2 Unix SMB/CIFS implementation.
6 Copyright (C) Andrew Tridgell 2002
7 Copyright (C) Volker Lendecke 2004,2005
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.
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.
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/>.
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.
34 #define DBGC_CLASS DBGC_WINBIND
36 extern bool override_logfile;
38 /* Read some data from a client connection */
40 static void child_read_request(struct winbindd_cli_state *state)
46 len = read_data(state->sock, (char *)&state->request,
47 sizeof(state->request), NULL);
49 if (len != sizeof(state->request)) {
50 DEBUG(len > 0 ? 0 : 3, ("Got invalid request length: %d\n", (int)len));
51 state->finished = True;
55 if (state->request.extra_len == 0) {
56 state->request.extra_data.data = NULL;
60 DEBUG(10, ("Need to read %d extra bytes\n", (int)state->request.extra_len));
62 state->request.extra_data.data =
63 SMB_MALLOC_ARRAY(char, state->request.extra_len + 1);
65 if (state->request.extra_data.data == NULL) {
66 DEBUG(0, ("malloc failed\n"));
67 state->finished = True;
71 /* Ensure null termination */
72 state->request.extra_data.data[state->request.extra_len] = '\0';
74 len = read_data(state->sock, state->request.extra_data.data,
75 state->request.extra_len, NULL);
77 if (len != state->request.extra_len) {
78 DEBUG(0, ("Could not read extra data\n"));
79 state->finished = True;
85 * Machinery for async requests sent to children. You set up a
86 * winbindd_request, select a child to query, and issue a async_request
87 * call. When the request is completed, the callback function you specified is
88 * called back with the private pointer you gave to async_request.
91 struct winbindd_async_request {
92 struct winbindd_async_request *next, *prev;
94 struct winbindd_child *child;
95 struct winbindd_request *request;
96 struct winbindd_response *response;
97 void (*continuation)(void *private_data, bool success);
98 struct timed_event *reply_timeout_event;
99 pid_t child_pid; /* pid of the child we're waiting on. Used to detect
100 a restart of the child (child->pid != child_pid). */
104 static void async_main_request_sent(void *private_data, bool success);
105 static void async_request_sent(void *private_data, bool success);
106 static void async_reply_recv(void *private_data, bool success);
107 static void schedule_async_request(struct winbindd_child *child);
109 void async_request(TALLOC_CTX *mem_ctx, struct winbindd_child *child,
110 struct winbindd_request *request,
111 struct winbindd_response *response,
112 void (*continuation)(void *private_data, bool success),
115 struct winbindd_async_request *state;
117 SMB_ASSERT(continuation != NULL);
119 state = TALLOC_P(mem_ctx, struct winbindd_async_request);
122 DEBUG(0, ("talloc failed\n"));
123 continuation(private_data, False);
127 state->mem_ctx = mem_ctx;
128 state->child = child;
129 state->request = request;
130 state->response = response;
131 state->continuation = continuation;
132 state->private_data = private_data;
134 DLIST_ADD_END(child->requests, state, struct winbindd_async_request *);
136 schedule_async_request(child);
141 static void async_main_request_sent(void *private_data, bool success)
143 struct winbindd_async_request *state =
144 talloc_get_type_abort(private_data, struct winbindd_async_request);
147 DEBUG(5, ("Could not send async request\n"));
149 state->response->length = sizeof(struct winbindd_response);
150 state->response->result = WINBINDD_ERROR;
151 state->continuation(state->private_data, False);
155 if (state->request->extra_len == 0) {
156 async_request_sent(private_data, True);
160 setup_async_write(&state->child->event, state->request->extra_data.data,
161 state->request->extra_len,
162 async_request_sent, state);
165 /****************************************************************
166 Handler triggered if the child winbindd doesn't respond within
168 ****************************************************************/
170 static void async_request_timeout_handler(struct event_context *ctx,
171 struct timed_event *te,
172 const struct timeval *now,
175 struct winbindd_async_request *state =
176 talloc_get_type_abort(private_data, struct winbindd_async_request);
178 DEBUG(0,("async_request_timeout_handler: child pid %u is not responding. "
179 "Closing connection to it.\n",
182 /* Deal with the reply - set to error. */
183 async_reply_recv(private_data, False);
