source: trunk/server/source3/winbindd/winbindd.c@ 975

Last change on this file since 975 was 945, checked in by Silvan Scherrer, 9 years ago

samba server: add exceptq to windindd as well
File size: 37.9 KB
Line 
1/*
2 Unix SMB/CIFS implementation.
3
4 Winbind daemon for ntdom nss module
5
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
10
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.
15
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.
20
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/>.
23*/
24#ifdef __OS2__
25#define INCL_DOSEXCEPTIONS
26#define INCL_DOSPROCESS
27#define INCL_DOSMODULEMGR
28#define INCL_LOADEXCEPTQ
29#define INCL_FORKEXCEPTQ
30#include "os2.h"
31#include "exceptq.h"
32#undef FILE_CREATE
33#undef FILE_OPEN
34#endif
35
36#include "includes.h"
37#include "popt_common.h"
38#include "winbindd.h"
39#include "nsswitch/winbind_client.h"
40#include "nsswitch/wb_reqtrans.h"
41#include "ntdomain.h"
42#include "../librpc/gen_ndr/srv_lsa.h"
43#include "../librpc/gen_ndr/srv_samr.h"
44#include "secrets.h"
45#include "idmap.h"
46#include "lib/addrchange.h"
47#include "serverid.h"
48#include "auth.h"
49#include "messages.h"
50
51#undef DBGC_CLASS
52#define DBGC_CLASS DBGC_WINBIND
53
54static bool client_is_idle(struct winbindd_cli_state *state);
55static void remove_client(struct winbindd_cli_state *state);
56
57static bool opt_nocache = False;
58static bool interactive = False;
59
60extern bool override_logfile;
61
62struct messaging_context *winbind_messaging_context(void)
63{
64 struct messaging_context *msg_ctx = server_messaging_context();
65 if (likely(msg_ctx != NULL)) {
66 return msg_ctx;
67 }
68 smb_panic("Could not init winbindd's messaging context.\n");
69 return NULL;
70}
71
72/* Reload configuration */
73
74static bool reload_services_file(const char *lfile)
75{
76 bool ret;
77
78 if (lp_loaded()) {
79 char *fname = lp_configfile();
80
81 if (file_exist(fname) && !strcsequal(fname,get_dyn_CONFIGFILE())) {
82 set_dyn_CONFIGFILE(fname);
83 }
84 TALLOC_FREE(fname);
85 }
86
87 /* if this is a child, restore the logfile to the special
88 name - <domain>, idmap, etc. */
89 if (lfile && *lfile) {
90 lp_set_logfile(lfile);
91 }
92
93 reopen_logs();
94 ret = lp_load(get_dyn_CONFIGFILE(),False,False,True,True);
95
96 reopen_logs();
97 load_interfaces();
98
99 return(ret);
100}
101
102
103/**************************************************************************** **
104 Handle a fault..
105 **************************************************************************** */
106
107static void fault_quit(void)
108{
109 dump_core();
110}
111
112static void winbindd_status(void)
113{
114 struct winbindd_cli_state *tmp;
115
116 DEBUG(0, ("winbindd status:\n"));
117
118 /* Print client state information */
119
120 DEBUG(0, ("\t%d clients currently active\n", winbindd_num_clients()));
121
122 if (DEBUGLEVEL >= 2 && winbindd_num_clients()) {
123 DEBUG(2, ("\tclient list:\n"));
124 for(tmp = winbindd_client_list(); tmp; tmp = tmp->next) {
125 DEBUGADD(2, ("\t\tpid %lu, sock %d (%s)\n",
126 (unsigned long)tmp->pid, tmp->sock,
127 client_is_idle(tmp) ? "idle" : "active"));
128 }
129 }
130}
131
132/* Flush client cache */
133
134static void flush_caches(void)
135{
136 /* We need to invalidate cached user list entries on a SIGHUP
137 otherwise cached access denied errors due to restrict anonymous
138 hang around until the sequence number changes. */
139
140 if (!wcache_invalidate_cache()) {
141 DEBUG(0, ("invalidating the cache failed; revalidate the cache\n"));
142 if (!winbindd_cache_validate_and_initialize()) {
143 exit(1);
144 }
145 }
146}
147
148static void flush_caches_noinit(void)
149{
150 /*
151 * We need to invalidate cached user list entries on a SIGHUP
152 * otherwise cached access denied errors due to restrict anonymous
153 * hang around until the sequence number changes.
154 * NB
155 * Skip uninitialized domains when flush cache.
156 * If domain is not initialized, it means it is never
157 * used or never become online. look, wcache_invalidate_cache()
158 * -> get_cache() -> init_dc_connection(). It causes a lot of traffic
159 * for unused domains and large traffic for primay domain's DC if there
160 * are many domains..
161 */
162
163 if (!wcache_invalidate_cache_noinit()) {
164 DEBUG(0, ("invalidating the cache failed; revalidate the cache\n"));
165 if (!winbindd_cache_validate_and_initialize()) {
166 exit(1);
167 }
168 }
169}
170
171/* Handle the signal by unlinking socket and exiting */
172
173static void terminate(bool is_parent)
174{
175 if (is_parent) {
176 /* When parent goes away we should
177 * remove the socket file. Not so
178 * when children terminate.
