2 Unix SMB/CIFS implementation.
4 Winbind daemon for ntdom nss module
6 Copyright (C) by Tim Potter 2000-2002
7 Copyright (C) Andrew Tridgell 2002
8 Copyright (C) Jelmer Vernooij 2003
9 Copyright (C) Volker Lendecke 2004
11 This program is free software; you can redistribute it and/or modify
12 it under the terms of the GNU General Public License as published by
13 the Free Software Foundation; either version 2 of the License, or
14 (at your option) any later version.
16 This program is distributed in the hope that it will be useful,
17 but WITHOUT ANY WARRANTY; without even the implied warranty of
18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 GNU General Public License for more details.
21 You should have received a copy of the GNU General Public License
22 along with this program; if not, write to the Free Software
23 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
29 BOOL opt_nocache
= False
;
30 static BOOL interactive
= False
;
32 extern BOOL override_logfile
;
34 /* Reload configuration */
36 static BOOL
reload_services_file(void)
43 pstrcpy(fname
,lp_configfile());
44 if (file_exist(fname
,NULL
) && !strcsequal(fname
,dyn_CONFIGFILE
)) {
45 pstrcpy(dyn_CONFIGFILE
,fname
);
50 ret
= lp_load(dyn_CONFIGFILE
,False
,False
,True
);
61 /**************************************************************************** **
62 Prepare to dump a core file - carefully!
63 **************************************************************************** */
65 static BOOL
dump_core(void)
69 pstrcpy( dname
, lp_logfile() );
70 if ((p
=strrchr(dname
,'/')))
72 pstrcat( dname
, "/corefiles" );
74 sys_chown( dname
, getuid(), getgid() );
84 getrlimit( RLIMIT_CORE
, &rlp
);
85 rlp
.rlim_cur
= MAX( 4*1024*1024, rlp
.rlim_cur
);
86 setrlimit( RLIMIT_CORE
, &rlp
);
87 getrlimit( RLIMIT_CORE
, &rlp
);
88 DEBUG( 3, ( "Core limits now %d %d\n", (int)rlp
.rlim_cur
, (int)rlp
.rlim_max
) );
93 DEBUG(0,("Dumping core in %s\n",dname
));
99 /**************************************************************************** **
101 **************************************************************************** */
103 static void fault_quit(void)
110 static void winbindd_status(void)
112 struct winbindd_cli_state
*tmp
;
114 DEBUG(0, ("winbindd status:\n"));
116 /* Print client state information */
118 DEBUG(0, ("\t%d clients currently active\n", winbindd_num_clients()));
120 if (DEBUGLEVEL
>= 2 && winbindd_num_clients()) {
121 DEBUG(2, ("\tclient list:\n"));
122 for(tmp
= winbindd_client_list(); tmp
; tmp
= tmp
->next
) {
123 DEBUG(2, ("\t\tpid %lu, sock %d\n",
124 (unsigned long)tmp
->pid
, tmp
->sock
));
129 /* Print winbindd status to log file */
131 static void print_winbindd_status(void)
136 /* Flush client cache */
138 static void flush_caches(void)
140 /* We need to invalidate cached user list entries on a SIGHUP
141 otherwise cached access denied errors due to restrict anonymous
142 hang around until the sequence number changes. */
144 wcache_invalidate_cache();
147 /* Handle the signal by unlinking socket and exiting */
149 static void terminate(void)
155 /* Remove socket file */
156 pstr_sprintf(path
, "%s/%s",
157 WINBINDD_SOCKET_DIR
, WINBINDD_SOCKET_NAME
);
162 TALLOC_CTX
*mem_ctx
= talloc_init("end_description");
163 char *description
= talloc_describe_all(mem_ctx
);
165 DEBUG(3, ("tallocs left:\n%s\n", description
));
166 talloc_destroy(mem_ctx
);
173 static BOOL do_sigterm
;
175 static void termination_handler(int signum
)
