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"
56 extern int dcelogin_atmost_once
;
59 static void smbd_set_server_fd(int fd
)
61 struct smbd_server_connection
*sconn
= smbd_server_conn
;
62 char addr
[INET6_ADDRSTRLEN
];
68 * Initialize sconn->client_id: If we can't find the client's
69 * name, default to its address.
72 client_addr(fd
, sconn
->client_id
.addr
, sizeof(sconn
->client_id
.addr
));
74 name
= client_name(sconn
->sock
);
75 if (strcmp(name
, "UNKNOWN") != 0) {
76 name
= talloc_strdup(sconn
, name
);
80 sconn
->client_id
.name
=
81 (name
!= NULL
) ? name
: sconn
->client_id
.addr
;
83 sub_set_socket_ids(sconn
->client_id
.addr
, sconn
->client_id
.name
,
84 client_socket_addr(sconn
->sock
, addr
,
88 struct event_context
*smbd_event_context(void)
90 return server_event_context();
93 /*******************************************************************
94 What to do when smb.conf is updated.
95 ********************************************************************/
97 static void smb_conf_updated(struct messaging_context
*msg
,
100 struct server_id server_id
,
103 DEBUG(10,("smb_conf_updated: Got message saying smb.conf was "
104 "updated. Reloading.\n"));
105 change_to_root_user();
106 reload_services(msg
, smbd_server_conn
->sock
, False
);
110 /*******************************************************************
111 Delete a statcache entry.
112 ********************************************************************/
114 static void smb_stat_cache_delete(struct messaging_context
*msg
,
117 struct server_id server_id
,
120 const char *name
= (const char *)data
->data
;
121 DEBUG(10,("smb_stat_cache_delete: delete name %s\n", name
));
122 stat_cache_delete(name
);
125 /****************************************************************************
126 Send a SIGTERM to our process group.
127 *****************************************************************************/
129 static void killkids(void)
131 if(am_parent
) kill(0,SIGTERM
);
134 /****************************************************************************
135 Process a sam sync message - not sure whether to do this here or
137 ****************************************************************************/
139 static void msg_sam_sync(struct messaging_context
*msg
,
142 struct server_id server_id
,
145 DEBUG(10, ("** sam sync message received, ignoring\n"));
148 static void msg_exit_server(struct messaging_context
*msg
,
151 struct server_id server_id
,
154 DEBUG(3, ("got a SHUTDOWN message\n"));
155 exit_server_cleanly(NULL
);
159 static void msg_inject_fault(struct messaging_context
*msg
,
162 struct server_id src
,
167 if (data
->length
!= sizeof(sig
)) {
168 DEBUG(0, ("Process %s sent bogus signal injection request\n",
169 procid_str_static(&src
)));
173 sig
= *(int *)data
->data
;
175 exit_server("internal error injected");
180 DEBUG(0, ("Process %s requested injection of signal %d (%s)\n",
181 procid_str_static(&src
), sig
, strsignal(sig
)));
183 DEBUG(0, ("Process %s requested injection of signal %d\n",
184 procid_str_static(&src
), sig
));
187 kill(sys_getpid(), sig
);
189 #endif /* DEVELOPER */
192 * Parent smbd process sets its own debug level first and then
193 * sends a message to all the smbd children to adjust their debug
194 * level to that of the parent.
