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
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 2 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, write to the Free Software
22 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
28 BOOL opt_nocache
= False
;
29 BOOL opt_dual_daemon
= True
;
31 extern BOOL override_logfile
;
33 /* Reload configuration */
35 static BOOL
reload_services_file(void)
42 pstrcpy(fname
,lp_configfile());
43 if (file_exist(fname
,NULL
) && !strcsequal(fname
,dyn_CONFIGFILE
)) {
44 pstrcpy(dyn_CONFIGFILE
,fname
);
49 ret
= lp_load(dyn_CONFIGFILE
,False
,False
,True
);
60 /**************************************************************************** **
61 Prepare to dump a core file - carefully!
62 **************************************************************************** */
64 static BOOL
dump_core(void)
68 pstrcpy( dname
, lp_logfile() );
69 if ((p
=strrchr(dname
,'/')))
71 pstrcat( dname
, "/corefiles" );
73 sys_chown( dname
, getuid(), getgid() );
83 getrlimit( RLIMIT_CORE
, &rlp
);
84 rlp
.rlim_cur
= MAX( 4*1024*1024, rlp
.rlim_cur
);
85 setrlimit( RLIMIT_CORE
, &rlp
);
86 getrlimit( RLIMIT_CORE
, &rlp
);
87 DEBUG( 3, ( "Core limits now %d %d\n", (int)rlp
.rlim_cur
, (int)rlp
.rlim_max
) );
92 DEBUG(0,("Dumping core in %s\n",dname
));
98 /**************************************************************************** **
100 **************************************************************************** */
102 static void fault_quit(void)
109 static void winbindd_status(void)
111 struct winbindd_cli_state
*tmp
;
113 DEBUG(0, ("winbindd status:\n"));
115 /* Print client state information */
117 DEBUG(0, ("\t%d clients currently active\n", winbindd_num_clients()));
119 if (DEBUGLEVEL
>= 2 && winbindd_num_clients()) {
120 DEBUG(2, ("\tclient list:\n"));
121 for(tmp
= winbindd_client_list(); tmp
; tmp
= tmp
->next
) {
122 DEBUG(2, ("\t\tpid %lu, sock %d, rbl %d, wbl %d\n",
123 (unsigned long)tmp
->pid
, tmp
->sock
, tmp
->read_buf_len
,
124 tmp
->write_buf_len
));
129 /* Print winbindd status to log file */
131 static void print_winbindd_status(void)
134 winbindd_cm_status();
137 /* Flush client cache */
139 static void flush_caches(void)
142 /* Clear cached user and group enumation info */
143 if (!opt_dual_daemon
) /* Until we have coherent cache flush. */
144 wcache_flush_cache();
147 /* We need to invalidate cached user list entries on a SIGHUP
148 otherwise cached access denied errors due to restrict anonymous
149 hang around until the sequence number changes. */
151 wcache_invalidate_cache();
154 /* Handle the signal by unlinking socket and exiting */
156 static void terminate(void)
162 /* Remove socket file */
163 pstr_sprintf(path
, "%s/%s",
164 WINBINDD_SOCKET_DIR
, WINBINDD_SOCKET_NAME
);
169 static BOOL do_sigterm
;
171 static void termination_handler(int signum
)
177 static BOOL do_sigusr2
;
179 static void sigusr2_handler(int signum
)
185 static BOOL do_sighup
;
187 static void sighup_handler(int signum
)
193 static void sigchld_handler(int signum
)
198 while ((pid
= wait(&status
)) != -1 || errno
== EINTR
) {
199 continue; /* Reap children */
204 /* React on 'smbcontrol winbindd reload-config' in the same way as on SIGHUP*/
205 static void msg_reload_services(int msg_type
, pid_t src
, void *buf
, size_t len
)
207 /* Flush various caches */
209 reload_services_file();
212 /* React on 'smbcontrol winbindd shutdown' in the same way as on SIGTERM*/
213 static void msg_shutdown(int msg_type
, pid_t src
, void *buf
, size_t len
)
218 struct dispatch_table
{
219 enum winbindd_cmd cmd
;
220 enum winbindd_result (*fn
)(struct winbindd_cli_state
*state
);
221 const char *winbindd_cmd_name