186 /**************************************************************
187 Common function called on both async send and recv fail.
188 Cleans up the child and schedules the next request.
189 **************************************************************/
191 static void async_request_fail(struct winbindd_async_request *state)
193 DLIST_REMOVE(state->child->requests, state);
195 TALLOC_FREE(state->reply_timeout_event);
197 SMB_ASSERT(state->child_pid != (pid_t)0);
199 /* If not already reaped, send kill signal to child. */
200 if (state->child->pid == state->child_pid) {
201 kill(state->child_pid, SIGTERM);
204 * Close the socket to the child.
206 winbind_child_died(state->child_pid);
209 state->response->length = sizeof(struct winbindd_response);
210 state->response->result = WINBINDD_ERROR;
211 state->continuation(state->private_data, False);
214 static void async_request_sent(void *private_data_data, bool success)
216 struct winbindd_async_request *state =
217 talloc_get_type_abort(private_data_data, struct winbindd_async_request);
220 DEBUG(5, ("Could not send async request to child pid %u\n",
221 (unsigned int)state->child_pid ));
222 async_request_fail(state);
226 /* Request successfully sent to the child, setup the wait for reply */
228 setup_async_read(&state->child->event,
229 &state->response->result,
230 sizeof(state->response->result),
231 async_reply_recv, state);
234 * Set up a timeout of 300 seconds for the response.
235 * If we don't get it close the child socket and
239 state->reply_timeout_event = event_add_timed(winbind_event_context(),
241 timeval_current_ofs(300,0),
242 "async_request_timeout",
243 async_request_timeout_handler,
245 if (!state->reply_timeout_event) {
246 smb_panic("async_request_sent: failed to add timeout handler.\n");
250 static void async_reply_recv(void *private_data, bool success)
252 struct winbindd_async_request *state =
253 talloc_get_type_abort(private_data, struct winbindd_async_request);
254 struct winbindd_child *child = state->child;
256 TALLOC_FREE(state->reply_timeout_event);
258 state->response->length = sizeof(struct winbindd_response);
261 DEBUG(5, ("Could not receive async reply from child pid %u\n",
262 (unsigned int)state->child_pid ));
264 cache_cleanup_response(state->child_pid);
265 async_request_fail(state);
269 SMB_ASSERT(cache_retrieve_response(state->child_pid,
272 cache_cleanup_response(state->child_pid);
274 DLIST_REMOVE(child->requests, state);
276 schedule_async_request(child);
278 state->continuation(state->private_data, True);
281 static bool fork_domain_child(struct winbindd_child *child);
283 static void schedule_async_request(struct winbindd_child *child)
285 struct winbindd_async_request *request = child->requests;
287 if (request == NULL) {
291 if (child->event.flags != 0) {
295 if ((child->pid == 0) && (!fork_domain_child(child))) {
296 /* Cancel all outstanding requests */
298 while (request != NULL) {
299 /* request might be free'd in the continuation */
300 struct winbindd_async_request *next = request->next;
301 request->continuation(request->private_data, False);
307 /* Now we know who we're sending to - remember the pid. */
308 request->child_pid = child->pid;
310 setup_async_write(&child->event, request->request,
311 sizeof(*request->request),
312 async_main_request_sent, request);
317 struct domain_request_state {
319 struct winbindd_domain *domain;
320 struct winbindd_request *request;
321 struct winbindd_response *response;
322 void (*continuation)(void *private_data_data, bool success);
323 void *private_data_data;
326 static void domain_init_recv(void *private_data_data, bool success);
328 void async_domain_request(TALLOC_CTX *mem_ctx,
329 struct winbindd_domain *domain,
330 struct winbindd_request *request,
331 struct winbindd_response *response,
332 void (*continuation)(void *private_data_data, bool success),
