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
[] = {
428 /* PAM auth functions */
430 { WINBINDD_PAM_AUTH
, winbindd_pam_auth
, "PAM_AUTH" },
431 { WINBINDD_PAM_AUTH_CRAP
, winbindd_pam_auth_crap
, "AUTH_CRAP" },
432 { WINBINDD_PAM_CHAUTHTOK
, winbindd_pam_chauthtok
, "CHAUTHTOK" },
433 { WINBINDD_PAM_LOGOFF
, winbindd_pam_logoff
, "PAM_LOGOFF" },
434 { WINBINDD_PAM_CHNG_PSWD_AUTH_CRAP
, winbindd_pam_chng_pswd_auth_crap
, "CHNG_PSWD_AUTH_CRAP" },
436 /* Enumeration functions */
438 { WINBINDD_LIST_TRUSTDOM
, winbindd_list_trusted_domains
,
443 { WINBINDD_INFO
, winbindd_info
, "INFO" },
444 { WINBINDD_INTERFACE_VERSION
, winbindd_interface_version
,
445 "INTERFACE_VERSION" },
446 { WINBINDD_DOMAIN_NAME
, winbindd_domain_name
, "DOMAIN_NAME" },
447 { WINBINDD_DOMAIN_INFO
, winbindd_domain_info
, "DOMAIN_INFO" },
448 { WINBINDD_NETBIOS_NAME
, winbindd_netbios_name
, "NETBIOS_NAME" },
449 { WINBINDD_PRIV_PIPE_DIR
, winbindd_priv_pipe_dir
,
450 "WINBINDD_PRIV_PIPE_DIR" },
452 /* Credential cache access */
453 { WINBINDD_CCACHE_NTLMAUTH
, winbindd_ccache_ntlm_auth
, "NTLMAUTH" },
454 { WINBINDD_CCACHE_SAVE
, winbindd_ccache_save
, "CCACHE_SAVE" },
458 { WINBINDD_WINS_BYNAME
, winbindd_wins_byname
, "WINS_BYNAME" },
459 { WINBINDD_WINS_BYIP
, winbindd_wins_byip
, "WINS_BYIP" },
463 { WINBINDD_NUM_CMDS
, NULL
, "NONE" }
466 struct winbindd_async_dispatch_table
{
467 enum winbindd_cmd cmd
;
468 const char *cmd_name
;
469 struct tevent_req
*(*send_req
)(TALLOC_CTX
*mem_ctx
,
470 struct tevent_context
*ev
,
471 struct winbindd_cli_state
*cli
,
472 struct winbindd_request
*request
);
473 NTSTATUS (*recv_req
)(struct tevent_req
*req
,
474 struct winbindd_response
*presp
);
477 static struct winbindd_async_dispatch_table async_nonpriv_table
[] = {
478 { WINBINDD_PING
, "PING",
479 wb_ping_send
, wb_ping_recv
},
480 { WINBINDD_LOOKUPSID
, "LOOKUPSID",
481 winbindd_lookupsid_send
, winbindd_lookupsid_recv
},
482 { WINBINDD_LOOKUPNAME
, "LOOKUPNAME",
483 winbindd_lookupname_send
, winbindd_lookupname_recv
},
484 { WINBINDD_SID_TO_UID
, "SID_TO_UID",
485 winbindd_sid_to_uid_send
, winbindd_sid_to_uid_recv
},
486 { WINBINDD_SID_TO_GID
, "SID_TO_GID",
487 winbindd_sid_to_gid_send
, winbindd_sid_to_gid_recv
},
488 { WINBINDD_UID_TO_SID
, "UID_TO_SID",
489 winbindd_uid_to_sid_send
, winbindd_uid_to_sid_recv
},
490 { WINBINDD_GID_TO_SID
, "GID_TO_SID",
491 winbindd_gid_to_sid_send
, winbindd_gid_to_sid_recv
},
492 { WINBINDD_GETPWSID
, "GETPWSID",
493 winbindd_getpwsid_send
, winbindd_getpwsid_recv
},
494 { WINBINDD_GETPWNAM
, "GETPWNAM",
495 winbindd_getpwnam_send
, winbindd_getpwnam_recv
},
496 { WINBINDD_GETPWUID
, "GETPWUID",
497 winbindd_getpwuid_send
, winbindd_getpwuid_recv
},
498 { WINBINDD_GETSIDALIASES
, "GETSIDALIASES",
499 winbindd_getsidaliases_send
