2 Unix SMB/CIFS implementation.
3 Main SMB server routines
4 Copyright (C) Andrew Tridgell 1992-1998
5 Copyright (C) Martin Pool 2002
6 Copyright (C) Jelmer Vernooij 2002-2003
7 Copyright (C) Volker Lendecke 1993-2007
8 Copyright (C) Jeremy Allison 1993-2007
10 This program is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation; either version 3 of the License, or
13 (at your option) any later version.
15 This program is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
20 You should have received a copy of the GNU General Public License
21 along with this program. If not, see <http://www.gnu.org/licenses/>.
25 #include "system/filesys.h"
26 #include "popt_common.h"
27 #include "smbd/smbd.h"
28 #include "smbd/globals.h"
29 #include "registry/reg_init_full.h"
30 #include "libcli/auth/schannel.h"
33 #include "ctdbd_conn.h"
34 #include "printing/queue_process.h"
35 #include "rpc_server/rpc_service_setup.h"
36 #include "rpc_server/rpc_config.h"
41 #include "smbprofile.h"
42 #include "lib/id_cache.h"
44 extern void start_epmd(struct tevent_context *ev_ctx,
45 struct messaging_context *msg_ctx);
47 extern void start_lsasd(struct event_context *ev_ctx,
48 struct messaging_context *msg_ctx);
51 extern int dcelogin_atmost_once;
54 /*******************************************************************
55 What to do when smb.conf is updated.
56 ********************************************************************/
58 static void smb_conf_updated(struct messaging_context *msg,
61 struct server_id server_id,
64 struct tevent_context *ev_ctx =
65 talloc_get_type_abort(private_data, struct tevent_context);
66 struct smbd_server_connection *sconn = msg_ctx_to_sconn(msg);
68 DEBUG(10,("smb_conf_updated: Got message saying smb.conf was "
69 "updated. Reloading.\n"));
70 change_to_root_user();
71 reload_services(msg, sconn->sock, False);
73 printing_subsystem_update(ev_ctx, msg, false);
77 /*******************************************************************
78 What to do when printcap is updated.
79 ********************************************************************/
81 static void smb_pcap_updated(struct messaging_context *msg,
84 struct server_id server_id,
87 struct tevent_context *ev_ctx =
88 talloc_get_type_abort(private_data, struct tevent_context);
90 DEBUG(10,("Got message saying pcap was updated. Reloading.\n"));
91 change_to_root_user();
92 delete_and_reload_printers(ev_ctx, msg);
95 /*******************************************************************
96 Delete a statcache entry.
97 ********************************************************************/
99 static void smb_stat_cache_delete(struct messaging_context *msg,
102 struct server_id server_id,
105 const char *name = (const char *)data->data;
106 DEBUG(10,("smb_stat_cache_delete: delete name %s\n", name));
107 stat_cache_delete(name);
110 /****************************************************************************
111 Send a SIGTERM to our process group.
112 *****************************************************************************/
114 static void killkids(void)
116 if(am_parent) kill(0,SIGTERM);
119 /****************************************************************************
120 Process a sam sync message - not sure whether to do this here or
122 ****************************************************************************/
124 static void msg_sam_sync(struct messaging_context *msg,
127 struct server_id server_id,
130 DEBUG(10, ("** sam sync message received, ignoring\n"));
133 static void msg_exit_server(struct messaging_context *msg,
136 struct server_id server_id,
139 DEBUG(3, ("got a SHUTDOWN message\n"));
140 exit_server_cleanly(NULL);
144 static void msg_inject_fault(struct messaging_context *msg,
147 struct server_id src,
152 if (data->length != sizeof(sig)) {
153 DEBUG(0, ("Process %s sent bogus signal injection request\n",
154 procid_str_static(&src)));
158 sig = *(int *)data->data;
160 exit_server("internal error injected");
165 DEBUG(0, ("Process %s requested injection of signal %d (%s)\n",
166 procid_str_static(&src), sig, strsignal(sig)));
168 DEBUG(0, ("Process %s requested injection of signal %d\n",
169 procid_str_static(&src), sig));
172 kill(sys_getpid(), sig);
174 #endif /* DEVELOPER */
177 * Parent smbd process sets its own debug level first and then
178 * sends a message to all the smbd children to adjust their debug
179 * level to that of the parent.