179 */
180 char *path = NULL;
181
182 if (asprintf(&path, "%s/%s",
183 get_winbind_pipe_dir(), WINBINDD_SOCKET_NAME) > 0) {
184 unlink(path);
185 SAFE_FREE(path);
186 }
187 }
188
189 idmap_close();
190
191 trustdom_cache_shutdown();
192
193 gencache_stabilize();
194
195#if 0
196 if (interactive) {
197 TALLOC_CTX *mem_ctx = talloc_init("end_description");
198 char *description = talloc_describe_all(mem_ctx);
199
200 DEBUG(3, ("tallocs left:\n%s\n", description));
201 talloc_destroy(mem_ctx);
202 }
203#endif
204
205 if (is_parent) {
206 serverid_deregister(procid_self());
207 pidfile_unlink();
208 }
209
210 exit(0);
211}
212
213static void winbindd_sig_term_handler(struct tevent_context *ev,
214 struct tevent_signal *se,
215 int signum,
216 int count,
217 void *siginfo,
218 void *private_data)
219{
220 bool *is_parent = talloc_get_type_abort(private_data, bool);
221
222 DEBUG(0,("Got sig[%d] terminate (is_parent=%d)\n",
223 signum, (int)*is_parent));
224 terminate(*is_parent);
225}
226
227bool winbindd_setup_sig_term_handler(bool parent)
228{
229 struct tevent_signal *se;
230 bool *is_parent;
231
232 is_parent = talloc(winbind_event_context(), bool);
233 if (!is_parent) {
234 return false;
235 }
236
237 *is_parent = parent;
238
239 se = tevent_add_signal(winbind_event_context(),
240 is_parent,
241 SIGTERM, 0,
242 winbindd_sig_term_handler,
243 is_parent);
244 if (!se) {
245 DEBUG(0,("failed to setup SIGTERM handler"));
246 talloc_free(is_parent);
247 return false;
248 }
249
250 se = tevent_add_signal(winbind_event_context(),
251 is_parent,
252 SIGINT, 0,
253 winbindd_sig_term_handler,
254 is_parent);
255 if (!se) {
256 DEBUG(0,("failed to setup SIGINT handler"));
257 talloc_free(is_parent);
258 return false;
259 }
260
261 se = tevent_add_signal(winbind_event_context(),
262 is_parent,
263 SIGQUIT, 0,
264 winbindd_sig_term_handler,
265 is_parent);
266 if (!se) {
267 DEBUG(0,("failed to setup SIGINT handler"));
268 talloc_free(is_parent);
269 return false;
270 }
271
272 return true;
273}
274
275static void winbindd_sig_hup_handler(struct tevent_context *ev,
276 struct tevent_signal *se,
277 int signum,
278 int count,
279 void *siginfo,
280 void *private_data)
281{
282 const char *file = (const char *)private_data;
283
284 DEBUG(1,("Reloading services after SIGHUP\n"));
285 flush_caches_noinit();
286 reload_services_file(file);
287}
288
289bool winbindd_setup_sig_hup_handler(const char *lfile)
290{
291 struct tevent_signal *se;
292 char *file = NULL;
293
294 if (lfile) {
295 file = talloc_strdup(winbind_event_context(),
296 lfile);
297 if (!file) {
298 return false;
299 }
300 }
301
302 se = tevent_add_signal(winbind_event_context(),
303 winbind_event_context(),
304 SIGHUP, 0,
305 winbindd_sig_hup_handler,
306 file);
307 if (!se) {
308 return false;
309 }
310
311 return true;
312}
313
314static void winbindd_sig_chld_handler(struct tevent_context *ev,
315 struct tevent_signal *se,
316 int signum,
317 int count,
318 void *siginfo,
319 void *private_data)
320{
321 pid_t pid;
322
323 while ((pid = sys_waitpid(-1, NULL, WNOHANG)) > 0) {
324 winbind_child_died(pid);
325 }
326}
327
328static bool winbindd_setup_sig_chld_handler(void)
329{
330 struct tevent_signal *se;
331
332 se = tevent_add_signal(winbind_event_context(),
333 winbind_event_context(),
334 SIGCHLD, 0,
335 winbindd_sig_chld_handler,
336 NULL);
337 if (!se) {
338 return false;
339 }
340
341 return true;
342}
343
344static void winbindd_sig_usr2_handler(struct tevent_context *ev,
345 struct tevent_signal *se,
346 int signum,
347 int count,
348 void *siginfo,
349 void *private_data)
350{
351 winbindd_status();
352}
353
354static bool winbindd_setup_sig_usr2_handler(void)
355{
356 struct tevent_signal *se;
357
358 se = tevent_add_signal(winbind_event_context(),
359 winbind_event_context(),
360 SIGUSR2, 0,
361 winbindd_sig_usr2_handler,
362 NULL);
363 if (!se) {
364 return false;
365 }
366
367 return true;
368}
369
370/* React on 'smbcontrol winbindd reload-config' in the same way as on SIGHUP*/
371static void msg_reload_services(struct messaging_context *msg,
372 void *private_data,
373 uint32_t msg_type,
374 struct server_id server_id,
375 DATA_BLOB *data)
376{
377 /* Flush various caches */
378 flush_caches();
379 reload_services_file((const char *) private_data);
380}
381
382/* React on 'smbcontrol winbindd shutdown' in the same way as on SIGTERM*/
383static void msg_shutdown(struct messaging_context *msg,
384 void *private_data,
385 uint32_t msg_type,
386 struct server_id server_id,
387 DATA_BLOB *data)
388{
389 /* only the parent waits for this message */
390 DEBUG(0,("Got shutdown message\n"));
391 terminate(true);
392}
393
394
395static void winbind_msg_validate_cache(struct messaging_context *msg_ctx,
396 void *private_data,
397 uint32_t msg_type,
398 struct server_id server_id,
399 DATA_BLOB *data)
400{
401 uint8 ret;
402 pid_t child_pid;
403 NTSTATUS status;
404
405 DEBUG(10, ("winbindd_msg_validate_cache: got validate-cache "
406 "message.\n"));
407
408 /*
409 * call the validation code from a child:
410 * so we don't block the main winbindd and the validation
411 * code can safely use fork/waitpid...
