s3:winbindd: make use of samba_tevent_context_init()
[Samba/gebeck_regimport.git] / source3 / winbindd / winbindd.c
blobf5da15c259571b91127bda14b5c1ea3d58bca685
1 /*
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/>.
25 #include "includes.h"
26 #include "popt_common.h"
27 #include "winbindd.h"
28 #include "nsswitch/winbind_client.h"
29 #include "nsswitch/wb_reqtrans.h"
30 #include "ntdomain.h"
31 #include "../librpc/gen_ndr/srv_lsa.h"
32 #include "../librpc/gen_ndr/srv_samr.h"
33 #include "secrets.h"
34 #include "idmap.h"
35 #include "lib/addrchange.h"
36 #include "serverid.h"
37 #include "auth.h"
38 #include "messages.h"
39 #include "../lib/util/pidfile.h"
41 #undef DBGC_CLASS
42 #define DBGC_CLASS DBGC_WINBIND
44 static bool client_is_idle(struct winbindd_cli_state *state);
45 static void remove_client(struct winbindd_cli_state *state);
47 static bool opt_nocache = False;
48 static bool interactive = False;
50 extern bool override_logfile;
52 struct tevent_context *winbind_event_context(void)
54 static struct tevent_context *ev = NULL;
56 if (ev != NULL) {
57 return ev;
61 * Note we MUST use the NULL context here, not the autofree context,
62 * to avoid side effects in forked children exiting.
64 ev = samba_tevent_context_init(NULL);
65 if (ev == NULL) {
66 smb_panic("Could not init winbindd's messaging context.\n");
68 return ev;
71 struct messaging_context *winbind_messaging_context(void)
73 static struct messaging_context *msg = NULL;
75 if (msg != NULL) {
76 return msg;
80 * Note we MUST use the NULL context here, not the autofree context,
81 * to avoid side effects in forked children exiting.
83 msg = messaging_init(NULL, winbind_event_context());
84 if (msg == NULL) {
85 smb_panic("Could not init winbindd's messaging context.\n");
87 return msg;
90 /* Reload configuration */
92 static bool reload_services_file(const char *lfile)
94 bool ret;
96 if (lp_loaded()) {
97 char *fname = lp_configfile(talloc_tos());
99 if (file_exist(fname) && !strcsequal(fname,get_dyn_CONFIGFILE())) {
100 set_dyn_CONFIGFILE(fname);
102 TALLOC_FREE(fname);
105 /* if this is a child, restore the logfile to the special
106 name - <domain>, idmap, etc. */
107 if (lfile && *lfile) {
108 lp_set_logfile(lfile);
111 reopen_logs();
112 ret = lp_load_global(get_dyn_CONFIGFILE());
114 reopen_logs();
115 load_interfaces();
117 return(ret);
121 static void winbindd_status(void)
123 struct winbindd_cli_state *tmp;
125 DEBUG(0, ("winbindd status:\n"));
127 /* Print client state information */
129 DEBUG(0, ("\t%d clients currently active\n", winbindd_num_clients()));
131 if (DEBUGLEVEL >= 2 && winbindd_num_clients()) {
132 DEBUG(2, ("\tclient list:\n"));
133 for(tmp = winbindd_client_list(); tmp; tmp = tmp->next) {
134 DEBUGADD(2, ("\t\tpid %lu, sock %d (%s)\n",
135 (unsigned long)tmp->pid, tmp->sock,
136 client_is_idle(tmp) ? "idle" : "active"));
141 /* Flush client cache */
143 static void flush_caches(void)
145 /* We need to invalidate cached user list entries on a SIGHUP
146 otherwise cached access denied errors due to restrict anonymous
147 hang around until the sequence number changes. */
149 if (!wcache_invalidate_cache()) {
150 DEBUG(0, ("invalidating the cache failed; revalidate the cache\n"));
151 if (!winbindd_cache_validate_and_initialize()) {
152 exit(1);
157 static void flush_caches_noinit(void)
160 * We need to invalidate cached user list entries on a SIGHUP
161 * otherwise cached access denied errors due to restrict anonymous
162 * hang around until the sequence number changes.
163 * NB
164 * Skip uninitialized domains when flush cache.
165 * If domain is not initialized, it means it is never
166 * used or never become online. look, wcache_invalidate_cache()
167 * -> get_cache() -> init_dc_connection(). It causes a lot of traffic
168 * for unused domains and large traffic for primay domain's DC if there
169 * are many domains..
172 if (!wcache_invalidate_cache_noinit()) {
173 DEBUG(0, ("invalidating the cache failed; revalidate the cache\n"));
174 if (!winbindd_cache_validate_and_initialize()) {
175 exit(1);
180 /* Handle the signal by unlinking socket and exiting */
182 static void terminate(bool is_parent)
184 if (is_parent) {
185 /* When parent goes away we should
186 * remove the socket file. Not so
187 * when children terminate.
