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 3 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, see <http://www.gnu.org/licenses/>.
27 #include "../../nsswitch/libwbclient/wbc_async.h"
30 #define DBGC_CLASS DBGC_WINBIND
32 static void remove_client(struct winbindd_cli_state *state);
34 static bool opt_nocache = False;
35 static bool interactive = False;
37 extern bool override_logfile;
39 struct event_context *winbind_event_context(void)
41 static struct event_context *ctx;
43 if (!ctx && !(ctx = event_context_init(NULL))) {
44 smb_panic("Could not init winbind event context");
49 struct messaging_context *winbind_messaging_context(void)
51 static struct messaging_context *ctx;
54 ctx = messaging_init(NULL, server_id_self(),
55 winbind_event_context());
58 DEBUG(0, ("Could not init winbind messaging context.\n"));
63 /* Reload configuration */
65 static bool reload_services_file(const char *lfile)
70 const char *fname = lp_configfile();
72 if (file_exist(fname) && !strcsequal(fname,get_dyn_CONFIGFILE())) {
73 set_dyn_CONFIGFILE(fname);
77 /* if this is a child, restore the logfile to the special
78 name - <domain>, idmap, etc. */
79 if (lfile && *lfile) {
80 lp_set_logfile(lfile);
84 ret = lp_load(get_dyn_CONFIGFILE(),False,False,True,True);
93 /**************************************************************************** **
95 **************************************************************************** */
97 static void fault_quit(void)
102 static void winbindd_status(void)
104 struct winbindd_cli_state *tmp;
106 DEBUG(0, ("winbindd status:\n"));
108 /* Print client state information */
110 DEBUG(0, ("\t%d clients currently active\n", winbindd_num_clients()));
112 if (DEBUGLEVEL >= 2 && winbindd_num_clients()) {
113 DEBUG(2, ("\tclient list:\n"));
114 for(tmp = winbindd_client_list(); tmp; tmp = tmp->next) {
115 DEBUGADD(2, ("\t\tpid %lu, sock %d\n",
116 (unsigned long)tmp->pid, tmp->sock));
121 /* Print winbindd status to log file */
123 static void print_winbindd_status(void)
128 /* Flush client cache */
130 static void flush_caches(void)
132 /* We need to invalidate cached user list entries on a SIGHUP
133 otherwise cached access denied errors due to restrict anonymous
134 hang around until the sequence number changes. */
136 if (!wcache_invalidate_cache()) {
137 DEBUG(0, ("invalidating the cache failed; revalidate the cache\n"));
138 if (!winbindd_cache_validate_and_initialize()) {
144 /* Handle the signal by unlinking socket and exiting */
146 static void terminate(bool is_parent)
149 /* When parent goes away we should
150 * remove the socket file. Not so
151 * when children terminate.
155 if (asprintf(&path, "%s/%s",
156 get_winbind_pipe_dir(), WINBINDD_SOCKET_NAME) > 0) {
164 trustdom_cache_shutdown();
166 gencache_stabilize();
170 TALLOC_CTX *mem_ctx = talloc_init("end_description");
171 char *description = talloc_describe_all(mem_ctx);
173 DEBUG(3, ("tallocs left:\n%s\n", description));
174 talloc_destroy(mem_ctx);
185 static void winbindd_sig_term_handler(struct tevent_context *ev,
186 struct tevent_signal *se,
192 bool *is_parent = talloc_get_type_abort(private_data, bool);
194 DEBUG(0,("Got sig[%d] terminate (is_parent=%d)\n",
195 signum, (int)*is_parent));
196 terminate(*is_parent);
