlog.h"
40 #include "../librpc/gen_ndr/srv_initshutdown.h"
41 #include "../librpc/gen_ndr/srv_lsa.h"
42 #include "../librpc/gen_ndr/srv_netlogon.h"
43 #include "../librpc/gen_ndr/srv_ntsvcs.h"
44 #include "../librpc/gen_ndr/srv_samr.h"
45 #include "../librpc/gen_ndr/srv_spoolss.h"
46 #include "../librpc/gen_ndr/srv_srvsvc.h"
47 #include "../librpc/gen_ndr/srv_svcctl.h"
48 #include "../librpc/gen_ndr/srv_winreg.h"
49 #include "../librpc/gen_ndr/srv_wkssvc.h"
51 #include "printing/nt_printing_migrate.h"
54 extern int dcelogin_atmost_once
;
57 static void smbd_set_server_fd(int fd
)
59 struct smbd_server_connection
*sconn
= smbd_server_conn
;
60 char addr
[INET6_ADDRSTRLEN
];
66 * Initialize sconn->client_id: If we can't find the client's
67 * name, default to its address.
70 client_addr(fd
, sconn
->client_id
.addr
, sizeof(sconn
->client_id
.addr
));
72 name
= client_name(sconn
->sock
);
73 if (strcmp(name
, "UNKNOWN") != 0) {
74 name
= talloc_strdup(sconn
, name
);
78 sconn
->client_id
.name
=
79 (name
!= NULL
) ? name
: sconn
->client_id
.addr
;
81 sub_set_socket_ids(sconn
->client_id
.addr
, sconn
->client_id
.name
,
82 client_socket_addr(sconn
->sock
, addr
,
86 struct event_context
*smbd_event_context(void)
88 return server_event_context();
91 /*******************************************************************
92 What to do when smb.conf is updated.
93 ********************************************************************/
95 static void smb_conf_updated(struct messaging_context
*msg
,
98 struct server_id server_id
,
101 DEBUG(10,("smb_conf_updated: Got message saying smb.conf was "
102 "updated. Reloading.\n"));
103 change_to_root_user();
104 reload_services(msg
, smbd_server_conn
->sock
, False
);
106 pcap_cache_reload(server_event_context(), msg
,
107 &reload_pcap_change_notify
);
111 /*******************************************************************
112 What to do when printcap is updated.
113 ********************************************************************/
115 static void smb_pcap_updated(struct messaging_context
*msg
,
118 struct server_id server_id
,
121 DEBUG(10,("Got message saying pcap was updated. Reloading.\n"));
122 change_to_root_user();
123 reload_printers(server_event_context(), msg
);
126 /*******************************************************************
127 Delete a statcache entry.
128 ********************************************************************/
130 static void smb_stat_cache_delete(struct messaging_context
*msg
,
133 struct server_id server_id
,
136 const char *name
= (const char *)data
->data
;
137 DEBUG(10,("smb_stat_cache_delete: delete name %s\n", name
));
138 stat_cache_delete(name
);
141 /****************************************************************************
142 Send a SIGTERM to our process group.
143 *****************************************************************************/
145 static void killkids(void)
147 if(am_parent
) kill(0,SIGTERM
);
150 /****************************************************************************
151 Process a sam sync message - not sure whether to do this here or
153 ****************************************************************************/
155 static void msg_sam_sync(struct messaging_context
*msg
,
158 struct server_id server_id
,
161 DEBUG(10, ("** sam sync message received, ignoring\n"));
164 static void msg_exit_server(struct messaging_context
*msg
,
167 struct server_id server_id
,
170 DEBUG(3, ("got a SHUTDOWN message\n"));
171 exit_server_cleanly(NULL
);
175 static void msg_inject_fault(struct messaging_context
*msg
,
178 struct server_id src
,
183 if (data
->length
!= sizeof(sig
)) {
184 DEBUG(0, ("Process %s sent bogus signal injection request\n",
185 procid_str_static(&src
)));
189 sig
= *(int *)data
->data
;
191 exit_server("internal error injected");
196 DEBUG(0, ("Process %s requested injection of signal %d (%s)\n",
197 procid_str_static(&src
), sig
, strsignal(sig
)));
199 DEBUG(0, ("Process %s requested injection of signal %d\n",
200 procid_str_static(&src
), sig
));
203 kill(sys_getpid(), sig
);
205 #endif /* DEVELOPER */
208 * Parent smbd process sets its own debug level first and then
209 * sends a message to all the smbd children to adjust their debug
210 * level to that of the parent.