189 char *path = NULL;
191 if (asprintf(&path, "%s/%s",
192 get_winbind_pipe_dir(), WINBINDD_SOCKET_NAME) > 0) {
193 unlink(path);
194 SAFE_FREE(path);
198 idmap_close();
200 trustdom_cache_shutdown();
202 gencache_stabilize();
204 #if 0
205 if (interactive) {
206 TALLOC_CTX *mem_ctx = talloc_init("end_description");
207 char *description = talloc_describe_all(mem_ctx);
209 DEBUG(3, ("tallocs left:\n%s\n", description));
210 talloc_destroy(mem_ctx);
212 #endif
214 if (is_parent) {
215 serverid_deregister(procid_self());
216 pidfile_unlink(lp_piddir(), "winbindd");
219 exit(0);
222 static void winbindd_sig_term_handler(struct tevent_context *ev,
223 struct tevent_signal *se,
224 int signum,
225 int count,
226 void *siginfo,
227 void *private_data)
229 bool *is_parent = talloc_get_type_abort(private_data, bool);
231 DEBUG(0,("Got sig[%d] terminate (is_parent=%d)\n",
232 signum, (int)*is_parent));
233 terminate(*is_parent);
237 handle stdin becoming readable when we are in --foreground mode
239 static void winbindd_stdin_handler(struct tevent_context *ev,
240 struct tevent_fd *fde,
241 uint16_t flags,
242 void *private_data)
244 char c;
245 if (read(0, &c, 1) != 1) {
246 bool *is_parent = talloc_get_type_abort(private_data, bool);
248 /* we have reached EOF on stdin, which means the
249 parent has exited. Shutdown the server */
250 DEBUG(0,("EOF on stdin (is_parent=%d)\n",
251 (int)*is_parent));
252 terminate(*is_parent);
256 bool winbindd_setup_sig_term_handler(bool parent)
258 struct tevent_signal *se;
259 bool *is_parent;
261 is_parent = talloc(winbind_event_context(), bool);
262 if (!is_parent) {
263 return false;
266 *is_parent = parent;
268 se = tevent_add_signal(winbind_event_context(),
269 is_parent,
270 SIGTERM, 0,
271 winbindd_sig_term_handler,
272 is_parent);
273 if (!se) {
274 DEBUG(0,("failed to setup SIGTERM handler"));
275 talloc_free(is_parent);
276 return false;
279 se = tevent_add_signal(winbind_event_context(),
280 is_parent,
281 SIGINT, 0,
282 winbindd_sig_term_handler,
283 is_parent);
284 if (!se) {
285 DEBUG(0,("failed to setup SIGINT handler"));
286 talloc_free(is_parent);
287 return false;
290 se = tevent_add_signal(winbind_event_context(),
291 is_parent,
292 SIGQUIT, 0,
293 winbindd_sig_term_handler,
294 is_parent);
295 if (!se) {
296 DEBUG(0,("failed to setup SIGINT handler"));
297 talloc_free(is_parent);
298 return false;
301 return true;
304 bool winbindd_setup_stdin_handler(bool parent, bool foreground)
306 bool *is_parent;
308 if (foreground) {
309 is_parent = talloc(winbind_event_context(), bool);
310 if (!is_parent) {
311 return false;
314 *is_parent = parent;
316 /* if we are running in the foreground then look for
317 EOF on stdin, and exit if it happens. This allows
318 us to die if the parent process dies
320 tevent_add_fd(winbind_event_context(), is_parent, 0, TEVENT_FD_READ, winbindd_stdin_handler, is_parent);
323 return true;
326 static void winbindd_sig_hup_handler(struct tevent_context *ev,
327 struct tevent_signal *se,
328 int signum,
329 int count,
330 void *siginfo,
331 void *private_data)
333 const char *file = (const char *)private_data;
335 DEBUG(1,("Reloading services after SIGHUP\n"));
336 flush_caches_noinit();
337 reload_services_file(file);
340 bool winbindd_setup_sig_hup_handler(const char *lfile)
342 struct tevent_signal *se;
343 char *file = NULL;
345 if (lfile) {
346 file = talloc_strdup(winbind_event_context(),
347 lfile);
348 if (!file) {
349 return false;
353 se = tevent_add_signal(winbind_event_context(),
354 winbind_event_context(),
355 SIGHUP, 0,
356 winbindd_sig_hup_handler,
357 file);
358 if (!se) {
359 return false;
362 return true;
365 static void winbindd_sig_chld_handler(struct tevent_context *ev,
366 struct tevent_signal *se,
367 int signum,
368 int count,
369 void *siginfo,
370 void *private_data)
372 pid_t pid;
374 while ((pid = sys_waitpid(-1, NULL, WNOHANG)) > 0) {
375 winbind_child_died(pid);
379 static bool winbindd_setup_sig_chld_handler(void)
381 struct tevent_signal *se;
383 se = tevent_add_signal(winbind_event_context(),
384 winbind_event_context(),
385 SIGCHLD, 0,
386 winbindd_sig_chld_handler,
387 NULL);
388 if (!se) {
389 return false;
392 return true;
395 static void winbindd_sig_usr2_handler(struct tevent_context *ev,
396 struct tevent_signal *se,
397 int signum,
398 int count,
399 void *siginfo,
400 void *private_data)
402 winbindd_status();
405 static bool winbindd_setup_sig_usr2_handler(void)
407 struct tevent_signal *se;
409 se = tevent_add_signal(winbind_event_context(),
410 winbind_event_context(),
411 SIGUSR2, 0,
412 winbindd_sig_usr2_handler,
413 NULL);
414 if (!se) {
415 return false;
418 return true;
421 /* React on 'smbcontrol winbindd reload-config' in the same way as on SIGHUP*/
422 static void msg_reload_services(struct messaging_context *msg,
423 void *private_data,
424 uint32_t msg_type,
425 struct server_id server_id,
426 DATA_BLOB *data)
428 /* Flush various caches */
429 flush_caches();
430 reload_services_file((const char *) private_data);
433 /* React on 'smbcontrol winbindd shutdown' in the same way as on SIGTERM*/
434 static void msg_shutdown(struct messaging_context *msg,
435 void *private_data,
436 uint32_t msg_type,
437 struct server_id server_id,
438 DATA_BLOB *data)
440 /* only the parent waits for this message */
441 DEBUG(0,("Got shutdown message\n"));
442 terminate(true);
446 static void winbind_msg_validate_cache(struct messaging_context *msg_ctx,
447 void *private_data,
448 uint32_t msg_type,
449 struct server_id server_id,
450 DATA_BLOB *data)
452 uint8 ret;
453 pid_t child_pid;
454 NTSTATUS status;
456 DEBUG(10, ("winbindd_msg_validate_cache: got validate-cache "
457 "message.\n"));
460 * call the validation code from a child:
461 * so we don't block the main winbindd and the validation
462 * code can safely use fork/waitpid...