333 void *private_data_data)
335 struct domain_request_state *state;
337 if (domain->initialized) {
338 async_request(mem_ctx, &domain->child, request, response,
339 continuation, private_data_data);
343 state = TALLOC_P(mem_ctx, struct domain_request_state);
345 DEBUG(0, ("talloc failed\n"));
346 continuation(private_data_data, False);
350 state->mem_ctx = mem_ctx;
351 state->domain = domain;
352 state->request = request;
353 state->response = response;
354 state->continuation = continuation;
355 state->private_data_data = private_data_data;
357 init_child_connection(domain, domain_init_recv, state);
360 static void domain_init_recv(void *private_data_data, bool success)
362 struct domain_request_state *state =
363 talloc_get_type_abort(private_data_data, struct domain_request_state);
366 DEBUG(5, ("Domain init returned an error\n"));
367 state->continuation(state->private_data_data, False);
371 async_request(state->mem_ctx, &state->domain->child,
372 state->request, state->response,
373 state->continuation, state->private_data_data);
376 static void recvfrom_child(void *private_data_data, bool success)
378 struct winbindd_cli_state *state =
379 talloc_get_type_abort(private_data_data, struct winbindd_cli_state);
380 enum winbindd_result result = state->response.result;
382 /* This is an optimization: The child has written directly to the
383 * response buffer. The request itself is still in pending state,
384 * state that in the result code. */
386 state->response.result = WINBINDD_PENDING;
388 if ((!success) || (result != WINBINDD_OK)) {
389 request_error(state);
396 void sendto_child(struct winbindd_cli_state *state,
397 struct winbindd_child *child)
399 async_request(state->mem_ctx, child, &state->request,
400 &state->response, recvfrom_child, state);
403 void sendto_domain(struct winbindd_cli_state *state,
404 struct winbindd_domain *domain)
406 async_domain_request(state->mem_ctx, domain,
407 &state->request, &state->response,
408 recvfrom_child, state);
411 static void child_process_request(struct winbindd_child *child,
412 struct winbindd_cli_state *state)
414 struct winbindd_domain *domain = child->domain;
415 const struct winbindd_child_dispatch_table *table = child->table;
417 /* Free response data - we may be interrupted and receive another
418 command before being able to send this data off. */
420 state->response.result = WINBINDD_ERROR;
421 state->response.length = sizeof(struct winbindd_response);
423 /* as all requests in the child are sync, we can use talloc_tos() */
424 state->mem_ctx = talloc_tos();
426 /* Process command */
428 for (; table->name; table++) {
429 if (state->request.cmd == table->struct_cmd) {
430 DEBUG(10,("child_process_request: request fn %s\n",
432 state->response.result = table->struct_fn(domain, state);
437 DEBUG(1 ,("child_process_request: unknown request fn number %d\n",
438 (int)state->request.cmd));
439 state->response.result = WINBINDD_ERROR;
442 void setup_child(struct winbindd_child *child,
443 const struct winbindd_child_dispatch_table *table,
444 const char *logprefix,
447 if (logprefix && logname) {
448 if (asprintf(&child->logfilename, "%s/%s-%s",
449 get_dyn_LOGFILEBASE(), logprefix, logname) < 0) {
450 smb_panic("Internal error: asprintf failed");
453 smb_panic("Internal error: logprefix == NULL && "
457 child->domain = NULL;
458 child->table = table;
461 struct winbindd_child *children = NULL;
463 void winbind_child_died(pid_t pid)
465 struct winbindd_child *child;
467 for (child = children; child != NULL; child = child->next) {
468 if (child->pid == pid) {
474 DEBUG(5, ("Already reaped child %u died\n", (unsigned int)pid));
478 remove_fd_event(&child->event);
479 close(child->event.fd);
481 child->event.flags = 0;
484 schedule_async_request(child);
487 /* Ensure any negative cache entries with the netbios or realm names are removed. */
