2 Unix SMB/CIFS implementation.
4 Winbind daemon for ntdom nss module
6 Copyright (C) by Tim Potter 2000-2002
7 Copyright (C) Andrew Tridgell 2002
8 Copyright (C) Jelmer Vernooij 2003
9 Copyright (C) Volker Lendecke 2004
11 This program is free software; you can redistribute it and/or modify
12 it under the terms of the GNU General Public License as published by
13 the Free Software Foundation; either version 2 of the License, or
14 (at your option) any later version.
16 This program is distributed in the hope that it will be useful,
17 but WITHOUT ANY WARRANTY; without even the implied warranty of
18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 GNU General Public License for more details.
21 You should have received a copy of the GNU General Public License
22 along with this program; if not, write to the Free Software
23 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
30 #define DBGC_CLASS DBGC_WINBIND
32 BOOL opt_nocache = False;
33 static BOOL interactive = False;
35 extern BOOL override_logfile;
37 /* Reload configuration */
39 static BOOL reload_services_file(void)
46 pstrcpy(fname,lp_configfile());
47 if (file_exist(fname,NULL) && !strcsequal(fname,dyn_CONFIGFILE)) {
48 pstrcpy(dyn_CONFIGFILE,fname);
53 ret = lp_load(dyn_CONFIGFILE,False,False,True,True);
62 /**************************************************************************** **
64 **************************************************************************** */
66 static void fault_quit(void)
73 static void winbindd_status(void)
75 struct winbindd_cli_state *tmp;
77 DEBUG(0, ("winbindd status:\n"));
79 /* Print client state information */
81 DEBUG(0, ("\t%d clients currently active\n", winbindd_num_clients()));
83 if (DEBUGLEVEL >= 2 && winbindd_num_clients()) {
84 DEBUG(2, ("\tclient list:\n"));
85 for(tmp = winbindd_client_list(); tmp; tmp = tmp->next) {
86 DEBUGADD(2, ("\t\tpid %lu, sock %d\n",
87 (unsigned long)tmp->pid, tmp->sock));
92 /* Print winbindd status to log file */
94 static void print_winbindd_status(void)
99 /* Flush client cache */
101 static void flush_caches(void)
103 /* We need to invalidate cached user list entries on a SIGHUP
104 otherwise cached access denied errors due to restrict anonymous
105 hang around until the sequence number changes. */
107 wcache_invalidate_cache();
110 /* Handle the signal by unlinking socket and exiting */
112 static void terminate(void)
118 /* Remove socket file */
119 pstr_sprintf(path, "%s/%s",
120 WINBINDD_SOCKET_DIR, WINBINDD_SOCKET_NAME);
125 TALLOC_CTX *mem_ctx = talloc_init("end_description");
126 char *description = talloc_describe_all(mem_ctx);
128 DEBUG(3, ("tallocs left:\n%s\n", description));
129 talloc_destroy(mem_ctx);
136 static BOOL do_sigterm;
138 static void termination_handler(int signum)
141 sys_select_signal(signum);
144 static BOOL do_sigusr2;
146 static void sigusr2_handler(int signum)
149 sys_select_signal(SIGUSR2);
152 static BOOL do_sighup;
154 static void sighup_handler(int signum)
157 sys_select_signal(SIGHUP);
160 static BOOL do_sigchld;
162 static void sigchld_handler(int signum)
165 sys_select_signal(SIGCHLD);
168 /* React on 'smbcontrol winbindd reload-config' in the same way as on SIGHUP*/
169 static void msg_reload_services(int msg_type, struct process_id src, void *buf, size_t len)
