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"
45 extern void start_epmd(struct tevent_context *ev_ctx,
46 struct messaging_context *msg_ctx);
48 extern void start_spoolssd(struct event_context *ev_ctx,
49 struct messaging_context *msg_ctx);
52 extern int dcelogin_atmost_once;
55 static void smbd_set_server_fd(int fd)
57 struct smbd_server_connection *sconn = smbd_server_conn;
58 char addr[INET6_ADDRSTRLEN];
64 * Initialize sconn->client_id: If we can't find the client's
65 * name, default to its address.
68 client_addr(fd, sconn->client_id.addr, sizeof(sconn->client_id.addr));
70 name = client_name(sconn->sock);
71 if (strcmp(name, "UNKNOWN") != 0) {
72 name = talloc_strdup(sconn, name);
76 sconn->client_id.name =
77 (name != NULL) ? name : sconn->client_id.addr;
79 sub_set_socket_ids(sconn->client_id.addr, sconn->client_id.name,
80 client_socket_addr(sconn->sock, addr,
84 struct event_context *smbd_event_context(void)
86 return server_event_context();
89 /*******************************************************************
90 What to do when smb.conf is updated.
91 ********************************************************************/
93 static void smb_conf_updated(struct messaging_context *msg,
96 struct server_id server_id,
99 struct tevent_context *ev_ctx =
100 talloc_get_type_abort(private_data, struct tevent_context);
102 DEBUG(10,("smb_conf_updated: Got message saying smb.conf was "
103 "updated. Reloading.\n"));
104 change_to_root_user();
105 reload_services(msg, smbd_server_conn->sock, False);
107 pcap_cache_reload(ev_ctx, msg,
108 &reload_pcap_change_notify);
112 /*******************************************************************
113 What to do when printcap is updated.
114 ********************************************************************/
116 static void smb_pcap_updated(struct messaging_context *msg,
119 struct server_id server_id,
122 struct tevent_context *ev_ctx =
123 talloc_get_type_abort(private_data, struct tevent_context);
125 DEBUG(10,("Got message saying pcap was updated. Reloading.\n"));
126 change_to_root_user();
127 reload_printers(ev_ctx, msg);
130 /*******************************************************************
131 Delete a statcache entry.
132 ********************************************************************/
134 static void smb_stat_cache_delete(struct messaging_context *msg,
137 struct server_id server_id,
140 const char *name = (const char *)data->data;
141 DEBUG(10,("smb_stat_cache_delete: delete name %s\n", name));
142 stat_cache_delete(name);
145 /****************************************************************************
146 Send a SIGTERM to our process group.
147 *****************************************************************************/
149 static void killkids(void)
151 if(am_parent) kill(0,SIGTERM);
154 /****************************************************************************
155 Process a sam sync message - not sure whether to do this here or
157 ****************************************************************************/
159 static void msg_sam_sync(struct messaging_context *msg,
162 struct server_id server_id,
165 DEBUG(10, ("** sam sync message received, ignoring\n"));
168 static void msg_exit_server(struct messaging_context *msg,
171 struct server_id server_id,
174 DEBUG(3, ("got a SHUTDOWN message\n"));
175 exit_server_cleanly(NULL);
179 static void msg_inject_fault(struct messaging_context *msg,
182 struct server_id src,
187 if (data->length != sizeof(sig)) {
188 DEBUG(0, ("Process %s sent bogus signal injection request\n",
189 procid_str_static(&src)));
193 sig = *(int *)data->data;
195 exit_server("internal error injected");
200 DEBUG(0, ("Process %s requested injection of signal %d (%s)\n",
201 procid_str_static(&src), sig, strsignal(sig)));
203 DEBUG(0, ("Process %s requested injection of signal %d\n",
204 procid_str_static(&src), sig));
207 kill(sys_getpid(), sig);
209 #endif /* DEVELOPER */
212 * Parent smbd process sets its own debug level first and then
213 * sends a message to all the smbd children to adjust their debug
214 * level to that of the parent.
