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"
33 #include "../librpc/gen_ndr/srv_dfs.h"
34 #include "../librpc/gen_ndr/srv_dssetup.h"
35 #include "../librpc/gen_ndr/srv_echo.h"
36 #include "../librpc/gen_ndr/srv_eventlog.h"
37 #include "../librpc/gen_ndr/srv_initshutdown.h"
38 #include "../librpc/gen_ndr/srv_lsa.h"
39 #include "../librpc/gen_ndr/srv_netlogon.h"
40 #include "../librpc/gen_ndr/srv_ntsvcs.h"
41 #include "../librpc/gen_ndr/srv_samr.h"
42 #include "../librpc/gen_ndr/srv_spoolss.h"
43 #include "../librpc/gen_ndr/srv_srvsvc.h"
44 #include "../librpc/gen_ndr/srv_svcctl.h"
45 #include "../librpc/gen_ndr/srv_winreg.h"
46 #include "../librpc/gen_ndr/srv_wkssvc.h"
48 #include "printing/nt_printing_migrate.h"
53 extern int dcelogin_atmost_once;
56 static void smbd_set_server_fd(int fd)
58 struct smbd_server_connection *sconn = smbd_server_conn;
59 char addr[INET6_ADDRSTRLEN];
65 * Initialize sconn->client_id: If we can't find the client's
66 * name, default to its address.
69 client_addr(fd, sconn->client_id.addr, sizeof(sconn->client_id.addr));
71 name = client_name(sconn->sock);
72 if (strcmp(name, "UNKNOWN") != 0) {
73 name = talloc_strdup(sconn, name);
77 sconn->client_id.name =
78 (name != NULL) ? name : sconn->client_id.addr;
80 sub_set_socket_ids(sconn->client_id.addr, sconn->client_id.name,
81 client_socket_addr(sconn->sock, addr,
85 struct event_context *smbd_event_context(void)
87 return server_event_context();
90 /*******************************************************************
91 What to do when smb.conf is updated.
92 ********************************************************************/
94 static void smb_conf_updated(struct messaging_context *msg,
97 struct server_id server_id,
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);
107 /*******************************************************************
108 Delete a statcache entry.
109 ********************************************************************/
111 static void smb_stat_cache_delete(struct messaging_context *msg,
114 struct server_id server_id,
117 const char *name = (const char *)data->data;
118 DEBUG(10,("smb_stat_cache_delete: delete name %s\n", name));
119 stat_cache_delete(name);
122 /****************************************************************************
123 Send a SIGTERM to our process group.
124 *****************************************************************************/
126 static void killkids(void)
128 if(am_parent) kill(0,SIGTERM);
131 /****************************************************************************
132 Process a sam sync message - not sure whether to do this here or
134 ****************************************************************************/
136 static void msg_sam_sync(struct messaging_context *msg,
139 struct server_id server_id,
142 DEBUG(10, ("** sam sync message received, ignoring\n"));
145 static void msg_exit_server(struct messaging_context *msg,
148 struct server_id server_id,
151 DEBUG(3, ("got a SHUTDOWN message\n"));
152 exit_server_cleanly(NULL);
156 static void msg_inject_fault(struct messaging_context *msg,
159 struct server_id src,
164 if (data->length != sizeof(sig)) {
165 DEBUG(0, ("Process %s sent bogus signal injection request\n",
166 procid_str_static(&src)));
170 sig = *(int *)data->data;
172 exit_server("internal error injected");
177 DEBUG(0, ("Process %s requested injection of signal %d (%s)\n",
178 procid_str_static(&src), sig, strsignal(sig)));
180 DEBUG(0, ("Process %s requested injection of signal %d\n",
181 procid_str_static(&src), sig));
184 kill(sys_getpid(), sig);
186 #endif /* DEVELOPER */
189 * Parent smbd process sets its own debug level first and then
190 * sends a message to all the smbd children to adjust their debug
191 * level to that of the parent.