412 */
413 child_pid = sys_fork();
414
415 if (child_pid == -1) {
416 DEBUG(1, ("winbind_msg_validate_cache: Could not fork: %s\n",
417 strerror(errno)));
418 return;
419 }
420
421 if (child_pid != 0) {
422 /* parent */
423 DEBUG(5, ("winbind_msg_validate_cache: child created with "
424 "pid %d.\n", (int)child_pid));
425 return;
426 }
427
428 /* child */
429
430 status = winbindd_reinit_after_fork(NULL, NULL);
431 if (!NT_STATUS_IS_OK(status)) {
432 DEBUG(1, ("winbindd_reinit_after_fork failed: %s\n",
433 nt_errstr(status)));
434 _exit(0);
435 }
436
437 /* install default SIGCHLD handler: validation code uses fork/waitpid */
438 CatchSignal(SIGCHLD, SIG_DFL);
439
440 ret = (uint8)winbindd_validate_cache_nobackup();
441 DEBUG(10, ("winbindd_msg_validata_cache: got return value %d\n", ret));
442 messaging_send_buf(msg_ctx, server_id, MSG_WINBIND_VALIDATE_CACHE, &ret,
443 (size_t)1);
444 _exit(0);
445}
446
447static struct winbindd_dispatch_table {
448 enum winbindd_cmd cmd;
449 void (*fn)(struct winbindd_cli_state *state);
450 const char *winbindd_cmd_name;
451} dispatch_table[] = {
452
453 /* Enumeration functions */
454
455 { WINBINDD_LIST_TRUSTDOM, winbindd_list_trusted_domains,
456 "LIST_TRUSTDOM" },
457
458 /* Miscellaneous */
459
460 { WINBINDD_INFO, winbindd_info, "INFO" },
461 { WINBINDD_INTERFACE_VERSION, winbindd_interface_version,
462 "INTERFACE_VERSION" },
463 { WINBINDD_DOMAIN_NAME, winbindd_domain_name, "DOMAIN_NAME" },
464 { WINBINDD_DOMAIN_INFO, winbindd_domain_info, "DOMAIN_INFO" },
465 { WINBINDD_DC_INFO, winbindd_dc_info, "DC_INFO" },
466 { WINBINDD_NETBIOS_NAME, winbindd_netbios_name, "NETBIOS_NAME" },
467 { WINBINDD_PRIV_PIPE_DIR, winbindd_priv_pipe_dir,
468 "WINBINDD_PRIV_PIPE_DIR" },
469
470 /* Credential cache access */
471 { WINBINDD_CCACHE_NTLMAUTH, winbindd_ccache_ntlm_auth, "NTLMAUTH" },
472 { WINBINDD_CCACHE_SAVE, winbindd_ccache_save, "CCACHE_SAVE" },
473
474 /* WINS functions */
475
476 { WINBINDD_WINS_BYNAME, winbindd_wins_byname, "WINS_BYNAME" },
477 { WINBINDD_WINS_BYIP, winbindd_wins_byip, "WINS_BYIP" },
478
479 /* End of list */
480
481 { WINBINDD_NUM_CMDS, NULL, "NONE" }
482};
483
484struct winbindd_async_dispatch_table {
485 enum winbindd_cmd cmd;
486 const char *cmd_name;
487 struct tevent_req *(*send_req)(TALLOC_CTX *mem_ctx,
488 struct tevent_context *ev,
489 struct winbindd_cli_state *cli,
490 struct winbindd_request *request);
491 NTSTATUS (*recv_req)(struct tevent_req *req,
492 struct winbindd_response *presp);
493};
494
495static struct winbindd_async_dispatch_table async_nonpriv_table[] = {
496 { WINBINDD_PING, "PING",
497 wb_ping_send, wb_ping_recv },
498 { WINBINDD_LOOKUPSID, "LOOKUPSID",
499 winbindd_lookupsid_send, winbindd_lookupsid_recv },
500 { WINBINDD_LOOKUPSIDS, "LOOKUPSIDS",
501 winbindd_lookupsids_send, winbindd_lookupsids_recv },
502 { WINBINDD_LOOKUPNAME, "LOOKUPNAME",
503 winbindd_lookupname_send, winbindd_lookupname_recv },
504 { WINBINDD_SID_TO_UID, "SID_TO_UID",
505 winbindd_sid_to_uid_send, winbindd_sid_to_uid_recv },
506 { WINBINDD_SID_TO_GID, "SID_TO_GID",
507 winbindd_sid_to_gid_send, winbindd_sid_to_gid_recv },
508 { WINBINDD_UID_TO_SID, "UID_TO_SID",
509 winbindd_uid_to_sid_send, winbindd_uid_to_sid_recv },
510 { WINBINDD_GID_TO_SID, "GID_TO_SID",
511 winbindd_gid_to_sid_send, winbindd_gid_to_sid_recv },
512 { WINBINDD_SIDS_TO_XIDS, "SIDS_TO_XIDS",
513 winbindd_sids_to_xids_send, winbindd_sids_to_xids_recv },
514 { WINBINDD_GETPWSID, "GETPWSID",
515 winbindd_getpwsid_send, winbindd_getpwsid_recv },
516 { WINBINDD_GETPWNAM, "GETPWNAM",
517 winbindd_getpwnam_send, winbindd_getpwnam_recv },
518 { WINBINDD_GETPWUID, "GETPWUID",
519 winbindd_getpwuid_send, winbindd_getpwuid_recv },
520 { WINBINDD_GETSIDALIASES, "GETSIDALIASES",
521 winbindd_getsidaliases_send, winbindd_getsidaliases_recv },
522 { WINBINDD_GETUSERDOMGROUPS, "GETUSERDOMGROUPS",
523 winbindd_getuserdomgroups_send, winbindd_getuserdomgroups_recv },
524 { WINBINDD_GETGROUPS, "GETGROUPS",
525 winbindd_getgroups_send, winbindd_getgroups_recv },
526 { WINBINDD_SHOW_SEQUENCE, "SHOW_SEQUENCE",
527 winbindd_show_sequence_send, winbindd_show_sequence_recv },
528 { WINBINDD_GETGRGID, "GETGRGID",
529 winbindd_getgrgid_send, winbindd_getgrgid_recv },
530 { WINBINDD_GETGRNAM, "GETGRNAM",
531 winbindd_getgrnam_send, winbindd_getgrnam_recv },
532 { WINBINDD_GETUSERSIDS, "GETUSERSIDS",
533 winbindd_getusersids_send, winbindd_getusersids_recv },
534 { WINBINDD_LOOKUPRIDS, "LOOKUPRIDS",
535 winbindd_lookuprids_send, winbindd_lookuprids_recv },
536 { WINBINDD_SETPWENT, "SETPWENT",
537 winbindd_setpwent_send, winbindd_setpwent_recv },
538 { WINBINDD_GETPWENT, "GETPWENT",
539 winbindd_getpwent_send, winbindd_getpwent_recv },
540 { WINBINDD_ENDPWENT, "ENDPWENT",
541 winbindd_endpwent_send, winbindd_endpwent_recv },
542 { WINBINDD_DSGETDCNAME, "DSGETDCNAME",
543 winbindd_dsgetdcname_send, winbindd_dsgetdcname_recv },
544 { WINBINDD_GETDCNAME, "GETDCNAME",
545 winbindd_getdcname_send, winbindd_getdcname_recv },
546 { WINBINDD_SETGRENT, "SETGRENT",
547 winbindd_setgrent_send, winbindd_setgrent_recv },
548 { WINBINDD_GETGRENT, "GETGRENT",
549 winbindd_getgrent_send, winbindd_getgrent_recv },
