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();
168 TALLOC_CTX *mem_ctx = talloc_init("end_description");
169 char *description = talloc_describe_all(mem_ctx);
171 DEBUG(3, ("tallocs left:\n%s\n", description));
172 talloc_destroy(mem_ctx);
179 static void winbindd_sig_term_handler(struct tevent_context *ev,
180 struct tevent_signal *se,
186 bool *is_parent = talloc_get_type_abort(private_data, bool);
188 DEBUG(0,("Got sig[%d] terminate (is_parent=%d)\n",
189 signum, (int)*is_parent));
190 terminate(*is_parent);
193 bool winbindd_setup_sig_term_handler(bool parent)
195 struct tevent_signal *se;
198 is_parent = talloc(winbind_event_context(), bool);
205 se = tevent_add_signal(winbind_event_context(),
208 winbindd_sig_term_handler,
211 DEBUG(0,("failed to setup SIGTERM handler"));
212 talloc_free(is_parent);
216 se = tevent_add_signal(winbind_event_context(),
219 winbindd_sig_term_handler,
222 DEBUG(0,("failed to setup SIGINT handler"));
223 talloc_free(is_parent);
227 se = tevent_add_signal(winbind_event_context(),
230 winbindd_sig_term_handler,
233 DEBUG(0,("failed to setup SIGINT handler"));
234 talloc_free(is_parent);
241 static void winbindd_sig_hup_handler(struct tevent_context *ev,
242 struct tevent_signal *se,
248 const char *file = (const char *)private_data;
250 DEBUG(1,("Reloading services after SIGHUP\n"));
252 reload_services_file(file);
255 bool winbindd_setup_sig_hup_handler(const char *lfile)
257 struct tevent_signal *se;
261 file = talloc_strdup(winbind_event_context(),
268 se = tevent_add_signal(winbind_event_context(),
269 winbind_event_context(),
271 winbindd_sig_hup_handler,
280 static void winbindd_sig_chld_handler(struct tevent_context *ev,
281 struct tevent_signal *se,
289 while ((pid = sys_waitpid(-1, NULL, WNOHANG)) > 0) {
290 winbind_child_died(pid);
294 static bool winbindd_setup_sig_chld_handler(void)
296 struct tevent_signal *se;
298 se = tevent_add_signal(winbind_event_context(),
299 winbind_event_context(),
301 winbindd_sig_chld_handler,
310 static void winbindd_sig_usr2_handler(struct tevent_context *ev,
311 struct tevent_signal *se,
317 print_winbindd_status();
320 static bool winbindd_setup_sig_usr2_handler(void)
322 struct tevent_signal *se;
324 se = tevent_add_signal(winbind_event_context(),
325 winbind_event_context(),
327 winbindd_sig_usr2_handler,
336 /* React on 'smbcontrol winbindd reload-config' in the same way as on SIGHUP*/
337 static void msg_reload_services(struct messaging_context *msg,
340 struct server_id server_id,
343 /* Flush various caches */
345 reload_services_file((const char *) private_data);
348 /* React on 'smbcontrol winbindd shutdown' in the same way as on SIGTERM*/
349 static void msg_shutdown(struct messaging_context *msg,
352 struct server_id server_id,
355 /* only the parent waits for this message */
356 DEBUG(0,("Got shutdown message\n"));
361 static void winbind_msg_validate_cache(struct messaging_context *msg_ctx,
364 struct server_id server_id,
369 struct sigaction act;
370 struct sigaction oldact;
372 DEBUG(10, ("winbindd_msg_validate_cache: got validate-cache "
376 * call the validation code from a child:
377 * so we don't block the main winbindd and the validation
378 * code can safely use fork/waitpid...