217 static void smbd_msg_debug(struct messaging_context *msg_ctx,
220 struct server_id server_id,
223 struct child_pid *child;
225 debug_message(msg_ctx, private_data, MSG_DEBUG, server_id, data);
227 for (child = children; child != NULL; child = child->next) {
228 messaging_send_buf(msg_ctx, pid_to_procid(child->pid),
231 strlen((char *) data->data) + 1);
235 static void add_child_pid(pid_t pid)
237 struct child_pid *child;
239 child = SMB_MALLOC_P(struct child_pid);
241 DEBUG(0, ("Could not add child struct -- malloc failed\n"));
245 DLIST_ADD(children, child);
250 at most every smbd:cleanuptime seconds (default 20), we scan the BRL
251 and locking database for entries to cleanup. As a side effect this
252 also cleans up dead entries in the connections database (due to the
253 traversal in message_send_all()
255 Using a timer for this prevents a flood of traversals when a large
256 number of clients disconnect at the same time (perhaps due to a
260 static void cleanup_timeout_fn(struct event_context *event_ctx,
261 struct timed_event *te,
265 struct timed_event **cleanup_te = (struct timed_event **)private_data;
267 DEBUG(1,("Cleaning up brl and lock database after unclean shutdown\n"));
268 message_send_all(smbd_messaging_context(), MSG_SMB_UNLOCK, NULL, 0, NULL);
269 messaging_send_buf(smbd_messaging_context(), procid_self(),
270 MSG_SMB_BRL_VALIDATE, NULL, 0);
271 /* mark the cleanup as having been done */
272 (*cleanup_te) = NULL;
275 static void remove_child_pid(pid_t pid, bool unclean_shutdown)
277 struct child_pid *child;
278 static struct timed_event *cleanup_te;
279 struct server_id child_id;
281 if (unclean_shutdown) {
282 /* a child terminated uncleanly so tickle all
283 processes to see if they can grab any of the
286 DEBUG(3,(__location__ " Unclean shutdown of pid %u\n",
289 /* call the cleanup timer, but not too often */
290 int cleanup_time = lp_parm_int(-1, "smbd", "cleanuptime", 20);
291 cleanup_te = event_add_timed(smbd_event_context(), NULL,
292 timeval_current_ofs(cleanup_time, 0),
295 DEBUG(1,("Scheduled cleanup of brl and lock database after unclean shutdown\n"));
299 child_id = procid_self(); /* Just initialize pid and potentially vnn */
302 if (!serverid_deregister(child_id)) {
303 DEBUG(1, ("Could not remove pid %d from serverid.tdb\n",
307 for (child = children; child != NULL; child = child->next) {
308 if (child->pid == pid) {
309 struct child_pid *tmp = child;
310 DLIST_REMOVE(children, child);
317 /* not all forked child processes are added to the children list */
318 DEBUG(1, ("Could not find child %d -- ignoring\n", (int)pid));
321 /****************************************************************************
322 Have we reached the process limit ?
323 ****************************************************************************/
325 static bool allowable_number_of_smbd_processes(void)
327 int max_processes = lp_max_smbd_processes();
332 return num_children < max_processes;
335 static void smbd_sig_chld_handler(struct tevent_context *ev,
336 struct tevent_signal *se,
345 while ((pid = sys_waitpid(-1, &status, WNOHANG)) > 0) {
346 bool unclean_shutdown = False;
348 /* If the child terminated normally, assume
349 it was an unclean shutdown unless the
352 if (WIFEXITED(status)) {
353 unclean_shutdown = WEXITSTATUS(status);
355 /* If the child terminated due to a signal
356 we always assume it was unclean.
