d978a6adf79deedc9f04adfe15d8501badd3f9a6
[kai/samba-autobuild/.git] / source / nsswitch / winbindd_dual.c
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 2 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, write to the Free Software
21    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
22 */
23
24 /*
25  * We fork a child per domain to be able to act non-blocking in the main
26  * winbind daemon. A domain controller thousands of miles away being being
27  * slow replying with a 10.000 user list should not hold up netlogon calls
28  * that can be handled locally.
29  */
30
31 #include "includes.h"
32 #include "winbindd.h"
33
34 #undef DBGC_CLASS
35 #define DBGC_CLASS DBGC_WINBIND
36
37 /* Read some data from a client connection */
38
39 static void child_read_request(struct winbindd_cli_state *state)
40 {
41         ssize_t len;
42
43         /* Read data */
44
45         len = read_data(state->sock, (char *)&state->request,
46                         sizeof(state->request));
47
48         if (len != sizeof(state->request)) {
49                 DEBUG(0, ("Got invalid request length: %d\n", (int)len));
50                 state->finished = True;
51                 return;
52         }
53
54         if (state->request.extra_len == 0) {
55                 state->request.extra_data.data = NULL;
56                 return;
57         }
58
59         DEBUG(10, ("Need to read %d extra bytes\n", (int)state->request.extra_len));
60
61         state->request.extra_data.data =
62                 SMB_MALLOC_ARRAY(char, state->request.extra_len + 1);
63
64         if (state->request.extra_data.data == NULL) {
65                 DEBUG(0, ("malloc failed\n"));
66                 state->finished = True;
67                 return;
68         }
69
70         /* Ensure null termination */
71         state->request.extra_data.data[state->request.extra_len] = '\0';
72
73         len = read_data(state->sock, state->request.extra_data.data,
74                         state->request.extra_len);
75
76         if (len != state->request.extra_len) {
77                 DEBUG(0, ("Could not read extra data\n"));
78                 state->finished = True;
79                 return;
80         }
81 }
82
83 /*
84  * Machinery for async requests sent to children. You set up a
85  * winbindd_request, select a child to query, and issue a async_request
86  * call. When the request is completed, the callback function you specified is
87  * called back with the private pointer you gave to async_request.
88  */
89
90 struct winbindd_async_request {
91         struct winbindd_async_request *next, *prev;
92         TALLOC_CTX *mem_ctx;
93         struct winbindd_child *child;
94         struct winbindd_request *request;
95         struct winbindd_response *response;
96         void (*continuation)(void *private_data, BOOL success);
97         void *private_data;
98 };
99
100 static void async_main_request_sent(void *private_data, BOOL success);
101 static void async_request_sent(void *private_data, BOOL success);
102 static void async_reply_recv(void *private_data, BOOL success);
103 static void schedule_async_request(struct winbindd_child *child);
104
105 void async_request(TALLOC_CTX *mem_ctx, struct winbindd_child *child,
106                    struct winbindd_request *request,
107                    struct winbindd_response *response,
108                    void (*continuation)(void *private_data, BOOL success),
109                    void *private_data)
110 {
111         struct winbindd_async_request *state, *tmp;
112
113         SMB_ASSERT(continuation != NULL);
114
115         state = TALLOC_P(mem_ctx, struct winbindd_async_request);
116
117         if (state == NULL) {
118                 DEBUG(0, ("talloc failed\n"));
119                 continuation(private_data, False);
120                 return;
121         }
122
123         state->mem_ctx = mem_ctx;
124         state->child = child;
125         state->request = request;
126         state->response = response;
127         state->continuation = continuation;
128         state->private_data = private_data;
129
130         DLIST_ADD_END(child->requests, state, tmp);
131
132         schedule_async_request(child);
133
134         return;
135 }
136
137 static void async_main_request_sent(void *private_data, BOOL success)
138 {
139         struct winbindd_async_request *state =
140                 talloc_get_type_abort(private_data, struct winbindd_async_request);
141
142         if (!success) {
143                 DEBUG(5, ("Could not send async request\n"));
144
145                 state->response->length = sizeof(struct winbindd_response);
146                 state->response->result = WINBINDD_ERROR;