178 sys_select_signal(signum
);
181 static BOOL do_sigusr2
;
183 static void sigusr2_handler(int signum
)
186 sys_select_signal(SIGUSR2
);
189 static BOOL do_sighup
;
191 static void sighup_handler(int signum
)
194 sys_select_signal(SIGHUP
);
197 static BOOL do_sigchld
;
199 static void sigchld_handler(int signum
)
202 sys_select_signal(SIGCHLD
);
205 /* React on 'smbcontrol winbindd reload-config' in the same way as on SIGHUP*/
206 static void msg_reload_services(int msg_type
, struct process_id src
, void *buf
, size_t len
)
208 /* Flush various caches */
210 reload_services_file();
213 /* React on 'smbcontrol winbindd shutdown' in the same way as on SIGTERM*/
214 static void msg_shutdown(int msg_type
, struct process_id src
, void *buf
, size_t len
)
219 static struct winbindd_dispatch_table
{
220 enum winbindd_cmd cmd
;
221 void (*fn
)(struct winbindd_cli_state
*state
);
222 const char *winbindd_cmd_name
;
223 } dispatch_table
[] = {
227 { WINBINDD_GETPWNAM
, winbindd_getpwnam
, "GETPWNAM" },
228 { WINBINDD_GETPWUID
, winbindd_getpwuid
, "GETPWUID" },
230 { WINBINDD_SETPWENT
, winbindd_setpwent
, "SETPWENT" },
231 { WINBINDD_ENDPWENT
, winbindd_endpwent
, "ENDPWENT" },
232 { WINBINDD_GETPWENT
, winbindd_getpwent
, "GETPWENT" },
234 { WINBINDD_GETGROUPS
, winbindd_getgroups
, "GETGROUPS" },
235 { WINBINDD_GETUSERSIDS
, winbindd_getusersids
, "GETUSERSIDS" },
236 { WINBINDD_GETUSERDOMGROUPS
, winbindd_getuserdomgroups
,
237 "GETUSERDOMGROUPS" },
239 /* Group functions */
241 { WINBINDD_GETGRNAM
, winbindd_getgrnam
, "GETGRNAM" },
242 { WINBINDD_GETGRGID
, winbindd_getgrgid
, "GETGRGID" },
243 { WINBINDD_SETGRENT
, winbindd_setgrent
, "SETGRENT" },
244 { WINBINDD_ENDGRENT
, winbindd_endgrent
, "ENDGRENT" },
245 { WINBINDD_GETGRENT
, winbindd_getgrent
, "GETGRENT" },
246 { WINBINDD_GETGRLST
, winbindd_getgrent
, "GETGRLST" },
248 /* PAM auth functions */
250 { WINBINDD_PAM_AUTH
, winbindd_pam_auth
, "PAM_AUTH" },
251 { WINBINDD_PAM_AUTH_CRAP
, winbindd_pam_auth_crap
, "AUTH_CRAP" },
252 { WINBINDD_PAM_CHAUTHTOK
, winbindd_pam_chauthtok
, "CHAUTHTOK" },
254 /* Enumeration functions */
256 { WINBINDD_LIST_USERS
, winbindd_list_users
, "LIST_USERS" },
257 { WINBINDD_LIST_GROUPS
, winbindd_list_groups
, "LIST_GROUPS" },
258 { WINBINDD_LIST_TRUSTDOM
, winbindd_list_trusted_domains
,
260 { WINBINDD_SHOW_SEQUENCE
, winbindd_show_sequence
, "SHOW_SEQUENCE" },
262 /* SID related functions */
264 { WINBINDD_LOOKUPSID
, winbindd_lookupsid
, "LOOKUPSID" },
265 { WINBINDD_LOOKUPNAME
, winbindd_lookupname
, "LOOKUPNAME" },
267 /* Lookup related functions */
269 { WINBINDD_SID_TO_UID
, winbindd_sid_to_uid
, "SID_TO_UID" },
270 { WINBINDD_SID_TO_GID
, winbindd_sid_to_gid
, "SID_TO_GID" },
271 { WINBINDD_UID_TO_SID
, winbindd_uid_to_sid
, "UID_TO_SID" },
272 { WINBINDD_GID_TO_SID
, winbindd_gid_to_sid
, "GID_TO_SID" },
273 { WINBINDD_ALLOCATE_RID
, winbindd_allocate_rid
, "ALLOCATE_RID" },
274 { WINBINDD_ALLOCATE_RID_AND_GID
, winbindd_allocate_rid_and_gid
,
275 "ALLOCATE_RID_AND_GID" },
279 { WINBINDD_CHECK_MACHACC
, winbindd_check_machine_acct
, "CHECK_MACHACC" },
280 { WINBINDD_PING
, winbindd_ping
, "PING" },
281 { WINBINDD_INFO
, winbindd_info
, "INFO" },
282 { WINBINDD_INTERFACE_VERSION
, winbindd_interface_version
,
283 "INTERFACE_VERSION" },
284 { WINBINDD_DOMAIN_NAME
, winbindd_domain_name
, "DOMAIN_NAME" },
285 { WINBINDD_DOMAIN_INFO
, winbindd_domain_info
, "DOMAIN_INFO" },
286 { WINBINDD_NETBIOS_NAME
, winbindd_netbios_name
, "NETBIOS_NAME" },