358 if (WIFSIGNALED(status)) {
359 unclean_shutdown = True;
361 remove_child_pid(pid, unclean_shutdown);
365 static void smbd_setup_sig_chld_handler(void)
367 struct tevent_signal *se;
369 se = tevent_add_signal(smbd_event_context(),
370 smbd_event_context(),
372 smbd_sig_chld_handler,
375 exit_server("failed to setup SIGCHLD handler");
379 struct smbd_open_socket;
381 struct smbd_parent_context {
384 /* the list of listening sockets */
385 struct smbd_open_socket *sockets;
388 struct smbd_open_socket {
389 struct smbd_open_socket *prev, *next;
390 struct smbd_parent_context *parent;
392 struct tevent_fd *fde;
395 static void smbd_open_socket_close_fn(struct tevent_context *ev,
396 struct tevent_fd *fde,
400 /* this might be the socket_wrapper swrap_close() */
404 static void smbd_accept_connection(struct tevent_context *ev,
405 struct tevent_fd *fde,
409 struct smbd_open_socket *s = talloc_get_type_abort(private_data,
410 struct smbd_open_socket);
411 struct sockaddr_storage addr;
412 socklen_t in_addrlen = sizeof(addr);
417 fd = accept(s->fd, (struct sockaddr *)(void *)&addr,&in_addrlen);
418 smbd_set_server_fd(fd);
420 if (fd == -1 && errno == EINTR)
424 DEBUG(0,("open_sockets_smbd: accept: %s\n",
429 if (s->parent->interactive) {
430 smbd_process(smbd_server_conn);
431 exit_server_cleanly("end of interactive mode");
435 if (!allowable_number_of_smbd_processes()) {
437 smbd_set_server_fd(-1);
442 * Generate a unique id in the parent process so that we use
443 * the global random state in the parent.
445 generate_random_buffer((uint8_t *)&unique_id, sizeof(unique_id));
449 NTSTATUS status = NT_STATUS_OK;
454 set_my_unique_id(unique_id);
456 /* Stop zombies, the parent explicitly handles
457 * them, counting worker smbds. */
460 /* close our standard file
462 close_low_fds(False);
465 * Can't use TALLOC_FREE here. Nulling out the argument to it
466 * would overwrite memory we've just freed.
468 talloc_free(s->parent);
471 status = reinit_after_fork(smbd_messaging_context(),
472 smbd_event_context(), procid_self(),
474 if (!NT_STATUS_IS_OK(status)) {
475 if (NT_STATUS_EQUAL(status,
476 NT_STATUS_TOO_MANY_OPENED_FILES)) {
477 DEBUG(0,("child process cannot initialize "
478 "because too many files are open\n"));
481 DEBUG(0,("reinit_after_fork() failed\n"));
482 smb_panic("reinit_after_fork() failed");
485 smbd_setup_sig_term_handler();
486 smbd_setup_sig_hup_handler(server_event_context(),
487 server_messaging_context());
489 if (!serverid_register(procid_self(),
490 FLAG_MSG_GENERAL|FLAG_MSG_SMBD
492 |FLAG_MSG_PRINT_GENERAL)) {
493 exit_server_cleanly("Could not register myself in "
497 smbd_process(smbd_server_conn);
499 exit_server_cleanly("end of child");
504 DEBUG(0,("smbd_accept_connection: sys_fork() failed: %s\n",
508 /* The parent doesn't need this socket */
511 /* Sun May 6 18:56:14 2001 ackley@cs.unm.edu:
512 Clear the closed fd info out of server_fd --
513 and more importantly, out of client_fd in
514 util_sock.c, to avoid a possible
515 getpeername failure if we reopen the logs
516 and use %I in the filename.