194 static void smbd_msg_debug(struct messaging_context *msg_ctx,
197 struct server_id server_id,
200 struct child_pid *child;
202 debug_message(msg_ctx, private_data, MSG_DEBUG, server_id, data);
204 for (child = children; child != NULL; child = child->next) {
205 messaging_send_buf(msg_ctx, pid_to_procid(child->pid),
208 strlen((char *) data->data) + 1);
212 static void add_child_pid(pid_t pid)
214 struct child_pid *child;
216 child = SMB_MALLOC_P(struct child_pid);
218 DEBUG(0, ("Could not add child struct -- malloc failed\n"));
222 DLIST_ADD(children, child);
227 at most every smbd:cleanuptime seconds (default 20), we scan the BRL
228 and locking database for entries to cleanup. As a side effect this
229 also cleans up dead entries in the connections database (due to the
230 traversal in message_send_all()
232 Using a timer for this prevents a flood of traversals when a large
233 number of clients disconnect at the same time (perhaps due to a
237 static void cleanup_timeout_fn(struct event_context *event_ctx,
238 struct timed_event *te,
242 struct timed_event **cleanup_te = (struct timed_event **)private_data;
244 DEBUG(1,("Cleaning up brl and lock database after unclean shutdown\n"));
245 message_send_all(smbd_messaging_context(), MSG_SMB_UNLOCK, NULL, 0, NULL);
246 messaging_send_buf(smbd_messaging_context(), procid_self(),
247 MSG_SMB_BRL_VALIDATE, NULL, 0);
248 /* mark the cleanup as having been done */
249 (*cleanup_te) = NULL;
252 static void remove_child_pid(pid_t pid, bool unclean_shutdown)
254 struct child_pid *child;
255 static struct timed_event *cleanup_te;
256 struct server_id child_id;
258 if (unclean_shutdown) {
259 /* a child terminated uncleanly so tickle all
260 processes to see if they can grab any of the
263 DEBUG(3,(__location__ " Unclean shutdown of pid %u\n",
266 /* call the cleanup timer, but not too often */
267 int cleanup_time = lp_parm_int(-1, "smbd", "cleanuptime", 20);
268 cleanup_te = event_add_timed(smbd_event_context(), NULL,
269 timeval_current_ofs(cleanup_time, 0),
272 DEBUG(1,("Scheduled cleanup of brl and lock database after unclean shutdown\n"));
276 child_id = procid_self(); /* Just initialize pid and potentially vnn */
279 if (!serverid_deregister(child_id)) {
280 DEBUG(1, ("Could not remove pid %d from serverid.tdb\n",
284 for (child = children; child != NULL; child = child->next) {
285 if (child->pid == pid) {
286 struct child_pid *tmp = child;
287 DLIST_REMOVE(children, child);
294 DEBUG(0, ("Could not find child %d -- ignoring\n", (int)pid));
297 /****************************************************************************
298 Have we reached the process limit ?
299 ****************************************************************************/
301 static bool allowable_number_of_smbd_processes(void)
303 int max_processes = lp_max_smbd_processes();
308 return num_children < max_processes;
311 static void smbd_sig_chld_handler(struct tevent_context *ev,
312 struct tevent_signal *se,
321 while ((pid = sys_waitpid(-1, &status, WNOHANG)) > 0) {
322 bool unclean_shutdown = False;
324 /* If the child terminated normally, assume
325 it was an unclean shutdown unless the
328 if (WIFEXITED(status)) {
329 unclean_shutdown = WEXITSTATUS(status);
331 /* If the child terminated due to a signal
332 we always assume it was unclean.