182 static void smbd_msg_debug(struct messaging_context *msg_ctx,
185 struct server_id server_id,
188 struct child_pid *child;
190 debug_message(msg_ctx, private_data, MSG_DEBUG, server_id, data);
192 for (child = children; child != NULL; child = child->next) {
193 messaging_send_buf(msg_ctx, pid_to_procid(child->pid),
196 strlen((char *) data->data) + 1);
200 static void add_child_pid(pid_t pid)
202 struct child_pid *child;
204 child = SMB_MALLOC_P(struct child_pid);
206 DEBUG(0, ("Could not add child struct -- malloc failed\n"));
210 DLIST_ADD(children, child);
215 at most every smbd:cleanuptime seconds (default 20), we scan the BRL
216 and locking database for entries to cleanup. As a side effect this
217 also cleans up dead entries in the connections database (due to the
218 traversal in message_send_all()
220 Using a timer for this prevents a flood of traversals when a large
221 number of clients disconnect at the same time (perhaps due to a
225 static void cleanup_timeout_fn(struct event_context *event_ctx,
226 struct timed_event *te,
230 struct timed_event **cleanup_te = (struct timed_event **)private_data;
232 DEBUG(1,("Cleaning up brl and lock database after unclean shutdown\n"));
233 message_send_all(smbd_messaging_context(), MSG_SMB_UNLOCK, NULL, 0, NULL);
234 messaging_send_buf(smbd_messaging_context(), procid_self(),
235 MSG_SMB_BRL_VALIDATE, NULL, 0);
236 /* mark the cleanup as having been done */
237 (*cleanup_te) = NULL;
240 static void remove_child_pid(struct tevent_context *ev_ctx,
242 bool unclean_shutdown)
244 struct child_pid *child;
245 static struct timed_event *cleanup_te;
246 struct server_id child_id;
248 if (unclean_shutdown) {
249 /* a child terminated uncleanly so tickle all
250 processes to see if they can grab any of the
253 DEBUG(3,(__location__ " Unclean shutdown of pid %u\n",
256 /* call the cleanup timer, but not too often */
257 int cleanup_time = lp_parm_int(-1, "smbd", "cleanuptime", 20);
258 cleanup_te = event_add_timed(ev_ctx, NULL,
259 timeval_current_ofs(cleanup_time, 0),
262 DEBUG(1,("Scheduled cleanup of brl and lock database after unclean shutdown\n"));
266 child_id = procid_self(); /* Just initialize pid and potentially vnn */
269 if (!serverid_deregister(child_id)) {
270 DEBUG(1, ("Could not remove pid %d from serverid.tdb\n",
274 for (child = children; child != NULL; child = child->next) {
275 if (child->pid == pid) {
276 struct child_pid *tmp = child;
277 DLIST_REMOVE(children, child);
284 /* not all forked child processes are added to the children list */
285 DEBUG(1, ("Could not find child %d -- ignoring\n", (int)pid));
288 /****************************************************************************
289 Have we reached the process limit ?
290 ****************************************************************************/
292 static bool allowable_number_of_smbd_processes(void)
294 int max_processes = lp_max_smbd_processes();
299 return num_children < max_processes;
302 static void smbd_sig_chld_handler(struct tevent_context *ev,
303 struct tevent_signal *se,
312 while ((pid = sys_waitpid(-1, &status, WNOHANG)) > 0) {
313 bool unclean_shutdown = False;
315 /* If the child terminated normally, assume
316 it was an unclean shutdown unless the
319 if (WIFEXITED(status)) {
320 unclean_shutdown = WEXITSTATUS(status);
322 /* If the child terminated due to a signal
323 we always assume it was unclean.