519 smbd_set_server_fd(-1);
525 /* Force parent to check log size after
526 * spawning child. Fix from
527 * klausr@ITAP.Physik.Uni-Stuttgart.De. The
528 * parent smbd will log to logserver.smb. It
529 * writes only two messages for each child
530 * started/finished. But each child writes,
531 * say, 50 messages also in logserver.smb,
532 * begining with the debug_count of the
533 * parent, before the child opens its own log
534 * file logserver.client. In a worst case
535 * scenario the size of logserver.smb would be
536 * checked after about 50*50=2500 messages
539 force_check_log_size();
542 static bool smbd_open_one_socket(struct smbd_parent_context *parent,
543 const struct sockaddr_storage *ifss,
546 struct smbd_open_socket *s;
548 s = talloc(parent, struct smbd_open_socket);
554 s->fd = open_socket_in(SOCK_STREAM,
556 parent->sockets == NULL ? 0 : 2,
560 DEBUG(0,("smbd_open_once_socket: open_socket_in: "
561 "%s\n", strerror(errno)));
564 * We ignore an error here, as we've done before
569 /* ready to listen */
570 set_socket_options(s->fd, "SO_KEEPALIVE");
571 set_socket_options(s->fd, lp_socket_options());
573 /* Set server socket to
574 * non-blocking for the accept. */
575 set_blocking(s->fd, False);
577 if (listen(s->fd, SMBD_LISTEN_BACKLOG) == -1) {
578 DEBUG(0,("open_sockets_smbd: listen: "
579 "%s\n", strerror(errno)));
585 s->fde = tevent_add_fd(smbd_event_context(),
587 s->fd, TEVENT_FD_READ,
588 smbd_accept_connection,
591 DEBUG(0,("open_sockets_smbd: "
592 "tevent_add_fd: %s\n",
598 tevent_fd_set_close_fn(s->fde, smbd_open_socket_close_fn);
600 DLIST_ADD_END(parent->sockets, s, struct smbd_open_socket *);
605 static bool smbd_parent_housekeeping(const struct timeval *now, void *private_data)
607 time_t printcap_cache_time = (time_t)lp_printcap_cache_time();
608 time_t t = time_mono(NULL);
610 DEBUG(5, ("parent housekeeping\n"));
612 /* if periodic printcap rescan is enabled, see if it's time to reload */
613 if ((printcap_cache_time != 0)
614 && (t >= (last_printer_reload_time + printcap_cache_time))) {
615 DEBUG( 3,( "Printcap cache time expired.\n"));
616 pcap_cache_reload(server_event_context(),
617 smbd_messaging_context(),
618 &reload_pcap_change_notify);
619 last_printer_reload_time = t;
625 /****************************************************************************
626 Open the socket communication.
627 ****************************************************************************/
629 static bool open_sockets_smbd(struct smbd_parent_context *parent,
630 struct messaging_context *msg_ctx,
631 const char *smb_ports)
633 int num_interfaces = iface_count();
636 unsigned dns_port = 0;
643 smbd_setup_sig_chld_handler();
645 /* use a reasonable default set of ports - listing on 445 and 139 */
647 ports = lp_smb_ports();
648 if (!ports || !*ports) {
649 ports = talloc_strdup(talloc_tos(), SMB_PORTS);
651 ports = talloc_strdup(talloc_tos(), ports);
654 ports = talloc_strdup(talloc_tos(), smb_ports);
657 if (lp_interfaces() && lp_bind_interfaces_only()) {
658 /* We have been given an interfaces line, and been
659 told to only bind to those interfaces. Create a
660 socket per interface and bind to only these.