171 /* Flush various caches */
173 reload_services_file();
176 /* React on 'smbcontrol winbindd shutdown' in the same way as on SIGTERM*/
177 static void msg_shutdown(int msg_type, struct process_id src, void *buf, size_t len)
182 static struct winbindd_dispatch_table {
183 enum winbindd_cmd cmd;
184 void (*fn)(struct winbindd_cli_state *state);
185 const char *winbindd_cmd_name;
186 } dispatch_table[] = {
190 { WINBINDD_GETPWNAM, winbindd_getpwnam, "GETPWNAM" },
191 { WINBINDD_GETPWUID, winbindd_getpwuid, "GETPWUID" },
193 { WINBINDD_SETPWENT, winbindd_setpwent, "SETPWENT" },
194 { WINBINDD_ENDPWENT, winbindd_endpwent, "ENDPWENT" },
195 { WINBINDD_GETPWENT, winbindd_getpwent, "GETPWENT" },
197 { WINBINDD_GETGROUPS, winbindd_getgroups, "GETGROUPS" },
198 { WINBINDD_GETUSERSIDS, winbindd_getusersids, "GETUSERSIDS" },
199 { WINBINDD_GETUSERDOMGROUPS, winbindd_getuserdomgroups,
200 "GETUSERDOMGROUPS" },
202 /* Group functions */
204 { WINBINDD_GETGRNAM, winbindd_getgrnam, "GETGRNAM" },
205 { WINBINDD_GETGRGID, winbindd_getgrgid, "GETGRGID" },
206 { WINBINDD_SETGRENT, winbindd_setgrent, "SETGRENT" },
207 { WINBINDD_ENDGRENT, winbindd_endgrent, "ENDGRENT" },
208 { WINBINDD_GETGRENT, winbindd_getgrent, "GETGRENT" },
209 { WINBINDD_GETGRLST, winbindd_getgrent, "GETGRLST" },
211 /* PAM auth functions */
213 { WINBINDD_PAM_AUTH, winbindd_pam_auth, "PAM_AUTH" },
214 { WINBINDD_PAM_AUTH_CRAP, winbindd_pam_auth_crap, "AUTH_CRAP" },
215 { WINBINDD_PAM_CHAUTHTOK, winbindd_pam_chauthtok, "CHAUTHTOK" },
216 { WINBINDD_PAM_LOGOFF, winbindd_pam_logoff, "PAM_LOGOFF" },
217 { WINBINDD_PAM_CHNG_PSWD_AUTH_CRAP, winbindd_pam_chng_pswd_auth_crap, "CHNG_PSWD_AUTH_CRAP" },
219 /* Enumeration functions */
221 { WINBINDD_LIST_USERS, winbindd_list_users, "LIST_USERS" },
222 { WINBINDD_LIST_GROUPS, winbindd_list_groups, "LIST_GROUPS" },
223 { WINBINDD_LIST_TRUSTDOM, winbindd_list_trusted_domains,
225 { WINBINDD_SHOW_SEQUENCE, winbindd_show_sequence, "SHOW_SEQUENCE" },
227 /* SID related functions */
229 { WINBINDD_LOOKUPSID, winbindd_lookupsid, "LOOKUPSID" },
230 { WINBINDD_LOOKUPNAME, winbindd_lookupname, "LOOKUPNAME" },
231 { WINBINDD_LOOKUPRIDS, winbindd_lookuprids, "LOOKUPRIDS" },
233 /* Lookup related functions */
235 { WINBINDD_SID_TO_UID, winbindd_sid_to_uid, "SID_TO_UID" },
236 { WINBINDD_SID_TO_GID, winbindd_sid_to_gid, "SID_TO_GID" },
237 { WINBINDD_UID_TO_SID, winbindd_uid_to_sid, "UID_TO_SID" },
238 { WINBINDD_GID_TO_SID, winbindd_gid_to_sid, "GID_TO_SID" },
239 { WINBINDD_ALLOCATE_UID, winbindd_allocate_uid, "ALLOCATE_UID" },
240 { WINBINDD_ALLOCATE_GID, winbindd_allocate_gid, "ALLOCATE_GID" },
244 { WINBINDD_CHECK_MACHACC, winbindd_check_machine_acct, "CHECK_MACHACC" },
245 { WINBINDD_PING, winbindd_ping, "PING" },
246 { WINBINDD_INFO, winbindd_info, "INFO" },
247 { WINBINDD_INTERFACE_VERSION, winbindd_interface_version,
248 "INTERFACE_VERSION" },
249 { WINBINDD_DOMAIN_NAME, winbindd_domain_name, "DOMAIN_NAME" },
250 { WINBINDD_DOMAIN_INFO, winbindd_domain_info, "DOMAIN_INFO" },
251 { WINBINDD_NETBIOS_NAME, winbindd_netbios_name, "NETBIOS_NAME" },
252 { WINBINDD_PRIV_PIPE_DIR, winbindd_priv_pipe_dir,
253 "WINBINDD_PRIV_PIPE_DIR" },
254 { WINBINDD_GETDCNAME, winbindd_getdcname, "GETDCNAME" },
256 /* Credential cache access */