325 if (WIFSIGNALED(status)) {
326 unclean_shutdown = True;
328 remove_child_pid(ev, pid, unclean_shutdown);
332 static void smbd_setup_sig_chld_handler(struct tevent_context *ev_ctx)
334 struct tevent_signal *se;
336 se = tevent_add_signal(ev_ctx,
337 ev_ctx, /* mem_ctx */
339 smbd_sig_chld_handler,
342 exit_server("failed to setup SIGCHLD handler");
346 struct smbd_open_socket;
348 struct smbd_parent_context {
351 /* the list of listening sockets */
352 struct smbd_open_socket *sockets;
355 struct smbd_open_socket {
356 struct smbd_open_socket *prev, *next;
357 struct smbd_parent_context *parent;
359 struct tevent_fd *fde;
360 struct messaging_context *msg_ctx;
363 static void smbd_open_socket_close_fn(struct tevent_context *ev,
364 struct tevent_fd *fde,
368 /* this might be the socket_wrapper swrap_close() */
372 static void smbd_accept_connection(struct tevent_context *ev,
373 struct tevent_fd *fde,
377 struct smbd_open_socket *s = talloc_get_type_abort(private_data,
378 struct smbd_open_socket);
379 struct messaging_context *msg_ctx = s->msg_ctx;
380 struct smbd_server_connection *sconn = msg_ctx_to_sconn(msg_ctx);
381 struct sockaddr_storage addr;
382 socklen_t in_addrlen = sizeof(addr);
387 fd = accept(s->fd, (struct sockaddr *)(void *)&addr,&in_addrlen);
389 if (fd == -1 && errno == EINTR)
393 DEBUG(0,("open_sockets_smbd: accept: %s\n",
398 if (s->parent->interactive) {
399 smbd_process(ev, sconn);
400 exit_server_cleanly("end of interactive mode");
404 if (!allowable_number_of_smbd_processes()) {
411 * Generate a unique id in the parent process so that we use
412 * the global random state in the parent.
414 generate_random_buffer((uint8_t *)&unique_id, sizeof(unique_id));
418 NTSTATUS status = NT_STATUS_OK;
423 set_my_unique_id(unique_id);
425 /* Stop zombies, the parent explicitly handles
426 * them, counting worker smbds. */
429 /* close our standard file
431 if (!debug_get_output_is_stdout()) {
432 close_low_fds(False); /* Don't close stderr */
436 * Can't use TALLOC_FREE here. Nulling out the argument to it
437 * would overwrite memory we've just freed.
439 talloc_free(s->parent);
442 status = reinit_after_fork(msg_ctx,
446 if (!NT_STATUS_IS_OK(status)) {
447 if (NT_STATUS_EQUAL(status,
448 NT_STATUS_TOO_MANY_OPENED_FILES)) {
449 DEBUG(0,("child process cannot initialize "
450 "because too many files are open\n"));
453 if (lp_clustering() &&
454 NT_STATUS_EQUAL(status,
455 NT_STATUS_INTERNAL_DB_ERROR)) {
456 DEBUG(1,("child process cannot initialize "
457 "because connection to CTDB "
462 DEBUG(0,("reinit_after_fork() failed\n"));
463 smb_panic("reinit_after_fork() failed");
466 smbd_setup_sig_term_handler();
467 smbd_setup_sig_hup_handler(ev,
470 if (!serverid_register(procid_self(),
471 FLAG_MSG_GENERAL|FLAG_MSG_SMBD
473 |FLAG_MSG_PRINT_GENERAL)) {
474 exit_server_cleanly("Could not register myself in "
478 smbd_process(ev, sconn);
480 exit_server_cleanly("end of child");
485 DEBUG(0,("smbd_accept_connection: sys_fork() failed: %s\n",
489 /* The parent doesn't need this socket */
492 /* Sun May 6 18:56:14 2001 ackley@cs.unm.edu:
493 Clear the closed fd info out of server_fd --
494 and more importantly, out of client_fd in
495 util_sock.c, to avoid a possible
496 getpeername failure if we reopen the logs
497 and use %I in the filename.