663 /* Now open a listen socket for each of the
665 for(i = 0; i < num_interfaces; i++) {
666 const struct sockaddr_storage *ifss =
667 iface_n_sockaddr_storage(i);
672 DEBUG(0,("open_sockets_smbd: "
673 "interface %d has NULL IP address !\n",
679 next_token_talloc(talloc_tos(),&ptr, &tok, " \t,");) {
680 unsigned port = atoi(tok);
681 if (port == 0 || port > 0xffff) {
685 if (!smbd_open_one_socket(parent, ifss, port)) {
691 /* Just bind to 0.0.0.0 - accept connections
696 const char *sock_addr = lp_socket_address();
698 const char *sock_ptr;
700 if (strequal(sock_addr, "0.0.0.0") ||
701 strequal(sock_addr, "::")) {
703 sock_addr = "::,0.0.0.0";
705 sock_addr = "0.0.0.0";
709 for (sock_ptr=sock_addr;
710 next_token_talloc(talloc_tos(), &sock_ptr, &sock_tok, " \t,"); ) {
711 for (ptr=ports; next_token_talloc(talloc_tos(), &ptr, &tok, " \t,"); ) {
712 struct sockaddr_storage ss;
714 unsigned port = atoi(tok);
715 if (port == 0 || port > 0xffff) {
719 /* Keep the first port for mDNS service
726 /* open an incoming socket */
727 if (!interpret_string_addr(&ss, sock_tok,
728 AI_NUMERICHOST|AI_PASSIVE)) {
732 if (!smbd_open_one_socket(parent, &ss, port)) {
739 if (parent->sockets == NULL) {
740 DEBUG(0,("open_sockets_smbd: No "
741 "sockets available to bind to.\n"));
745 /* Setup the main smbd so that we can get messages. Note that
746 do this after starting listening. This is needed as when in
747 clustered mode, ctdb won't allow us to start doing database
748 operations until it has gone thru a full startup, which
749 includes checking to see that smbd is listening. */
751 if (!serverid_register(procid_self(),
752 FLAG_MSG_GENERAL|FLAG_MSG_SMBD
754 DEBUG(0, ("open_sockets_smbd: Failed to register "
755 "myself in serverid.tdb\n"));
759 if (!(event_add_idle(smbd_event_context(), NULL,
760 timeval_set(SMBD_HOUSEKEEPING_INTERVAL, 0),
761 "parent_housekeeping", smbd_parent_housekeeping,
763 DEBUG(0, ("Could not add parent_housekeeping event\n"));
767 /* Listen to messages */
769 messaging_register(msg_ctx, NULL, MSG_SMB_SAM_SYNC, msg_sam_sync);
770 messaging_register(msg_ctx, NULL, MSG_SHUTDOWN, msg_exit_server);
771 messaging_register(msg_ctx, NULL, MSG_SMB_FILE_RENAME,
772 msg_file_was_renamed);
773 messaging_register(msg_ctx, server_event_context(), MSG_SMB_CONF_UPDATED,
775 messaging_register(msg_ctx, NULL, MSG_SMB_STAT_CACHE_DELETE,
776 smb_stat_cache_delete);
777 messaging_register(msg_ctx, NULL, MSG_DEBUG, smbd_msg_debug);
778 messaging_register(msg_ctx, server_event_context(), MSG_PRINTER_PCAP,
780 brl_register_msgs(msg_ctx);
782 msg_idmap_register_msgs(msg_ctx);
784 #ifdef CLUSTER_SUPPORT
785 if (lp_clustering()) {
786 ctdbd_register_reconfigure(messaging_ctdbd_connection());
791 messaging_register(msg_ctx, NULL, MSG_SMB_INJECT_FAULT,
795 if (lp_multicast_dns_register() && (dns_port != 0)) {
796 #ifdef WITH_DNSSD_SUPPORT
797 smbd_setup_mdns_registration(smbd_event_context(),
800 #ifdef WITH_AVAHI_SUPPORT
803 avahi_conn = avahi_start_register(
804 smbd_event_context(), smbd_event_context(), dns_port);
805 if (avahi_conn == NULL) {
806 DEBUG(10, ("avahi_start_register failed\n"));
814 static void smbd_parent_loop(struct smbd_parent_context *parent)
816 /* now accept incoming connections - forking a new process
817 for each incoming connection */
818 DEBUG(2,("waiting for connections\n"));
821 TALLOC_CTX *frame = talloc_stackframe();
823 ret = tevent_loop_once(smbd_event_context());
825 exit_server_cleanly("tevent_loop_once() error");
831 /* NOTREACHED return True; */
835 /****************************************************************************
836 Initialise connect, service and file structs.
837 ****************************************************************************/
839 static bool init_structs(void )
842 * Set the machine NETBIOS name if not already
843 * set from the config file.