199 bool winbindd_setup_sig_term_handler(bool parent)
201 struct tevent_signal *se;
204 is_parent = talloc(winbind_event_context(), bool);
211 se = tevent_add_signal(winbind_event_context(),
214 winbindd_sig_term_handler,
217 DEBUG(0,("failed to setup SIGTERM handler"));
218 talloc_free(is_parent);
222 se = tevent_add_signal(winbind_event_context(),
225 winbindd_sig_term_handler,
228 DEBUG(0,("failed to setup SIGINT handler"));
229 talloc_free(is_parent);
233 se = tevent_add_signal(winbind_event_context(),
236 winbindd_sig_term_handler,
239 DEBUG(0,("failed to setup SIGINT handler"));
240 talloc_free(is_parent);
247 static void winbindd_sig_hup_handler(struct tevent_context *ev,
248 struct tevent_signal *se,
254 const char *file = (const char *)private_data;
256 DEBUG(1,("Reloading services after SIGHUP\n"));
258 reload_services_file(file);
261 bool winbindd_setup_sig_hup_handler(const char *lfile)
263 struct tevent_signal *se;
267 file = talloc_strdup(winbind_event_context(),
274 se = tevent_add_signal(winbind_event_context(),
275 winbind_event_context(),
277 winbindd_sig_hup_handler,
286 static void winbindd_sig_chld_handler(struct tevent_context *ev,
287 struct tevent_signal *se,
295 while ((pid = sys_waitpid(-1, NULL, WNOHANG)) > 0) {
296 winbind_child_died(pid);
300 static bool winbindd_setup_sig_chld_handler(void)
302 struct tevent_signal *se;
304 se = tevent_add_signal(winbind_event_context(),
305 winbind_event_context(),
307 winbindd_sig_chld_handler,
316 static void winbindd_sig_usr2_handler(struct tevent_context *ev,
317 struct tevent_signal *se,
323 print_winbindd_status();
326 static bool winbindd_setup_sig_usr2_handler(void)
328 struct tevent_signal *se;
330 se = tevent_add_signal(winbind_event_context(),
331 winbind_event_context(),
333 winbindd_sig_usr2_handler,
342 /* React on 'smbcontrol winbindd reload-config' in the same way as on SIGHUP*/
343 static void msg_reload_services(struct messaging_context *msg,
346 struct server_id server_id,
349 /* Flush various caches */
351 reload_services_file((const char *) private_data);
354 /* React on 'smbcontrol winbindd shutdown' in the same way as on SIGTERM*/
355 static void msg_shutdown(struct messaging_context *msg,
358 struct server_id server_id,
361 /* only the parent waits for this message */
362 DEBUG(0,("Got shutdown message\n"));
367 static void winbind_msg_validate_cache(struct messaging_context *msg_ctx,
370 struct server_id server_id,
375 struct sigaction act;
376 struct sigaction oldact;
378 DEBUG(10, ("winbindd_msg_validate_cache: got validate-cache "
382 * call the validation code from a child:
383 * so we don't block the main winbindd and the validation
384 * code can safely use fork/waitpid...
387 child_pid = sys_fork();
389 if (child_pid == -1) {
390 DEBUG(1, ("winbind_msg_validate_cache: Could not fork: %s\n",
395 if (child_pid != 0) {
397 DEBUG(5, ("winbind_msg_validate_cache: child created with "
398 "pid %d.\n", (int)child_pid));
404 /* install default SIGCHLD handler: validation code uses fork/waitpid */
406 act.sa_handler = SIG_DFL;
408 /* We *want* SIGALRM to interrupt a system call. */
409 act.sa_flags = SA_RESTART;
411 sigemptyset(&act.sa_mask);
412 sigaddset(&act.sa_mask,SIGCHLD);
413 sigaction(SIGCHLD,&act,&oldact);
415 ret = (uint8)winbindd_validate_cache_nobackup();