197 static void smbd_msg_debug(struct messaging_context
*msg_ctx
,
200 struct server_id server_id
,
203 struct child_pid
*child
;
205 debug_message(msg_ctx
, private_data
, MSG_DEBUG
, server_id
, data
);
207 for (child
= children
; child
!= NULL
; child
= child
->next
) {
208 messaging_send_buf(msg_ctx
, pid_to_procid(child
->pid
),
211 strlen((char *) data
->data
) + 1);
215 static void add_child_pid(pid_t pid
)
217 struct child_pid
*child
;
219 child
= SMB_MALLOC_P(struct child_pid
);
221 DEBUG(0, ("Could not add child struct -- malloc failed\n"));
225 DLIST_ADD(children
, child
);
230 at most every smbd:cleanuptime seconds (default 20), we scan the BRL
231 and locking database for entries to cleanup. As a side effect this
232 also cleans up dead entries in the connections database (due to the
233 traversal in message_send_all()
235 Using a timer for this prevents a flood of traversals when a large
236 number of clients disconnect at the same time (perhaps due to a
240 static void cleanup_timeout_fn(struct event_context
*event_ctx
,
241 struct timed_event
*te
,
245 struct timed_event
**cleanup_te
= (struct timed_event
**)private_data
;
247 DEBUG(1,("Cleaning up brl and lock database after unclean shutdown\n"));
248 message_send_all(smbd_messaging_context(), MSG_SMB_UNLOCK
, NULL
, 0, NULL
);
249 messaging_send_buf(smbd_messaging_context(), procid_self(),
250 MSG_SMB_BRL_VALIDATE
, NULL
, 0);
251 /* mark the cleanup as having been done */
252 (*cleanup_te
) = NULL
;
255 static void remove_child_pid(pid_t pid
, bool unclean_shutdown
)
257 struct child_pid
*child
;
258 static struct timed_event
*cleanup_te
;
259 struct server_id child_id
;
261 if (unclean_shutdown
) {
262 /* a child terminated uncleanly so tickle all
263 processes to see if they can grab any of the
266 DEBUG(3,(__location__
" Unclean shutdown of pid %u\n",
269 /* call the cleanup timer, but not too often */
270 int cleanup_time
= lp_parm_int(-1, "smbd", "cleanuptime", 20);
271 cleanup_te
= event_add_timed(smbd_event_context(), NULL
,
272 timeval_current_ofs(cleanup_time
, 0),
275 DEBUG(1,("Scheduled cleanup of brl and lock database after unclean shutdown\n"));
279 child_id
= procid_self(); /* Just initialize pid and potentially vnn */
282 if (!serverid_deregister(child_id
)) {
283 DEBUG(1, ("Could not remove pid %d from serverid.tdb\n",
287 for (child
= children
; child
!= NULL
; child
= child
->next
) {
288 if (child
->pid
== pid
) {
289 struct child_pid
*tmp
= child
;
290 DLIST_REMOVE(children
, child
);
297 DEBUG(0, ("Could not find child %d -- ignoring\n", (int)pid
));
300 /****************************************************************************
301 Have we reached the process limit ?
302 ****************************************************************************/
304 static bool allowable_number_of_smbd_processes(void)
306 int max_processes
= lp_max_smbd_processes();
311 return num_children
< max_processes
;
314 static void smbd_sig_chld_handler(struct tevent_context
*ev
,
315 struct tevent_signal
*se
,
324 while ((pid
= sys_waitpid(-1, &status
, WNOHANG
)) > 0) {
325 bool unclean_shutdown
= False
;
327 /* If the child terminated normally, assume
328 it was an unclean shutdown unless the
331 if (WIFEXITED(status
)) {
332 unclean_shutdown
= WEXITSTATUS(status
);
334 /* If the child terminated due to a signal
335 we always assume it was unclean.
337 if (WIFSIGNALED(status
)) {
338 unclean_shutdown
= True
;
340 remove_child_pid(pid
, unclean_shutdown
);
344 static void smbd_setup_sig_chld_handler(void)
346 struct tevent_signal
*se
;
348 se
= tevent_add_signal(smbd_event_context(),
349 smbd_event_context(),
351 smbd_sig_chld_handler
,
354 exit_server("failed to setup SIGCHLD handler");
358 struct smbd_open_socket
;
360 struct smbd_parent_context
{
363 /* the list of listening sockets */
364 struct smbd_open_socket
*sockets
;
367 struct smbd_open_socket
{
368 struct smbd_open_socket
*prev
, *next
;
369 struct smbd_parent_context
*parent
;
371 struct tevent_fd
*fde
;
374 static void smbd_open_socket_close_fn(struct tevent_context
*ev
,
375 struct tevent_fd
*fde
,
379 /* this might be the socket_wrapper swrap_close() */
383 static void smbd_accept_connection(struct tevent_context
*ev
,
384 struct tevent_fd
*fde
,
388 struct smbd_open_socket
*s
= talloc_get_type_abort(private_data
,
389 struct smbd_open_socket
);
390 struct sockaddr_storage addr
;
391 socklen_t in_addrlen
= sizeof(addr
);
396 fd
= accept(s
->fd
, (struct sockaddr
*)(void *)&addr
,&in_addrlen
);
397 smbd_set_server_fd(fd
);
399 if (fd
== -1 && errno
== EINTR
)
403 DEBUG(0,("open_sockets_smbd: accept: %s\n",
408 if (s
->parent
->interactive
) {
409 smbd_process(smbd_server_conn
);
410 exit_server_cleanly("end of interactive mode");
414 if (!allowable_number_of_smbd_processes()) {
416 smbd_set_server_fd(-1);
421 * Generate a unique id in the parent process so that we use
422 * the global random state in the parent.
