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 3 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, see <http://www.gnu.org/licenses/>.
27 #include "../../nsswitch/libwbclient/wbc_async.h"
30 #define DBGC_CLASS DBGC_WINBIND
32 static void remove_client(struct winbindd_cli_state
*state
);
34 static bool opt_nocache
= False
;
35 static bool interactive
= False
;
37 extern bool override_logfile
;
39 struct event_context
*winbind_event_context(void)
41 static struct event_context
*ctx
;
43 if (!ctx
&& !(ctx
= event_context_init(NULL
))) {
44 smb_panic("Could not init winbind event context");
49 struct messaging_context
*winbind_messaging_context(void)
51 static struct messaging_context
*ctx
;
54 ctx
= messaging_init(NULL
, server_id_self(),
55 winbind_event_context());
58 DEBUG(0, ("Could not init winbind messaging context.\n"));
63 /* Reload configuration */
65 static bool reload_services_file(const char *lfile
)
70 const char *fname
= lp_configfile();
72 if (file_exist(fname
) && !strcsequal(fname
,get_dyn_CONFIGFILE())) {
73 set_dyn_CONFIGFILE(fname
);
77 /* if this is a child, restore the logfile to the special
78 name - <domain>, idmap, etc. */
79 if (lfile
&& *lfile
) {
80 lp_set_logfile(lfile
);
84 ret
= lp_load(get_dyn_CONFIGFILE(),False
,False
,True
,True
);
93 /**************************************************************************** **
95 **************************************************************************** */
97 static void fault_quit(void)
102 static void winbindd_status(void)
104 struct winbindd_cli_state
*tmp
;
106 DEBUG(0, ("winbindd status:\n"));
108 /* Print client state information */
110 DEBUG(0, ("\t%d clients currently active\n", winbindd_num_clients()));
112 if (DEBUGLEVEL
>= 2 && winbindd_num_clients()) {
113 DEBUG(2, ("\tclient list:\n"));
114 for(tmp
= winbindd_client_list(); tmp
; tmp
= tmp
->next
) {
115 DEBUGADD(2, ("\t\tpid %lu, sock %d\n",
116 (unsigned long)tmp
->pid
, tmp
->sock
));
121 /* Print winbindd status to log file */
123 static void print_winbindd_status(void)
128 /* Flush client cache */
130 static void flush_caches(void)
132 /* We need to invalidate cached user list entries on a SIGHUP
133 otherwise cached access denied errors due to restrict anonymous
134 hang around until the sequence number changes. */
136 if (!wcache_invalidate_cache()) {
137 DEBUG(0, ("invalidating the cache failed; revalidate the cache\n"));
138 if (!winbindd_cache_validate_and_initialize()) {
144 /* Handle the signal by unlinking socket and exiting */
146 static void terminate(bool is_parent
)
149 /* When parent goes away we should
150 * remove the socket file. Not so
151 * when children terminate.
155 if (asprintf(&path
, "%s/%s",
156 get_winbind_pipe_dir(), WINBINDD_SOCKET_NAME
) > 0) {
164 trustdom_cache_shutdown();
166 gencache_stabilize();
170 TALLOC_CTX
*mem_ctx
= talloc_init("end_description");
171 char *description
= talloc_describe_all(mem_ctx
);
173 DEBUG(3, ("tallocs left:\n%s\n", description
));
174 talloc_destroy(mem_ctx
);
185 static void winbindd_sig_term_handler(struct tevent_context
*ev
,
186 struct tevent_signal
*se
,
192 bool *is_parent
= talloc_get_type_abort(private_data
, bool);
194 DEBUG(0,("Got sig[%d] terminate (is_parent=%d)\n",
195 signum
, (int)*is_parent
));
196 terminate(*is_parent
);
199 bool winbindd_setup_sig_term_handler(bool parent
)
