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 "librpc/gen_ndr/messaging.h"
31 #include "registry/reg_init_full.h"
32 #include "libcli/auth/schannel.h"
35 #include "ctdbd_conn.h"
36 #include "printing/printer_list.h"
37 #include "rpc_server/rpc_ep_setup.h"
38 #include "printing/pcap.h"
43 extern void start_epmd(struct tevent_context *ev_ctx,
44 struct messaging_context *msg_ctx);
46 extern void start_spoolssd(struct event_context *ev_ctx,
47 struct messaging_context *msg_ctx);
50 extern int dcelogin_atmost_once;
53 static void smbd_set_server_fd(int fd)
55 struct smbd_server_connection *sconn = smbd_server_conn;
56 char addr[INET6_ADDRSTRLEN];
62 * Initialize sconn->client_id: If we can't find the client's
63 * name, default to its address.
66 client_addr(fd, sconn->client_id.addr, sizeof(sconn->client_id.addr));
68 name = client_name(sconn->sock);
69 if (strcmp(name, "UNKNOWN") != 0) {
70 name = talloc_strdup(sconn, name);
74 sconn->client_id.name =
75 (name != NULL) ? name : sconn->client_id.addr;
77 sub_set_socket_ids(sconn->client_id.addr, sconn->client_id.name,
78 client_socket_addr(sconn->sock, addr,
82 struct event_context *smbd_event_context(void)
84 return server_event_context();
87 /*******************************************************************
88 What to do when smb.conf is updated.
89 ********************************************************************/
91 static void smb_conf_updated(struct messaging_context *msg,
94 struct server_id server_id,
97 struct tevent_context *ev_ctx =
98 talloc_get_type_abort(private_data, struct tevent_context);
100 DEBUG(10,("smb_conf_updated: Got message saying smb.conf was "
101 "updated. Reloading.\n"));
102 change_to_root_user();
103 reload_services(msg, smbd_server_conn->sock, False);
105 pcap_cache_reload(ev_ctx, msg,
106 &reload_pcap_change_notify);
110 /*******************************************************************
111 What to do when printcap is updated.
112 ********************************************************************/
114 static void smb_pcap_updated(struct messaging_context *msg,
117 struct server_id server_id,
120 struct tevent_context *ev_ctx =
121 talloc_get_type_abort(private_data, struct tevent_context);
123 DEBUG(10,("Got message saying pcap was updated. Reloading.\n"));
124 change_to_root_user();
125 reload_printers(ev_ctx, msg);
128 /*******************************************************************
129 Delete a statcache entry.
130 ********************************************************************/
132 static void smb_stat_cache_delete(struct messaging_context *msg,
135 struct server_id server_id,
138 const char *name = (const char *)data->data;
139 DEBUG(10,("smb_stat_cache_delete: delete name %s\n", name));
140 stat_cache_delete(name);
143 /****************************************************************************
144 Send a SIGTERM to our process group.
145 *****************************************************************************/
147 static void killkids(void)
149 if(am_parent) kill(0,SIGTERM);
152 /****************************************************************************
153 Process a sam sync message - not sure whether to do this here or
155 ****************************************************************************/
157 static void msg_sam_sync(struct messaging_context *msg,
160 struct server_id server_id,
163 DEBUG(10, ("** sam sync message received, ignoring\n"));
166 static void msg_exit_server(struct messaging_context *msg,
169 struct server_id server_id,
172 DEBUG(3, ("got a SHUTDOWN message\n"));
173 exit_server_cleanly(NULL);
177 static void msg_inject_fault(struct messaging_context *msg,
180 struct server_id src,
185 if (data->length != sizeof(sig)) {
186 DEBUG(0, ("Process %s sent bogus signal injection request\n",
187 procid_str_static(&src)));
191 sig = *(int *)data->data;
193 exit_server("internal error injected");
198 DEBUG(0, ("Process %s requested injection of signal %d (%s)\n",
199 procid_str_static(&src), sig, strsignal(sig)));
201 DEBUG(0, ("Process %s requested injection of signal %d\n",
202 procid_str_static(&src), sig));
205 kill(sys_getpid(), sig);
207 #endif /* DEVELOPER */
210 * Parent smbd process sets its own debug level first and then
211 * sends a message to all the smbd children to adjust their debug
212 * level to that of the parent.
