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"
44 extern void start_epmd(struct tevent_context *ev_ctx,
45 struct messaging_context *msg_ctx);
47 extern void start_spoolssd(struct event_context *ev_ctx,
48 struct messaging_context *msg_ctx);
51 extern int dcelogin_atmost_once;
54 static void smbd_set_server_fd(int fd)
56 struct smbd_server_connection *sconn = smbd_server_conn;
57 char addr[INET6_ADDRSTRLEN];
63 * Initialize sconn->client_id: If we can't find the client's
64 * name, default to its address.
67 client_addr(fd, sconn->client_id.addr, sizeof(sconn->client_id.addr));
69 name = client_name(sconn->sock);
70 if (strcmp(name, "UNKNOWN") != 0) {
71 name = talloc_strdup(sconn, name);
75 sconn->client_id.name =
76 (name != NULL) ? name : sconn->client_id.addr;
78 sub_set_socket_ids(sconn->client_id.addr, sconn->client_id.name,
79 client_socket_addr(sconn->sock, addr,
83 struct event_context *smbd_event_context(void)
85 return server_event_context();
88 /*******************************************************************
89 What to do when smb.conf is updated.
90 ********************************************************************/
92 static void smb_conf_updated(struct messaging_context *msg,
95 struct server_id server_id,
98 struct tevent_context *ev_ctx =
99 talloc_get_type_abort(private_data, struct tevent_context);
101 DEBUG(10,("smb_conf_updated: Got message saying smb.conf was "
102 "updated. Reloading.\n"));
103 change_to_root_user();
104 reload_services(msg, smbd_server_conn->sock, False);
106 pcap_cache_reload(ev_ctx, msg,
107 &reload_pcap_change_notify);
111 /*******************************************************************
112 What to do when printcap is updated.
113 ********************************************************************/
115 static void smb_pcap_updated(struct messaging_context *msg,
118 struct server_id server_id,
121 struct tevent_context *ev_ctx =
122 talloc_get_type_abort(private_data, struct tevent_context);
124 DEBUG(10,("Got message saying pcap was updated. Reloading.\n"));
125 change_to_root_user();
126 reload_printers(ev_ctx, msg);
129 /*******************************************************************
130 Delete a statcache entry.
131 ********************************************************************/
133 static void smb_stat_cache_delete(struct messaging_context *msg,
136 struct server_id server_id,
139 const char *name = (const char *)data->data;
140 DEBUG(10,("smb_stat_cache_delete: delete name %s\n", name));
141 stat_cache_delete(name);
144 /****************************************************************************
145 Send a SIGTERM to our process group.
146 *****************************************************************************/
148 static void killkids(void)
150 if(am_parent) kill(0,SIGTERM);
153 /****************************************************************************
154 Process a sam sync message - not sure whether to do this here or
156 ****************************************************************************/
158 static void msg_sam_sync(struct messaging_context *msg,
161 struct server_id server_id,
164 DEBUG(10, ("** sam sync message received, ignoring\n"));
167 static void msg_exit_server(struct messaging_context *msg,
170 struct server_id server_id,
173 DEBUG(3, ("got a SHUTDOWN message\n"));
174 exit_server_cleanly(NULL);
178 static void msg_inject_fault(struct messaging_context *msg,
181 struct server_id src,
186 if (data->length != sizeof(sig)) {
187 DEBUG(0, ("Process %s sent bogus signal injection request\n",
188 procid_str_static(&src)));
192 sig = *(int *)data->data;
194 exit_server("internal error injected");
199 DEBUG(0, ("Process %s requested injection of signal %d (%s)\n",
200 procid_str_static(&src), sig, strsignal(sig)));
202 DEBUG(0, ("Process %s requested injection of signal %d\n",
203 procid_str_static(&src), sig));
206 kill(sys_getpid(), sig);
208 #endif /* DEVELOPER */
211 * Parent smbd process sets its own debug level first and then
212 * sends a message to all the smbd children to adjust their debug
213 * level to that of the parent.