257 { WINBINDD_CCACHE_NTLMAUTH, winbindd_ccache_ntlm_auth, "NTLMAUTH" },
261 { WINBINDD_WINS_BYNAME, winbindd_wins_byname, "WINS_BYNAME" },
262 { WINBINDD_WINS_BYIP, winbindd_wins_byip, "WINS_BYIP" },
266 { WINBINDD_NUM_CMDS, NULL, "NONE" }
269 static void process_request(struct winbindd_cli_state *state)
271 struct winbindd_dispatch_table *table = dispatch_table;
273 /* Free response data - we may be interrupted and receive another
274 command before being able to send this data off. */
276 SAFE_FREE(state->response.extra_data.data);
278 ZERO_STRUCT(state->response);
280 state->response.result = WINBINDD_PENDING;
281 state->response.length = sizeof(struct winbindd_response);
283 state->mem_ctx = talloc_init("winbind request");
284 if (state->mem_ctx == NULL)
287 /* Process command */
289 for (table = dispatch_table; table->fn; table++) {
290 if (state->request.cmd == table->cmd) {
291 DEBUG(10,("process_request: request fn %s\n",
292 table->winbindd_cmd_name ));
299 DEBUG(10,("process_request: unknown request fn number %d\n",
300 (int)state->request.cmd ));
301 request_error(state);
306 * A list of file descriptors being monitored by select in the main processing
307 * loop. fd_event->handler is called whenever the socket is readable/writable.
310 static struct fd_event *fd_events = NULL;
312 void add_fd_event(struct fd_event *ev)
314 struct fd_event *match;
316 /* only add unique fd_event structs */
318 for (match=fd_events; match; match=match->next ) {
320 SMB_ASSERT( match != ev );
327 DLIST_ADD(fd_events, ev);
330 void remove_fd_event(struct fd_event *ev)
332 DLIST_REMOVE(fd_events, ev);
336 * Handler for fd_events to complete a read/write request, set up by
337 * setup_async_read/setup_async_write.
340 static void rw_callback(struct fd_event *event, int flags)
345 todo = event->length - event->done;
347 if (event->flags & EVENT_FD_WRITE) {
348 SMB_ASSERT(flags == EVENT_FD_WRITE);
349 done = sys_write(event->fd,
350 &((char *)event->data)[event->done],
355 event->finished(event->private_data, False);
360 if (event->flags & EVENT_FD_READ) {
361 SMB_ASSERT(flags == EVENT_FD_READ);
362 done = sys_read(event->fd, &((char *)event->data)[event->done],
367 event->finished(event->private_data, False);
374 if (event->done == event->length) {
376 event->finished(event->private_data, True);
381 * Request an async read/write on a fd_event structure. (*finished) is called
382 * when the request is completed or an error had occurred.
385 void setup_async_read(struct fd_event *event, void *data, size_t length,
386 void (*finished)(void *private_data, BOOL success),
389 SMB_ASSERT(event->flags == 0);
391 event->length = length;
393 event->handler = rw_callback;
394 event->finished = finished;
395 event->private_data = private_data;
396 event->flags = EVENT_FD_READ;
399 void setup_async_write(struct fd_event *event, void *data, size_t length,
400 void (*finished)(void *private_data, BOOL success),
403 SMB_ASSERT(event->flags == 0);
405 event->length = length;
407 event->handler = rw_callback;
408 event->finished = finished;
409 event->private_data = private_data;
410 event->flags = EVENT_FD_WRITE;
414 * This is the main event loop of winbind requests. It goes through a
415 * state-machine of 3 read/write requests, 4 if you have extra data to send.
