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s3: Remove smbd_server_conn from smb1 receive_unlock_msg
[Samba.git] / source3 / winbindd / winbindd_dual.c
blob5dfd123b7cbf5557f92e9226172e26f1ef031aa2
1 /*
2 Unix SMB/CIFS implementation.
3
4 Winbind child daemons
5
6 Copyright (C) Andrew Tridgell 2002
7 Copyright (C) Volker Lendecke 2004,2005
8
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 3 of the License, or
12 (at your option) any later version.
13
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
18
19 You should have received a copy of the GNU General Public License
20 along with this program. If not, see <http://www.gnu.org/licenses/>.
21 */
22
23 /*
24 * We fork a child per domain to be able to act non-blocking in the main
25 * winbind daemon. A domain controller thousands of miles away being being
26 * slow replying with a 10.000 user list should not hold up netlogon calls
27 * that can be handled locally.
28 */
29
30 #include "includes.h"
31 #include "winbindd.h"
32 #include "../../nsswitch/libwbclient/wbc_async.h"
33 #include "librpc/gen_ndr/messaging.h"
34 #include "secrets.h"
35 #include "../lib/util/select.h"
36
37 #undef DBGC_CLASS
38 #define DBGC_CLASS DBGC_WINBIND
39
40 extern bool override_logfile;
41 extern struct winbindd_methods cache_methods;
42
43 /* Read some data from a client connection */
44
45 static NTSTATUS child_read_request(struct winbindd_cli_state *state)
46 {
47 NTSTATUS status;
48
49 /* Read data */
50
51 status = read_data(state->sock, (char *)state->request,
52 sizeof(*state->request));
53
54 if (!NT_STATUS_IS_OK(status)) {
55 DEBUG(3, ("child_read_request: read_data failed: %s\n",
56 nt_errstr(status)));
57 return status;
58 }
59
60 if (state->request->extra_len == 0) {
61 state->request->extra_data.data = NULL;
62 return NT_STATUS_OK;
63 }
64
65 DEBUG(10, ("Need to read %d extra bytes\n", (int)state->request->extra_len));
66
67 state->request->extra_data.data =
68 SMB_MALLOC_ARRAY(char, state->request->extra_len + 1);
69
70 if (state->request->extra_data.data == NULL) {
71 DEBUG(0, ("malloc failed\n"));
72 return NT_STATUS_NO_MEMORY;
73 }
74
75 /* Ensure null termination */
76 state->request->extra_data.data[state->request->extra_len] = '\0';
77
78 status= read_data(state->sock, state->request->extra_data.data,
79 state->request->extra_len);
80
81 if (!NT_STATUS_IS_OK(status)) {
82 DEBUG(0, ("Could not read extra data: %s\n",
83 nt_errstr(status)));
84 }
85 return status;
86 }
87
88 /*
89 * Do winbind child async request. This is not simply wb_simple_trans. We have
90 * to do the queueing ourselves because while a request is queued, the child
91 * might have crashed, and we have to re-fork it in the _trigger function.
92 */
93
94 struct wb_child_request_state {
95 struct tevent_context *ev;
96 struct winbindd_child *child;
97 struct winbindd_request *request;
98 struct winbindd_response *response;
99 };
100
101 static bool fork_domain_child(struct winbindd_child *child);
102
103 static void wb_child_request_trigger(struct tevent_req *req,
104 void *private_data);
105 static void wb_child_request_done(struct tevent_req *subreq);
106
107 struct tevent_req *wb_child_request_send(TALLOC_CTX *mem_ctx,
108 struct tevent_context *ev,
109 struct winbindd_child *child,
110 struct winbindd_request *request)
111 {
112 struct tevent_req *req;
113 struct wb_child_request_state *state;
114
115 req = tevent_req_create(mem_ctx, &state,
116 struct wb_child_request_state);
117 if (req == NULL) {
118 return NULL;
119 }
120
121 state->ev = ev;
122 state->child = child;
123 state->request = request;
124
125 if (!tevent_queue_add(child->queue, ev, req,
126 wb_child_request_trigger, NULL)) {
127 tevent_req_nomem(NULL, req);
128 return tevent_req_post(req, ev);
129 }
130 return req;
131 }
132
133 static void wb_child_request_trigger(struct tevent_req *req,
134 void *private_data)
135 {
136 struct wb_child_request_state *state = tevent_req_data(
137 req, struct wb_child_request_state);
138 struct tevent_req *subreq;
139
140 if ((state->child->pid == 0) && (!fork_domain_child(state->child))) {
141 tevent_req_error(req, errno);
142 return;
143 }
144
145 subreq = wb_simple_trans_send(state, winbind_event_context(), NULL,
146 state->child->sock, state->request);
147 if (tevent_req_nomem(subreq, req)) {
148 return;
149 }
150 tevent_req_set_callback(subreq, wb_child_request_done, req);
151
152 if (!tevent_req_set_endtime(req, state->ev,
153 timeval_current_ofs(300, 0))) {
154 tevent_req_nomem(NULL, req);
155 return;
156 }
157 }
158
159 static void wb_child_request_done(struct tevent_req *subreq)
160 {
161 struct tevent_req *req = tevent_req_callback_data(
162 subreq, struct tevent_req);
163 struct wb_child_request_state *state = tevent_req_data(
164 req, struct wb_child_request_state);
165 int ret, err;
166
167 ret = wb_simple_trans_recv(subreq, state, &state->response, &err);
168 TALLOC_FREE(subreq);
169 if (ret == -1) {
170 tevent_req_error(req, err);
171 return;
172 }
173 tevent_req_done(req);
174 }
175
176 int wb_child_request_recv(struct tevent_req *req, TALLOC_CTX *mem_ctx,
177 struct winbindd_response **presponse, int *err)
178 {
179 struct wb_child_request_state *state = tevent_req_data(
180 req, struct wb_child_request_state);