381 child_pid = sys_fork();
383 if (child_pid == -1) {
384 DEBUG(1, ("winbind_msg_validate_cache: Could not fork: %s\n",
389 if (child_pid != 0) {
391 DEBUG(5, ("winbind_msg_validate_cache: child created with "
392 "pid %d.\n", (int)child_pid));
398 /* install default SIGCHLD handler: validation code uses fork/waitpid */
400 act.sa_handler = SIG_DFL;
402 /* We *want* SIGALRM to interrupt a system call. */
403 act.sa_flags = SA_RESTART;
405 sigemptyset(&act.sa_mask);
406 sigaddset(&act.sa_mask,SIGCHLD);
407 sigaction(SIGCHLD,&act,&oldact);
409 ret = (uint8)winbindd_validate_cache_nobackup();
410 DEBUG(10, ("winbindd_msg_validata_cache: got return value %d\n", ret));
411 messaging_send_buf(msg_ctx, server_id, MSG_WINBIND_VALIDATE_CACHE, &ret,
416 static struct winbindd_dispatch_table {
417 enum winbindd_cmd cmd;
418 void (*fn)(struct winbindd_cli_state *state);
419 const char *winbindd_cmd_name;
420 } dispatch_table[] = {
424 { WINBINDD_GETPWNAM, winbindd_getpwnam, "GETPWNAM" },
425 { WINBINDD_GETPWUID, winbindd_getpwuid, "GETPWUID" },
426 { WINBINDD_GETPWSID, winbindd_getpwsid, "GETPWSID" },
428 { WINBINDD_SETPWENT, winbindd_setpwent, "SETPWENT" },
429 { WINBINDD_ENDPWENT, winbindd_endpwent, "ENDPWENT" },
430 { WINBINDD_GETPWENT, winbindd_getpwent, "GETPWENT" },
432 { WINBINDD_GETGROUPS, winbindd_getgroups, "GETGROUPS" },
433 { WINBINDD_GETUSERSIDS, winbindd_getusersids, "GETUSERSIDS" },
434 { WINBINDD_GETUSERDOMGROUPS, winbindd_getuserdomgroups,
435 "GETUSERDOMGROUPS" },
436 { WINBINDD_GETSIDALIASES, winbindd_getsidaliases,
437 "LOOKUPUSERALIASES" },
439 /* Group functions */
441 { WINBINDD_GETGRNAM, winbindd_getgrnam, "GETGRNAM" },
442 { WINBINDD_GETGRGID, winbindd_getgrgid, "GETGRGID" },
443 { WINBINDD_SETGRENT, winbindd_setgrent, "SETGRENT" },
444 { WINBINDD_ENDGRENT, winbindd_endgrent, "ENDGRENT" },
445 { WINBINDD_GETGRENT, winbindd_getgrent, "GETGRENT" },
446 { WINBINDD_GETGRLST, winbindd_getgrent, "GETGRLST" },
448 /* PAM auth functions */
450 { WINBINDD_PAM_AUTH, winbindd_pam_auth, "PAM_AUTH" },
451 { WINBINDD_PAM_AUTH_CRAP, winbindd_pam_auth_crap, "AUTH_CRAP" },
452 { WINBINDD_PAM_CHAUTHTOK, winbindd_pam_chauthtok, "CHAUTHTOK" },
453 { WINBINDD_PAM_LOGOFF, winbindd_pam_logoff, "PAM_LOGOFF" },
454 { WINBINDD_PAM_CHNG_PSWD_AUTH_CRAP, winbindd_pam_chng_pswd_auth_crap, "CHNG_PSWD_AUTH_CRAP" },
456 /* Enumeration functions */
458 { WINBINDD_LIST_USERS, winbindd_list_users, "LIST_USERS" },
459 { WINBINDD_LIST_GROUPS, winbindd_list_groups, "LIST_GROUPS" },
460 { WINBINDD_LIST_TRUSTDOM, winbindd_list_trusted_domains,
462 { WINBINDD_SHOW_SEQUENCE, winbindd_show_sequence, "SHOW_SEQUENCE" },
464 /* SID related functions */
466 { WINBINDD_LOOKUPSID, winbindd_lookupsid, "LOOKUPSID" },
467 { WINBINDD_LOOKUPNAME, winbindd_lookupname, "LOOKUPNAME" },
468 { WINBINDD_LOOKUPRIDS, winbindd_lookuprids, "LOOKUPRIDS" },
470 /* Lookup related functions */
472 { WINBINDD_SID_TO_UID, winbindd_sid_to_uid, "SID_TO_UID" },
473 { WINBINDD_SID_TO_GID, winbindd_sid_to_gid, "SID_TO_GID" },
474 { WINBINDD_UID_TO_SID, winbindd_uid_to_sid, "UID_TO_SID" },
475 { WINBINDD_GID_TO_SID, winbindd_gid_to_sid, "GID_TO_SID" },
476 { WINBINDD_ALLOCATE_UID, winbindd_allocate_uid, "ALLOCATE_UID" },
477 { WINBINDD_ALLOCATE_GID, winbindd_allocate_gid, "ALLOCATE_GID" },
478 { WINBINDD_SET_MAPPING, winbindd_set_mapping, "SET_MAPPING" },
479 { WINBINDD_REMOVE_MAPPING, winbindd_remove_mapping, "REMOVE_MAPPING" },
480 { WINBINDD_SET_HWM, winbindd_set_hwm, "SET_HWMS" },