416 DEBUG(10, ("winbindd_msg_validata_cache: got return value %d\n", ret));
417 messaging_send_buf(msg_ctx, server_id, MSG_WINBIND_VALIDATE_CACHE, &ret,
422 static struct winbindd_dispatch_table {
423 enum winbindd_cmd cmd;
424 void (*fn)(struct winbindd_cli_state *state);
425 const char *winbindd_cmd_name;
426 } dispatch_table[] = {
430 { WINBINDD_GETPWNAM, winbindd_getpwnam, "GETPWNAM" },
431 { WINBINDD_GETPWUID, winbindd_getpwuid, "GETPWUID" },
432 { WINBINDD_GETPWSID, winbindd_getpwsid, "GETPWSID" },
434 { WINBINDD_SETPWENT, winbindd_setpwent, "SETPWENT" },
435 { WINBINDD_ENDPWENT, winbindd_endpwent, "ENDPWENT" },
436 { WINBINDD_GETPWENT, winbindd_getpwent, "GETPWENT" },
438 { WINBINDD_GETGROUPS, winbindd_getgroups, "GETGROUPS" },
439 { WINBINDD_GETUSERSIDS, winbindd_getusersids, "GETUSERSIDS" },
440 { WINBINDD_GETUSERDOMGROUPS, winbindd_getuserdomgroups,
441 "GETUSERDOMGROUPS" },
442 { WINBINDD_GETSIDALIASES, winbindd_getsidaliases,
443 "LOOKUPUSERALIASES" },
445 /* Group functions */
447 { WINBINDD_GETGRNAM, winbindd_getgrnam, "GETGRNAM" },
448 { WINBINDD_GETGRGID, winbindd_getgrgid, "GETGRGID" },
449 { WINBINDD_SETGRENT, winbindd_setgrent, "SETGRENT" },
450 { WINBINDD_ENDGRENT, winbindd_endgrent, "ENDGRENT" },
451 { WINBINDD_GETGRENT, winbindd_getgrent, "GETGRENT" },
452 { WINBINDD_GETGRLST, winbindd_getgrent, "GETGRLST" },
454 /* PAM auth functions */
456 { WINBINDD_PAM_AUTH, winbindd_pam_auth, "PAM_AUTH" },
457 { WINBINDD_PAM_AUTH_CRAP, winbindd_pam_auth_crap, "AUTH_CRAP" },
458 { WINBINDD_PAM_CHAUTHTOK, winbindd_pam_chauthtok, "CHAUTHTOK" },
459 { WINBINDD_PAM_LOGOFF, winbindd_pam_logoff, "PAM_LOGOFF" },
460 { WINBINDD_PAM_CHNG_PSWD_AUTH_CRAP, winbindd_pam_chng_pswd_auth_crap, "CHNG_PSWD_AUTH_CRAP" },
462 /* Enumeration functions */
464 { WINBINDD_LIST_USERS, winbindd_list_users, "LIST_USERS" },
465 { WINBINDD_LIST_GROUPS, winbindd_list_groups, "LIST_GROUPS" },
466 { WINBINDD_LIST_TRUSTDOM, winbindd_list_trusted_domains,
468 { WINBINDD_SHOW_SEQUENCE, winbindd_show_sequence, "SHOW_SEQUENCE" },
470 /* SID related functions */
472 { WINBINDD_LOOKUPNAME, winbindd_lookupname, "LOOKUPNAME" },
473 { WINBINDD_LOOKUPRIDS, winbindd_lookuprids, "LOOKUPRIDS" },
475 /* Lookup related functions */
477 { WINBINDD_SID_TO_UID, winbindd_sid_to_uid, "SID_TO_UID" },
478 { WINBINDD_SID_TO_GID, winbindd_sid_to_gid, "SID_TO_GID" },
479 { WINBINDD_UID_TO_SID, winbindd_uid_to_sid, "UID_TO_SID" },
480 { WINBINDD_GID_TO_SID, winbindd_gid_to_sid, "GID_TO_SID" },
481 { WINBINDD_ALLOCATE_UID, winbindd_allocate_uid, "ALLOCATE_UID" },
482 { WINBINDD_ALLOCATE_GID, winbindd_allocate_gid, "ALLOCATE_GID" },
483 { WINBINDD_SET_MAPPING, winbindd_set_mapping, "SET_MAPPING" },
484 { WINBINDD_REMOVE_MAPPING, winbindd_remove_mapping, "REMOVE_MAPPING" },
485 { WINBINDD_SET_HWM, winbindd_set_hwm, "SET_HWMS" },
489 { WINBINDD_CHECK_MACHACC, winbindd_check_machine_acct, "CHECK_MACHACC" },
490 { WINBINDD_INFO, winbindd_info, "INFO" },
491 { WINBINDD_INTERFACE_VERSION, winbindd_interface_version,
492 "INTERFACE_VERSION" },
493 { WINBINDD_DOMAIN_NAME, winbindd_domain_name, "DOMAIN_NAME" },
494 { WINBINDD_DOMAIN_INFO, winbindd_domain_info, "DOMAIN_INFO" },
495 { WINBINDD_NETBIOS_NAME, winbindd_netbios_name, "NETBIOS_NAME" },
496 { WINBINDD_PRIV_PIPE_DIR, winbindd_priv_pipe_dir,