550 { WINBINDD_ENDGRENT, "ENDGRENT",
551 winbindd_endgrent_send, winbindd_endgrent_recv },
552 { WINBINDD_LIST_USERS, "LIST_USERS",
553 winbindd_list_users_send, winbindd_list_users_recv },
554 { WINBINDD_LIST_GROUPS, "LIST_GROUPS",
555 winbindd_list_groups_send, winbindd_list_groups_recv },
556 { WINBINDD_CHECK_MACHACC, "CHECK_MACHACC",
557 winbindd_check_machine_acct_send, winbindd_check_machine_acct_recv },
558 { WINBINDD_PING_DC, "PING_DC",
559 winbindd_ping_dc_send, winbindd_ping_dc_recv },
560 { WINBINDD_PAM_AUTH, "PAM_AUTH",
561 winbindd_pam_auth_send, winbindd_pam_auth_recv },
562 { WINBINDD_PAM_LOGOFF, "PAM_LOGOFF",
563 winbindd_pam_logoff_send, winbindd_pam_logoff_recv },
564 { WINBINDD_PAM_CHAUTHTOK, "PAM_CHAUTHTOK",
565 winbindd_pam_chauthtok_send, winbindd_pam_chauthtok_recv },
566 { WINBINDD_PAM_CHNG_PSWD_AUTH_CRAP, "PAM_CHNG_PSWD_AUTH_CRAP",
567 winbindd_pam_chng_pswd_auth_crap_send,
568 winbindd_pam_chng_pswd_auth_crap_recv },
569
570 { 0, NULL, NULL, NULL }
571};
572
573static struct winbindd_async_dispatch_table async_priv_table[] = {
574 { WINBINDD_ALLOCATE_UID, "ALLOCATE_UID",
575 winbindd_allocate_uid_send, winbindd_allocate_uid_recv },
576 { WINBINDD_ALLOCATE_GID, "ALLOCATE_GID",
577 winbindd_allocate_gid_send, winbindd_allocate_gid_recv },
578 { WINBINDD_CHANGE_MACHACC, "CHANGE_MACHACC",
579 winbindd_change_machine_acct_send, winbindd_change_machine_acct_recv },
580 { WINBINDD_PAM_AUTH_CRAP, "PAM_AUTH_CRAP",
581 winbindd_pam_auth_crap_send, winbindd_pam_auth_crap_recv },
582
583 { 0, NULL, NULL, NULL }
584};
585
586static void wb_request_done(struct tevent_req *req);
587
588static void process_request(struct winbindd_cli_state *state)
589{
590 struct winbindd_dispatch_table *table = dispatch_table;
591 struct winbindd_async_dispatch_table *atable;
592
593 state->mem_ctx = talloc_named(state, 0, "winbind request");
594 if (state->mem_ctx == NULL)
595 return;
596
597 /* Remember who asked us. */
598 state->pid = state->request->pid;
599
600 state->cmd_name = "unknown request";
601 state->recv_fn = NULL;
602 state->last_access = time(NULL);
603
604 /* Process command */
605
606 for (atable = async_nonpriv_table; atable->send_req; atable += 1) {
607 if (state->request->cmd == atable->cmd) {
608 break;
609 }
610 }
611
612 if ((atable->send_req == NULL) && state->privileged) {
613 for (atable = async_priv_table; atable->send_req;
614 atable += 1) {
615 if (state->request->cmd == atable->cmd) {
616 break;
617 }
618 }
619 }
620
621 if (atable->send_req != NULL) {
622 struct tevent_req *req;
623
624 state->cmd_name = atable->cmd_name;
625 state->recv_fn = atable->recv_req;
626
627 DEBUG(10, ("process_request: Handling async request %d:%s\n",
628 (int)state->pid, state->cmd_name));
629
630 req = atable->send_req(state->mem_ctx, winbind_event_context(),
631 state, state->request);
632 if (req == NULL) {
633 DEBUG(0, ("process_request: atable->send failed for "
634 "%s\n", atable->cmd_name));
635 request_error(state);
636 return;
637 }
638 tevent_req_set_callback(req, wb_request_done, state);
639 return;
640 }
641
642 state->response = talloc_zero(state->mem_ctx,
643 struct winbindd_response);
644 if (state->response == NULL) {
645 DEBUG(10, ("talloc failed\n"));
646 remove_client(state);
647 return;
648 }
649 state->response->result = WINBINDD_PENDING;
650 state->response->length = sizeof(struct winbindd_response);
651
652 for (table = dispatch_table; table->fn; table++) {
653 if (state->request->cmd == table->cmd) {
654 DEBUG(10,("process_request: request fn %s\n",
655 table->winbindd_cmd_name ));
656 state->cmd_name = table->winbindd_cmd_name;
657 table->fn(state);
658 break;
659 }
660 }
661
662 if (!table->fn) {
663 DEBUG(10,("process_request: unknown request fn number %d\n",
664 (int)state->request->cmd ));
665 request_error(state);
666 }
667}
668
669static void wb_request_done(struct tevent_req *req)
670{
671 struct winbindd_cli_state *state = tevent_req_callback_data(
672 req, struct winbindd_cli_state);
673 NTSTATUS status;
674
675 state->response = talloc_zero(state->mem_ctx,
676 struct winbindd_response);
677 if (state->response == NULL) {
678 DEBUG(0, ("wb_request_done[%d:%s]: talloc_zero failed - removing client\n",
679 (int)state->pid, state->cmd_name));
680 remove_client(state);
681 return;
682 }
683 state->response->result = WINBINDD_PENDING;
684 state->response->length = sizeof(struct winbindd_response);
685
686 status = state->recv_fn(req, state->response);
687 TALLOC_FREE(req);
688
689 DEBUG(10,("wb_request_done[%d:%s]: %s\n",
690 (int)state->pid, state->cmd_name, nt_errstr(status)));
691
692 if (!NT_STATUS_IS_OK(status)) {
693 request_error(state);
694 return;
695 }
696 request_ok(state);
697}
698
699/*
700 * This is the main event loop of winbind requests. It goes through a
701 * state-machine of 3 read/write requests, 4 if you have extra data to send.
702 *
703 * An idle winbind client has a read request of 4 bytes outstanding,
704 * finalizing function is request_len_recv, checking the length. request_recv
705 * then processes the packet. The processing function then at some point has
706 * to call request_finished which schedules sending the response.