;
224 static struct dispatch_table dispatch_table
[] = {
228 { WINBINDD_GETPWNAM
, winbindd_getpwnam
, "GETPWNAM" },
229 { WINBINDD_GETPWUID
, winbindd_getpwuid
, "GETPWUID" },
231 { WINBINDD_SETPWENT
, winbindd_setpwent
, "SETPWENT" },
232 { WINBINDD_ENDPWENT
, winbindd_endpwent
, "ENDPWENT" },
233 { WINBINDD_GETPWENT
, winbindd_getpwent
, "GETPWENT" },
235 { WINBINDD_GETGROUPS
, winbindd_getgroups
, "GETGROUPS" },
236 { WINBINDD_GETUSERSIDS
, winbindd_getusersids
, "GETUSERSIDS" },
238 /* Group functions */
240 { WINBINDD_GETGRNAM
, winbindd_getgrnam
, "GETGRNAM" },
241 { WINBINDD_GETGRGID
, winbindd_getgrgid
, "GETGRGID" },
242 { WINBINDD_SETGRENT
, winbindd_setgrent
, "SETGRENT" },
243 { WINBINDD_ENDGRENT
, winbindd_endgrent
, "ENDGRENT" },
244 { WINBINDD_GETGRENT
, winbindd_getgrent
, "GETGRENT" },
245 { WINBINDD_GETGRLST
, winbindd_getgrent
, "GETGRLST" },
247 /* PAM auth functions */
249 { WINBINDD_PAM_AUTH
, winbindd_pam_auth
, "PAM_AUTH" },
250 { WINBINDD_PAM_AUTH_CRAP
, winbindd_pam_auth_crap
, "AUTH_CRAP" },
251 { WINBINDD_PAM_CHAUTHTOK
, winbindd_pam_chauthtok
, "CHAUTHTOK" },
253 /* Enumeration functions */
255 { WINBINDD_LIST_USERS
, winbindd_list_users
, "LIST_USERS" },
256 { WINBINDD_LIST_GROUPS
, winbindd_list_groups
, "LIST_GROUPS" },
257 { WINBINDD_LIST_TRUSTDOM
, winbindd_list_trusted_domains
, "LIST_TRUSTDOM" },
258 { WINBINDD_SHOW_SEQUENCE
, winbindd_show_sequence
, "SHOW_SEQUENCE" },
260 /* SID related functions */
262 { WINBINDD_LOOKUPSID
, winbindd_lookupsid
, "LOOKUPSID" },
263 { WINBINDD_LOOKUPNAME
, winbindd_lookupname
, "LOOKUPNAME" },
265 /* Lookup related functions */
267 { WINBINDD_SID_TO_UID
, winbindd_sid_to_uid
, "SID_TO_UID" },
268 { WINBINDD_SID_TO_GID
, winbindd_sid_to_gid
, "SID_TO_GID" },
269 { WINBINDD_GID_TO_SID
, winbindd_gid_to_sid
, "GID_TO_SID" },
270 { WINBINDD_UID_TO_SID
, winbindd_uid_to_sid
, "UID_TO_SID" },
271 { WINBINDD_ALLOCATE_RID
, winbindd_allocate_rid
, "ALLOCATE_RID" },
275 { WINBINDD_CHECK_MACHACC
, winbindd_check_machine_acct
, "CHECK_MACHACC" },
276 { WINBINDD_PING
, winbindd_ping
, "PING" },
277 { WINBINDD_INFO
, winbindd_info
, "INFO" },
278 { WINBINDD_INTERFACE_VERSION
, winbindd_interface_version
, "INTERFACE_VERSION" },
279 { WINBINDD_DOMAIN_NAME
, winbindd_domain_name
, "DOMAIN_NAME" },
280 { WINBINDD_DOMAIN_INFO
, winbindd_domain_info
, "DOMAIN_INFO" },
281 { WINBINDD_NETBIOS_NAME
, winbindd_netbios_name
, "NETBIOS_NAME" },
282 { WINBINDD_PRIV_PIPE_DIR
, winbindd_priv_pipe_dir
, "WINBINDD_PRIV_PIPE_DIR" },
286 { WINBINDD_WINS_BYNAME
, winbindd_wins_byname
, "WINS_BYNAME" },
287 { WINBINDD_WINS_BYIP
, winbindd_wins_byip
, "WINS_BYIP" },
289 /* UNIX account management functions */
290 { WINBINDD_CREATE_USER
, winbindd_create_user
, "CREATE_USER" },
291 { WINBINDD_CREATE_GROUP
, winbindd_create_group
, "CREATE_GROUP" },
292 { WINBINDD_ADD_USER_TO_GROUP
, winbindd_add_user_to_group
, "ADD_USER_TO_GROUP" },
293 { WINBINDD_REMOVE_USER_FROM_GROUP
, winbindd_remove_user_from_group
,"REMOVE_USER_FROM_GROUP"},
294 { WINBINDD_SET_USER_PRIMARY_GROUP
, winbindd_set_user_primary_group
,"SET_USER_PRIMARY_GROUP"},
295 { WINBINDD_DELETE_USER
, winbindd_delete_user
, "DELETE_USER" },
296 { WINBINDD_DELETE_GROUP
, winbindd_delete_group
, "DELETE_GROUP" },
300 { WINBINDD_NUM_CMDS
, NULL
, "NONE" }
303 static void process_request(struct winbindd_cli_state
*state
)
305 struct dispatch_table
*table
= dispatch_table
;
307 /* Free response data - we may be interrupted and receive another
308 command before being able to send this data off. */
310 SAFE_FREE(state
->response
.extra_data
);
312 ZERO_STRUCT(state
->response
);
314 state
->response
.result
= WINBINDD_ERROR
;
315 state
->response
