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 "popt_common.h"
26 #include "smbd/globals.h"
27 #include "librpc/gen_ndr/messaging.h"
29 #include "libcli/auth/schannel.h"
32 #include "../librpc/gen_ndr/srv_dfs.h"
33 #include "../librpc/gen_ndr/srv_dssetup.h"
34 #include "../librpc/gen_ndr/srv_echo.h"
35 #include "../librpc/gen_ndr/srv_eventlog.h"
36 #include "../librpc/gen_ndr/srv_initshutdown.h"
37 #include "../librpc/gen_ndr/srv_lsa.h"
38 #include "../librpc/gen_ndr/srv_netlogon.h"
39 #include "../librpc/gen_ndr/srv_ntsvcs.h"
40 #include "../librpc/gen_ndr/srv_samr.h"
41 #include "../librpc/gen_ndr/srv_spoolss.h"
42 #include "../librpc/gen_ndr/srv_srvsvc.h"
43 #include "../librpc/gen_ndr/srv_svcctl.h"
44 #include "../librpc/gen_ndr/srv_winreg.h"
45 #include "../librpc/gen_ndr/srv_wkssvc.h"
47 #include "printing/nt_printing_migrate.h"
52 extern int dcelogin_atmost_once;
55 int smbd_server_fd(void)
60 static void smbd_set_server_fd(int fd)
65 struct event_context *smbd_event_context(void)
67 return server_event_context();
70 /*******************************************************************
71 What to do when smb.conf is updated.
72 ********************************************************************/
74 static void smb_conf_updated(struct messaging_context *msg,
77 struct server_id server_id,
80 DEBUG(10,("smb_conf_updated: Got message saying smb.conf was "
81 "updated. Reloading.\n"));
82 change_to_root_user();
83 reload_services(msg, False);
87 /*******************************************************************
88 Delete a statcache entry.
89 ********************************************************************/
91 static void smb_stat_cache_delete(struct messaging_context *msg,
94 struct server_id server_id,
97 const char *name = (const char *)data->data;
98 DEBUG(10,("smb_stat_cache_delete: delete name %s\n", name));
99 stat_cache_delete(name);
102 /****************************************************************************
103 Send a SIGTERM to our process group.
104 *****************************************************************************/
106 static void killkids(void)
108 if(am_parent) kill(0,SIGTERM);
111 /****************************************************************************
112 Process a sam sync message - not sure whether to do this here or
114 ****************************************************************************/
116 static void msg_sam_sync(struct messaging_context *msg,
119 struct server_id server_id,
122 DEBUG(10, ("** sam sync message received, ignoring\n"));
125 static void msg_exit_server(struct messaging_context *msg,
128 struct server_id server_id,
131 DEBUG(3, ("got a SHUTDOWN message\n"));
132 exit_server_cleanly(NULL);
136 static void msg_inject_fault(struct messaging_context *msg,
139 struct server_id src,
144 if (data->length != sizeof(sig)) {
145 DEBUG(0, ("Process %s sent bogus signal injection request\n",
146 procid_str_static(&src)));
150 sig = *(int *)data->data;
152 exit_server("internal error injected");
157 DEBUG(0, ("Process %s requested injection of signal %d (%s)\n",
158 procid_str_static(&src), sig, strsignal(sig)));
160 DEBUG(0, ("Process %s requested injection of signal %d\n",
161 procid_str_static(&src), sig));
164 kill(sys_getpid(), sig);
166 #endif /* DEVELOPER */
169 * Parent smbd process sets its own debug level first and then
170 * sends a message to all the smbd children to adjust their debug
171 * level to that of the parent.