287 { WINBINDD_PRIV_PIPE_DIR
, winbindd_priv_pipe_dir
,
288 "WINBINDD_PRIV_PIPE_DIR" },
289 { WINBINDD_GETDCNAME
, winbindd_getdcname
, "GETDCNAME" },
293 { WINBINDD_WINS_BYNAME
, winbindd_wins_byname
, "WINS_BYNAME" },
294 { WINBINDD_WINS_BYIP
, winbindd_wins_byip
, "WINS_BYIP" },
298 { WINBINDD_NUM_CMDS
, NULL
, "NONE" }
301 static void process_request(struct winbindd_cli_state
*state
)
303 struct winbindd_dispatch_table
*table
= dispatch_table
;
305 /* Free response data - we may be interrupted and receive another
306 command before being able to send this data off. */
308 SAFE_FREE(state
->response
.extra_data
);
310 ZERO_STRUCT(state
->response
);
312 state
->response
.result
= WINBINDD_PENDING
;
313 state
->response
.length
= sizeof(struct winbindd_response
);
315 state
->mem_ctx
= talloc_init("winbind request");
316 if (state
->mem_ctx
== NULL
)
319 /* Process command */
321 for (table
= dispatch_table
; table
->fn
; table
++) {
322 if (state
->request
.cmd
== table
->cmd
) {
323 DEBUG(10,("process_request: request fn %s\n",
324 table
->winbindd_cmd_name
));
331 DEBUG(10,("process_request: unknown request fn number %d\n",
332 (int)state
->request
.cmd
));
333 request_error(state
);
338 * A list of file descriptors being monitored by select in the main processing
339 * loop. fd_event->handler is called whenever the socket is readable/writable.
342 static struct fd_event
*fd_events
= NULL
;
344 void add_fd_event(struct fd_event
*ev
)
346 struct fd_event
*match
;
348 /* only add unique fd_event structs */
350 for (match
=fd_events
; match
; match
=match
->next
) {
352 SMB_ASSERT( match
!= ev
);
359 DLIST_ADD(fd_events
, ev
);
362 void remove_fd_event(struct fd_event
*ev
)
364 DLIST_REMOVE(fd_events
, ev
);
368 * Handler for fd_events to complete a read/write request, set up by
369 * setup_async_read/setup_async_write.
372 static void rw_callback(struct fd_event
*event
, int flags
)
377 todo
= event
->length
- event
->done
;
379 if (event
->flags
& EVENT_FD_WRITE
) {
380 SMB_ASSERT(flags
== EVENT_FD_WRITE
);
381 done
= sys_write(event
->fd
,
382 &((char *)event
->data
)[event
->done
],
387 event
->finished(event
->private_data
, False
);
392 if (event
->flags
& EVENT_FD_READ
) {
393 SMB_ASSERT(flags
== EVENT_FD_READ
);
394 done
= sys_read(event
->fd
, &((char *)event
->data
)[event
->done
],
399 event
->finished(event
->private_data
, False
);
406 if (event
->done
== event
->length
) {
408 event
->finished(event
->private_data
, True
);
413 * Request an async read/write on a fd_event structure. (*finished) is called
414 * when the request is completed or an error had occurred.
417 void setup_async_read(struct fd_event
*event
, void *data
, size_t length
,
418 void (*finished
)(void *private_data
, BOOL success
),
421 SMB_ASSERT(event
->flags
== 0);
423 event
->length
= length
;
425 event
->handler
= rw_callback
;
426 event
->finished
= finished
;
427 event
->private_data
= private_data
;
428 event
->flags
= EVENT_FD_READ
;
431 void setup_async_write(struct fd_event
*event
, void *data
, size_t length
,
432 void (*finished
)(void *private_data
, BOOL success
),
435 SMB_ASSERT(event
->flags
== 0);
437 event
->length
= length
;
439 event
->handler
= rw_callback
;
440 event
->finished
= finished
;
441 event
->private_data
= private_data
;
442 event
->flags
= EVENT_FD_WRITE
;
446 * This is the main event loop of winbind requests. It goes through a
447 * state-machine of 3 read/write requests, 4 if you have extra data to send.