484 { WINBINDD_CHECK_MACHACC, winbindd_check_machine_acct, "CHECK_MACHACC" },
485 { WINBINDD_PING, winbindd_ping, "PING" },
486 { WINBINDD_INFO, winbindd_info, "INFO" },
487 { WINBINDD_INTERFACE_VERSION, winbindd_interface_version,
488 "INTERFACE_VERSION" },
489 { WINBINDD_DOMAIN_NAME, winbindd_domain_name, "DOMAIN_NAME" },
490 { WINBINDD_DOMAIN_INFO, winbindd_domain_info, "DOMAIN_INFO" },
491 { WINBINDD_NETBIOS_NAME, winbindd_netbios_name, "NETBIOS_NAME" },
492 { WINBINDD_PRIV_PIPE_DIR, winbindd_priv_pipe_dir,
493 "WINBINDD_PRIV_PIPE_DIR" },
494 { WINBINDD_GETDCNAME, winbindd_getdcname, "GETDCNAME" },
495 { WINBINDD_DSGETDCNAME, winbindd_dsgetdcname, "DSGETDCNAME" },
497 /* Credential cache access */
498 { WINBINDD_CCACHE_NTLMAUTH, winbindd_ccache_ntlm_auth, "NTLMAUTH" },
502 { WINBINDD_WINS_BYNAME, winbindd_wins_byname, "WINS_BYNAME" },
503 { WINBINDD_WINS_BYIP, winbindd_wins_byip, "WINS_BYIP" },
507 { WINBINDD_NUM_CMDS, NULL, "NONE" }
510 struct winbindd_async_dispatch_table {
511 enum winbindd_cmd cmd;
512 const char *cmd_name;
513 struct tevent_req *(*send_req)(TALLOC_CTX *mem_ctx,
514 struct tevent_context *ev,
515 struct winbindd_request *request);
516 NTSTATUS (*recv_req)(struct tevent_req *req, TALLOC_CTX *mem_ctx,
517 struct winbindd_response **presp);
520 static struct winbindd_async_dispatch_table async_nonpriv_table[] = {
521 { WINBINDD_PING, "PING",
522 wb_ping_send, wb_ping_recv },
524 { 0, NULL, NULL, NULL }
527 static void wb_request_done(struct tevent_req *req);
529 static void process_request(struct winbindd_cli_state *state)
531 struct winbindd_dispatch_table *table = dispatch_table;
532 struct winbindd_async_dispatch_table *atable;
534 ZERO_STRUCT(state->response);
536 state->response.result = WINBINDD_PENDING;
537 state->response.length = sizeof(struct winbindd_response);
539 state->mem_ctx = talloc_init("winbind request");
540 if (state->mem_ctx == NULL)
543 /* Remember who asked us. */
544 state->pid = state->request->pid;
546 /* Process command */
548 for (atable = async_nonpriv_table; atable->send_req; atable += 1) {
549 if (state->request->cmd == atable->cmd) {
554 if (atable->send_req != NULL) {
555 struct tevent_req *req;
557 DEBUG(10, ("process_request: Handling async request %s\n",
560 req = atable->send_req(state->mem_ctx, winbind_event_context(),
563 DEBUG(0, ("process_request: atable->send failed for "
564 "%s\n", atable->cmd_name));
565 request_error(state);
568 tevent_req_set_callback(req, wb_request_done, state);
569 state->recv_fn = atable->recv_req;
573 for (table = dispatch_table; table->fn; table++) {
574 if (state->request->cmd == table->cmd) {
575 DEBUG(10,("process_request: request fn %s\n",
576 table->winbindd_cmd_name ));
583 DEBUG(10,("process_request: unknown request fn number %d\n",
584 (int)state->request->cmd ));
585 request_error(state);
589 static void wb_request_done(struct tevent_req *req)
591 struct winbindd_cli_state *state = tevent_req_callback_data(
592 req, struct winbindd_cli_state);
594 struct winbindd_response *response;
596 status = state->recv_fn(req, state->mem_ctx, &response);
598 if (!NT_STATUS_IS_OK(status)) {
599 DEBUG(10, ("returning %s\n", nt_errstr(status)));
600 request_error(state);
602 state->response = *response;
603 state->response.result = WINBINDD_PENDING;
604 state->response.length = sizeof(struct winbindd_response);
609 * This is the main event loop of winbind requests. It goes through a
610 * state-machine of 3 read/write requests, 4 if you have extra data to send.