.length
= sizeof(struct winbindd_response
);
317 /* Process command */
319 for (table
= dispatch_table
; table
->fn
; table
++) {
320 if (state
->request
.cmd
== table
->cmd
) {
321 DEBUG(10,("process_request: request fn %s\n", table
->winbindd_cmd_name
));
322 state
->response
.result
= table
->fn(state
);
328 DEBUG(10,("process_request: unknown request fn number %d\n", (int)state
->request
.cmd
));
330 /* In case extra data pointer is NULL */
332 if (!state
->response
.extra_data
)
333 state
->response
.length
= sizeof(struct winbindd_response
);
336 /* Process a new connection by adding it to the client connection list */
338 static void new_connection(int listen_sock
, BOOL privileged
)
340 struct sockaddr_un sunaddr
;
341 struct winbindd_cli_state
*state
;
345 /* Accept connection */
347 len
= sizeof(sunaddr
);
350 sock
= accept(listen_sock
, (struct sockaddr
*)&sunaddr
, &len
);
351 } while (sock
== -1 && errno
== EINTR
);
356 DEBUG(6,("accepted socket %d\n", sock
));
358 /* Create new connection structure */
360 if ((state
= SMB_MALLOC_P(struct winbindd_cli_state
)) == NULL
)
366 state
->last_access
= time(NULL
);
368 state
->privileged
= privileged
;
370 /* Add to connection list */
372 winbindd_add_client(state
);
375 /* Remove a client connection from client connection list */
377 static void remove_client(struct winbindd_cli_state
*state
)
379 /* It's a dead client - hold a funeral */
387 /* Free any getent state */
389 free_getent_state(state
->getpwent_state
);
390 free_getent_state(state
->getgrent_state
);
392 /* We may have some extra data that was not freed if the
393 client was killed unexpectedly */
395 SAFE_FREE(state
->response
.extra_data
);
397 /* Remove from list and free */
399 winbindd_remove_client(state
);
405 /* Shutdown client connection which has been idle for the longest time */
407 static BOOL
remove_idle_client(void)
409 struct winbindd_cli_state
*state
, *remove_state
= NULL
;
410 time_t last_access
= 0;
413 for (state
= winbindd_client_list(); state
; state
= state
->next
) {
414 if (state
->read_buf_len
== 0 && state
->write_buf_len
== 0 &&
415 !state
->getpwent_state
&& !state
->getgrent_state
) {
417 if (!last_access
|| state
->last_access
< last_access
) {
418 last_access
= state
->last_access
;
419 remove_state
= state
;
425 DEBUG(5,("Found %d idle client connections, shutting down sock %d, pid %u\n",
426 nidle
, remove_state
->sock
, (unsigned int)remove_state
->pid
));
427 remove_client(remove_state
);
434 /* Process a complete received packet from a client */
436 void winbind_process_packet(struct winbindd_cli_state
*state
)
438 /* Process request */
440 /* Ensure null termination of entire request */
441 state
->request
.null_term
= '\0';
443 state
->pid
= state
->request
.pid
;
445 process_request(state
);
447 /* Update client state */
449 state
->read_buf_len
= 0;
450 state
->write_buf_len
= sizeof(struct winbindd_response
);
452 /* we might need to send it to the dual daemon */
453 if (opt_dual_daemon
) {
454 dual_send_request(state
);
458 /* Read some data from a client connection */
460 void winbind_client_read(struct winbindd_cli_state
*state
)
466 n
= sys_read(state
->sock
, state
->read_buf_len
+
467 (char *)&state
->request
,
468 sizeof(state
->request
) - state
->read_buf_len
);
470 DEBUG(10,("client_read: read %d bytes. Need %ld more for a full request.\n", n
, (unsigned long)(sizeof(state
->request
) - n
- state
->read_buf_len
) ));
472 /* Read failed, kill client */
474 if (n
== -1 || n
== 0) {
475 DEBUG(5,("read failed on sock %d, pid %lu: %s\n",
476 state
->sock
, (unsigned long)state
->pid
,
477 (n
== -1) ? strerror(errno
) : "EOF"));
479 state
->finished
= True
;