424 generate_random_buffer((uint8_t *)&unique_id
, sizeof(unique_id
));
428 NTSTATUS status
= NT_STATUS_OK
;
433 set_my_unique_id(unique_id
);
435 /* Stop zombies, the parent explicitly handles
436 * them, counting worker smbds. */
439 /* close our standard file
441 close_low_fds(False
);
444 * Can't use TALLOC_FREE here. Nulling out the argument to it
445 * would overwrite memory we've just freed.
447 talloc_free(s
->parent
);
450 status
= reinit_after_fork(smbd_messaging_context(),
451 smbd_event_context(), procid_self(),
453 if (!NT_STATUS_IS_OK(status
)) {
454 if (NT_STATUS_EQUAL(status
,
455 NT_STATUS_TOO_MANY_OPENED_FILES
)) {
456 DEBUG(0,("child process cannot initialize "
457 "because too many files are open\n"));
460 DEBUG(0,("reinit_after_fork() failed\n"));
461 smb_panic("reinit_after_fork() failed");
464 smbd_setup_sig_term_handler();
465 smbd_setup_sig_hup_handler(server_event_context(),
466 server_messaging_context());
468 if (!serverid_register(procid_self(),
469 FLAG_MSG_GENERAL
|FLAG_MSG_SMBD
471 |FLAG_MSG_PRINT_GENERAL
)) {
472 exit_server_cleanly("Could not register myself in "
476 smbd_process(smbd_server_conn
);
478 exit_server_cleanly("end of child");
483 DEBUG(0,("smbd_accept_connection: sys_fork() failed: %s\n",
487 /* The parent doesn't need this socket */
490 /* Sun May 6 18:56:14 2001 ackley@cs.unm.edu:
491 Clear the closed fd info out of server_fd --
492 and more importantly, out of client_fd in
493 util_sock.c, to avoid a possible
494 getpeername failure if we reopen the logs
495 and use %I in the filename.
498 smbd_set_server_fd(-1);
504 /* Force parent to check log size after
505 * spawning child. Fix from
506 * klausr@ITAP.Physik.Uni-Stuttgart.De. The
507 * parent smbd will log to logserver.smb. It
508 * writes only two messages for each child
509 * started/finished. But each child writes,
510 * say, 50 messages also in logserver.smb,
511 * begining with the debug_count of the
512 * parent, before the child opens its own log
513 * file logserver.client. In a worst case
514 * scenario the size of logserver.smb would be
515 * checked after about 50*50=2500 messages
518 force_check_log_size();
521 static bool smbd_open_one_socket(struct smbd_parent_context
*parent
,
522 const struct sockaddr_storage
*ifss
,
525 struct smbd_open_socket
*s
;
527 s
= talloc(parent
, struct smbd_open_socket
);
533 s
->fd
= open_socket_in(SOCK_STREAM
,
535 parent
->sockets
== NULL
? 0 : 2,
539 DEBUG(0,("smbd_open_once_socket: open_socket_in: "
540 "%s\n", strerror(errno
)));
543 * We ignore an error here, as we've done before
548 /* ready to listen */
549 set_socket_options(s
->fd
, "SO_KEEPALIVE");
550 set_socket_options(s
->fd
, lp_socket_options());
552 /* Set server socket to
553 * non-blocking for the accept. */
554 set_blocking(s
->fd
, False
);
556 if (listen(s
->fd
, SMBD_LISTEN_BACKLOG
) == -1) {
557 DEBUG(0,("open_sockets_smbd: listen: "
558 "%s\n", strerror(errno
)));
564 s
->fde
= tevent_add_fd(smbd_event_context(),
566 s
->fd
, TEVENT_FD_READ
,
567 smbd_accept_connection
,
570 DEBUG(0,("open_sockets_smbd: "
571 "tevent_add_fd: %s\n",
577 tevent_fd_set_close_fn(s
->fde
, smbd_open_socket_close_fn
);
579 DLIST_ADD_END(parent
->sockets
, s
, struct smbd_open_socket
*);
584 /****************************************************************************