216 static void smbd_msg_debug(struct messaging_context *msg_ctx,
219 struct server_id server_id,
222 struct child_pid *child;
224 debug_message(msg_ctx, private_data, MSG_DEBUG, server_id, data);
226 for (child = children; child != NULL; child = child->next) {
227 messaging_send_buf(msg_ctx, pid_to_procid(child->pid),
230 strlen((char *) data->data) + 1);
234 static void add_child_pid(pid_t pid)
236 struct child_pid *child;
238 child = SMB_MALLOC_P(struct child_pid);
240 DEBUG(0, ("Could not add child struct -- malloc failed\n"));
244 DLIST_ADD(children, child);
249 at most every smbd:cleanuptime seconds (default 20), we scan the BRL
250 and locking database for entries to cleanup. As a side effect this
251 also cleans up dead entries in the connections database (due to the
252 traversal in message_send_all()
254 Using a timer for this prevents a flood of traversals when a large
255 number of clients disconnect at the same time (perhaps due to a
259 static void cleanup_timeout_fn(struct event_context *event_ctx,
260 struct timed_event *te,
264 struct timed_event **cleanup_te = (struct timed_event **)private_data;
266 DEBUG(1,("Cleaning up brl and lock database after unclean shutdown\n"));
267 message_send_all(smbd_messaging_context(), MSG_SMB_UNLOCK, NULL, 0, NULL);
268 messaging_send_buf(smbd_messaging_context(), procid_self(),
269 MSG_SMB_BRL_VALIDATE, NULL, 0);
270 /* mark the cleanup as having been done */
271 (*cleanup_te) = NULL;
274 static void remove_child_pid(pid_t pid, bool unclean_shutdown)
276 struct child_pid *child;
277 static struct timed_event *cleanup_te;
278 struct server_id child_id;
280 if (unclean_shutdown) {
281 /* a child terminated uncleanly so tickle all
282 processes to see if they can grab any of the
285 DEBUG(3,(__location__ " Unclean shutdown of pid %u\n",
288 /* call the cleanup timer, but not too often */
289 int cleanup_time = lp_parm_int(-1, "smbd", "cleanuptime", 20);
290 cleanup_te = event_add_timed(smbd_event_context(), NULL,
291 timeval_current_ofs(cleanup_time, 0),
294 DEBUG(1,("Scheduled cleanup of brl and lock database after unclean shutdown\n"));
298 child_id = procid_self(); /* Just initialize pid and potentially vnn */
301 if (!serverid_deregister(child_id)) {
302 DEBUG(1, ("Could not remove pid %d from serverid.tdb\n",
306 for (child = children; child != NULL; child = child->next) {
307 if (child->pid == pid) {
308 struct child_pid *tmp = child;
309 DLIST_REMOVE(children, child);
316 /* not all forked child processes are added to the children list */
317 DEBUG(1, ("Could not find child %d -- ignoring\n", (int)pid));
320 /****************************************************************************
321 Have we reached the process limit ?
322 ****************************************************************************/
324 static bool allowable_number_of_smbd_processes(void)
326 int max_processes = lp_max_smbd_processes();
331 return num_children < max_processes;
334 static void smbd_sig_chld_handler(struct tevent_context *ev,
335 struct tevent_signal *se,
344 while ((pid = sys_waitpid(-1, &status, WNOHANG)) > 0) {
345 bool unclean_shutdown = False;
347 /* If the child terminated normally, assume
348 it was an unclean shutdown unless the
351 if (WIFEXITED(status)) {
352 unclean_shutdown = WEXITSTATUS(status);
354 /* If the child terminated due to a signal
355 we always assume it was unclean.