215 static void smbd_msg_debug(struct messaging_context *msg_ctx,
218 struct server_id server_id,
221 struct child_pid *child;
223 debug_message(msg_ctx, private_data, MSG_DEBUG, server_id, data);
225 for (child = children; child != NULL; child = child->next) {
226 messaging_send_buf(msg_ctx, pid_to_procid(child->pid),
229 strlen((char *) data->data) + 1);
233 static void add_child_pid(pid_t pid)
235 struct child_pid *child;
237 child = SMB_MALLOC_P(struct child_pid);
239 DEBUG(0, ("Could not add child struct -- malloc failed\n"));
243 DLIST_ADD(children, child);
248 at most every smbd:cleanuptime seconds (default 20), we scan the BRL
249 and locking database for entries to cleanup. As a side effect this
250 also cleans up dead entries in the connections database (due to the
251 traversal in message_send_all()
253 Using a timer for this prevents a flood of traversals when a large
254 number of clients disconnect at the same time (perhaps due to a
258 static void cleanup_timeout_fn(struct event_context *event_ctx,
259 struct timed_event *te,
263 struct timed_event **cleanup_te = (struct timed_event **)private_data;
265 DEBUG(1,("Cleaning up brl and lock database after unclean shutdown\n"));
266 message_send_all(smbd_messaging_context(), MSG_SMB_UNLOCK, NULL, 0, NULL);
267 messaging_send_buf(smbd_messaging_context(), procid_self(),
268 MSG_SMB_BRL_VALIDATE, NULL, 0);
269 /* mark the cleanup as having been done */
270 (*cleanup_te) = NULL;
273 static void remove_child_pid(pid_t pid, bool unclean_shutdown)
275 struct child_pid *child;
276 static struct timed_event *cleanup_te;
277 struct server_id child_id;
279 if (unclean_shutdown) {
280 /* a child terminated uncleanly so tickle all
281 processes to see if they can grab any of the
284 DEBUG(3,(__location__ " Unclean shutdown of pid %u\n",
287 /* call the cleanup timer, but not too often */
288 int cleanup_time = lp_parm_int(-1, "smbd", "cleanuptime", 20);
289 cleanup_te = event_add_timed(smbd_event_context(), NULL,
290 timeval_current_ofs(cleanup_time, 0),
293 DEBUG(1,("Scheduled cleanup of brl and lock database after unclean shutdown\n"));
297 child_id = procid_self(); /* Just initialize pid and potentially vnn */
300 if (!serverid_deregister(child_id)) {
301 DEBUG(1, ("Could not remove pid %d from serverid.tdb\n",
305 for (child = children; child != NULL; child = child->next) {
306 if (child->pid == pid) {
307 struct child_pid *tmp = child;
308 DLIST_REMOVE(children, child);
315 /* not all forked child processes are added to the children list */
316 DEBUG(1, ("Could not find child %d -- ignoring\n", (int)pid));
319 /****************************************************************************
320 Have we reached the process limit ?
321 ****************************************************************************/
323 static bool allowable_number_of_smbd_processes(void)
325 int max_processes = lp_max_smbd_processes();
330 return num_children < max_processes;
333 static void smbd_sig_chld_handler(struct tevent_context *ev,
334 struct tevent_signal *se,
343 while ((pid = sys_waitpid(-1, &status, WNOHANG)) > 0) {
344 bool unclean_shutdown = False;
346 /* If the child terminated normally, assume
347 it was an unclean shutdown unless the
350 if (WIFEXITED(status)) {
351 unclean_shutdown = WEXITSTATUS(status);
353 /* If the child terminated due to a signal
354 we always assume it was unclean.