213 static void smbd_msg_debug(struct messaging_context
*msg_ctx
,
216 struct server_id server_id
,
219 struct child_pid
*child
;
221 debug_message(msg_ctx
, private_data
, MSG_DEBUG
, server_id
, data
);
223 for (child
= children
; child
!= NULL
; child
= child
->next
) {
224 messaging_send_buf(msg_ctx
, pid_to_procid(child
->pid
),
227 strlen((char *) data
->data
) + 1);
231 static void add_child_pid(pid_t pid
)
233 struct child_pid
*child
;
235 child
= SMB_MALLOC_P(struct child_pid
);
237 DEBUG(0, ("Could not add child struct -- malloc failed\n"));
241 DLIST_ADD(children
, child
);
246 at most every smbd:cleanuptime seconds (default 20), we scan the BRL
247 and locking database for entries to cleanup. As a side effect this
248 also cleans up dead entries in the connections database (due to the
249 traversal in message_send_all()
251 Using a timer for this prevents a flood of traversals when a large
252 number of clients disconnect at the same time (perhaps due to a
256 static void cleanup_timeout_fn(struct event_context
*event_ctx
,
257 struct timed_event
*te
,
261 struct timed_event
**cleanup_te
= (struct timed_event
**)private_data
;
263 DEBUG(1,("Cleaning up brl and lock database after unclean shutdown\n"));
264 message_send_all(smbd_messaging_context(), MSG_SMB_UNLOCK
, NULL
, 0, NULL
);
265 messaging_send_buf(smbd_messaging_context(), procid_self(),
266 MSG_SMB_BRL_VALIDATE
, NULL
, 0);
267 /* mark the cleanup as having been done */
268 (*cleanup_te
) = NULL
;
271 static void remove_child_pid(pid_t pid
, bool unclean_shutdown
)
273 struct child_pid
*child
;
274 static struct timed_event
*cleanup_te
;
275 struct server_id child_id
;
277 if (unclean_shutdown
) {
278 /* a child terminated uncleanly so tickle all
279 processes to see if they can grab any of the
282 DEBUG(3,(__location__
" Unclean shutdown of pid %u\n",
285 /* call the cleanup timer, but not too often */
286 int cleanup_time
= lp_parm_int(-1, "smbd", "cleanuptime", 20);
287 cleanup_te
= event_add_timed(smbd_event_context(), NULL
,
288 timeval_current_ofs(cleanup_time
, 0),
291 DEBUG(1,("Scheduled cleanup of brl and lock database after unclean shutdown\n"));
295 child_id
= procid_self(); /* Just initialize pid and potentially vnn */
298 if (!serverid_deregister(child_id
)) {
299 DEBUG(1, ("Could not remove pid %d from serverid.tdb\n",
303 for (child
= children
; child
!= NULL
; child
= child
->next
) {
304 if (child
->pid
== pid
) {
305 struct child_pid
*tmp
= child
;
306 DLIST_REMOVE(children
, child
);
313 DEBUG(0, ("Could not find child %d -- ignoring\n", (int)pid
));
316 /****************************************************************************
317 Have we reached the process limit ?
318 ****************************************************************************/
320 static bool allowable_number_of_smbd_processes(void)
322 int max_processes
= lp_max_smbd_processes();
327 return num_children
< max_processes
;
330 static void smbd_sig_chld_handler(struct tevent_context
*ev
,
331 struct tevent_signal
*se
,
340 while ((pid
= sys_waitpid(-1, &status
, WNOHANG
)) > 0) {
341 bool unclean_shutdown
= False
;
343 /* If the child terminated normally, assume
344 it was an unclean shutdown unless the
347 if (WIFEXITED(status
)) {
348 unclean_shutdown
= WEXITSTATUS(status
);
350 /* If the child terminated due to a signal
351 we always assume it was unclean.