449 * An idle winbind client has a read request of 4 bytes outstanding,
450 * finalizing function is request_len_recv, checking the length. request_recv
451 * then processes the packet. The processing function then at some point has
452 * to call request_finished which schedules sending the response.
455 static void request_len_recv(void *private_data
, BOOL success
);
456 static void request_recv(void *private_data
, BOOL success
);
457 static void request_main_recv(void *private_data
, BOOL success
);
458 static void request_finished(struct winbindd_cli_state
*state
);
459 void request_finished_cont(void *private_data
, BOOL success
);
460 static void response_main_sent(void *private_data
, BOOL success
);
461 static void response_extra_sent(void *private_data
, BOOL success
);
463 static void response_extra_sent(void *private_data
, BOOL success
)
465 struct winbindd_cli_state
*state
=
466 talloc_get_type_abort(private_data
, struct winbindd_cli_state
);
468 if (state
->mem_ctx
!= NULL
) {
469 talloc_destroy(state
->mem_ctx
);
470 state
->mem_ctx
= NULL
;
474 state
->finished
= True
;
478 SAFE_FREE(state
->request
.extra_data
);
479 SAFE_FREE(state
->response
.extra_data
);
481 setup_async_read(&state
->fd_event
, &state
->request
, sizeof(uint32
),
482 request_len_recv
, state
);
485 static void response_main_sent(void *private_data
, BOOL success
)
487 struct winbindd_cli_state
*state
=
488 talloc_get_type_abort(private_data
, struct winbindd_cli_state
);
491 state
->finished
= True
;
495 if (state
->response
.length
== sizeof(state
->response
)) {
496 if (state
->mem_ctx
!= NULL
) {
497 talloc_destroy(state
->mem_ctx
);
498 state
->mem_ctx
= NULL
;
501 setup_async_read(&state
->fd_event
, &state
->request
,
502 sizeof(uint32
), request_len_recv
, state
);
506 setup_async_write(&state
->fd_event
, state
->response
.extra_data
,
507 state
->response
.length
- sizeof(state
->response
),
508 response_extra_sent
, state
);
511 static void request_finished(struct winbindd_cli_state
*state
)
513 setup_async_write(&state
->fd_event
, &state
->response
,
514 sizeof(state
->response
), response_main_sent
, state
);
517 void request_error(struct winbindd_cli_state
*state
)
519 SMB_ASSERT(state
->response
.result
== WINBINDD_PENDING
);
520 state
->response
.result
= WINBINDD_ERROR
;
521 request_finished(state
);
524 void request_ok(struct winbindd_cli_state
*state
)
526 SMB_ASSERT(state
->response
.result
== WINBINDD_PENDING
);
527 state
->response
.result
= WINBINDD_OK
;
528 request_finished(state
);
531 void request_finished_cont(void *private_data
, BOOL success
)
533 struct winbindd_cli_state
*state
=
534 talloc_get_type_abort(private_data
, struct winbindd_cli_state
);
539 request_error(state
);
542 static void request_len_recv(void *private_data
, BOOL success
)
544 struct winbindd_cli_state
*state
=
545 talloc_get_type_abort(private_data
, struct winbindd_cli_state
);
548 state
->finished
= True
;
552 if (*(uint32
*)(&state
->request
) != sizeof(state
->request
)) {
553 DEBUG(0,("request_len_recv: Invalid request size received: %d\n",
554 *(uint32
*)(&state
->request
)));
555 state
->finished
= True
;
559 setup_async_read(&state
->fd_event
, (uint32
*)(&state
->request
)+1,
560 sizeof(state
->request
) - sizeof(uint32
),
561 request_main_recv
, state
);
564 static void request_main_recv(void *private_data
, BOOL success
)
566 struct winbindd_cli_state
*state
=
567 talloc_get_type_abort(private_data
, struct winbindd_cli_state
);
570 state
->finished
= True
;
574 if (state
->request
.extra_len
== 0) {
575 state
->request
.extra_data
= NULL
;
576 request_recv(state
, True
);
580 if ((!state
->privileged
) &&