585 Open the socket communication.
586 ****************************************************************************/
588 static bool open_sockets_smbd(struct smbd_parent_context
*parent
,
589 struct messaging_context
*msg_ctx
,
590 const char *smb_ports
)
592 int num_interfaces
= iface_count();
595 unsigned dns_port
= 0;
602 smbd_setup_sig_chld_handler();
604 /* use a reasonable default set of ports - listing on 445 and 139 */
606 ports
= lp_smb_ports();
607 if (!ports
|| !*ports
) {
608 ports
= talloc_strdup(talloc_tos(), SMB_PORTS
);
610 ports
= talloc_strdup(talloc_tos(), ports
);
613 ports
= talloc_strdup(talloc_tos(), smb_ports
);
616 if (lp_interfaces() && lp_bind_interfaces_only()) {
617 /* We have been given an interfaces line, and been
618 told to only bind to those interfaces. Create a
619 socket per interface and bind to only these.
622 /* Now open a listen socket for each of the
624 for(i
= 0; i
< num_interfaces
; i
++) {
625 const struct sockaddr_storage
*ifss
=
626 iface_n_sockaddr_storage(i
);
631 DEBUG(0,("open_sockets_smbd: "
632 "interface %d has NULL IP address !\n",
638 next_token_talloc(talloc_tos(),&ptr
, &tok
, " \t,");) {
639 unsigned port
= atoi(tok
);
640 if (port
== 0 || port
> 0xffff) {
644 if (!smbd_open_one_socket(parent
, ifss
, port
)) {
650 /* Just bind to 0.0.0.0 - accept connections
655 const char *sock_addr
= lp_socket_address();
657 const char *sock_ptr
;
659 if (strequal(sock_addr
, "0.0.0.0") ||
660 strequal(sock_addr
, "::")) {
662 sock_addr
= "::,0.0.0.0";
664 sock_addr
= "0.0.0.0";
668 for (sock_ptr
=sock_addr
;
669 next_token_talloc(talloc_tos(), &sock_ptr
, &sock_tok
, " \t,"); ) {
670 for (ptr
=ports
; next_token_talloc(talloc_tos(), &ptr
, &tok
, " \t,"); ) {
671 struct sockaddr_storage ss
;
673 unsigned port
= atoi(tok
);
674 if (port
== 0 || port
> 0xffff) {
678 /* Keep the first port for mDNS service
685 /* open an incoming socket */
686 if (!interpret_string_addr(&ss
, sock_tok
,
687 AI_NUMERICHOST
|AI_PASSIVE
)) {
691 if (!smbd_open_one_socket(parent
, &ss
, port
)) {
698 if (parent
->sockets
== NULL
) {
699 DEBUG(0,("open_sockets_smbd: No "
700 "sockets available to bind to.\n"));
704 /* Setup the main smbd so that we can get messages. Note that
705 do this after starting listening. This is needed as when in
706 clustered mode, ctdb won't allow us to start doing database
707 operations until it has gone thru a full startup, which
708 includes checking to see that smbd is listening. */
710 if (!serverid_register(procid_self(),
711 FLAG_MSG_GENERAL
|FLAG_MSG_SMBD
713 DEBUG(0, ("open_sockets_smbd: Failed to register "
714 "myself in serverid.tdb\n"));
718 /* Listen to messages */
720 messaging_register(msg_ctx
, NULL
, MSG_SMB_SAM_SYNC
, msg_sam_sync
);
721 messaging_register(msg_ctx
, NULL
, MSG_SHUTDOWN
, msg_exit_server
);
722 messaging_register(msg_ctx
, NULL
, MSG_SMB_FILE_RENAME
,
723 msg_file_was_renamed
);
724 messaging_register(msg_ctx
, NULL
, MSG_SMB_CONF_UPDATED
,
726 messaging_register(msg_ctx
, NULL
, MSG_SMB_STAT_CACHE_DELETE
,
727 smb_stat_cache_delete
);
728 messaging_register(msg_ctx
, NULL
, MSG_DEBUG
, smbd_msg_debug
);
729 brl_register_msgs(msg_ctx
);
731 #ifdef CLUSTER_SUPPORT
732 if (lp_clustering()) {
733 ctdbd_register_reconfigure(messaging_ctdbd_connection());
738 messaging_register(msg_ctx
, NULL
, MSG_SMB_INJECT_FAULT
,
742 if (lp_multicast_dns_register() && (dns_port
!= 0)) {
743 #ifdef WITH_DNSSD_SUPPORT
744 smbd_setup_mdns_registration(smbd_event_context(),
747 #ifdef WITH_AVAHI_SUPPORT
750 avahi_conn
= avahi_start_register(
751 smbd_event_context(), smbd_event_context(), dns_port
);
752 if (avahi_conn
== NULL
) {
753 DEBUG(10, ("avahi_start_register failed\n"));
761 static void smbd_parent_loop(struct smbd_parent_context
*parent
)
763 /* now accept incoming connections - forking a new process
764 for each incoming connection */
765 DEBUG(2,("waiting for connections\n"));
768 TALLOC_CTX
*frame
= talloc_stackframe();
770 ret
= tevent_loop_once(smbd_event_context());
772 exit_server_cleanly("tevent_loop_once() error");
778 /* NOTREACHED return True; */
782 /****************************************************************************