612 * An idle winbind client has a read request of 4 bytes outstanding,
613 * finalizing function is request_len_recv, checking the length. request_recv
614 * then processes the packet. The processing function then at some point has
615 * to call request_finished which schedules sending the response.
618 static void request_finished(struct winbindd_cli_state *state);
620 static void winbind_client_request_read(struct tevent_req *req);
621 static void winbind_client_response_written(struct tevent_req *req);
623 static void request_finished(struct winbindd_cli_state *state)
625 struct tevent_req *req;
627 TALLOC_FREE(state->request);
629 req = wb_resp_write_send(state, winbind_event_context(),
630 state->out_queue, state->sock,
633 remove_client(state);
636 tevent_req_set_callback(req, winbind_client_response_written, state);
639 static void winbind_client_response_written(struct tevent_req *req)
641 struct winbindd_cli_state *state = tevent_req_callback_data(
642 req, struct winbindd_cli_state);
646 ret = wb_resp_write_recv(req, &err);
649 DEBUG(2, ("Could not write response to client: %s\n",
651 remove_client(state);
655 TALLOC_FREE(state->mem_ctx);
657 req = wb_req_read_send(state, winbind_event_context(), state->sock,
658 WINBINDD_MAX_EXTRA_DATA);
660 remove_client(state);
663 tevent_req_set_callback(req, winbind_client_request_read, state);
666 void request_error(struct winbindd_cli_state *state)
668 SMB_ASSERT(state->response.result == WINBINDD_PENDING);
669 state->response.result = WINBINDD_ERROR;
670 request_finished(state);
673 void request_ok(struct winbindd_cli_state *state)
675 SMB_ASSERT(state->response.result == WINBINDD_PENDING);
676 state->response.result = WINBINDD_OK;
677 request_finished(state);
680 /* Process a new connection by adding it to the client connection list */
682 static void new_connection(int listen_sock, bool privileged)
684 struct sockaddr_un sunaddr;
685 struct winbindd_cli_state *state;
686 struct tevent_req *req;
690 /* Accept connection */
692 len = sizeof(sunaddr);
695 sock = accept(listen_sock, (struct sockaddr *)(void *)&sunaddr,
697 } while (sock == -1 && errno == EINTR);
702 DEBUG(6,("accepted socket %d\n", sock));
704 /* Create new connection structure */
706 if ((state = TALLOC_ZERO_P(NULL, struct winbindd_cli_state)) == NULL) {
713 state->out_queue = tevent_queue_create(state, "winbind client reply");
714 if (state->out_queue == NULL) {
720 state->last_access = time(NULL);
722 state->privileged = privileged;
724 req = wb_req_read_send(state, winbind_event_context(), state->sock,
725 WINBINDD_MAX_EXTRA_DATA);
731 tevent_req_set_callback(req, winbind_client_request_read, state);
733 /* Add to connection list */
735 winbindd_add_client(state);
738 static void winbind_client_request_read(struct tevent_req *req)
740 struct winbindd_cli_state *state = tevent_req_callback_data(
741 req, struct winbindd_cli_state);
745 ret = wb_req_read_recv(req, state, &state->request, &err);
747 DEBUG(2, ("Could not read client request: %s\n",
749 remove_client(state);
752 process_request(state);
755 /* Remove a client connection from client connection list */
757 static void remove_client(struct winbindd_cli_state *state)
762 /* It's a dead client - hold a funeral */
768 /* tell client, we are closing ... */
769 nwritten = write(state->sock, &c, sizeof(c));
770 if (nwritten == -1) {
772 * ignore EPIPE error here, because the other end might
773 * have already closed the socket.