483 /* Update client state */
485 state
->read_buf_len
+= n
;
486 state
->last_access
= time(NULL
);
489 /* Write some data to a client connection */
491 static void client_write(struct winbindd_cli_state
*state
)
496 /* Write some data */
498 * The fancy calculation of data below allows us to handle the
499 * case where write (sys_write) does not write all the data we
500 * gave it. In that case, we will come back through here again
501 * because of the loop above us, and we want to pick up where
505 if (!state
->write_extra_data
) {
507 /* Write response structure */
509 data
= (char *)&state
->response
+ sizeof(state
->response
) -
510 state
->write_buf_len
;
514 /* Write extra data */
516 data
= (char *)state
->response
.extra_data
+
517 state
->response
.length
-
518 sizeof(struct winbindd_response
) -
519 state
->write_buf_len
;
522 num_written
= sys_write(state
->sock
, data
, state
->write_buf_len
);
524 DEBUG(10,("client_write: wrote %d bytes.\n", num_written
));
526 /* Write failed, kill cilent */
528 if (num_written
== -1 || num_written
== 0) {
530 DEBUG(3,("write failed on sock %d, pid %lu: %s\n",
531 state
->sock
, (unsigned long)state
->pid
,
532 (num_written
== -1) ? strerror(errno
) : "EOF"));
534 state
->finished
= True
;
536 SAFE_FREE(state
->response
.extra_data
);
541 /* Update client state */
543 state
->write_buf_len
-= num_written
;
544 state
->last_access
= time(NULL
);
546 /* Have we written all data? */
548 if (state
->write_buf_len
== 0) {
550 /* Take care of extra data */
552 if (state
->write_extra_data
) {
554 SAFE_FREE(state
->response
.extra_data
);
556 state
->write_extra_data
= False
;
558 DEBUG(10,("client_write: client_write: complete response written.\n"));
560 } else if (state
->response
.length
>
561 sizeof(struct winbindd_response
)) {
563 /* Start writing extra data */
565 state
->write_buf_len
=
566 state
->response
.length
-
567 sizeof(struct winbindd_response
);
569 DEBUG(10,("client_write: need to write %d extra data bytes.\n", (int)state
->write_buf_len
));
571 state
->write_extra_data
= True
;
576 /* Process incoming clients on listen_sock. We use a tricky non-blocking,
577 non-forking, non-threaded model which allows us to handle many
578 simultaneous connections while remaining impervious to many denial of
581 static void process_loop(void)
583 /* We'll be doing this a lot */
586 struct winbindd_cli_state
*state
;
588 int maxfd
, listen_sock
, listen_priv_sock
, selret
;
589 struct timeval timeout
;
592 /* Handle messages */
596 /* refresh the trusted domain cache */
598 rescan_trusted_domains();
600 /* Free up temporary memory */
603 main_loop_talloc_free();
605 /* Initialise fd lists for select() */
607 listen_sock
= open_winbindd_socket();
608 listen_priv_sock
= open_winbindd_priv_socket();
610 if (listen_sock
== -1 || listen_priv_sock
== -1) {
611 perror("open_winbind_socket");
615 maxfd
= MAX(listen_sock
, listen_priv_sock
);
619 FD_SET(listen_sock
, &r_fds
);
620 FD_SET(listen_priv_sock
, &r_fds
);
622 timeout
.tv_sec
= WINBINDD_ESTABLISH_LOOP
;
625 if (opt_dual_daemon
) {
626 maxfd
= dual_select_setup(&w_fds
, maxfd
);
629 /* Set up client readers and writers */
631 state
= winbindd_client_list();
635 /* Dispose of client connection if it is marked as
638 if (state
->finished
) {
639 struct winbindd_cli_state
*next
= state
->next
;
641 remove_client(state
);
646 /* Select requires we know the highest fd used */
648 if (state
->sock
> maxfd
)
651 /* Add fd for reading */
653 if (state
->read_buf_len
!= sizeof(state
->request
))
654 FD_SET(state
->sock
, &r_fds
);
656 /* Add fd for writing */
658 if (state
->write_buf_len
)
659 FD_SET(state
->sock
, &w_fds
);
666 selret
= sys_select(maxfd