497 "WINBINDD_PRIV_PIPE_DIR" },
498 { WINBINDD_GETDCNAME, winbindd_getdcname, "GETDCNAME" },
499 { WINBINDD_DSGETDCNAME, winbindd_dsgetdcname, "DSGETDCNAME" },
501 /* Credential cache access */
502 { WINBINDD_CCACHE_NTLMAUTH, winbindd_ccache_ntlm_auth, "NTLMAUTH" },
506 { WINBINDD_WINS_BYNAME, winbindd_wins_byname, "WINS_BYNAME" },
507 { WINBINDD_WINS_BYIP, winbindd_wins_byip, "WINS_BYIP" },
511 { WINBINDD_NUM_CMDS, NULL, "NONE" }
514 struct winbindd_async_dispatch_table {
515 enum winbindd_cmd cmd;
516 const char *cmd_name;
517 struct tevent_req *(*send_req)(TALLOC_CTX *mem_ctx,
518 struct tevent_context *ev,
519 struct winbindd_request *request);
520 NTSTATUS (*recv_req)(struct tevent_req *req,
521 struct winbindd_response *presp);
524 static struct winbindd_async_dispatch_table async_nonpriv_table[] = {
525 { WINBINDD_PING, "PING",
526 wb_ping_send, wb_ping_recv },
527 { WINBINDD_LOOKUPSID, "LOOKUPSID",
528 winbindd_lookupsid_send, winbindd_lookupsid_recv },
530 { 0, NULL, NULL, NULL }
533 static void wb_request_done(struct tevent_req *req);
535 static void process_request(struct winbindd_cli_state *state)
537 struct winbindd_dispatch_table *table = dispatch_table;
538 struct winbindd_async_dispatch_table *atable;
540 state->mem_ctx = talloc_init("winbind request");
541 if (state->mem_ctx == NULL)
544 /* Remember who asked us. */
545 state->pid = state->request->pid;
547 /* Process command */
549 for (atable = async_nonpriv_table; atable->send_req; atable += 1) {
550 if (state->request->cmd == atable->cmd) {
555 if (atable->send_req != NULL) {
556 struct tevent_req *req;
558 DEBUG(10, ("process_request: Handling async request %s\n",
561 req = atable->send_req(state->mem_ctx, winbind_event_context(),
564 DEBUG(0, ("process_request: atable->send failed for "
565 "%s\n", atable->cmd_name));
566 request_error(state);
569 tevent_req_set_callback(req, wb_request_done, state);
570 state->recv_fn = atable->recv_req;
574 state->response = talloc_zero(state->mem_ctx,
575 struct winbindd_response);
576 if (state->response == NULL) {
577 DEBUG(10, ("talloc failed\n"));
578 remove_client(state);
581 state->response->result = WINBINDD_PENDING;
582 state->response->length = sizeof(struct winbindd_response);
584 for (table = dispatch_table; table->fn; table++) {
585 if (state->request->cmd == table->cmd) {
586 DEBUG(10,("process_request: request fn %s\n",
587 table->winbindd_cmd_name ));
594 DEBUG(10,("process_request: unknown request fn number %d\n",
595 (int)state->request->cmd ));
596 request_error(state);
600 static void wb_request_done(struct tevent_req *req)
602 struct winbindd_cli_state *state = tevent_req_callback_data(
603 req, struct winbindd_cli_state);
606 state->response = talloc_zero(state, struct winbindd_response);
607 if (state->response == NULL) {
608 remove_client(state);
611 state->response->result = WINBINDD_PENDING;
612 state->response->length = sizeof(struct winbindd_response);
614 status = state->recv_fn(req, state->response);
616 if (!NT_STATUS_IS_OK(status)) {
617 DEBUG(10, ("returning %s\n", nt_errstr(status)));
618 request_error(state);
625 * This is the main event loop of winbind requests. It goes through a
626 * state-machine of 3 read/write requests, 4 if you have extra data to send.