775 if (errno != EPIPE) {
776 DEBUG(2, ("final write to client failed: %s\n",
785 /* Free any getent state */
787 free_getent_state(state->getpwent_state);
788 free_getent_state(state->getgrent_state);
790 TALLOC_FREE(state->mem_ctx);
792 /* Remove from list and free */
794 winbindd_remove_client(state);
798 /* Shutdown client connection which has been idle for the longest time */
800 static bool remove_idle_client(void)
802 struct winbindd_cli_state *state, *remove_state = NULL;
803 time_t last_access = 0;
806 for (state = winbindd_client_list(); state; state = state->next) {
807 if (state->response.result != WINBINDD_PENDING &&
808 !state->getpwent_state && !state->getgrent_state) {
810 if (!last_access || state->last_access < last_access) {
811 last_access = state->last_access;
812 remove_state = state;
818 DEBUG(5,("Found %d idle client connections, shutting down sock %d, pid %u\n",
819 nidle, remove_state->sock, (unsigned int)remove_state->pid));
820 remove_client(remove_state);
827 struct winbindd_listen_state {
832 static void winbindd_listen_fde_handler(struct tevent_context *ev,
833 struct tevent_fd *fde,
837 struct winbindd_listen_state *s = talloc_get_type_abort(private_data,
838 struct winbindd_listen_state);
840 while (winbindd_num_clients() >
841 WINBINDD_MAX_SIMULTANEOUS_CLIENTS - 1) {
842 DEBUG(5,("winbindd: Exceeding %d client "
843 "connections, removing idle "
845 WINBINDD_MAX_SIMULTANEOUS_CLIENTS));
846 if (!remove_idle_client()) {
847 DEBUG(0,("winbindd: Exceeding %d "
848 "client connections, no idle "
849 "connection found\n",
850 WINBINDD_MAX_SIMULTANEOUS_CLIENTS));
854 new_connection(s->fd, s->privileged);
857 static bool winbindd_setup_listeners(void)
859 struct winbindd_listen_state *pub_state = NULL;
860 struct winbindd_listen_state *priv_state = NULL;
861 struct tevent_fd *fde;
863 pub_state = talloc(winbind_event_context(),
864 struct winbindd_listen_state);
869 pub_state->privileged = false;
870 pub_state->fd = open_winbindd_socket();
871 if (pub_state->fd == -1) {
875 fde = tevent_add_fd(winbind_event_context(), pub_state, pub_state->fd,
876 TEVENT_FD_READ, winbindd_listen_fde_handler,
879 close(pub_state->fd);
882 tevent_fd_set_auto_close(fde);
884 priv_state = talloc(winbind_event_context(),
885 struct winbindd_listen_state);
890 priv_state->privileged = true;
891 priv_state->fd = open_winbindd_priv_socket();
892 if (priv_state->fd == -1) {
896 fde = tevent_add_fd(winbind_event_context(), priv_state,
897 priv_state->fd, TEVENT_FD_READ,
898 winbindd_listen_fde_handler, priv_state);
900 close(priv_state->fd);
903 tevent_fd_set_auto_close(fde);
907 TALLOC_FREE(pub_state);
908 TALLOC_FREE(priv_state);
912 /* Process incoming clients on listen_sock. We use a tricky non-blocking,
913 non-forking, non-threaded model which allows us to handle many
914 simultaneous connections while remaining impervious to many denial of
917 static void process_loop(void)
920 int maxfd = 0, selret;
921 struct timeval timeout, ev_timeout;
923 run_events(winbind_event_context(), 0, NULL, NULL);
925 /* Initialise fd lists for select() */
930 timeout.tv_sec = WINBINDD_ESTABLISH_LOOP;
933 /* Check for any event timeouts. */
938 event_add_to_select_args(winbind_event_context(), &now,
939 &r_fds, &w_fds, &ev_timeout, &maxfd);
941 if (get_timed_events_timeout(winbind_event_context(), &ev_timeout)) {
942 timeout = timeval_min(&timeout, &ev_timeout);
947 selret = sys_select(maxfd + 1, &r_fds, &w_fds, NULL, &timeout);
954 if (errno == EINTR) {
958 /* Select error, something is badly wrong */
966 run_events(winbind_event_context(), selret, &r_fds, &w_fds);
972 run_events(winbind_event_context(), selret, &r_fds, &w_fds);
975 winbindd_check_cache_size(time(NULL));