147                 state->continuation(state->private_data, False);
148                 return;
149         }
150
151         if (state->request->extra_len == 0) {
152                 async_request_sent(private_data, True);
153                 return;
154         }
155
156         setup_async_write(&state->child->event, state->request->extra_data.data,
157                           state->request->extra_len,
158                           async_request_sent, state);
159 }
160
161 static void async_request_sent(void *private_data_data, BOOL success)
162 {
163         struct winbindd_async_request *state =
164                 talloc_get_type_abort(private_data_data, struct winbindd_async_request);
165
166         if (!success) {
167                 DEBUG(5, ("Could not send async request\n"));
168
169                 state->response->length = sizeof(struct winbindd_response);
170                 state->response->result = WINBINDD_ERROR;
171                 state->continuation(state->private_data, False);
172                 return;
173         }
174
175         /* Request successfully sent to the child, setup the wait for reply */
176
177         setup_async_read(&state->child->event,
178                          &state->response->result,
179                          sizeof(state->response->result),
180                          async_reply_recv, state);
181 }
182
183 static void async_reply_recv(void *private_data, BOOL success)
184 {
185         struct winbindd_async_request *state =
186                 talloc_get_type_abort(private_data, struct winbindd_async_request);
187         struct winbindd_child *child = state->child;
188
189         state->response->length = sizeof(struct winbindd_response);
190
191         if (!success) {
192                 DEBUG(5, ("Could not receive async reply\n"));
193                 state->response->result = WINBINDD_ERROR;
194                 return;
195         }
196
197         SMB_ASSERT(cache_retrieve_response(child->pid,
198                                            state->response));
199
200         cache_cleanup_response(child->pid);
201         
202         DLIST_REMOVE(child->requests, state);
203
204         schedule_async_request(child);
205
206         state->continuation(state->private_data, True);
207 }
208
209 static BOOL fork_domain_child(struct winbindd_child *child);
210
211 static void schedule_async_request(struct winbindd_child *child)
212 {
213         struct winbindd_async_request *request = child->requests;
214
215         if (request == NULL) {
216                 return;
217         }
218
219         if (child->event.flags != 0) {
220                 return;         /* Busy */
221         }
222
223         if ((child->pid == 0) && (!fork_domain_child(child))) {
224                 /* Cancel all outstanding requests */
225
226                 while (request != NULL) {
227                         /* request might be free'd in the continuation */
228                         struct winbindd_async_request *next = request->next;
229                         request->continuation(request->private_data, False);
230                         request = next;
231                 }
232                 return;
233         }
234
235         setup_async_write(&child->event, request->request,
236                           sizeof(*request->request),
237                           async_main_request_sent, request);
238
239         talloc_destroy(child->mem_ctx);
240         return;
241 }
242
243 struct domain_request_state {
244         TALLOC_CTX *mem_ctx;
245         struct winbindd_domain *domain;
246         struct winbindd_request *request;
247         struct winbindd_response *response;
248         void (*continuation)(void *private_data_data, BOOL success);
249         void *private_data_data;
250 };
251
252 static void domain_init_recv(void *private_data_data, BOOL success);
253
254 void async_domain_request(TALLOC_CTX *mem_ctx,
255                           struct winbindd_domain *domain,
256                           struct winbindd_request *request,
257                           struct winbindd_response *response,
258                           void (*continuation)(void *private_data_data, BOOL success),
259                           void *private_data_data)
260 {
261         struct domain_request_state *state;
262
263         if (domain->initialized) {
264                 async_request(mem_ctx, &domain->child, request, response,
265                               continuation, private_data_data);
266                 return;
267         }
268
269         state = TALLOC_P(mem_ctx, struct domain_request_state);
270         if (state == NULL) {
271                 DEBUG(0, ("talloc failed\n"));
272                 continuation(private_data_data, False);