334 if (WIFSIGNALED(status)) {
335 unclean_shutdown = True;
337 remove_child_pid(pid, unclean_shutdown);
341 static void smbd_setup_sig_chld_handler(void)
343 struct tevent_signal *se;
345 se = tevent_add_signal(smbd_event_context(),
346 smbd_event_context(),
348 smbd_sig_chld_handler,
351 exit_server("failed to setup SIGCHLD handler");
355 struct smbd_open_socket;
357 struct smbd_parent_context {
360 /* the list of listening sockets */
361 struct smbd_open_socket *sockets;
364 struct smbd_open_socket {
365 struct smbd_open_socket *prev, *next;
366 struct smbd_parent_context *parent;
368 struct tevent_fd *fde;
371 static void smbd_open_socket_close_fn(struct tevent_context *ev,
372 struct tevent_fd *fde,
376 /* this might be the socket_wrapper swrap_close() */
380 static void smbd_accept_connection(struct tevent_context *ev,
381 struct tevent_fd *fde,
385 struct smbd_open_socket *s = talloc_get_type_abort(private_data,
386 struct smbd_open_socket);
387 struct sockaddr_storage addr;
388 socklen_t in_addrlen = sizeof(addr);
393 fd = accept(s->fd, (struct sockaddr *)(void *)&addr,&in_addrlen);
394 smbd_set_server_fd(fd);
396 if (fd == -1 && errno == EINTR)
400 DEBUG(0,("open_sockets_smbd: accept: %s\n",
405 if (s->parent->interactive) {
406 smbd_process(smbd_server_conn);
407 exit_server_cleanly("end of interactive mode");
411 if (!allowable_number_of_smbd_processes()) {
413 smbd_set_server_fd(-1);
418 * Generate a unique id in the parent process so that we use
419 * the global random state in the parent.
421 generate_random_buffer((uint8_t *)&unique_id, sizeof(unique_id));
425 NTSTATUS status = NT_STATUS_OK;
430 set_my_unique_id(unique_id);
432 /* Stop zombies, the parent explicitly handles
433 * them, counting worker smbds. */
436 /* close our standard file
438 close_low_fds(False);
441 * Can't use TALLOC_FREE here. Nulling out the argument to it
442 * would overwrite memory we've just freed.
444 talloc_free(s->parent);
447 status = reinit_after_fork(smbd_messaging_context(),
448 smbd_event_context(), procid_self(),
450 if (!NT_STATUS_IS_OK(status)) {
451 if (NT_STATUS_EQUAL(status,
452 NT_STATUS_TOO_MANY_OPENED_FILES)) {
453 DEBUG(0,("child process cannot initialize "
454 "because too many files are open\n"));
457 DEBUG(0,("reinit_after_fork() failed\n"));
458 smb_panic("reinit_after_fork() failed");
461 smbd_setup_sig_term_handler();
462 smbd_setup_sig_hup_handler(server_event_context(),
463 server_messaging_context());
465 if (!serverid_register(procid_self(),
466 FLAG_MSG_GENERAL|FLAG_MSG_SMBD
468 |FLAG_MSG_PRINT_GENERAL)) {
469 exit_server_cleanly("Could not register myself in "
473 smbd_process(smbd_server_conn);
475 exit_server_cleanly("end of child");
480 DEBUG(0,("smbd_accept_connection: sys_fork() failed: %s\n",
484 /* The parent doesn't need this socket */
487 /* Sun May 6 18:56:14 2001 ackley@cs.unm.edu:
488 Clear the closed fd info out of server_fd --
489 and more importantly, out of client_fd in
490 util_sock.c, to avoid a possible
491 getpeername failure if we reopen the logs
492 and use %I in the filename.