201 struct tevent_signal
*se
;
204 is_parent
= talloc(winbind_event_context(), bool);
211 se
= tevent_add_signal(winbind_event_context(),
214 winbindd_sig_term_handler
,
217 DEBUG(0,("failed to setup SIGTERM handler"));
218 talloc_free(is_parent
);
222 se
= tevent_add_signal(winbind_event_context(),
225 winbindd_sig_term_handler
,
228 DEBUG(0,("failed to setup SIGINT handler"));
229 talloc_free(is_parent
);
233 se
= tevent_add_signal(winbind_event_context(),
236 winbindd_sig_term_handler
,
239 DEBUG(0,("failed to setup SIGINT handler"));
240 talloc_free(is_parent
);
247 static void winbindd_sig_hup_handler(struct tevent_context
*ev
,
248 struct tevent_signal
*se
,
254 const char *file
= (const char *)private_data
;
256 DEBUG(1,("Reloading services after SIGHUP\n"));
258 reload_services_file(file
);
261 bool winbindd_setup_sig_hup_handler(const char *lfile
)
263 struct tevent_signal
*se
;
267 file
= talloc_strdup(winbind_event_context(),
274 se
= tevent_add_signal(winbind_event_context(),
275 winbind_event_context(),
277 winbindd_sig_hup_handler
,
286 static void winbindd_sig_chld_handler(struct tevent_context
*ev
,
287 struct tevent_signal
*se
,
295 while ((pid
= sys_waitpid(-1, NULL
, WNOHANG
)) > 0) {
296 winbind_child_died(pid
);
300 static bool winbindd_setup_sig_chld_handler(void)
302 struct tevent_signal
*se
;
304 se
= tevent_add_signal(winbind_event_context(),
305 winbind_event_context(),
307 winbindd_sig_chld_handler
,
316 static void winbindd_sig_usr2_handler(struct tevent_context
*ev
,
317 struct tevent_signal
*se
,
323 print_winbindd_status();
326 static bool winbindd_setup_sig_usr2_handler(void)
328 struct tevent_signal
*se
;
330 se
= tevent_add_signal(winbind_event_context(),
331 winbind_event_context(),
333 winbindd_sig_usr2_handler
,
342 /* React on 'smbcontrol winbindd reload-config' in the same way as on SIGHUP*/
343 static void msg_reload_services(struct messaging_context
*msg
,
346 struct server_id server_id
,
349 /* Flush various caches */
351 reload_services_file((const char *) private_data
);
354 /* React on 'smbcontrol winbindd shutdown' in the same way as on SIGTERM*/
355 static void msg_shutdown(struct messaging_context
*msg
,
358 struct server_id server_id
,
361 /* only the parent waits for this message */
362 DEBUG(0,("Got shutdown message\n"));
367 static void winbind_msg_validate_cache(struct messaging_context
*msg_ctx
,
370 struct server_id server_id
,
375 struct sigaction act
;
376 struct sigaction oldact
;
378 DEBUG(10, ("winbindd_msg_validate_cache: got validate-cache "
382 * call the validation code from a child:
383 * so we don't block the main winbindd and the validation
384 * code can safely use fork/waitpid...
387 child_pid
= sys_fork();
389 if (child_pid
== -1) {
390 DEBUG(1, ("winbind_msg_validate_cache: Could not fork: %s\n",
395 if (child_pid
!= 0) {
397 DEBUG(5, ("winbind_msg_validate_cache: child created with "
398 "pid %d.\n", (int)child_pid
));
404 /* install default SIGCHLD handler: validation code uses fork/waitpid */
406 act
.sa_handler
= SIG_DFL
;
408 /* We *want* SIGALRM to interrupt a system call. */
409 act
.sa_flags
= SA_RESTART
;
411 sigemptyset(&act
.sa_mask
);
412 sigaddset(&act
.sa_mask
,SIGCHLD
);
413 sigaction(SIGCHLD
,&act
,&oldact
);
415 ret
= (uint8
)winbindd_validate_cache_nobackup();
416 DEBUG(10, ("winbindd_msg_validata_cache: got return value %d\n", ret