353 if (WIFSIGNALED(status
)) {
354 unclean_shutdown
= True
;
356 remove_child_pid(pid
, unclean_shutdown
);
360 static void smbd_setup_sig_chld_handler(void)
362 struct tevent_signal
*se
;
364 se
= tevent_add_signal(smbd_event_context(),
365 smbd_event_context(),
367 smbd_sig_chld_handler
,
370 exit_server("failed to setup SIGCHLD handler");
374 struct smbd_open_socket
;
376 struct smbd_parent_context
{
379 /* the list of listening sockets */
380 struct smbd_open_socket
*sockets
;
383 struct smbd_open_socket
{
384 struct smbd_open_socket
*prev
, *next
;
385 struct smbd_parent_context
*parent
;
387 struct tevent_fd
*fde
;
390 static void smbd_open_socket_close_fn(struct tevent_context
*ev
,
391 struct tevent_fd
*fde
,
395 /* this might be the socket_wrapper swrap_close() */
399 static void smbd_accept_connection(struct tevent_context
*ev
,
400 struct tevent_fd
*fde
,
404 struct smbd_open_socket
*s
= talloc_get_type_abort(private_data
,
405 struct smbd_open_socket
);
406 struct sockaddr_storage addr
;
407 socklen_t in_addrlen
= sizeof(addr
);
412 fd
= accept(s
->fd
, (struct sockaddr
*)(void *)&addr
,&in_addrlen
);
413 smbd_set_server_fd(fd
);
415 if (fd
== -1 && errno
== EINTR
)
419 DEBUG(0,("open_sockets_smbd: accept: %s\n",
424 if (s
->parent
->interactive
) {
425 smbd_process(smbd_server_conn
);
426 exit_server_cleanly("end of interactive mode");
430 if (!allowable_number_of_smbd_processes()) {
432 smbd_set_server_fd(-1);
437 * Generate a unique id in the parent process so that we use
438 * the global random state in the parent.
440 generate_random_buffer((uint8_t *)&unique_id
, sizeof(unique_id
));
444 NTSTATUS status
= NT_STATUS_OK
;
449 set_my_unique_id(unique_id
);
451 /* Stop zombies, the parent explicitly handles
452 * them, counting worker smbds. */
455 /* close our standard file
457 close_low_fds(False
);
460 * Can't use TALLOC_FREE here. Nulling out the argument to it
461 * would overwrite memory we've just freed.
463 talloc_free(s
->parent
);
466 status
= reinit_after_fork(smbd_messaging_context(),
467 smbd_event_context(), procid_self(),
469 if (!NT_STATUS_IS_OK(status
)) {
470 if (NT_STATUS_EQUAL(status
,
471 NT_STATUS_TOO_MANY_OPENED_FILES
)) {
472 DEBUG(0,("child process cannot initialize "
473 "because too many files are open\n"));
476 DEBUG(0,("reinit_after_fork() failed\n"));
477 smb_panic("reinit_after_fork() failed");
480 smbd_setup_sig_term_handler();
481 smbd_setup_sig_hup_handler(server_event_context(),
482 server_messaging_context());
484 if (!serverid_register(procid_self(),
485 FLAG_MSG_GENERAL
|FLAG_MSG_SMBD
487 |FLAG_MSG_PRINT_GENERAL
)) {
488 exit_server_cleanly("Could not register myself in "
492 smbd_process(smbd_server_conn
);
494 exit_server_cleanly("end of child");
499 DEBUG(0,("smbd_accept_connection: sys_fork() failed: %s\n",
503 /* The parent doesn't need this socket */
506 /* Sun May 6 18:56:14 2001 ackley@cs.unm.edu:
507 Clear the closed fd info out of server_fd --
508 and more importantly, out of client_fd in
509 util_sock.c, to avoid a possible
510 getpeername failure if we reopen the logs
511 and use %I in the filename.