273                 return;
274         }
275
276         state->mem_ctx = mem_ctx;
277         state->domain = domain;
278         state->request = request;
279         state->response = response;
280         state->continuation = continuation;
281         state->private_data_data = private_data_data;
282
283         init_child_connection(domain, domain_init_recv, state);
284 }
285
286 static void recvfrom_child(void *private_data_data, BOOL success)
287 {
288         struct winbindd_cli_state *state =
289                 talloc_get_type_abort(private_data_data, struct winbindd_cli_state);
290         enum winbindd_result result = state->response.result;
291
292         /* This is an optimization: The child has written directly to the
293          * response buffer. The request itself is still in pending state,
294          * state that in the result code. */
295
296         state->response.result = WINBINDD_PENDING;
297
298         if ((!success) || (result != WINBINDD_OK)) {
299                 request_error(state);
300                 return;
301         }
302
303         request_ok(state);
304 }
305
306 void sendto_child(struct winbindd_cli_state *state,
307                   struct winbindd_child *child)
308 {
309         async_request(state->mem_ctx, child, &state->request,
310                       &state->response, recvfrom_child, state);
311 }
312
313 void sendto_domain(struct winbindd_cli_state *state,
314                    struct winbindd_domain *domain)
315 {
316         async_domain_request(state->mem_ctx, domain,
317                              &state->request, &state->response,
318                              recvfrom_child, state);
319 }
320
321 static void domain_init_recv(void *private_data_data, BOOL success)
322 {
323         struct domain_request_state *state =
324                 talloc_get_type_abort(private_data_data, struct domain_request_state);
325
326         if (!success) {
327                 DEBUG(5, ("Domain init returned an error\n"));
328                 state->continuation(state->private_data_data, False);
329                 return;
330         }
331
332         async_request(state->mem_ctx, &state->domain->child,
333                       state->request, state->response,
334                       state->continuation, state->private_data_data);
335 }
336
337 struct winbindd_child_dispatch_table {
338         enum winbindd_cmd cmd;
339         enum winbindd_result (*fn)(struct winbindd_domain *domain,
340                                    struct winbindd_cli_state *state);
341         const char *winbindd_cmd_name;
342 };
343
344 static struct winbindd_child_dispatch_table child_dispatch_table[] = {
345         
346         { WINBINDD_LOOKUPSID,            winbindd_dual_lookupsid,             "LOOKUPSID" },
347         { WINBINDD_LOOKUPNAME,           winbindd_dual_lookupname,            "LOOKUPNAME" },
348         { WINBINDD_LIST_TRUSTDOM,        winbindd_dual_list_trusted_domains,  "LIST_TRUSTDOM" },
349         { WINBINDD_INIT_CONNECTION,      winbindd_dual_init_connection,       "INIT_CONNECTION" },
350         { WINBINDD_GETDCNAME,            winbindd_dual_getdcname,             "GETDCNAME" },
351         { WINBINDD_SHOW_SEQUENCE,        winbindd_dual_show_sequence,         "SHOW_SEQUENCE" },
352         { WINBINDD_PAM_AUTH,             winbindd_dual_pam_auth,              "PAM_AUTH" },
353         { WINBINDD_PAM_AUTH_CRAP,        winbindd_dual_pam_auth_crap,         "AUTH_CRAP" },
354         { WINBINDD_PAM_LOGOFF,           winbindd_dual_pam_logoff,            "PAM_LOGOFF" },
355         { WINBINDD_CHECK_MACHACC,        winbindd_dual_check_machine_acct,    "CHECK_MACHACC" },
356         { WINBINDD_DUAL_SID2UID,         winbindd_dual_sid2uid,               "DUAL_SID2UID" },
357         { WINBINDD_DUAL_SID2GID,         winbindd_dual_sid2gid,               "DUAL_SID2GID" },
358         { WINBINDD_DUAL_UID2NAME,        winbindd_dual_uid2name,              "DUAL_UID2NAME" },
359         { WINBINDD_DUAL_NAME2UID,        winbindd_dual_name2uid,              "DUAL_NAME2UID" },
360         { WINBINDD_DUAL_GID2NAME,        winbindd_dual_gid2name,              "DUAL_GID2NAME" },
361         { WINBINDD_DUAL_NAME2GID,        winbindd_dual_name2gid,              "DUAL_NAME2GID" },
362         { WINBINDD_DUAL_IDMAPSET,        winbindd_dual_idmapset,              "DUAL_IDMAPSET" },
363         { WINBINDD_DUAL_USERINFO,        winbindd_dual_userinfo,              "DUAL_USERINFO" },
364         { WINBINDD_ALLOCATE_UID,         winbindd_dual_allocate_uid,          "ALLOCATE_UID" },
365         { WINBINDD_ALLOCATE_GID,         winbindd_dual_allocate_gid,          "ALLOCATE_GID" },