417 * An idle winbind client has a read request of 4 bytes outstanding,
418 * finalizing function is request_len_recv, checking the length. request_recv
419 * then processes the packet. The processing function then at some point has
420 * to call request_finished which schedules sending the response.
423 static void request_len_recv(void *private_data, BOOL success);
424 static void request_recv(void *private_data, BOOL success);
425 static void request_main_recv(void *private_data, BOOL success);
426 static void request_finished(struct winbindd_cli_state *state);
427 void request_finished_cont(void *private_data, BOOL success);
428 static void response_main_sent(void *private_data, BOOL success);
429 static void response_extra_sent(void *private_data, BOOL success);
431 static void response_extra_sent(void *private_data, BOOL success)
433 struct winbindd_cli_state *state =
434 talloc_get_type_abort(private_data, struct winbindd_cli_state);
436 if (state->mem_ctx != NULL) {
437 talloc_destroy(state->mem_ctx);
438 state->mem_ctx = NULL;
442 state->finished = True;
446 SAFE_FREE(state->request.extra_data.data);
447 SAFE_FREE(state->response.extra_data.data);
449 setup_async_read(&state->fd_event, &state->request, sizeof(uint32),
450 request_len_recv, state);
453 static void response_main_sent(void *private_data, BOOL success)
455 struct winbindd_cli_state *state =
456 talloc_get_type_abort(private_data, struct winbindd_cli_state);
459 state->finished = True;
463 if (state->response.length == sizeof(state->response)) {
464 if (state->mem_ctx != NULL) {
465 talloc_destroy(state->mem_ctx);
466 state->mem_ctx = NULL;
469 setup_async_read(&state->fd_event, &state->request,
470 sizeof(uint32), request_len_recv, state);
474 setup_async_write(&state->fd_event, state->response.extra_data.data,
475 state->response.length - sizeof(state->response),
476 response_extra_sent, state);
479 static void request_finished(struct winbindd_cli_state *state)
481 setup_async_write(&state->fd_event, &state->response,
482 sizeof(state->response), response_main_sent, state);
485 void request_error(struct winbindd_cli_state *state)
487 SMB_ASSERT(state->response.result == WINBINDD_PENDING);
488 state->response.result = WINBINDD_ERROR;
489 request_finished(state);
492 void request_ok(struct winbindd_cli_state *state)
494 SMB_ASSERT(state->response.result == WINBINDD_PENDING);
495 state->response.result = WINBINDD_OK;
496 request_finished(state);
499 void request_finished_cont(void *private_data, BOOL success)
501 struct winbindd_cli_state *state =
502 talloc_get_type_abort(private_data, struct winbindd_cli_state);
507 request_error(state);
510 static void request_len_recv(void *private_data, BOOL success)
512 struct winbindd_cli_state *state =
513 talloc_get_type_abort(private_data, struct winbindd_cli_state);
516 state->finished = True;
520 if (*(uint32 *)(&state->request) != sizeof(state->request)) {
521 DEBUG(0,("request_len_recv: Invalid request size received: %d\n",
522 *(uint32 *)(&state->request)));
523 state->finished = True;
527 setup_async_read(&state->fd_event, (uint32 *)(&state->request)+1,
528 sizeof(state->request) - sizeof(uint32),
529 request_main_recv, state);
532 static void request_main_recv(void *private_data, BOOL success)
534 struct winbindd_cli_state *state =
535 talloc_get_type_abort(private_data, struct winbindd_cli_state);
538 state->finished = True;
542 if (state->request.extra_len == 0) {
543 state->request.extra_data.data = NULL;
544 request_recv(state, True);
548 if ((!state->privileged) &&
549 (state->request.extra_len > WINBINDD_MAX_EXTRA_DATA)) {