707 */
708
709static void request_finished(struct winbindd_cli_state *state);
710
711static void winbind_client_request_read(struct tevent_req *req);
712static void winbind_client_response_written(struct tevent_req *req);
713
714static void request_finished(struct winbindd_cli_state *state)
715{
716 struct tevent_req *req;
717
718 TALLOC_FREE(state->request);
719
720 req = wb_resp_write_send(state, winbind_event_context(),
721 state->out_queue, state->sock,
722 state->response);
723 if (req == NULL) {
724 DEBUG(10,("request_finished[%d:%s]: wb_resp_write_send() failed\n",
725 (int)state->pid, state->cmd_name));
726 remove_client(state);
727 return;
728 }
729 tevent_req_set_callback(req, winbind_client_response_written, state);
730}
731
732static void winbind_client_response_written(struct tevent_req *req)
733{
734 struct winbindd_cli_state *state = tevent_req_callback_data(
735 req, struct winbindd_cli_state);
736 ssize_t ret;
737 int err;
738
739 ret = wb_resp_write_recv(req, &err);
740 TALLOC_FREE(req);
741 if (ret == -1) {
742 close(state->sock);
743 state->sock = -1;
744 DEBUG(2, ("Could not write response[%d:%s] to client: %s\n",
745 (int)state->pid, state->cmd_name, strerror(err)));
746 remove_client(state);
747 return;
748 }
749
750 DEBUG(10,("winbind_client_response_written[%d:%s]: delivered response "
751 "to client\n", (int)state->pid, state->cmd_name));
752
753 TALLOC_FREE(state->mem_ctx);
754 state->response = NULL;
755 state->cmd_name = "no request";
756 state->recv_fn = NULL;
757
758 req = wb_req_read_send(state, winbind_event_context(), state->sock,
759 WINBINDD_MAX_EXTRA_DATA);
760 if (req == NULL) {
761 remove_client(state);
762 return;
763 }
764 tevent_req_set_callback(req, winbind_client_request_read, state);
765}
766
767void request_error(struct winbindd_cli_state *state)
768{
769 SMB_ASSERT(state->response->result == WINBINDD_PENDING);
770 state->response->result = WINBINDD_ERROR;
771 request_finished(state);
772}
773
774void request_ok(struct winbindd_cli_state *state)
775{
776 SMB_ASSERT(state->response->result == WINBINDD_PENDING);
777 state->response->result = WINBINDD_OK;
778 request_finished(state);
779}
780
781/* Process a new connection by adding it to the client connection list */
782
783static void new_connection(int listen_sock, bool privileged)
784{
785 struct sockaddr_un sunaddr;
786 struct winbindd_cli_state *state;
787 struct tevent_req *req;
788 socklen_t len;
789 int sock;
790
791 /* Accept connection */
792
793 len = sizeof(sunaddr);
794
795 sock = accept(listen_sock, (struct sockaddr *)(void *)&sunaddr, &len);
796
797 if (sock == -1) {
798 if (errno != EINTR) {
799 DEBUG(0, ("Faild to accept socket - %s\n",
800 strerror(errno)));
801 }
802 return;
803 }
804
805 DEBUG(6,("accepted socket %d\n", sock));
806
807 /* Create new connection structure */
808
809 if ((state = TALLOC_ZERO_P(NULL, struct winbindd_cli_state)) == NULL) {
810 close(sock);
811 return;
812 }
813
814 state->sock = sock;
815
816 state->out_queue = tevent_queue_create(state, "winbind client reply");
817 if (state->out_queue == NULL) {
818 close(sock);
819 TALLOC_FREE(state);
820 return;
821 }
822
823 state->last_access = time(NULL);
824
825 state->privileged = privileged;
826
827 req = wb_req_read_send(state, winbind_event_context(), state->sock,
828 WINBINDD_MAX_EXTRA_DATA);
829 if (req == NULL) {
830 TALLOC_FREE(state);
831 close(sock);
832 return;
833 }
834 tevent_req_set_callback(req, winbind_client_request_read, state);
835
836 /* Add to connection list */
837
838 winbindd_add_client(state);
839}
840
841static void winbind_client_request_read(struct tevent_req *req)
842{
843 struct winbindd_cli_state *state = tevent_req_callback_data(
844 req, struct winbindd_cli_state);
845 ssize_t ret;
846 int err;
847
848 ret = wb_req_read_recv(req, state, &state->request, &err);
849 TALLOC_FREE(req);
850 if (ret == -1) {
851 if (err == EPIPE) {
852 DEBUG(6, ("closing socket %d, client exited\n",
853 state->sock));
854 } else {
855 DEBUG(2, ("Could not read client request from fd %d: "
856 "%s\n", state->sock, strerror(err)));
857 }
858 close(state->sock);
859 state->sock = -1;
860 remove_client(state);
861 return;
862 }
863 process_request(state);
864}
865
866/* Remove a client connection from client connection list */
867
868static void remove_client(struct winbindd_cli_state *state)
869{
870 char c = 0;
871 int nwritten;
872
873 /* It's a dead client - hold a funeral */
874
875 if (state == NULL) {
876 return;
877 }
878
879 if (state->sock != -1) {
880 /* tell client, we are closing ... */
881 nwritten = write(state->sock, &c, sizeof(c));
882 if (nwritten == -1) {
883 DEBUG(2, ("final write to client failed: %s\n",
884 strerror(errno)));
885 }
886
887 /* Close socket */
888
889 close(state->sock);
890 state->sock = -1;
891 }
892
893 TALLOC_FREE(state->mem_ctx);
894
895 /* Remove from list and free */
896
897 winbindd_remove_client(state);
898 TALLOC_FREE(state);
899}
900
901/* Is a client idle? */
902
903static bool client_is_idle(struct winbindd_cli_state *state) {
904 return (state->request == NULL &&
905 state->response == NULL &&
906 !state->pwent_state && !state->grent_state);
907}
908
909/* Shutdown client connection which has been idle for the longest time */
910
911static bool remove_idle_client(void)
912{
913 struct winbindd_cli_state *state, *remove_state = NULL;