783 Initialise connect, service and file structs.
784 ****************************************************************************/
786 static bool init_structs(void )
789 * Set the machine NETBIOS name if not already
790 * set from the config file.
802 static bool spoolss_init_cb(void *ptr
)
804 struct messaging_context
*msg_ctx
= talloc_get_type_abort(
805 ptr
, struct messaging_context
);
806 return nt_printing_tdb_migrate(msg_ctx
);
809 static bool spoolss_shutdown_cb(void *ptr
)
811 srv_spoolss_cleanup();
816 /****************************************************************************
818 ****************************************************************************/
820 /* Declare prototype for build_options() to avoid having to run it through
821 mkproto.h. Mixing $(builddir) and $(srcdir) source files in the current
822 prototype generation system is too complicated. */
824 extern void build_options(bool screen
);
826 int main(int argc
,const char *argv
[])
828 /* shall I run as a daemon */
829 bool is_daemon
= false;
830 bool interactive
= false;
832 bool no_process_group
= false;
833 bool log_stdout
= false;
835 char *profile_level
= NULL
;
838 bool print_build_options
= False
;
843 OPT_NO_PROCESS_GROUP
,
846 struct poptOption long_options
[] = {
848 {"daemon", 'D', POPT_ARG_NONE
, NULL
, OPT_DAEMON
, "Become a daemon (default)" },
849 {"interactive", 'i', POPT_ARG_NONE
, NULL
, OPT_INTERACTIVE
, "Run interactive (not a daemon)"},
850 {"foreground", 'F', POPT_ARG_NONE
, NULL
, OPT_FORK
, "Run daemon in foreground (for daemontools, etc.)" },
851 {"no-process-group", '\0', POPT_ARG_NONE
, NULL
, OPT_NO_PROCESS_GROUP
, "Don't create a new process group" },
852 {"log-stdout", 'S', POPT_ARG_NONE
, NULL
, OPT_LOG_STDOUT
, "Log to stdout" },
853 {"build-options", 'b', POPT_ARG_NONE
, NULL
, 'b', "Print build options" },
854 {"port", 'p', POPT_ARG_STRING
, &ports
, 0, "Listen on the specified ports"},
855 {"profiling-level", 'P', POPT_ARG_STRING
, &profile_level
, 0, "Set profiling level","PROFILE_LEVEL"},
857 POPT_COMMON_DYNCONFIG
860 struct smbd_parent_context
*parent
= NULL
;
864 struct rpc_srv_callbacks spoolss_cb
;
867 * Do this before any other talloc operation
869 talloc_enable_null_tracking();
870 frame
= talloc_stackframe();
874 /* Initialize the event context, it will panic on error */
875 smbd_event_context();
881 #ifdef HAVE_SET_AUTH_PARAMETERS
882 set_auth_parameters(argc
,argv
);
885 pc
= poptGetContext("smbd", argc
, argv
, long_options
, 0);
886 while((opt
= poptGetNextOpt(pc
)) != -1) {
891 case OPT_INTERACTIVE
:
897 case OPT_NO_PROCESS_GROUP
:
898 no_process_group
= true;
904 print_build_options
= True
;
907 d_fprintf(stderr
, "\nInvalid option %s: %s\n\n",
908 poptBadOption(pc
, 0), poptStrerror(opt
));
909 poptPrintUsage(pc
, stderr
, 0);
921 setup_logging(argv
[0], DEBUG_STDOUT
);
923 setup_logging(argv
[0], DEBUG_FILE
);
926 if (print_build_options
) {
927 build_options(True
); /* Display output to screen as well as debug */
932 /* needed for SecureWare on SCO */
936 set_remote_machine_name("smbd", False
);
938 if (interactive
&& (DEBUGLEVEL
>= 9)) {
939 talloc_enable_leak_report();