, winbindd_getsidaliases_recv
},
500 { WINBINDD_GETUSERDOMGROUPS
, "GETUSERDOMGROUPS",
501 winbindd_getuserdomgroups_send
, winbindd_getuserdomgroups_recv
},
502 { WINBINDD_GETGROUPS
, "GETGROUPS",
503 winbindd_getgroups_send
, winbindd_getgroups_recv
},
504 { WINBINDD_SHOW_SEQUENCE
, "SHOW_SEQUENCE",
505 winbindd_show_sequence_send
, winbindd_show_sequence_recv
},
506 { WINBINDD_GETGRGID
, "GETGRGID",
507 winbindd_getgrgid_send
, winbindd_getgrgid_recv
},
508 { WINBINDD_GETGRNAM
, "GETGRNAM",
509 winbindd_getgrnam_send
, winbindd_getgrnam_recv
},
510 { WINBINDD_GETUSERSIDS
, "GETUSERSIDS",
511 winbindd_getusersids_send
, winbindd_getusersids_recv
},
512 { WINBINDD_LOOKUPRIDS
, "LOOKUPRIDS",
513 winbindd_lookuprids_send
, winbindd_lookuprids_recv
},
514 { WINBINDD_SETPWENT
, "SETPWENT",
515 winbindd_setpwent_send
, winbindd_setpwent_recv
},
516 { WINBINDD_GETPWENT
, "GETPWENT",
517 winbindd_getpwent_send
, winbindd_getpwent_recv
},
518 { WINBINDD_ENDPWENT
, "ENDPWENT",
519 winbindd_endpwent_send
, winbindd_endpwent_recv
},
520 { WINBINDD_DSGETDCNAME
, "DSGETDCNAME",
521 winbindd_dsgetdcname_send
, winbindd_dsgetdcname_recv
},
522 { WINBINDD_GETDCNAME
, "GETDCNAME",
523 winbindd_getdcname_send
, winbindd_getdcname_recv
},
524 { WINBINDD_SETGRENT
, "SETGRENT",
525 winbindd_setgrent_send
, winbindd_setgrent_recv
},
526 { WINBINDD_GETGRENT
, "GETGRENT",
527 winbindd_getgrent_send
, winbindd_getgrent_recv
},
528 { WINBINDD_ENDGRENT
, "ENDGRENT",
529 winbindd_endgrent_send
, winbindd_endgrent_recv
},
530 { WINBINDD_LIST_USERS
, "LIST_USERS",
531 winbindd_list_users_send
, winbindd_list_users_recv
},
532 { WINBINDD_LIST_GROUPS
, "LIST_GROUPS",
533 winbindd_list_groups_send
, winbindd_list_groups_recv
},
534 { WINBINDD_CHECK_MACHACC
, "CHECK_MACHACC",
535 winbindd_check_machine_acct_send
, winbindd_check_machine_acct_recv
},
536 { WINBINDD_PING_DC
, "PING_DC",
537 winbindd_ping_dc_send
, winbindd_ping_dc_recv
},
539 { 0, NULL
, NULL
, NULL
}
542 static struct winbindd_async_dispatch_table async_priv_table
[] = {
543 { WINBINDD_ALLOCATE_UID
, "ALLOCATE_UID",
544 winbindd_allocate_uid_send
, winbindd_allocate_uid_recv
},
545 { WINBINDD_ALLOCATE_GID
, "ALLOCATE_GID",
546 winbindd_allocate_gid_send
, winbindd_allocate_gid_recv
},
547 { WINBINDD_SET_MAPPING
, "SET_MAPPING",
548 winbindd_set_mapping_send
, winbindd_set_mapping_recv
},
549 { WINBINDD_REMOVE_MAPPING
, "SET_MAPPING",
550 winbindd_remove_mapping_send
, winbindd_remove_mapping_recv
},
551 { WINBINDD_SET_HWM
, "SET_HWM",
552 winbindd_set_hwm_send
, winbindd_set_hwm_recv
},
553 { WINBINDD_CHANGE_MACHACC
, "CHANGE_MACHACC",
554 winbindd_change_machine_acct_send
, winbindd_change_machine_acct_recv
},
556 { 0, NULL
, NULL
, NULL
}
559 static void wb_request_done(struct tevent_req
*req