914 time_t last_access = 0;
915 int nidle = 0;
916
917 for (state = winbindd_client_list(); state; state = state->next) {
918 if (client_is_idle(state)) {
919 nidle++;
920 if (!last_access || state->last_access < last_access) {
921 last_access = state->last_access;
922 remove_state = state;
923 }
924 }
925 }
926
927 if (remove_state) {
928 DEBUG(5,("Found %d idle client connections, shutting down sock %d, pid %u\n",
929 nidle, remove_state->sock, (unsigned int)remove_state->pid));
930 remove_client(remove_state);
931 return True;
932 }
933
934 return False;
935}
936
937struct winbindd_listen_state {
938 bool privileged;
939 int fd;
940};
941
942static void winbindd_listen_fde_handler(struct tevent_context *ev,
943 struct tevent_fd *fde,
944 uint16_t flags,
945 void *private_data)
946{
947 struct winbindd_listen_state *s = talloc_get_type_abort(private_data,
948 struct winbindd_listen_state);
949
950 while (winbindd_num_clients() > lp_winbind_max_clients() - 1) {
951 DEBUG(5,("winbindd: Exceeding %d client "
952 "connections, removing idle "
953 "connection.\n", lp_winbind_max_clients()));
954 if (!remove_idle_client()) {
955 DEBUG(0,("winbindd: Exceeding %d "
956 "client connections, no idle "
957 "connection found\n",
958 lp_winbind_max_clients()));
959 break;
960 }
961 }
962 new_connection(s->fd, s->privileged);
963}
964
965/*
966 * Winbindd socket accessor functions
967 */
968
969const char *get_winbind_pipe_dir(void)
970{
971 return lp_parm_const_string(-1, "winbindd", "socket dir", WINBINDD_SOCKET_DIR);
972}
973
974char *get_winbind_priv_pipe_dir(void)
975{
976 return lock_path(WINBINDD_PRIV_SOCKET_SUBDIR);
977}
978
979static bool winbindd_setup_listeners(void)
980{
981 struct winbindd_listen_state *pub_state = NULL;
982 struct winbindd_listen_state *priv_state = NULL;
983 struct tevent_fd *fde;
984
985 pub_state = talloc(winbind_event_context(),
986 struct winbindd_listen_state);
987 if (!pub_state) {
988 goto failed;
989 }
990
991 pub_state->privileged = false;
992 pub_state->fd = create_pipe_sock(
993 get_winbind_pipe_dir(), WINBINDD_SOCKET_NAME, 0755);
994 if (pub_state->fd == -1) {
995 goto failed;
996 }
997
998 fde = tevent_add_fd(winbind_event_context(), pub_state, pub_state->fd,
999 TEVENT_FD_READ, winbindd_listen_fde_handler,
1000 pub_state);
1001 if (fde == NULL) {
1002 close(pub_state->fd);
1003 goto failed;
1004 }
1005 tevent_fd_set_auto_close(fde);
1006
1007 priv_state = talloc(winbind_event_context(),
1008 struct winbindd_listen_state);
1009 if (!priv_state) {
1010 goto failed;
1011 }
1012
1013 priv_state->privileged = true;
1014 priv_state->fd = create_pipe_sock(
1015 get_winbind_priv_pipe_dir(), WINBINDD_SOCKET_NAME, 0750);
1016 if (priv_state->fd == -1) {
1017 goto failed;
1018 }
1019
1020 fde = tevent_add_fd(winbind_event_context(), priv_state,
1021 priv_state->fd, TEVENT_FD_READ,
1022 winbindd_listen_fde_handler, priv_state);
1023 if (fde == NULL) {
1024 close(priv_state->fd);
1025 goto failed;
1026 }
1027 tevent_fd_set_auto_close(fde);
1028
1029 return true;
1030failed:
1031 TALLOC_FREE(pub_state);
1032 TALLOC_FREE(priv_state);
1033 return false;
1034}
1035
1036bool winbindd_use_idmap_cache(void)
1037{
1038 return !opt_nocache;
1039}
1040
1041bool winbindd_use_cache(void)
1042{
1043 return !opt_nocache;
1044}
1045
1046void winbindd_register_handlers(void)
1047{
1048 /* Setup signal handlers */
1049
1050 if (!winbindd_setup_sig_term_handler(true))
1051 exit(1);
1052 if (!winbindd_setup_sig_hup_handler(NULL))
1053 exit(1);
1054 if (!winbindd_setup_sig_chld_handler())
1055 exit(1);
1056 if (!winbindd_setup_sig_usr2_handler())
1057 exit(1);
1058
1059 CatchSignal(SIGPIPE, SIG_IGN); /* Ignore sigpipe */
1060
1061 /*
1062 * Ensure all cache and idmap caches are consistent
1063 * and initialized before we startup.
1064 */
1065 if (!winbindd_cache_validate_and_initialize()) {
1066 exit(1);
1067 }
1068
1069 /* get broadcast messages */
1070
1071 if (!serverid_register(procid_self(),
1072 FLAG_MSG_GENERAL|FLAG_MSG_DBWRAP)) {
1073 DEBUG(1, ("Could not register myself in serverid.tdb\n"));
1074 exit(1);
1075 }
1076
1077 /* React on 'smbcontrol winbindd reload-config' in the same way
1078 as to SIGHUP signal */
1079 messaging_register(winbind_messaging_context(), NULL,
1080 MSG_SMB_CONF_UPDATED, msg_reload_services);
1081 messaging_register(winbind_messaging_context(), NULL,
1082 MSG_SHUTDOWN, msg_shutdown);
1083
1084 /* Handle online/offline messages. */
1085 messaging_register(winbind_messaging_context(), NULL,
1086 MSG_WINBIND_OFFLINE, winbind_msg_offline);
1087 messaging_register(winbind_messaging_context(), NULL,
1088 MSG_WINBIND_ONLINE, winbind_msg_online);
1089 messaging_register(winbind_messaging_context(), NULL,
1090 MSG_WINBIND_ONLINESTATUS, winbind_msg_onlinestatus);
1091
1092 /* Handle domain online/offline messages for domains */
1093 messaging_register(winbind_messaging_context(), NULL,
1094 MSG_WINBIND_DOMAIN_OFFLINE, winbind_msg_domain_offline);
1095 messaging_register(winbind_messaging_context(), NULL,
1096 MSG_WINBIND_DOMAIN_ONLINE, winbind_msg_domain_online);
1097
1098 messaging_register(winbind_messaging_context(), NULL,
1099 MSG_DUMP_EVENT_LIST, winbind_msg_dump_event_list);
1100
1101 messaging_register(winbind_messaging_context(), NULL,
1102 MSG_WINBIND_VALIDATE_CACHE,
1103 winbind_msg_validate_cache);
1104