));
417 messaging_send_buf(msg_ctx
, server_id
, MSG_WINBIND_VALIDATE_CACHE
, &ret
,
422 static struct winbindd_dispatch_table
{
423 enum winbindd_cmd cmd
;
424 void (*fn
)(struct winbindd_cli_state
*state
);
425 const char *winbindd_cmd_name
;
426 } dispatch_table
[] = {
430 { WINBINDD_GETPWNAM
, winbindd_getpwnam
, "GETPWNAM" },
431 { WINBINDD_GETPWUID
, winbindd_getpwuid
, "GETPWUID" },
432 { WINBINDD_GETPWSID
, winbindd_getpwsid
, "GETPWSID" },
434 { WINBINDD_SETPWENT
, winbindd_setpwent
, "SETPWENT" },
435 { WINBINDD_ENDPWENT
, winbindd_endpwent
, "ENDPWENT" },
436 { WINBINDD_GETPWENT
, winbindd_getpwent
, "GETPWENT" },
438 { WINBINDD_GETGROUPS
, winbindd_getgroups
, "GETGROUPS" },
439 { WINBINDD_GETUSERSIDS
, winbindd_getusersids
, "GETUSERSIDS" },
440 { WINBINDD_GETUSERDOMGROUPS
, winbindd_getuserdomgroups
,
441 "GETUSERDOMGROUPS" },
442 { WINBINDD_GETSIDALIASES
, winbindd_getsidaliases
,
443 "LOOKUPUSERALIASES" },
445 /* Group functions */
447 { WINBINDD_GETGRNAM
, winbindd_getgrnam
, "GETGRNAM" },
448 { WINBINDD_GETGRGID
, winbindd_getgrgid
, "GETGRGID" },
449 { WINBINDD_SETGRENT
, winbindd_setgrent
, "SETGRENT" },
450 { WINBINDD_ENDGRENT
, winbindd_endgrent
, "ENDGRENT" },
451 { WINBINDD_GETGRENT
, winbindd_getgrent
, "GETGRENT" },
452 { WINBINDD_GETGRLST
, winbindd_getgrent
, "GETGRLST" },
454 /* PAM auth functions */
456 { WINBINDD_PAM_AUTH
, winbindd_pam_auth
, "PAM_AUTH" },
457 { WINBINDD_PAM_AUTH_CRAP
, winbindd_pam_auth_crap
, "AUTH_CRAP" },
458 { WINBINDD_PAM_CHAUTHTOK
, winbindd_pam_chauthtok
, "CHAUTHTOK" },
459 { WINBINDD_PAM_LOGOFF
, winbindd_pam_logoff
, "PAM_LOGOFF" },
460 { WINBINDD_PAM_CHNG_PSWD_AUTH_CRAP
, winbindd_pam_chng_pswd_auth_crap
, "CHNG_PSWD_AUTH_CRAP" },
462 /* Enumeration functions */
464 { WINBINDD_LIST_USERS
, winbindd_list_users
, "LIST_USERS" },
465 { WINBINDD_LIST_GROUPS
, winbindd_list_groups
, "LIST_GROUPS" },
466 { WINBINDD_LIST_TRUSTDOM
, winbindd_list_trusted_domains
,
468 { WINBINDD_SHOW_SEQUENCE
, winbindd_show_sequence
, "SHOW_SEQUENCE" },
470 /* SID related functions */
472 { WINBINDD_LOOKUPRIDS
, winbindd_lookuprids
, "LOOKUPRIDS" },
474 /* Lookup related functions */
476 { WINBINDD_SID_TO_UID
, winbindd_sid_to_uid
, "SID_TO_UID" },
477 { WINBINDD_SID_TO_GID
, winbindd_sid_to_gid
, "SID_TO_GID" },
478 { WINBINDD_UID_TO_SID
, winbindd_uid_to_sid
, "UID_TO_SID" },
479 { WINBINDD_GID_TO_SID
, winbindd_gid_to_sid
, "GID_TO_SID" },
480 { WINBINDD_ALLOCATE_UID
, winbindd_allocate_uid
, "ALLOCATE_UID" },
481 { WINBINDD_ALLOCATE_GID
, winbindd_allocate_gid
, "ALLOCATE_GID" },
482 { WINBINDD_SET_MAPPING
, winbindd_set_mapping
, "SET_MAPPING" },
483 { WINBINDD_REMOVE_MAPPING
, winbindd_remove_mapping
, "REMOVE_MAPPING" },
484 { WINBINDD_SET_HWM
, winbindd_set_hwm
, "SET_HWMS" },
488 { WINBINDD_CHECK_MACHACC
, winbindd_check_machine_acct
, "CHECK_MACHACC" },
489 { WINBINDD_INFO
, winbindd_info
, "INFO" },
490 { WINBINDD_INTERFACE_VERSION
, winbindd_interface_version
,
491 "INTERFACE_VERSION" },
492 { WINBINDD_DOMAIN_NAME
, winbindd_domain_name
, "DOMAIN_NAME" },
493 { WINBINDD_DOMAIN_INFO
, winbindd_domain_info
, "DOMAIN_INFO" },
494 { WINBINDD_NETBIOS_NAME
, winbindd_netbios_name
, "NETBIOS_NAME" },
495 { WINBINDD_PRIV_PIPE_DIR
, winbindd_priv_pipe_dir
,
496 "WINBINDD_PRIV_PIPE_DIR" },
497 { WINBINDD_GETDCNAME
, winbindd_getdcname
, "GETDCNAME" },