356 if (WIFSIGNALED(status)) {
357 unclean_shutdown = True;
359 remove_child_pid(pid, unclean_shutdown);
363 static void smbd_setup_sig_chld_handler(void)
365 struct tevent_signal *se;
367 se = tevent_add_signal(smbd_event_context(),
368 smbd_event_context(),
370 smbd_sig_chld_handler,
373 exit_server("failed to setup SIGCHLD handler");
377 struct smbd_open_socket;
379 struct smbd_parent_context {
382 /* the list of listening sockets */
383 struct smbd_open_socket *sockets;
386 struct smbd_open_socket {
387 struct smbd_open_socket *prev, *next;
388 struct smbd_parent_context *parent;
390 struct tevent_fd *fde;
393 static void smbd_open_socket_close_fn(struct tevent_context *ev,
394 struct tevent_fd *fde,
398 /* this might be the socket_wrapper swrap_close() */
402 static void smbd_accept_connection(struct tevent_context *ev,
403 struct tevent_fd *fde,
407 struct smbd_open_socket *s = talloc_get_type_abort(private_data,
408 struct smbd_open_socket);
409 struct sockaddr_storage addr;
410 socklen_t in_addrlen = sizeof(addr);
415 fd = accept(s->fd, (struct sockaddr *)(void *)&addr,&in_addrlen);
416 smbd_set_server_fd(fd);
418 if (fd == -1 && errno == EINTR)
422 DEBUG(0,("open_sockets_smbd: accept: %s\n",
427 if (s->parent->interactive) {
428 smbd_process(smbd_server_conn);
429 exit_server_cleanly("end of interactive mode");
433 if (!allowable_number_of_smbd_processes()) {
435 smbd_set_server_fd(-1);
440 * Generate a unique id in the parent process so that we use
441 * the global random state in the parent.
443 generate_random_buffer((uint8_t *)&unique_id, sizeof(unique_id));
447 NTSTATUS status = NT_STATUS_OK;
452 set_my_unique_id(unique_id);
454 /* Stop zombies, the parent explicitly handles
455 * them, counting worker smbds. */
458 /* close our standard file
460 close_low_fds(False);
463 * Can't use TALLOC_FREE here. Nulling out the argument to it
464 * would overwrite memory we've just freed.
466 talloc_free(s->parent);
469 status = reinit_after_fork(smbd_messaging_context(),
470 smbd_event_context(), procid_self(),
472 if (!NT_STATUS_IS_OK(status)) {
473 if (NT_STATUS_EQUAL(status,
474 NT_STATUS_TOO_MANY_OPENED_FILES)) {
475 DEBUG(0,("child process cannot initialize "
476 "because too many files are open\n"));
479 DEBUG(0,("reinit_after_fork() failed\n"));
480 smb_panic("reinit_after_fork() failed");
483 smbd_setup_sig_term_handler();
484 smbd_setup_sig_hup_handler(server_event_context(),
485 server_messaging_context());
487 if (!serverid_register(procid_self(),
488 FLAG_MSG_GENERAL|FLAG_MSG_SMBD
490 |FLAG_MSG_PRINT_GENERAL)) {
491 exit_server_cleanly("Could not register myself in "
495 smbd_process(smbd_server_conn);
497 exit_server_cleanly("end of child");
502 DEBUG(0,("smbd_accept_connection: sys_fork() failed: %s\n",
506 /* The parent doesn't need this socket */
509 /* Sun May 6 18:56:14 2001 ackley@cs.unm.edu:
510 Clear the closed fd info out of server_fd --
511 and more importantly, out of client_fd in
512 util_sock.c, to avoid a possible
513 getpeername failure if we reopen the logs
514 and use %I in the filename.