174 static void smbd_msg_debug(struct messaging_context *msg_ctx,
177 struct server_id server_id,
180 struct child_pid *child;
182 debug_message(msg_ctx, private_data, MSG_DEBUG, server_id, data);
184 for (child = children; child != NULL; child = child->next) {
185 messaging_send_buf(msg_ctx, pid_to_procid(child->pid),
188 strlen((char *) data->data) + 1);
192 static void add_child_pid(pid_t pid)
194 struct child_pid *child;
196 child = SMB_MALLOC_P(struct child_pid);
198 DEBUG(0, ("Could not add child struct -- malloc failed\n"));
202 DLIST_ADD(children, child);
207 at most every smbd:cleanuptime seconds (default 20), we scan the BRL
208 and locking database for entries to cleanup. As a side effect this
209 also cleans up dead entries in the connections database (due to the
210 traversal in message_send_all()
212 Using a timer for this prevents a flood of traversals when a large
213 number of clients disconnect at the same time (perhaps due to a
217 static void cleanup_timeout_fn(struct event_context *event_ctx,
218 struct timed_event *te,
222 struct timed_event **cleanup_te = (struct timed_event **)private_data;
224 DEBUG(1,("Cleaning up brl and lock database after unclean shutdown\n"));
225 message_send_all(smbd_messaging_context(), MSG_SMB_UNLOCK, NULL, 0, NULL);
226 messaging_send_buf(smbd_messaging_context(), procid_self(),
227 MSG_SMB_BRL_VALIDATE, NULL, 0);
228 /* mark the cleanup as having been done */
229 (*cleanup_te) = NULL;
232 static void remove_child_pid(pid_t pid, bool unclean_shutdown)
234 struct child_pid *child;
235 static struct timed_event *cleanup_te;
236 struct server_id child_id;
238 if (unclean_shutdown) {
239 /* a child terminated uncleanly so tickle all
240 processes to see if they can grab any of the
243 DEBUG(3,(__location__ " Unclean shutdown of pid %u\n",
246 /* call the cleanup timer, but not too often */
247 int cleanup_time = lp_parm_int(-1, "smbd", "cleanuptime", 20);
248 cleanup_te = event_add_timed(smbd_event_context(), NULL,
249 timeval_current_ofs(cleanup_time, 0),
252 DEBUG(1,("Scheduled cleanup of brl and lock database after unclean shutdown\n"));
256 child_id = procid_self(); /* Just initialize pid and potentially vnn */
259 if (!serverid_deregister(child_id)) {
260 DEBUG(1, ("Could not remove pid %d from serverid.tdb\n",
264 for (child = children; child != NULL; child = child->next) {
265 if (child->pid == pid) {
266 struct child_pid *tmp = child;
267 DLIST_REMOVE(children, child);
274 DEBUG(0, ("Could not find child %d -- ignoring\n", (int)pid));
277 /****************************************************************************
278 Have we reached the process limit ?
279 ****************************************************************************/
281 static bool allowable_number_of_smbd_processes(void)
283 int max_processes = lp_max_smbd_processes();
288 return num_children < max_processes;
291 static void smbd_sig_chld_handler(struct tevent_context *ev,
292 struct tevent_signal *se,
301 while ((pid = sys_waitpid(-1, &status, WNOHANG)) > 0) {
302 bool unclean_shutdown = False;
304 /* If the child terminated normally, assume
305 it was an unclean shutdown unless the
308 if (WIFEXITED(status)) {
309 unclean_shutdown = WEXITSTATUS(status);
311 /* If the child terminated due to a signal
312 we always assume it was unclean.
314 if (WIFSIGNALED(status)) {
315 unclean_shutdown = True;
317 remove_child_pid(pid, unclean_shutdown);
321 static void smbd_setup_sig_chld_handler(void)
323 struct tevent_signal *se;
325 se = tevent_add_signal(smbd_event_context(),
326 smbd_event_context(),
328 smbd_sig_chld_handler,
331 exit_server("failed to setup SIGCHLD handler");
335 struct smbd_open_socket;
337 struct smbd_parent_context {
340 /* the list of listening sockets */
341 struct smbd_open_socket *sockets;
344 struct smbd_open_socket {
345 struct smbd_open_socket *prev, *next;
346 struct smbd_parent_context *parent;
348 struct tevent_fd *fde;
351 static void smbd_open_socket_close_fn(struct tevent_context *ev,
352 struct tevent_fd *fde,
356 /* this might be the socket_wrapper swrap_close() */
360 static void smbd_accept_connection(struct tevent_context *ev,
361 struct tevent_fd *fde,
365 struct smbd_open_socket *s = talloc_get_type_abort(private_data,
366 struct smbd_open_socket);
367 struct sockaddr_storage addr;
368 socklen_t in_addrlen = sizeof(addr);
372 smbd_set_server_fd(accept(s->fd, (struct sockaddr *)(void *)&addr,&in_addrlen));
374 if (smbd_server_fd() == -1 && errno == EINTR)
377 if (smbd_server_fd() == -1) {
378 DEBUG(0,("open_sockets_smbd: accept: %s\n",
383 if (s->parent->interactive) {
384 smbd_process(smbd_server_conn);
385 exit_server_cleanly("end of interactive mode");
389 if (!allowable_number_of_smbd_processes()) {
390 close(smbd_server_fd());
391 smbd_set_server_fd(-1);
396 * Generate a unique id in the parent process so that we use
397 * the global random state in the parent.