550 DEBUG(3, ("Got request with %d bytes extra data on "
551 "unprivileged socket\n", (int)state->request.extra_len));
552 state->request.extra_data.data = NULL;
553 state->finished = True;
557 state->request.extra_data.data =
558 SMB_MALLOC_ARRAY(char, state->request.extra_len + 1);
560 if (state->request.extra_data.data == NULL) {
561 DEBUG(0, ("malloc failed\n"));
562 state->finished = True;
566 /* Ensure null termination */
567 state->request.extra_data.data[state->request.extra_len] = '\0';
569 setup_async_read(&state->fd_event, state->request.extra_data.data,
570 state->request.extra_len, request_recv, state);
573 static void request_recv(void *private_data, BOOL success)
575 struct winbindd_cli_state *state =
576 talloc_get_type_abort(private_data, struct winbindd_cli_state);
579 state->finished = True;
583 process_request(state);
586 /* Process a new connection by adding it to the client connection list */
588 static void new_connection(int listen_sock, BOOL privileged)
590 struct sockaddr_un sunaddr;
591 struct winbindd_cli_state *state;
595 /* Accept connection */
597 len = sizeof(sunaddr);
600 sock = accept(listen_sock, (struct sockaddr *)&sunaddr, &len);
601 } while (sock == -1 && errno == EINTR);
606 DEBUG(6,("accepted socket %d\n", sock));
608 /* Create new connection structure */
610 if ((state = TALLOC_ZERO_P(NULL, struct winbindd_cli_state)) == NULL)
615 state->last_access = time(NULL);
617 state->privileged = privileged;
619 state->fd_event.fd = state->sock;
620 state->fd_event.flags = 0;
621 add_fd_event(&state->fd_event);
623 setup_async_read(&state->fd_event, &state->request, sizeof(uint32),
624 request_len_recv, state);
626 /* Add to connection list */
628 winbindd_add_client(state);
631 /* Remove a client connection from client connection list */
633 static void remove_client(struct winbindd_cli_state *state)
635 /* It's a dead client - hold a funeral */
643 /* Free any getent state */
645 free_getent_state(state->getpwent_state);
646 free_getent_state(state->getgrent_state);
648 /* We may have some extra data that was not freed if the
649 client was killed unexpectedly */
651 SAFE_FREE(state->response.extra_data.data);
653 if (state->mem_ctx != NULL) {
654 talloc_destroy(state->mem_ctx);
655 state->mem_ctx = NULL;
658 remove_fd_event(&state->fd_event);
660 /* Remove from list and free */
662 winbindd_remove_client(state);
668 /* Shutdown client connection which has been idle for the longest time */
670 static BOOL remove_idle_client(void)
672 struct winbindd_cli_state *state, *remove_state = NULL;
673 time_t last_access = 0;
676 for (state = winbindd_client_list(); state; state = state->next) {
677 if (state->response.result != WINBINDD_PENDING &&
678 !state->getpwent_state && !state->getgrent_state) {
680 if (!last_access || state->last_access < last_access) {
681 last_access = state->last_access;
682 remove_state = state;
688 DEBUG(5,("Found %d idle client connections, shutting down sock %d, pid %u\n",
689 nidle, remove_state->sock, (unsigned int)remove_state->pid));
690 remove_client(remove_state);
697 /* Process incoming clients on listen_sock. We use a tricky non-blocking,
698 non-forking, non-threaded model which allows us to handle many
699 simultaneous connections while remaining impervious to many denial of
702 static void process_loop(void)
704 struct winbindd_cli_state *state;
707 int maxfd, listen_sock, listen_priv_sock, selret;
708 struct timeval timeout;
710 /* We'll be doing this a lot */
712 /* Handle messages */
716 /* refresh the trusted domain cache */
718 rescan_trusted_domains();
720 /* Free up temporary memory */