357 if (WIFSIGNALED(status)) {
358 unclean_shutdown = True;
360 remove_child_pid(pid, unclean_shutdown);
364 static void smbd_setup_sig_chld_handler(void)
366 struct tevent_signal *se;
368 se = tevent_add_signal(smbd_event_context(),
369 smbd_event_context(),
371 smbd_sig_chld_handler,
374 exit_server("failed to setup SIGCHLD handler");
378 struct smbd_open_socket;
380 struct smbd_parent_context {
383 /* the list of listening sockets */
384 struct smbd_open_socket *sockets;
387 struct smbd_open_socket {
388 struct smbd_open_socket *prev, *next;
389 struct smbd_parent_context *parent;
391 struct tevent_fd *fde;
394 static void smbd_open_socket_close_fn(struct tevent_context *ev,
395 struct tevent_fd *fde,
399 /* this might be the socket_wrapper swrap_close() */
403 static void smbd_accept_connection(struct tevent_context *ev,
404 struct tevent_fd *fde,
408 struct smbd_open_socket *s = talloc_get_type_abort(private_data,
409 struct smbd_open_socket);
410 struct sockaddr_storage addr;
411 socklen_t in_addrlen = sizeof(addr);
416 fd = accept(s->fd, (struct sockaddr *)(void *)&addr,&in_addrlen);
417 smbd_set_server_fd(fd);
419 if (fd == -1 && errno == EINTR)
423 DEBUG(0,("open_sockets_smbd: accept: %s\n",
428 if (s->parent->interactive) {
429 smbd_process(smbd_server_conn);
430 exit_server_cleanly("end of interactive mode");
434 if (!allowable_number_of_smbd_processes()) {
436 smbd_set_server_fd(-1);
441 * Generate a unique id in the parent process so that we use
442 * the global random state in the parent.
444 generate_random_buffer((uint8_t *)&unique_id, sizeof(unique_id));
448 NTSTATUS status = NT_STATUS_OK;
453 set_my_unique_id(unique_id);
455 /* Stop zombies, the parent explicitly handles
456 * them, counting worker smbds. */
459 /* close our standard file
461 close_low_fds(False);
464 * Can't use TALLOC_FREE here. Nulling out the argument to it
465 * would overwrite memory we've just freed.
467 talloc_free(s->parent);
470 status = reinit_after_fork(smbd_messaging_context(),
471 smbd_event_context(), procid_self(),
473 if (!NT_STATUS_IS_OK(status)) {
474 if (NT_STATUS_EQUAL(status,
475 NT_STATUS_TOO_MANY_OPENED_FILES)) {
476 DEBUG(0,("child process cannot initialize "
477 "because too many files are open\n"));
480 DEBUG(0,("reinit_after_fork() failed\n"));
481 smb_panic("reinit_after_fork() failed");
484 smbd_setup_sig_term_handler();
485 smbd_setup_sig_hup_handler(server_event_context(),
486 server_messaging_context());
488 if (!serverid_register(procid_self(),
489 FLAG_MSG_GENERAL|FLAG_MSG_SMBD
491 |FLAG_MSG_PRINT_GENERAL)) {
492 exit_server_cleanly("Could not register myself in "
496 smbd_process(smbd_server_conn);
498 exit_server_cleanly("end of child");
503 DEBUG(0,("smbd_accept_connection: sys_fork() failed: %s\n",
507 /* The parent doesn't need this socket */
510 /* Sun May 6 18:56:14 2001 ackley@cs.unm.edu:
511 Clear the closed fd info out of server_fd --
512 and more importantly, out of client_fd in
513 util_sock.c, to avoid a possible
514 getpeername failure if we reopen the logs
515 and use %I in the filename.