979 bool winbindd_use_idmap_cache(void)
984 bool winbindd_use_cache(void)
991 int main(int argc, char **argv, char **envp)
993 static bool is_daemon = False;
994 static bool Fork = True;
995 static bool log_stdout = False;
996 static bool no_process_group = False;
1000 OPT_NO_PROCESS_GROUP,
1003 struct poptOption long_options[] = {
1005 { "stdout", 'S', POPT_ARG_NONE, NULL, OPT_LOG_STDOUT, "Log to stdout" },
1006 { "foreground", 'F', POPT_ARG_NONE, NULL, OPT_FORK, "Daemon in foreground mode" },
1007 { "no-process-group", 0, POPT_ARG_NONE, NULL, OPT_NO_PROCESS_GROUP, "Don't create a new process group" },
1008 { "daemon", 'D', POPT_ARG_NONE, NULL, OPT_DAEMON, "Become a daemon (default)" },
1009 { "interactive", 'i', POPT_ARG_NONE, NULL, 'i', "Interactive mode" },
1010 { "no-caching", 'n', POPT_ARG_NONE, NULL, 'n', "Disable caching" },
1016 TALLOC_CTX *frame = talloc_stackframe();
1017 struct tevent_timer *te;
1019 /* glibc (?) likes to print "User defined signal 1" and exit if a
1020 SIGUSR[12] is received before a handler is installed */
1022 CatchSignal(SIGUSR1, SIG_IGN);
1023 CatchSignal(SIGUSR2, SIG_IGN);
1025 fault_setup((void (*)(void *))fault_quit );
1026 dump_core_setup("winbindd");
1030 /* Initialise for running in non-root mode */
1034 set_remote_machine_name("winbindd", False);
1036 /* Set environment variable so we don't recursively call ourselves.
1037 This may also be useful interactively. */
1039 if ( !winbind_off() ) {
1040 DEBUG(0,("Failed to disable recusive winbindd calls. Exiting.\n"));
1044 /* Initialise samba/rpc client stuff */
1046 pc = poptGetContext("winbindd", argc, (const char **)argv, long_options, 0);
1048 while ((opt = poptGetNextOpt(pc)) != -1) {
1050 /* Don't become a daemon */
1062 case OPT_NO_PROCESS_GROUP:
1063 no_process_group = true;
1065 case OPT_LOG_STDOUT:
1072 d_fprintf(stderr, "\nInvalid option %s: %s\n\n",
1073 poptBadOption(pc, 0), poptStrerror(opt));
1074 poptPrintUsage(pc, stderr, 0);
1079 if (is_daemon && interactive) {
1080 d_fprintf(stderr,"\nERROR: "
1081 "Option -i|--interactive is not allowed together with -D|--daemon\n\n");
1082 poptPrintUsage(pc, stderr, 0);
1086 if (log_stdout && Fork) {
1087 d_fprintf(stderr, "\nERROR: "
1088 "Can't log to stdout (-S) unless daemon is in foreground +(-F) or interactive (-i)\n\n");
1089 poptPrintUsage(pc, stderr, 0);
1093 poptFreeContext(pc);
1095 if (!override_logfile) {
1097 if (asprintf(&lfile,"%s/log.winbindd",
1098 get_dyn_LOGFILEBASE()) > 0) {
1099 lp_set_logfile(lfile);
1103 setup_logging("winbindd", log_stdout);
1106 DEBUG(0,("winbindd version %s started.\n", samba_version_string()));
1107 DEBUGADD(0,("%s\n", COPYRIGHT_STARTUP_MESSAGE));
1109 if (!lp_load_initial_only(get_dyn_CONFIGFILE())) {
1110 DEBUG(0, ("error opening config file\n"));
1114 /* Initialise messaging system */
1116 if (winbind_messaging_context() == NULL) {
1120 if (!reload_services_file(NULL)) {
1121 DEBUG(0, ("error opening config file\n"));
1125 if (!directory_exist(lp_lockdir())) {
1126 mkdir(lp_lockdir(), 0755);
1136 if (!secrets_init()) {
1138 DEBUG(0,("Could not initialize domain trust account secrets. Giving up\n"));
1142 /* Enable netbios namecache */
1146 /* Unblock all signals we are interested in as they may have been
1147 blocked by the parent process. */
1149 BlockSignals(False, SIGINT);
1150 BlockSignals(False, SIGQUIT);
1151 BlockSignals(False, SIGTERM);
1152 BlockSignals(False, SIGUSR1);
1153 BlockSignals(False, SIGUSR2);
1154 BlockSignals(False, SIGHUP);
1155 BlockSignals(False, SIGCHLD);
1158 become_daemon(Fork, no_process_group);
1160 pidfile_create("winbindd");
1164 * If we're interactive we want to set our own process group for
1165 * signal management.