517 smbd_set_server_fd(-1);
523 /* Force parent to check log size after
524 * spawning child. Fix from
525 * klausr@ITAP.Physik.Uni-Stuttgart.De. The
526 * parent smbd will log to logserver.smb. It
527 * writes only two messages for each child
528 * started/finished. But each child writes,
529 * say, 50 messages also in logserver.smb,
530 * begining with the debug_count of the
531 * parent, before the child opens its own log
532 * file logserver.client. In a worst case
533 * scenario the size of logserver.smb would be
534 * checked after about 50*50=2500 messages
537 force_check_log_size();
540 static bool smbd_open_one_socket(struct smbd_parent_context *parent,
541 const struct sockaddr_storage *ifss,
544 struct smbd_open_socket *s;
546 s = talloc(parent, struct smbd_open_socket);
552 s->fd = open_socket_in(SOCK_STREAM,
554 parent->sockets == NULL ? 0 : 2,
558 DEBUG(0,("smbd_open_once_socket: open_socket_in: "
559 "%s\n", strerror(errno)));
562 * We ignore an error here, as we've done before
567 /* ready to listen */
568 set_socket_options(s->fd, "SO_KEEPALIVE");
569 set_socket_options(s->fd, lp_socket_options());
571 /* Set server socket to
572 * non-blocking for the accept. */
573 set_blocking(s->fd, False);
575 if (listen(s->fd, SMBD_LISTEN_BACKLOG) == -1) {
576 DEBUG(0,("open_sockets_smbd: listen: "
577 "%s\n", strerror(errno)));
583 s->fde = tevent_add_fd(smbd_event_context(),
585 s->fd, TEVENT_FD_READ,
586 smbd_accept_connection,
589 DEBUG(0,("open_sockets_smbd: "
590 "tevent_add_fd: %s\n",
596 tevent_fd_set_close_fn(s->fde, smbd_open_socket_close_fn);
598 DLIST_ADD_END(parent->sockets, s, struct smbd_open_socket *);
603 static bool smbd_parent_housekeeping(const struct timeval *now, void *private_data)
605 time_t printcap_cache_time = (time_t)lp_printcap_cache_time();
606 time_t t = time_mono(NULL);
608 DEBUG(5, ("parent housekeeping\n"));
610 /* if periodic printcap rescan is enabled, see if it's time to reload */
611 if ((printcap_cache_time != 0)
612 && (t >= (last_printer_reload_time + printcap_cache_time))) {
613 DEBUG( 3,( "Printcap cache time expired.\n"));
614 pcap_cache_reload(server_event_context(),
615 smbd_messaging_context(),
616 &reload_pcap_change_notify);
617 last_printer_reload_time = t;
623 /****************************************************************************
624 Open the socket communication.
625 ****************************************************************************/
627 static bool open_sockets_smbd(struct smbd_parent_context *parent,
628 struct messaging_context *msg_ctx,
629 const char *smb_ports)
631 int num_interfaces = iface_count();
634 unsigned dns_port = 0;
641 smbd_setup_sig_chld_handler();
643 /* use a reasonable default set of ports - listing on 445 and 139 */
645 ports = lp_smb_ports();
646 if (!ports || !*ports) {
647 ports = talloc_strdup(talloc_tos(), SMB_PORTS);
649 ports = talloc_strdup(talloc_tos(), ports);
652 ports = talloc_strdup(talloc_tos(), smb_ports);
655 if (lp_interfaces() && lp_bind_interfaces_only()) {
656 /* We have been given an interfaces line, and been
657 told to only bind to those interfaces. Create a
658 socket per interface and bind to only these.