181
182 if (tevent_req_is_unix_error(req, err)) {
183 return -1;
184 }
185 *presponse = talloc_move(mem_ctx, &state->response);
186 return 0;
187 }
188
189 struct wb_domain_request_state {
190 struct tevent_context *ev;
191 struct winbindd_domain *domain;
192 struct winbindd_request *request;
193 struct winbindd_request *init_req;
194 struct winbindd_response *response;
195 };
196
197 static void wb_domain_request_gotdc(struct tevent_req *subreq);
198 static void wb_domain_request_initialized(struct tevent_req *subreq);
199 static void wb_domain_request_done(struct tevent_req *subreq);
200
201 struct tevent_req *wb_domain_request_send(TALLOC_CTX *mem_ctx,
202 struct tevent_context *ev,
203 struct winbindd_domain *domain,
204 struct winbindd_request *request)
205 {
206 struct tevent_req *req, *subreq;
207 struct wb_domain_request_state *state;
208
209 req = tevent_req_create(mem_ctx, &state,
210 struct wb_domain_request_state);
211 if (req == NULL) {
212 return NULL;
213 }
214
215 if (domain->initialized) {
216 subreq = wb_child_request_send(state, ev, &domain->child,
217 request);
218 if (tevent_req_nomem(subreq, req)) {
219 return tevent_req_post(req, ev);
220 }
221 tevent_req_set_callback(subreq, wb_domain_request_done, req);
222 return req;
223 }
224
225 state->domain = domain;
226 state->ev = ev;
227 state->request = request;
228
229 state->init_req = talloc_zero(state, struct winbindd_request);
230 if (tevent_req_nomem(state->init_req, req)) {
231 return tevent_req_post(req, ev);
232 }
233
234 if (IS_DC || domain->primary || domain->internal) {
235 /* The primary domain has to find the DC name itself */
236 state->init_req->cmd = WINBINDD_INIT_CONNECTION;
237 fstrcpy(state->init_req->domain_name, domain->name);
238 state->init_req->data.init_conn.is_primary =
239 domain->primary ? true : false;
240 fstrcpy(state->init_req->data.init_conn.dcname, "");
241
242 subreq = wb_child_request_send(state, ev, &domain->child,
243 state->init_req);
244 if (tevent_req_nomem(subreq, req)) {
245 return tevent_req_post(req, ev);
246 }
247 tevent_req_set_callback(subreq, wb_domain_request_initialized,
248 req);
249 return req;
250 }
251
252 /*
253 * Ask our DC for a DC name
254 */
255 domain = find_our_domain();
256
257 /* This is *not* the primary domain, let's ask our DC about a DC
258 * name */
259
260 state->init_req->cmd = WINBINDD_GETDCNAME;
261 fstrcpy(state->init_req->domain_name, domain->name);
262
263 subreq = wb_child_request_send(state, ev, &domain->child, request);
264 if (tevent_req_nomem(subreq, req)) {
265 return tevent_req_post(req, ev);
266 }
267 tevent_req_set_callback(subreq, wb_domain_request_gotdc, req);
268 return req;
269 }
270
271 static void wb_domain_request_gotdc(struct tevent_req *subreq)
272 {
273 struct tevent_req *req = tevent_req_callback_data(
274 subreq, struct tevent_req);
275 struct wb_domain_request_state *state = tevent_req_data(
276 req, struct wb_domain_request_state);
277 struct winbindd_response *response;
278 int ret, err;
279
280 ret = wb_child_request_recv(subreq, talloc_tos(), &response, &err);
281 TALLOC_FREE(subreq);
282 if (ret == -1) {
283 tevent_req_error(req, err);
284 return;
285 }
286 state->init_req->cmd = WINBINDD_INIT_CONNECTION;
287 fstrcpy(state->init_req->domain_name, state->domain->name);
288 state->init_req->data.init_conn.is_primary = False;
289 fstrcpy(state->init_req->data.init_conn.dcname,
290 response->data.dc_name);
291
292 TALLOC_FREE(response);
293
294 subreq = wb_child_request_send(state, state->ev, &state->domain->child,
295 state->init_req);
296 if (tevent_req_nomem(subreq, req)) {
297 return;
298 }
299 tevent_req_set_callback(subreq, wb_domain_request_initialized, req);
300 }
301
302 static void wb_domain_request_initialized(struct tevent_req *subreq)
303 {
304 struct tevent_req *req = tevent_req_callback_data(
305 subreq, struct tevent_req);
306 struct wb_domain_request_state *state = tevent_req_data(
307 req, struct wb_domain_request_state);
308 struct winbindd_response *response;
309 int ret, err;
310
311 ret = wb_child_request_recv(subreq, talloc_tos(), &response, &err);
312 TALLOC_FREE(subreq);
313 if (ret == -1) {
314 tevent_req_error(req, err);
315 return;
316 }
317
318 if (!string_to_sid(&state->domain->sid,
319 response->data.domain_info.sid)) {
320 DEBUG(1,("init_child_recv: Could not convert sid %s "
321 "from string\n", response->data.domain_info.sid));
322 tevent_req_error(req, EINVAL);
323 return;
324 }
325 fstrcpy(state->domain->name, response->data.domain_info.name);
326 fstrcpy(state->domain->alt_name, response->data.domain_info.alt_name);
327 state->domain->native_mode = response->data.domain_info.native_mode;
328 state->domain->active_directory =
329 response->data.domain_info.active_directory;
330 state->domain->initialized = true;
331
332 TALLOC_FREE(response);
333
334 subreq = wb_child_request_send(state, state->ev, &state->domain->child,
335 state->request);
336 if (tevent_req_nomem(subreq, req)) {
337 return;
338 }
339 tevent_req_set_callback(subreq, wb_domain_request_done, req);
340 }
341
342 static void wb_domain_request_done(struct tevent_req *subreq)
343 {
344 struct tevent_req *req = tevent_req_callback_data(
345 subreq, struct tevent_req);