942 if (log_stdout
&& Fork
) {
943 DEBUG(0,("ERROR: Can't log to stdout (-S) unless daemon is in foreground (-F) or interactive (-i)\n"));
947 /* we want to re-seed early to prevent time delays causing
948 client problems at a later date. (tridge) */
949 generate_random_buffer(NULL
, 0);
951 /* get initial effective uid and gid */
954 /* make absolutely sure we run as root - to handle cases where people
955 are crazy enough to have it setuid */
956 gain_root_privilege();
957 gain_root_group_privilege();
959 fault_setup((void (*)(void *))exit_server_fault
);
960 dump_core_setup("smbd");
962 /* we are never interested in SIGPIPE */
963 BlockSignals(True
,SIGPIPE
);
966 /* we are never interested in SIGFPE */
967 BlockSignals(True
,SIGFPE
);
971 /* We are no longer interested in USR2 */
972 BlockSignals(True
,SIGUSR2
);
975 /* POSIX demands that signals are inherited. If the invoking process has
976 * these signals masked, we will have problems, as we won't recieve them. */
977 BlockSignals(False
, SIGHUP
);
978 BlockSignals(False
, SIGUSR1
);
979 BlockSignals(False
, SIGTERM
);
981 /* Ensure we leave no zombies until we
982 * correctly set up child handling below. */
986 /* we want total control over the permissions on created files,
987 so set our umask to 0 */
992 DEBUG(0,("smbd version %s started.\n", samba_version_string()));
993 DEBUGADD(0,("%s\n", COPYRIGHT_STARTUP_MESSAGE
));
995 DEBUG(2,("uid=%d gid=%d euid=%d egid=%d\n",
996 (int)getuid(),(int)getgid(),(int)geteuid(),(int)getegid()));
998 /* Output the build options to the debug log */
999 build_options(False
);
1001 if (sizeof(uint16
) < 2 || sizeof(uint32
) < 4) {
1002 DEBUG(0,("ERROR: Samba is not configured correctly for the word size on your machine\n"));
1006 if (!lp_load_initial_only(get_dyn_CONFIGFILE())) {
1007 DEBUG(0, ("error opening config file\n"));
1011 /* Init the security context and global current_user */
1014 if (smbd_messaging_context() == NULL
)
1018 * Reloading of the printers will not work here as we don't have a
1019 * server info and rpc services set up. It will be called later.
1021 if (!reload_services(smbd_messaging_context(), -1, False
)) {
1025 /* ...NOTE... Log files are working from this point! */
1027 DEBUG(3,("loaded services\n"));
1032 if (!profile_setup(smbd_messaging_context(), False
)) {
1033 DEBUG(0,("ERROR: failed to setup profiling\n"));
1036 if (profile_level
!= NULL
) {
1037 int pl
= atoi(profile_level
);
1038 struct server_id src
;
1040 DEBUG(1, ("setting profiling level: %s\n",profile_level
));
1042 set_profile_level(pl
, src
);
1046 if (!is_daemon
&& !is_a_socket(0)) {
1048 DEBUG(0,("standard input is not a socket, assuming -D option\n"));
1051 * Setting is_daemon here prevents us from eventually calling
1052 * the open_sockets_inetd()
1058 if (is_daemon
&& !interactive
) {
1059 DEBUG( 3, ( "Becoming a daemon.\n" ) );
1060 become_daemon(Fork
, no_process_group
, log_stdout
);
1063 generate_random_buffer((uint8_t *)&unique_id
, sizeof(unique_id
));
1064 set_my_unique_id(unique_id
);
1068 * If we're interactive we want to set our own process group for
1069 * signal management.