);
561 static void process_request(struct winbindd_cli_state
*state
)
563 struct winbindd_dispatch_table
*table
= dispatch_table
;
564 struct winbindd_async_dispatch_table
*atable
;
566 state
->mem_ctx
= talloc_init("winbind request");
567 if (state
->mem_ctx
== NULL
)
570 /* Remember who asked us. */
571 state
->pid
= state
->request
->pid
;
573 /* Process command */
575 for (atable
= async_nonpriv_table
; atable
->send_req
; atable
+= 1) {
576 if (state
->request
->cmd
== atable
->cmd
) {
581 if ((atable
->send_req
== NULL
) && state
->privileged
) {
582 for (atable
= async_priv_table
; atable
->send_req
;
584 if (state
->request
->cmd
== atable
->cmd
) {
590 if (atable
->send_req
!= NULL
) {
591 struct tevent_req
*req
;
593 DEBUG(10, ("process_request: Handling async request %s\n",
596 req
= atable
->send_req(state
->mem_ctx
, winbind_event_context(),
597 state
, state
->request
);
599 DEBUG(0, ("process_request: atable->send failed for "
600 "%s\n", atable
->cmd_name
));
601 request_error(state
);
604 tevent_req_set_callback(req
, wb_request_done
, state
);
605 state
->recv_fn
= atable
->recv_req
;
609 state
->response
= talloc_zero(state
->mem_ctx
,
610 struct winbindd_response
);
611 if (state
->response
== NULL
) {
612 DEBUG(10, ("talloc failed\n"));
613 remove_client(state
);
616 state
->response
->result
= WINBINDD_PENDING
;
617 state
->response
->length
= sizeof(struct winbindd_response
);
619 for (table
= dispatch_table
; table
->fn
; table
++) {
620 if (state
->request
->cmd
== table
->cmd
) {
621 DEBUG(10,("process_request: request fn %s\n",
622 table
->winbindd_cmd_name
));
629 DEBUG(10,("process_request: unknown request fn number %d\n",
630 (int)state
->request
->cmd
));
631 request_error(state
);
635 static void wb_request_done(struct tevent_req
*req
)
637 struct winbindd_cli_state
*state
= tevent_req_callback_data(
638 req
, struct winbindd_cli_state
);
641 state
->response
= talloc_zero(state
, struct winbindd_response
);
642 if (state
->response
== NULL
) {
643 remove_client(state
);
646 state
->response
->result
= WINBINDD_PENDING
;
647 state
->response
->length
= sizeof(struct winbindd_response
);
649 status
= state
->recv_fn(req
, state
->response
);
651 if (!NT_STATUS_IS_OK(status
)) {
652 DEBUG(10, ("returning %s\n", nt_errstr(status
)));
653 request_error(state
);
660 * This is the main event loop of winbind requests. It goes through a
661 * state-machine of 3 read/write requests, 4 if you have extra data to send.
663 * An idle winbind client has a read request of 4 bytes outstanding,
664 * finalizing function is request_len_recv, checking the length. request_recv
665 * then processes the packet. The processing function then at some point has
666 * to call request_finished which schedules sending the response.