399 generate_random_buffer((uint8_t *)&unique_id, sizeof(unique_id));
403 NTSTATUS status = NT_STATUS_OK;
408 set_my_unique_id(unique_id);
410 /* Stop zombies, the parent explicitly handles
411 * them, counting worker smbds. */
414 /* close our standard file
416 close_low_fds(False);
419 * Can't use TALLOC_FREE here. Nulling out the argument to it
420 * would overwrite memory we've just freed.
422 talloc_free(s->parent);
425 status = reinit_after_fork(smbd_messaging_context(),
426 smbd_event_context(), procid_self(),
428 if (!NT_STATUS_IS_OK(status)) {
429 if (NT_STATUS_EQUAL(status,
430 NT_STATUS_TOO_MANY_OPENED_FILES)) {
431 DEBUG(0,("child process cannot initialize "
432 "because too many files are open\n"));
435 DEBUG(0,("reinit_after_fork() failed\n"));
436 smb_panic("reinit_after_fork() failed");
439 smbd_setup_sig_term_handler();
440 smbd_setup_sig_hup_handler(server_event_context(),
441 server_messaging_context());
443 if (!serverid_register(procid_self(),
444 FLAG_MSG_GENERAL|FLAG_MSG_SMBD
446 |FLAG_MSG_PRINT_GENERAL)) {
447 exit_server_cleanly("Could not register myself in "
451 smbd_process(smbd_server_conn);
453 exit_server_cleanly("end of child");
458 DEBUG(0,("smbd_accept_connection: sys_fork() failed: %s\n",
462 /* The parent doesn't need this socket */
463 close(smbd_server_fd());
465 /* Sun May 6 18:56:14 2001 ackley@cs.unm.edu:
466 Clear the closed fd info out of server_fd --
467 and more importantly, out of client_fd in
468 util_sock.c, to avoid a possible
469 getpeername failure if we reopen the logs
470 and use %I in the filename.
473 smbd_set_server_fd(-1);
479 /* Force parent to check log size after
480 * spawning child. Fix from
481 * klausr@ITAP.Physik.Uni-Stuttgart.De. The
482 * parent smbd will log to logserver.smb. It
483 * writes only two messages for each child
484 * started/finished. But each child writes,
485 * say, 50 messages also in logserver.smb,
486 * begining with the debug_count of the
487 * parent, before the child opens its own log
488 * file logserver.client. In a worst case
489 * scenario the size of logserver.smb would be
490 * checked after about 50*50=2500 messages
493 force_check_log_size();
496 static bool smbd_open_one_socket(struct smbd_parent_context *parent,
497 const struct sockaddr_storage *ifss,
500 struct smbd_open_socket *s;
502 s = talloc(parent, struct smbd_open_socket);
508 s->fd = open_socket_in(SOCK_STREAM,
510 parent->sockets == NULL ? 0 : 2,
514 DEBUG(0,("smbd_open_once_socket: open_socket_in: "
515 "%s\n", strerror(errno)));
518 * We ignore an error here, as we've done before
523 /* ready to listen */
524 set_socket_options(s->fd, "SO_KEEPALIVE");
525 set_socket_options(s->fd, lp_socket_options());
527 /* Set server socket to
528 * non-blocking for the accept. */
529 set_blocking(s->fd, False);
531 if (listen(s->fd, SMBD_LISTEN_BACKLOG) == -1) {
532 DEBUG(0,("open_sockets_smbd: listen: "
533 "%s\n", strerror(errno)));
539 s->fde = tevent_add_fd(smbd_event_context(),
541 s->fd, TEVENT_FD_READ,
542 smbd_accept_connection,
545 DEBUG(0,("open_sockets_smbd: "
546 "tevent_add_fd: %s\n",
552 tevent_fd_set_close_fn(s->fde, smbd_open_socket_close_fn);
554 DLIST_ADD_END(parent->sockets, s, struct smbd_open_socket *);
559 /****************************************************************************