464 child_pid = fork();
466 if (child_pid == -1) {
467 DEBUG(1, ("winbind_msg_validate_cache: Could not fork: %s\n",
468 strerror(errno)));
469 return;
472 if (child_pid != 0) {
473 /* parent */
474 DEBUG(5, ("winbind_msg_validate_cache: child created with "
475 "pid %d.\n", (int)child_pid));
476 return;
479 /* child */
481 status = winbindd_reinit_after_fork(NULL, NULL);
482 if (!NT_STATUS_IS_OK(status)) {
483 DEBUG(1, ("winbindd_reinit_after_fork failed: %s\n",
484 nt_errstr(status)));
485 _exit(0);
488 /* install default SIGCHLD handler: validation code uses fork/waitpid */
489 CatchSignal(SIGCHLD, SIG_DFL);
491 ret = (uint8)winbindd_validate_cache_nobackup();
492 DEBUG(10, ("winbindd_msg_validata_cache: got return value %d\n", ret));
493 messaging_send_buf(msg_ctx, server_id, MSG_WINBIND_VALIDATE_CACHE, &ret,
494 (size_t)1);
495 _exit(0);
498 static struct winbindd_dispatch_table {
499 enum winbindd_cmd cmd;
500 void (*fn)(struct winbindd_cli_state *state);
501 const char *winbindd_cmd_name;
502 } dispatch_table[] = {
504 /* Enumeration functions */
506 { WINBINDD_LIST_TRUSTDOM, winbindd_list_trusted_domains,
507 "LIST_TRUSTDOM" },
509 /* Miscellaneous */
511 { WINBINDD_INFO, winbindd_info, "INFO" },
512 { WINBINDD_INTERFACE_VERSION, winbindd_interface_version,
513 "INTERFACE_VERSION" },
514 { WINBINDD_DOMAIN_NAME, winbindd_domain_name, "DOMAIN_NAME" },
515 { WINBINDD_DOMAIN_INFO, winbindd_domain_info, "DOMAIN_INFO" },
516 { WINBINDD_DC_INFO, winbindd_dc_info, "DC_INFO" },
517 { WINBINDD_NETBIOS_NAME, winbindd_netbios_name, "NETBIOS_NAME" },
518 { WINBINDD_PRIV_PIPE_DIR, winbindd_priv_pipe_dir,
519 "WINBINDD_PRIV_PIPE_DIR" },
521 /* Credential cache access */
522 { WINBINDD_CCACHE_NTLMAUTH, winbindd_ccache_ntlm_auth, "NTLMAUTH" },
523 { WINBINDD_CCACHE_SAVE, winbindd_ccache_save, "CCACHE_SAVE" },
525 /* End of list */
527 { WINBINDD_NUM_CMDS, NULL, "NONE" }
530 struct winbindd_async_dispatch_table {
531 enum winbindd_cmd cmd;
532 const char *cmd_name;
533 struct tevent_req *(*send_req)(TALLOC_CTX *mem_ctx,
534 struct tevent_context *ev,
535 struct winbindd_cli_state *cli,
536 struct winbindd_request *request);
537 NTSTATUS (*recv_req)(struct tevent_req *req,
538 struct winbindd_response *presp);
541 static struct winbindd_async_dispatch_table async_nonpriv_table[] = {
542 { WINBINDD_PING, "PING",
543 wb_ping_send, wb_ping_recv },
544 { WINBINDD_LOOKUPSID, "LOOKUPSID",
545 winbindd_lookupsid_send, winbindd_lookupsid_recv },
546 { WINBINDD_LOOKUPSIDS, "LOOKUPSIDS",
547 winbindd_lookupsids_send, winbindd_lookupsids_recv },
548 { WINBINDD_LOOKUPNAME, "LOOKUPNAME",
549 winbindd_lookupname_send, winbindd_lookupname_recv },
550 { WINBINDD_SID_TO_UID, "SID_TO_UID",
551 winbindd_sid_to_uid_send, winbindd_sid_to_uid_recv },
552 { WINBINDD_SID_TO_GID, "SID_TO_GID",
553 winbindd_sid_to_gid_send, winbindd_sid_to_gid_recv },
554 { WINBINDD_UID_TO_SID, "UID_TO_SID",
555 winbindd_uid_to_sid_send, winbindd_uid_to_sid_recv },
556 { WINBINDD_GID_TO_SID, "GID_TO_SID",
557 winbindd_gid_to_sid_send, winbindd_gid_to_sid_recv },
558 { WINBINDD_SIDS_TO_XIDS, "SIDS_TO_XIDS",
559 winbindd_sids_to_xids_send, winbindd_sids_to_xids_recv },
560 { WINBINDD_GETPWSID, "GETPWSID",
561 winbindd_getpwsid_send, winbindd_getpwsid_recv },
562 { WINBINDD_GETPWNAM, "GETPWNAM",
563 winbindd_getpwnam_send, winbindd_getpwnam_recv },
564 { WINBINDD_GETPWUID, "GETPWUID",
565 winbindd_getpwuid_send, winbindd_getpwuid_recv },
566 { WINBINDD_GETSIDALIASES, "GETSIDALIASES",
567 winbindd_getsidaliases_send, winbindd_getsidaliases_recv },
568 { WINBINDD_GETUSERDOMGROUPS, "GETUSERDOMGROUPS",
569 winbindd_getuserdomgroups_send, winbindd_getuserdomgroups_recv },
570 { WINBINDD_GETGROUPS, "GETGROUPS",
571 winbindd_getgroups_send, winbindd_getgroups_recv },
572 { WINBINDD_SHOW_SEQUENCE, "SHOW_SEQUENCE",
573 winbindd_show_sequence_send, winbindd_show_sequence_recv },
574 { WINBINDD_GETGRGID, "GETGRGID",
575 winbindd_getgrgid_send, winbindd_getgrgid_recv },
576 { WINBINDD_GETGRNAM, "GETGRNAM",
577 winbindd_getgrnam_send, winbindd_getgrnam_recv },
578 { WINBINDD_GETUSERSIDS, "GETUSERSIDS",
579 winbindd_getusersids_send, winbindd_getusersids_recv },
580 { WINBINDD_LOOKUPRIDS, "LOOKUPRIDS",
581 winbindd_lookuprids_send, winbindd_lookuprids_recv },
582 { WINBINDD_SETPWENT, "SETPWENT",
583 winbindd_setpwent_send, winbindd_setpwent_recv },
584 { WINBINDD_GETPWENT, "GETPWENT",
585 winbindd_getpwent_send, winbindd_getpwent_recv },
586 { WINBINDD_ENDPWENT, "ENDPWENT",
587 winbindd_endpwent_send, winbindd_endpwent_recv },
588 { WINBINDD_DSGETDCNAME, "DSGETDCNAME",
589 winbindd_dsgetdcname_send, winbindd_dsgetdcname_recv },
590 { WINBINDD_GETDCNAME, "GETDCNAME",
591 winbindd_getdcname_send, winbindd_getdcname_recv },
592 { WINBINDD_SETGRENT, "SETGRENT",
593 winbindd_setgrent_send, winbindd_setgrent_recv },
594 { WINBINDD_GETGRENT, "GETGRENT",
595 winbindd_getgrent_send, winbindd_getgrent_recv },
596 { WINBINDD_ENDGRENT, "ENDGRENT",
597 winbindd_endgrent_send, winbindd_endgrent_recv },
598 { WINBINDD_LIST_USERS, "LIST_USERS",