514 smbd_set_server_fd(-1);
520 /* Force parent to check log size after
521 * spawning child. Fix from
522 * klausr@ITAP.Physik.Uni-Stuttgart.De. The
523 * parent smbd will log to logserver.smb. It
524 * writes only two messages for each child
525 * started/finished. But each child writes,
526 * say, 50 messages also in logserver.smb,
527 * begining with the debug_count of the
528 * parent, before the child opens its own log
529 * file logserver.client. In a worst case
530 * scenario the size of logserver.smb would be
531 * checked after about 50*50=2500 messages
534 force_check_log_size();
537 static bool smbd_open_one_socket(struct smbd_parent_context
*parent
,
538 const struct sockaddr_storage
*ifss
,
541 struct smbd_open_socket
*s
;
543 s
= talloc(parent
, struct smbd_open_socket
);
549 s
->fd
= open_socket_in(SOCK_STREAM
,
551 parent
->sockets
== NULL
? 0 : 2,
555 DEBUG(0,("smbd_open_once_socket: open_socket_in: "
556 "%s\n", strerror(errno
)));
559 * We ignore an error here, as we've done before
564 /* ready to listen */
565 set_socket_options(s
->fd
, "SO_KEEPALIVE");
566 set_socket_options(s
->fd
, lp_socket_options());
568 /* Set server socket to
569 * non-blocking for the accept. */
570 set_blocking(s
->fd
, False
);
572 if (listen(s
->fd
, SMBD_LISTEN_BACKLOG
) == -1) {
573 DEBUG(0,("open_sockets_smbd: listen: "
574 "%s\n", strerror(errno
)));
580 s
->fde
= tevent_add_fd(smbd_event_context(),
582 s
->fd
, TEVENT_FD_READ
,
583 smbd_accept_connection
,
586 DEBUG(0,("open_sockets_smbd: "
587 "tevent_add_fd: %s\n",
593 tevent_fd_set_close_fn(s
->fde
, smbd_open_socket_close_fn
);
595 DLIST_ADD_END(parent
->sockets
, s
, struct smbd_open_socket
*);
600 static bool smbd_parent_housekeeping(const struct timeval
*now
, void *private_data
)
602 time_t printcap_cache_time
= (time_t)lp_printcap_cache_time();
603 time_t t
= time_mono(NULL
);
605 DEBUG(5, ("parent housekeeping\n"));
607 /* if periodic printcap rescan is enabled, see if it's time to reload */
608 if ((printcap_cache_time
!= 0)
609 && (t
>= (last_printer_reload_time
+ printcap_cache_time
))) {
610 DEBUG( 3,( "Printcap cache time expired.\n"));
611 pcap_cache_reload(server_event_context(),
612 smbd_messaging_context(),
613 &reload_pcap_change_notify
);
614 last_printer_reload_time
= t
;
620 /****************************************************************************
621 Open the socket communication.
622 ****************************************************************************/
624 static bool open_sockets_smbd(struct smbd_parent_context
*parent
,
625 struct messaging_context
*msg_ctx
,
626 const char *smb_ports
)
628 int num_interfaces
= iface_count();
631 unsigned dns_port
= 0;
638 smbd_setup_sig_chld_handler();
640 /* use a reasonable default set of ports - listing on 445 and 139 */
642 ports
= lp_smb_ports();
643 if (!ports
|| !*ports
) {
644 ports
= talloc_strdup(talloc_tos(), SMB_PORTS
);
646 ports
= talloc_strdup(talloc_tos(), ports
);
649 ports
= talloc_strdup(talloc_tos(), smb_ports
);
652 if (lp_interfaces() && lp_bind_interfaces_only()) {
653 /* We have been given an interfaces line, and been
654 told to only bind to those interfaces. Create a
655 socket per interface and bind to only these.
658 /* Now open a listen socket for each of the
660 for(i
= 0; i
< num_interfaces
; i
++) {
661 const struct sockaddr_storage
*ifss
=
662 iface_n_sockaddr_storage(i
);
667 DEBUG(0,("open_sockets_smbd: "
668 "interface %d has NULL IP address !\n",
674 next_token_talloc(talloc_tos(),&ptr
, &tok
, " \t,");) {
675 unsigned port