505 /* Force parent to check log size after
506 * spawning child. Fix from
507 * klausr@ITAP.Physik.Uni-Stuttgart.De. The
508 * parent smbd will log to logserver.smb. It
509 * writes only two messages for each child
510 * started/finished. But each child writes,
511 * say, 50 messages also in logserver.smb,
512 * begining with the debug_count of the
513 * parent, before the child opens its own log
514 * file logserver.client. In a worst case
515 * scenario the size of logserver.smb would be
516 * checked after about 50*50=2500 messages
519 force_check_log_size();
522 static bool smbd_open_one_socket(struct smbd_parent_context *parent,
523 struct tevent_context *ev_ctx,
524 struct messaging_context *msg_ctx,
525 const struct sockaddr_storage *ifss,
528 struct smbd_open_socket *s;
530 s = talloc(parent, struct smbd_open_socket);
536 s->fd = open_socket_in(SOCK_STREAM,
538 parent->sockets == NULL ? 0 : 2,
542 DEBUG(0,("smbd_open_once_socket: open_socket_in: "
543 "%s\n", strerror(errno)));
546 * We ignore an error here, as we've done before
551 /* ready to listen */
552 set_socket_options(s->fd, "SO_KEEPALIVE");
553 set_socket_options(s->fd, lp_socket_options());
555 /* Set server socket to
556 * non-blocking for the accept. */
557 set_blocking(s->fd, False);
559 if (listen(s->fd, SMBD_LISTEN_BACKLOG) == -1) {
560 DEBUG(0,("open_sockets_smbd: listen: "
561 "%s\n", strerror(errno)));
567 s->msg_ctx = msg_ctx;
568 s->fde = tevent_add_fd(ev_ctx,
570 s->fd, TEVENT_FD_READ,
571 smbd_accept_connection,
574 DEBUG(0,("open_sockets_smbd: "
575 "tevent_add_fd: %s\n",
581 tevent_fd_set_close_fn(s->fde, smbd_open_socket_close_fn);
583 DLIST_ADD_END(parent->sockets, s, struct smbd_open_socket *);
588 /****************************************************************************
589 Open the socket communication.
590 ****************************************************************************/
592 static bool open_sockets_smbd(struct smbd_parent_context *parent,
593 struct tevent_context *ev_ctx,
594 struct messaging_context *msg_ctx,
595 const char *smb_ports)
597 int num_interfaces = iface_count();
600 unsigned dns_port = 0;
607 smbd_setup_sig_chld_handler(ev_ctx);
609 /* use a reasonable default set of ports - listing on 445 and 139 */
611 ports = lp_smb_ports();
612 if (!ports || !*ports) {
613 ports = talloc_strdup(talloc_tos(), SMB_PORTS);
615 ports = talloc_strdup(talloc_tos(), ports);
618 ports = talloc_strdup(talloc_tos(), smb_ports);
621 if (lp_interfaces() && lp_bind_interfaces_only()) {
622 /* We have been given an interfaces line, and been
623 told to only bind to those interfaces. Create a
624 socket per interface and bind to only these.