599 winbindd_list_users_send, winbindd_list_users_recv },
600 { WINBINDD_LIST_GROUPS, "LIST_GROUPS",
601 winbindd_list_groups_send, winbindd_list_groups_recv },
602 { WINBINDD_CHECK_MACHACC, "CHECK_MACHACC",
603 winbindd_check_machine_acct_send, winbindd_check_machine_acct_recv },
604 { WINBINDD_PING_DC, "PING_DC",
605 winbindd_ping_dc_send, winbindd_ping_dc_recv },
606 { WINBINDD_PAM_AUTH, "PAM_AUTH",
607 winbindd_pam_auth_send, winbindd_pam_auth_recv },
608 { WINBINDD_PAM_LOGOFF, "PAM_LOGOFF",
609 winbindd_pam_logoff_send, winbindd_pam_logoff_recv },
610 { WINBINDD_PAM_CHAUTHTOK, "PAM_CHAUTHTOK",
611 winbindd_pam_chauthtok_send, winbindd_pam_chauthtok_recv },
612 { WINBINDD_PAM_CHNG_PSWD_AUTH_CRAP, "PAM_CHNG_PSWD_AUTH_CRAP",
613 winbindd_pam_chng_pswd_auth_crap_send,
614 winbindd_pam_chng_pswd_auth_crap_recv },
615 { WINBINDD_WINS_BYIP, "WINS_BYIP",
616 winbindd_wins_byip_send, winbindd_wins_byip_recv },
617 { WINBINDD_WINS_BYNAME, "WINS_BYNAME",
618 winbindd_wins_byname_send, winbindd_wins_byname_recv },
620 { 0, NULL, NULL, NULL }
623 static struct winbindd_async_dispatch_table async_priv_table[] = {
624 { WINBINDD_ALLOCATE_UID, "ALLOCATE_UID",
625 winbindd_allocate_uid_send, winbindd_allocate_uid_recv },
626 { WINBINDD_ALLOCATE_GID, "ALLOCATE_GID",
627 winbindd_allocate_gid_send, winbindd_allocate_gid_recv },
628 { WINBINDD_CHANGE_MACHACC, "CHANGE_MACHACC",
629 winbindd_change_machine_acct_send, winbindd_change_machine_acct_recv },
630 { WINBINDD_PAM_AUTH_CRAP, "PAM_AUTH_CRAP",
631 winbindd_pam_auth_crap_send, winbindd_pam_auth_crap_recv },
633 { 0, NULL, NULL, NULL }
636 static void wb_request_done(struct tevent_req *req);
638 static void process_request(struct winbindd_cli_state *state)
640 struct winbindd_dispatch_table *table = dispatch_table;
641 struct winbindd_async_dispatch_table *atable;
643 state->mem_ctx = talloc_named(state, 0, "winbind request");
644 if (state->mem_ctx == NULL)
645 return;
647 /* Remember who asked us. */
648 state->pid = state->request->pid;
650 state->cmd_name = "unknown request";
651 state->recv_fn = NULL;
652 state->last_access = time(NULL);
654 /* Process command */
656 for (atable = async_nonpriv_table; atable->send_req; atable += 1) {
657 if (state->request->cmd == atable->cmd) {
658 break;
662 if ((atable->send_req == NULL) && state->privileged) {
663 for (atable = async_priv_table; atable->send_req;
664 atable += 1) {
665 if (state->request->cmd == atable->cmd) {
666 break;
671 if (atable->send_req != NULL) {
672 struct tevent_req *req;
674 state->cmd_name = atable->cmd_name;
675 state->recv_fn = atable->recv_req;
677 DEBUG(10, ("process_request: Handling async request %d:%s\n",
678 (int)state->pid, state->cmd_name));
680 req = atable->send_req(state->mem_ctx, winbind_event_context(),
681 state, state->request);
682 if (req == NULL) {
683 DEBUG(0, ("process_request: atable->send failed for "
684 "%s\n", atable->cmd_name));
685 request_error(state);
686 return;
688 tevent_req_set_callback(req, wb_request_done, state);
689 return;
692 state->response = talloc_zero(state->mem_ctx,
693 struct winbindd_response);
694 if (state->response == NULL) {
695 DEBUG(10, ("talloc failed\n"));
696 remove_client(state);
697 return;
699 state->response->result = WINBINDD_PENDING;
700 state->response->length = sizeof(struct winbindd_response);
702 for (table = dispatch_table; table->fn; table++) {
703 if (state->request->cmd == table->cmd) {
704 DEBUG(10,("process_request: request fn %s\n",
705 table->winbindd_cmd_name ));
706 state->cmd_name = table->winbindd_cmd_name;
707 table->fn(state);
708 break;
712 if (!table->fn) {
713 DEBUG(10,("process_request: unknown request fn number %d\n",
714 (int)state->request->cmd ));
715 request_error(state);
719 static void wb_request_done(struct tevent_req *req)
721 struct winbindd_cli_state *state = tevent_req_callback_data(
722 req, struct winbindd_cli_state);
723 NTSTATUS status;
725 state->response = talloc_zero(state->mem_ctx,
726 struct winbindd_response);
727 if (state->response == NULL) {
728 DEBUG(0, ("wb_request_done[%d:%s]: talloc_zero failed - removing client\n",
729 (int)state->pid, state->cmd_name));
730 remove_client(state);
731 return;
733 state->response->result = WINBINDD_PENDING;
734 state->response->length = sizeof(struct winbindd_response);
736 status = state->recv_fn(req, state->response);
737 TALLOC_FREE(req);
739 DEBUG(10,("wb_request_done[%d:%s]: %s\n",
740 (int)state->pid, state->cmd_name, nt_errstr(status)));
742 if (!NT_STATUS_IS_OK(status)) {
743 request_error(state);
744 return;
746 request_ok(state);
750 * This is the main event loop of winbind requests. It goes through a
751 * state-machine of 3 read/write requests, 4 if you have extra data to send.
753 * An idle winbind client has a read request of 4 bytes outstanding,
754 * finalizing function is request_len_recv, checking the length. request_recv
755 * then processes the packet. The processing function then at some point has
756 * to call request_finished which schedules sending the response.
