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 "system/filesys.h"
26 #include "lib/util/server_id.h"
27 #include "popt_common.h"
28 #include "smbd/smbd.h"
29 #include "smbd/globals.h"
30 #include "registry/reg_init_full.h"
31 #include "libcli/auth/schannel.h"
33 #include "../lib/util/memcache.h"
34 #include "ctdbd_conn.h"
35 #include "util_cluster.h"
36 #include "printing/queue_process.h"
37 #include "rpc_server/rpc_service_setup.h"
38 #include "rpc_server/rpc_config.h"
42 #include "messages_ctdb.h"
43 #include "smbprofile.h"
44 #include "lib/id_cache.h"
45 #include "lib/param/param.h"
46 #include "lib/background.h"
47 #include "lib/conn_tdb.h"
48 #include "../lib/util/pidfile.h"
49 #include "lib/smbd_shim.h"
50 #include "scavenger.h"
51 #include "locking/leases_db.h"
52 #include "smbd/notifyd/notifyd.h"
53 #include "smbd/smbd_cleanupd.h"
54 #include "lib/util/sys_rw.h"
55 #include "cleanupdb.h"
58 #ifdef CLUSTER_SUPPORT
59 #include "ctdb_protocol.h"
62 struct smbd_open_socket
;
63 struct smbd_child_pid
;
65 struct smbd_parent_context
{
68 struct tevent_context
*ev_ctx
;
69 struct messaging_context
*msg_ctx
;
71 /* the list of listening sockets */
72 struct smbd_open_socket
*sockets
;
74 /* the list of current child processes */
75 struct smbd_child_pid
*children
;
78 struct server_id cleanupd
;
79 struct server_id notifyd
;
81 struct tevent_timer
*cleanup_te
;
84 struct smbd_open_socket
{
85 struct smbd_open_socket
*prev
, *next
;
86 struct smbd_parent_context
*parent
;
88 struct tevent_fd
*fde
;
91 struct smbd_child_pid
{
92 struct smbd_child_pid
*prev
, *next
;
96 extern void start_epmd(struct tevent_context
*ev_ctx
,
97 struct messaging_context
*msg_ctx
);
99 extern void start_lsasd(struct tevent_context
*ev_ctx
,
100 struct messaging_context
*msg_ctx
);
102 extern void start_fssd(struct tevent_context
*ev_ctx
,
103 struct messaging_context
*msg_ctx
);
105 extern void start_mdssd(struct tevent_context
*ev_ctx
,
106 struct messaging_context
*msg_ctx
);
108 /*******************************************************************
109 What to do when smb.conf is updated.
110 ********************************************************************/
112 static void smbd_parent_conf_updated(struct messaging_context
*msg
,
115 struct server_id server_id
,
118 struct tevent_context
*ev_ctx
=
119 talloc_get_type_abort(private_data
, struct tevent_context
);
121 DEBUG(10,("smbd_parent_conf_updated: Got message saying smb.conf was "
122 "updated. Reloading.\n"));
123 change_to_root_user();
124 reload_services(NULL
, NULL
, false);
125 printing_subsystem_update(ev_ctx
, msg
, false);
128 /*******************************************************************
129 Delete a statcache entry.
130 ********************************************************************/
132 static void smb_stat_cache_delete(struct messaging_context
*msg
,
135 struct server_id server_id
,
138 const char *name
= (const char *)data
->data
;
139 DEBUG(10,("smb_stat_cache_delete: delete name %s\n", name
));
140 stat_cache_delete(name
);
143 /****************************************************************************
144 Send a SIGTERM to our process group.
145 *****************************************************************************/
147 static void killkids(void)
149 if(am_parent
) kill(0,SIGTERM
);
152 static void msg_exit_server(struct messaging_context
*msg
,
155 struct server_id server_id
,
158 DEBUG(3, ("got a SHUTDOWN message\n"));
159 exit_server_cleanly(NULL
);
163 static void msg_inject_fault(struct messaging_context
*msg
,
166 struct server_id src
,
170 struct server_id_buf tmp
;
172 if (data
->length
!= sizeof(sig
)) {
173 DEBUG(0, ("Process %s sent bogus signal injection request\n",
174 server_id_str_buf(src
, &tmp
)));
178 sig
= *(int *)data
->data
;
180 exit_server("internal error injected");
185 DEBUG(0, ("Process %s requested injection of signal %d (%s)\n",
186 server_id_str_buf(src
, &tmp
), sig
, strsignal(sig
)));
188 DEBUG(0, ("Process %s requested injection of signal %d\n",
189 server_id_str_buf(src
, &tmp
), sig
));
194 #endif /* DEVELOPER */
196 static NTSTATUS
messaging_send_to_children(struct messaging_context
*msg_ctx
,
197 uint32_t msg_type
, DATA_BLOB
* data
)
200 struct smbd_parent_context
*parent
= am_parent
;
201 struct smbd_child_pid
*child
;
203 if (parent
== NULL
) {
204 return NT_STATUS_INTERNAL_ERROR
;
207 for (child
= parent
->children
; child
!= NULL
; child
= child
->next
) {
208 status
= messaging_send(parent
->msg_ctx
,
209 pid_to_procid(child
->pid
),
211 if (!NT_STATUS_IS_OK(status
)) {
212 DBG_DEBUG("messaging_send(%d) failed: %s\n",
213 (int)child
->pid
, nt_errstr(status
));
219 static void smb_parent_send_to_children(struct messaging_context
*ctx
,
222 struct server_id srv_id
,
225 messaging_send_to_children(ctx
, msg_type
, msg_data
);
229 * Parent smbd process sets its own debug level first and then
230 * sends a message to all the smbd children to adjust their debug
231 * level to that of the parent.