661 /* Now open a listen socket for each of the
663 for(i = 0; i < num_interfaces; i++) {
664 const struct sockaddr_storage *ifss =
665 iface_n_sockaddr_storage(i);
670 DEBUG(0,("open_sockets_smbd: "
671 "interface %d has NULL IP address !\n",
677 next_token_talloc(talloc_tos(),&ptr, &tok, " \t,");) {
678 unsigned port = atoi(tok);
679 if (port == 0 || port > 0xffff) {
683 if (!smbd_open_one_socket(parent, ifss, port)) {
689 /* Just bind to 0.0.0.0 - accept connections
694 const char *sock_addr = lp_socket_address();
696 const char *sock_ptr;
698 if (strequal(sock_addr, "0.0.0.0") ||
699 strequal(sock_addr, "::")) {
701 sock_addr = "::,0.0.0.0";
703 sock_addr = "0.0.0.0";
707 for (sock_ptr=sock_addr;
708 next_token_talloc(talloc_tos(), &sock_ptr, &sock_tok, " \t,"); ) {
709 for (ptr=ports; next_token_talloc(talloc_tos(), &ptr, &tok, " \t,"); ) {
710 struct sockaddr_storage ss;
712 unsigned port = atoi(tok);
713 if (port == 0 || port > 0xffff) {
717 /* Keep the first port for mDNS service
724 /* open an incoming socket */
725 if (!interpret_string_addr(&ss, sock_tok,
726 AI_NUMERICHOST|AI_PASSIVE)) {
730 if (!smbd_open_one_socket(parent, &ss, port)) {
737 if (parent->sockets == NULL) {
738 DEBUG(0,("open_sockets_smbd: No "
739 "sockets available to bind to.\n"));
743 /* Setup the main smbd so that we can get messages. Note that
744 do this after starting listening. This is needed as when in
745 clustered mode, ctdb won't allow us to start doing database
746 operations until it has gone thru a full startup, which
747 includes checking to see that smbd is listening. */
749 if (!serverid_register(procid_self(),
750 FLAG_MSG_GENERAL|FLAG_MSG_SMBD
752 DEBUG(0, ("open_sockets_smbd: Failed to register "
753 "myself in serverid.tdb\n"));
757 if (!(event_add_idle(smbd_event_context(), NULL,
758 timeval_set(SMBD_HOUSEKEEPING_INTERVAL, 0),
759 "parent_housekeeping", smbd_parent_housekeeping,
761 DEBUG(0, ("Could not add parent_housekeeping event\n"));
765 /* Listen to messages */
767 messaging_register(msg_ctx, NULL, MSG_SMB_SAM_SYNC, msg_sam_sync);
768 messaging_register(msg_ctx, NULL, MSG_SHUTDOWN, msg_exit_server);
769 messaging_register(msg_ctx, NULL, MSG_SMB_FILE_RENAME,
770 msg_file_was_renamed);
771 messaging_register(msg_ctx, server_event_context(), MSG_SMB_CONF_UPDATED,
773 messaging_register(msg_ctx, NULL, MSG_SMB_STAT_CACHE_DELETE,
774 smb_stat_cache_delete);
775 messaging_register(msg_ctx, NULL, MSG_DEBUG, smbd_msg_debug);
776 messaging_register(msg_ctx, server_event_context(), MSG_PRINTER_PCAP,
778 brl_register_msgs(msg_ctx);
780 msg_idmap_register_msgs(msg_ctx);
782 #ifdef CLUSTER_SUPPORT
783 if (lp_clustering()) {
784 ctdbd_register_reconfigure(messaging_ctdbd_connection());
789 messaging_register(msg_ctx, NULL, MSG_SMB_INJECT_FAULT,
793 if (lp_multicast_dns_register() && (dns_port != 0)) {
794 #ifdef WITH_DNSSD_SUPPORT
795 smbd_setup_mdns_registration(smbd_event_context(),
798 #ifdef WITH_AVAHI_SUPPORT
801 avahi_conn = avahi_start_register(
802 smbd_event_context(), smbd_event_context(), dns_port);
803 if (avahi_conn == NULL) {
804 DEBUG(10, ("avahi_start_register failed\n"));
812 static void smbd_parent_loop(struct smbd_parent_context *parent)
814 /* now accept incoming connections - forking a new process
815 for each incoming connection */
816 DEBUG(2,("waiting for connections\n"));
819 TALLOC_CTX *frame = talloc_stackframe();
821 ret = tevent_loop_once(smbd_event_context());
823 exit_server_cleanly("tevent_loop_once() error");
829 /* NOTREACHED return True; */
833 /****************************************************************************
834 Initialise connect, service and file structs.
835 ****************************************************************************/
837 static bool init_structs(void )
840 * Set the machine NETBIOS name if not already
841 * set from the config file.