669 static void request_finished(struct winbindd_cli_state
*state
);
671 static void winbind_client_request_read(struct tevent_req
*req
);
672 static void winbind_client_response_written(struct tevent_req
*req
);
674 static void request_finished(struct winbindd_cli_state
*state
)
676 struct tevent_req
*req
;
678 TALLOC_FREE(state
->request
);
680 req
= wb_resp_write_send(state
, winbind_event_context(),
681 state
->out_queue
, state
->sock
,
684 remove_client(state
);
687 tevent_req_set_callback(req
, winbind_client_response_written
, state
);
690 static void winbind_client_response_written(struct tevent_req
*req
)
692 struct winbindd_cli_state
*state
= tevent_req_callback_data(
693 req
, struct winbindd_cli_state
);
697 ret
= wb_resp_write_recv(req
, &err
);
702 DEBUG(2, ("Could not write response to client: %s\n",
704 remove_client(state
);
708 TALLOC_FREE(state
->mem_ctx
);
709 state
->response
= NULL
;
711 req
= wb_req_read_send(state
, winbind_event_context(), state
->sock
,
712 WINBINDD_MAX_EXTRA_DATA
);
714 remove_client(state
);
717 tevent_req_set_callback(req
, winbind_client_request_read
, state
);
720 void request_error(struct winbindd_cli_state
*state
)
722 SMB_ASSERT(state
->response
->result
== WINBINDD_PENDING
);
723 state
->response
->result
= WINBINDD_ERROR
;
724 request_finished(state
);
727 void request_ok(struct winbindd_cli_state
*state
)
729 SMB_ASSERT(state
->response
->result
== WINBINDD_PENDING
);
730 state
->response
->result
= WINBINDD_OK
;
731 request_finished(state
);
734 /* Process a new connection by adding it to the client connection list */
736 static void new_connection(int listen_sock
, bool privileged
)
738 struct sockaddr_un sunaddr
;
739 struct winbindd_cli_state
*state
;
740 struct tevent_req
*req
;
744 /* Accept connection */
746 len
= sizeof(sunaddr
);
749 sock
= accept(listen_sock
, (struct sockaddr
*)(void *)&sunaddr
,
751 } while (sock
== -1 && errno
== EINTR
);
756 DEBUG(6,("accepted socket %d\n", sock
));
758 /* Create new connection structure */
760 if ((state
= TALLOC_ZERO_P(NULL
, struct winbindd_cli_state
)) == NULL
) {
767 state
->out_queue
= tevent_queue_create(state
, "winbind client reply");
768 if (state
->out_queue
== NULL
) {
774 state
->last_access
= time(NULL
);
776 state
->privileged
= privileged
;
778 req
= wb_req_read_send(state
, winbind_event_context(), state
->sock
,
779 WINBINDD_MAX_EXTRA_DATA
);
785 tevent_req_set_callback(req
, winbind_client_request_read
, state
);
787 /* Add to connection list */
789 winbindd_add_client(state
);
792 static void winbind_client_request_read(struct tevent_req
*req
)
794 struct winbindd_cli_state
*state
= tevent_req_callback_data(
795 req
, struct winbindd_cli_state
);
799 ret
= wb_req_read_recv(req
, state
, &state
->request
, &err
);
803 DEBUG(6, ("closing socket %d, client exited\n",
806 DEBUG(2, ("Could not read client request from fd %d: "
807 "%s\n", state
->sock
, strerror(err
)));
811 remove_client(state
);
814 process_request(state
);
817 /* Remove a client connection from client connection list */
819 static void remove_client(struct winbindd_cli_state
*state
)
824 /* It's a dead client - hold a funeral */
830 if (state
->sock
!= -1) {
831 /* tell client, we are closing ... */
832 nwritten
= write(state
->sock
, &c
, sizeof(c
));
833 if (nwritten
== -1) {
834 DEBUG(2, ("final write to client failed: %s\n",
844 TALLOC_FREE(state
->mem_ctx
);
846 /* Remove from list and free */
848 winbindd_remove_client(state
);
852 /* Shutdown client connection which has been idle for the longest time */
854 static bool remove_idle_client(void)
856 struct winbindd_cli_state
*state
, *remove_state