234 static void smbd_msg_debug(struct messaging_context
*msg_ctx
,
237 struct server_id server_id
,
240 debug_message(msg_ctx
, private_data
, MSG_DEBUG
, server_id
, data
);
242 messaging_send_to_children(msg_ctx
, MSG_DEBUG
, data
);
245 static void smbd_parent_id_cache_kill(struct messaging_context
*msg_ctx
,
248 struct server_id server_id
,
251 const char *msg
= (data
&& data
->data
)
252 ? (const char *)data
->data
: "<NULL>";
253 struct id_cache_ref id
;
255 if (!id_cache_ref_parse(msg
, &id
)) {
256 DEBUG(0, ("Invalid ?ID: %s\n", msg
));
260 id_cache_delete_from_cache(&id
);
262 messaging_send_to_children(msg_ctx
, msg_type
, data
);
265 static void smbd_parent_id_cache_delete(struct messaging_context
*ctx
,
268 struct server_id srv_id
,
271 id_cache_delete_message(ctx
, data
, msg_type
, srv_id
, msg_data
);
273 messaging_send_to_children(ctx
, msg_type
, msg_data
);
276 #ifdef CLUSTER_SUPPORT
277 static int smbd_parent_ctdb_reconfigured(
278 struct tevent_context
*ev
,
279 uint32_t src_vnn
, uint32_t dst_vnn
, uint64_t dst_srvid
,
280 const uint8_t *msg
, size_t msglen
, void *private_data
)
282 struct messaging_context
*msg_ctx
= talloc_get_type_abort(
283 private_data
, struct messaging_context
);
285 DEBUG(10, ("Got %s message\n", (dst_srvid
== CTDB_SRVID_RECONFIGURE
)
286 ? "cluster reconfigure" : "SAMBA_NOTIFY"));
289 * Someone from the family died, validate our locks
293 messaging_send_buf(msg_ctx
, am_parent
->cleanupd
,
294 MSG_SMB_BRL_VALIDATE
, NULL
, 0);
301 static void add_child_pid(struct smbd_parent_context
*parent
,
304 struct smbd_child_pid
*child
;
306 child
= talloc_zero(parent
, struct smbd_child_pid
);
308 DEBUG(0, ("Could not add child struct -- malloc failed\n"));
312 DLIST_ADD(parent
->children
, child
);
313 parent
->num_children
+= 1;
316 static void smb_tell_num_children(struct messaging_context
*ctx
, void *data
,
317 uint32_t msg_type
, struct server_id srv_id
,
320 uint8_t buf
[sizeof(uint32_t)];
323 SIVAL(buf
, 0, am_parent
->num_children
);
324 messaging_send_buf(ctx
, srv_id
, MSG_SMB_NUM_CHILDREN
,
329 static void notifyd_stopped(struct tevent_req
*req
);
331 static struct tevent_req
*notifyd_req(struct messaging_context
*msg_ctx
,
332 struct tevent_context
*ev
)
334 struct tevent_req
*req
;
335 sys_notify_watch_fn sys_notify_watch
= NULL
;
336 struct sys_notify_context
*sys_notify_ctx
= NULL
;
337 struct ctdbd_connection
*ctdbd_conn
= NULL
;
339 if (lp_kernel_change_notify()) {
342 if (lp_parm_bool(-1, "notify", "inotify", true)) {
343 sys_notify_watch
= inotify_watch
;
348 if (lp_parm_bool(-1, "notify", "fam",
349 (sys_notify_watch
== NULL
))) {
350 sys_notify_watch
= fam_watch
;
355 if (sys_notify_watch
!= NULL
) {
356 sys_notify_ctx
= sys_notify_context_create(msg_ctx
, ev
);
357 if (sys_notify_ctx
== NULL
) {
362 if (lp_clustering()) {
363 ctdbd_conn
= messaging_ctdb_connection();
366 req
= notifyd_send(msg_ctx
, ev
, msg_ctx
, ctdbd_conn
,
367 sys_notify_watch
, sys_notify_ctx
);
369 TALLOC_FREE(sys_notify_ctx
);
372 tevent_req_set_callback(req
, notifyd_stopped
, msg_ctx
);
377 static void notifyd_stopped(struct tevent_req
*req
)
381 ret
= notifyd_recv(req
);
383 DEBUG(1, ("notifyd stopped: %s\n", strerror(ret
)));
386 static bool smbd_notifyd_init(struct messaging_context
*msg
, bool interactive
,
387 struct server_id
*ppid
)
389 struct tevent_context
*ev
= messaging_tevent_context(msg
);
390 struct tevent_req
*req
;
396 req
= notifyd_req(msg
, ev
);
397 return (req
!= NULL
);
402 DEBUG(1, ("%s: fork failed: %s\n", __func__
,
408 if (am_parent
!= 0) {
409 add_child_pid(am_parent
, pid
);
411 *ppid
= pid_to_procid(pid
);
415 status
= smbd_reinit_after_fork(msg
, ev
, true, "smbd-notifyd");
416 if (!NT_STATUS_IS_OK(status
)) {
417 DEBUG(1, ("%s: reinit_after_fork failed: %s\n",
418 __func__
, nt_errstr(status
)));
422 req
= notifyd_req(msg
, ev
);
426 tevent_req_set_callback(req
, notifyd_stopped
, msg
);
428 /* Block those signals that we are not handling */
429 BlockSignals(True
, SIGHUP
);
430 BlockSignals(True
, SIGUSR1
);
432 messaging_send(msg
, pid_to_procid(getppid()), MSG_SMB_NOTIFY_STARTED
,
435 ok
= tevent_req_poll(req
, ev
);
437 DBG_WARNING("tevent_req_poll returned %s\n", strerror(errno
));
443 static void notifyd_init_trigger(struct tevent_req
*req
);
445 struct notifyd_init_state
{
447 struct tevent_context
*ev
;
448 struct messaging_context
*msg
;
449 struct server_id
*ppid
;
452 static struct tevent_req
*notifyd_init_send(struct tevent_context
*ev
,
454 struct messaging_context
*msg
,
455 struct server_id
*ppid
)
457 struct tevent_req
*req
= NULL
;
458 struct tevent_req
*subreq
= NULL
;
459 struct notifyd_init_state
*state
= NULL
;
461 req
= tevent_req_create(mem_ctx
, &state
, struct notifyd_init_state
);
466 *state
= (struct notifyd_init_state
) {
472 subreq
= tevent_wakeup_send(state
, ev
, tevent_timeval_current_ofs(1, 0));
473 if (tevent_req_nomem(subreq
, req
)) {
474 return tevent_req_post(req
, ev
);
477 tevent_req_set_callback(subreq
, notifyd_init_trigger
, req
);
481 static void notifyd_init_trigger(struct tevent_req
*subreq
)
483 struct tevent_req
*req
= tevent_req_callback_data(
484 subreq
, struct tevent_req
);
485 struct notifyd_init_state
*state
= tevent_req_data(
486 req
, struct notifyd_init_state
);
489 DBG_NOTICE("Triggering notifyd startup\n");
491 ok
= tevent_wakeup_recv(subreq
);
494 tevent_req_error(req
, ENOMEM
);
498 state
->ok
= smbd_notifyd_init(state
->msg
, false, state
->ppid
);
500 DBG_WARNING("notifyd restarted\n");
501 tevent_req_done(req
);
505 DBG_NOTICE("notifyd startup failed, rescheduling\n");
507 subreq
= tevent_wakeup_send(state
, state
->ev
,
508 tevent_timeval_current_ofs(1, 0));
509 if (tevent_req_nomem(subreq
, req
)) {
510 DBG_ERR("scheduling notifyd restart failed, giving up\n");
514 tevent_req_set_callback(subreq
, notifyd_init_trigger
, req
);
518 static bool notifyd_init_recv(struct tevent_req
*req
)
520 struct notifyd_init_state
*state
= tevent_req_data(
521 req
, struct notifyd_init_state
);
526 static void notifyd_started(struct tevent_req
*req
)
530 ok
= notifyd_init_recv(req
);
533 DBG_ERR("Failed to restart notifyd, giving up\n");
538 static void cleanupd_stopped(struct tevent_req
*req
);
540 static bool cleanupd_init(struct messaging_context
*msg
, bool interactive
,
541 struct server_id
*ppid
)
543 struct tevent_context
*ev
= messaging_tevent_context(msg
);
544 struct server_id parent_id
= messaging_server_id(msg
);
545 struct tevent_req
*req
;
555 req
= smbd_cleanupd_send(msg
, ev
, msg
, parent_id
.pid
);
556 *ppid
= messaging_server_id(msg
);
557 return (req
!= NULL
);
562 DBG_WARNING("pipe failed: %s\n", strerror(errno
));
568 DBG_WARNING("fork failed: %s\n", strerror(errno
));
577 rwret
= sys_read(up_pipe
[0], &c
, 1);
581 DBG_WARNING("sys_read failed: %s\n", strerror(errno
));
585 DBG_WARNING("cleanupd could not start\n");
589 DBG_WARNING("cleanupd returned %d\n", (int)c
);