628 * An idle winbind client has a read request of 4 bytes outstanding,
629 * finalizing function is request_len_recv, checking the length. request_recv
630 * then processes the packet. The processing function then at some point has
631 * to call request_finished which schedules sending the response.
634 static void request_finished(struct winbindd_cli_state *state);
636 static void winbind_client_request_read(struct tevent_req *req);
637 static void winbind_client_response_written(struct tevent_req *req);
639 static void request_finished(struct winbindd_cli_state *state)
641 struct tevent_req *req;
643 TALLOC_FREE(state->request);
645 req = wb_resp_write_send(state, winbind_event_context(),
646 state->out_queue, state->sock,
649 remove_client(state);
652 tevent_req_set_callback(req, winbind_client_response_written, state);
655 static void winbind_client_response_written(struct tevent_req *req)
657 struct winbindd_cli_state *state = tevent_req_callback_data(
658 req, struct winbindd_cli_state);
662 ret = wb_resp_write_recv(req, &err);
665 DEBUG(2, ("Could not write response to client: %s\n",
667 remove_client(state);
671 TALLOC_FREE(state->mem_ctx);
672 state->response = NULL;
674 req = wb_req_read_send(state, winbind_event_context(), state->sock,
675 WINBINDD_MAX_EXTRA_DATA);
677 remove_client(state);
680 tevent_req_set_callback(req, winbind_client_request_read, state);
683 void request_error(struct winbindd_cli_state *state)
685 SMB_ASSERT(state->response->result == WINBINDD_PENDING);
686 state->response->result = WINBINDD_ERROR;
687 request_finished(state);
690 void request_ok(struct winbindd_cli_state *state)
692 SMB_ASSERT(state->response->result == WINBINDD_PENDING);
693 state->response->result = WINBINDD_OK;
694 request_finished(state);
697 /* Process a new connection by adding it to the client connection list */
699 static void new_connection(int listen_sock, bool privileged)
701 struct sockaddr_un sunaddr;
702 struct winbindd_cli_state *state;
703 struct tevent_req *req;
707 /* Accept connection */
709 len = sizeof(sunaddr);
712 sock = accept(listen_sock, (struct sockaddr *)(void *)&sunaddr,
714 } while (sock == -1 && errno == EINTR);
719 DEBUG(6,("accepted socket %d\n", sock));
721 /* Create new connection structure */
723 if ((state = TALLOC_ZERO_P(NULL, struct winbindd_cli_state)) == NULL) {
730 state->out_queue = tevent_queue_create(state, "winbind client reply");
731 if (state->out_queue == NULL) {
737 state->last_access = time(NULL);
739 state->privileged = privileged;
741 req = wb_req_read_send(state, winbind_event_context(), state->sock,
742 WINBINDD_MAX_EXTRA_DATA);
748 tevent_req_set_callback(req, winbind_client_request_read, state);
750 /* Add to connection list */
752 winbindd_add_client(state);
755 static void winbind_client_request_read(struct tevent_req *req)
757 struct winbindd_cli_state *state = tevent_req_callback_data(
758 req, struct winbindd_cli_state);
762 ret = wb_req_read_recv(req, state, &state->request, &err);
765 DEBUG(2, ("Could not read client request: %s\n",
767 remove_client(state);
770 process_request(state);
773 /* Remove a client connection from client connection list */
775 static void remove_client(struct winbindd_cli_state *state)
780 /* It's a dead client - hold a funeral */
786 /* tell client, we are closing ... */
787 nwritten = write(state->sock, &c, sizeof(c));
788 if (nwritten == -1) {
790 * ignore EPIPE error here, because the other end might
791 * have already closed the socket.