498 { WINBINDD_DSGETDCNAME
, winbindd_dsgetdcname
, "DSGETDCNAME" },
500 /* Credential cache access */
501 { WINBINDD_CCACHE_NTLMAUTH
, winbindd_ccache_ntlm_auth
, "NTLMAUTH" },
505 { WINBINDD_WINS_BYNAME
, winbindd_wins_byname
, "WINS_BYNAME" },
506 { WINBINDD_WINS_BYIP
, winbindd_wins_byip
, "WINS_BYIP" },
510 { WINBINDD_NUM_CMDS
, NULL
, "NONE" }
513 struct winbindd_async_dispatch_table
{
514 enum winbindd_cmd cmd
;
515 const char *cmd_name
;
516 struct tevent_req
*(*send_req
)(TALLOC_CTX
*mem_ctx
,
517 struct tevent_context
*ev
,
518 struct winbindd_request
*request
);
519 NTSTATUS (*recv_req
)(struct tevent_req
*req
,
520 struct winbindd_response
*presp
);
523 static struct winbindd_async_dispatch_table async_nonpriv_table
[] = {
524 { WINBINDD_PING
, "PING",
525 wb_ping_send
, wb_ping_recv
},
526 { WINBINDD_LOOKUPSID
, "LOOKUPSID",
527 winbindd_lookupsid_send
, winbindd_lookupsid_recv
},
528 { WINBINDD_LOOKUPNAME
, "LOOKUPNAME",
529 winbindd_lookupname_send
, winbindd_lookupname_recv
},
531 { 0, NULL
, NULL
, NULL
}
534 static void wb_request_done(struct tevent_req
*req
);
536 static void process_request(struct winbindd_cli_state
*state
)
538 struct winbindd_dispatch_table
*table
= dispatch_table
;
539 struct winbindd_async_dispatch_table
*atable
;
541 state
->mem_ctx
= talloc_init("winbind request");
542 if (state
->mem_ctx
== NULL
)
545 /* Remember who asked us. */
546 state
->pid
= state
->request
->pid
;
548 /* Process command */
550 for (atable
= async_nonpriv_table
; atable
->send_req
; atable
+= 1) {
551 if (state
->request
->cmd
== atable
->cmd
) {
556 if (atable
->send_req
!= NULL
) {
557 struct tevent_req
*req
;
559 DEBUG(10, ("process_request: Handling async request %s\n",
562 req
= atable
->send_req(state
->mem_ctx
, winbind_event_context(),
565 DEBUG(0, ("process_request: atable->send failed for "
566 "%s\n", atable
->cmd_name
));
567 request_error(state
);
570 tevent_req_set_callback(req
, wb_request_done
, state
);
571 state
->recv_fn
= atable
->recv_req
;
575 state
->response
= talloc_zero(state
->mem_ctx
,
576 struct winbindd_response
);
577 if (state
->response
== NULL
) {
578 DEBUG(10, ("talloc failed\n"));
579 remove_client(state
);
582 state
->response
->result
= WINBINDD_PENDING
;
583 state
->response
->length
= sizeof(struct winbindd_response
);
585 for (table
= dispatch_table
; table
->fn
; table
++) {
586 if (state
->request
->cmd
== table
->cmd
) {
587 DEBUG(10,("process_request: request fn %s\n",
588 table
->winbindd_cmd_name
));
595 DEBUG(10,("process_request: unknown request fn number %d\n",
596 (int)state
->request
->cmd
));
597 request_error(state
);
601 static void wb_request_done(struct tevent_req
*req
)
603 struct winbindd_cli_state
*state
= tevent_req_callback_data(
604 req
, struct winbindd_cli_state
);
607 state
->response
= talloc_zero(state
, struct winbindd_response
);
608 if (state
->response
== NULL
) {
609 remove_client(state
);
612 state
->response
->result
= WINBINDD_PENDING
;
613 state
->response
->length
= sizeof(struct winbindd_response
);
615 status
= state
->recv_fn(req
, state
->response
);
617 if (!NT_STATUS_IS_OK(status
)) {
618 DEBUG(10, ("returning %s\n", nt_errstr(status
)));
619 request_error(state
);
626 * This is the main event loop of winbind requests. It goes through a
627 * state-machine of 3 read/write requests, 4 if you have extra data to send.