855 /****************************************************************************
857 ****************************************************************************/
859 /* Declare prototype for build_options() to avoid having to run it through
860 mkproto.h. Mixing $(builddir) and $(srcdir) source files in the current
861 prototype generation system is too complicated. */
863 extern void build_options(bool screen);
865 int main(int argc,const char *argv[])
867 /* shall I run as a daemon */
868 bool is_daemon = false;
869 bool interactive = false;
871 bool no_process_group = false;
872 bool log_stdout = false;
874 char *profile_level = NULL;
877 bool print_build_options = False;
882 OPT_NO_PROCESS_GROUP,
885 struct poptOption long_options[] = {
887 {"daemon", 'D', POPT_ARG_NONE, NULL, OPT_DAEMON, "Become a daemon (default)" },
888 {"interactive", 'i', POPT_ARG_NONE, NULL, OPT_INTERACTIVE, "Run interactive (not a daemon)"},
889 {"foreground", 'F', POPT_ARG_NONE, NULL, OPT_FORK, "Run daemon in foreground (for daemontools, etc.)" },
890 {"no-process-group", '\0', POPT_ARG_NONE, NULL, OPT_NO_PROCESS_GROUP, "Don't create a new process group" },
891 {"log-stdout", 'S', POPT_ARG_NONE, NULL, OPT_LOG_STDOUT, "Log to stdout" },
892 {"build-options", 'b', POPT_ARG_NONE, NULL, 'b', "Print build options" },
893 {"port", 'p', POPT_ARG_STRING, &ports, 0, "Listen on the specified ports"},
894 {"profiling-level", 'P', POPT_ARG_STRING, &profile_level, 0, "Set profiling level","PROFILE_LEVEL"},
896 POPT_COMMON_DYNCONFIG
899 struct smbd_parent_context *parent = NULL;
905 * Do this before any other talloc operation
907 talloc_enable_null_tracking();
908 frame = talloc_stackframe();
912 /* Initialize the event context, it will panic on error */
913 smbd_event_context();
919 #ifdef HAVE_SET_AUTH_PARAMETERS
920 set_auth_parameters(argc,argv);
923 pc = poptGetContext("smbd", argc, argv, long_options, 0);
924 while((opt = poptGetNextOpt(pc)) != -1) {
929 case OPT_INTERACTIVE:
935 case OPT_NO_PROCESS_GROUP:
936 no_process_group = true;
942 print_build_options = True;
945 d_fprintf(stderr, "\nInvalid option %s: %s\n\n",
946 poptBadOption(pc, 0), poptStrerror(opt));
947 poptPrintUsage(pc, stderr, 0);
959 setup_logging(argv[0], DEBUG_STDOUT);
961 setup_logging(argv[0], DEBUG_FILE);
964 if (print_build_options) {
965 build_options(True); /* Display output to screen as well as debug */
970 /* needed for SecureWare on SCO */
974 set_remote_machine_name("smbd", False);
976 if (interactive && (DEBUGLEVEL >= 9)) {
977 talloc_enable_leak_report();
980 if (log_stdout && Fork) {
981 DEBUG(0,("ERROR: Can't log to stdout (-S) unless daemon is in foreground (-F) or interactive (-i)\n"));
985 /* we want to re-seed early to prevent time delays causing
986 client problems at a later date. (tridge) */
987 generate_random_buffer(NULL, 0);
989 /* get initial effective uid and gid */
992 /* make absolutely sure we run as root - to handle cases where people
993 are crazy enough to have it setuid */
994 gain_root_privilege();
995 gain_root_group_privilege();
998 dump_core_setup("smbd", lp_logfile());
1000 /* we are never interested in SIGPIPE */
1001 BlockSignals(True,SIGPIPE);
1004 /* we are never interested in SIGFPE */
1005 BlockSignals(True,SIGFPE);
1008 #if defined(SIGUSR2)
1009 /* We are no longer interested in USR2 */
1010 BlockSignals(True,SIGUSR2);