593 DBG_DEBUG("Started cleanupd pid=%d\n", (int)pid
);
595 if (am_parent
!= NULL
) {
596 add_child_pid(am_parent
, pid
);
599 *ppid
= pid_to_procid(pid
);
605 status
= smbd_reinit_after_fork(msg
, ev
, true, "cleanupd");
606 if (!NT_STATUS_IS_OK(status
)) {
607 DBG_WARNING("reinit_after_fork failed: %s\n",
610 sys_write(up_pipe
[1], &c
, 1);
615 req
= smbd_cleanupd_send(msg
, ev
, msg
, parent_id
.pid
);
617 DBG_WARNING("smbd_cleanupd_send failed\n");
619 sys_write(up_pipe
[1], &c
, 1);
624 tevent_req_set_callback(req
, cleanupd_stopped
, msg
);
627 rwret
= sys_write(up_pipe
[1], &c
, 1);
631 DBG_WARNING("sys_write failed: %s\n", strerror(errno
));
635 DBG_WARNING("sys_write could not write result\n");
639 ok
= tevent_req_poll(req
, ev
);
641 DBG_WARNING("tevent_req_poll returned %s\n", strerror(errno
));
646 static void cleanupd_stopped(struct tevent_req
*req
)
650 status
= smbd_cleanupd_recv(req
);
651 DBG_WARNING("cleanupd stopped: %s\n", nt_errstr(status
));
654 static void cleanupd_init_trigger(struct tevent_req
*req
);
656 struct cleanup_init_state
{
658 struct tevent_context
*ev
;
659 struct messaging_context
*msg
;
660 struct server_id
*ppid
;
663 static struct tevent_req
*cleanupd_init_send(struct tevent_context
*ev
,
665 struct messaging_context
*msg
,
666 struct server_id
*ppid
)
668 struct tevent_req
*req
= NULL
;
669 struct tevent_req
*subreq
= NULL
;
670 struct cleanup_init_state
*state
= NULL
;
672 req
= tevent_req_create(mem_ctx
, &state
, struct cleanup_init_state
);
677 *state
= (struct cleanup_init_state
) {
683 subreq
= tevent_wakeup_send(state
, ev
, tevent_timeval_current_ofs(0, 0));
684 if (tevent_req_nomem(subreq
, req
)) {
685 return tevent_req_post(req
, ev
);
688 tevent_req_set_callback(subreq
, cleanupd_init_trigger
, req
);
692 static void cleanupd_init_trigger(struct tevent_req
*subreq
)
694 struct tevent_req
*req
= tevent_req_callback_data(
695 subreq
, struct tevent_req
);
696 struct cleanup_init_state
*state
= tevent_req_data(
697 req
, struct cleanup_init_state
);
700 DBG_NOTICE("Triggering cleanupd startup\n");
702 ok
= tevent_wakeup_recv(subreq
);
705 tevent_req_error(req
, ENOMEM
);
709 state
->ok
= cleanupd_init(state
->msg
, false, state
->ppid
);
711 DBG_WARNING("cleanupd restarted\n");
712 tevent_req_done(req
);
716 DBG_NOTICE("cleanupd startup failed, rescheduling\n");
718 subreq
= tevent_wakeup_send(state
, state
->ev
,
719 tevent_timeval_current_ofs(1, 0));
720 if (tevent_req_nomem(subreq
, req
)) {
721 DBG_ERR("scheduling cleanupd restart failed, giving up\n");
725 tevent_req_set_callback(subreq
, cleanupd_init_trigger
, req
);
729 static bool cleanupd_init_recv(struct tevent_req
*req
)
731 struct cleanup_init_state
*state
= tevent_req_data(
732 req
, struct cleanup_init_state
);
738 at most every smbd:cleanuptime seconds (default 20), we scan the BRL
739 and locking database for entries to cleanup. As a side effect this
740 also cleans up dead entries in the connections database (due to the
741 traversal in message_send_all()
743 Using a timer for this prevents a flood of traversals when a large
744 number of clients disconnect at the same time (perhaps due to a
748 static void cleanup_timeout_fn(struct tevent_context
*event_ctx
,
749 struct tevent_timer
*te
,
753 struct smbd_parent_context
*parent
=
754 talloc_get_type_abort(private_data
,
755 struct smbd_parent_context
);
757 parent
->cleanup_te
= NULL
;
759 messaging_send_buf(parent
->msg_ctx
, parent
->cleanupd
,
760 MSG_SMB_UNLOCK
, NULL
, 0);
763 static void cleanupd_started(struct tevent_req
*req
)
767 struct smbd_parent_context
*parent
= tevent_req_callback_data(
768 req
, struct smbd_parent_context
);
770 ok
= cleanupd_init_recv(req
);
773 DBG_ERR("Failed to restart cleanupd, giving up\n");
777 status
= messaging_send(parent
->msg_ctx
,
779 MSG_SMB_NOTIFY_CLEANUP
,
781 if (!NT_STATUS_IS_OK(status
)) {
782 DBG_ERR("messaging_send returned %s\n",
787 static void remove_child_pid(struct smbd_parent_context
*parent
,
789 bool unclean_shutdown
)
791 struct smbd_child_pid
*child
;
795 for (child
= parent
->children
; child
!= NULL
; child
= child
->next
) {
796 if (child
->pid
== pid
) {
797 struct smbd_child_pid
*tmp
= child
;
798 DLIST_REMOVE(parent
->children
, child
);
800 parent
->num_children
-= 1;
806 /* not all forked child processes are added to the children list */
807 DEBUG(2, ("Could not find child %d -- ignoring\n", (int)pid
));
811 if (pid
== procid_to_pid(&parent
->cleanupd
)) {
812 struct tevent_req
*req
;
814 server_id_set_disconnected(&parent
->cleanupd
);
816 DBG_WARNING("Restarting cleanupd\n");
817 req
= cleanupd_init_send(messaging_tevent_context(parent
->msg_ctx
),
822 DBG_ERR("Failed to restart cleanupd\n");
825 tevent_req_set_callback(req
, cleanupd_started
, parent
);
829 if (pid
== procid_to_pid(&parent
->notifyd
)) {
830 struct tevent_req
*req
;
831 struct tevent_context
*ev
= messaging_tevent_context(
834 server_id_set_disconnected(&parent
->notifyd
);
836 DBG_WARNING("Restarting notifyd\n");
837 req
= notifyd_init_send(ev
,
842 DBG_ERR("Failed to restart notifyd\n");
845 tevent_req_set_callback(req
, notifyd_started
, parent
);
849 ok
= cleanupdb_store_child(pid
, unclean_shutdown
);
851 DBG_ERR("cleanupdb_store_child failed\n");
855 if (!server_id_is_disconnected(&parent
->cleanupd
)) {
856 status
= messaging_send(parent
->msg_ctx
,
858 MSG_SMB_NOTIFY_CLEANUP
,
860 if (!NT_STATUS_IS_OK(status
)) {
861 DBG_ERR("messaging_send returned %s\n",
866 if (unclean_shutdown
) {
867 /* a child terminated uncleanly so tickle all
868 processes to see if they can grab any of the
871 DEBUG(3,(__location__
" Unclean shutdown of pid %u\n",
873 if (parent
->cleanup_te
== NULL
) {
874 /* call the cleanup timer, but not too often */
875 int cleanup_time
= lp_parm_int(-1, "smbd", "cleanuptime", 20);
876 parent
->cleanup_te
= tevent_add_timer(parent
->ev_ctx
,
878 timeval_current_ofs(cleanup_time
, 0),
881 DEBUG(1,("Scheduled cleanup of brl and lock database after unclean shutdown\n"));
886 /****************************************************************************
887 Have we reached the process limit ?
888 ****************************************************************************/
890 static bool allowable_number_of_smbd_processes(struct smbd_parent_context
*parent
)
892 int max_processes
= lp_max_smbd_processes();
897 return parent
->num_children
< max_processes
;
900 static void smbd_sig_chld_handler(struct tevent_context
*ev
,
901 struct tevent_signal
*se
,
909 struct smbd_parent_context
*parent
=
910 talloc_get_type_abort(private_data
,
911 struct smbd_parent_context
);
913 while ((pid
= waitpid(-1, &status
, WNOHANG
)) > 0) {
914 bool unclean_shutdown
= False
;
916 /* If the child terminated normally, assume
917 it was an unclean shutdown unless the
920 if (WIFEXITED(status
)) {
921 unclean_shutdown
= WEXITSTATUS(status
);
923 /* If the child terminated due to a signal
924 we always assume it was unclean.