560 Open the socket communication.
561 ****************************************************************************/
563 static bool open_sockets_smbd(struct smbd_parent_context *parent,
564 const char *smb_ports)
566 int num_interfaces = iface_count();
569 unsigned dns_port = 0;
576 smbd_setup_sig_chld_handler();
578 /* use a reasonable default set of ports - listing on 445 and 139 */
580 ports = lp_smb_ports();
581 if (!ports || !*ports) {
582 ports = talloc_strdup(talloc_tos(), SMB_PORTS);
584 ports = talloc_strdup(talloc_tos(), ports);
587 ports = talloc_strdup(talloc_tos(), smb_ports);
590 if (lp_interfaces() && lp_bind_interfaces_only()) {
591 /* We have been given an interfaces line, and been
592 told to only bind to those interfaces. Create a
593 socket per interface and bind to only these.
596 /* Now open a listen socket for each of the
598 for(i = 0; i < num_interfaces; i++) {
599 const struct sockaddr_storage *ifss =
600 iface_n_sockaddr_storage(i);
605 DEBUG(0,("open_sockets_smbd: "
606 "interface %d has NULL IP address !\n",
612 next_token_talloc(talloc_tos(),&ptr, &tok, " \t,");) {
613 unsigned port = atoi(tok);
614 if (port == 0 || port > 0xffff) {
618 if (!smbd_open_one_socket(parent, ifss, port)) {
624 /* Just bind to 0.0.0.0 - accept connections
629 const char *sock_addr = lp_socket_address();
631 const char *sock_ptr;
633 if (strequal(sock_addr, "0.0.0.0") ||
634 strequal(sock_addr, "::")) {
636 sock_addr = "::,0.0.0.0";
638 sock_addr = "0.0.0.0";
642 for (sock_ptr=sock_addr;
643 next_token_talloc(talloc_tos(), &sock_ptr, &sock_tok, " \t,"); ) {
644 for (ptr=ports; next_token_talloc(talloc_tos(), &ptr, &tok, " \t,"); ) {
645 struct sockaddr_storage ss;
647 unsigned port = atoi(tok);
648 if (port == 0 || port > 0xffff) {
652 /* Keep the first port for mDNS service
659 /* open an incoming socket */
660 if (!interpret_string_addr(&ss, sock_tok,
661 AI_NUMERICHOST|AI_PASSIVE)) {
665 if (!smbd_open_one_socket(parent, &ss, port)) {
672 if (parent->sockets == NULL) {
673 DEBUG(0,("open_sockets_smbd: No "
674 "sockets available to bind to.\n"));
678 /* Setup the main smbd so that we can get messages. Note that
679 do this after starting listening. This is needed as when in
680 clustered mode, ctdb won't allow us to start doing database
681 operations until it has gone thru a full startup, which
682 includes checking to see that smbd is listening. */
684 if (!serverid_register(procid_self(),
685 FLAG_MSG_GENERAL|FLAG_MSG_SMBD
687 DEBUG(0, ("open_sockets_smbd: Failed to register "
688 "myself in serverid.tdb\n"));
692 /* Listen to messages */
694 messaging_register(smbd_messaging_context(), NULL,
695 MSG_SMB_SAM_SYNC, msg_sam_sync);
696 messaging_register(smbd_messaging_context(), NULL,
697 MSG_SHUTDOWN, msg_exit_server);
698 messaging_register(smbd_messaging_context(), NULL,
699 MSG_SMB_FILE_RENAME, msg_file_was_renamed);
700 messaging_register(smbd_messaging_context(), NULL,
701 MSG_SMB_CONF_UPDATED, smb_conf_updated);
702 messaging_register(smbd_messaging_context(), NULL,
703 MSG_SMB_STAT_CACHE_DELETE, smb_stat_cache_delete);
704 messaging_register(smbd_messaging_context(), NULL,
705 MSG_DEBUG, smbd_msg_debug);
706 brl_register_msgs(smbd_messaging_context());
708 #ifdef CLUSTER_SUPPORT
709 if (lp_clustering()) {
710 ctdbd_register_reconfigure(
711 messaging_ctdbd_connection(procid_self()));
716 messaging_register(smbd_messaging_context(), NULL,
717 MSG_SMB_INJECT_FAULT, msg_inject_fault);
721 #ifdef WITH_DNSSD_SUPPORT
722 smbd_setup_mdns_registration(smbd_event_context(),
725 #ifdef WITH_AVAHI_SUPPORT
728 avahi_conn = avahi_start_register(
729 smbd_event_context(), smbd_event_context(), dns_port);
730 if (avahi_conn == NULL) {
731 DEBUG(10, ("avahi_start_register failed\n"));
739 static void smbd_parent_loop(struct smbd_parent_context *parent)
741 /* now accept incoming connections - forking a new process
742 for each incoming connection */
743 DEBUG(2,("waiting for connections\n"));
746 TALLOC_CTX *frame = talloc_stackframe();
748 ret = tevent_loop_once(smbd_event_context());
750 exit_server_cleanly("tevent_loop_once() error");
756 /* NOTREACHED return True; */
760 /****************************************************************************