627 /* Now open a listen socket for each of the
629 for(i = 0; i < num_interfaces; i++) {
630 const struct sockaddr_storage *ifss =
631 iface_n_sockaddr_storage(i);
636 DEBUG(0,("open_sockets_smbd: "
637 "interface %d has NULL IP address !\n",
643 next_token_talloc(talloc_tos(),&ptr, &tok, " \t,");) {
644 unsigned port = atoi(tok);
645 if (port == 0 || port > 0xffff) {
649 /* Keep the first port for mDNS service
656 if (!smbd_open_one_socket(parent,
666 /* Just bind to 0.0.0.0 - accept connections
671 const char *sock_addr = lp_socket_address();
673 const char *sock_ptr;
675 if (strequal(sock_addr, "0.0.0.0") ||
676 strequal(sock_addr, "::")) {
678 sock_addr = "::,0.0.0.0";
680 sock_addr = "0.0.0.0";
684 for (sock_ptr=sock_addr;
685 next_token_talloc(talloc_tos(), &sock_ptr, &sock_tok, " \t,"); ) {
686 for (ptr=ports; next_token_talloc(talloc_tos(), &ptr, &tok, " \t,"); ) {
687 struct sockaddr_storage ss;
689 unsigned port = atoi(tok);
690 if (port == 0 || port > 0xffff) {
694 /* Keep the first port for mDNS service
701 /* open an incoming socket */
702 if (!interpret_string_addr(&ss, sock_tok,
703 AI_NUMERICHOST|AI_PASSIVE)) {
707 if (!smbd_open_one_socket(parent,
718 if (parent->sockets == NULL) {
719 DEBUG(0,("open_sockets_smbd: No "
720 "sockets available to bind to.\n"));
724 /* Setup the main smbd so that we can get messages. Note that
725 do this after starting listening. This is needed as when in
726 clustered mode, ctdb won't allow us to start doing database
727 operations until it has gone thru a full startup, which
728 includes checking to see that smbd is listening. */
730 if (!serverid_register(procid_self(),
731 FLAG_MSG_GENERAL|FLAG_MSG_SMBD
733 DEBUG(0, ("open_sockets_smbd: Failed to register "
734 "myself in serverid.tdb\n"));
738 /* Listen to messages */
740 messaging_register(msg_ctx, NULL, MSG_SMB_SAM_SYNC, msg_sam_sync);
741 messaging_register(msg_ctx, NULL, MSG_SHUTDOWN, msg_exit_server);
742 messaging_register(msg_ctx, NULL, MSG_SMB_FILE_RENAME,
743 msg_file_was_renamed);
744 messaging_register(msg_ctx, ev_ctx, MSG_SMB_CONF_UPDATED,
746 messaging_register(msg_ctx, NULL, MSG_SMB_STAT_CACHE_DELETE,
747 smb_stat_cache_delete);
748 messaging_register(msg_ctx, NULL, MSG_DEBUG, smbd_msg_debug);
749 messaging_register(msg_ctx, ev_ctx, MSG_PRINTER_PCAP,
751 brl_register_msgs(msg_ctx);
753 id_cache_register_msgs(msg_ctx);
754 id_cache_register_kill_msg(msg_ctx);
756 #ifdef CLUSTER_SUPPORT
757 if (lp_clustering()) {
758 ctdbd_register_reconfigure(messaging_ctdbd_connection());
763 messaging_register(msg_ctx, NULL, MSG_SMB_INJECT_FAULT,
767 if (lp_multicast_dns_register() && (dns_port != 0)) {
768 #ifdef WITH_DNSSD_SUPPORT
769 smbd_setup_mdns_registration(ev_ctx,
772 #ifdef WITH_AVAHI_SUPPORT
775 avahi_conn = avahi_start_register(ev_ctx,
778 if (avahi_conn == NULL) {
779 DEBUG(10, ("avahi_start_register failed\n"));
787 static void smbd_parent_loop(struct tevent_context *ev_ctx,
788 struct smbd_parent_context *parent)
790 /* now accept incoming connections - forking a new process
791 for each incoming connection */
792 DEBUG(2,("waiting for connections\n"));
795 TALLOC_CTX *frame = talloc_stackframe();
797 ret = tevent_loop_once(ev_ctx);
799 exit_server_cleanly("tevent_loop_once() error");
805 /* NOTREACHED return True; */
809 /****************************************************************************
810 Initialise connect, service and file structs.
811 ****************************************************************************/
813 static bool init_structs(void )
816 * Set the machine NETBIOS name if not already
817 * set from the config file.