518 smbd_set_server_fd(-1);
524 /* Force parent to check log size after
525 * spawning child. Fix from
526 * klausr@ITAP.Physik.Uni-Stuttgart.De. The
527 * parent smbd will log to logserver.smb. It
528 * writes only two messages for each child
529 * started/finished. But each child writes,
530 * say, 50 messages also in logserver.smb,
531 * begining with the debug_count of the
532 * parent, before the child opens its own log
533 * file logserver.client. In a worst case
534 * scenario the size of logserver.smb would be
535 * checked after about 50*50=2500 messages
538 force_check_log_size();
541 static bool smbd_open_one_socket(struct smbd_parent_context *parent,
542 const struct sockaddr_storage *ifss,
545 struct smbd_open_socket *s;
547 s = talloc(parent, struct smbd_open_socket);
553 s->fd = open_socket_in(SOCK_STREAM,
555 parent->sockets == NULL ? 0 : 2,
559 DEBUG(0,("smbd_open_once_socket: open_socket_in: "
560 "%s\n", strerror(errno)));
563 * We ignore an error here, as we've done before
568 /* ready to listen */
569 set_socket_options(s->fd, "SO_KEEPALIVE");
570 set_socket_options(s->fd, lp_socket_options());
572 /* Set server socket to
573 * non-blocking for the accept. */
574 set_blocking(s->fd, False);
576 if (listen(s->fd, SMBD_LISTEN_BACKLOG) == -1) {
577 DEBUG(0,("open_sockets_smbd: listen: "
578 "%s\n", strerror(errno)));
584 s->fde = tevent_add_fd(smbd_event_context(),
586 s->fd, TEVENT_FD_READ,
587 smbd_accept_connection,
590 DEBUG(0,("open_sockets_smbd: "
591 "tevent_add_fd: %s\n",
597 tevent_fd_set_close_fn(s->fde, smbd_open_socket_close_fn);
599 DLIST_ADD_END(parent->sockets, s, struct smbd_open_socket *);
604 static bool smbd_parent_housekeeping(const struct timeval *now, void *private_data)
606 time_t printcap_cache_time = (time_t)lp_printcap_cache_time();
607 time_t t = time_mono(NULL);
609 DEBUG(5, ("parent housekeeping\n"));
611 /* if periodic printcap rescan is enabled, see if it's time to reload */
612 if ((printcap_cache_time != 0)
613 && (t >= (last_printer_reload_time + printcap_cache_time))) {
614 DEBUG( 3,( "Printcap cache time expired.\n"));
615 pcap_cache_reload(server_event_context(),
616 smbd_messaging_context(),
617 &reload_pcap_change_notify);
618 last_printer_reload_time = t;
624 /****************************************************************************
625 Open the socket communication.
626 ****************************************************************************/
628 static bool open_sockets_smbd(struct smbd_parent_context *parent,
629 struct messaging_context *msg_ctx,
630 const char *smb_ports)
632 int num_interfaces = iface_count();
635 unsigned dns_port = 0;
642 smbd_setup_sig_chld_handler();
644 /* use a reasonable default set of ports - listing on 445 and 139 */
646 ports = lp_smb_ports();
647 if (!ports || !*ports) {
648 ports = talloc_strdup(talloc_tos(), SMB_PORTS);
650 ports = talloc_strdup(talloc_tos(), ports);
653 ports = talloc_strdup(talloc_tos(), smb_ports);
656 if (lp_interfaces() && lp_bind_interfaces_only()) {
657 /* We have been given an interfaces line, and been
658 told to only bind to those interfaces. Create a
659 socket per interface and bind to only these.