761 Initialise connect, service and file structs.
762 ****************************************************************************/
764 static bool init_structs(void )
767 * Set the machine NETBIOS name if not already
768 * set from the config file.
782 static bool spoolss_init_cb(void *ptr)
784 struct messaging_context *msg_ctx = talloc_get_type_abort(
785 ptr, struct messaging_context);
786 return nt_printing_tdb_migrate(msg_ctx);
789 /****************************************************************************
791 ****************************************************************************/
793 /* Declare prototype for build_options() to avoid having to run it through
794 mkproto.h. Mixing $(builddir) and $(srcdir) source files in the current
795 prototype generation system is too complicated. */
797 extern void build_options(bool screen);
799 int main(int argc,const char *argv[])
801 /* shall I run as a daemon */
802 bool is_daemon = false;
803 bool interactive = false;
805 bool no_process_group = false;
806 bool log_stdout = false;
808 char *profile_level = NULL;
811 bool print_build_options = False;
816 OPT_NO_PROCESS_GROUP,
819 struct poptOption long_options[] = {
821 {"daemon", 'D', POPT_ARG_NONE, NULL, OPT_DAEMON, "Become a daemon (default)" },
822 {"interactive", 'i', POPT_ARG_NONE, NULL, OPT_INTERACTIVE, "Run interactive (not a daemon)"},
823 {"foreground", 'F', POPT_ARG_NONE, NULL, OPT_FORK, "Run daemon in foreground (for daemontools, etc.)" },
824 {"no-process-group", '\0', POPT_ARG_NONE, NULL, OPT_NO_PROCESS_GROUP, "Don't create a new process group" },
825 {"log-stdout", 'S', POPT_ARG_NONE, NULL, OPT_LOG_STDOUT, "Log to stdout" },
826 {"build-options", 'b', POPT_ARG_NONE, NULL, 'b', "Print build options" },
827 {"port", 'p', POPT_ARG_STRING, &ports, 0, "Listen on the specified ports"},
828 {"profiling-level", 'P', POPT_ARG_STRING, &profile_level, 0, "Set profiling level","PROFILE_LEVEL"},
830 POPT_COMMON_DYNCONFIG
833 struct smbd_parent_context *parent = NULL;
834 TALLOC_CTX *frame = talloc_stackframe(); /* Setup tos. */
837 struct rpc_srv_callbacks spoolss_cb;
839 /* Initialize the event context, it will panic on error */
840 smbd_event_context();
846 #ifdef HAVE_SET_AUTH_PARAMETERS
847 set_auth_parameters(argc,argv);
850 pc = poptGetContext("smbd", argc, argv, long_options, 0);
851 while((opt = poptGetNextOpt(pc)) != -1) {
856 case OPT_INTERACTIVE:
862 case OPT_NO_PROCESS_GROUP:
863 no_process_group = true;
869 print_build_options = True;
872 d_fprintf(stderr, "\nInvalid option %s: %s\n\n",
873 poptBadOption(pc, 0), poptStrerror(opt));
874 poptPrintUsage(pc, stderr, 0);
885 setup_logging(argv[0],log_stdout);
887 if (print_build_options) {
888 build_options(True); /* Display output to screen as well as debug */
895 /* needed for SecureWare on SCO */
899 set_remote_machine_name("smbd", False);
901 if (interactive && (DEBUGLEVEL >= 9)) {
902 talloc_enable_leak_report();
905 if (log_stdout && Fork) {