346 struct wb_domain_request_state *state = tevent_req_data(
347 req, struct wb_domain_request_state);
348 int ret, err;
349
350 ret = wb_child_request_recv(subreq, talloc_tos(), &state->response,
351 &err);
352 TALLOC_FREE(subreq);
353 if (ret == -1) {
354 tevent_req_error(req, err);
355 return;
356 }
357 tevent_req_done(req);
358 }
359
360 int wb_domain_request_recv(struct tevent_req *req, TALLOC_CTX *mem_ctx,
361 struct winbindd_response **presponse, int *err)
362 {
363 struct wb_domain_request_state *state = tevent_req_data(
364 req, struct wb_domain_request_state);
365
366 if (tevent_req_is_unix_error(req, err)) {
367 return -1;
368 }
369 *presponse = talloc_move(mem_ctx, &state->response);
370 return 0;
371 }
372
373 static void child_process_request(struct winbindd_child *child,
374 struct winbindd_cli_state *state)
375 {
376 struct winbindd_domain *domain = child->domain;
377 const struct winbindd_child_dispatch_table *table = child->table;
378
379 /* Free response data - we may be interrupted and receive another
380 command before being able to send this data off. */
381
382 state->response->result = WINBINDD_ERROR;
383 state->response->length = sizeof(struct winbindd_response);
384
385 /* as all requests in the child are sync, we can use talloc_tos() */
386 state->mem_ctx = talloc_tos();
387
388 /* Process command */
389
390 for (; table->name; table++) {
391 if (state->request->cmd == table->struct_cmd) {
392 DEBUG(10,("child_process_request: request fn %s\n",
393 table->name));
394 state->response->result = table->struct_fn(domain, state);
395 return;
396 }
397 }
398
399 DEBUG(1 ,("child_process_request: unknown request fn number %d\n",
400 (int)state->request->cmd));
401 state->response->result = WINBINDD_ERROR;
402 }
403
404 void setup_child(struct winbindd_domain *domain, struct winbindd_child *child,
405 const struct winbindd_child_dispatch_table *table,
406 const char *logprefix,
407 const char *logname)
408 {
409 if (logprefix && logname) {
410 char *logbase = NULL;
411
412 if (*lp_logfile()) {
413 char *end = NULL;
414
415 if (asprintf(&logbase, "%s", lp_logfile()) < 0) {
416 smb_panic("Internal error: asprintf failed");
417 }
418
419 if ((end = strrchr_m(logbase, '/'))) {
420 *end = '\0';
421 }
422 } else {
423 if (asprintf(&logbase, "%s", get_dyn_LOGFILEBASE()) < 0) {
424 smb_panic("Internal error: asprintf failed");
425 }
426 }
427
428 if (asprintf(&child->logfilename, "%s/%s-%s",
429 logbase, logprefix, logname) < 0) {
430 SAFE_FREE(logbase);
431 smb_panic("Internal error: asprintf failed");
432 }
433
434 SAFE_FREE(logbase);
435 } else {
436 smb_panic("Internal error: logprefix == NULL && "
437 "logname == NULL");
438 }
439
440 child->domain = domain;
441 child->table = table;
442 child->queue = tevent_queue_create(NULL, "winbind_child");
443 SMB_ASSERT(child->queue != NULL);
444 child->binding_handle = wbint_binding_handle(NULL, domain, child);
445 SMB_ASSERT(child->binding_handle != NULL);
446 }
447
448 static struct winbindd_child *winbindd_children = NULL;
449
450 void winbind_child_died(pid_t pid)
451 {
452 struct winbindd_child *child;
453
454 for (child = winbindd_children; child != NULL; child = child->next) {
455 if (child->pid == pid) {
456 break;
457 }
458 }
459
460 if (child == NULL) {
461 DEBUG(5, ("Already reaped child %u died\n", (unsigned int)pid));
462 return;
463 }
464
465 /* This will be re-added in fork_domain_child() */
466
467 DLIST_REMOVE(winbindd_children, child);
468
469 close(child->sock);
470 child->sock = -1;
471 child->pid = 0;
472 }
473
474 /* Ensure any negative cache entries with the netbios or realm names are removed. */
475
476 void winbindd_flush_negative_conn_cache(struct winbindd_domain *domain)
477 {
478 flush_negative_conn_cache_for_domain(domain->name);
479 if (*domain->alt_name) {
480 flush_negative_conn_cache_for_domain(domain->alt_name);
481 }
482 }
483
484 /*
485 * Parent winbindd process sets its own debug level first and then
486 * sends a message to all the winbindd children to adjust their debug
487 * level to that of parents.
488 */
489
490 void winbind_msg_debug(struct messaging_context *msg_ctx,
491 void *private_data,
492 uint32_t msg_type,
493 struct server_id server_id,
494 DATA_BLOB *data)
495 {
496 struct winbindd_child *child;
497
498 DEBUG(10,("winbind_msg_debug: got debug message.\n"));
499
500 debug_message(msg_ctx, private_data, MSG_DEBUG, server_id, data);
501
502 for (child = winbindd_children; child != NULL; child = child->next) {
503
504 DEBUG(10,("winbind_msg_debug: sending message to pid %u.\n",
505 (unsigned int)child->pid));
506
507 messaging_send_buf(msg_ctx, pid_to_procid(child->pid),
508 MSG_DEBUG,
509 data->data,
510 strlen((char *) data->data) + 1);
511 }
512 }
513
514 /* Set our domains as offline and forward the offline message to our children. */
515
516 void winbind_msg_offline(struct messaging_context *msg_ctx,
517 void *private_data,
518 uint32_t msg_type,
519 struct server_id server_id,
520 DATA_BLOB *data)
521 {
522 struct winbindd_child *child;
523 struct winbindd_domain *domain;
524
525 DEBUG(10,("winbind_msg_offline: got offline message.\n"));
526
527 if (!lp_winbind_offline_logon()) {
528 DEBUG(10,("winbind_msg_offline: rejecting offline message.\n"));