489 void winbindd_flush_negative_conn_cache(struct winbindd_domain *domain)
491 flush_negative_conn_cache_for_domain(domain->name);
492 if (*domain->alt_name) {
493 flush_negative_conn_cache_for_domain(domain->alt_name);
497 /* Set our domains as offline and forward the offline message to our children. */
499 void winbind_msg_offline(struct messaging_context *msg_ctx,
502 struct server_id server_id,
505 struct winbindd_child *child;
506 struct winbindd_domain *domain;
508 DEBUG(10,("winbind_msg_offline: got offline message.\n"));
510 if (!lp_winbind_offline_logon()) {
511 DEBUG(10,("winbind_msg_offline: rejecting offline message.\n"));
515 /* Set our global state as offline. */
516 if (!set_global_winbindd_state_offline()) {
517 DEBUG(10,("winbind_msg_offline: offline request failed.\n"));
521 /* Set all our domains as offline. */
522 for (domain = domain_list(); domain; domain = domain->next) {
523 if (domain->internal) {
526 DEBUG(5,("winbind_msg_offline: marking %s offline.\n", domain->name));
527 set_domain_offline(domain);
530 for (child = children; child != NULL; child = child->next) {
531 /* Don't send message to internal childs. We've already
533 if (!child->domain || winbindd_internal_child(child)) {
537 /* Or internal domains (this should not be possible....) */
538 if (child->domain->internal) {
542 /* Each winbindd child should only process requests for one domain - make sure
543 we only set it online / offline for that domain. */
545 DEBUG(10,("winbind_msg_offline: sending message to pid %u for domain %s.\n",
546 (unsigned int)child->pid, domain->name ));
548 messaging_send_buf(msg_ctx, pid_to_procid(child->pid),
550 (uint8 *)child->domain->name,
551 strlen(child->domain->name)+1);
555 /* Set our domains as online and forward the online message to our children. */
557 void winbind_msg_online(struct messaging_context *msg_ctx,
560 struct server_id server_id,
563 struct winbindd_child *child;
564 struct winbindd_domain *domain;
566 DEBUG(10,("winbind_msg_online: got online message.\n"));
568 if (!lp_winbind_offline_logon()) {
569 DEBUG(10,("winbind_msg_online: rejecting online message.\n"));
573 /* Set our global state as online. */
574 set_global_winbindd_state_online();
576 smb_nscd_flush_user_cache();
577 smb_nscd_flush_group_cache();
579 /* Set all our domains as online. */
580 for (domain = domain_list(); domain; domain = domain->next) {
581 if (domain->internal) {
584 DEBUG(5,("winbind_msg_online: requesting %s to go online.\n", domain->name));
586 winbindd_flush_negative_conn_cache(domain);
587 set_domain_online_request(domain);
589 /* Send an online message to the idmap child when our
590 primary domain comes back online */
592 if ( domain->primary ) {
593 struct winbindd_child *idmap = idmap_child();
595 if ( idmap->pid != 0 ) {
596 messaging_send_buf(msg_ctx,
597 pid_to_procid(idmap->pid),
599 (uint8 *)domain->name,
600 strlen(domain->name)+1);
606 for (child = children; child != NULL; child = child->next) {
607 /* Don't send message to internal childs. */
608 if (!child->domain || winbindd_internal_child(child)) {
612 /* Or internal domains (this should not be possible....) */
613 if (child->domain->internal) {
617 /* Each winbindd child should only process requests for one domain - make sure
618 we only set it online / offline for that domain. */
620 DEBUG(10,("winbind_msg_online: sending message to pid %u for domain %s.\n",
621 (unsigned int)child->pid, child->domain->name ));
623 messaging_send_buf(msg_ctx, pid_to_procid(child->pid),
625 (uint8 *)child->domain->name,
626 strlen(child->domain->name)+1);
630 /* Forward the online/offline messages to our children. */
631 void winbind_msg_onlinestatus(struct messaging_context *msg_ctx,
634 struct server_id server_id,
637 struct winbindd_child *child;
639 DEBUG(10,("winbind_msg_onlinestatus: got onlinestatus message.\n"));