723 main_loop_TALLOC_FREE();
725 /* Initialise fd lists for select() */
727 listen_sock = open_winbindd_socket();
728 listen_priv_sock = open_winbindd_priv_socket();
730 if (listen_sock == -1 || listen_priv_sock == -1) {
731 perror("open_winbind_socket");
735 maxfd = MAX(listen_sock, listen_priv_sock);
739 FD_SET(listen_sock, &r_fds);
740 FD_SET(listen_priv_sock, &r_fds);
742 timeout.tv_sec = WINBINDD_ESTABLISH_LOOP;
745 /* Set up client readers and writers */
747 state = winbindd_client_list();
751 struct winbindd_cli_state *next = state->next;
753 /* Dispose of client connection if it is marked as
757 remove_client(state);
762 for (ev = fd_events; ev; ev = ev->next) {
763 if (ev->flags & EVENT_FD_READ) {
764 FD_SET(ev->fd, &r_fds);
765 maxfd = MAX(ev->fd, maxfd);
767 if (ev->flags & EVENT_FD_WRITE) {
768 FD_SET(ev->fd, &w_fds);
769 maxfd = MAX(ev->fd, maxfd);
775 selret = sys_select(maxfd + 1, &r_fds, &w_fds, NULL, &timeout);
782 if (errno == EINTR) {
786 /* Select error, something is badly wrong */
796 struct fd_event *next = ev->next;
798 if (FD_ISSET(ev->fd, &r_fds))
799 flags |= EVENT_FD_READ;
800 if (FD_ISSET(ev->fd, &w_fds))
801 flags |= EVENT_FD_WRITE;
803 ev->handler(ev, flags);
807 if (FD_ISSET(listen_sock, &r_fds)) {
808 while (winbindd_num_clients() >
809 WINBINDD_MAX_SIMULTANEOUS_CLIENTS - 1) {
810 DEBUG(5,("winbindd: Exceeding %d client "
811 "connections, removing idle "
813 WINBINDD_MAX_SIMULTANEOUS_CLIENTS));
814 if (!remove_idle_client()) {
815 DEBUG(0,("winbindd: Exceeding %d "
816 "client connections, no idle "
817 "connection found\n",
818 WINBINDD_MAX_SIMULTANEOUS_CLIENTS));
822 /* new, non-privileged connection */
823 new_connection(listen_sock, False);
826 if (FD_ISSET(listen_priv_sock, &r_fds)) {
827 while (winbindd_num_clients() >
828 WINBINDD_MAX_SIMULTANEOUS_CLIENTS - 1) {
829 DEBUG(5,("winbindd: Exceeding %d client "
830 "connections, removing idle "
832 WINBINDD_MAX_SIMULTANEOUS_CLIENTS));
833 if (!remove_idle_client()) {
834 DEBUG(0,("winbindd: Exceeding %d "
835 "client connections, no idle "
836 "connection found\n",
837 WINBINDD_MAX_SIMULTANEOUS_CLIENTS));
841 /* new, privileged connection */
842 new_connection(listen_priv_sock, True);
848 winbindd_check_cache_size(time(NULL));
851 /* Check signal handling things */
858 DEBUG(3, ("got SIGHUP\n"));
860 msg_reload_services(MSG_SMB_CONF_UPDATED, pid_to_procid(0), NULL, 0);
865 print_winbindd_status();
874 while ((pid = sys_waitpid(-1, NULL, WNOHANG)) > 0) {
875 winbind_child_died(pid);
882 struct winbindd_state server_state; /* Server state information */
884 int main(int argc, char **argv)
887 static BOOL Fork = True;
888 static BOOL log_stdout = False;
889 static BOOL no_process_group = False;
890 struct poptOption long_options[] = {
892 { "stdout", 'S', POPT_ARG_VAL, &log_stdout, True, "Log to stdout" },
893 { "foreground", 'F', POPT_ARG_VAL, &Fork, False, "Daemon in foreground mode" },
894 { "no-process-group", 0, POPT_ARG_VAL, &no_process_group, True, "Don't create a new process group" },
895 { "interactive", 'i', POPT_ARG_NONE, NULL, 'i', "Interactive mode" },
896 { "no-caching", 'n', POPT_ARG_VAL, &opt_nocache, True, "Disable caching" },
903 /* glibc (?) likes to print "User defined signal 1" and exit if a
904 SIGUSR[12] is received before a handler is installed */
906 CatchSignal(SIGUSR1, SIG_IGN);
907 CatchSignal(SIGUSR2, SIG_IGN);
909 fault_setup((void (*)(void *))fault_quit );
910 dump_core_setup("winbindd");
914 /* Initialise for running in non-root mode */
918 set_remote_machine_name("winbindd", False);
920 /* Set environment variable so we don't recursively call ourselves.