= NULL
;
857 time_t last_access
= 0;
860 for (state
= winbindd_client_list(); state
; state
= state
->next
) {
861 if (state
->response
== NULL
&&
862 !state
->pwent_state
&& !state
->grent_state
) {
864 if (!last_access
|| state
->last_access
< last_access
) {
865 last_access
= state
->last_access
;
866 remove_state
= state
;
872 DEBUG(5,("Found %d idle client connections, shutting down sock %d, pid %u\n",
873 nidle
, remove_state
->sock
, (unsigned int)remove_state
->pid
));
874 remove_client(remove_state
);
881 struct winbindd_listen_state
{
886 static void winbindd_listen_fde_handler(struct tevent_context
*ev
,
887 struct tevent_fd
*fde
,
891 struct winbindd_listen_state
*s
= talloc_get_type_abort(private_data
,
892 struct winbindd_listen_state
);
894 while (winbindd_num_clients() >
895 WINBINDD_MAX_SIMULTANEOUS_CLIENTS
- 1) {
896 DEBUG(5,("winbindd: Exceeding %d client "
897 "connections, removing idle "
899 WINBINDD_MAX_SIMULTANEOUS_CLIENTS
));
900 if (!remove_idle_client()) {
901 DEBUG(0,("winbindd: Exceeding %d "
902 "client connections, no idle "
903 "connection found\n",
904 WINBINDD_MAX_SIMULTANEOUS_CLIENTS
));
908 new_connection(s
->fd
, s
->privileged
);
911 static bool winbindd_setup_listeners(void)
913 struct winbindd_listen_state
*pub_state
= NULL
;
914 struct winbindd_listen_state
*priv_state
= NULL
;
915 struct tevent_fd
*fde
;
917 pub_state
= talloc(winbind_event_context(),
918 struct winbindd_listen_state
);
923 pub_state
->privileged
= false;
924 pub_state
->fd
= open_winbindd_socket();
925 if (pub_state
->fd
== -1) {
929 fde
= tevent_add_fd(winbind_event_context(), pub_state
, pub_state
->fd
,
930 TEVENT_FD_READ
, winbindd_listen_fde_handler
,
933 close(pub_state
->fd
);
936 tevent_fd_set_auto_close(fde
);
938 priv_state
= talloc(winbind_event_context(),
939 struct winbindd_listen_state
);
944 priv_state
->privileged
= true;
945 priv_state
->fd
= open_winbindd_priv_socket();
946 if (priv_state
->fd
== -1) {
950 fde
= tevent_add_fd(winbind_event_context(), priv_state
,
951 priv_state
->fd
, TEVENT_FD_READ
,
952 winbindd_listen_fde_handler
, priv_state
);
954 close(priv_state
->fd
);
957 tevent_fd_set_auto_close(fde
);
961 TALLOC_FREE(pub_state
);
962 TALLOC_FREE(priv_state
);
966 bool winbindd_use_idmap_cache(void)
971 bool winbindd_use_cache(void)
978 int main(int argc
, char **argv
, char **envp
)
980 static bool is_daemon
= False
;
981 static bool Fork
= True
;
982 static bool log_stdout
= False
;
983 static bool no_process_group
= False
;
987 OPT_NO_PROCESS_GROUP
,
990 struct poptOption long_options
[] = {
992 { "stdout", 'S', POPT_ARG_NONE
, NULL
, OPT_LOG_STDOUT
, "Log to stdout" },
993 { "foreground", 'F', POPT_ARG_NONE
, NULL
, OPT_FORK
, "Daemon in foreground mode" },
994 { "no-process-group", 0, POPT_ARG_NONE
, NULL
, OPT_NO_PROCESS_GROUP
, "Don't create a new process group" },
995 { "daemon", 'D', POPT_ARG_NONE
, NULL
, OPT_DAEMON
, "Become a daemon (default)" },
996 { "interactive", 'i', POPT_ARG_NONE
, NULL
, 'i', "Interactive mode" },
997 { "no-caching", 'n', POPT_ARG_NONE
, NULL
, 'n', "Disable caching" },
1003 TALLOC_CTX
*frame
= talloc_stackframe();
1004 struct tevent_timer
*te
;
1006 /* glibc (?) likes to print "User defined signal 1" and exit if a
1007 SIGUSR[12] is received before a handler is installed */
1009 CatchSignal(SIGUSR1
, SIG_IGN
);
1010 CatchSignal(SIGUSR2
, SIG_IGN
);
1012 fault_setup((void (*)(void *))fault_quit
);
1013 dump_core_setup("winbindd");
1017 /* Initialise for running in non-root mode */
1021 set_remote_machine_name("winbindd", False
);
1023 /* Set environment variable so we don't recursively call ourselves.