759 static void request_finished(struct winbindd_cli_state *state);
761 static void winbind_client_request_read(struct tevent_req *req);
762 static void winbind_client_response_written(struct tevent_req *req);
764 static void request_finished(struct winbindd_cli_state *state)
766 struct tevent_req *req;
768 TALLOC_FREE(state->request);
770 req = wb_resp_write_send(state, winbind_event_context(),
771 state->out_queue, state->sock,
772 state->response);
773 if (req == NULL) {
774 DEBUG(10,("request_finished[%d:%s]: wb_resp_write_send() failed\n",
775 (int)state->pid, state->cmd_name));
776 remove_client(state);
777 return;
779 tevent_req_set_callback(req, winbind_client_response_written, state);
782 static void winbind_client_response_written(struct tevent_req *req)
784 struct winbindd_cli_state *state = tevent_req_callback_data(
785 req, struct winbindd_cli_state);
786 ssize_t ret;
787 int err;
789 ret = wb_resp_write_recv(req, &err);
790 TALLOC_FREE(req);
791 if (ret == -1) {
792 close(state->sock);
793 state->sock = -1;
794 DEBUG(2, ("Could not write response[%d:%s] to client: %s\n",
795 (int)state->pid, state->cmd_name, strerror(err)));
796 remove_client(state);
797 return;
800 DEBUG(10,("winbind_client_response_written[%d:%s]: delivered response "
801 "to client\n", (int)state->pid, state->cmd_name));
803 TALLOC_FREE(state->mem_ctx);
804 state->response = NULL;
805 state->cmd_name = "no request";
806 state->recv_fn = NULL;
808 req = wb_req_read_send(state, winbind_event_context(), state->sock,
809 WINBINDD_MAX_EXTRA_DATA);
810 if (req == NULL) {
811 remove_client(state);
812 return;
814 tevent_req_set_callback(req, winbind_client_request_read, state);
817 void request_error(struct winbindd_cli_state *state)
819 SMB_ASSERT(state->response->result == WINBINDD_PENDING);
820 state->response->result = WINBINDD_ERROR;
821 request_finished(state);
824 void request_ok(struct winbindd_cli_state *state)
826 SMB_ASSERT(state->response->result == WINBINDD_PENDING);
827 state->response->result = WINBINDD_OK;
828 request_finished(state);
831 /* Process a new connection by adding it to the client connection list */
833 static void new_connection(int listen_sock, bool privileged)
835 struct sockaddr_un sunaddr;
836 struct winbindd_cli_state *state;
837 struct tevent_req *req;
838 socklen_t len;
839 int sock;
841 /* Accept connection */
843 len = sizeof(sunaddr);
845 sock = accept(listen_sock, (struct sockaddr *)(void *)&sunaddr, &len);
847 if (sock == -1) {
848 if (errno != EINTR) {
849 DEBUG(0, ("Failed to accept socket - %s\n",
850 strerror(errno)));
852 return;
855 DEBUG(6,("accepted socket %d\n", sock));
857 /* Create new connection structure */
859 if ((state = talloc_zero(NULL, struct winbindd_cli_state)) == NULL) {
860 close(sock);
861 return;
864 state->sock = sock;
866 state->out_queue = tevent_queue_create(state, "winbind client reply");
867 if (state->out_queue == NULL) {
868 close(sock);
869 TALLOC_FREE(state);
870 return;
873 state->last_access = time(NULL);
875 state->privileged = privileged;
877 req = wb_req_read_send(state, winbind_event_context(), state->sock,
878 WINBINDD_MAX_EXTRA_DATA);
879 if (req == NULL) {
880 TALLOC_FREE(state);
881 close(sock);
882 return;
884 tevent_req_set_callback(req, winbind_client_request_read, state);
886 /* Add to connection list */
888 winbindd_add_client(state);
891 static void winbind_client_request_read(struct tevent_req *req)
893 struct winbindd_cli_state *state = tevent_req_callback_data(
894 req, struct winbindd_cli_state);
895 ssize_t ret;
896 int err;
898 ret = wb_req_read_recv(req, state, &state->request, &err);
899 TALLOC_FREE(req);
900 if (ret == -1) {
901 if (err == EPIPE) {
902 DEBUG(6, ("closing socket %d, client exited\n",
903 state->sock));
904 } else {
905 DEBUG(2, ("Could not read client request from fd %d: "
906 "%s\n", state->sock, strerror(err)));
908 close(state->sock);
909 state->sock = -1;
910 remove_client(state);
911 return;
913 process_request(state);
916 /* Remove a client connection from client connection list */
918 static void remove_client(struct winbindd_cli_state *state)
920 char c = 0;
921 int nwritten;
923 /* It's a dead client - hold a funeral */
925 if (state == NULL) {
926 return;
929 if (state->sock != -1) {
930 /* tell client, we are closing ... */
931 nwritten = write(state->sock, &c, sizeof(c));
932 if (nwritten == -1) {
933 DEBUG(2, ("final write to client failed: %s\n",
934 strerror(errno)));
937 /* Close socket */
939 close(state->sock);
940 state->sock = -1;
943 TALLOC_FREE(state->mem_ctx);
945 /* Remove from list and free */
947 winbindd_remove_client(state);
948 TALLOC_FREE(state);
951 /* Is a client idle? */
953 static bool client_is_idle(struct winbindd_cli_state *state) {
954 return (state->request == NULL &&
955 state->response == NULL &&
956 !state->pwent_state && !state->grent_state);
959 /* Shutdown client connection which has been idle for the longest time */
961 static bool remove_idle_client(void)
963 struct winbindd_cli_state *state, *remove_state = NULL;
964 time_t last_access = 0;
965 int nidle = 0;
967 for (state = winbindd_client_list(); state; state = state->next) {
968 if (client_is_idle(state)) {
969 nidle++;
970 if (!last_access || state->last_access < last_access) {
971 last_access = state->last_access;
972 remove_state = state;
977 if (remove_state) {
978 DEBUG(5,("Found %d idle client connections, shutting down sock %d, pid %u\n",