921 This may also be useful interactively. */
923 if ( !winbind_off() ) {
924 DEBUG(0,("Failed to disable recusive winbindd calls. Exiting.\n"));
928 /* Initialise samba/rpc client stuff */
930 pc = poptGetContext("winbindd", argc, (const char **)argv, long_options,
931 POPT_CONTEXT_KEEP_FIRST);
933 while ((opt = poptGetNextOpt(pc)) != -1) {
935 /* Don't become a daemon */
945 if (log_stdout && Fork) {
946 printf("Can't log to stdout (-S) unless daemon is in foreground +(-F) or interactive (-i)\n");
947 poptPrintUsage(pc, stderr, 0);
951 if (!override_logfile) {
952 pstr_sprintf(logfile, "%s/log.winbindd", dyn_LOGFILEBASE);
953 lp_set_logfile(logfile);
955 setup_logging("winbindd", log_stdout);
958 DEBUG(1, ("winbindd version %s started.\n", SAMBA_VERSION_STRING) );
959 DEBUGADD( 1, ( "Copyright The Samba Team 2000-2004\n" ) );
961 if (!reload_services_file()) {
962 DEBUG(0, ("error opening config file\n"));
966 if (!directory_exist(lp_lockdir(), NULL)) {
967 mkdir(lp_lockdir(), 0755);
977 if (!secrets_init()) {
979 DEBUG(0,("Could not initialize domain trust account secrets. Giving up\n"));
983 /* Enable netbios namecache */
987 /* Check winbindd parameters are valid */
989 ZERO_STRUCT(server_state);
991 /* Winbind daemon initialisation */
993 if ( (!winbindd_param_init()) || (!winbindd_upgrade_idmap()) ||
994 (!idmap_init(lp_idmap_backend())) ) {
995 DEBUG(1, ("Could not init idmap -- netlogon proxy only\n"));
996 idmap_set_proxyonly();
999 /* Unblock all signals we are interested in as they may have been
1000 blocked by the parent process. */
1002 BlockSignals(False, SIGINT);
1003 BlockSignals(False, SIGQUIT);
1004 BlockSignals(False, SIGTERM);
1005 BlockSignals(False, SIGUSR1);
1006 BlockSignals(False, SIGUSR2);
1007 BlockSignals(False, SIGHUP);
1008 BlockSignals(False, SIGCHLD);
1010 /* Setup signal handlers */
1012 CatchSignal(SIGINT, termination_handler); /* Exit on these sigs */
1013 CatchSignal(SIGQUIT, termination_handler);
1014 CatchSignal(SIGTERM, termination_handler);
1015 CatchSignal(SIGCHLD, sigchld_handler);
1017 CatchSignal(SIGPIPE, SIG_IGN); /* Ignore sigpipe */
1019 CatchSignal(SIGUSR2, sigusr2_handler); /* Debugging sigs */
1020 CatchSignal(SIGHUP, sighup_handler);
1023 become_daemon(Fork, no_process_group);
1025 pidfile_create("winbindd");
1029 * If we're interactive we want to set our own process group for
1030 * signal management.
1032 if (interactive && !no_process_group)
1033 setpgid( (pid_t)0, (pid_t)0);
1038 /* Initialise messaging system */
1040 if (!message_init()) {
1041 DEBUG(0, ("unable to initialize messaging system\n"));
1045 /* React on 'smbcontrol winbindd reload-config' in the same way
1046 as to SIGHUP signal */
1047 message_register(MSG_SMB_CONF_UPDATED, msg_reload_services);
1048 message_register(MSG_SHUTDOWN, msg_shutdown);
1050 /* Handle online/offline messages. */
1051 message_register(MSG_WINBIND_OFFLINE,winbind_msg_offline);
1052 message_register(MSG_WINBIND_ONLINE,winbind_msg_online);
1053 message_register(MSG_WINBIND_ONLINESTATUS,winbind_msg_onlinestatus);
1055 poptFreeContext(pc);
1057 netsamlogon_cache_init(); /* Non-critical */
1059 if (!init_domain_list()) {
1060 DEBUG(0,("unable to initalize domain list\n"));
1066 smb_nscd_flush_user_cache();
1067 smb_nscd_flush_group_cache();
1069 /* Loop waiting for requests */
1074 trustdom_cache_shutdown();