1105 messaging_register(winbind_messaging_context(), NULL,
1106 MSG_WINBIND_DUMP_DOMAIN_LIST,
1107 winbind_msg_dump_domain_list);
1108
1109 messaging_register(winbind_messaging_context(), NULL,
1110 MSG_WINBIND_IP_DROPPED,
1111 winbind_msg_ip_dropped_parent);
1112
1113 /* Register handler for MSG_DEBUG. */
1114 messaging_register(winbind_messaging_context(), NULL,
1115 MSG_DEBUG,
1116 winbind_msg_debug);
1117
1118 netsamlogon_cache_init(); /* Non-critical */
1119
1120 /* clear the cached list of trusted domains */
1121
1122 wcache_tdc_clear();
1123
1124 if (!init_domain_list()) {
1125 DEBUG(0,("unable to initialize domain list\n"));
1126 exit(1);
1127 }
1128
1129 init_idmap_child();
1130 init_locator_child();
1131
1132 smb_nscd_flush_user_cache();
1133 smb_nscd_flush_group_cache();
1134
1135 if (lp_allow_trusted_domains()) {
1136 if (tevent_add_timer(winbind_event_context(), NULL, timeval_zero(),
1137 rescan_trusted_domains, NULL) == NULL) {
1138 DEBUG(0, ("Could not trigger rescan_trusted_domains()\n"));
1139 exit(1);
1140 }
1141 }
1142
1143}
1144
1145struct winbindd_addrchanged_state {
1146 struct addrchange_context *ctx;
1147 struct tevent_context *ev;
1148 struct messaging_context *msg_ctx;
1149};
1150
1151static void winbindd_addr_changed(struct tevent_req *req);
1152
1153static void winbindd_init_addrchange(TALLOC_CTX *mem_ctx,
1154 struct tevent_context *ev,
1155 struct messaging_context *msg_ctx)
1156{
1157 struct winbindd_addrchanged_state *state;
1158 struct tevent_req *req;
1159 NTSTATUS status;
1160
1161 state = talloc(mem_ctx, struct winbindd_addrchanged_state);
1162 if (state == NULL) {
1163 DEBUG(10, ("talloc failed\n"));
1164 return;
1165 }
1166 state->ev = ev;
1167 state->msg_ctx = msg_ctx;
1168
1169 status = addrchange_context_create(state, &state->ctx);
1170 if (!NT_STATUS_IS_OK(status)) {
1171 DEBUG(10, ("addrchange_context_create failed: %s\n",
1172 nt_errstr(status)));
1173 TALLOC_FREE(state);
1174 return;
1175 }
1176 req = addrchange_send(state, ev, state->ctx);
1177 if (req == NULL) {
1178 DEBUG(0, ("addrchange_send failed\n"));
1179 TALLOC_FREE(state);
1180 return;
1181 }
1182 tevent_req_set_callback(req, winbindd_addr_changed, state);
1183}
1184
1185static void winbindd_addr_changed(struct tevent_req *req)
1186{
1187 struct winbindd_addrchanged_state *state = tevent_req_callback_data(
1188 req, struct winbindd_addrchanged_state);
1189 enum addrchange_type type;
1190 struct sockaddr_storage addr;
1191 NTSTATUS status;
1192
1193 status = addrchange_recv(req, &type, &addr);
1194 TALLOC_FREE(req);
1195 if (!NT_STATUS_IS_OK(status)) {
1196 DEBUG(10, ("addrchange_recv failed: %s, stop listening\n",
1197 nt_errstr(status)));
1198 TALLOC_FREE(state);
1199 return;
1200 }
1201 if (type == ADDRCHANGE_DEL) {
1202 char addrstr[INET6_ADDRSTRLEN];
1203 DATA_BLOB blob;
1204
1205 print_sockaddr(addrstr, sizeof(addrstr), &addr);
1206
1207 DEBUG(3, ("winbindd: kernel (AF_NETLINK) dropped ip %s\n",
1208 addrstr));
1209
1210 blob = data_blob_const(addrstr, strlen(addrstr)+1);
1211
1212 status = messaging_send(state->msg_ctx,
1213 messaging_server_id(state->msg_ctx),
1214 MSG_WINBIND_IP_DROPPED, &blob);
1215 if (!NT_STATUS_IS_OK(status)) {
1216 DEBUG(10, ("messaging_send failed: %s - ignoring\n",
1217 nt_errstr(status)));
1218 }
1219 }
1220 req = addrchange_send(state, state->ev, state->ctx);
1221 if (req == NULL) {
1222 DEBUG(0, ("addrchange_send failed\n"));
1223 TALLOC_FREE(state);
1224 return;
1225 }
1226 tevent_req_set_callback(req, winbindd_addr_changed, state);
1227}
1228
1229/* Main function */
1230
1231int main(int argc, char **argv, char **envp)
1232{
1233 static bool is_daemon = False;
1234 static bool Fork = True;
1235 static bool log_stdout = False;
1236 static bool no_process_group = False;
1237 enum {
1238 OPT_DAEMON = 1000,
1239 OPT_FORK,
1240 OPT_NO_PROCESS_GROUP,
1241 OPT_LOG_STDOUT
1242 };
1243 struct poptOption long_options[] = {
1244 POPT_AUTOHELP
1245 { "stdout", 'S', POPT_ARG_NONE, NULL, OPT_LOG_STDOUT, "Log to stdout" },
1246 { "foreground", 'F', POPT_ARG_NONE, NULL, OPT_FORK, "Daemon in foreground mode" },
1247 { "no-process-group", 0, POPT_ARG_NONE, NULL, OPT_NO_PROCESS_GROUP, "Don't create a new process group" },
1248 { "daemon", 'D', POPT_ARG_NONE, NULL, OPT_DAEMON, "Become a daemon (default)" },
1249 { "interactive", 'i', POPT_ARG_NONE, NULL, 'i', "Interactive mode" },
1250 { "no-caching", 'n', POPT_ARG_NONE, NULL, 'n', "Disable caching" },
1251 POPT_COMMON_SAMBA
1252 POPT_TABLEEND
1253 };
1254 poptContext pc;
1255 int opt;
1256 TALLOC_CTX *frame;
1257 NTSTATUS status;
1258
1259#ifdef __OS2__
1260 EXCEPTIONREGISTRATIONRECORD ExRegRec;
1261 LoadExceptq(&ExRegRec, NULL, NULL);
1262#endif
1263 /*
1264 * Do this before any other talloc operation
1265 */
1266 talloc_enable_null_tracking();
1267 frame = talloc_stackframe();
1268
1269 /* glibc (?) likes to print "User defined signal 1" and exit if a
1270 SIGUSR[12] is received before a handler is installed */
1271
1272 CatchSignal(SIGUSR1, SIG_IGN);
1273 CatchSignal(SIGUSR2, SIG_IGN);
1274
1275 fault_setup((void (*)(void *))fault_quit );
1276 dump_core_setup("winbindd");
1277
1278 load_case_tables();
1279
1280 /* Initialise for running in non-root mode */
1281
1282 sec_init();
1283
1284 set_remote_machine_name("winbindd", False);
1285
1286 /* Set environment variable so we don't recursively call ourselves.