793 if (errno != EPIPE) {
794 DEBUG(2, ("final write to client failed: %s\n",
803 /* Free any getent state */
805 free_getent_state(state->getpwent_state);
806 free_getent_state(state->getgrent_state);
808 TALLOC_FREE(state->mem_ctx);
810 /* Remove from list and free */
812 winbindd_remove_client(state);
816 /* Shutdown client connection which has been idle for the longest time */
818 static bool remove_idle_client(void)
820 struct winbindd_cli_state *state, *remove_state = NULL;
821 time_t last_access = 0;
824 for (state = winbindd_client_list(); state; state = state->next) {
825 if (state->response == NULL &&
826 !state->getpwent_state && !state->getgrent_state) {
828 if (!last_access || state->last_access < last_access) {
829 last_access = state->last_access;
830 remove_state = state;
836 DEBUG(5,("Found %d idle client connections, shutting down sock %d, pid %u\n",
837 nidle, remove_state->sock, (unsigned int)remove_state->pid));
838 remove_client(remove_state);
845 struct winbindd_listen_state {
850 static void winbindd_listen_fde_handler(struct tevent_context *ev,
851 struct tevent_fd *fde,
855 struct winbindd_listen_state *s = talloc_get_type_abort(private_data,
856 struct winbindd_listen_state);
858 while (winbindd_num_clients() >
859 WINBINDD_MAX_SIMULTANEOUS_CLIENTS - 1) {
860 DEBUG(5,("winbindd: Exceeding %d client "
861 "connections, removing idle "
863 WINBINDD_MAX_SIMULTANEOUS_CLIENTS));
864 if (!remove_idle_client()) {
865 DEBUG(0,("winbindd: Exceeding %d "
866 "client connections, no idle "
867 "connection found\n",
868 WINBINDD_MAX_SIMULTANEOUS_CLIENTS));
872 new_connection(s->fd, s->privileged);
875 static bool winbindd_setup_listeners(void)
877 struct winbindd_listen_state *pub_state = NULL;
878 struct winbindd_listen_state *priv_state = NULL;
879 struct tevent_fd *fde;
881 pub_state = talloc(winbind_event_context(),
882 struct winbindd_listen_state);
887 pub_state->privileged = false;
888 pub_state->fd = open_winbindd_socket();
889 if (pub_state->fd == -1) {
893 fde = tevent_add_fd(winbind_event_context(), pub_state, pub_state->fd,
894 TEVENT_FD_READ, winbindd_listen_fde_handler,
897 close(pub_state->fd);
900 tevent_fd_set_auto_close(fde);
902 priv_state = talloc(winbind_event_context(),
903 struct winbindd_listen_state);
908 priv_state->privileged = true;
909 priv_state->fd = open_winbindd_priv_socket();
910 if (priv_state->fd == -1) {
914 fde = tevent_add_fd(winbind_event_context(), priv_state,
915 priv_state->fd, TEVENT_FD_READ,
916 winbindd_listen_fde_handler, priv_state);
918 close(priv_state->fd);
921 tevent_fd_set_auto_close(fde);
925 TALLOC_FREE(pub_state);
926 TALLOC_FREE(priv_state);
930 bool winbindd_use_idmap_cache(void)
935 bool winbindd_use_cache(void)
942 int main(int argc, char **argv, char **envp)
944 static bool is_daemon = False;
945 static bool Fork = True;
946 static bool log_stdout = False;
947 static bool no_process_group = False;
951 OPT_NO_PROCESS_GROUP,
954 struct poptOption long_options[] = {
956 { "stdout", 'S', POPT_ARG_NONE, NULL, OPT_LOG_STDOUT, "Log to stdout" },
957 { "foreground", 'F', POPT_ARG_NONE, NULL, OPT_FORK, "Daemon in foreground mode" },