662 /* Now open a listen socket for each of the
664 for(i = 0; i < num_interfaces; i++) {
665 const struct sockaddr_storage *ifss =
666 iface_n_sockaddr_storage(i);
671 DEBUG(0,("open_sockets_smbd: "
672 "interface %d has NULL IP address !\n",
678 next_token_talloc(talloc_tos(),&ptr, &tok, " \t,");) {
679 unsigned port = atoi(tok);
680 if (port == 0 || port > 0xffff) {
684 if (!smbd_open_one_socket(parent, ifss, port)) {
690 /* Just bind to 0.0.0.0 - accept connections
695 const char *sock_addr = lp_socket_address();
697 const char *sock_ptr;
699 if (strequal(sock_addr, "0.0.0.0") ||
700 strequal(sock_addr, "::")) {
702 sock_addr = "::,0.0.0.0";
704 sock_addr = "0.0.0.0";
708 for (sock_ptr=sock_addr;
709 next_token_talloc(talloc_tos(), &sock_ptr, &sock_tok, " \t,"); ) {
710 for (ptr=ports; next_token_talloc(talloc_tos(), &ptr, &tok, " \t,"); ) {
711 struct sockaddr_storage ss;
713 unsigned port = atoi(tok);
714 if (port == 0 || port > 0xffff) {
718 /* Keep the first port for mDNS service
725 /* open an incoming socket */
726 if (!interpret_string_addr(&ss, sock_tok,
727 AI_NUMERICHOST|AI_PASSIVE)) {
731 if (!smbd_open_one_socket(parent, &ss, port)) {
738 if (parent->sockets == NULL) {
739 DEBUG(0,("open_sockets_smbd: No "
740 "sockets available to bind to.\n"));
744 /* Setup the main smbd so that we can get messages. Note that
745 do this after starting listening. This is needed as when in
746 clustered mode, ctdb won't allow us to start doing database
747 operations until it has gone thru a full startup, which
748 includes checking to see that smbd is listening. */
750 if (!serverid_register(procid_self(),
751 FLAG_MSG_GENERAL|FLAG_MSG_SMBD
753 DEBUG(0, ("open_sockets_smbd: Failed to register "
754 "myself in serverid.tdb\n"));
758 if (!(event_add_idle(smbd_event_context(), NULL,
759 timeval_set(SMBD_HOUSEKEEPING_INTERVAL, 0),
760 "parent_housekeeping", smbd_parent_housekeeping,
762 DEBUG(0, ("Could not add parent_housekeeping event\n"));
766 /* Listen to messages */
768 messaging_register(msg_ctx, NULL, MSG_SMB_SAM_SYNC, msg_sam_sync);
769 messaging_register(msg_ctx, NULL, MSG_SHUTDOWN, msg_exit_server);
770 messaging_register(msg_ctx, NULL, MSG_SMB_FILE_RENAME,
771 msg_file_was_renamed);
772 messaging_register(msg_ctx, server_event_context(), MSG_SMB_CONF_UPDATED,
774 messaging_register(msg_ctx, NULL, MSG_SMB_STAT_CACHE_DELETE,
775 smb_stat_cache_delete);
776 messaging_register(msg_ctx, NULL, MSG_DEBUG, smbd_msg_debug);
777 messaging_register(msg_ctx, server_event_context(), MSG_PRINTER_PCAP,
779 brl_register_msgs(msg_ctx);
781 msg_idmap_register_msgs(msg_ctx);
783 #ifdef CLUSTER_SUPPORT
784 if (lp_clustering()) {
785 ctdbd_register_reconfigure(messaging_ctdbd_connection());
790 messaging_register(msg_ctx, NULL, MSG_SMB_INJECT_FAULT,
794 if (lp_multicast_dns_register() && (dns_port != 0)) {
795 #ifdef WITH_DNSSD_SUPPORT
796 smbd_setup_mdns_registration(smbd_event_context(),
799 #ifdef WITH_AVAHI_SUPPORT
802 avahi_conn = avahi_start_register(
803 smbd_event_context(), smbd_event_context(), dns_port);
804 if (avahi_conn == NULL) {
805 DEBUG(10, ("avahi_start_register failed\n"));
813 static void smbd_parent_loop(struct smbd_parent_context *parent)
815 /* now accept incoming connections - forking a new process
816 for each incoming connection */
817 DEBUG(2,("waiting for connections\n"));
820 TALLOC_CTX *frame = talloc_stackframe();
822 ret = tevent_loop_once(smbd_event_context());
824 exit_server_cleanly("tevent_loop_once() error");
830 /* NOTREACHED return True; */
834 /****************************************************************************
835 Initialise connect, service and file structs.
836 ****************************************************************************/
838 static bool init_structs(void )
841 * Set the machine NETBIOS name if not already
842 * set from the config file.