529 return;
530 }
531
532 /* Set our global state as offline. */
533 if (!set_global_winbindd_state_offline()) {
534 DEBUG(10,("winbind_msg_offline: offline request failed.\n"));
535 return;
536 }
537
538 /* Set all our domains as offline. */
539 for (domain = domain_list(); domain; domain = domain->next) {
540 if (domain->internal) {
541 continue;
542 }
543 DEBUG(5,("winbind_msg_offline: marking %s offline.\n", domain->name));
544 set_domain_offline(domain);
545 }
546
547 for (child = winbindd_children; child != NULL; child = child->next) {
548 /* Don't send message to internal children. We've already
549 done so above. */
550 if (!child->domain || winbindd_internal_child(child)) {
551 continue;
552 }
553
554 /* Or internal domains (this should not be possible....) */
555 if (child->domain->internal) {
556 continue;
557 }
558
559 /* Each winbindd child should only process requests for one domain - make sure
560 we only set it online / offline for that domain. */
561
562 DEBUG(10,("winbind_msg_offline: sending message to pid %u for domain %s.\n",
563 (unsigned int)child->pid, domain->name ));
564
565 messaging_send_buf(msg_ctx, pid_to_procid(child->pid),
566 MSG_WINBIND_OFFLINE,
567 (uint8 *)child->domain->name,
568 strlen(child->domain->name)+1);
569 }
570 }
571
572 /* Set our domains as online and forward the online message to our children. */
573
574 void winbind_msg_online(struct messaging_context *msg_ctx,
575 void *private_data,
576 uint32_t msg_type,
577 struct server_id server_id,
578 DATA_BLOB *data)
579 {
580 struct winbindd_child *child;
581 struct winbindd_domain *domain;
582
583 DEBUG(10,("winbind_msg_online: got online message.\n"));
584
585 if (!lp_winbind_offline_logon()) {
586 DEBUG(10,("winbind_msg_online: rejecting online message.\n"));
587 return;
588 }
589
590 /* Set our global state as online. */
591 set_global_winbindd_state_online();
592
593 smb_nscd_flush_user_cache();
594 smb_nscd_flush_group_cache();
595
596 /* Set all our domains as online. */
597 for (domain = domain_list(); domain; domain = domain->next) {
598 if (domain->internal) {
599 continue;
600 }
601 DEBUG(5,("winbind_msg_online: requesting %s to go online.\n", domain->name));
602
603 winbindd_flush_negative_conn_cache(domain);
604 set_domain_online_request(domain);
605
606 /* Send an online message to the idmap child when our
607 primary domain comes back online */
608
609 if ( domain->primary ) {
610 struct winbindd_child *idmap = idmap_child();
611
612 if ( idmap->pid != 0 ) {
613 messaging_send_buf(msg_ctx,
614 pid_to_procid(idmap->pid),
615 MSG_WINBIND_ONLINE,
616 (uint8 *)domain->name,
617 strlen(domain->name)+1);
618 }
619 }
620 }
621
622 for (child = winbindd_children; child != NULL; child = child->next) {
623 /* Don't send message to internal childs. */
624 if (!child->domain || winbindd_internal_child(child)) {
625 continue;
626 }
627
628 /* Or internal domains (this should not be possible....) */
629 if (child->domain->internal) {
630 continue;
631 }
632
633 /* Each winbindd child should only process requests for one domain - make sure
634 we only set it online / offline for that domain. */
635
636 DEBUG(10,("winbind_msg_online: sending message to pid %u for domain %s.\n",
637 (unsigned int)child->pid, child->domain->name ));
638
639 messaging_send_buf(msg_ctx, pid_to_procid(child->pid),
640 MSG_WINBIND_ONLINE,
641 (uint8 *)child->domain->name,
642 strlen(child->domain->name)+1);
643 }
644 }
645
646 static const char *collect_onlinestatus(TALLOC_CTX *mem_ctx)
647 {
648 struct winbindd_domain *domain;
649 char *buf = NULL;
650
651 if ((buf = talloc_asprintf(mem_ctx, "global:%s ",
652 get_global_winbindd_state_offline() ?
653 "Offline":"Online")) == NULL) {
654 return NULL;
655 }
656
657 for (domain = domain_list(); domain; domain = domain->next) {
658 if ((buf = talloc_asprintf_append_buffer(buf, "%s:%s ",
659 domain->name,
660 domain->online ?
661 "Online":"Offline")) == NULL) {
662 return NULL;
663 }
664 }
665
666 buf = talloc_asprintf_append_buffer(buf, "\n");
667
668 DEBUG(5,("collect_onlinestatus: %s", buf));
669
670 return buf;
671 }
672
673 void winbind_msg_onlinestatus(struct messaging_context *msg_ctx,
674 void *private_data,
675 uint32_t msg_type,
676 struct server_id server_id,
677 DATA_BLOB *data)
678 {
679 TALLOC_CTX *mem_ctx;
680 const char *message;
681 struct server_id *sender;
682
683 DEBUG(5,("winbind_msg_onlinestatus received.\n"));
684
685 if (!data->data) {
686 return;
687 }
688
689 sender = (struct server_id *)data->data;
690
691 mem_ctx = talloc_init("winbind_msg_onlinestatus");
692 if (mem_ctx == NULL) {
693 return;
694 }
695
696 message = collect_onlinestatus(mem_ctx);
697 if (message == NULL) {
698 talloc_destroy(mem_ctx);
699 return;
700 }
701
702 messaging_send_buf(msg_ctx, *sender, MSG_WINBIND_ONLINESTATUS,
703 (uint8 *)message, strlen(message) + 1);
704
705 talloc_destroy(mem_ctx);
706 }
707
708 void winbind_msg_dump_event_list(struct messaging_context *msg_ctx,
709 void *private_data,
710 uint32_t msg_type,
711 struct server_id server_id,
712 DATA_BLOB *data)
713 {
714 struct winbindd_child *child;
715
716 DEBUG(10,("winbind_msg_dump_event_list received\n"));
717
718 dump_event_list(winbind_event_context());
719