+ 1, &r_fds
, &w_fds
, NULL
, &timeout
);
671 if ((selret
== -1 && errno
!= EINTR
) || selret
== 0) {
673 /* Select error, something is badly wrong */
679 /* Create a new connection if listen_sock readable */
683 if (opt_dual_daemon
) {
687 if (FD_ISSET(listen_sock
, &r_fds
)) {
688 while (winbindd_num_clients() > WINBINDD_MAX_SIMULTANEOUS_CLIENTS
- 1) {
689 DEBUG(5,("winbindd: Exceeding %d client connections, removing idle connection.\n",
690 WINBINDD_MAX_SIMULTANEOUS_CLIENTS
));
691 if (!remove_idle_client()) {
692 DEBUG(0,("winbindd: Exceeding %d client connections, no idle connection found\n",
693 WINBINDD_MAX_SIMULTANEOUS_CLIENTS
));
697 /* new, non-privileged connection */
698 new_connection(listen_sock
, False
);
701 if (FD_ISSET(listen_priv_sock
, &r_fds
)) {
702 while (winbindd_num_clients() > WINBINDD_MAX_SIMULTANEOUS_CLIENTS
- 1) {
703 DEBUG(5,("winbindd: Exceeding %d client connections, removing idle connection.\n",
704 WINBINDD_MAX_SIMULTANEOUS_CLIENTS
));
705 if (!remove_idle_client()) {
706 DEBUG(0,("winbindd: Exceeding %d client connections, no idle connection found\n",
707 WINBINDD_MAX_SIMULTANEOUS_CLIENTS
));
711 /* new, privileged connection */
712 new_connection(listen_priv_sock
, True
);
715 /* Process activity on client connections */
717 for (state
= winbindd_client_list(); state
;
718 state
= state
->next
) {
720 /* Data available for writing */
722 if (FD_ISSET(state
->sock
, &w_fds
))
726 for (state
= winbindd_client_list(); state
;
727 state
= state
->next
) {
729 /* Data available for reading */
731 if (FD_ISSET(state
->sock
, &r_fds
)) {
735 winbind_client_read(state
);
738 * If we have the start of a
739 * packet, then check the
740 * length field to make sure
741 * the client's not talking
745 if (state
->read_buf_len
>= sizeof(uint32
)
746 && *(uint32
*) &state
->request
!= sizeof(state
->request
)) {
747 DEBUG(0,("process_loop: Invalid request size from pid %lu: %d bytes sent, should be %ld\n",
748 (unsigned long)state
->request
.pid
, *(uint32
*) &state
->request
, (unsigned long)sizeof(state
->request
)));
749 DEBUGADD(0, ("This usually means that you are running old wbinfo, pam_winbind or libnss_winbind clients\n"));
751 remove_client(state
);
755 /* A request packet might be
758 if (state
->read_buf_len
==
759 sizeof(state
->request
)) {
760 winbind_process_packet(state
);
761 winbindd_demote_client(state
);
769 winbindd_check_cache_size(time(NULL
));
772 /* Check signal handling things */
779 DEBUG(3, ("got SIGHUP\n"));
781 msg_reload_services(MSG_SMB_CONF_UPDATED
, (pid_t
) 0, NULL
, 0);
786 print_winbindd_status();
794 struct winbindd_state server_state
; /* Server state information */
796 int main(int argc
, char **argv
)
799 static BOOL interactive
= False
;
800 static BOOL Fork
= True
;
801 static BOOL log_stdout
= False
;
802 struct poptOption long_options
[] = {
804 { "stdout", 'S', POPT_ARG_VAL
, &log_stdout
, True
, "Log to stdout" },
805 { "foreground", 'F', POPT_ARG_VAL
, &Fork
, False
, "Daemon in foreground mode" },
806 { "interactive", 'i', POPT_ARG_NONE
, NULL
, 'i', "Interactive mode" },
807 { "single-daemon", 'Y', POPT_ARG_VAL
, &opt_dual_daemon
, False
, "Single daemon mode" },
808 { "no-caching", 'n', POPT_ARG_VAL
, &opt_nocache
, True
, "Disable caching" },
815 /* glibc (?) likes to print "User defined signal 1" and exit if a
816 SIGUSR[12] is received before a handler is installed */
818 CatchSignal(SIGUSR1
, SIG_IGN
);
819 CatchSignal(SIGUSR2
, SIG_IGN
);
821 fault_setup((void (*)(void *))fault_quit
);
823 /* Initialise for running in non-root mode */
827 set_remote_machine_name("winbindd", False
);
829 /* Set environment variable so we don't recursively call ourselves.