629 * An idle winbind client has a read request of 4 bytes outstanding,
630 * finalizing function is request_len_recv, checking the length. request_recv
631 * then processes the packet. The processing function then at some point has
632 * to call request_finished which schedules sending the response.
635 static void request_finished(struct winbindd_cli_state
*state
);
637 static void winbind_client_request_read(struct tevent_req
*req
);
638 static void winbind_client_response_written(struct tevent_req
*req
);
640 static void request_finished(struct winbindd_cli_state
*state
)
642 struct tevent_req
*req
;
644 TALLOC_FREE(state
->request
);
646 req
= wb_resp_write_send(state
, winbind_event_context(),
647 state
->out_queue
, state
->sock
,
650 remove_client(state
);
653 tevent_req_set_callback(req
, winbind_client_response_written
, state
);
656 static void winbind_client_response_written(struct tevent_req
*req
)
658 struct winbindd_cli_state
*state
= tevent_req_callback_data(
659 req
, struct winbindd_cli_state
);
663 ret
= wb_resp_write_recv(req
, &err
);
666 DEBUG(2, ("Could not write response to client: %s\n",
668 remove_client(state
);
672 TALLOC_FREE(state
->mem_ctx
);
673 state
->response
= NULL
;
675 req
= wb_req_read_send(state
, winbind_event_context(), state
->sock
,
676 WINBINDD_MAX_EXTRA_DATA
);
678 remove_client(state
);
681 tevent_req_set_callback(req
, winbind_client_request_read
, state
);
684 void request_error(struct winbindd_cli_state
*state
)
686 SMB_ASSERT(state
->response
->result
== WINBINDD_PENDING
);
687 state
->response
->result
= WINBINDD_ERROR
;
688 request_finished(state
);
691 void request_ok(struct winbindd_cli_state
*state
)
693 SMB_ASSERT(state
->response
->result
== WINBINDD_PENDING
);
694 state
->response
->result
= WINBINDD_OK
;
695 request_finished(state
);
698 /* Process a new connection by adding it to the client connection list */
700 static void new_connection(int listen_sock
, bool privileged
)
702 struct sockaddr_un sunaddr
;
703 struct winbindd_cli_state
*state
;
704 struct tevent_req
*req
;
708 /* Accept connection */
710 len
= sizeof(sunaddr
);
713 sock
= accept(listen_sock
, (struct sockaddr
*)(void *)&sunaddr
,
715 } while (sock
== -1 && errno
== EINTR
);
720 DEBUG(6,("accepted socket %d\n", sock
));
722 /* Create new connection structure */
724 if ((state
= TALLOC_ZERO_P(NULL
, struct winbindd_cli_state
)) == NULL
) {
731 state
->out_queue
= tevent_queue_create(state
, "winbind client reply");
732 if (state
->out_queue
== NULL
) {
738 state
->last_access
= time(NULL
);
740 state
->privileged
= privileged
;
742 req
= wb_req_read_send(state
, winbind_event_context(), state
->sock
,
743 WINBINDD_MAX_EXTRA_DATA
);
749 tevent_req_set_callback(req
, winbind_client_request_read
, state
);
751 /* Add to connection list */
753 winbindd_add_client(state
);
756 static void winbind_client_request_read(struct tevent_req
*req
)
758 struct winbindd_cli_state
*state
= tevent_req_callback_data(
759 req
, struct winbindd_cli_state
);
763 ret
= wb_req_read_recv(req
, state
, &state
->request
, &err
);
766 DEBUG(2, ("Could not read client request: %s\n",
768 remove_client(state
);
771 process_request(state
);
774 /* Remove a client connection from client connection list */
776 static void remove_client(struct winbindd_cli_state
*state
)
781 /* It's a dead client - hold a funeral */
787 /* tell client, we are closing ... */
788 nwritten
= write(state
->sock
, &c
, sizeof(c
));
789 if (nwritten
== -1) {
791 * ignore EPIPE error here, because the other end might
792 * have already closed the socket.