720 for (child = winbindd_children; child != NULL; child = child->next) {
721
722 DEBUG(10,("winbind_msg_dump_event_list: sending message to pid %u\n",
723 (unsigned int)child->pid));
724
725 messaging_send_buf(msg_ctx, pid_to_procid(child->pid),
726 MSG_DUMP_EVENT_LIST,
727 NULL, 0);
728 }
729
730 }
731
732 void winbind_msg_dump_domain_list(struct messaging_context *msg_ctx,
733 void *private_data,
734 uint32_t msg_type,
735 struct server_id server_id,
736 DATA_BLOB *data)
737 {
738 TALLOC_CTX *mem_ctx;
739 const char *message = NULL;
740 struct server_id *sender = NULL;
741 const char *domain = NULL;
742 char *s = NULL;
743 NTSTATUS status;
744 struct winbindd_domain *dom = NULL;
745
746 DEBUG(5,("winbind_msg_dump_domain_list received.\n"));
747
748 if (!data || !data->data) {
749 return;
750 }
751
752 if (data->length < sizeof(struct server_id)) {
753 return;
754 }
755
756 mem_ctx = talloc_init("winbind_msg_dump_domain_list");
757 if (!mem_ctx) {
758 return;
759 }
760
761 sender = (struct server_id *)data->data;
762 if (data->length > sizeof(struct server_id)) {
763 domain = (const char *)data->data+sizeof(struct server_id);
764 }
765
766 if (domain) {
767
768 DEBUG(5,("winbind_msg_dump_domain_list for domain: %s\n",
769 domain));
770
771 message = NDR_PRINT_STRUCT_STRING(mem_ctx, winbindd_domain,
772 find_domain_from_name_noinit(domain));
773 if (!message) {
774 talloc_destroy(mem_ctx);
775 return;
776 }
777
778 messaging_send_buf(msg_ctx, *sender,
779 MSG_WINBIND_DUMP_DOMAIN_LIST,
780 (uint8_t *)message, strlen(message) + 1);
781
782 talloc_destroy(mem_ctx);
783
784 return;
785 }
786
787 DEBUG(5,("winbind_msg_dump_domain_list all domains\n"));
788
789 for (dom = domain_list(); dom; dom=dom->next) {
790 message = NDR_PRINT_STRUCT_STRING(mem_ctx, winbindd_domain, dom);
791 if (!message) {
792 talloc_destroy(mem_ctx);
793 return;
794 }
795
796 s = talloc_asprintf_append(s, "%s\n", message);
797 if (!s) {
798 talloc_destroy(mem_ctx);
799 return;
800 }
801 }
802
803 status = messaging_send_buf(msg_ctx, *sender,
804 MSG_WINBIND_DUMP_DOMAIN_LIST,
805 (uint8_t *)s, strlen(s) + 1);
806 if (!NT_STATUS_IS_OK(status)) {
807 DEBUG(0,("failed to send message: %s\n",
808 nt_errstr(status)));
809 }
810
811 talloc_destroy(mem_ctx);
812 }
813
814 static void account_lockout_policy_handler(struct event_context *ctx,
815 struct timed_event *te,
816 struct timeval now,
817 void *private_data)
818 {
819 struct winbindd_child *child =
820 (struct winbindd_child *)private_data;
821 TALLOC_CTX *mem_ctx = NULL;
822 struct winbindd_methods *methods;
823 struct samr_DomInfo12 lockout_policy;
824 NTSTATUS result;
825
826 DEBUG(10,("account_lockout_policy_handler called\n"));
827
828 TALLOC_FREE(child->lockout_policy_event);
829
830 if ( !winbindd_can_contact_domain( child->domain ) ) {
831 DEBUG(10,("account_lockout_policy_handler: Removing myself since I "
832 "do not have an incoming trust to domain %s\n",
833 child->domain->name));
834
835 return;
836 }
837
838 methods = child->domain->methods;
839
840 mem_ctx = talloc_init("account_lockout_policy_handler ctx");
841 if (!mem_ctx) {
842 result = NT_STATUS_NO_MEMORY;
843 } else {
844 result = methods->lockout_policy(child->domain, mem_ctx, &lockout_policy);
845 }
846 TALLOC_FREE(mem_ctx);
847
848 if (!NT_STATUS_IS_OK(result)) {
849 DEBUG(10,("account_lockout_policy_handler: lockout_policy failed error %s\n",
850 nt_errstr(result)));
851 }
852
853 child->lockout_policy_event = event_add_timed(winbind_event_context(), NULL,
854 timeval_current_ofs(3600, 0),
855 account_lockout_policy_handler,
856 child);
857 }
858
859 static time_t get_machine_password_timeout(void)
860 {
861 /* until we have gpo support use lp setting */
862 return lp_machine_password_timeout();
863 }
864
865 static bool calculate_next_machine_pwd_change(const char *domain,
866 struct timeval *t)
867 {
868 time_t pass_last_set_time;
869 time_t timeout;
870 time_t next_change;
871 struct timeval tv;
872 char *pw;
873
874 pw = secrets_fetch_machine_password(domain,
875 &pass_last_set_time,
876 NULL);
877
878 if (pw == NULL) {
879 DEBUG(0,("cannot fetch own machine password ????"));
880 return false;
881 }
882
883 SAFE_FREE(pw);
884
885 timeout = get_machine_password_timeout();
886 if (timeout == 0) {
887 DEBUG(10,("machine password never expires\n"));
888 return false;
889 }
890
891 tv.tv_sec = pass_last_set_time;
892 DEBUG(10, ("password last changed %s\n",
893 timeval_string(talloc_tos(), &tv, false)));
894 tv.tv_sec += timeout;
895 DEBUGADD(10, ("password valid until %s\n",
896 timeval_string(talloc_tos(), &tv, false)));
897
898 if (time(NULL) < (pass_last_set_time + timeout)) {
899 next_change = pass_last_set_time + timeout;
900 DEBUG(10,("machine password still valid until: %s\n",
901 http_timestring(talloc_tos(), next_change)));
902 *t = timeval_set(next_change, 0);
903
904 if (lp_clustering()) {
905 uint8_t randbuf;
906 /*
907 * When having a cluster, we have several
908 * winbinds racing for the password change. In
909 * the machine_password_change_handler()
910 * function we check if someone else was
911 * faster when the event triggers. We add a
912 * 255-second random delay here, so that we
913 * don't run to change the password at the
914 * exact same moment.