926 if (WIFSIGNALED(status
)) {
927 unclean_shutdown
= True
;
929 remove_child_pid(parent
, pid
, unclean_shutdown
);
933 static void smbd_setup_sig_chld_handler(struct smbd_parent_context
*parent
)
935 struct tevent_signal
*se
;
937 se
= tevent_add_signal(parent
->ev_ctx
,
938 parent
, /* mem_ctx */
940 smbd_sig_chld_handler
,
943 exit_server("failed to setup SIGCHLD handler");
947 static void smbd_open_socket_close_fn(struct tevent_context
*ev
,
948 struct tevent_fd
*fde
,
952 /* this might be the socket_wrapper swrap_close() */
956 static void smbd_accept_connection(struct tevent_context
*ev
,
957 struct tevent_fd
*fde
,
961 struct smbd_open_socket
*s
= talloc_get_type_abort(private_data
,
962 struct smbd_open_socket
);
963 struct messaging_context
*msg_ctx
= s
->parent
->msg_ctx
;
964 struct sockaddr_storage addr
;
965 socklen_t in_addrlen
= sizeof(addr
);
969 fd
= accept(s
->fd
, (struct sockaddr
*)(void *)&addr
,&in_addrlen
);
970 if (fd
== -1 && errno
== EINTR
)
974 DEBUG(0,("accept: %s\n",
978 smb_set_close_on_exec(fd
);
980 if (s
->parent
->interactive
) {
981 reinit_after_fork(msg_ctx
, ev
, true, NULL
);
982 smbd_process(ev
, msg_ctx
, fd
, true);
983 exit_server_cleanly("end of interactive mode");
987 if (!allowable_number_of_smbd_processes(s
->parent
)) {
994 NTSTATUS status
= NT_STATUS_OK
;
997 * Can't use TALLOC_FREE here. Nulling out the argument to it
998 * would overwrite memory we've just freed.
1000 talloc_free(s
->parent
);
1003 /* Stop zombies, the parent explicitly handles
1004 * them, counting worker smbds. */
1007 status
= smbd_reinit_after_fork(msg_ctx
, ev
, true, NULL
);
1008 if (!NT_STATUS_IS_OK(status
)) {
1009 if (NT_STATUS_EQUAL(status
,
1010 NT_STATUS_TOO_MANY_OPENED_FILES
)) {
1011 DEBUG(0,("child process cannot initialize "
1012 "because too many files are open\n"));
1015 if (lp_clustering() &&
1017 status
, NT_STATUS_INTERNAL_DB_ERROR
) ||
1019 status
, NT_STATUS_CONNECTION_REFUSED
))) {
1020 DEBUG(1, ("child process cannot initialize "
1021 "because connection to CTDB "
1023 nt_errstr(status
)));
1027 DEBUG(0,("reinit_after_fork() failed\n"));
1028 smb_panic("reinit_after_fork() failed");
1031 smbd_process(ev
, msg_ctx
, fd
, false);
1033 exit_server_cleanly("end of child");
1038 DEBUG(0,("smbd_accept_connection: fork() failed: %s\n",
1042 /* The parent doesn't need this socket */
1045 /* Sun May 6 18:56:14 2001 ackley@cs.unm.edu:
1046 Clear the closed fd info out of server_fd --
1047 and more importantly, out of client_fd in
1048 util_sock.c, to avoid a possible
1049 getpeername failure if we reopen the logs
1050 and use %I in the filename.
1054 add_child_pid(s
->parent
, pid
);
1057 /* Force parent to check log size after
1058 * spawning child. Fix from
1059 * klausr@ITAP.Physik.Uni-Stuttgart.De. The
1060 * parent smbd will log to logserver.smb. It
1061 * writes only two messages for each child
1062 * started/finished. But each child writes,
1063 * say, 50 messages also in logserver.smb,
1064 * begining with the debug_count of the
1065 * parent, before the child opens its own log
1066 * file logserver.client. In a worst case
1067 * scenario the size of logserver.smb would be
1068 * checked after about 50*50=2500 messages
1071 force_check_log_size();
1074 static bool smbd_open_one_socket(struct smbd_parent_context
*parent
,
1075 struct tevent_context
*ev_ctx
,
1076 const struct sockaddr_storage
*ifss
,
1079 struct smbd_open_socket
*s
;
1081 s
= talloc(parent
, struct smbd_open_socket
);
1087 s
->fd
= open_socket_in(SOCK_STREAM
,
1089 parent
->sockets
== NULL
? 0 : 2,
1093 DEBUG(0,("smbd_open_one_socket: open_socket_in: "
1094 "%s\n", strerror(errno
)));
1097 * We ignore an error here, as we've done before
1102 /* ready to listen */
1103 set_socket_options(s
->fd
, "SO_KEEPALIVE");
1104 set_socket_options(s
->fd
, lp_socket_options());
1106 /* Set server socket to
1107 * non-blocking for the accept. */
1108 set_blocking(s
->fd
, False
);
1110 if (listen(s
->fd
, SMBD_LISTEN_BACKLOG
) == -1) {
1111 DEBUG(0,("smbd_open_one_socket: listen: "
1112 "%s\n", strerror(errno
)));
1118 s
->fde
= tevent_add_fd(ev_ctx
,
1120 s
->fd
, TEVENT_FD_READ
,
1121 smbd_accept_connection
,
1124 DEBUG(0,("smbd_open_one_socket: "
1125 "tevent_add_fd: %s\n",
1131 tevent_fd_set_close_fn(s
->fde
, smbd_open_socket_close_fn
);
1133 DLIST_ADD_END(parent
->sockets
, s
);
1138 /****************************************************************************
1139 Open the socket communication.
1140 ****************************************************************************/
1142 static bool open_sockets_smbd(struct smbd_parent_context
*parent
,
1143 struct tevent_context
*ev_ctx
,
1144 struct messaging_context
*msg_ctx
,
1145 const char *smb_ports
)
1147 int num_interfaces
= iface_count();
1150 unsigned dns_port
= 0;
1157 smbd_setup_sig_chld_handler(parent
);
1159 ports
= lp_smb_ports();
1161 /* use a reasonable default set of ports - listing on 445 and 139 */
1164 l
= str_list_make_v3(talloc_tos(), smb_ports
, NULL
);
1165 ports
= discard_const_p(const char *, l
);
1168 for (j
= 0; ports
&& ports
[j
]; j
++) {
1169 unsigned port
= atoi(ports
[j
]);
1171 if (port
== 0 || port
> 0xffff) {
1172 exit_server_cleanly("Invalid port in the config or on "
1173 "the commandline specified!");
1177 if (lp_interfaces() && lp_bind_interfaces_only()) {
1178 /* We have been given an interfaces line, and been
1179 told to only bind to those interfaces. Create a
1180 socket per interface and bind to only these.