794 if (errno
!= EPIPE
) {
795 DEBUG(2, ("final write to client failed: %s\n",
804 /* Free any getent state */
806 free_getent_state(state
->getpwent_state
);
807 free_getent_state(state
->getgrent_state
);
809 TALLOC_FREE(state
->mem_ctx
);
811 /* Remove from list and free */
813 winbindd_remove_client(state
);
817 /* Shutdown client connection which has been idle for the longest time */
819 static bool remove_idle_client(void)
821 struct winbindd_cli_state
*state
, *remove_state
= NULL
;
822 time_t last_access
= 0;
825 for (state
= winbindd_client_list(); state
; state
= state
->next
) {
826 if (state
->response
== NULL
&&
827 !state
->getpwent_state
&& !state
->getgrent_state
) {
829 if (!last_access
|| state
->last_access
< last_access
) {
830 last_access
= state
->last_access
;
831 remove_state
= state
;
837 DEBUG(5,("Found %d idle client connections, shutting down sock %d, pid %u\n",
838 nidle
, remove_state
->sock
, (unsigned int)remove_state
->pid
));
839 remove_client(remove_state
);
846 struct winbindd_listen_state
{
851 static void winbindd_listen_fde_handler(struct tevent_context
*ev
,
852 struct tevent_fd
*fde
,
856 struct winbindd_listen_state
*s
= talloc_get_type_abort(private_data
,
857 struct winbindd_listen_state
);
859 while (winbindd_num_clients() >
860 WINBINDD_MAX_SIMULTANEOUS_CLIENTS
- 1) {
861 DEBUG(5,("winbindd: Exceeding %d client "
862 "connections, removing idle "
864 WINBINDD_MAX_SIMULTANEOUS_CLIENTS
));
865 if (!remove_idle_client()) {
866 DEBUG(0,("winbindd: Exceeding %d "
867 "client connections, no idle "
868 "connection found\n",
869 WINBINDD_MAX_SIMULTANEOUS_CLIENTS
));
873 new_connection(s
->fd
, s
->privileged
);
876 static bool winbindd_setup_listeners(void)
878 struct winbindd_listen_state
*pub_state
= NULL
;
879 struct winbindd_listen_state
*priv_state
= NULL
;
880 struct tevent_fd
*fde
;
882 pub_state
= talloc(winbind_event_context(),
883 struct winbindd_listen_state
);
888 pub_state
->privileged
= false;
889 pub_state
->fd
= open_winbindd_socket();
890 if (pub_state
->fd
== -1) {
894 fde
= tevent_add_fd(winbind_event_context(), pub_state
, pub_state
->fd
,
895 TEVENT_FD_READ
, winbindd_listen_fde_handler
,
898 close(pub_state
->fd
);
901 tevent_fd_set_auto_close(fde
);
903 priv_state
= talloc(winbind_event_context(),
904 struct winbindd_listen_state
);
909 priv_state
->privileged
= true;
910 priv_state
->fd
= open_winbindd_priv_socket();
911 if (priv_state
->fd
== -1) {
915 fde
= tevent_add_fd(winbind_event_context(), priv_state
,
916 priv_state
->fd
, TEVENT_FD_READ
,
917 winbindd_listen_fde_handler
, priv_state
);
919 close(priv_state
->fd
);
922 tevent_fd_set_auto_close(fde
);
926 TALLOC_FREE(pub_state
);
927 TALLOC_FREE(priv_state
);
931 bool winbindd_use_idmap_cache(void)
936 bool winbindd_use_cache(void)
943 int main(int argc
, char **argv
, char **envp
)
945 static bool is_daemon
= False
;
946 static bool Fork
= True
;
947 static bool log_stdout
= False
;
948 static bool no_process_group
= False
;
952 OPT_NO_PROCESS_GROUP
,
955 struct poptOption long_options
[] = {
957 { "stdout", 'S', POPT_ARG_NONE
, NULL
, OPT_LOG_STDOUT
, "Log to stdout" },
958 { "foreground", 'F', POPT_ARG_NONE
, NULL
, OPT_FORK
, "Daemon in foreground mode" },