906 DEBUG(0,("ERROR: Can't log to stdout (-S) unless daemon is in foreground (-F) or interactive (-i)\n"));
910 /* we want to re-seed early to prevent time delays causing
911 client problems at a later date. (tridge) */
912 generate_random_buffer(NULL, 0);
914 /* get initial effective uid and gid */
917 /* make absolutely sure we run as root - to handle cases where people
918 are crazy enough to have it setuid */
919 gain_root_privilege();
920 gain_root_group_privilege();
922 fault_setup((void (*)(void *))exit_server_fault);
923 dump_core_setup("smbd");
925 /* we are never interested in SIGPIPE */
926 BlockSignals(True,SIGPIPE);
929 /* we are never interested in SIGFPE */
930 BlockSignals(True,SIGFPE);
934 /* We are no longer interested in USR2 */
935 BlockSignals(True,SIGUSR2);
938 /* POSIX demands that signals are inherited. If the invoking process has
939 * these signals masked, we will have problems, as we won't recieve them. */
940 BlockSignals(False, SIGHUP);
941 BlockSignals(False, SIGUSR1);
942 BlockSignals(False, SIGTERM);
944 /* Ensure we leave no zombies until we
945 * correctly set up child handling below. */
949 /* we want total control over the permissions on created files,
950 so set our umask to 0 */
955 DEBUG(0,("smbd version %s started.\n", samba_version_string()));
956 DEBUGADD(0,("%s\n", COPYRIGHT_STARTUP_MESSAGE));
958 DEBUG(2,("uid=%d gid=%d euid=%d egid=%d\n",
959 (int)getuid(),(int)getgid(),(int)geteuid(),(int)getegid()));
961 /* Output the build options to the debug log */
962 build_options(False);
964 if (sizeof(uint16) < 2 || sizeof(uint32) < 4) {
965 DEBUG(0,("ERROR: Samba is not configured correctly for the word size on your machine\n"));
969 if (!lp_load_initial_only(get_dyn_CONFIGFILE())) {
970 DEBUG(0, ("error opening config file\n"));
974 /* Init the security context and global current_user */
977 if (smbd_messaging_context() == NULL)
981 * Reloading of the printers will not work here as we don't have a
982 * server info and rpc services set up. It will be called later.
984 if (!reload_services(smbd_messaging_context(), False)) {
988 /* ...NOTE... Log files are working from this point! */
990 DEBUG(3,("loaded services\n"));
995 if (!profile_setup(smbd_messaging_context(), False)) {
996 DEBUG(0,("ERROR: failed to setup profiling\n"));
999 if (profile_level != NULL) {
1000 int pl = atoi(profile_level);
1001 struct server_id src;
1003 DEBUG(1, ("setting profiling level: %s\n",profile_level));
1005 set_profile_level(pl, src);
1009 if (!is_daemon && !is_a_socket(0)) {
1011 DEBUG(0,("standard input is not a socket, assuming -D option\n"));
1014 * Setting is_daemon here prevents us from eventually calling
1015 * the open_sockets_inetd()
1021 if (is_daemon && !interactive) {
1022 DEBUG( 3, ( "Becoming a daemon.\n" ) );
1023 become_daemon(Fork, no_process_group, log_stdout);
1026 generate_random_buffer((uint8_t *)&unique_id, sizeof(unique_id));
1027 set_my_unique_id(unique_id);
1031 * If we're interactive we want to set our own process group for
1032 * signal management.