829 /****************************************************************************
831 ****************************************************************************/
833 /* Declare prototype for build_options() to avoid having to run it through
834 mkproto.h. Mixing $(builddir) and $(srcdir) source files in the current
835 prototype generation system is too complicated. */
837 extern void build_options(bool screen);
839 int main(int argc,const char *argv[])
841 /* shall I run as a daemon */
842 bool is_daemon = false;
843 bool interactive = false;
845 bool no_process_group = false;
846 bool log_stdout = false;
848 char *profile_level = NULL;
851 bool print_build_options = False;
856 OPT_NO_PROCESS_GROUP,
859 struct poptOption long_options[] = {
861 {"daemon", 'D', POPT_ARG_NONE, NULL, OPT_DAEMON, "Become a daemon (default)" },
862 {"interactive", 'i', POPT_ARG_NONE, NULL, OPT_INTERACTIVE, "Run interactive (not a daemon)"},
863 {"foreground", 'F', POPT_ARG_NONE, NULL, OPT_FORK, "Run daemon in foreground (for daemontools, etc.)" },
864 {"no-process-group", '\0', POPT_ARG_NONE, NULL, OPT_NO_PROCESS_GROUP, "Don't create a new process group" },
865 {"log-stdout", 'S', POPT_ARG_NONE, NULL, OPT_LOG_STDOUT, "Log to stdout" },
866 {"build-options", 'b', POPT_ARG_NONE, NULL, 'b', "Print build options" },
867 {"port", 'p', POPT_ARG_STRING, &ports, 0, "Listen on the specified ports"},
868 {"profiling-level", 'P', POPT_ARG_STRING, &profile_level, 0, "Set profiling level","PROFILE_LEVEL"},
870 POPT_COMMON_DYNCONFIG
873 struct smbd_parent_context *parent = NULL;
877 struct tevent_context *ev_ctx;
878 struct messaging_context *msg_ctx;
881 * Do this before any other talloc operation
883 talloc_enable_null_tracking();
884 frame = talloc_stackframe();
886 setup_logging(argv[0], DEBUG_DEFAULT_STDOUT);
894 #ifdef HAVE_SET_AUTH_PARAMETERS
895 set_auth_parameters(argc,argv);
898 pc = poptGetContext("smbd", argc, argv, long_options, 0);
899 while((opt = poptGetNextOpt(pc)) != -1) {
904 case OPT_INTERACTIVE:
910 case OPT_NO_PROCESS_GROUP:
911 no_process_group = true;
917 print_build_options = True;
920 d_fprintf(stderr, "\nInvalid option %s: %s\n\n",
921 poptBadOption(pc, 0), poptStrerror(opt));
922 poptPrintUsage(pc, stderr, 0);
934 setup_logging(argv[0], DEBUG_STDOUT);
936 setup_logging(argv[0], DEBUG_FILE);
939 if (print_build_options) {
940 build_options(True); /* Display output to screen as well as debug */
945 /* needed for SecureWare on SCO */
949 set_remote_machine_name("smbd", False);
951 if (interactive && (DEBUGLEVEL >= 9)) {
952 talloc_enable_leak_report();
955 if (log_stdout && Fork) {
956 DEBUG(0,("ERROR: Can't log to stdout (-S) unless daemon is in foreground (-F) or interactive (-i)\n"));
960 /* we want to re-seed early to prevent time delays causing
961 client problems at a later date. (tridge) */
962 generate_random_buffer(NULL, 0);
964 /* get initial effective uid and gid */
967 /* make absolutely sure we run as root - to handle cases where people
968 are crazy enough to have it setuid */
969 gain_root_privilege();
970 gain_root_group_privilege();
973 dump_core_setup("smbd", lp_logfile());
975 /* we are never interested in SIGPIPE */
976 BlockSignals(True,SIGPIPE);
979 /* we are never interested in SIGFPE */
980 BlockSignals(True,SIGFPE);
984 /* We are no longer interested in USR2 */
985 BlockSignals(True,SIGUSR2);
988 /* POSIX demands that signals are inherited. If the invoking process has
989 * these signals masked, we will have problems, as we won't recieve them. */
990 BlockSignals(False, SIGHUP);
991 BlockSignals(False, SIGUSR1);
992 BlockSignals(False, SIGTERM);
994 /* Ensure we leave no zombies until we
995 * correctly set up child handling below. */
999 /* we want total control over the permissions on created files,
1000 so set our umask to 0 */
1005 DEBUG(0,("smbd version %s started.\n", samba_version_string()));
1006 DEBUGADD(0,("%s\n", COPYRIGHT_STARTUP_MESSAGE));
1008 DEBUG(2,("uid=%d gid=%d euid=%d egid=%d\n",
1009 (int)getuid(),(int)getgid(),(int)geteuid(),(int)getegid()));
1011 /* Output the build options to the debug log */
1012 build_options(False);
1014 if (sizeof(uint16) < 2 || sizeof(uint32) < 4) {
1015 DEBUG(0,("ERROR: Samba is not configured correctly for the word size on your machine\n"));
1019 if (!lp_load_initial_only(get_dyn_CONFIGFILE())) {
1020 DEBUG(0, ("error opening config file '%s'\n", get_dyn_CONFIGFILE()));
1024 /* Init the security context and global current_user */
1028 * Initialize the event context. The event context needs to be
1029 * initialized before the messaging context, cause the messaging
1030 * context holds an event context.