1024 This may also be useful interactively. */
1026 if ( !winbind_off() ) {
1027 DEBUG(0,("Failed to disable recusive winbindd calls. Exiting.\n"));
1031 /* Initialise samba/rpc client stuff */
1033 pc
= poptGetContext("winbindd", argc
, (const char **)argv
, long_options
, 0);
1035 while ((opt
= poptGetNextOpt(pc
)) != -1) {
1037 /* Don't become a daemon */
1049 case OPT_NO_PROCESS_GROUP
:
1050 no_process_group
= true;
1052 case OPT_LOG_STDOUT
:
1059 d_fprintf(stderr
, "\nInvalid option %s: %s\n\n",
1060 poptBadOption(pc
, 0), poptStrerror(opt
));
1061 poptPrintUsage(pc
, stderr
, 0);
1066 if (is_daemon
&& interactive
) {
1067 d_fprintf(stderr
,"\nERROR: "
1068 "Option -i|--interactive is not allowed together with -D|--daemon\n\n");
1069 poptPrintUsage(pc
, stderr
, 0);
1073 if (log_stdout
&& Fork
) {
1074 d_fprintf(stderr
, "\nERROR: "
1075 "Can't log to stdout (-S) unless daemon is in foreground +(-F) or interactive (-i)\n\n");
1076 poptPrintUsage(pc
, stderr
, 0);
1080 poptFreeContext(pc
);
1082 if (!override_logfile
) {
1084 if (asprintf(&lfile
,"%s/log.winbindd",
1085 get_dyn_LOGFILEBASE()) > 0) {
1086 lp_set_logfile(lfile
);
1090 setup_logging("winbindd", log_stdout
);
1093 DEBUG(0,("winbindd version %s started.\n", samba_version_string()));
1094 DEBUGADD(0,("%s\n", COPYRIGHT_STARTUP_MESSAGE
));
1096 if (!lp_load_initial_only(get_dyn_CONFIGFILE())) {
1097 DEBUG(0, ("error opening config file\n"));
1101 /* Initialise messaging system */
1103 if (winbind_messaging_context() == NULL
) {
1107 if (!reload_services_file(NULL
)) {
1108 DEBUG(0, ("error opening config file\n"));
1112 if (!directory_exist(lp_lockdir())) {
1113 mkdir(lp_lockdir(), 0755);
1123 if (!secrets_init()) {
1125 DEBUG(0,("Could not initialize domain trust account secrets. Giving up\n"));
1129 /* Enable netbios namecache */
1133 /* Unblock all signals we are interested in as they may have been
1134 blocked by the parent process. */
1136 BlockSignals(False
, SIGINT
);
1137 BlockSignals(False
, SIGQUIT
);
1138 BlockSignals(False
, SIGTERM
);
1139 BlockSignals(False
, SIGUSR1
);
1140 BlockSignals(False
, SIGUSR2
);
1141 BlockSignals(False
, SIGHUP
);
1142 BlockSignals(False
, SIGCHLD
);
1145 become_daemon(Fork
, no_process_group
);
1147 pidfile_create("winbindd");
1151 * If we're interactive we want to set our own process group for
1152 * signal management.