915 */
916 generate_random_buffer(&randbuf, sizeof(randbuf));
917 DEBUG(10, ("adding %d seconds randomness\n",
918 (int)randbuf));
919 t->tv_sec += randbuf;
920 }
921 return true;
922 }
923
924 DEBUG(10,("machine password expired, needs immediate change\n"));
925
926 *t = timeval_zero();
927
928 return true;
929 }
930
931 static void machine_password_change_handler(struct event_context *ctx,
932 struct timed_event *te,
933 struct timeval now,
934 void *private_data)
935 {
936 struct winbindd_child *child =
937 (struct winbindd_child *)private_data;
938 struct rpc_pipe_client *netlogon_pipe = NULL;
939 TALLOC_CTX *frame;
940 NTSTATUS result;
941 struct timeval next_change;
942
943 DEBUG(10,("machine_password_change_handler called\n"));
944
945 TALLOC_FREE(child->machine_password_change_event);
946
947 if (!calculate_next_machine_pwd_change(child->domain->name,
948 &next_change)) {
949 DEBUG(10, ("calculate_next_machine_pwd_change failed\n"));
950 return;
951 }
952
953 DEBUG(10, ("calculate_next_machine_pwd_change returned %s\n",
954 timeval_string(talloc_tos(), &next_change, false)));
955
956 if (!timeval_expired(&next_change)) {
957 DEBUG(10, ("Someone else has already changed the pw\n"));
958 goto done;
959 }
960
961 if (!winbindd_can_contact_domain(child->domain)) {
962 DEBUG(10,("machine_password_change_handler: Removing myself since I "
963 "do not have an incoming trust to domain %s\n",
964 child->domain->name));
965 return;
966 }
967
968 result = cm_connect_netlogon(child->domain, &netlogon_pipe);
969 if (!NT_STATUS_IS_OK(result)) {
970 DEBUG(10,("machine_password_change_handler: "
971 "failed to connect netlogon pipe: %s\n",
972 nt_errstr(result)));
973 return;
974 }
975
976 frame = talloc_stackframe();
977
978 result = trust_pw_find_change_and_store_it(netlogon_pipe,
979 frame,
980 child->domain->name);
981 TALLOC_FREE(frame);
982
983 DEBUG(10, ("machine_password_change_handler: "
984 "trust_pw_find_change_and_store_it returned %s\n",
985 nt_errstr(result)));
986
987 if (NT_STATUS_EQUAL(result, NT_STATUS_ACCESS_DENIED) ) {
988 DEBUG(3,("machine_password_change_handler: password set returned "
989 "ACCESS_DENIED. Maybe the trust account "
990 "password was changed and we didn't know it. "
991 "Killing connections to domain %s\n",
992 child->domain->name));
993 TALLOC_FREE(child->domain->conn.netlogon_pipe);
994 }
995
996 if (!calculate_next_machine_pwd_change(child->domain->name,
997 &next_change)) {
998 DEBUG(10, ("calculate_next_machine_pwd_change failed\n"));
999 return;
1000 }
1001
1002 DEBUG(10, ("calculate_next_machine_pwd_change returned %s\n",
1003 timeval_string(talloc_tos(), &next_change, false)));
1004
1005 if (!NT_STATUS_IS_OK(result)) {
1006 struct timeval tmp;
1007 /*
1008 * In case of failure, give the DC a minute to recover
1009 */
1010 tmp = timeval_current_ofs(60, 0);
1011 next_change = timeval_max(&next_change, &tmp);
1012 }
1013
1014 done:
1015 child->machine_password_change_event = event_add_timed(winbind_event_context(), NULL,
1016 next_change,
1017 machine_password_change_handler,
1018 child);
1019 }
1020
1021 /* Deal with a request to go offline. */
1022
1023 static void child_msg_offline(struct messaging_context *msg,
1024 void *private_data,
1025 uint32_t msg_type,
1026 struct server_id server_id,
1027 DATA_BLOB *data)
1028 {
1029 struct winbindd_domain *domain;
1030 struct winbindd_domain *primary_domain = NULL;
1031 const char *domainname = (const char *)data->data;
1032
1033 if (data->data == NULL || data->length == 0) {
1034 return;
1035 }
1036
1037 DEBUG(5,("child_msg_offline received for domain %s.\n", domainname));
1038
1039 if (!lp_winbind_offline_logon()) {
1040 DEBUG(10,("child_msg_offline: rejecting offline message.\n"));
1041 return;
1042 }
1043
1044 primary_domain = find_our_domain();
1045
1046 /* Mark the requested domain offline. */
1047
1048 for (domain = domain_list(); domain; domain = domain->next) {
1049 if (domain->internal) {
1050 continue;
1051 }
1052 if (strequal(domain->name, domainname)) {
1053 DEBUG(5,("child_msg_offline: marking %s offline.\n", domain->name));
1054 set_domain_offline(domain);
1055 /* we are in the trusted domain, set the primary domain
1056 * offline too */
1057 if (domain != primary_domain) {
1058 set_domain_offline(primary_domain);
1059 }
1060 }
1061 }
1062 }
1063
1064 /* Deal with a request to go online. */
1065
1066 static void child_msg_online(struct messaging_context *msg,
1067 void *private_data,
1068 uint32_t msg_type,
1069 struct server_id server_id,
1070 DATA_BLOB *data)
1071 {
1072 struct winbindd_domain *domain;
1073 struct winbindd_domain *primary_domain = NULL;
1074 const char *domainname = (const char *)data->data;
1075
1076 if (data->data == NULL || data->length == 0) {
1077 return;
1078 }
1079
1080 DEBUG(5,("child_msg_online received for domain %s.\n", domainname));
1081
1082 if (!lp_winbind_offline_logon()) {
1083 DEBUG(10,("child_msg_online: rejecting online message.\n"));
1084 return;
1085 }
1086
1087 primary_domain = find_our_domain();
1088
1089 /* Set our global state as online. */
1090 set_global_winbindd_state_online();
1091
1092 /* Try and mark everything online - delete any negative cache entries
1093 to force a reconnect now. */
1094
1095 for (domain = domain_list(); domain; domain = domain->next) {
1096 if (domain->internal) {
1097 continue;
1098 }
1099 if (strequal(domain->name, domainname)) {
1100 DEBUG(5,("child_msg_online: requesting %s to go online.\n", domain->name));
1101 winbindd_flush_negative_conn_cache(domain);
1102 set_domain_online_request(domain);
1103
1104 /* we can be in trusted domain, which will contact primary domain
1105 * we have to bring primary domain online in trusted domain process
1106 * see, winbindd_dual_pam_auth() --> winbindd_dual_pam_auth_samlogon()
1107 * --> contact_domain = find_our_domain()
1108 * */
1109 if (domain != primary_domain) {
1110 winbindd_flush_negative_conn_cache(primary_domain);
1111 set_domain_online_request(primary_domain);
1112 }
1113 }
1114 }
1115 }
1116
1117 static void child_msg_dump_event_list(struct messaging_context *msg,
1118 void *private_data,
1119 uint32_t msg_type,
1120 struct server_id server_id,
1121 DATA_BLOB *data)
1122 {
1123 DEBUG(5,("child_msg_dump_event_list received\n"));
1124
1125 dump_event_list(winbind_event_context());
1126 }
1127
1128 bool winbindd_reinit_after_fork(const char *logfilename)
1129 {
1130 struct winbindd_domain *domain;
1131 struct winbindd_child *cl;
1132 NTSTATUS status;
1133
1134 status = reinit_after_fork(
1135 winbind_messaging_context(),
1136 winbind_event_context(),
1137 procid_self(),
1138 true);
1139 if (!NT_STATUS_IS_OK(status)) {
1140 DEBUG(0,("reinit_after_fork() failed\n"));
1141 return false;
1142 }
1143
1144 close_conns_after_fork();
1145
1146 if (!override_logfile && logfilename) {
1147 lp_set_logfile(logfilename);
1148 reopen_logs();
1149 }
1150
1151 if (!winbindd_setup_sig_term_handler(false))
1152 return false;
1153 if (!winbindd_setup_sig_hup_handler(override_logfile ? NULL :
1154 logfilename))
1155 return false;
1156
1157 /* Stop zombies in children */
1158 CatchChild();
1159
1160 /* Don't handle the same messages as our parent. */
1161 messaging_deregister(winbind_messaging_context(),
1162 MSG_SMB_CONF_UPDATED, NULL);
1163 messaging_deregister(winbind_messaging_context(),
1164 MSG_SHUTDOWN, NULL);
1165 messaging_deregister(winbind_messaging_context(),
1166 MSG_WINBIND_OFFLINE, NULL);
1167 messaging_deregister(winbind_messaging_context(),
1168 MSG_WINBIND_ONLINE, NULL);
1169 messaging_deregister(winbind_messaging_context(),
1170 MSG_WINBIND_ONLINESTATUS, NULL);
1171 messaging_deregister(winbind_messaging_context(),
1172 MSG_DUMP_EVENT_LIST, NULL);
1173 messaging_deregister(winbind_messaging_context(),
1174 MSG_WINBIND_DUMP_DOMAIN_LIST, NULL);
1175 messaging_deregister(winbind_messaging_context(),
1176 MSG_DEBUG, NULL);
1177
1178 /* We have destroyed all events in the winbindd_event_context
1179 * in reinit_after_fork(), so clean out all possible pending
1180 * event pointers. */
1181
1182 /* Deal with check_online_events. */
1183
1184 for (domain = domain_list(); domain; domain = domain->next) {
1185 TALLOC_FREE(domain->check_online_event);
1186 }
1187
1188 /* Ensure we're not handling a credential cache event inherited
1189 * from our parent. */
1190
1191 ccache_remove_all_after_fork();
1192
1193 /* Destroy all possible events in child list. */
1194 for (cl = winbindd_children; cl != NULL; cl = cl->next) {
1195 TALLOC_FREE(cl->lockout_policy_event);
1196 TALLOC_FREE(cl->machine_password_change_event);
1197
1198 /* Children should never be able to send
1199 * each other messages, all messages must
1200 * go through the parent.