1183 /* Now open a listen socket for each of the
1185 for(i
= 0; i
< num_interfaces
; i
++) {
1186 const struct sockaddr_storage
*ifss
=
1187 iface_n_sockaddr_storage(i
);
1189 DEBUG(0,("open_sockets_smbd: "
1190 "interface %d has NULL IP address !\n",
1195 for (j
= 0; ports
&& ports
[j
]; j
++) {
1196 unsigned port
= atoi(ports
[j
]);
1198 /* Keep the first port for mDNS service
1201 if (dns_port
== 0) {
1205 if (!smbd_open_one_socket(parent
,
1214 /* Just bind to 0.0.0.0 - accept connections
1217 const char *sock_addr
;
1219 const char *sock_ptr
;
1222 sock_addr
= "::,0.0.0.0";
1224 sock_addr
= "0.0.0.0";
1227 for (sock_ptr
=sock_addr
;
1228 next_token_talloc(talloc_tos(), &sock_ptr
, &sock_tok
, " \t,"); ) {
1229 for (j
= 0; ports
&& ports
[j
]; j
++) {
1230 struct sockaddr_storage ss
;
1231 unsigned port
= atoi(ports
[j
]);
1233 /* Keep the first port for mDNS service
1236 if (dns_port
== 0) {
1240 /* open an incoming socket */
1241 if (!interpret_string_addr(&ss
, sock_tok
,
1242 AI_NUMERICHOST
|AI_PASSIVE
)) {
1247 * If we fail to open any sockets
1248 * in this loop the parent-sockets == NULL
1249 * case below will prevent us from starting.
1252 (void)smbd_open_one_socket(parent
,
1260 if (parent
->sockets
== NULL
) {
1261 DEBUG(0,("open_sockets_smbd: No "
1262 "sockets available to bind to.\n"));
1266 /* Listen to messages */
1268 messaging_register(msg_ctx
, NULL
, MSG_SHUTDOWN
, msg_exit_server
);
1269 messaging_register(msg_ctx
, ev_ctx
, MSG_SMB_CONF_UPDATED
,
1270 smbd_parent_conf_updated
);
1271 messaging_register(msg_ctx
, NULL
, MSG_SMB_STAT_CACHE_DELETE
,
1272 smb_stat_cache_delete
);
1273 messaging_register(msg_ctx
, NULL
, MSG_DEBUG
, smbd_msg_debug
);
1274 messaging_register(msg_ctx
, NULL
, MSG_SMB_FORCE_TDIS
,
1275 smb_parent_send_to_children
);
1276 messaging_register(msg_ctx
, NULL
, MSG_SMB_KILL_CLIENT_IP
,
1277 smb_parent_send_to_children
);
1278 messaging_register(msg_ctx
, NULL
, MSG_SMB_TELL_NUM_CHILDREN
,
1279 smb_tell_num_children
);
1281 messaging_register(msg_ctx
, NULL
,
1282 ID_CACHE_DELETE
, smbd_parent_id_cache_delete
);
1283 messaging_register(msg_ctx
, NULL
,
1284 ID_CACHE_KILL
, smbd_parent_id_cache_kill
);
1285 messaging_register(msg_ctx
, NULL
, MSG_SMB_NOTIFY_STARTED
,
1286 smb_parent_send_to_children
);
1288 #ifdef CLUSTER_SUPPORT
1289 if (lp_clustering()) {
1290 struct ctdbd_connection
*conn
= messaging_ctdb_connection();
1292 register_with_ctdbd(conn
, CTDB_SRVID_RECONFIGURE
,
1293 smbd_parent_ctdb_reconfigured
, msg_ctx
);
1294 register_with_ctdbd(conn
, CTDB_SRVID_SAMBA_NOTIFY
,
1295 smbd_parent_ctdb_reconfigured
, msg_ctx
);
1300 messaging_register(msg_ctx
, NULL
, MSG_SMB_INJECT_FAULT
,
1304 if (lp_multicast_dns_register() && (dns_port
!= 0)) {
1305 #ifdef WITH_DNSSD_SUPPORT
1306 smbd_setup_mdns_registration(ev_ctx
,
1309 #ifdef WITH_AVAHI_SUPPORT
1312 avahi_conn
= avahi_start_register(ev_ctx
,
1315 if (avahi_conn
== NULL
) {
1316 DEBUG(10, ("avahi_start_register failed\n"));
1326 handle stdin becoming readable when we are in --foreground mode
1328 static void smbd_stdin_handler(struct tevent_context
*ev
,
1329 struct tevent_fd
*fde
,
1334 if (read(0, &c
, 1) != 1) {
1335 /* we have reached EOF on stdin, which means the
1336 parent has exited. Shutdown the server */
1337 exit_server_cleanly("EOF on stdin");
1341 struct smbd_parent_tevent_trace_state
{
1345 static void smbd_parent_tevent_trace_callback(enum tevent_trace_point point
,
1348 struct smbd_parent_tevent_trace_state
*state
=
1349 (struct smbd_parent_tevent_trace_state
*)private_data
;
1352 case TEVENT_TRACE_BEFORE_WAIT
:
1354 case TEVENT_TRACE_AFTER_WAIT
:
1356 case TEVENT_TRACE_BEFORE_LOOP_ONCE
:
1357 TALLOC_FREE(state
->frame
);
1358 state
->frame
= talloc_stackframe();
1360 case TEVENT_TRACE_AFTER_LOOP_ONCE
:
1361 TALLOC_FREE(state
->frame
);
1368 static void smbd_parent_loop(struct tevent_context
*ev_ctx
,
1369 struct smbd_parent_context
*parent
)
1371 struct smbd_parent_tevent_trace_state trace_state
= {
1376 tevent_set_trace_callback(ev_ctx
, smbd_parent_tevent_trace_callback
,
1379 /* now accept incoming connections - forking a new process
1380 for each incoming connection */
1381 DEBUG(2,("waiting for connections\n"));
1383 ret
= tevent_loop_wait(ev_ctx
);
1385 DEBUG(0, ("tevent_loop_wait failed: %d, %s, exiting\n",
1386 ret
, strerror(errno
)));
1389 TALLOC_FREE(trace_state
.frame
);
1391 /* NOTREACHED return True; */
1395 /****************************************************************************
1396 Initialise connect, service and file structs.
1397 ****************************************************************************/
1399 static bool init_structs(void )
1402 * Set the machine NETBIOS name if not already
1403 * set from the config file.