= atoi(tok
);
676 if (port
== 0 || port
> 0xffff) {
680 if (!smbd_open_one_socket(parent
, ifss
, port
)) {
686 /* Just bind to 0.0.0.0 - accept connections
691 const char *sock_addr
= lp_socket_address();
693 const char *sock_ptr
;
695 if (strequal(sock_addr
, "0.0.0.0") ||
696 strequal(sock_addr
, "::")) {
698 sock_addr
= "::,0.0.0.0";
700 sock_addr
= "0.0.0.0";
704 for (sock_ptr
=sock_addr
;
705 next_token_talloc(talloc_tos(), &sock_ptr
, &sock_tok
, " \t,"); ) {
706 for (ptr
=ports
; next_token_talloc(talloc_tos(), &ptr
, &tok
, " \t,"); ) {
707 struct sockaddr_storage ss
;
709 unsigned port
= atoi(tok
);
710 if (port
== 0 || port
> 0xffff) {
714 /* Keep the first port for mDNS service
721 /* open an incoming socket */
722 if (!interpret_string_addr(&ss
, sock_tok
,
723 AI_NUMERICHOST
|AI_PASSIVE
)) {
727 if (!smbd_open_one_socket(parent
, &ss
, port
)) {
734 if (parent
->sockets
== NULL
) {
735 DEBUG(0,("open_sockets_smbd: No "
736 "sockets available to bind to.\n"));
740 /* Setup the main smbd so that we can get messages. Note that
741 do this after starting listening. This is needed as when in
742 clustered mode, ctdb won't allow us to start doing database
743 operations until it has gone thru a full startup, which
744 includes checking to see that smbd is listening. */
746 if (!serverid_register(procid_self(),
747 FLAG_MSG_GENERAL
|FLAG_MSG_SMBD
749 DEBUG(0, ("open_sockets_smbd: Failed to register "
750 "myself in serverid.tdb\n"));
754 if (!(event_add_idle(smbd_event_context(), NULL
,
755 timeval_set(SMBD_HOUSEKEEPING_INTERVAL
, 0),
756 "parent_housekeeping", smbd_parent_housekeeping
,
758 DEBUG(0, ("Could not add parent_housekeeping event\n"));
762 /* Listen to messages */
764 messaging_register(msg_ctx
, NULL
, MSG_SMB_SAM_SYNC
, msg_sam_sync
);
765 messaging_register(msg_ctx
, NULL
, MSG_SHUTDOWN
, msg_exit_server
);
766 messaging_register(msg_ctx
, NULL
, MSG_SMB_FILE_RENAME
,
767 msg_file_was_renamed
);
768 messaging_register(msg_ctx
, NULL
, MSG_SMB_CONF_UPDATED
,
770 messaging_register(msg_ctx
, NULL
, MSG_SMB_STAT_CACHE_DELETE
,
771 smb_stat_cache_delete
);
772 messaging_register(msg_ctx
, NULL
, MSG_DEBUG
, smbd_msg_debug
);
773 messaging_register(msg_ctx
, NULL
, MSG_PRINTER_PCAP
, smb_pcap_updated
);
774 brl_register_msgs(msg_ctx
);
776 #ifdef CLUSTER_SUPPORT
777 if (lp_clustering()) {
778 ctdbd_register_reconfigure(messaging_ctdbd_connection());
783 messaging_register(msg_ctx
, NULL
, MSG_SMB_INJECT_FAULT
,
787 if (lp_multicast_dns_register() && (dns_port
!= 0)) {
788 #ifdef WITH_DNSSD_SUPPORT
789 smbd_setup_mdns_registration(smbd_event_context(),
792 #ifdef WITH_AVAHI_SUPPORT
795 avahi_conn
= avahi_start_register(
796 smbd_event_context(), smbd_event_context(), dns_port
);
797 if (avahi_conn
== NULL
) {
798 DEBUG(10, ("avahi_start_register failed\n"));
806 static void smbd_parent_loop(struct smbd_parent_context
*parent
)
808 /* now accept incoming connections - forking a new process
809 for each incoming connection */
810 DEBUG(2,("waiting for connections\n"));
813 TALLOC_CTX
*frame
= talloc_stackframe();
815 ret
= tevent_loop_once(smbd_event_context());
817 exit_server_cleanly("tevent_loop_once() error");
823 /* NOTREACHED return True; */
827 /****************************************************************************
828 Initialise connect, service and file structs.
829 ****************************************************************************/
831 static bool init_structs(void )
834 * Set the machine NETBIOS name if not already
835 * set from the config file.