495 smbd_set_server_fd(-1);
501 /* Force parent to check log size after
502 * spawning child. Fix from
503 * klausr@ITAP.Physik.Uni-Stuttgart.De. The
504 * parent smbd will log to logserver.smb. It
505 * writes only two messages for each child
506 * started/finished. But each child writes,
507 * say, 50 messages also in logserver.smb,
508 * begining with the debug_count of the
509 * parent, before the child opens its own log
510 * file logserver.client. In a worst case
511 * scenario the size of logserver.smb would be
512 * checked after about 50*50=2500 messages
515 force_check_log_size();
518 static bool smbd_open_one_socket(struct smbd_parent_context *parent,
519 const struct sockaddr_storage *ifss,
522 struct smbd_open_socket *s;
524 s = talloc(parent, struct smbd_open_socket);
530 s->fd = open_socket_in(SOCK_STREAM,
532 parent->sockets == NULL ? 0 : 2,
536 DEBUG(0,("smbd_open_once_socket: open_socket_in: "
537 "%s\n", strerror(errno)));
540 * We ignore an error here, as we've done before
545 /* ready to listen */
546 set_socket_options(s->fd, "SO_KEEPALIVE");
547 set_socket_options(s->fd, lp_socket_options());
549 /* Set server socket to
550 * non-blocking for the accept. */
551 set_blocking(s->fd, False);
553 if (listen(s->fd, SMBD_LISTEN_BACKLOG) == -1) {
554 DEBUG(0,("open_sockets_smbd: listen: "
555 "%s\n", strerror(errno)));
561 s->fde = tevent_add_fd(smbd_event_context(),
563 s->fd, TEVENT_FD_READ,
564 smbd_accept_connection,
567 DEBUG(0,("open_sockets_smbd: "
568 "tevent_add_fd: %s\n",
574 tevent_fd_set_close_fn(s->fde, smbd_open_socket_close_fn);
576 DLIST_ADD_END(parent->sockets, s, struct smbd_open_socket *);
581 /****************************************************************************
582 Open the socket communication.
583 ****************************************************************************/
585 static bool open_sockets_smbd(struct smbd_parent_context *parent,
586 const char *smb_ports)
588 int num_interfaces = iface_count();
591 unsigned dns_port = 0;
598 smbd_setup_sig_chld_handler();
600 /* use a reasonable default set of ports - listing on 445 and 139 */
602 ports = lp_smb_ports();
603 if (!ports || !*ports) {
604 ports = talloc_strdup(talloc_tos(), SMB_PORTS);
606 ports = talloc_strdup(talloc_tos(), ports);
609 ports = talloc_strdup(talloc_tos(), smb_ports);
612 if (lp_interfaces() && lp_bind_interfaces_only()) {
613 /* We have been given an interfaces line, and been
614 told to only bind to those interfaces. Create a
615 socket per interface and bind to only these.
618 /* Now open a listen socket for each of the
620 for(i = 0; i < num_interfaces; i++) {
621 const struct sockaddr_storage *ifss =
622 iface_n_sockaddr_storage(i);
627 DEBUG(0,("open_sockets_smbd: "
628 "interface %d has NULL IP address !\n",
634 next_token_talloc(talloc_tos(),&ptr, &tok, " \t,");) {
635 unsigned port = atoi(tok);
636 if (port == 0 || port > 0xffff) {
640 if (!smbd_open_one_socket(parent, ifss, port)) {
646 /* Just bind to 0.0.0.0 - accept connections
651 const char *sock_addr = lp_socket_address();
653 const char *sock_ptr;
655 if (strequal(sock_addr, "0.0.0.0") ||
656 strequal(sock_addr, "::")) {
658 sock_addr = "::,0.0.0.0";
660 sock_addr = "0.0.0.0";
664 for (sock_ptr=sock_addr;
665 next_token_talloc(talloc_tos(), &sock_ptr, &sock_tok, " \t,"); ) {
666 for (ptr=ports; next_token_talloc(talloc_tos(), &ptr, &tok, " \t,"); ) {
667 struct sockaddr_storage ss;
669 unsigned port = atoi(tok);
670 if (port == 0 || port > 0xffff) {
674 /* Keep the first port for mDNS service
681 /* open an incoming socket */
682 if (!interpret_string_addr(&ss, sock_tok,
683 AI_NUMERICHOST|AI_PASSIVE)) {
687 if (!smbd_open_one_socket(parent, &ss, port)) {