1031 * FIXME: This should be s3_tevent_context_init()
1033 ev_ctx = server_event_context();
1034 if (ev_ctx == NULL) {
1039 * Init the messaging context
1040 * FIXME: This should only call messaging_init()
1042 msg_ctx = server_messaging_context();
1043 if (msg_ctx == NULL) {
1048 * Reloading of the printers will not work here as we don't have a
1049 * server info and rpc services set up. It will be called later.
1051 if (!reload_services(NULL, -1, False)) {
1055 /* ...NOTE... Log files are working from this point! */
1057 DEBUG(3,("loaded services\n"));
1062 if (!profile_setup(msg_ctx, False)) {
1063 DEBUG(0,("ERROR: failed to setup profiling\n"));
1066 if (profile_level != NULL) {
1067 int pl = atoi(profile_level);
1068 struct server_id src;
1070 DEBUG(1, ("setting profiling level: %s\n",profile_level));
1072 set_profile_level(pl, src);
1076 if (!is_daemon && !is_a_socket(0)) {
1078 DEBUG(0,("standard input is not a socket, assuming -D option\n"));
1081 * Setting is_daemon here prevents us from eventually calling
1082 * the open_sockets_inetd()
1088 if (is_daemon && !interactive) {
1089 DEBUG( 3, ( "Becoming a daemon.\n" ) );
1090 become_daemon(Fork, no_process_group, log_stdout);
1093 generate_random_buffer((uint8_t *)&unique_id, sizeof(unique_id));
1094 set_my_unique_id(unique_id);
1098 * If we're interactive we want to set our own process group for
1099 * signal management.
1101 if (interactive && !no_process_group)
1102 setpgid( (pid_t)0, (pid_t)0);
1105 if (!directory_exist(lp_lockdir()))
1106 mkdir(lp_lockdir(), 0755);
1109 pidfile_create("smbd");
1111 status = reinit_after_fork(msg_ctx,
1113 procid_self(), false);
1114 if (!NT_STATUS_IS_OK(status)) {
1115 DEBUG(0,("reinit_after_fork() failed\n"));
1119 smbd_server_conn->msg_ctx = msg_ctx;
1121 smbd_setup_sig_term_handler();
1122 smbd_setup_sig_hup_handler(ev_ctx,
1125 /* Setup all the TDB's - including CLEAR_IF_FIRST tdb's. */
1127 if (smbd_memcache() == NULL) {
1131 memcache_set_global(smbd_memcache());
1133 /* Initialise the password backed before the global_sam_sid
1134 to ensure that we fetch from ldap before we make a domain sid up */
1136 if(!initialize_password_db(false, ev_ctx))
1139 if (!secrets_init()) {
1140 DEBUG(0, ("ERROR: smbd can not open secrets.tdb\n"));
1144 if (lp_server_role() == ROLE_DOMAIN_BDC || lp_server_role() == ROLE_DOMAIN_PDC) {
1145 if (!open_schannel_session_store(NULL, lp_private_dir())) {
1146 DEBUG(0,("ERROR: Samba cannot open schannel store for secured NETLOGON operations.\n"));
1151 if(!get_global_sam_sid()) {
1152 DEBUG(0,("ERROR: Samba cannot create a SAM SID.\n"));
1156 if (!sessionid_init()) {
1160 if (!connections_init(True))
1163 if (!locking_init())
1166 if (!messaging_tdb_parent_init(ev_ctx)) {
1170 if (!notify_internal_parent_init(ev_ctx)) {
1174 if (!serverid_parent_init(ev_ctx)) {
1178 if (!W_ERROR_IS_OK(registry_init_full()))