847 static bool spoolss_init_cb(void *ptr
)
849 struct messaging_context
*msg_ctx
= talloc_get_type_abort(
850 ptr
, struct messaging_context
);
851 return nt_printing_tdb_migrate(msg_ctx
);
854 static bool spoolss_shutdown_cb(void *ptr
)
856 srv_spoolss_cleanup();
861 /****************************************************************************
863 ****************************************************************************/
865 /* Declare prototype for build_options() to avoid having to run it through
866 mkproto.h. Mixing $(builddir) and $(srcdir) source files in the current
867 prototype generation system is too complicated. */
869 extern void build_options(bool screen
);
871 int main(int argc
,const char *argv
[])
873 /* shall I run as a daemon */
874 bool is_daemon
= false;
875 bool interactive
= false;
877 bool no_process_group
= false;
878 bool log_stdout
= false;
880 char *profile_level
= NULL
;
883 bool print_build_options
= False
;
888 OPT_NO_PROCESS_GROUP
,
891 struct poptOption long_options
[] = {
893 {"daemon", 'D', POPT_ARG_NONE
, NULL
, OPT_DAEMON
, "Become a daemon (default)" },
894 {"interactive", 'i', POPT_ARG_NONE
, NULL
, OPT_INTERACTIVE
, "Run interactive (not a daemon)"},
895 {"foreground", 'F', POPT_ARG_NONE
, NULL
, OPT_FORK
, "Run daemon in foreground (for daemontools, etc.)" },
896 {"no-process-group", '\0', POPT_ARG_NONE
, NULL
, OPT_NO_PROCESS_GROUP
, "Don't create a new process group" },
897 {"log-stdout", 'S', POPT_ARG_NONE
, NULL
, OPT_LOG_STDOUT
, "Log to stdout" },
898 {"build-options", 'b', POPT_ARG_NONE
, NULL
, 'b', "Print build options" },
899 {"port", 'p', POPT_ARG_STRING
, &ports
, 0, "Listen on the specified ports"},
900 {"profiling-level", 'P', POPT_ARG_STRING
, &profile_level
, 0, "Set profiling level","PROFILE_LEVEL"},
902 POPT_COMMON_DYNCONFIG
905 struct smbd_parent_context
*parent
= NULL
;
909 struct rpc_srv_callbacks spoolss_cb
;
912 * Do this before any other talloc operation
914 talloc_enable_null_tracking();
915 frame
= talloc_stackframe();
919 /* Initialize the event context, it will panic on error */
920 smbd_event_context();
926 #ifdef HAVE_SET_AUTH_PARAMETERS
927 set_auth_parameters(argc
,argv
);
930 pc
= poptGetContext("smbd", argc
, argv
, long_options
, 0);
931 while((opt
= poptGetNextOpt(pc
)) != -1) {
936 case OPT_INTERACTIVE
:
942 case OPT_NO_PROCESS_GROUP
:
943 no_process_group
= true;
949 print_build_options
= True
;
952 d_fprintf(stderr
, "\nInvalid option %s: %s\n\n",
953 poptBadOption(pc
, 0), poptStrerror(opt
));
954 poptPrintUsage(pc
, stderr
, 0);
966 setup_logging(argv
[0], DEBUG_STDOUT
);
968 setup_logging(argv
[0], DEBUG_FILE
);
971 if (print_build_options
) {
972 build_options(True
); /* Display output to screen as well as debug */
977 /* needed for SecureWare on SCO */
981 set_remote_machine_name("smbd", False
);
983 if (interactive
&& (DEBUGLEVEL
>= 9)) {
984 talloc_enable_leak_report();
987 if (log_stdout
&& Fork
) {
988 DEBUG(0,("ERROR: Can't log to stdout (-S) unless daemon is in foreground (-F) or interactive (-i)\n"));
992 /* we want to re-seed early to prevent time delays causing
993 client problems at a later date. (tridge) */
994 generate_random_buffer(NULL
, 0);
996 /* get initial effective uid and gid */
999 /* make absolutely sure we run as root - to handle cases where people
1000 are crazy enough to have it setuid */
1001 gain_root_privilege();
1002 gain_root_group_privilege();
1004 fault_setup((void (*)(void *))exit_server_fault
);
1005 dump_core_setup("smbd");
1007 /* we are never interested in SIGPIPE */
1008 BlockSignals(True
,SIGPIPE
);
1011 /* we are never interested in SIGFPE */
1012 BlockSignals(True
,SIGFPE
);
1015 #if defined(SIGUSR2)
1016 /* We are no longer interested in USR2 */
1017 BlockSignals(True
,SIGUSR2
);
1020 /* POSIX demands that signals are inherited. If the invoking process has
1021 * these signals masked, we will have problems, as we won't recieve them. */
1022 BlockSignals(False
, SIGHUP
);
1023 BlockSignals(False
, SIGUSR1
);
1024 BlockSignals(False
, SIGTERM
);
1026 /* Ensure we leave no zombies until we
1027 * correctly set up child handling below. */
1031 /* we want total control over the permissions on created files,
1032 so set our umask to 0 */
1037 DEBUG(0,("smbd version %s started.\n", samba_version_string()));
1038 DEBUGADD(0,("%s\n", COPYRIGHT_STARTUP_MESSAGE
));
1040 DEBUG(2,("uid=%d gid=%d euid=%d egid=%d\n",
1041 (int)getuid(),(int)getgid(),(int)geteuid(),(int)getegid()));
1043 /* Output the build options to the debug log */
1044 build_options(False
);
1046 if (sizeof(uint16
) < 2 || sizeof(uint32
) < 4) {
1047 DEBUG(0,("ERROR: Samba is not configured correctly for the word size on your machine\n"));
1051 if (!lp_load_initial_only(get_dyn_CONFIGFILE())) {
1052 DEBUG(0, ("error opening config file\n"));
1056 /* Init the security context and global current_user */
1059 if (smbd_messaging_context() == NULL
)
1063 * Reloading of the printers will not work here as we don't have a
1064 * server info and rpc services set up. It will be called later.