581 (state
->request
.extra_len
> WINBINDD_MAX_EXTRA_DATA
)) {
582 DEBUG(3, ("Got request with %d bytes extra data on "
583 "unprivileged socket\n", (int)state
->request
.extra_len
));
584 state
->request
.extra_data
= NULL
;
585 state
->finished
= True
;
589 state
->request
.extra_data
=
590 SMB_MALLOC_ARRAY(char, state
->request
.extra_len
+ 1);
592 if (state
->request
.extra_data
== NULL
) {
593 DEBUG(0, ("malloc failed\n"));
594 state
->finished
= True
;
598 /* Ensure null termination */
599 state
->request
.extra_data
[state
->request
.extra_len
] = '\0';
601 setup_async_read(&state
->fd_event
, state
->request
.extra_data
,
602 state
->request
.extra_len
, request_recv
, state
);
605 static void request_recv(void *private_data
, BOOL success
)
607 struct winbindd_cli_state
*state
=
608 talloc_get_type_abort(private_data
, struct winbindd_cli_state
);
611 state
->finished
= True
;
615 process_request(state
);
618 /* Process a new connection by adding it to the client connection list */
620 static void new_connection(int listen_sock
, BOOL privileged
)
622 struct sockaddr_un sunaddr
;
623 struct winbindd_cli_state
*state
;
627 /* Accept connection */
629 len
= sizeof(sunaddr
);
632 sock
= accept(listen_sock
, (struct sockaddr
*)&sunaddr
, &len
);
633 } while (sock
== -1 && errno
== EINTR
);
638 DEBUG(6,("accepted socket %d\n", sock
));
640 /* Create new connection structure */
642 if ((state
= TALLOC_ZERO_P(NULL
, struct winbindd_cli_state
)) == NULL
)
647 state
->last_access
= time(NULL
);
649 state
->privileged
= privileged
;
651 state
->fd_event
.fd
= state
->sock
;
652 state
->fd_event
.flags
= 0;
653 add_fd_event(&state
->fd_event
);
655 setup_async_read(&state
->fd_event
, &state
->request
, sizeof(uint32
),
656 request_len_recv
, state
);
658 /* Add to connection list */
660 winbindd_add_client(state
);
663 /* Remove a client connection from client connection list */
665 static void remove_client(struct winbindd_cli_state
*state
)
667 /* It's a dead client - hold a funeral */
675 /* Free any getent state */
677 free_getent_state(state
->getpwent_state
);
678 free_getent_state(state
->getgrent_state
);
680 /* We may have some extra data that was not freed if the
681 client was killed unexpectedly */
683 SAFE_FREE(state
->response
.extra_data
);
685 if (state
->mem_ctx
!= NULL
) {
686 talloc_destroy(state
->mem_ctx
);
687 state
->mem_ctx
= NULL
;
690 remove_fd_event(&state
->fd_event
);
692 /* Remove from list and free */
694 winbindd_remove_client(state
);
700 /* Shutdown client connection which has been idle for the longest time */
702 static BOOL
remove_idle_client(void)
704 struct winbindd_cli_state
*state
, *remove_state
= NULL
;
705 time_t last_access
= 0;
708 for (state
= winbindd_client_list(); state
; state
= state
->next
) {
709 if (state
->response
.result
!= WINBINDD_PENDING
&&
710 !state
->getpwent_state
&& !state
->getgrent_state
) {
712 if (!last_access
|| state
->last_access
< last_access
) {
713 last_access
= state
->last_access
;
714 remove_state
= state
;
720 DEBUG(5,("Found %d idle client connections, shutting down sock %d, pid %u\n",
721 nidle
, remove_state
->sock
, (unsigned int)remove_state
->pid
));
722 remove_client(remove_state
);
729 /* Process incoming clients on listen_sock. We use a tricky non-blocking,
730 non-forking, non-threaded model which allows us to handle many
731 simultaneous connections while remaining impervious to many denial of
734 static void process_loop(void)
736 struct winbindd_cli_state
*state
;
739 int maxfd
, listen_sock
, listen_priv_sock
, selret
;
740 struct timeval timeout
;
742 /* We'll be doing this a lot */
744 /* Handle messages */