854 /****************************************************************************
856 ****************************************************************************/
858 /* Declare prototype for build_options() to avoid having to run it through
859 mkproto.h. Mixing $(builddir) and $(srcdir) source files in the current
860 prototype generation system is too complicated. */
862 extern void build_options(bool screen);
864 int main(int argc,const char *argv[])
866 /* shall I run as a daemon */
867 bool is_daemon = false;
868 bool interactive = false;
870 bool no_process_group = false;
871 bool log_stdout = false;
873 char *profile_level = NULL;
876 bool print_build_options = False;
881 OPT_NO_PROCESS_GROUP,
884 struct poptOption long_options[] = {
886 {"daemon", 'D', POPT_ARG_NONE, NULL, OPT_DAEMON, "Become a daemon (default)" },
887 {"interactive", 'i', POPT_ARG_NONE, NULL, OPT_INTERACTIVE, "Run interactive (not a daemon)"},
888 {"foreground", 'F', POPT_ARG_NONE, NULL, OPT_FORK, "Run daemon in foreground (for daemontools, etc.)" },
889 {"no-process-group", '\0', POPT_ARG_NONE, NULL, OPT_NO_PROCESS_GROUP, "Don't create a new process group" },
890 {"log-stdout", 'S', POPT_ARG_NONE, NULL, OPT_LOG_STDOUT, "Log to stdout" },
891 {"build-options", 'b', POPT_ARG_NONE, NULL, 'b', "Print build options" },
892 {"port", 'p', POPT_ARG_STRING, &ports, 0, "Listen on the specified ports"},
893 {"profiling-level", 'P', POPT_ARG_STRING, &profile_level, 0, "Set profiling level","PROFILE_LEVEL"},
895 POPT_COMMON_DYNCONFIG
898 struct smbd_parent_context *parent = NULL;
904 * Do this before any other talloc operation
906 talloc_enable_null_tracking();
907 frame = talloc_stackframe();
911 /* Initialize the event context, it will panic on error */
912 smbd_event_context();
918 #ifdef HAVE_SET_AUTH_PARAMETERS
919 set_auth_parameters(argc,argv);
922 pc = poptGetContext("smbd", argc, argv, long_options, 0);
923 while((opt = poptGetNextOpt(pc)) != -1) {
928 case OPT_INTERACTIVE:
934 case OPT_NO_PROCESS_GROUP:
935 no_process_group = true;
941 print_build_options = True;
944 d_fprintf(stderr, "\nInvalid option %s: %s\n\n",
945 poptBadOption(pc, 0), poptStrerror(opt));
946 poptPrintUsage(pc, stderr, 0);
958 setup_logging(argv[0], DEBUG_STDOUT);
960 setup_logging(argv[0], DEBUG_FILE);
963 if (print_build_options) {
964 build_options(True); /* Display output to screen as well as debug */
969 /* needed for SecureWare on SCO */
973 set_remote_machine_name("smbd", False);
975 if (interactive && (DEBUGLEVEL >= 9)) {
976 talloc_enable_leak_report();
979 if (log_stdout && Fork) {
980 DEBUG(0,("ERROR: Can't log to stdout (-S) unless daemon is in foreground (-F) or interactive (-i)\n"));
984 /* we want to re-seed early to prevent time delays causing
985 client problems at a later date. (tridge) */
986 generate_random_buffer(NULL, 0);
988 /* get initial effective uid and gid */
991 /* make absolutely sure we run as root - to handle cases where people
992 are crazy enough to have it setuid */
993 gain_root_privilege();
994 gain_root_group_privilege();
997 dump_core_setup("smbd", lp_logfile());
999 /* we are never interested in SIGPIPE */
1000 BlockSignals(True,SIGPIPE);
1003 /* we are never interested in SIGFPE */
1004 BlockSignals(True,SIGFPE);
1007 #if defined(SIGUSR2)
1008 /* We are no longer interested in USR2 */
1009 BlockSignals(True,SIGUSR2);