1201 */
1202 cl->pid = (pid_t)0;
1203 }
1204 /*
1205 * This is a little tricky, children must not
1206 * send an MSG_WINBIND_ONLINE message to idmap_child().
1207 * If we are in a child of our primary domain or
1208 * in the process created by fork_child_dc_connect(),
1209 * and the primary domain cannot go online,
1210 * fork_child_dc_connection() sends MSG_WINBIND_ONLINE
1211 * periodically to idmap_child().
1212 *
1213 * The sequence is, fork_child_dc_connect() ---> getdcs() --->
1214 * get_dc_name_via_netlogon() ---> cm_connect_netlogon()
1215 * ---> init_dc_connection() ---> cm_open_connection --->
1216 * set_domain_online(), sends MSG_WINBIND_ONLINE to
1217 * idmap_child(). Disallow children sending messages
1218 * to each other, all messages must go through the parent.
1219 */
1220 cl = idmap_child();
1221 cl->pid = (pid_t)0;
1222
1223 return true;
1224 }
1225
1226 /*
1227 * In a child there will be only one domain, reference that here.
1228 */
1229 static struct winbindd_domain *child_domain;
1230
1231 struct winbindd_domain *wb_child_domain(void)
1232 {
1233 return child_domain;
1234 }
1235
1236 static bool fork_domain_child(struct winbindd_child *child)
1237 {
1238 int fdpair[2];
1239 struct winbindd_cli_state state;
1240 struct winbindd_request request;
1241 struct winbindd_response response;
1242 struct winbindd_domain *primary_domain = NULL;
1243
1244 if (child->domain) {
1245 DEBUG(10, ("fork_domain_child called for domain '%s'\n",
1246 child->domain->name));
1247 } else {
1248 DEBUG(10, ("fork_domain_child called without domain.\n"));
1249 }
1250
1251 if (socketpair(AF_UNIX, SOCK_STREAM, 0, fdpair) != 0) {
1252 DEBUG(0, ("Could not open child pipe: %s\n",
1253 strerror(errno)));
1254 return False;
1255 }
1256
1257 ZERO_STRUCT(state);
1258 state.pid = sys_getpid();
1259 state.request = &request;
1260 state.response = &response;
1261
1262 child->pid = sys_fork();
1263
1264 if (child->pid == -1) {
1265 DEBUG(0, ("Could not fork: %s\n", strerror(errno)));
1266 return False;
1267 }
1268
1269 if (child->pid != 0) {
1270 /* Parent */
1271 close(fdpair[0]);
1272 child->next = child->prev = NULL;
1273 DLIST_ADD(winbindd_children, child);
1274 child->sock = fdpair[1];
1275 return True;
1276 }
1277
1278 /* Child */
1279 child_domain = child->domain;
1280
1281 DEBUG(10, ("Child process %d\n", (int)sys_getpid()));
1282
1283 state.sock = fdpair[0];
1284 close(fdpair[1]);
1285
1286 if (!winbindd_reinit_after_fork(child->logfilename)) {
1287 _exit(0);
1288 }
1289
1290 /* Handle online/offline messages. */
1291 messaging_register(winbind_messaging_context(), NULL,
1292 MSG_WINBIND_OFFLINE, child_msg_offline);
1293 messaging_register(winbind_messaging_context(), NULL,
1294 MSG_WINBIND_ONLINE, child_msg_online);
1295 messaging_register(winbind_messaging_context(), NULL,
1296 MSG_DUMP_EVENT_LIST, child_msg_dump_event_list);
1297 messaging_register(winbind_messaging_context(), NULL,
1298 MSG_DEBUG, debug_message);
1299 messaging_register(winbind_messaging_context(), NULL,
1300 MSG_WINBIND_IP_DROPPED,
1301 winbind_msg_ip_dropped);
1302
1303
1304 primary_domain = find_our_domain();
1305
1306 if (primary_domain == NULL) {
1307 smb_panic("no primary domain found");
1308 }
1309
1310 /* It doesn't matter if we allow cache login,
1311 * try to bring domain online after fork. */
1312 if ( child->domain ) {
1313 child->domain->startup = True;
1314 child->domain->startup_time = time_mono(NULL);
1315 /* we can be in primary domain or in trusted domain
1316 * If we are in trusted domain, set the primary domain
1317 * in start-up mode */
1318 if (!(child->domain->internal)) {
1319 set_domain_online_request(child->domain);
1320 if (!(child->domain->primary)) {
1321 primary_domain->startup = True;
1322 primary_domain->startup_time = time_mono(NULL);
1323 set_domain_online_request(primary_domain);
1324 }
1325 }
1326 }
1327
1328 /*
1329 * We are in idmap child, make sure that we set the
1330 * check_online_event to bring primary domain online.