641 for (child = children; child != NULL; child = child->next) {
642 if (child->domain && child->domain->primary) {
643 DEBUG(10,("winbind_msg_onlinestatus: "
644 "sending message to pid %u of primary domain.\n",
645 (unsigned int)child->pid));
646 messaging_send_buf(msg_ctx, pid_to_procid(child->pid),
647 MSG_WINBIND_ONLINESTATUS,
655 void winbind_msg_dump_event_list(struct messaging_context *msg_ctx,
658 struct server_id server_id,
661 struct winbindd_child *child;
663 DEBUG(10,("winbind_msg_dump_event_list received\n"));
665 dump_event_list(winbind_event_context());
667 for (child = children; child != NULL; child = child->next) {
669 DEBUG(10,("winbind_msg_dump_event_list: sending message to pid %u\n",
670 (unsigned int)child->pid));
672 messaging_send_buf(msg_ctx, pid_to_procid(child->pid),
679 static void account_lockout_policy_handler(struct event_context *ctx,
680 struct timed_event *te,
681 const struct timeval *now,
684 struct winbindd_child *child =
685 (struct winbindd_child *)private_data;
686 TALLOC_CTX *mem_ctx = NULL;
687 struct winbindd_methods *methods;
688 SAM_UNK_INFO_12 lockout_policy;
691 DEBUG(10,("account_lockout_policy_handler called\n"));
693 TALLOC_FREE(child->lockout_policy_event);
695 if ( !winbindd_can_contact_domain( child->domain ) ) {
696 DEBUG(10,("account_lockout_policy_handler: Removing myself since I "
697 "do not have an incoming trust to domain %s\n",
698 child->domain->name));
703 methods = child->domain->methods;
705 mem_ctx = talloc_init("account_lockout_policy_handler ctx");
707 result = NT_STATUS_NO_MEMORY;
709 result = methods->lockout_policy(child->domain, mem_ctx, &lockout_policy);
711 TALLOC_FREE(mem_ctx);
713 if (!NT_STATUS_IS_OK(result)) {
714 DEBUG(10,("account_lockout_policy_handler: lockout_policy failed error %s\n",
718 child->lockout_policy_event = event_add_timed(winbind_event_context(), NULL,
719 timeval_current_ofs(3600, 0),
720 "account_lockout_policy_handler",
721 account_lockout_policy_handler,
725 /* Deal with a request to go offline. */
727 static void child_msg_offline(struct messaging_context *msg,
730 struct server_id server_id,
733 struct winbindd_domain *domain;
734 const char *domainname = (const char *)data->data;
736 if (data->data == NULL || data->length == 0) {
740 DEBUG(5,("child_msg_offline received for domain %s.\n", domainname));
742 if (!lp_winbind_offline_logon()) {
743 DEBUG(10,("child_msg_offline: rejecting offline message.\n"));
747 /* Mark the requested domain offline. */
749 for (domain = domain_list(); domain; domain = domain->next) {
750 if (domain->internal) {
753 if (strequal(domain->name, domainname)) {
754 DEBUG(5,("child_msg_offline: marking %s offline.\n", domain->name));
755 set_domain_offline(domain);
760 /* Deal with a request to go online. */
762 static void child_msg_online(struct messaging_context *msg,
765 struct server_id server_id,
768 struct winbindd_domain *domain;
769 const char *domainname = (const char *)data->data;
771 if (data->data == NULL || data->length == 0) {
775 DEBUG(5,("child_msg_online received for domain %s.\n", domainname));
777 if (!lp_winbind_offline_logon()) {
778 DEBUG(10,("child_msg_online: rejecting online message.\n"));
782 /* Set our global state as online. */
783 set_global_winbindd_state_online();
785 /* Try and mark everything online - delete any negative cache entries
786 to force a reconnect now. */
788 for (domain = domain_list(); domain; domain = domain->next) {
789 if (domain->internal) {
792 if (strequal(domain->name, domainname)) {
793 DEBUG(5,("child_msg_online: requesting %s to go online.\n", domain->name));
794 winbindd_flush_negative_conn_cache(domain);
795 set_domain_online_request(domain);
800 static const char *collect_onlinestatus(TALLOC_CTX *mem_ctx)
802 struct winbindd_domain *domain;
805 if ((buf = talloc_asprintf(mem_ctx, "global:%s ",
806 get_global_winbindd_state_offline() ?