1066 if (!reload_services(smbd_messaging_context(), -1, False
)) {
1070 /* ...NOTE... Log files are working from this point! */
1072 DEBUG(3,("loaded services\n"));
1077 if (!profile_setup(smbd_messaging_context(), False
)) {
1078 DEBUG(0,("ERROR: failed to setup profiling\n"));
1081 if (profile_level
!= NULL
) {
1082 int pl
= atoi(profile_level
);
1083 struct server_id src
;
1085 DEBUG(1, ("setting profiling level: %s\n",profile_level
));
1087 set_profile_level(pl
, src
);
1091 if (!is_daemon
&& !is_a_socket(0)) {
1093 DEBUG(0,("standard input is not a socket, assuming -D option\n"));
1096 * Setting is_daemon here prevents us from eventually calling
1097 * the open_sockets_inetd()
1103 if (is_daemon
&& !interactive
) {
1104 DEBUG( 3, ( "Becoming a daemon.\n" ) );
1105 become_daemon(Fork
, no_process_group
, log_stdout
);
1108 generate_random_buffer((uint8_t *)&unique_id
, sizeof(unique_id
));
1109 set_my_unique_id(unique_id
);
1113 * If we're interactive we want to set our own process group for
1114 * signal management.
1116 if (interactive
&& !no_process_group
)
1117 setpgid( (pid_t
)0, (pid_t
)0);
1120 if (!directory_exist(lp_lockdir()))
1121 mkdir(lp_lockdir(), 0755);
1124 pidfile_create("smbd");
1126 status
= reinit_after_fork(smbd_messaging_context(),
1127 smbd_event_context(),
1128 procid_self(), false);
1129 if (!NT_STATUS_IS_OK(status
)) {
1130 DEBUG(0,("reinit_after_fork() failed\n"));
1134 smbd_server_conn
->msg_ctx
= smbd_messaging_context();
1136 smbd_setup_sig_term_handler();
1137 smbd_setup_sig_hup_handler(smbd_event_context(),
1138 smbd_server_conn
->msg_ctx
);
1140 /* Setup all the TDB's - including CLEAR_IF_FIRST tdb's. */
1142 if (smbd_memcache() == NULL
) {
1146 memcache_set_global(smbd_memcache());
1148 /* Initialise the password backed before the global_sam_sid
1149 to ensure that we fetch from ldap before we make a domain sid up */
1151 if(!initialize_password_db(False
, smbd_event_context()))
1154 if (!secrets_init()) {
1155 DEBUG(0, ("ERROR: smbd can not open secrets.tdb\n"));
1159 if (lp_server_role() == ROLE_DOMAIN_BDC
|| lp_server_role() == ROLE_DOMAIN_PDC
) {
1160 if (!open_schannel_session_store(NULL
, lp_private_dir())) {
1161 DEBUG(0,("ERROR: Samba cannot open schannel store for secured NETLOGON operations.\n"));
1166 if(!get_global_sam_sid()) {
1167 DEBUG(0,("ERROR: Samba cannot create a SAM SID.\n"));
1171 if (!sessionid_init()) {
1175 if (!connections_init(True
))
1178 if (!locking_init())
1181 if (!messaging_tdb_parent_init(smbd_event_context())) {
1185 if (!notify_internal_parent_init(smbd_event_context())) {
1189 if (!serverid_parent_init(smbd_event_context())) {
1193 if (!printer_list_parent_init()) {
1197 if (!W_ERROR_IS_OK(registry_init_full()))
1200 if (!print_backend_init(smbd_messaging_context()))
1203 /* Open the share_info.tdb here, so we don't have to open
1204 after the fork on every single connection. This is a small
1205 performance improvment and reduces the total number of system
1207 if (!share_info_db_init()) {
1208 DEBUG(0,("ERROR: failed to load share info db.\n"));
1212 if (!init_system_info()) {
1213 DEBUG(0,("ERROR: failed to setup system user info.\n"));
1217 if (!init_guest_info()) {
1218 DEBUG(0,("ERROR: failed to setup guest info.\n"));
1222 if (!file_init(smbd_server_conn
)) {
1223 DEBUG(0, ("ERROR: file_init failed\n"));
1228 * Initialize spoolss with an init function to convert printers first.