1013 /* POSIX demands that signals are inherited. If the invoking process has
1014 * these signals masked, we will have problems, as we won't recieve them. */
1015 BlockSignals(False, SIGHUP);
1016 BlockSignals(False, SIGUSR1);
1017 BlockSignals(False, SIGTERM);
1019 /* Ensure we leave no zombies until we
1020 * correctly set up child handling below. */
1024 /* we want total control over the permissions on created files,
1025 so set our umask to 0 */
1030 DEBUG(0,("smbd version %s started.\n", samba_version_string()));
1031 DEBUGADD(0,("%s\n", COPYRIGHT_STARTUP_MESSAGE));
1033 DEBUG(2,("uid=%d gid=%d euid=%d egid=%d\n",
1034 (int)getuid(),(int)getgid(),(int)geteuid(),(int)getegid()));
1036 /* Output the build options to the debug log */
1037 build_options(False);
1039 if (sizeof(uint16) < 2 || sizeof(uint32) < 4) {
1040 DEBUG(0,("ERROR: Samba is not configured correctly for the word size on your machine\n"));
1044 if (!lp_load_initial_only(get_dyn_CONFIGFILE())) {
1045 DEBUG(0, ("error opening config file '%s'\n", get_dyn_CONFIGFILE()));
1049 /* Init the security context and global current_user */
1052 if (smbd_messaging_context() == NULL)
1056 * Reloading of the printers will not work here as we don't have a
1057 * server info and rpc services set up. It will be called later.
1059 if (!reload_services(smbd_messaging_context(), -1, False)) {
1063 /* ...NOTE... Log files are working from this point! */
1065 DEBUG(3,("loaded services\n"));
1070 if (!profile_setup(smbd_messaging_context(), False)) {
1071 DEBUG(0,("ERROR: failed to setup profiling\n"));
1074 if (profile_level != NULL) {
1075 int pl = atoi(profile_level);
1076 struct server_id src;
1078 DEBUG(1, ("setting profiling level: %s\n",profile_level));
1080 set_profile_level(pl, src);
1084 if (!is_daemon && !is_a_socket(0)) {
1086 DEBUG(0,("standard input is not a socket, assuming -D option\n"));
1089 * Setting is_daemon here prevents us from eventually calling
1090 * the open_sockets_inetd()
1096 if (is_daemon && !interactive) {
1097 DEBUG( 3, ( "Becoming a daemon.\n" ) );
1098 become_daemon(Fork, no_process_group, log_stdout);
1101 generate_random_buffer((uint8_t *)&unique_id, sizeof(unique_id));
1102 set_my_unique_id(unique_id);
1106 * If we're interactive we want to set our own process group for
1107 * signal management.
1109 if (interactive && !no_process_group)
1110 setpgid( (pid_t)0, (pid_t)0);
1113 if (!directory_exist(lp_lockdir()))
1114 mkdir(lp_lockdir(), 0755);
1117 pidfile_create("smbd");
1119 status = reinit_after_fork(smbd_messaging_context(),
1120 smbd_event_context(),
1121 procid_self(), false);
1122 if (!NT_STATUS_IS_OK(status)) {
1123 DEBUG(0,("reinit_after_fork() failed\n"));
1127 smbd_server_conn->msg_ctx = smbd_messaging_context();
1129 smbd_setup_sig_term_handler();
1130 smbd_setup_sig_hup_handler(smbd_event_context(),
1131 smbd_server_conn->msg_ctx);
1133 /* Setup all the TDB's - including CLEAR_IF_FIRST tdb's. */
1135 if (smbd_memcache() == NULL) {
1139 memcache_set_global(smbd_memcache());
1141 /* Initialise the password backed before the global_sam_sid
1142 to ensure that we fetch from ldap before we make a domain sid up */
1144 if(!initialize_password_db(False, smbd_event_context()))
1147 if (!secrets_init()) {
1148 DEBUG(0, ("ERROR: smbd can not open secrets.tdb\n"));