979 nidle, remove_state->sock, (unsigned int)remove_state->pid));
980 remove_client(remove_state);
981 return True;
984 return False;
987 struct winbindd_listen_state {
988 bool privileged;
989 int fd;
992 static void winbindd_listen_fde_handler(struct tevent_context *ev,
993 struct tevent_fd *fde,
994 uint16_t flags,
995 void *private_data)
997 struct winbindd_listen_state *s = talloc_get_type_abort(private_data,
998 struct winbindd_listen_state);
1000 while (winbindd_num_clients() > lp_winbind_max_clients() - 1) {
1001 DEBUG(5,("winbindd: Exceeding %d client "
1002 "connections, removing idle "
1003 "connection.\n", lp_winbind_max_clients()));
1004 if (!remove_idle_client()) {
1005 DEBUG(0,("winbindd: Exceeding %d "
1006 "client connections, no idle "
1007 "connection found\n",
1008 lp_winbind_max_clients()));
1009 break;
1012 new_connection(s->fd, s->privileged);
1016 * Winbindd socket accessor functions
1019 const char *get_winbind_pipe_dir(void)
1021 return lp_parm_const_string(-1, "winbindd", "socket dir", get_dyn_WINBINDD_SOCKET_DIR());
1024 char *get_winbind_priv_pipe_dir(void)
1026 return state_path(WINBINDD_PRIV_SOCKET_SUBDIR);
1029 static bool winbindd_setup_listeners(void)
1031 struct winbindd_listen_state *pub_state = NULL;
1032 struct winbindd_listen_state *priv_state = NULL;
1033 struct tevent_fd *fde;
1034 int rc;
1036 pub_state = talloc(winbind_event_context(),
1037 struct winbindd_listen_state);
1038 if (!pub_state) {
1039 goto failed;
1042 pub_state->privileged = false;
1043 pub_state->fd = create_pipe_sock(
1044 get_winbind_pipe_dir(), WINBINDD_SOCKET_NAME, 0755);
1045 if (pub_state->fd == -1) {
1046 goto failed;
1048 rc = listen(pub_state->fd, 5);
1049 if (rc < 0) {
1050 goto failed;
1053 fde = tevent_add_fd(winbind_event_context(), pub_state, pub_state->fd,
1054 TEVENT_FD_READ, winbindd_listen_fde_handler,
1055 pub_state);
1056 if (fde == NULL) {
1057 close(pub_state->fd);
1058 goto failed;
1060 tevent_fd_set_auto_close(fde);
1062 priv_state = talloc(winbind_event_context(),
1063 struct winbindd_listen_state);
1064 if (!priv_state) {
1065 goto failed;
1068 priv_state->privileged = true;
1069 priv_state->fd = create_pipe_sock(
1070 get_winbind_priv_pipe_dir(), WINBINDD_SOCKET_NAME, 0750);
1071 if (priv_state->fd == -1) {
1072 goto failed;
1074 rc = listen(priv_state->fd, 5);
1075 if (rc < 0) {
1076 goto failed;
1079 fde = tevent_add_fd(winbind_event_context(), priv_state,
1080 priv_state->fd, TEVENT_FD_READ,
1081 winbindd_listen_fde_handler, priv_state);
1082 if (fde == NULL) {
1083 close(priv_state->fd);
1084 goto failed;
1086 tevent_fd_set_auto_close(fde);
1088 return true;
1089 failed:
1090 TALLOC_FREE(pub_state);
1091 TALLOC_FREE(priv_state);
1092 return false;
1095 bool winbindd_use_idmap_cache(void)
1097 return !opt_nocache;
1100 bool winbindd_use_cache(void)
1102 return !opt_nocache;
1105 static void winbindd_register_handlers(struct messaging_context *msg_ctx,
1106 bool foreground)
1108 /* Setup signal handlers */
1110 if (!winbindd_setup_sig_term_handler(true))
1111 exit(1);
1112 if (!winbindd_setup_stdin_handler(true, foreground))
1113 exit(1);
1114 if (!winbindd_setup_sig_hup_handler(NULL))
1115 exit(1);
1116 if (!winbindd_setup_sig_chld_handler())
1117 exit(1);
1118 if (!winbindd_setup_sig_usr2_handler())
1119 exit(1);
1121 CatchSignal(SIGPIPE, SIG_IGN); /* Ignore sigpipe */
1124 * Ensure all cache and idmap caches are consistent
1125 * and initialized before we startup.
1127 if (!winbindd_cache_validate_and_initialize()) {
1128 exit(1);
1131 /* get broadcast messages */
1133 if (!serverid_register(messaging_server_id(msg_ctx),
1134 FLAG_MSG_GENERAL |
1135 FLAG_MSG_WINBIND |
1136 FLAG_MSG_DBWRAP)) {
1137 DEBUG(1, ("Could not register myself in serverid.tdb\n"));
1138 exit(1);
1141 /* React on 'smbcontrol winbindd reload-config' in the same way
1142 as to SIGHUP signal */
1143 messaging_register(msg_ctx, NULL,
1144 MSG_SMB_CONF_UPDATED, msg_reload_services);
1145 messaging_register(msg_ctx, NULL,
1146 MSG_SHUTDOWN, msg_shutdown);
1148 /* Handle online/offline messages. */
1149 messaging_register(msg_ctx, NULL,
1150 MSG_WINBIND_OFFLINE, winbind_msg_offline);
1151 messaging_register(msg_ctx, NULL,
1152 MSG_WINBIND_ONLINE, winbind_msg_online);
1153 messaging_register(msg_ctx, NULL,
1154 MSG_WINBIND_ONLINESTATUS, winbind_msg_onlinestatus);
1156 messaging_register(msg_ctx, NULL,
1157 MSG_DUMP_EVENT_LIST, winbind_msg_dump_event_list);
1159 messaging_register(msg_ctx, NULL,
1160 MSG_WINBIND_VALIDATE_CACHE,
1161 winbind_msg_validate_cache);
1163 messaging_register(msg_ctx, NULL,
1164 MSG_WINBIND_DUMP_DOMAIN_LIST,
1165 winbind_msg_dump_domain_list);
1167 messaging_register(msg_ctx, NULL,
1168 MSG_WINBIND_IP_DROPPED,
1169 winbind_msg_ip_dropped_parent);
1171 /* Register handler for MSG_DEBUG. */
1172 messaging_register(msg_ctx, NULL,
1173 MSG_DEBUG,
1174 winbind_msg_debug);
1176 netsamlogon_cache_init(); /* Non-critical */
1178 /* clear the cached list of trusted domains */
1180 wcache_tdc_clear();
1182 if (!init_domain_list()) {
1183 DEBUG(0,("unable to initialize domain list\n"));
1184 exit(1);
1187 init_idmap_child();
1188 init_locator_child();
1190 smb_nscd_flush_user_cache();
1191 smb_nscd_flush_group_cache();
1193 if (lp_allow_trusted_domains()) {
1194 if (tevent_add_timer(winbind_event_context(), NULL, timeval_zero(),
1195 rescan_trusted_domains, NULL) == NULL) {