1154 if (interactive
&& !no_process_group
)
1155 setpgid( (pid_t
)0, (pid_t
)0);
1160 /* Don't use winbindd_reinit_after_fork here as
1161 * we're just starting up and haven't created any
1162 * winbindd-specific resources we must free yet. JRA.
1165 if (!NT_STATUS_IS_OK(reinit_after_fork(winbind_messaging_context(),
1166 winbind_event_context(),
1168 DEBUG(0,("reinit_after_fork() failed\n"));
1172 /* Setup signal handlers */
1174 if (!winbindd_setup_sig_term_handler(true))
1176 if (!winbindd_setup_sig_hup_handler(NULL
))
1178 if (!winbindd_setup_sig_chld_handler())
1180 if (!winbindd_setup_sig_usr2_handler())
1183 CatchSignal(SIGPIPE
, SIG_IGN
); /* Ignore sigpipe */
1186 * Ensure all cache and idmap caches are consistent
1187 * and initialized before we startup.
1189 if (!winbindd_cache_validate_and_initialize()) {
1193 /* get broadcast messages */
1194 claim_connection(NULL
,"",FLAG_MSG_GENERAL
|FLAG_MSG_DBWRAP
);
1196 /* React on 'smbcontrol winbindd reload-config' in the same way
1197 as to SIGHUP signal */
1198 messaging_register(winbind_messaging_context(), NULL
,
1199 MSG_SMB_CONF_UPDATED
, msg_reload_services
);
1200 messaging_register(winbind_messaging_context(), NULL
,
1201 MSG_SHUTDOWN
, msg_shutdown
);
1203 /* Handle online/offline messages. */
1204 messaging_register(winbind_messaging_context(), NULL
,
1205 MSG_WINBIND_OFFLINE
, winbind_msg_offline
);
1206 messaging_register(winbind_messaging_context(), NULL
,
1207 MSG_WINBIND_ONLINE
, winbind_msg_online
);
1208 messaging_register(winbind_messaging_context(), NULL
,
1209 MSG_WINBIND_ONLINESTATUS
, winbind_msg_onlinestatus
);
1211 messaging_register(winbind_messaging_context(), NULL
,
1212 MSG_DUMP_EVENT_LIST
, winbind_msg_dump_event_list
);
1214 messaging_register(winbind_messaging_context(), NULL
,
1215 MSG_WINBIND_VALIDATE_CACHE
,
1216 winbind_msg_validate_cache
);
1218 messaging_register(winbind_messaging_context(), NULL
,
1219 MSG_WINBIND_DUMP_DOMAIN_LIST
,
1220 winbind_msg_dump_domain_list
);
1222 /* Register handler for MSG_DEBUG. */
1223 messaging_register(winbind_messaging_context(), NULL
,
1227 netsamlogon_cache_init(); /* Non-critical */
1229 /* clear the cached list of trusted domains */
1233 if (!init_domain_list()) {
1234 DEBUG(0,("unable to initialize domain list\n"));
1239 init_locator_child();
1241 smb_nscd_flush_user_cache();
1242 smb_nscd_flush_group_cache();
1244 /* setup listen sockets */
1246 if (!winbindd_setup_listeners()) {
1247 DEBUG(0,("winbindd_setup_listeners() failed\n"));
1251 te
= tevent_add_timer(winbind_event_context(), NULL
, timeval_zero(),
1252 rescan_trusted_domains
, NULL
);
1254 DEBUG(0, ("Could not trigger rescan_trusted_domains()\n"));
1259 /* Loop waiting for requests */
1261 frame
= talloc_stackframe();
1263 if (tevent_loop_once(winbind_event_context()) == -1) {
1264 DEBUG(1, ("tevent_loop_once() failed: %s\n",