1012 /* POSIX demands that signals are inherited. If the invoking process has
1013 * these signals masked, we will have problems, as we won't recieve them. */
1014 BlockSignals(False, SIGHUP);
1015 BlockSignals(False, SIGUSR1);
1016 BlockSignals(False, SIGTERM);
1018 /* Ensure we leave no zombies until we
1019 * correctly set up child handling below. */
1023 /* we want total control over the permissions on created files,
1024 so set our umask to 0 */
1029 DEBUG(0,("smbd version %s started.\n", samba_version_string()));
1030 DEBUGADD(0,("%s\n", COPYRIGHT_STARTUP_MESSAGE));
1032 DEBUG(2,("uid=%d gid=%d euid=%d egid=%d\n",
1033 (int)getuid(),(int)getgid(),(int)geteuid(),(int)getegid()));
1035 /* Output the build options to the debug log */
1036 build_options(False);
1038 if (sizeof(uint16) < 2 || sizeof(uint32) < 4) {
1039 DEBUG(0,("ERROR: Samba is not configured correctly for the word size on your machine\n"));
1043 if (!lp_load_initial_only(get_dyn_CONFIGFILE())) {
1044 DEBUG(0, ("error opening config file '%s'\n", get_dyn_CONFIGFILE()));
1048 /* Init the security context and global current_user */
1051 if (smbd_messaging_context() == NULL)
1055 * Reloading of the printers will not work here as we don't have a
1056 * server info and rpc services set up. It will be called later.
1058 if (!reload_services(smbd_messaging_context(), -1, False)) {
1062 /* ...NOTE... Log files are working from this point! */
1064 DEBUG(3,("loaded services\n"));
1069 if (!profile_setup(smbd_messaging_context(), False)) {
1070 DEBUG(0,("ERROR: failed to setup profiling\n"));
1073 if (profile_level != NULL) {
1074 int pl = atoi(profile_level);
1075 struct server_id src;
1077 DEBUG(1, ("setting profiling level: %s\n",profile_level));
1079 set_profile_level(pl, src);
1083 if (!is_daemon && !is_a_socket(0)) {
1085 DEBUG(0,("standard input is not a socket, assuming -D option\n"));
1088 * Setting is_daemon here prevents us from eventually calling
1089 * the open_sockets_inetd()
1095 if (is_daemon && !interactive) {
1096 DEBUG( 3, ( "Becoming a daemon.\n" ) );
1097 become_daemon(Fork, no_process_group, log_stdout);
1100 generate_random_buffer((uint8_t *)&unique_id, sizeof(unique_id));
1101 set_my_unique_id(unique_id);
1105 * If we're interactive we want to set our own process group for
1106 * signal management.
1108 if (interactive && !no_process_group)
1109 setpgid( (pid_t)0, (pid_t)0);
1112 if (!directory_exist(lp_lockdir()))
1113 mkdir(lp_lockdir(), 0755);
1116 pidfile_create("smbd");
1118 status = reinit_after_fork(smbd_messaging_context(),
1119 smbd_event_context(),
1120 procid_self(), false);
1121 if (!NT_STATUS_IS_OK(status)) {
1122 DEBUG(0,("reinit_after_fork() failed\n"));
1126 smbd_server_conn->msg_ctx = smbd_messaging_context();
1128 smbd_setup_sig_term_handler();
1129 smbd_setup_sig_hup_handler(smbd_event_context(),
1130 smbd_server_conn->msg_ctx);
1132 /* Setup all the TDB's - including CLEAR_IF_FIRST tdb's. */
1134 if (smbd_memcache() == NULL) {
1138 memcache_set_global(smbd_memcache());
1140 /* Initialise the password backed before the global_sam_sid
1141 to ensure that we fetch from ldap before we make a domain sid up */
1143 if(!initialize_password_db(False, smbd_event_context()))
1146 if (!secrets_init()) {
1147 DEBUG(0, ("ERROR: smbd can not open secrets.tdb\n"));