807 "Offline":"Online")) == NULL) {
811 for (domain = domain_list(); domain; domain = domain->next) {
812 if ((buf = talloc_asprintf_append_buffer(buf, "%s:%s ",
815 "Online":"Offline")) == NULL) {
820 buf = talloc_asprintf_append_buffer(buf, "\n");
822 DEBUG(5,("collect_onlinestatus: %s", buf));
827 static void child_msg_onlinestatus(struct messaging_context *msg_ctx,
830 struct server_id server_id,
835 struct server_id *sender;
837 DEBUG(5,("winbind_msg_onlinestatus received.\n"));
843 sender = (struct server_id *)data->data;
845 mem_ctx = talloc_init("winbind_msg_onlinestatus");
846 if (mem_ctx == NULL) {
850 message = collect_onlinestatus(mem_ctx);
851 if (message == NULL) {
852 talloc_destroy(mem_ctx);
856 messaging_send_buf(msg_ctx, *sender, MSG_WINBIND_ONLINESTATUS,
857 (uint8 *)message, strlen(message) + 1);
859 talloc_destroy(mem_ctx);
862 static void child_msg_dump_event_list(struct messaging_context *msg,
865 struct server_id server_id,
868 DEBUG(5,("child_msg_dump_event_list received\n"));
870 dump_event_list(winbind_event_context());
874 static bool fork_domain_child(struct winbindd_child *child)
877 struct winbindd_cli_state state;
878 struct winbindd_domain *domain;
880 if (socketpair(AF_UNIX, SOCK_STREAM, 0, fdpair) != 0) {
881 DEBUG(0, ("Could not open child pipe: %s\n",
887 state.pid = sys_getpid();
892 child->pid = sys_fork();
894 if (child->pid == -1) {
895 DEBUG(0, ("Could not fork: %s\n", strerror(errno)));
899 if (child->pid != 0) {
902 child->next = child->prev = NULL;
903 DLIST_ADD(children, child);
904 child->event.fd = fdpair[1];
905 child->event.flags = 0;
906 child->requests = NULL;
907 add_fd_event(&child->event);
913 state.sock = fdpair[0];
916 /* tdb needs special fork handling */
917 if (tdb_reopen_all(1) == -1) {
918 DEBUG(0,("tdb_reopen_all failed.\n"));
922 close_conns_after_fork();
924 if (!override_logfile) {
925 lp_set_logfile(child->logfilename);
930 * For clustering, we need to re-init our ctdbd connection after the
933 if (!NT_STATUS_IS_OK(messaging_reinit(winbind_messaging_context())))
936 /* Don't handle the same messages as our parent. */
937 messaging_deregister(winbind_messaging_context(),
938 MSG_SMB_CONF_UPDATED, NULL);
939 messaging_deregister(winbind_messaging_context(),
941 messaging_deregister(winbind_messaging_context(),
942 MSG_WINBIND_OFFLINE, NULL);
943 messaging_deregister(winbind_messaging_context(),
944 MSG_WINBIND_ONLINE, NULL);
945 messaging_deregister(winbind_messaging_context(),
946 MSG_WINBIND_ONLINESTATUS, NULL);
947 messaging_deregister(winbind_messaging_context(),
948 MSG_DUMP_EVENT_LIST, NULL);
950 /* Handle online/offline messages. */
951 messaging_register(winbind_messaging_context(), NULL,
952 MSG_WINBIND_OFFLINE, child_msg_offline);
953 messaging_register(winbind_messaging_context(), NULL,
954 MSG_WINBIND_ONLINE, child_msg_online);