958 { "no-process-group", 0, POPT_ARG_NONE, NULL, OPT_NO_PROCESS_GROUP, "Don't create a new process group" },
959 { "daemon", 'D', POPT_ARG_NONE, NULL, OPT_DAEMON, "Become a daemon (default)" },
960 { "interactive", 'i', POPT_ARG_NONE, NULL, 'i', "Interactive mode" },
961 { "no-caching", 'n', POPT_ARG_NONE, NULL, 'n', "Disable caching" },
967 TALLOC_CTX *frame = talloc_stackframe();
968 struct tevent_timer *te;
970 /* glibc (?) likes to print "User defined signal 1" and exit if a
971 SIGUSR[12] is received before a handler is installed */
973 CatchSignal(SIGUSR1, SIG_IGN);
974 CatchSignal(SIGUSR2, SIG_IGN);
976 fault_setup((void (*)(void *))fault_quit );
977 dump_core_setup("winbindd");
981 /* Initialise for running in non-root mode */
985 set_remote_machine_name("winbindd", False);
987 /* Set environment variable so we don't recursively call ourselves.
988 This may also be useful interactively. */
990 if ( !winbind_off() ) {
991 DEBUG(0,("Failed to disable recusive winbindd calls. Exiting.\n"));
995 /* Initialise samba/rpc client stuff */
997 pc = poptGetContext("winbindd", argc, (const char **)argv, long_options, 0);
999 while ((opt = poptGetNextOpt(pc)) != -1) {
1001 /* Don't become a daemon */
1013 case OPT_NO_PROCESS_GROUP:
1014 no_process_group = true;
1016 case OPT_LOG_STDOUT:
1023 d_fprintf(stderr, "\nInvalid option %s: %s\n\n",
1024 poptBadOption(pc, 0), poptStrerror(opt));
1025 poptPrintUsage(pc, stderr, 0);
1030 if (is_daemon && interactive) {
1031 d_fprintf(stderr,"\nERROR: "
1032 "Option -i|--interactive is not allowed together with -D|--daemon\n\n");
1033 poptPrintUsage(pc, stderr, 0);
1037 if (log_stdout && Fork) {
1038 d_fprintf(stderr, "\nERROR: "
1039 "Can't log to stdout (-S) unless daemon is in foreground +(-F) or interactive (-i)\n\n");
1040 poptPrintUsage(pc, stderr, 0);
1044 poptFreeContext(pc);
1046 if (!override_logfile) {
1048 if (asprintf(&lfile,"%s/log.winbindd",
1049 get_dyn_LOGFILEBASE()) > 0) {
1050 lp_set_logfile(lfile);
1054 setup_logging("winbindd", log_stdout);
1057 DEBUG(0,("winbindd version %s started.\n", samba_version_string()));
1058 DEBUGADD(0,("%s\n", COPYRIGHT_STARTUP_MESSAGE));
1060 if (!lp_load_initial_only(get_dyn_CONFIGFILE())) {
1061 DEBUG(0, ("error opening config file\n"));
1065 /* Initialise messaging system */
1067 if (winbind_messaging_context() == NULL) {
1071 if (!reload_services_file(NULL)) {
1072 DEBUG(0, ("error opening config file\n"));
1076 if (!directory_exist(lp_lockdir())) {
1077 mkdir(lp_lockdir(), 0755);
1087 if (!secrets_init()) {
1089 DEBUG(0,("Could not initialize domain trust account secrets. Giving up\n"));
1093 /* Enable netbios namecache */
1097 /* Unblock all signals we are interested in as they may have been
1098 blocked by the parent process. */
1100 BlockSignals(False, SIGINT);
1101 BlockSignals(False, SIGQUIT);
1102 BlockSignals(False, SIGTERM);
1103 BlockSignals(False, SIGUSR1);
1104 BlockSignals(False, SIGUSR2);
1105 BlockSignals(False, SIGHUP);
1106 BlockSignals(False, SIGCHLD);
1109 become_daemon(Fork, no_process_group);
1111 pidfile_create("winbindd");
1115 * If we're interactive we want to set our own process group for
1116 * signal management.