1229 * static_init_rpc will try to initialize the spoolss server too but you
1230 * can't register it twice.
1232 spoolss_cb
.init
= spoolss_init_cb
;
1233 spoolss_cb
.shutdown
= spoolss_shutdown_cb
;
1234 spoolss_cb
.private_data
= smbd_server_conn
->msg_ctx
;
1237 * TODO: Create a dependency tree, so that all services are started
1238 * in the right order.
1240 if (!NT_STATUS_IS_OK(rpc_lsarpc_init(NULL
))) {
1243 if (!NT_STATUS_IS_OK(rpc_samr_init(NULL
))) {
1246 if (!NT_STATUS_IS_OK(rpc_netlogon_init(NULL
))) {
1250 if (!NT_STATUS_IS_OK(rpc_winreg_init(NULL
))) {
1253 if (!NT_STATUS_IS_OK(rpc_srvsvc_init(NULL
))) {
1257 if (!NT_STATUS_IS_OK(rpc_spoolss_init(&spoolss_cb
))) {
1260 if (!NT_STATUS_IS_OK(rpc_svcctl_init(NULL
))) {
1263 if (!NT_STATUS_IS_OK(rpc_ntsvcs_init(NULL
))) {
1266 if (!NT_STATUS_IS_OK(rpc_eventlog_init(NULL
))) {
1269 if (!NT_STATUS_IS_OK(rpc_initshutdown_init(NULL
))) {
1272 if (!NT_STATUS_IS_OK(rpc_netdfs_init(NULL
))) {
1276 if (!NT_STATUS_IS_OK(rpc_rpcecho_init(NULL
))) {
1280 if (!NT_STATUS_IS_OK(rpc_dssetup_init(NULL
))) {
1283 if (!NT_STATUS_IS_OK(rpc_wkssvc_init(NULL
))) {
1287 /* Publish nt printers, this requires a working winreg pipe */
1288 pcap_cache_reload(server_event_context(), smbd_messaging_context(),
1291 /* only start the background queue daemon if we are
1292 running as a daemon -- bad things will happen if
1293 smbd is launched via inetd and we fork a copy of
1296 if (is_daemon
&& !interactive
1297 && lp_parm_bool(-1, "smbd", "backgroundqueue", true)) {
1298 start_background_queue(smbd_event_context(),
1299 smbd_messaging_context());
1306 /* Started from inetd. fd 0 is the socket. */
1307 /* We will abort gracefully when the client or remote system
1309 smbd_set_server_fd(dup(0));
1311 /* close our standard file descriptors */
1312 close_low_fds(False
); /* Don't close stderr */
1319 smbd_setup_sig_chld_handler();
1321 smbd_process(smbd_server_conn
);
1323 exit_server_cleanly(NULL
);
1327 parent
= talloc_zero(smbd_event_context(), struct smbd_parent_context
);
1329 exit_server("talloc(struct smbd_parent_context) failed");
1331 parent
->interactive
= interactive
;
1333 if (!open_sockets_smbd(parent
, smbd_messaging_context(), ports
))
1334 exit_server("open_sockets_smbd() failed");
1337 /* make sure we always have a valid stackframe */
1338 frame
= talloc_stackframe();
1340 smbd_parent_loop(parent
);
1342 exit_server_cleanly(NULL
);