366         { WINBINDD_GETUSERDOMGROUPS,     winbindd_dual_getuserdomgroups,      "GETUSERDOMGROUPS" },
367         { WINBINDD_DUAL_GETSIDALIASES,   winbindd_dual_getsidaliases,         "GETSIDALIASES" },
368         /* End of list */
369
370         { WINBINDD_NUM_CMDS, NULL, "NONE" }
371 };
372
373 static void child_process_request(struct winbindd_domain *domain,
374                                   struct winbindd_cli_state *state)
375 {
376         struct winbindd_child_dispatch_table *table;
377
378         /* Free response data - we may be interrupted and receive another
379            command before being able to send this data off. */
380
381         state->response.result = WINBINDD_ERROR;
382         state->response.length = sizeof(struct winbindd_response);
383
384         state->mem_ctx = talloc_init("winbind request");
385         if (state->mem_ctx == NULL)
386                 return;
387
388         /* Process command */
389
390         for (table = child_dispatch_table; table->fn; table++) {
391                 if (state->request.cmd == table->cmd) {
392                         DEBUG(10,("process_request: request fn %s\n",
393                                   table->winbindd_cmd_name ));
394                         state->response.result = table->fn(domain, state);
395                         break;
396                 }
397         }
398
399         if (!table->fn) {
400                 DEBUG(10,("process_request: unknown request fn number %d\n",
401                           (int)state->request.cmd ));
402                 state->response.result = WINBINDD_ERROR;
403         }
404
405         talloc_destroy(state->mem_ctx);
406 }
407
408 void setup_domain_child(struct winbindd_domain *domain,
409                         struct winbindd_child *child,
410                         const char *explicit_logfile)
411 {
412         if (explicit_logfile != NULL) {
413                 pstr_sprintf(child->logfilename, "%s/log.winbindd-%s",
414                              dyn_LOGFILEBASE, explicit_logfile);
415         } else if (domain != NULL) {
416                 pstr_sprintf(child->logfilename, "%s/log.wb-%s",
417                              dyn_LOGFILEBASE, domain->name);
418         } else {
419                 smb_panic("Internal error: domain == NULL && "
420                           "explicit_logfile == NULL");
421         }
422
423         child->domain = domain;
424 }
425
426 struct winbindd_child *children = NULL;
427
428 void winbind_child_died(pid_t pid)
429 {
430         struct winbindd_child *child;
431
432         for (child = children; child != NULL; child = child->next) {
433                 if (child->pid == pid) {
434                         break;
435                 }
436         }
437
438         if (child == NULL) {
439                 DEBUG(0, ("Unknown child %d died!\n", pid));
440                 return;
441         }
442
443         remove_fd_event(&child->event);
444         close(child->event.fd);
445         child->event.fd = 0;
446         child->event.flags = 0;
447         child->pid = 0;
448
449         schedule_async_request(child);
450 }
451
452 /* Forward the online/offline messages to our children. */
453 void winbind_msg_offline(int msg_type, struct process_id src, void *buf, size_t len)
454 {
455         struct winbindd_child *child;
456
457         DEBUG(10,("winbind_msg_offline: got offline message.\n"));
458
459         if (!lp_winbind_offline_logon()) {
460                 DEBUG(10,("winbind_msg_offline: rejecting offline message.\n"));
461                 return;
462         }
463
464         /* Set our global state as offline. */
465         if (!set_global_winbindd_state_offline()) {
466                 DEBUG(10,("winbind_msg_offline: offline request failed.\n"));
467                 return;
468         }
469
470         for (child = children; child != NULL; child = child->next) {
471                 DEBUG(10,("winbind_msg_offline: sending message to pid %u.\n",
472                         (unsigned int)child->pid ));
473                 message_send_pid(pid_to_procid(child->pid), MSG_WINBIND_OFFLINE, NULL, 0, False);
474         }
475 }
476
477 /* Forward the online/offline messages to our children. */
478 void winbind_msg_online(int msg_type, struct process_id src, void *buf, size_t len)
479 {
480         struct winbindd_child *child;
481
482         DEBUG(10,("winbind_msg_online: got online message.\n"));
483
484         if (!lp_winbind_offline_logon()) {
485                 DEBUG(10,("winbind_msg_online: rejecting online message.\n"));
486                 return;
487         }
488
489         /* Set our global state as online. */
490         set_global_winbindd_state_online();
491
492         for (child = children; child != NULL; child = child->next) {