955 messaging_register(winbind_messaging_context(), NULL,
956 MSG_WINBIND_ONLINESTATUS, child_msg_onlinestatus);
957 messaging_register(winbind_messaging_context(), NULL,
958 MSG_DUMP_EVENT_LIST, child_msg_dump_event_list);
960 if ( child->domain ) {
961 child->domain->startup = True;
962 child->domain->startup_time = time(NULL);
965 /* Ensure we have no pending check_online events other
966 than one for this domain. */
968 for (domain = domain_list(); domain; domain = domain->next) {
969 if (domain != child->domain) {
970 TALLOC_FREE(domain->check_online_event);
974 /* Ensure we're not handling an event inherited from
977 cancel_named_event(winbind_event_context(),
978 "krb5_ticket_refresh_handler");
980 /* We might be in the idmap child...*/
981 if (child->domain && !(child->domain->internal) &&
982 lp_winbind_offline_logon()) {
984 set_domain_online_request(child->domain);
986 child->lockout_policy_event = event_add_timed(
987 winbind_event_context(), NULL, timeval_zero(),
988 "account_lockout_policy_handler",
989 account_lockout_policy_handler,
1000 TALLOC_CTX *frame = talloc_stackframe();
1002 run_events(winbind_event_context(), 0, NULL, NULL);
1006 if (child->domain && child->domain->startup &&
1007 (now.tv_sec > child->domain->startup_time + 30)) {
1008 /* No longer in "startup" mode. */
1009 DEBUG(10,("fork_domain_child: domain %s no longer in 'startup' mode.\n",
1010 child->domain->name ));
1011 child->domain->startup = False;
1014 tp = get_timed_events_timeout(winbind_event_context(), &t);
1016 DEBUG(11,("select will use timeout of %u.%u seconds\n",
1017 (unsigned int)tp->tv_sec, (unsigned int)tp->tv_usec ));
1020 /* Handle messages */
1022 message_dispatch(winbind_messaging_context());
1025 FD_SET(state.sock, &read_fds);
1027 ret = sys_select(state.sock + 1, &read_fds, NULL, NULL, tp);
1030 DEBUG(11,("nothing is ready yet, continue\n"));
1035 if (ret == -1 && errno == EINTR) {
1036 /* We got a signal - continue. */
1041 if (ret == -1 && errno != EINTR) {
1042 DEBUG(0,("select error occured\n"));
1048 /* fetch a request from the main daemon */
1049 child_read_request(&state);
1051 if (state.finished) {
1052 /* we lost contact with our parent */
1056 DEBUG(4,("child daemon request %d\n", (int)state.request.cmd));
1058 ZERO_STRUCT(state.response);
1059 state.request.null_term = '\0';
1060 child_process_request(child, &state);
1062 SAFE_FREE(state.request.extra_data.data);
1064 cache_store_response(sys_getpid(), &state.response);
1066 SAFE_FREE(state.response.extra_data.data);
1068 /* We just send the result code back, the result
1069 * structure needs to be fetched via the
1070 * winbindd_cache. Hmm. That needs fixing... */
1072 if (write_data(state.sock,
1073 (const char *)&state.response.result,
1074 sizeof(state.response.result)) !=
1075 sizeof(state.response.result)) {
1076 DEBUG(0, ("Could not write result\n"));