1151 if (lp_server_role() == ROLE_DOMAIN_BDC || lp_server_role() == ROLE_DOMAIN_PDC) {
1152 if (!open_schannel_session_store(NULL, lp_private_dir())) {
1153 DEBUG(0,("ERROR: Samba cannot open schannel store for secured NETLOGON operations.\n"));
1158 if(!get_global_sam_sid()) {
1159 DEBUG(0,("ERROR: Samba cannot create a SAM SID.\n"));
1163 if (!sessionid_init()) {
1167 if (!connections_init(True))
1170 if (!locking_init())
1173 if (!messaging_tdb_parent_init(smbd_event_context())) {
1177 if (!notify_internal_parent_init(smbd_event_context())) {
1181 if (!serverid_parent_init(smbd_event_context())) {
1185 if (!printer_list_parent_init()) {
1189 if (!W_ERROR_IS_OK(registry_init_full()))
1192 if (!print_backend_init(smbd_messaging_context()))
1195 /* Open the share_info.tdb here, so we don't have to open
1196 after the fork on every single connection. This is a small
1197 performance improvment and reduces the total number of system
1199 if (!share_info_db_init()) {
1200 DEBUG(0,("ERROR: failed to load share info db.\n"));
1204 status = init_system_info();
1205 if (!NT_STATUS_IS_OK(status)) {
1206 DEBUG(1, ("ERROR: failed to setup system user info: %s.\n",
1207 nt_errstr(status)));
1211 if (!init_guest_info()) {
1212 DEBUG(0,("ERROR: failed to setup guest info.\n"));
1216 if (!file_init(smbd_server_conn)) {
1217 DEBUG(0, ("ERROR: file_init failed\n"));
1221 if (is_daemon && !interactive) {
1222 const char *rpcsrv_type;
1224 rpcsrv_type = lp_parm_const_string(GLOBAL_SECTION_SNUM,
1225 "rpc_server", "epmapper",
1227 if (StrCaseCmp(rpcsrv_type, "daemon") == 0) {
1228 start_epmd(smbd_event_context(),
1229 smbd_server_conn->msg_ctx);
1233 if (!dcesrv_ep_setup(smbd_event_context(), smbd_server_conn->msg_ctx)) {
1237 /* Publish nt printers, this requires a working winreg pipe */
1238 pcap_cache_reload(server_event_context(), smbd_messaging_context(),
1241 /* only start the background queue daemon if we are
1242 running as a daemon -- bad things will happen if
1243 smbd is launched via inetd and we fork a copy of
1246 if (is_daemon && !interactive
1247 && lp_parm_bool(-1, "smbd", "backgroundqueue", true)) {
1248 start_background_queue(smbd_event_context(),
1249 smbd_messaging_context());
1252 if (is_daemon && !_lp_disable_spoolss()) {
1253 const char *rpcsrv_type;
1255 /* start spoolss daemon */
1256 /* start as a separate daemon only if enabled */
1257 rpcsrv_type = lp_parm_const_string(GLOBAL_SECTION_SNUM,
1258 "rpc_server", "spoolss",
1260 if (StrCaseCmp(rpcsrv_type, "daemon") == 0) {
1261 start_spoolssd(smbd_event_context(),
1262 smbd_messaging_context());
1270 /* Started from inetd. fd 0 is the socket. */
1271 /* We will abort gracefully when the client or remote system
1273 smbd_set_server_fd(dup(0));
1275 /* close our standard file descriptors */
1276 close_low_fds(False); /* Don't close stderr */
1283 smbd_setup_sig_chld_handler();
1285 smbd_process(smbd_server_conn);
1287 exit_server_cleanly(NULL);
1291 parent = talloc_zero(smbd_event_context(), struct smbd_parent_context);
1293 exit_server("talloc(struct smbd_parent_context) failed");
1295 parent->interactive = interactive;
1297 if (!open_sockets_smbd(parent, smbd_messaging_context(), ports))
1298 exit_server("open_sockets_smbd() failed");
1301 /* make sure we always have a valid stackframe */
1302 frame = talloc_stackframe();
1304 smbd_parent_loop(parent);
1306 exit_server_cleanly(NULL);