1152 if (lp_server_role() == ROLE_DOMAIN_BDC || lp_server_role() == ROLE_DOMAIN_PDC) {
1153 if (!open_schannel_session_store(NULL, lp_private_dir())) {
1154 DEBUG(0,("ERROR: Samba cannot open schannel store for secured NETLOGON operations.\n"));
1159 if(!get_global_sam_sid()) {
1160 DEBUG(0,("ERROR: Samba cannot create a SAM SID.\n"));
1164 if (!sessionid_init()) {
1168 if (!connections_init(True))
1171 if (!locking_init())
1174 if (!messaging_tdb_parent_init(smbd_event_context())) {
1178 if (!notify_internal_parent_init(smbd_event_context())) {
1182 if (!serverid_parent_init(smbd_event_context())) {
1186 if (!printer_list_parent_init()) {
1190 if (!W_ERROR_IS_OK(registry_init_full()))
1193 if (!print_backend_init(smbd_messaging_context()))
1196 /* Open the share_info.tdb here, so we don't have to open
1197 after the fork on every single connection. This is a small
1198 performance improvment and reduces the total number of system
1200 if (!share_info_db_init()) {
1201 DEBUG(0,("ERROR: failed to load share info db.\n"));
1205 status = init_system_info();
1206 if (!NT_STATUS_IS_OK(status)) {
1207 DEBUG(1, ("ERROR: failed to setup system user info: %s.\n",
1208 nt_errstr(status)));
1212 if (!init_guest_info()) {
1213 DEBUG(0,("ERROR: failed to setup guest info.\n"));
1217 if (!file_init(smbd_server_conn)) {
1218 DEBUG(0, ("ERROR: file_init failed\n"));
1222 if (is_daemon && !interactive) {
1223 const char *rpcsrv_type;
1225 rpcsrv_type = lp_parm_const_string(GLOBAL_SECTION_SNUM,
1226 "rpc_server", "epmapper",
1228 if (StrCaseCmp(rpcsrv_type, "daemon") == 0) {
1229 start_epmd(smbd_event_context(),
1230 smbd_server_conn->msg_ctx);
1234 if (!dcesrv_ep_setup(smbd_event_context(), smbd_server_conn->msg_ctx)) {
1238 /* Publish nt printers, this requires a working winreg pipe */
1239 pcap_cache_reload(server_event_context(), smbd_messaging_context(),
1242 /* only start the background queue daemon if we are
1243 running as a daemon -- bad things will happen if
1244 smbd is launched via inetd and we fork a copy of
1247 if (is_daemon && !interactive
1248 && lp_parm_bool(-1, "smbd", "backgroundqueue", true)) {
1249 start_background_queue(smbd_event_context(),
1250 smbd_messaging_context());
1253 if (is_daemon && !_lp_disable_spoolss()) {
1254 const char *rpcsrv_type;
1256 /* start spoolss daemon */
1257 /* start as a separate daemon only if enabled */
1258 rpcsrv_type = lp_parm_const_string(GLOBAL_SECTION_SNUM,
1259 "rpc_server", "spoolss",
1261 if (StrCaseCmp(rpcsrv_type, "daemon") == 0) {
1262 start_spoolssd(smbd_event_context(),
1263 smbd_messaging_context());
1271 /* Started from inetd. fd 0 is the socket. */
1272 /* We will abort gracefully when the client or remote system
1274 smbd_set_server_fd(dup(0));
1276 /* close our standard file descriptors */
1277 close_low_fds(False); /* Don't close stderr */
1284 smbd_setup_sig_chld_handler();
1286 smbd_process(smbd_server_conn);
1288 exit_server_cleanly(NULL);
1292 parent = talloc_zero(smbd_event_context(), struct smbd_parent_context);
1294 exit_server("talloc(struct smbd_parent_context) failed");
1296 parent->interactive = interactive;
1298 if (!open_sockets_smbd(parent, smbd_messaging_context(), ports))
1299 exit_server("open_sockets_smbd() failed");
1302 /* make sure we always have a valid stackframe */
1303 frame = talloc_stackframe();
1305 smbd_parent_loop(parent);
1307 exit_server_cleanly(NULL);