1196 DEBUG(0, ("Could not trigger rescan_trusted_domains()\n"));
1197 exit(1);
1203 struct winbindd_addrchanged_state {
1204 struct addrchange_context *ctx;
1205 struct tevent_context *ev;
1206 struct messaging_context *msg_ctx;
1209 static void winbindd_addr_changed(struct tevent_req *req);
1211 static void winbindd_init_addrchange(TALLOC_CTX *mem_ctx,
1212 struct tevent_context *ev,
1213 struct messaging_context *msg_ctx)
1215 struct winbindd_addrchanged_state *state;
1216 struct tevent_req *req;
1217 NTSTATUS status;
1219 state = talloc(mem_ctx, struct winbindd_addrchanged_state);
1220 if (state == NULL) {
1221 DEBUG(10, ("talloc failed\n"));
1222 return;
1224 state->ev = ev;
1225 state->msg_ctx = msg_ctx;
1227 status = addrchange_context_create(state, &state->ctx);
1228 if (!NT_STATUS_IS_OK(status)) {
1229 DEBUG(10, ("addrchange_context_create failed: %s\n",
1230 nt_errstr(status)));
1231 TALLOC_FREE(state);
1232 return;
1234 req = addrchange_send(state, ev, state->ctx);
1235 if (req == NULL) {
1236 DEBUG(0, ("addrchange_send failed\n"));
1237 TALLOC_FREE(state);
1238 return;
1240 tevent_req_set_callback(req, winbindd_addr_changed, state);
1243 static void winbindd_addr_changed(struct tevent_req *req)
1245 struct winbindd_addrchanged_state *state = tevent_req_callback_data(
1246 req, struct winbindd_addrchanged_state);
1247 enum addrchange_type type;
1248 struct sockaddr_storage addr;
1249 NTSTATUS status;
1251 status = addrchange_recv(req, &type, &addr);
1252 TALLOC_FREE(req);
1253 if (!NT_STATUS_IS_OK(status)) {
1254 DEBUG(10, ("addrchange_recv failed: %s, stop listening\n",
1255 nt_errstr(status)));
1256 TALLOC_FREE(state);
1257 return;
1259 if (type == ADDRCHANGE_DEL) {
1260 char addrstr[INET6_ADDRSTRLEN];
1261 DATA_BLOB blob;
1263 print_sockaddr(addrstr, sizeof(addrstr), &addr);
1265 DEBUG(3, ("winbindd: kernel (AF_NETLINK) dropped ip %s\n",
1266 addrstr));
1268 blob = data_blob_const(addrstr, strlen(addrstr)+1);
1270 status = messaging_send(state->msg_ctx,
1271 messaging_server_id(state->msg_ctx),
1272 MSG_WINBIND_IP_DROPPED, &blob);
1273 if (!NT_STATUS_IS_OK(status)) {
1274 DEBUG(10, ("messaging_send failed: %s - ignoring\n",
1275 nt_errstr(status)));
1278 req = addrchange_send(state, state->ev, state->ctx);
1279 if (req == NULL) {
1280 DEBUG(0, ("addrchange_send failed\n"));
1281 TALLOC_FREE(state);
1282 return;
1284 tevent_req_set_callback(req, winbindd_addr_changed, state);
1287 /* Main function */
1289 int main(int argc, char **argv, char **envp)
1291 static bool is_daemon = False;
1292 static bool Fork = True;
1293 static bool log_stdout = False;
1294 static bool no_process_group = False;
1295 enum {
1296 OPT_DAEMON = 1000,
1297 OPT_FORK,
1298 OPT_NO_PROCESS_GROUP,
1299 OPT_LOG_STDOUT
1301 struct poptOption long_options[] = {
1302 POPT_AUTOHELP
1303 { "stdout", 'S', POPT_ARG_NONE, NULL, OPT_LOG_STDOUT, "Log to stdout" },
1304 { "foreground", 'F', POPT_ARG_NONE, NULL, OPT_FORK, "Daemon in foreground mode" },
1305 { "no-process-group", 0, POPT_ARG_NONE, NULL, OPT_NO_PROCESS_GROUP, "Don't create a new process group" },
1306 { "daemon", 'D', POPT_ARG_NONE, NULL, OPT_DAEMON, "Become a daemon (default)" },
1307 { "interactive", 'i', POPT_ARG_NONE, NULL, 'i', "Interactive mode" },
1308 { "no-caching", 'n', POPT_ARG_NONE, NULL, 'n', "Disable caching" },
1309 POPT_COMMON_SAMBA
1310 POPT_TABLEEND
1312 poptContext pc;
1313 int opt;
1314 TALLOC_CTX *frame;
1315 NTSTATUS status;
1316 bool ok;
1319 * Do this before any other talloc operation
1321 talloc_enable_null_tracking();
1322 frame = talloc_stackframe();
1324 setup_logging("winbindd", DEBUG_DEFAULT_STDOUT);
1326 /* glibc (?) likes to print "User defined signal 1" and exit if a
1327 SIGUSR[12] is received before a handler is installed */
1329 CatchSignal(SIGUSR1, SIG_IGN);
1330 CatchSignal(SIGUSR2, SIG_IGN);
1332 fault_setup();
1333 dump_core_setup("winbindd", lp_logfile(talloc_tos()));
1335 load_case_tables();
1337 /* Initialise for running in non-root mode */
1339 sec_init();
1341 set_remote_machine_name("winbindd", False);
1343 /* Set environment variable so we don't recursively call ourselves.
1344 This may also be useful interactively. */
1346 if ( !winbind_off() ) {
1347 DEBUG(0,("Failed to disable recusive winbindd calls. Exiting.\n"));
1348 exit(1);
1351 /* Initialise samba/rpc client stuff */
1353 pc = poptGetContext("winbindd", argc, (const char **)argv, long_options, 0);
1355 while ((opt = poptGetNextOpt(pc)) != -1) {
1356 switch (opt) {
1357 /* Don't become a daemon */
1358 case OPT_DAEMON:
1359 is_daemon = True;
1360 break;
1361 case 'i':
1362 interactive = True;
1363 log_stdout = True;
1364 Fork = False;
1365 break;
1366 case OPT_FORK:
1367 Fork = false;
1368 break;
1369 case OPT_NO_PROCESS_GROUP:
1370 no_process_group = true;
1371 break;
1372 case OPT_LOG_STDOUT:
1373 log_stdout = true;
1374 break;
1375 case 'n':
1376 opt_nocache = true;
1377 break;
1378 default:
1379 d_fprintf(stderr, "\nInvalid option %s: %s\n\n",
1380 poptBadOption(pc, 0), poptStrerror(opt));
1381 poptPrintUsage(pc, stderr, 0);
1382 exit(1);
1386 /* We call dump_core_setup one more time because the command line can
1387 * set the log file or the log-basename and this will influence where
1388 * cores are stored. Without this call get_dyn_LOGFILEBASE will be
1389 * the default value derived from build's prefix. For EOM this value
1390 * is often not related to the path where winbindd is actually run
1391 * in production.