1167 if (interactive && !no_process_group)
1168 setpgid( (pid_t)0, (pid_t)0);
1173 /* Don't use winbindd_reinit_after_fork here as
1174 * we're just starting up and haven't created any
1175 * winbindd-specific resources we must free yet. JRA.
1178 if (!NT_STATUS_IS_OK(reinit_after_fork(winbind_messaging_context(),
1179 winbind_event_context(),
1181 DEBUG(0,("reinit_after_fork() failed\n"));
1185 /* Setup signal handlers */
1187 if (!winbindd_setup_sig_term_handler(true))
1189 if (!winbindd_setup_sig_hup_handler(NULL))
1191 if (!winbindd_setup_sig_chld_handler())
1193 if (!winbindd_setup_sig_usr2_handler())
1196 CatchSignal(SIGPIPE, SIG_IGN); /* Ignore sigpipe */
1199 * Ensure all cache and idmap caches are consistent
1200 * and initialized before we startup.
1202 if (!winbindd_cache_validate_and_initialize()) {
1206 /* get broadcast messages */
1207 claim_connection(NULL,"",FLAG_MSG_GENERAL|FLAG_MSG_DBWRAP);
1209 /* React on 'smbcontrol winbindd reload-config' in the same way
1210 as to SIGHUP signal */
1211 messaging_register(winbind_messaging_context(), NULL,
1212 MSG_SMB_CONF_UPDATED, msg_reload_services);
1213 messaging_register(winbind_messaging_context(), NULL,
1214 MSG_SHUTDOWN, msg_shutdown);
1216 /* Handle online/offline messages. */
1217 messaging_register(winbind_messaging_context(), NULL,
1218 MSG_WINBIND_OFFLINE, winbind_msg_offline);
1219 messaging_register(winbind_messaging_context(), NULL,
1220 MSG_WINBIND_ONLINE, winbind_msg_online);
1221 messaging_register(winbind_messaging_context(), NULL,
1222 MSG_WINBIND_ONLINESTATUS, winbind_msg_onlinestatus);
1224 messaging_register(winbind_messaging_context(), NULL,
1225 MSG_DUMP_EVENT_LIST, winbind_msg_dump_event_list);
1227 messaging_register(winbind_messaging_context(), NULL,
1228 MSG_WINBIND_VALIDATE_CACHE,
1229 winbind_msg_validate_cache);
1231 messaging_register(winbind_messaging_context(), NULL,
1232 MSG_WINBIND_DUMP_DOMAIN_LIST,
1233 winbind_msg_dump_domain_list);
1235 /* Register handler for MSG_DEBUG. */
1236 messaging_register(winbind_messaging_context(), NULL,
1240 netsamlogon_cache_init(); /* Non-critical */
1242 /* clear the cached list of trusted domains */
1246 if (!init_domain_list()) {
1247 DEBUG(0,("unable to initialize domain list\n"));
1252 init_locator_child();
1254 smb_nscd_flush_user_cache();
1255 smb_nscd_flush_group_cache();
1257 /* setup listen sockets */
1259 if (!winbindd_setup_listeners()) {
1260 DEBUG(0,("winbindd_setup_listeners() failed\n"));
1264 te = tevent_add_timer(winbind_event_context(), NULL, timeval_zero(),
1265 rescan_trusted_domains, NULL);
1267 DEBUG(0, ("Could not trigger rescan_trusted_domains()\n"));
1272 /* Loop waiting for requests */
1274 frame = talloc_stackframe();