1071 if (interactive
&& !no_process_group
)
1072 setpgid( (pid_t
)0, (pid_t
)0);
1075 if (!directory_exist(lp_lockdir()))
1076 mkdir(lp_lockdir(), 0755);
1079 pidfile_create("smbd");
1081 status
= reinit_after_fork(smbd_messaging_context(),
1082 smbd_event_context(),
1083 procid_self(), false);
1084 if (!NT_STATUS_IS_OK(status
)) {
1085 DEBUG(0,("reinit_after_fork() failed\n"));
1089 smbd_server_conn
->msg_ctx
= smbd_messaging_context();
1091 smbd_setup_sig_term_handler();
1092 smbd_setup_sig_hup_handler(smbd_event_context(),
1093 smbd_server_conn
->msg_ctx
);
1095 /* Setup all the TDB's - including CLEAR_IF_FIRST tdb's. */
1097 if (smbd_memcache() == NULL
) {
1101 memcache_set_global(smbd_memcache());
1103 /* Initialise the password backed before the global_sam_sid
1104 to ensure that we fetch from ldap before we make a domain sid up */
1106 if(!initialize_password_db(False
, smbd_event_context()))
1109 if (!secrets_init()) {
1110 DEBUG(0, ("ERROR: smbd can not open secrets.tdb\n"));
1114 if (lp_server_role() == ROLE_DOMAIN_BDC
|| lp_server_role() == ROLE_DOMAIN_PDC
) {
1115 if (!open_schannel_session_store(NULL
, lp_private_dir())) {
1116 DEBUG(0,("ERROR: Samba cannot open schannel store for secured NETLOGON operations.\n"));
1121 if(!get_global_sam_sid()) {
1122 DEBUG(0,("ERROR: Samba cannot create a SAM SID.\n"));
1126 if (!sessionid_init()) {
1130 if (!connections_init(True
))
1133 if (!locking_init())
1136 if (!messaging_tdb_parent_init(smbd_event_context())) {
1140 if (!notify_internal_parent_init(smbd_event_context())) {
1144 if (!serverid_parent_init(smbd_event_context())) {
1148 if (!printer_list_parent_init()) {
1152 if (!W_ERROR_IS_OK(registry_init_full()))
1155 if (!print_backend_init(smbd_messaging_context()))
1159 if (!init_svcctl_db())
1163 /* Open the share_info.tdb here, so we don't have to open
1164 after the fork on every single connection. This is a small
1165 performance improvment and reduces the total number of system
1167 if (!share_info_db_init()) {
1168 DEBUG(0,("ERROR: failed to load share info db.\n"));
1172 if (!init_system_info()) {
1173 DEBUG(0,("ERROR: failed to setup system user info.\n"));
1177 if (!init_guest_info()) {
1178 DEBUG(0,("ERROR: failed to setup guest info.\n"));
1182 if (!file_init(smbd_server_conn
)) {
1183 DEBUG(0, ("ERROR: file_init failed\n"));
1188 * Initialize spoolss with an init function to convert printers first.
1189 * static_init_rpc will try to initialize the spoolss server too but you
1190 * can't register it twice.
1192 spoolss_cb
.init
= spoolss_init_cb
;
1193 spoolss_cb
.shutdown
= spoolss_shutdown_cb
;
1194 spoolss_cb
.private_data
= smbd_server_conn
->msg_ctx
;
1196 /* Spoolss depends on a winreg pipe, so start it first. */
1197 if (!NT_STATUS_IS_OK(rpc_winreg_init(NULL
))) {
1201 if (!NT_STATUS_IS_OK(rpc_spoolss_init(&spoolss_cb
))) {
1207 /* Publish nt printers, this requires a working winreg pipe */
1208 reload_printers(smbd_messaging_context());
1210 /* only start the background queue daemon if we are
1211 running as a daemon -- bad things will happen if
1212 smbd is launched via inetd and we fork a copy of
1215 if (is_daemon
&& !interactive
1216 && lp_parm_bool(-1, "smbd", "backgroundqueue", true)) {
1217 start_background_queue(smbd_event_context(),
1218 smbd_messaging_context());
1225 /* Started from inetd. fd 0 is the socket. */
1226 /* We will abort gracefully when the client or remote system
1228 smbd_set_server_fd(dup(0));
1230 /* close our standard file descriptors */
1231 close_low_fds(False
); /* Don't close stderr */
1238 smbd_setup_sig_chld_handler();
1240 smbd_process(smbd_server_conn
);
1242 exit_server_cleanly(NULL
);
1246 parent
= talloc_zero(smbd_event_context(), struct smbd_parent_context
);
1248 exit_server("talloc(struct smbd_parent_context) failed");
1250 parent
->interactive
= interactive
;
1252 if (!open_sockets_smbd(parent
, smbd_messaging_context(), ports
))
1253 exit_server("open_sockets_smbd() failed");
1256 /* make sure we always have a valid stackframe */
1257 frame
= talloc_stackframe();
1259 smbd_parent_loop(parent
);
1261 exit_server_cleanly(NULL
);