1034 if (interactive && !no_process_group)
1035 setpgid( (pid_t)0, (pid_t)0);
1038 if (!directory_exist(lp_lockdir()))
1039 mkdir(lp_lockdir(), 0755);
1042 pidfile_create("smbd");
1044 status = reinit_after_fork(smbd_messaging_context(),
1045 smbd_event_context(),
1046 procid_self(), false);
1047 if (!NT_STATUS_IS_OK(status)) {
1048 DEBUG(0,("reinit_after_fork() failed\n"));
1052 smbd_server_conn->msg_ctx = smbd_messaging_context();
1054 smbd_setup_sig_term_handler();
1055 smbd_setup_sig_hup_handler(smbd_event_context(),
1056 smbd_server_conn->msg_ctx);
1058 /* Setup all the TDB's - including CLEAR_IF_FIRST tdb's. */
1060 if (smbd_memcache() == NULL) {
1064 memcache_set_global(smbd_memcache());
1066 /* Initialise the password backed before the global_sam_sid
1067 to ensure that we fetch from ldap before we make a domain sid up */
1069 if(!initialize_password_db(False, smbd_event_context()))
1072 if (!secrets_init()) {
1073 DEBUG(0, ("ERROR: smbd can not open secrets.tdb\n"));
1077 if (lp_server_role() == ROLE_DOMAIN_BDC || lp_server_role() == ROLE_DOMAIN_PDC) {
1078 if (!open_schannel_session_store(NULL, lp_private_dir())) {
1079 DEBUG(0,("ERROR: Samba cannot open schannel store for secured NETLOGON operations.\n"));
1084 if(!get_global_sam_sid()) {
1085 DEBUG(0,("ERROR: Samba cannot create a SAM SID.\n"));
1089 if (!sessionid_init()) {
1093 if (!connections_init(True))
1096 if (!locking_init())
1099 if (!messaging_tdb_parent_init()) {
1103 if (!notify_internal_parent_init()) {
1107 if (!serverid_parent_init()) {
1111 if (!W_ERROR_IS_OK(registry_init_full()))
1114 if (!print_backend_init(smbd_messaging_context()))
1118 if (!init_svcctl_db())
1122 /* Open the share_info.tdb here, so we don't have to open
1123 after the fork on every single connection. This is a small
1124 performance improvment and reduces the total number of system
1126 if (!share_info_db_init()) {
1127 DEBUG(0,("ERROR: failed to load share info db.\n"));
1131 if (!init_system_info()) {
1132 DEBUG(0,("ERROR: failed to setup system user info.\n"));
1136 if (!init_guest_info()) {
1137 DEBUG(0,("ERROR: failed to setup guest info.\n"));
1142 * Initialize spoolss with an init function to convert printers first.
1143 * static_init_rpc will try to initialize the spoolss server too but you
1144 * can't register it twice.
1146 spoolss_cb.init = spoolss_init_cb;
1147 spoolss_cb.shutdown = NULL;
1148 spoolss_cb.private_data = smbd_server_conn->msg_ctx;
1150 /* Spoolss depends on a winreg pipe, so start it first. */
1151 if (!NT_STATUS_IS_OK(rpc_winreg_init(NULL))) {
1155 if (!NT_STATUS_IS_OK(rpc_spoolss_init(&spoolss_cb))) {
1161 /* Publish nt printers, this requires a working winreg pipe */
1162 reload_printers(smbd_messaging_context());
1164 /* only start the background queue daemon if we are
1165 running as a daemon -- bad things will happen if
1166 smbd is launched via inetd and we fork a copy of
1169 if (is_daemon && !interactive
1170 && lp_parm_bool(-1, "smbd", "backgroundqueue", true)) {
1171 start_background_queue(smbd_event_context(),
1172 smbd_messaging_context());
1179 /* Started from inetd. fd 0 is the socket. */
1180 /* We will abort gracefully when the client or remote system
1182 smbd_set_server_fd(dup(0));
1184 /* close our standard file descriptors */
1185 close_low_fds(False); /* Don't close stderr */
1192 smbd_setup_sig_chld_handler();
1194 smbd_process(smbd_server_conn);
1196 exit_server_cleanly(NULL);
1200 parent = talloc_zero(smbd_event_context(), struct smbd_parent_context);
1202 exit_server("talloc(struct smbd_parent_context) failed");
1204 parent->interactive = interactive;
1206 if (!open_sockets_smbd(parent, ports))
1207 exit_server("open_sockets_smbd() failed");
1210 /* make sure we always have a valid stackframe */
1211 frame = talloc_stackframe();
1213 smbd_parent_loop(parent);
1215 exit_server_cleanly(NULL);