1409 if (!secrets_init())
1415 static void smbd_parent_sig_term_handler(struct tevent_context
*ev
,
1416 struct tevent_signal
*se
,
1422 exit_server_cleanly("termination signal");
1425 static void smbd_parent_sig_hup_handler(struct tevent_context
*ev
,
1426 struct tevent_signal
*se
,
1432 struct smbd_parent_context
*parent
=
1433 talloc_get_type_abort(private_data
,
1434 struct smbd_parent_context
);
1436 change_to_root_user();
1437 DEBUG(1,("parent: Reloading services after SIGHUP\n"));
1438 reload_services(NULL
, NULL
, false);
1440 printing_subsystem_update(parent
->ev_ctx
, parent
->msg_ctx
, true);
1443 struct smbd_claim_version_state
{
1444 TALLOC_CTX
*mem_ctx
;
1448 static void smbd_claim_version_parser(const struct g_lock_rec
*locks
,
1450 const uint8_t *data
,
1454 struct smbd_claim_version_state
*state
= private_data
;
1457 state
->version
= NULL
;
1460 if (data
[datalen
-1] != '\0') {
1461 DBG_WARNING("Invalid samba version\n");
1462 dump_data(DBGLVL_WARNING
, data
, datalen
);
1463 state
->version
= NULL
;
1466 state
->version
= talloc_strdup(state
->mem_ctx
, (const char *)data
);
1469 static NTSTATUS
smbd_claim_version(struct messaging_context
*msg
,
1470 const char *version
)
1472 const char *name
= "samba_version_string";
1473 struct smbd_claim_version_state state
;
1474 struct g_lock_ctx
*ctx
;
1477 ctx
= g_lock_ctx_init(msg
, msg
);
1479 DBG_WARNING("g_lock_ctx_init failed\n");
1480 return NT_STATUS_UNSUCCESSFUL
;
1483 status
= g_lock_lock(ctx
, string_term_tdb_data(name
), G_LOCK_READ
,
1484 (struct timeval
) { .tv_sec
= 60 });
1485 if (!NT_STATUS_IS_OK(status
)) {
1486 DBG_WARNING("g_lock_lock(G_LOCK_READ) failed: %s\n",
1492 state
= (struct smbd_claim_version_state
) { .mem_ctx
= ctx
};
1494 status
= g_lock_dump(ctx
, string_term_tdb_data(name
),
1495 smbd_claim_version_parser
, &state
);
1496 if (!NT_STATUS_IS_OK(status
) &&
1497 !NT_STATUS_EQUAL(status
, NT_STATUS_NOT_FOUND
)) {
1498 DBG_ERR("Could not read samba_version_string\n");
1499 g_lock_unlock(ctx
, string_term_tdb_data(name
));
1504 if ((state
.version
!= NULL
) && (strcmp(version
, state
.version
) == 0)) {
1506 * Leave the read lock for us around. Someone else already
1507 * set the version correctly
1510 return NT_STATUS_OK
;
1513 status
= g_lock_lock(ctx
, string_term_tdb_data(name
), G_LOCK_WRITE
,
1514 (struct timeval
) { .tv_sec
= 60 });
1515 if (!NT_STATUS_IS_OK(status
)) {
1516 DBG_WARNING("g_lock_lock(G_LOCK_WRITE) failed: %s\n",
1518 DBG_ERR("smbd %s already running, refusing to start "
1519 "version %s\n", state
.version
, version
);
1521 return NT_STATUS_SXS_VERSION_CONFLICT
;
1524 status
= g_lock_write_data(ctx
, string_term_tdb_data(name
),
1525 (const uint8_t *)version
,
1527 if (!NT_STATUS_IS_OK(status
)) {
1528 DBG_WARNING("g_lock_write_data failed: %s\n",
1534 status
= g_lock_lock(ctx
, string_term_tdb_data(name
), G_LOCK_READ
,
1535 (struct timeval
) { .tv_sec
= 60 });
1536 if (!NT_STATUS_IS_OK(status
)) {
1537 DBG_WARNING("g_lock_lock(G_LOCK_READ) failed: %s\n",
1544 * Leave "ctx" dangling so that g_lock.tdb keeps opened.
1546 return NT_STATUS_OK
;
1549 /****************************************************************************
1551 ****************************************************************************/
1553 /* Declare prototype for build_options() to avoid having to run it through
1554 mkproto.h. Mixing $(builddir) and $(srcdir) source files in the current
1555 prototype generation system is too complicated. */
1557 extern void build_options(bool screen
);
1559 int main(int argc
,const char *argv
[])
1561 /* shall I run as a daemon */
1562 bool is_daemon
= false;
1563 bool interactive
= false;
1565 bool no_process_group
= false;
1566 bool log_stdout
= false;
1568 char *profile_level
= NULL
;
1571 bool print_build_options
= False
;
1572 struct server_id main_server_id
= {0};
1577 OPT_NO_PROCESS_GROUP
,
1580 struct poptOption long_options
[] = {
1582 {"daemon", 'D', POPT_ARG_NONE
, NULL
, OPT_DAEMON
, "Become a daemon (default)" },
1583 {"interactive", 'i', POPT_ARG_NONE
, NULL
, OPT_INTERACTIVE
, "Run interactive (not a daemon) and log to stdout"},
1584 {"foreground", 'F', POPT_ARG_NONE
, NULL
, OPT_FORK
, "Run daemon in foreground (for daemontools, etc.)" },
1585 {"no-process-group", '\0', POPT_ARG_NONE
, NULL
, OPT_NO_PROCESS_GROUP
, "Don't create a new process group" },
1586 {"log-stdout", 'S', POPT_ARG_NONE
, NULL
, OPT_LOG_STDOUT
, "Log to stdout" },
1587 {"build-options", 'b', POPT_ARG_NONE
, NULL
, 'b', "Print build options" },
1588 {"port", 'p', POPT_ARG_STRING
, &ports
, 0, "Listen on the specified ports"},
1589 {"profiling-level", 'P', POPT_ARG_STRING
, &profile_level
, 0, "Set profiling level","PROFILE_LEVEL"},
1593 struct smbd_parent_context
*parent
= NULL
;
1596 struct tevent_context
*ev_ctx
;
1597 struct messaging_context
*msg_ctx
;
1598 struct server_id server_id
;
1599 struct tevent_signal
*se
;
1600 int profiling_level
;
1601 char *np_dir
= NULL
;
1602 static const struct smbd_shim smbd_shim_fns
=
1604 .cancel_pending_lock_requests_by_fid
= smbd_cancel_pending_lock_requests_by_fid
,
1605 .send_stat_cache_delete_message
= smbd_send_stat_cache_delete_message
,
1606 .change_to_root_user
= smbd_change_to_root_user
,
1607 .become_authenticated_pipe_user
= smbd_become_authenticated_pipe_user
,
1608 .unbecome_authenticated_pipe_user
= smbd_unbecome_authenticated_pipe_user
,
1610 .contend_level2_oplocks_begin
= smbd_contend_level2_oplocks_begin
,
1611 .contend_level2_oplocks_end
= smbd_contend_level2_oplocks_end
,
1613 .become_root
= smbd_become_root
,
1614 .unbecome_root
= smbd_unbecome_root
,
1616 .exit_server
= smbd_exit_server
,
1617 .exit_server_cleanly
= smbd_exit_server_cleanly
,
1621 * Do this before any other talloc operation
1623 talloc_enable_null_tracking();
1624 frame
= talloc_stackframe();
1626 setup_logging(argv
[0], DEBUG_DEFAULT_STDOUT
);
1630 set_smbd_shim(&smbd_shim_fns
);
1632 smbd_init_globals();
1636 #ifdef HAVE_SET_AUTH_PARAMETERS
1637 set_auth_parameters(argc
,argv
);
1640 pc
= poptGetContext("smbd", argc
, argv
, long_options
, 0);