853 /****************************************************************************
855 ****************************************************************************/
857 /* Declare prototype for build_options() to avoid having to run it through
858 mkproto.h. Mixing $(builddir) and $(srcdir) source files in the current
859 prototype generation system is too complicated. */
861 extern void build_options(bool screen);
863 int main(int argc,const char *argv[])
865 /* shall I run as a daemon */
866 bool is_daemon = false;
867 bool interactive = false;
869 bool no_process_group = false;
870 bool log_stdout = false;
872 char *profile_level = NULL;
875 bool print_build_options = False;
880 OPT_NO_PROCESS_GROUP,
883 struct poptOption long_options[] = {
885 {"daemon", 'D', POPT_ARG_NONE, NULL, OPT_DAEMON, "Become a daemon (default)" },
886 {"interactive", 'i', POPT_ARG_NONE, NULL, OPT_INTERACTIVE, "Run interactive (not a daemon)"},
887 {"foreground", 'F', POPT_ARG_NONE, NULL, OPT_FORK, "Run daemon in foreground (for daemontools, etc.)" },
888 {"no-process-group", '\0', POPT_ARG_NONE, NULL, OPT_NO_PROCESS_GROUP, "Don't create a new process group" },
889 {"log-stdout", 'S', POPT_ARG_NONE, NULL, OPT_LOG_STDOUT, "Log to stdout" },
890 {"build-options", 'b', POPT_ARG_NONE, NULL, 'b', "Print build options" },
891 {"port", 'p', POPT_ARG_STRING, &ports, 0, "Listen on the specified ports"},
892 {"profiling-level", 'P', POPT_ARG_STRING, &profile_level, 0, "Set profiling level","PROFILE_LEVEL"},
894 POPT_COMMON_DYNCONFIG
897 struct smbd_parent_context *parent = NULL;
903 * Do this before any other talloc operation
905 talloc_enable_null_tracking();
906 frame = talloc_stackframe();
910 /* Initialize the event context, it will panic on error */
911 smbd_event_context();
917 #ifdef HAVE_SET_AUTH_PARAMETERS
918 set_auth_parameters(argc,argv);
921 pc = poptGetContext("smbd", argc, argv, long_options, 0);
922 while((opt = poptGetNextOpt(pc)) != -1) {
927 case OPT_INTERACTIVE:
933 case OPT_NO_PROCESS_GROUP:
934 no_process_group = true;
940 print_build_options = True;
943 d_fprintf(stderr, "\nInvalid option %s: %s\n\n",
944 poptBadOption(pc, 0), poptStrerror(opt));
945 poptPrintUsage(pc, stderr, 0);
957 setup_logging(argv[0], DEBUG_STDOUT);
959 setup_logging(argv[0], DEBUG_FILE);
962 if (print_build_options) {
963 build_options(True); /* Display output to screen as well as debug */
968 /* needed for SecureWare on SCO */
972 set_remote_machine_name("smbd", False);
974 if (interactive && (DEBUGLEVEL >= 9)) {
975 talloc_enable_leak_report();
978 if (log_stdout && Fork) {
979 DEBUG(0,("ERROR: Can't log to stdout (-S) unless daemon is in foreground (-F) or interactive (-i)\n"));
983 /* we want to re-seed early to prevent time delays causing
984 client problems at a later date. (tridge) */
985 generate_random_buffer(NULL, 0);
987 /* get initial effective uid and gid */
990 /* make absolutely sure we run as root - to handle cases where people
991 are crazy enough to have it setuid */
992 gain_root_privilege();
993 gain_root_group_privilege();
996 dump_core_setup("smbd", lp_logfile());
998 /* we are never interested in SIGPIPE */
999 BlockSignals(True,SIGPIPE);
1002 /* we are never interested in SIGFPE */
1003 BlockSignals(True,SIGFPE);
1006 #if defined(SIGUSR2)
1007 /* We are no longer interested in USR2 */
1008 BlockSignals(True,SIGUSR2);