748 /* refresh the trusted domain cache */
750 rescan_trusted_domains();
752 /* Free up temporary memory */
755 main_loop_talloc_free();
757 /* Initialise fd lists for select() */
759 listen_sock
= open_winbindd_socket();
760 listen_priv_sock
= open_winbindd_priv_socket();
762 if (listen_sock
== -1 || listen_priv_sock
== -1) {
763 perror("open_winbind_socket");
767 maxfd
= MAX(listen_sock
, listen_priv_sock
);
771 FD_SET(listen_sock
, &r_fds
);
772 FD_SET(listen_priv_sock
, &r_fds
);
774 timeout
.tv_sec
= WINBINDD_ESTABLISH_LOOP
;
777 /* Set up client readers and writers */
779 state
= winbindd_client_list();
783 struct winbindd_cli_state
*next
= state
->next
;
785 /* Dispose of client connection if it is marked as
789 remove_client(state
);
794 for (ev
= fd_events
; ev
; ev
= ev
->next
) {
795 if (ev
->flags
& EVENT_FD_READ
) {
796 FD_SET(ev
->fd
, &r_fds
);
797 maxfd
= MAX(ev
->fd
, maxfd
);
799 if (ev
->flags
& EVENT_FD_WRITE
) {
800 FD_SET(ev
->fd
, &w_fds
);
801 maxfd
= MAX(ev
->fd
, maxfd
);
807 selret
= sys_select(maxfd
+ 1, &r_fds
, &w_fds
, NULL
, &timeout
);
812 if ((selret
== -1 && errno
!= EINTR
) || selret
== 0) {
814 /* Select error, something is badly wrong */
822 struct fd_event
*next
= ev
->next
;
824 if (FD_ISSET(ev
->fd
, &r_fds
))
825 flags
|= EVENT_FD_READ
;
826 if (FD_ISSET(ev
->fd
, &w_fds
))
827 flags
|= EVENT_FD_WRITE
;
829 ev
->handler(ev
, flags
);
833 if (FD_ISSET(listen_sock
, &r_fds
)) {
834 while (winbindd_num_clients() >
835 WINBINDD_MAX_SIMULTANEOUS_CLIENTS
- 1) {
836 DEBUG(5,("winbindd: Exceeding %d client "
837 "connections, removing idle "
839 WINBINDD_MAX_SIMULTANEOUS_CLIENTS
));
840 if (!remove_idle_client()) {
841 DEBUG(0,("winbindd: Exceeding %d "
842 "client connections, no idle "
843 "connection found\n",
844 WINBINDD_MAX_SIMULTANEOUS_CLIENTS
));
848 /* new, non-privileged connection */
849 new_connection(listen_sock
, False
);
852 if (FD_ISSET(listen_priv_sock
, &r_fds
)) {
853 while (winbindd_num_clients() >
854 WINBINDD_MAX_SIMULTANEOUS_CLIENTS
- 1) {
855 DEBUG(5,("winbindd: Exceeding %d client "
856 "connections, removing idle "
858 WINBINDD_MAX_SIMULTANEOUS_CLIENTS
));
859 if (!remove_idle_client()) {
860 DEBUG(0,("winbindd: Exceeding %d "
861 "client connections, no idle "
862 "connection found\n",
863 WINBINDD_MAX_SIMULTANEOUS_CLIENTS
));
867 /* new, privileged connection */
868 new_connection(listen_priv_sock
, True
);
874 winbindd_check_cache_size(time(NULL
));
877 /* Check signal handling things */
884 DEBUG(3, ("got SIGHUP\n"));
886 msg_reload_services(MSG_SMB_CONF_UPDATED
, pid_to_procid(0), NULL
, 0);
891 print_winbindd_status();
900 while ((pid
= sys_waitpid(-1, NULL
, WNOHANG
)) > 0) {
901 winbind_child_died(pid
);
908 struct winbindd_state server_state
; /* Server state information */
910 int main(int argc
, char **argv
)
913 static BOOL Fork
= True
;
914 static BOOL log_stdout
= False
;
915 struct poptOption long_options
[] = {
917 { "stdout", 'S', POPT_ARG_VAL
, &log_stdout
, True
, "Log to stdout" },
918 { "foreground", 'F', POPT_ARG_VAL
, &Fork
, False
, "Daemon in foreground mode" },
919 { "interactive", 'i', POPT_ARG_NONE
, NULL
, 'i', "Interactive mode" },
920 { "no-caching", 'n', POPT_ARG_VAL
, &opt_nocache
, True
, "Disable caching" },
927 /* glibc (?) likes to print "User defined signal 1" and exit if a
928 SIGUSR[12] is received before a handler is installed */
930 CatchSignal(SIGUSR1
, SIG_IGN
);
931 CatchSignal(SIGUSR2
, SIG_IGN
);
933 fault_setup((void (*)(void *))fault_quit
);
935 /* Initialise for running in non-root mode */
939 set_remote_machine_name("winbindd", False
);
941 /* Set environment variable so we don't recursively call ourselves.