1331 */
1332 if (child == idmap_child()) {
1333 set_domain_online_request(primary_domain);
1334 }
1335
1336 /* We might be in the idmap child...*/
1337 if (child->domain && !(child->domain->internal) &&
1338 lp_winbind_offline_logon()) {
1339
1340 set_domain_online_request(child->domain);
1341
1342 if (primary_domain && (primary_domain != child->domain)) {
1343 /* We need to talk to the primary
1344 * domain as well as the trusted
1345 * domain inside a trusted domain
1346 * child.
1347 * See the code in :
1348 * set_dc_type_and_flags_trustinfo()
1349 * for details.
1350 */
1351 set_domain_online_request(primary_domain);
1352 }
1353
1354 child->lockout_policy_event = event_add_timed(
1355 winbind_event_context(), NULL, timeval_zero(),
1356 account_lockout_policy_handler,
1357 child);
1358 }
1359
1360 if (child->domain && child->domain->primary &&
1361 !USE_KERBEROS_KEYTAB &&
1362 lp_server_role() == ROLE_DOMAIN_MEMBER) {
1363
1364 struct timeval next_change;
1365
1366 if (calculate_next_machine_pwd_change(child->domain->name,
1367 &next_change)) {
1368 child->machine_password_change_event = event_add_timed(
1369 winbind_event_context(), NULL, next_change,
1370 machine_password_change_handler,
1371 child);
1372 }
1373 }
1374
1375 while (1) {
1376
1377 int ret = 0;
1378 fd_set r_fds;
1379 fd_set w_fds;
1380 int maxfd;
1381 struct timeval t;
1382 struct timeval *tp;
1383 struct timeval now;
1384 TALLOC_CTX *frame = talloc_stackframe();
1385 struct iovec iov[2];
1386 int iov_count;
1387 NTSTATUS status;
1388
1389 if (run_events(winbind_event_context(), &ret, NULL, NULL)) {
1390 TALLOC_FREE(frame);
1391 continue;
1392 }
1393
1394 GetTimeOfDay(&now);
1395
1396 if (child->domain && child->domain->startup &&
1397 (time_mono(NULL) > child->domain->startup_time + 30)) {
1398 /* No longer in "startup" mode. */
1399 DEBUG(10,("fork_domain_child: domain %s no longer in 'startup' mode.\n",
1400 child->domain->name ));
1401 child->domain->startup = False;
1402 }
1403
1404 FD_ZERO(&r_fds);
1405 FD_ZERO(&w_fds);
1406 FD_SET(state.sock, &r_fds);
1407 maxfd = state.sock;
1408
1409 /*
1410 * Initialize this high as event_add_to_select_args()
1411 * uses a timeval_min() on this and next_event. Fix
1412 * from Roel van Meer <rolek@alt001.com>.
1413 */
1414 t.tv_sec = 999999;
1415 t.tv_usec = 0;
1416
1417 event_add_to_select_args(winbind_event_context(), &now,
1418 &r_fds, &w_fds, &t, &maxfd);
1419 tp = get_timed_events_timeout(winbind_event_context(), &t);
1420 if (tp) {
1421 DEBUG(11,("select will use timeout of %u.%u seconds\n",
1422 (unsigned int)tp->tv_sec, (unsigned int)tp->tv_usec ));
1423 }
1424
1425 ret = sys_select(maxfd + 1, &r_fds, &w_fds, NULL, tp);
1426
1427 if (run_events(winbind_event_context(), &ret, &r_fds, &w_fds)) {
1428 /* We got a signal - continue. */
1429 TALLOC_FREE(frame);
1430 continue;
1431 }
1432
1433 if (ret == 0) {
1434 DEBUG(11,("nothing is ready yet, continue\n"));
1435 TALLOC_FREE(frame);
1436 continue;
1437 }
1438
1439 if (ret == -1 && errno == EINTR) {
1440 /* We got a signal - continue. */
1441 TALLOC_FREE(frame);
1442 continue;
1443 }
1444
1445 if (ret == -1 && errno != EINTR) {
1446 DEBUG(0,("select error occured\n"));
1447 TALLOC_FREE(frame);
1448 perror("select");
1449 _exit(1);
1450 }
1451
1452 /* fetch a request from the main daemon */
1453 status = child_read_request(&state);
1454
1455 if (!NT_STATUS_IS_OK(status)) {
1456 /* we lost contact with our parent */
1457 _exit(0);
1458 }
1459
1460 DEBUG(4,("child daemon request %d\n", (int)state.request->cmd));
1461
1462 ZERO_STRUCTP(state.response);
1463 state.request->null_term = '\0';
1464 state.mem_ctx = frame;
1465 child_process_request(child, &state);
1466
1467 DEBUG(4, ("Finished processing child request %d\n",
1468 (int)state.request->cmd));
1469
1470 SAFE_FREE(state.request->extra_data.data);
1471
1472 iov[0].iov_base = (void *)state.response;
1473 iov[0].iov_len = sizeof(struct winbindd_response);
1474 iov_count = 1;
1475
1476 if (state.response->length > sizeof(struct winbindd_response)) {
1477 iov[1].iov_base =
1478 (void *)state.response->extra_data.data;
1479 iov[1].iov_len = state.response->length-iov[0].iov_len;
1480 iov_count = 2;
1481 }
1482
1483 DEBUG(10, ("Writing %d bytes to parent\n",
1484 (int)state.response->length));
1485
1486 if (write_data_iov(state.sock, iov, iov_count) !=
1487 state.response->length) {
1488 DEBUG(0, ("Could not write result\n"));
1489 exit(1);
1490 }
1491 TALLOC_FREE(frame);
1492 }
1493 }
1494
1495 void winbind_msg_ip_dropped_parent(struct messaging_context *msg_ctx,
1496 void *private_data,
1497 uint32_t msg_type,
1498 struct server_id server_id,
1499 DATA_BLOB *data)
1500 {
1501 struct winbindd_child *child;
1502
1503 winbind_msg_ip_dropped(msg_ctx, private_data, msg_type,
1504 server_id, data);
1505
1506
1507 for (child = winbindd_children; child != NULL; child = child->next) {
1508 messaging_send_buf(msg_ctx, pid_to_procid(child->pid),
1509 msg_type, data->data, data->length);
1510 }
1511 }
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