493                 DEBUG(10,("winbind_msg_online: sending message to pid %u.\n",
494                         (unsigned int)child->pid ));
495                 message_send_pid(pid_to_procid(child->pid), MSG_WINBIND_ONLINE, NULL, 0, False);
496         }
497 }
498
499 static void account_lockout_policy_handler(struct timed_event *te,
500                                            const struct timeval *now,
501                                            void *private_data)
502 {
503         struct winbindd_child *child = private_data;
504
505         struct winbindd_methods *methods;
506         SAM_UNK_INFO_12 lockout_policy;
507         NTSTATUS result;
508
509         DEBUG(10,("account_lockout_policy_handler called\n"));
510
511         if (child->lockout_policy_event) {
512                 TALLOC_FREE(child->lockout_policy_event);
513         }
514
515         methods = child->domain->methods;
516
517         result = methods->lockout_policy(child->domain, child->mem_ctx, &lockout_policy);
518         if (!NT_STATUS_IS_OK(result)) {
519                 DEBUG(10,("account_lockout_policy_handler: failed to call lockout_policy\n"));
520                 return;
521         }
522
523         child->lockout_policy_event = add_timed_event(child->mem_ctx, 
524                                                       timeval_current_ofs(3600, 0),
525                                                       "account_lockout_policy_handler",
526                                                       account_lockout_policy_handler,
527                                                       child);
528 }
529
530 /* Deal with a request to go offline. */
531
532 static void child_msg_offline(int msg_type, struct process_id src, void *buf, size_t len)
533 {
534         struct winbindd_domain *domain;
535
536         DEBUG(5,("child_msg_offline received.\n"));
537
538         if (!lp_winbind_offline_logon()) {
539                 DEBUG(10,("child_msg_offline: rejecting offline message.\n"));
540                 return;
541         }
542
543         /* Set our global state as offline. */
544         if (!set_global_winbindd_state_offline()) {
545                 DEBUG(10,("child_msg_offline: offline request failed.\n"));
546                 return;
547         }
548
549         /* Mark all our domains as offline. */
550
551         for (domain = domain_list(); domain; domain = domain->next) {
552                 DEBUG(5,("child_msg_offline: marking %s offline.\n", domain->name));
553                 domain->online = False;
554         }
555 }
556
557 /* Deal with a request to go online. */
558
559 static void child_msg_online(int msg_type, struct process_id src, void *buf, size_t len)
560 {
561         struct winbindd_domain *domain;
562
563         DEBUG(5,("child_msg_online received.\n"));
564
565         if (!lp_winbind_offline_logon()) {
566                 DEBUG(10,("child_msg_online: rejecting online message.\n"));
567                 return;
568         }
569
570         /* Set our global state as online. */
571         set_global_winbindd_state_online();
572
573         winbindd_flush_nscd_cache();
574
575         /* Mark everything online - delete any negative cache entries
576            to force an immediate reconnect. */
577
578         for (domain = domain_list(); domain; domain = domain->next) {
579                 DEBUG(5,("child_msg_online: marking %s online.\n", domain->name));
580                 domain->online = True;
581                 check_negative_conn_cache_timeout(domain->name, domain->dcname, 0);
582         }
583 }
584
585 static BOOL fork_domain_child(struct winbindd_child *child)
586 {
587         int fdpair[2];
588         struct winbindd_cli_state state;
589         extern BOOL override_logfile;
590
591         if (socketpair(AF_UNIX, SOCK_STREAM, 0, fdpair) != 0) {
592                 DEBUG(0, ("Could not open child pipe: %s\n",
593                           strerror(errno)));
594                 return False;
595         }
596
597         ZERO_STRUCT(state);
598         state.pid = getpid();
599
600         /* Ensure we don't process messages whilst we're
601            changing the disposition for the child. */
602         message_block();
603
604         child->pid = sys_fork();
605
606         if (child->pid == -1) {
607                 DEBUG(0, ("Could not fork: %s\n", strerror(errno)));
608                 message_unblock();
609                 return False;
610         }
611
612         if (child->pid != 0) {
613                 /* Parent */
614                 close(fdpair[0]);
615                 child->next = child->prev = NULL;
616                 DLIST_ADD(children, child);
617                 child->event.fd = fdpair[1];