1011 /* POSIX demands that signals are inherited. If the invoking process has
1012 * these signals masked, we will have problems, as we won't recieve them. */
1013 BlockSignals(False, SIGHUP);
1014 BlockSignals(False, SIGUSR1);
1015 BlockSignals(False, SIGTERM);
1017 /* Ensure we leave no zombies until we
1018 * correctly set up child handling below. */
1022 /* we want total control over the permissions on created files,
1023 so set our umask to 0 */
1028 DEBUG(0,("smbd version %s started.\n", samba_version_string()));
1029 DEBUGADD(0,("%s\n", COPYRIGHT_STARTUP_MESSAGE));
1031 DEBUG(2,("uid=%d gid=%d euid=%d egid=%d\n",
1032 (int)getuid(),(int)getgid(),(int)geteuid(),(int)getegid()));
1034 /* Output the build options to the debug log */
1035 build_options(False);
1037 if (sizeof(uint16) < 2 || sizeof(uint32) < 4) {
1038 DEBUG(0,("ERROR: Samba is not configured correctly for the word size on your machine\n"));
1042 if (!lp_load_initial_only(get_dyn_CONFIGFILE())) {
1043 DEBUG(0, ("error opening config file '%s'\n", get_dyn_CONFIGFILE()));
1047 /* Init the security context and global current_user */
1050 if (smbd_messaging_context() == NULL)
1054 * Reloading of the printers will not work here as we don't have a
1055 * server info and rpc services set up. It will be called later.
1057 if (!reload_services(smbd_messaging_context(), -1, False)) {
1061 /* ...NOTE... Log files are working from this point! */
1063 DEBUG(3,("loaded services\n"));
1068 if (!profile_setup(smbd_messaging_context(), False)) {
1069 DEBUG(0,("ERROR: failed to setup profiling\n"));
1072 if (profile_level != NULL) {
1073 int pl = atoi(profile_level);
1074 struct server_id src;
1076 DEBUG(1, ("setting profiling level: %s\n",profile_level));
1078 set_profile_level(pl, src);
1082 if (!is_daemon && !is_a_socket(0)) {
1084 DEBUG(0,("standard input is not a socket, assuming -D option\n"));
1087 * Setting is_daemon here prevents us from eventually calling
1088 * the open_sockets_inetd()
1094 if (is_daemon && !interactive) {
1095 DEBUG( 3, ( "Becoming a daemon.\n" ) );
1096 become_daemon(Fork, no_process_group, log_stdout);
1099 generate_random_buffer((uint8_t *)&unique_id, sizeof(unique_id));
1100 set_my_unique_id(unique_id);
1104 * If we're interactive we want to set our own process group for
1105 * signal management.
1107 if (interactive && !no_process_group)
1108 setpgid( (pid_t)0, (pid_t)0);
1111 if (!directory_exist(lp_lockdir()))
1112 mkdir(lp_lockdir(), 0755);
1115 pidfile_create("smbd");
1117 status = reinit_after_fork(smbd_messaging_context(),
1118 smbd_event_context(),
1119 procid_self(), false);
1120 if (!NT_STATUS_IS_OK(status)) {
1121 DEBUG(0,("reinit_after_fork() failed\n"));
1125 smbd_server_conn->msg_ctx = smbd_messaging_context();
1127 smbd_setup_sig_term_handler();
1128 smbd_setup_sig_hup_handler(smbd_event_context(),
1129 smbd_server_conn->msg_ctx);
1131 /* Setup all the TDB's - including CLEAR_IF_FIRST tdb's. */
1133 if (smbd_memcache() == NULL) {
1137 memcache_set_global(smbd_memcache());
1139 /* Initialise the password backed before the global_sam_sid
1140 to ensure that we fetch from ldap before we make a domain sid up */
1142 if(!initialize_password_db(False, smbd_event_context()))
1145 if (!secrets_init()) {
1146 DEBUG(0, ("ERROR: smbd can not open secrets.tdb\n"));