1118 if (interactive && !no_process_group)
1119 setpgid( (pid_t)0, (pid_t)0);
1124 /* Don't use winbindd_reinit_after_fork here as
1125 * we're just starting up and haven't created any
1126 * winbindd-specific resources we must free yet. JRA.
1129 if (!NT_STATUS_IS_OK(reinit_after_fork(winbind_messaging_context(),
1130 winbind_event_context(),
1132 DEBUG(0,("reinit_after_fork() failed\n"));
1136 /* Setup signal handlers */
1138 if (!winbindd_setup_sig_term_handler(true))
1140 if (!winbindd_setup_sig_hup_handler(NULL))
1142 if (!winbindd_setup_sig_chld_handler())
1144 if (!winbindd_setup_sig_usr2_handler())
1147 CatchSignal(SIGPIPE, SIG_IGN); /* Ignore sigpipe */
1150 * Ensure all cache and idmap caches are consistent
1151 * and initialized before we startup.
1153 if (!winbindd_cache_validate_and_initialize()) {
1157 /* get broadcast messages */
1158 claim_connection(NULL,"",FLAG_MSG_GENERAL|FLAG_MSG_DBWRAP);
1160 /* React on 'smbcontrol winbindd reload-config' in the same way
1161 as to SIGHUP signal */
1162 messaging_register(winbind_messaging_context(), NULL,
1163 MSG_SMB_CONF_UPDATED, msg_reload_services);
1164 messaging_register(winbind_messaging_context(), NULL,
1165 MSG_SHUTDOWN, msg_shutdown);
1167 /* Handle online/offline messages. */
1168 messaging_register(winbind_messaging_context(), NULL,
1169 MSG_WINBIND_OFFLINE, winbind_msg_offline);
1170 messaging_register(winbind_messaging_context(), NULL,
1171 MSG_WINBIND_ONLINE, winbind_msg_online);
1172 messaging_register(winbind_messaging_context(), NULL,
1173 MSG_WINBIND_ONLINESTATUS, winbind_msg_onlinestatus);
1175 messaging_register(winbind_messaging_context(), NULL,
1176 MSG_DUMP_EVENT_LIST, winbind_msg_dump_event_list);
1178 messaging_register(winbind_messaging_context(), NULL,
1179 MSG_WINBIND_VALIDATE_CACHE,
1180 winbind_msg_validate_cache);
1182 messaging_register(winbind_messaging_context(), NULL,
1183 MSG_WINBIND_DUMP_DOMAIN_LIST,
1184 winbind_msg_dump_domain_list);
1186 /* Register handler for MSG_DEBUG. */
1187 messaging_register(winbind_messaging_context(), NULL,
1191 netsamlogon_cache_init(); /* Non-critical */
1193 /* clear the cached list of trusted domains */
1197 if (!init_domain_list()) {
1198 DEBUG(0,("unable to initialize domain list\n"));
1203 init_locator_child();
1205 smb_nscd_flush_user_cache();
1206 smb_nscd_flush_group_cache();
1208 /* setup listen sockets */
1210 if (!winbindd_setup_listeners()) {
1211 DEBUG(0,("winbindd_setup_listeners() failed\n"));
1215 te = tevent_add_timer(winbind_event_context(), NULL, timeval_zero(),
1216 rescan_trusted_domains, NULL);
1218 DEBUG(0, ("Could not trigger rescan_trusted_domains()\n"));
1223 /* Loop waiting for requests */
1225 frame = talloc_stackframe();
1227 if (tevent_loop_once(winbind_event_context()) == -1) {
1228 DEBUG(1, ("tevent_loop_once() failed: %s\n",