1181 /* Open the share_info.tdb here, so we don't have to open
1182 after the fork on every single connection. This is a small
1183 performance improvment and reduces the total number of system
1185 if (!share_info_db_init()) {
1186 DEBUG(0,("ERROR: failed to load share info db.\n"));
1190 status = init_system_info();
1191 if (!NT_STATUS_IS_OK(status)) {
1192 DEBUG(1, ("ERROR: failed to setup system user info: %s.\n",
1193 nt_errstr(status)));
1197 if (!init_guest_info()) {
1198 DEBUG(0,("ERROR: failed to setup guest info.\n"));
1202 if (!file_init(smbd_server_conn)) {
1203 DEBUG(0, ("ERROR: file_init failed\n"));
1207 /* This MUST be done before start_epmd() because otherwise
1208 * start_epmd() forks and races against dcesrv_ep_setup() to
1209 * call directory_create_or_exist() */
1210 if (!directory_create_or_exist(lp_ncalrpc_dir(), geteuid(), 0755)) {
1211 DEBUG(0, ("Failed to create pipe directory %s - %s\n",
1212 lp_ncalrpc_dir(), strerror(errno)));
1216 if (is_daemon && !interactive) {
1217 if (rpc_epmapper_daemon() == RPC_DAEMON_FORK) {
1218 start_epmd(ev_ctx, msg_ctx);
1222 if (!dcesrv_ep_setup(ev_ctx, msg_ctx)) {
1226 /* only start other daemons if we are running as a daemon
1227 * -- bad things will happen if smbd is launched via inetd
1228 * and we fork a copy of ourselves here */
1229 if (is_daemon && !interactive) {
1231 if (rpc_lsasd_daemon() == RPC_DAEMON_FORK) {
1232 start_lsasd(ev_ctx, msg_ctx);
1235 if (!_lp_disable_spoolss() &&
1236 (rpc_spoolss_daemon() != RPC_DAEMON_DISABLED)) {
1237 bool bgq = lp_parm_bool(-1, "smbd", "backgroundqueue", true);
1239 if (!printing_subsystem_init(ev_ctx, msg_ctx, true, bgq)) {
1243 } else if (!_lp_disable_spoolss() &&
1244 (rpc_spoolss_daemon() != RPC_DAEMON_DISABLED)) {
1245 if (!printing_subsystem_init(ev_ctx, msg_ctx, false, false)) {
1254 /* Started from inetd. fd 0 is the socket. */
1255 /* We will abort gracefully when the client or remote system
1257 smbd_server_conn->sock = dup(0);
1259 /* close our standard file descriptors */
1260 if (!debug_get_output_is_stdout()) {
1261 close_low_fds(False); /* Don't close stderr */
1269 smbd_setup_sig_chld_handler(ev_ctx);
1271 smbd_process(ev_ctx, smbd_server_conn);
1273 exit_server_cleanly(NULL);
1277 parent = talloc_zero(ev_ctx, struct smbd_parent_context);
1279 exit_server("talloc(struct smbd_parent_context) failed");
1281 parent->interactive = interactive;
1283 if (!open_sockets_smbd(parent, ev_ctx, msg_ctx, ports))
1284 exit_server("open_sockets_smbd() failed");
1286 /* do a printer update now that all messaging has been set up,
1287 * before we allow clients to start connecting */
1288 printing_subsystem_update(ev_ctx, msg_ctx, false);
1291 /* make sure we always have a valid stackframe */
1292 frame = talloc_stackframe();
1294 smbd_parent_loop(ev_ctx, parent);
1296 exit_server_cleanly(NULL);