1150 if (lp_server_role() == ROLE_DOMAIN_BDC || lp_server_role() == ROLE_DOMAIN_PDC) {
1151 if (!open_schannel_session_store(NULL, lp_private_dir())) {
1152 DEBUG(0,("ERROR: Samba cannot open schannel store for secured NETLOGON operations.\n"));
1157 if(!get_global_sam_sid()) {
1158 DEBUG(0,("ERROR: Samba cannot create a SAM SID.\n"));
1162 if (!sessionid_init()) {
1166 if (!connections_init(True))
1169 if (!locking_init())
1172 if (!messaging_tdb_parent_init(smbd_event_context())) {
1176 if (!notify_internal_parent_init(smbd_event_context())) {
1180 if (!serverid_parent_init(smbd_event_context())) {
1184 if (!printer_list_parent_init()) {
1188 if (!W_ERROR_IS_OK(registry_init_full()))
1191 if (!print_backend_init(smbd_messaging_context()))
1194 /* Open the share_info.tdb here, so we don't have to open
1195 after the fork on every single connection. This is a small
1196 performance improvment and reduces the total number of system
1198 if (!share_info_db_init()) {
1199 DEBUG(0,("ERROR: failed to load share info db.\n"));
1203 status = init_system_info();
1204 if (!NT_STATUS_IS_OK(status)) {
1205 DEBUG(1, ("ERROR: failed to setup system user info: %s.\n",
1206 nt_errstr(status)));
1210 if (!init_guest_info()) {
1211 DEBUG(0,("ERROR: failed to setup guest info.\n"));
1215 if (!file_init(smbd_server_conn)) {
1216 DEBUG(0, ("ERROR: file_init failed\n"));
1220 if (is_daemon && !interactive) {
1221 const char *rpcsrv_type;
1223 rpcsrv_type = lp_parm_const_string(GLOBAL_SECTION_SNUM,
1224 "rpc_server", "epmapper",
1226 if (StrCaseCmp(rpcsrv_type, "daemon") == 0) {
1227 start_epmd(smbd_event_context(),
1228 smbd_server_conn->msg_ctx);
1232 if (!dcesrv_ep_setup(smbd_event_context(), smbd_server_conn->msg_ctx)) {
1236 /* Publish nt printers, this requires a working winreg pipe */
1237 pcap_cache_reload(server_event_context(), smbd_messaging_context(),
1240 /* only start the background queue daemon if we are
1241 running as a daemon -- bad things will happen if
1242 smbd is launched via inetd and we fork a copy of
1245 if (is_daemon && !interactive
1246 && lp_parm_bool(-1, "smbd", "backgroundqueue", true)) {
1247 start_background_queue(smbd_event_context(),
1248 smbd_messaging_context());
1251 if (is_daemon && !_lp_disable_spoolss()) {
1252 const char *rpcsrv_type;
1254 /* start spoolss daemon */
1255 /* start as a separate daemon only if enabled */
1256 rpcsrv_type = lp_parm_const_string(GLOBAL_SECTION_SNUM,
1257 "rpc_server", "spoolss",
1259 if (StrCaseCmp(rpcsrv_type, "daemon") == 0) {
1260 start_spoolssd(smbd_event_context(),
1261 smbd_messaging_context());
1269 /* Started from inetd. fd 0 is the socket. */
1270 /* We will abort gracefully when the client or remote system
1272 smbd_set_server_fd(dup(0));
1274 /* close our standard file descriptors */
1275 close_low_fds(False); /* Don't close stderr */
1282 smbd_setup_sig_chld_handler();
1284 smbd_process(smbd_server_conn);
1286 exit_server_cleanly(NULL);
1290 parent = talloc_zero(smbd_event_context(), struct smbd_parent_context);
1292 exit_server("talloc(struct smbd_parent_context) failed");
1294 parent->interactive = interactive;
1296 if (!open_sockets_smbd(parent, smbd_messaging_context(), ports))
1297 exit_server("open_sockets_smbd() failed");
1300 /* make sure we always have a valid stackframe */
1301 frame = talloc_stackframe();
1303 smbd_parent_loop(parent);
1305 exit_server_cleanly(NULL);