959 { "no-process-group", 0, POPT_ARG_NONE
, NULL
, OPT_NO_PROCESS_GROUP
, "Don't create a new process group" },
960 { "daemon", 'D', POPT_ARG_NONE
, NULL
, OPT_DAEMON
, "Become a daemon (default)" },
961 { "interactive", 'i', POPT_ARG_NONE
, NULL
, 'i', "Interactive mode" },
962 { "no-caching", 'n', POPT_ARG_NONE
, NULL
, 'n', "Disable caching" },
968 TALLOC_CTX
*frame
= talloc_stackframe();
969 struct tevent_timer
*te
;
971 /* glibc (?) likes to print "User defined signal 1" and exit if a
972 SIGUSR[12] is received before a handler is installed */
974 CatchSignal(SIGUSR1
, SIG_IGN
);
975 CatchSignal(SIGUSR2
, SIG_IGN
);
977 fault_setup((void (*)(void *))fault_quit
);
978 dump_core_setup("winbindd");
982 /* Initialise for running in non-root mode */
986 set_remote_machine_name("winbindd", False
);
988 /* Set environment variable so we don't recursively call ourselves.
989 This may also be useful interactively. */
991 if ( !winbind_off() ) {
992 DEBUG(0,("Failed to disable recusive winbindd calls. Exiting.\n"));
996 /* Initialise samba/rpc client stuff */
998 pc
= poptGetContext("winbindd", argc
, (const char **)argv
, long_options
, 0);
1000 while ((opt
= poptGetNextOpt(pc
)) != -1) {
1002 /* Don't become a daemon */
1014 case OPT_NO_PROCESS_GROUP
:
1015 no_process_group
= true;
1017 case OPT_LOG_STDOUT
:
1024 d_fprintf(stderr
, "\nInvalid option %s: %s\n\n",
1025 poptBadOption(pc
, 0), poptStrerror(opt
));
1026 poptPrintUsage(pc
, stderr
, 0);
1031 if (is_daemon
&& interactive
) {
1032 d_fprintf(stderr
,"\nERROR: "
1033 "Option -i|--interactive is not allowed together with -D|--daemon\n\n");
1034 poptPrintUsage(pc
, stderr
, 0);
1038 if (log_stdout
&& Fork
) {
1039 d_fprintf(stderr
, "\nERROR: "
1040 "Can't log to stdout (-S) unless daemon is in foreground +(-F) or interactive (-i)\n\n");
1041 poptPrintUsage(pc
, stderr
, 0);
1045 poptFreeContext(pc
);
1047 if (!override_logfile
) {
1049 if (asprintf(&lfile
,"%s/log.winbindd",
1050 get_dyn_LOGFILEBASE()) > 0) {
1051 lp_set_logfile(lfile
);
1055 setup_logging("winbindd", log_stdout
);
1058 DEBUG(0,("winbindd version %s started.\n", samba_version_string()));
1059 DEBUGADD(0,("%s\n", COPYRIGHT_STARTUP_MESSAGE
));
1061 if (!lp_load_initial_only(get_dyn_CONFIGFILE())) {
1062 DEBUG(0, ("error opening config file\n"));
1066 /* Initialise messaging system */
1068 if (winbind_messaging_context() == NULL
) {
1072 if (!reload_services_file(NULL
)) {
1073 DEBUG(0, ("error opening config file\n"));
1077 if (!directory_exist(lp_lockdir())) {
1078 mkdir(lp_lockdir(), 0755);
1088 if (!secrets_init()) {
1090 DEBUG(0,("Could not initialize domain trust account secrets. Giving up\n"));
1094 /* Enable netbios namecache */
1098 /* Unblock all signals we are interested in as they may have been
1099 blocked by the parent process. */
1101 BlockSignals(False
, SIGINT
);
1102 BlockSignals(False
, SIGQUIT
);
1103 BlockSignals(False
, SIGTERM
);
1104 BlockSignals(False
, SIGUSR1
);
1105 BlockSignals(False
, SIGUSR2
);
1106 BlockSignals(False
, SIGHUP
);
1107 BlockSignals(False
, SIGCHLD
);
1110 become_daemon(Fork
, no_process_group
);
1112 pidfile_create("winbindd");
1116 * If we're interactive we want to set our own process group for
1117 * signal management.