830 This may also be useful interactively. */
832 setenv(WINBINDD_DONT_ENV
, "1", 1);
834 /* Initialise samba/rpc client stuff */
836 pc
= poptGetContext("winbindd", argc
, (const char **)argv
, long_options
,
837 POPT_CONTEXT_KEEP_FIRST
);
839 while ((opt
= poptGetNextOpt(pc
)) != -1) {
841 /* Don't become a daemon */
851 if (log_stdout
&& Fork
) {
852 printf("Can't log to stdout (-S) unless daemon is in foreground +(-F) or interactive (-i)\n");
853 poptPrintUsage(pc
, stderr
, 0);
857 if (!override_logfile
) {
858 pstr_sprintf(logfile
, "%s/log.winbindd", dyn_LOGFILEBASE
);
859 lp_set_logfile(logfile
);
861 setup_logging("winbindd", log_stdout
);
864 DEBUG(1, ("winbindd version %s started.\n", SAMBA_VERSION_STRING
) );
865 DEBUGADD( 1, ( "Copyright The Samba Team 2000-2004\n" ) );
867 if (!reload_services_file()) {
868 DEBUG(0, ("error opening config file\n"));
879 if (!secrets_init()) {
881 DEBUG(0,("Could not initialize domain trust account secrets. Giving up\n"));
885 /* Enable netbios namecache */
889 /* Check winbindd parameters are valid */
891 ZERO_STRUCT(server_state
);
893 /* Winbind daemon initialisation */
895 if ( (!winbindd_param_init()) || (!winbindd_upgrade_idmap()) ||
896 (!idmap_init(lp_idmap_backend())) ) {
897 DEBUG(1, ("Could not init idmap -- netlogon proxy only\n"));
901 /* Unblock all signals we are interested in as they may have been
902 blocked by the parent process. */
904 BlockSignals(False
, SIGINT
);
905 BlockSignals(False
, SIGQUIT
);
906 BlockSignals(False
, SIGTERM
);
907 BlockSignals(False
, SIGUSR1
);
908 BlockSignals(False
, SIGUSR2
);
909 BlockSignals(False
, SIGHUP
);
910 BlockSignals(False
, SIGCHLD
);
912 /* Setup signal handlers */
914 CatchSignal(SIGINT
, termination_handler
); /* Exit on these sigs */
915 CatchSignal(SIGQUIT
, termination_handler
);
916 CatchSignal(SIGTERM
, termination_handler
);
917 CatchSignal(SIGCHLD
, sigchld_handler
);
919 CatchSignal(SIGPIPE
, SIG_IGN
); /* Ignore sigpipe */
921 CatchSignal(SIGUSR2
, sigusr2_handler
); /* Debugging sigs */
922 CatchSignal(SIGHUP
, sighup_handler
);
927 pidfile_create("winbindd");
931 * If we're interactive we want to set our own process group for
935 setpgid( (pid_t
)0, (pid_t
)0);
938 if (opt_dual_daemon
) {
942 /* Initialise messaging system */
944 if (!message_init()) {
945 DEBUG(0, ("unable to initialise messaging system\n"));
949 /* React on 'smbcontrol winbindd reload-config' in the same way
950 as to SIGHUP signal */
951 message_register(MSG_SMB_CONF_UPDATED
, msg_reload_services
);
952 message_register(MSG_SHUTDOWN
, msg_shutdown
);
956 netsamlogon_cache_init(); /* Non-critical */
960 /* Loop waiting for requests */
964 trustdom_cache_shutdown();