1393 dump_core_setup("winbindd", lp_logfile(talloc_tos()));
1394 if (is_daemon && interactive) {
1395 d_fprintf(stderr,"\nERROR: "
1396 "Option -i|--interactive is not allowed together with -D|--daemon\n\n");
1397 poptPrintUsage(pc, stderr, 0);
1398 exit(1);
1401 if (log_stdout && Fork) {
1402 d_fprintf(stderr, "\nERROR: "
1403 "Can't log to stdout (-S) unless daemon is in foreground +(-F) or interactive (-i)\n\n");
1404 poptPrintUsage(pc, stderr, 0);
1405 exit(1);
1408 poptFreeContext(pc);
1410 if (!override_logfile) {
1411 char *lfile = NULL;
1412 if (asprintf(&lfile,"%s/log.winbindd",
1413 get_dyn_LOGFILEBASE()) > 0) {
1414 lp_set_logfile(lfile);
1415 SAFE_FREE(lfile);
1419 if (log_stdout) {
1420 setup_logging("winbindd", DEBUG_STDOUT);
1421 } else {
1422 setup_logging("winbindd", DEBUG_FILE);
1424 reopen_logs();
1426 DEBUG(0,("winbindd version %s started.\n", samba_version_string()));
1427 DEBUGADD(0,("%s\n", COPYRIGHT_STARTUP_MESSAGE));
1429 if (!lp_load_initial_only(get_dyn_CONFIGFILE())) {
1430 DEBUG(0, ("error opening config file '%s'\n", get_dyn_CONFIGFILE()));
1431 exit(1);
1433 /* After parsing the configuration file we setup the core path one more time
1434 * as the log file might have been set in the configuration and cores's
1435 * path is by default basename(lp_logfile()).
1437 dump_core_setup("winbindd", lp_logfile(talloc_tos()));
1439 if (lp_server_role() == ROLE_ACTIVE_DIRECTORY_DC) {
1440 DEBUG(0, ("server role = 'active directory domain controller' not compatible with running the winbindd binary. \n"));
1441 DEBUGADD(0, ("You should start 'samba' instead, and it will control starting the internal AD DC winbindd implementation, which is not the same as this one\n"));
1442 exit(1);
1445 /* Initialise messaging system */
1447 if (winbind_messaging_context() == NULL) {
1448 exit(1);
1451 if (!reload_services_file(NULL)) {
1452 DEBUG(0, ("error opening config file\n"));
1453 exit(1);
1456 ok = directory_create_or_exist(lp_lockdir(), geteuid(), 0755);
1457 if (!ok) {
1458 DEBUG(0, ("Failed to create directory %s for lock files - %s\n",
1459 lp_lockdir(), strerror(errno)));
1460 exit(1);
1463 ok = directory_create_or_exist(lp_piddir(), geteuid(), 0755);
1464 if (!ok) {
1465 DEBUG(0, ("Failed to create directory %s for pid files - %s\n",
1466 lp_piddir(), strerror(errno)));
1467 exit(1);
1470 /* Setup names. */
1472 if (!init_names())
1473 exit(1);
1475 load_interfaces();
1477 if (!secrets_init()) {
1479 DEBUG(0,("Could not initialize domain trust account secrets. Giving up\n"));
1480 return False;
1483 /* Unblock all signals we are interested in as they may have been
1484 blocked by the parent process. */
1486 BlockSignals(False, SIGINT);
1487 BlockSignals(False, SIGQUIT);
1488 BlockSignals(False, SIGTERM);
1489 BlockSignals(False, SIGUSR1);
1490 BlockSignals(False, SIGUSR2);
1491 BlockSignals(False, SIGHUP);
1492 BlockSignals(False, SIGCHLD);
1494 if (!interactive)
1495 become_daemon(Fork, no_process_group, log_stdout);
1497 pidfile_create(lp_piddir(), "winbindd");
1499 #if HAVE_SETPGID
1501 * If we're interactive we want to set our own process group for
1502 * signal management.
1504 if (interactive && !no_process_group)
1505 setpgid( (pid_t)0, (pid_t)0);
1506 #endif
1508 TimeInit();
1510 /* Don't use winbindd_reinit_after_fork here as
1511 * we're just starting up and haven't created any
1512 * winbindd-specific resources we must free yet. JRA.
1515 status = reinit_after_fork(winbind_messaging_context(),
1516 winbind_event_context(),
1517 false);
1518 if (!NT_STATUS_IS_OK(status)) {
1519 DEBUG(0,("reinit_after_fork() failed\n"));
1520 exit(1);
1524 * Do not initialize the parent-child-pipe before becoming
1525 * a daemon: this is used to detect a died parent in the child
1526 * process.
1528 status = init_before_fork();
1529 if (!NT_STATUS_IS_OK(status)) {
1530 DEBUG(0, ("init_before_fork failed: %s\n", nt_errstr(status)));
1531 exit(1);
1534 winbindd_register_handlers(winbind_messaging_context(), !Fork);
1536 status = init_system_session_info();
1537 if (!NT_STATUS_IS_OK(status)) {
1538 DEBUG(1, ("ERROR: failed to setup system user info: %s.\n",
1539 nt_errstr(status)));
1540 exit(1);
1543 rpc_lsarpc_init(NULL);
1544 rpc_samr_init(NULL);
1546 winbindd_init_addrchange(NULL, winbind_event_context(),
1547 winbind_messaging_context());
1549 /* setup listen sockets */
1551 if (!winbindd_setup_listeners()) {
1552 DEBUG(0,("winbindd_setup_listeners() failed\n"));
1553 exit(1);
1556 TALLOC_FREE(frame);
1557 /* Loop waiting for requests */
1558 while (1) {
1559 frame = talloc_stackframe();
1561 if (tevent_loop_once(winbind_event_context()) == -1) {
1562 DEBUG(1, ("tevent_loop_once() failed: %s\n",
1563 strerror(errno)));
1564 return 1;
1567 TALLOC_FREE(frame);
1570 return 0;