1119 if (interactive
&& !no_process_group
)
1120 setpgid( (pid_t
)0, (pid_t
)0);
1125 /* Don't use winbindd_reinit_after_fork here as
1126 * we're just starting up and haven't created any
1127 * winbindd-specific resources we must free yet. JRA.
1130 if (!NT_STATUS_IS_OK(reinit_after_fork(winbind_messaging_context(),
1131 winbind_event_context(),
1133 DEBUG(0,("reinit_after_fork() failed\n"));
1137 /* Setup signal handlers */
1139 if (!winbindd_setup_sig_term_handler(true))
1141 if (!winbindd_setup_sig_hup_handler(NULL
))
1143 if (!winbindd_setup_sig_chld_handler())
1145 if (!winbindd_setup_sig_usr2_handler())
1148 CatchSignal(SIGPIPE
, SIG_IGN
); /* Ignore sigpipe */
1151 * Ensure all cache and idmap caches are consistent
1152 * and initialized before we startup.
1154 if (!winbindd_cache_validate_and_initialize()) {
1158 /* get broadcast messages */
1159 claim_connection(NULL
,"",FLAG_MSG_GENERAL
|FLAG_MSG_DBWRAP
);
1161 /* React on 'smbcontrol winbindd reload-config' in the same way
1162 as to SIGHUP signal */
1163 messaging_register(winbind_messaging_context(), NULL
,
1164 MSG_SMB_CONF_UPDATED
, msg_reload_services
);
1165 messaging_register(winbind_messaging_context(), NULL
,
1166 MSG_SHUTDOWN
, msg_shutdown
);
1168 /* Handle online/offline messages. */
1169 messaging_register(winbind_messaging_context(), NULL
,
1170 MSG_WINBIND_OFFLINE
, winbind_msg_offline
);
1171 messaging_register(winbind_messaging_context(), NULL
,
1172 MSG_WINBIND_ONLINE
, winbind_msg_online
);
1173 messaging_register(winbind_messaging_context(), NULL
,
1174 MSG_WINBIND_ONLINESTATUS
, winbind_msg_onlinestatus
);
1176 messaging_register(winbind_messaging_context(), NULL
,
1177 MSG_DUMP_EVENT_LIST
, winbind_msg_dump_event_list
);
1179 messaging_register(winbind_messaging_context(), NULL
,
1180 MSG_WINBIND_VALIDATE_CACHE
,
1181 winbind_msg_validate_cache
);
1183 messaging_register(winbind_messaging_context(), NULL
,
1184 MSG_WINBIND_DUMP_DOMAIN_LIST
,
1185 winbind_msg_dump_domain_list
);
1187 /* Register handler for MSG_DEBUG. */
1188 messaging_register(winbind_messaging_context(), NULL
,
1192 netsamlogon_cache_init(); /* Non-critical */
1194 /* clear the cached list of trusted domains */
1198 if (!init_domain_list()) {
1199 DEBUG(0,("unable to initialize domain list\n"));
1204 init_locator_child();
1206 smb_nscd_flush_user_cache();
1207 smb_nscd_flush_group_cache();
1209 /* setup listen sockets */
1211 if (!winbindd_setup_listeners()) {
1212 DEBUG(0,("winbindd_setup_listeners() failed\n"));
1216 te
= tevent_add_timer(winbind_event_context(), NULL
, timeval_zero(),
1217 rescan_trusted_domains
, NULL
);
1219 DEBUG(0, ("Could not trigger rescan_trusted_domains()\n"));
1224 /* Loop waiting for requests */
1226 frame
= talloc_stackframe();
1228 if (tevent_loop_once(winbind_event_context()) == -1) {
1229 DEBUG(1, ("tevent_loop_once() failed: %s\n",