1641 while((opt
= poptGetNextOpt(pc
)) != -1) {
1646 case OPT_INTERACTIVE
:
1652 case OPT_NO_PROCESS_GROUP
:
1653 no_process_group
= true;
1655 case OPT_LOG_STDOUT
:
1659 print_build_options
= True
;
1662 d_fprintf(stderr
, "\nInvalid option %s: %s\n\n",
1663 poptBadOption(pc
, 0), poptStrerror(opt
));
1664 poptPrintUsage(pc
, stderr
, 0);
1668 poptFreeContext(pc
);
1676 setup_logging(argv
[0], DEBUG_STDOUT
);
1678 setup_logging(argv
[0], DEBUG_FILE
);
1681 if (print_build_options
) {
1682 build_options(True
); /* Display output to screen as well as debug */
1687 /* needed for SecureWare on SCO */
1691 set_remote_machine_name("smbd", False
);
1693 if (interactive
&& (DEBUGLEVEL
>= 9)) {
1694 talloc_enable_leak_report();
1697 if (log_stdout
&& Fork
) {
1698 DEBUG(0,("ERROR: Can't log to stdout (-S) unless daemon is in foreground (-F) or interactive (-i)\n"));
1703 * We want to die early if we can't open /dev/urandom
1705 generate_random_buffer(NULL
, 0);
1707 /* get initial effective uid and gid */
1710 /* make absolutely sure we run as root - to handle cases where people
1711 are crazy enough to have it setuid */
1712 gain_root_privilege();
1713 gain_root_group_privilege();
1716 dump_core_setup("smbd", lp_logfile(talloc_tos()));
1718 /* we are never interested in SIGPIPE */
1719 BlockSignals(True
,SIGPIPE
);
1722 /* we are never interested in SIGFPE */
1723 BlockSignals(True
,SIGFPE
);
1726 #if defined(SIGUSR2)
1727 /* We are no longer interested in USR2 */
1728 BlockSignals(True
,SIGUSR2
);
1731 /* POSIX demands that signals are inherited. If the invoking process has
1732 * these signals masked, we will have problems, as we won't recieve them. */
1733 BlockSignals(False
, SIGHUP
);
1734 BlockSignals(False
, SIGUSR1
);
1735 BlockSignals(False
, SIGTERM
);
1737 /* Ensure we leave no zombies until we
1738 * correctly set up child handling below. */
1742 /* we want total control over the permissions on created files,
1743 so set our umask to 0 */
1748 DEBUG(0,("smbd version %s started.\n", samba_version_string()));
1749 DEBUGADD(0,("%s\n", COPYRIGHT_STARTUP_MESSAGE
));
1751 DEBUG(2,("uid=%d gid=%d euid=%d egid=%d\n",
1752 (int)getuid(),(int)getgid(),(int)geteuid(),(int)getegid()));
1754 /* Output the build options to the debug log */
1755 build_options(False
);
1757 if (sizeof(uint16_t) < 2 || sizeof(uint32_t) < 4) {
1758 DEBUG(0,("ERROR: Samba is not configured correctly for the word size on your machine\n"));
1762 if (!lp_load_initial_only(get_dyn_CONFIGFILE())) {
1763 DEBUG(0, ("error opening config file '%s'\n", get_dyn_CONFIGFILE()));
1767 if (!cluster_probe_ok()) {
1771 /* Init the security context and global current_user */
1775 * Initialize the event context. The event context needs to be
1776 * initialized before the messaging context, cause the messaging
1777 * context holds an event context.
1779 ev_ctx
= server_event_context();
1780 if (ev_ctx
== NULL
) {
1785 * Init the messaging context
1786 * FIXME: This should only call messaging_init()
1788 msg_ctx
= server_messaging_context();
1789 if (msg_ctx
== NULL
) {
1794 * Reloading of the printers will not work here as we don't have a
1795 * server info and rpc services set up. It will be called later.
1797 if (!reload_services(NULL
, NULL
, false)) {
1801 if (lp_server_role() == ROLE_ACTIVE_DIRECTORY_DC
1802 && !lp_parm_bool(-1, "server role check", "inhibit", false)) {
1803 DEBUG(0, ("server role = 'active directory domain controller' not compatible with running smbd standalone. \n"));
1804 DEBUGADD(0, ("You should start 'samba' instead, and it will control starting smbd if required\n"));
1808 /* ...NOTE... Log files are working from this point! */
1810 DEBUG(3,("loaded services\n"));
1814 if (!profile_setup(msg_ctx
, False
)) {
1815 DEBUG(0,("ERROR: failed to setup profiling\n"));
1819 if (profile_level
!= NULL
) {
1820 profiling_level
= atoi(profile_level
);
1822 profiling_level
= lp_smbd_profiling_level();
1824 main_server_id
= messaging_server_id(msg_ctx
);
1825 set_profile_level(profiling_level
, &main_server_id
);
1827 if (!is_daemon
&& !is_a_socket(0)) {
1829 DEBUG(3, ("Standard input is not a socket, "
1830 "assuming -D option\n"));
1834 * Setting is_daemon here prevents us from eventually calling
1835 * the open_sockets_inetd()
1841 if (is_daemon
&& !interactive
) {
1842 DEBUG(3, ("Becoming a daemon.\n"));
1843 become_daemon(Fork
, no_process_group
, log_stdout
);
1848 * If we're interactive we want to set our own process group for
1849 * signal management.
1851 if (interactive
&& !no_process_group
)
1852 setpgid( (pid_t
)0, (pid_t
)0);
1855 if (!directory_exist(lp_lock_directory()))
1856 mkdir(lp_lock_directory(), 0755);
1858 if (!directory_exist(lp_pid_directory()))
1859 mkdir(lp_pid_directory(), 0755);
1862 pidfile_create(lp_pid_directory(), "smbd");
1864 status
= reinit_after_fork(msg_ctx
, ev_ctx
, false, NULL
);
1865 if (!NT_STATUS_IS_OK(status
)) {
1866 exit_daemon("reinit_after_fork() failed", map_errno_from_nt_status(status
));
1871 * Do not initialize the parent-child-pipe before becoming a
1872 * daemon: this is used to detect a died parent in the child
1875 status
= init_before_fork();
1876 if (!NT_STATUS_IS_OK(status
)) {
1877 exit_daemon(nt_errstr(status
), map_errno_from_nt_status(status
));
1881 parent
= talloc_zero(ev_ctx
, struct smbd_parent_context
);
1883 exit_server("talloc(struct smbd_parent_context) failed");
1885 parent
->interactive
= interactive
;
1886 parent
->ev_ctx
= ev_ctx
;
1887 parent
->msg_ctx
= msg_ctx
;
1890 se
= tevent_add_signal(parent
->ev_ctx
,
1893 smbd_parent_sig_term_handler
,
1896 exit_server("failed to setup SIGTERM handler");
1898 se
= tevent_add_signal(parent
->ev_ctx
,
1901 smbd_parent_sig_hup_handler
,
1904 exit_server("failed to setup SIGHUP handler");
1907 /* Setup all the TDB's - including CLEAR_IF_FIRST tdb's. */
1909 if (smbd_memcache() == NULL
) {
1910 exit_daemon("no memcache available", EACCES
);
1913 memcache_set_global(smbd_memcache());
1915 /* Initialise the password backed before the global_sam_sid
1916 to ensure that we fetch from ldap before we make a domain sid up */