1287 This may also be useful interactively. */
1288
1289 if ( !winbind_off() ) {
1290 DEBUG(0,("Failed to disable recusive winbindd calls. Exiting.\n"));
1291 exit(1);
1292 }
1293
1294 /* Initialise samba/rpc client stuff */
1295
1296 pc = poptGetContext("winbindd", argc, (const char **)argv, long_options, 0);
1297
1298 while ((opt = poptGetNextOpt(pc)) != -1) {
1299 switch (opt) {
1300 /* Don't become a daemon */
1301 case OPT_DAEMON:
1302 is_daemon = True;
1303 break;
1304 case 'i':
1305 interactive = True;
1306 log_stdout = True;
1307 Fork = False;
1308 break;
1309 case OPT_FORK:
1310 Fork = false;
1311 break;
1312 case OPT_NO_PROCESS_GROUP:
1313 no_process_group = true;
1314 break;
1315 case OPT_LOG_STDOUT:
1316 log_stdout = true;
1317 break;
1318 case 'n':
1319 opt_nocache = true;
1320 break;
1321 default:
1322 d_fprintf(stderr, "\nInvalid option %s: %s\n\n",
1323 poptBadOption(pc, 0), poptStrerror(opt));
1324 poptPrintUsage(pc, stderr, 0);
1325 exit(1);
1326 }
1327 }
1328
1329 /* We call dump_core_setup one more time because the command line can
1330 * set the log file or the log-basename and this will influence where
1331 * cores are stored. Without this call get_dyn_LOGFILEBASE will be
1332 * the default value derived from build's prefix. For EOM this value
1333 * is often not related to the path where winbindd is actually run
1334 * in production.
1335 */
1336 dump_core_setup("winbindd");
1337
1338 if (is_daemon && interactive) {
1339 d_fprintf(stderr,"\nERROR: "
1340 "Option -i|--interactive is not allowed together with -D|--daemon\n\n");
1341 poptPrintUsage(pc, stderr, 0);
1342 exit(1);
1343 }
1344
1345 if (log_stdout && Fork) {
1346 d_fprintf(stderr, "\nERROR: "
1347 "Can't log to stdout (-S) unless daemon is in foreground +(-F) or interactive (-i)\n\n");
1348 poptPrintUsage(pc, stderr, 0);
1349 exit(1);
1350 }
1351
1352 poptFreeContext(pc);
1353
1354 if (!override_logfile) {
1355 char *lfile = NULL;
1356 if (asprintf(&lfile,"%s/log.winbindd",
1357 get_dyn_LOGFILEBASE()) > 0) {
1358 lp_set_logfile(lfile);
1359 SAFE_FREE(lfile);
1360 }
1361 }
1362 if (log_stdout) {
1363 setup_logging("winbindd", DEBUG_STDOUT);
1364 } else {
1365 setup_logging("winbindd", DEBUG_FILE);
1366 }
1367 reopen_logs();
1368
1369 DEBUG(0,("winbindd version %s started.\n", samba_version_string()));
1370 DEBUGADD(0,("%s\n", COPYRIGHT_STARTUP_MESSAGE));
1371#ifdef __OS2__
1372 DEBUGADD(0,("%s\n", maintained_by_string()));
1373#endif
1374
1375 if (!lp_load_initial_only(get_dyn_CONFIGFILE())) {
1376 DEBUG(0, ("error opening config file\n"));
1377 exit(1);
1378 }
1379 /* After parsing the configuration file we setup the core path one more time
1380 * as the log file might have been set in the configuration and cores's
1381 * path is by default basename(lp_logfile()).
1382 */
1383 dump_core_setup("winbindd");
1384
1385 /* Initialise messaging system */
1386
1387 if (winbind_messaging_context() == NULL) {
1388 exit(1);
1389 }
1390
1391 if (!reload_services_file(NULL)) {
1392 DEBUG(0, ("error opening config file\n"));
1393 exit(1);
1394 }
1395
1396 if (!directory_exist(lp_lockdir())) {
1397 mkdir(lp_lockdir(), 0755);
1398 }
1399
1400 /* Setup names. */
1401
1402 if (!init_names())
1403 exit(1);
1404
1405 load_interfaces();
1406
1407 if (!secrets_init()) {
1408
1409 DEBUG(0,("Could not initialize domain trust account secrets. Giving up\n"));
1410 return False;
1411 }
1412
1413 /* Unblock all signals we are interested in as they may have been
1414 blocked by the parent process. */
1415
1416 BlockSignals(False, SIGINT);
1417 BlockSignals(False, SIGQUIT);
1418 BlockSignals(False, SIGTERM);
1419 BlockSignals(False, SIGUSR1);
1420 BlockSignals(False, SIGUSR2);
1421 BlockSignals(False, SIGHUP);
1422 BlockSignals(False, SIGCHLD);
1423
1424 if (!interactive)
1425 become_daemon(Fork, no_process_group, log_stdout);
1426
1427 pidfile_create("winbindd");
1428
1429#if HAVE_SETPGID
1430 /*
1431 * If we're interactive we want to set our own process group for
1432 * signal management.
1433 */
1434 if (interactive && !no_process_group)
1435 setpgid( (pid_t)0, (pid_t)0);
1436#endif
1437
1438 TimeInit();
1439
1440 /* Don't use winbindd_reinit_after_fork here as
1441 * we're just starting up and haven't created any
1442 * winbindd-specific resources we must free yet. JRA.
1443 */
1444
1445 status = reinit_after_fork(winbind_messaging_context(),
1446 winbind_event_context(),
1447 procid_self(), false);
1448 if (!NT_STATUS_IS_OK(status)) {
1449 DEBUG(0,("reinit_after_fork() failed\n"));
1450 exit(1);
1451 }
1452
1453 winbindd_register_handlers();
1454
1455 status = init_system_info();
1456 if (!NT_STATUS_IS_OK(status)) {
1457 DEBUG(1, ("ERROR: failed to setup system user info: %s.\n",
1458 nt_errstr(status)));
1459 exit(1);
1460 }
1461
1462 rpc_lsarpc_init(NULL);
1463 rpc_samr_init(NULL);
1464
1465 winbindd_init_addrchange(NULL, winbind_event_context(),
1466 winbind_messaging_context());
1467
1468 /* setup listen sockets */
1469
1470 if (!winbindd_setup_listeners()) {
1471 DEBUG(0,("winbindd_setup_listeners() failed\n"));
1472 exit(1);
1473 }
1474
1475 TALLOC_FREE(frame);
1476 /* Loop waiting for requests */
1477 while (1) {
1478 frame = talloc_stackframe();
1479
1480 if (tevent_loop_once(winbind_event_context()) == -1) {
1481 DEBUG(1, ("tevent_loop_once() failed: %s\n",
1482 strerror(errno)));
1483 return 1;
1484 }
1485
1486 TALLOC_FREE(frame);
1487 }
1488
1489#ifdef __OS2__
1490 UninstallExceptq(&ExRegRec);
1491#endif
1492 return 0;
1493}
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