942 This may also be useful interactively. */
944 setenv(WINBINDD_DONT_ENV
, "1", 1);
946 /* Initialise samba/rpc client stuff */
948 pc
= poptGetContext("winbindd", argc
, (const char **)argv
, long_options
,
949 POPT_CONTEXT_KEEP_FIRST
);
951 while ((opt
= poptGetNextOpt(pc
)) != -1) {
953 /* Don't become a daemon */
963 if (log_stdout
&& Fork
) {
964 printf("Can't log to stdout (-S) unless daemon is in foreground +(-F) or interactive (-i)\n");
965 poptPrintUsage(pc
, stderr
, 0);
969 if (!override_logfile
) {
970 pstr_sprintf(logfile
, "%s/log.winbindd", dyn_LOGFILEBASE
);
971 lp_set_logfile(logfile
);
973 setup_logging("winbindd", log_stdout
);
976 DEBUG(1, ("winbindd version %s started.\n", SAMBA_VERSION_STRING
) );
977 DEBUGADD( 1, ( "Copyright The Samba Team 2000-2004\n" ) );
979 if (!reload_services_file()) {
980 DEBUG(0, ("error opening config file\n"));
991 if (!secrets_init()) {
993 DEBUG(0,("Could not initialize domain trust account secrets. Giving up\n"));
997 /* Enable netbios namecache */
1001 /* Check winbindd parameters are valid */
1003 ZERO_STRUCT(server_state
);
1005 /* Winbind daemon initialisation */
1007 if ( (!winbindd_param_init()) || (!winbindd_upgrade_idmap()) ||
1008 (!idmap_init(lp_idmap_backend())) ) {
1009 DEBUG(1, ("Could not init idmap -- netlogon proxy only\n"));
1010 idmap_set_proxyonly();
1013 /* Unblock all signals we are interested in as they may have been
1014 blocked by the parent process. */
1016 BlockSignals(False
, SIGINT
);
1017 BlockSignals(False
, SIGQUIT
);
1018 BlockSignals(False
, SIGTERM
);
1019 BlockSignals(False
, SIGUSR1
);
1020 BlockSignals(False
, SIGUSR2
);
1021 BlockSignals(False
, SIGHUP
);
1022 BlockSignals(False
, SIGCHLD
);
1024 /* Setup signal handlers */
1026 CatchSignal(SIGINT
, termination_handler
); /* Exit on these sigs */
1027 CatchSignal(SIGQUIT
, termination_handler
);
1028 CatchSignal(SIGTERM
, termination_handler
);
1029 CatchSignal(SIGCHLD
, sigchld_handler
);
1031 CatchSignal(SIGPIPE
, SIG_IGN
); /* Ignore sigpipe */
1033 CatchSignal(SIGUSR2
, sigusr2_handler
); /* Debugging sigs */
1034 CatchSignal(SIGHUP
, sighup_handler
);
1037 become_daemon(Fork
);
1039 pidfile_create("winbindd");
1043 * If we're interactive we want to set our own process group for
1044 * signal management.
1047 setpgid( (pid_t
)0, (pid_t
)0);
1052 /* Initialise messaging system */
1054 if (!message_init()) {
1055 DEBUG(0, ("unable to initialise messaging system\n"));
1059 /* React on 'smbcontrol winbindd reload-config' in the same way
1060 as to SIGHUP signal */
1061 message_register(MSG_SMB_CONF_UPDATED
, msg_reload_services
);
1062 message_register(MSG_SHUTDOWN
, msg_shutdown
);
1064 poptFreeContext(pc
);
1070 /* Loop waiting for requests */
1075 trustdom_cache_shutdown();