1918 if(!initialize_password_db(false, ev_ctx
))
1921 if (!secrets_init()) {
1922 exit_daemon("smbd can not open secrets.tdb", EACCES
);
1925 if (lp_server_role() == ROLE_DOMAIN_BDC
|| lp_server_role() == ROLE_DOMAIN_PDC
) {
1926 struct loadparm_context
*lp_ctx
= loadparm_init_s3(NULL
, loadparm_s3_helpers());
1927 if (!open_schannel_session_store(NULL
, lp_ctx
)) {
1928 exit_daemon("ERROR: Samba cannot open schannel store for secured NETLOGON operations.", EACCES
);
1930 TALLOC_FREE(lp_ctx
);
1933 if(!get_global_sam_sid()) {
1934 exit_daemon("Samba cannot create a SAM SID", EACCES
);
1937 server_id
= messaging_server_id(msg_ctx
);
1938 status
= smbXsrv_version_global_init(&server_id
);
1939 if (!NT_STATUS_IS_OK(status
)) {
1940 exit_daemon("Samba cannot init server context", EACCES
);
1943 status
= smbXsrv_session_global_init(msg_ctx
);
1944 if (!NT_STATUS_IS_OK(status
)) {
1945 exit_daemon("Samba cannot init session context", EACCES
);
1948 status
= smbXsrv_tcon_global_init();
1949 if (!NT_STATUS_IS_OK(status
)) {
1950 exit_daemon("Samba cannot init tcon context", EACCES
);
1953 if (!locking_init())
1954 exit_daemon("Samba cannot init locking", EACCES
);
1956 if (!leases_db_init(false)) {
1957 exit_daemon("Samba cannot init leases", EACCES
);
1960 if (!smbd_notifyd_init(msg_ctx
, interactive
, &parent
->notifyd
)) {
1961 exit_daemon("Samba cannot init notification", EACCES
);
1964 if (!cleanupd_init(msg_ctx
, interactive
, &parent
->cleanupd
)) {
1965 exit_daemon("Samba cannot init the cleanupd", EACCES
);
1968 if (!messaging_parent_dgm_cleanup_init(msg_ctx
)) {
1972 if (!smbd_scavenger_init(NULL
, msg_ctx
, ev_ctx
)) {
1973 exit_daemon("Samba cannot init scavenging", EACCES
);
1976 if (!W_ERROR_IS_OK(registry_init_full()))
1977 exit_daemon("Samba cannot init registry", EACCES
);
1979 /* Open the share_info.tdb here, so we don't have to open
1980 after the fork on every single connection. This is a small
1981 performance improvment and reduces the total number of system
1983 if (!share_info_db_init()) {
1984 exit_daemon("ERROR: failed to load share info db.", EACCES
);
1987 status
= init_system_session_info(NULL
);
1988 if (!NT_STATUS_IS_OK(status
)) {
1989 DEBUG(1, ("ERROR: failed to setup system user info: %s.\n",
1990 nt_errstr(status
)));
1994 if (!init_guest_session_info(NULL
)) {
1995 DEBUG(0,("ERROR: failed to setup guest info.\n"));
1999 if (!file_init_global()) {
2000 DEBUG(0, ("ERROR: file_init_global() failed\n"));
2003 status
= smbXsrv_open_global_init();
2004 if (!NT_STATUS_IS_OK(status
)) {
2005 exit_daemon("Samba cannot init global open", map_errno_from_nt_status(status
));
2008 if (lp_clustering() && !lp_allow_unsafe_cluster_upgrade()) {
2009 status
= smbd_claim_version(msg_ctx
, samba_version_string());
2010 if (!NT_STATUS_IS_OK(status
)) {
2011 DBG_WARNING("Could not claim version: %s\n",
2017 /* This MUST be done before start_epmd() because otherwise
2018 * start_epmd() forks and races against dcesrv_ep_setup() to
2019 * call directory_create_or_exist() */
2020 if (!directory_create_or_exist(lp_ncalrpc_dir(), 0755)) {
2021 DEBUG(0, ("Failed to create pipe directory %s - %s\n",
2022 lp_ncalrpc_dir(), strerror(errno
)));
2026 np_dir
= talloc_asprintf(talloc_tos(), "%s/np", lp_ncalrpc_dir());
2028 DEBUG(0, ("%s: Out of memory\n", __location__
));
2032 if (!directory_create_or_exist_strict(np_dir
, geteuid(), 0700)) {
2033 DEBUG(0, ("Failed to create pipe directory %s - %s\n",
2034 np_dir
, strerror(errno
)));
2038 if (is_daemon
&& !interactive
) {
2039 if (rpc_epmapper_daemon() == RPC_DAEMON_FORK
) {
2040 start_epmd(ev_ctx
, msg_ctx
);
2044 if (!dcesrv_ep_setup(ev_ctx
, msg_ctx
)) {
2045 exit_daemon("Samba cannot setup ep pipe", EACCES
);
2048 if (is_daemon
&& !interactive
) {
2049 daemon_ready("smbd");
2052 /* only start other daemons if we are running as a daemon
2053 * -- bad things will happen if smbd is launched via inetd
2054 * and we fork a copy of ourselves here */
2055 if (is_daemon
&& !interactive
) {
2057 if (rpc_lsasd_daemon() == RPC_DAEMON_FORK
) {
2058 start_lsasd(ev_ctx
, msg_ctx
);
2061 if (rpc_fss_daemon() == RPC_DAEMON_FORK
) {
2062 start_fssd(ev_ctx
, msg_ctx
);
2065 if (!lp__disable_spoolss() &&
2066 (rpc_spoolss_daemon() != RPC_DAEMON_DISABLED
)) {
2067 bool bgq
= lp_parm_bool(-1, "smbd", "backgroundqueue", true);
2069 if (!printing_subsystem_init(ev_ctx
, msg_ctx
, true, bgq
)) {
2070 exit_daemon("Samba failed to init printing subsystem", EACCES
);
2074 #ifdef WITH_SPOTLIGHT
2075 if ((rpc_mdssvc_mode() == RPC_SERVICE_MODE_EXTERNAL
) &&
2076 (rpc_mdssd_daemon() == RPC_DAEMON_FORK
)) {
2077 start_mdssd(ev_ctx
, msg_ctx
);
2080 } else if (!lp__disable_spoolss() &&
2081 (rpc_spoolss_daemon() != RPC_DAEMON_DISABLED
)) {
2082 if (!printing_subsystem_init(ev_ctx
, msg_ctx
, false, false)) {
2093 /* Started from inetd. fd 0 is the socket. */
2094 /* We will abort gracefully when the client or remote system
2098 /* close stdin, stdout (if not logging to it), but not stderr */
2099 close_low_fds(true, !debug_get_output_is_stdout(), false);
2106 smbd_setup_sig_chld_handler(parent
);
2108 smbd_process(ev_ctx
, msg_ctx
, sock
, true);
2110 exit_server_cleanly(NULL
);
2114 if (!open_sockets_smbd(parent
, ev_ctx
, msg_ctx
, ports
))
2115 exit_server("open_sockets_smbd() failed");
2117 /* do a printer update now that all messaging has been set up,
2118 * before we allow clients to start connecting */
2119 if (!lp__disable_spoolss() &&
2120 (rpc_spoolss_daemon() != RPC_DAEMON_DISABLED
)) {
2121 printing_subsystem_update(ev_ctx
, msg_ctx
, false);
2125 /* make sure we always have a valid stackframe */
2126 frame
= talloc_stackframe();
2129 /* if we are running in the foreground then look for
2130 EOF on stdin, and exit if it happens. This allows
2131 us to die if the parent process dies
2132 Only do this on a pipe or socket, no other device.
2135 if (fstat(0, &st
) != 0) {
2138 if (S_ISFIFO(st
.st_mode
) || S_ISSOCK(st
.st_mode
)) {
2139 tevent_add_fd(ev_ctx
,
2148 smbd_parent_loop(ev_ctx
, parent
);
2150 exit_server_cleanly(NULL
);