618                 child->event.flags = 0;
619                 child->requests = NULL;
620                 add_fd_event(&child->event);
621                 /* We're ok with online/offline messages now. */
622                 message_unblock();
623                 return True;
624         }
625
626         /* Child */
627
628         state.sock = fdpair[0];
629         close(fdpair[1]);
630
631         /* tdb needs special fork handling */
632         if (tdb_reopen_all(1) == -1) {
633                 DEBUG(0,("tdb_reopen_all failed.\n"));
634                 _exit(0);
635         }
636
637         close_conns_after_fork();
638
639         if (!override_logfile) {
640                 lp_set_logfile(child->logfilename);
641                 reopen_logs();
642         }
643
644         /* Don't handle the same messages as our parent. */
645         message_deregister(MSG_SMB_CONF_UPDATED);
646         message_deregister(MSG_SHUTDOWN);
647         message_deregister(MSG_WINBIND_OFFLINE);
648         message_deregister(MSG_WINBIND_ONLINE);
649
650         /* The child is ok with online/offline messages now. */
651         message_unblock();
652
653         child->mem_ctx = talloc_init("child_mem_ctx");
654         if (child->mem_ctx == NULL) {
655                 return False;
656         }
657
658         if (child->domain != NULL) {
659                 /* We might be in the idmap child...*/
660                 child->lockout_policy_event = add_timed_event(
661                         child->mem_ctx, timeval_zero(),
662                         "account_lockout_policy_handler",
663                         account_lockout_policy_handler,
664                         child);
665         }
666
667         /* Handle online/offline messages. */
668         message_register(MSG_WINBIND_OFFLINE,child_msg_offline);
669         message_register(MSG_WINBIND_ONLINE,child_msg_online);
670
671         while (1) {
672
673                 int ret;
674                 fd_set read_fds;
675                 struct timeval t;
676                 struct timeval *tp;
677                 struct timeval now;
678
679                 /* free up any talloc memory */
680                 lp_TALLOC_FREE();
681                 main_loop_TALLOC_FREE();
682
683                 run_events();
684
685                 GetTimeOfDay(&now);
686
687                 tp = get_timed_events_timeout(&t, (time_t)-1);
688                 if (tp) {
689                         DEBUG(11,("select will use timeout of %d seconds\n", (int)tp->tv_sec));
690                 }
691
692                 /* Handle messages */
693
694                 message_dispatch();
695
696                 FD_ZERO(&read_fds);
697                 FD_SET(state.sock, &read_fds);
698
699                 ret = sys_select(state.sock + 1, &read_fds, NULL, NULL, tp);
700
701                 if (ret == 0) {
702                         DEBUG(11,("nothing is ready yet, continue\n"));
703                         continue;
704                 }
705
706                 if (ret == -1 && errno == EINTR) {
707                         /* We got a signal - continue. */
708                         continue;
709                 }
710
711                 if (ret == -1 && errno != EINTR) {
712                         DEBUG(0,("select error occured\n"));
713                         perror("select");
714                         return False;
715                 }
716
717                 /* fetch a request from the main daemon */
718                 child_read_request(&state);
719
720                 if (state.finished) {
721                         /* we lost contact with our parent */
722                         exit(0);
723                 }
724
725                 DEBUG(4,("child daemon request %d\n", (int)state.request.cmd));
726
727                 ZERO_STRUCT(state.response);
728                 state.request.null_term = '\0';
729                 child_process_request(child->domain, &state);
730
731                 SAFE_FREE(state.request.extra_data.data);
732
733                 cache_store_response(sys_getpid(), &state.response);
734
735                 SAFE_FREE(state.response.extra_data.data);
736
737                 /* We just send the result code back, the result
738                  * structure needs to be fetched via the
739                  * winbindd_cache. Hmm. That needs fixing... */
740
741                 if (write_data(state.sock, (void *)&state.response.result,
742                                sizeof(state.response.result)) !=
743                     sizeof(state.response.result)) {
744                         DEBUG(0, ("Could not write result\n"));
745                         exit(1);
746                 }
747         }
748 }