694 if (parent->sockets == NULL) {
695 DEBUG(0,("open_sockets_smbd: No "
696 "sockets available to bind to.\n"));
700 /* Setup the main smbd so that we can get messages. Note that
701 do this after starting listening. This is needed as when in
702 clustered mode, ctdb won't allow us to start doing database
703 operations until it has gone thru a full startup, which
704 includes checking to see that smbd is listening. */
706 if (!serverid_register(procid_self(),
707 FLAG_MSG_GENERAL|FLAG_MSG_SMBD
709 DEBUG(0, ("open_sockets_smbd: Failed to register "
710 "myself in serverid.tdb\n"));
714 /* Listen to messages */
716 messaging_register(smbd_messaging_context(), NULL,
717 MSG_SMB_SAM_SYNC, msg_sam_sync);
718 messaging_register(smbd_messaging_context(), NULL,
719 MSG_SHUTDOWN, msg_exit_server);
720 messaging_register(smbd_messaging_context(), NULL,
721 MSG_SMB_FILE_RENAME, msg_file_was_renamed);
722 messaging_register(smbd_messaging_context(), NULL,
723 MSG_SMB_CONF_UPDATED, smb_conf_updated);
724 messaging_register(smbd_messaging_context(), NULL,
725 MSG_SMB_STAT_CACHE_DELETE, smb_stat_cache_delete);
726 messaging_register(smbd_messaging_context(), NULL,
727 MSG_DEBUG, smbd_msg_debug);
728 brl_register_msgs(smbd_messaging_context());
730 #ifdef CLUSTER_SUPPORT
731 if (lp_clustering()) {
732 ctdbd_register_reconfigure(
733 messaging_ctdbd_connection(procid_self()));
738 messaging_register(smbd_messaging_context(), NULL,
739 MSG_SMB_INJECT_FAULT, msg_inject_fault);
743 #ifdef WITH_DNSSD_SUPPORT
744 smbd_setup_mdns_registration(smbd_event_context(),
747 #ifdef WITH_AVAHI_SUPPORT
750 avahi_conn = avahi_start_register(
751 smbd_event_context(), smbd_event_context(), dns_port);
752 if (avahi_conn == NULL) {
753 DEBUG(10, ("avahi_start_register failed\n"));
761 static void smbd_parent_loop(struct smbd_parent_context *parent)
763 /* now accept incoming connections - forking a new process
764 for each incoming connection */
765 DEBUG(2,("waiting for connections\n"));
768 TALLOC_CTX *frame = talloc_stackframe();
770 ret = tevent_loop_once(smbd_event_context());
772 exit_server_cleanly("tevent_loop_once() error");
778 /* NOTREACHED return True; */
782 /****************************************************************************
783 Initialise connect, service and file structs.
784 ****************************************************************************/
786 static bool init_structs(void )
789 * Set the machine NETBIOS name if not already
790 * set from the config file.
804 static bool spoolss_init_cb(void *ptr)
806 struct messaging_context *msg_ctx = talloc_get_type_abort(
807 ptr, struct messaging_context);
808 return nt_printing_tdb_migrate(msg_ctx);
811 /****************************************************************************
813 ****************************************************************************/
815 /* Declare prototype for build_options() to avoid having to run it through
816 mkproto.h. Mixing $(builddir) and $(srcdir) source files in the current
817 prototype generation system is too complicated. */
819 extern void build_options(bool screen);
821 int main(int argc,const char *argv[])
823 /* shall I run as a daemon */
824 bool is_daemon = false;
825 bool interactive = false;
827 bool no_process_group = false;
828 bool log_stdout = false;
830 char *profile_level = NULL;
833 bool print_build_options = False;
838 OPT_NO_PROCESS_GROUP,
841 struct poptOption long_options[] = {
843 {"daemon", 'D', POPT_ARG_NONE, NULL, OPT_DAEMON, "Become a daemon (default)" },
844 {"interactive", 'i', POPT_ARG_NONE, NULL, OPT_INTERACTIVE, "Run interactive (not a daemon)"},
845 {"foreground", 'F', POPT_ARG_NONE, NULL, OPT_FORK, "Run daemon in foreground (for daemontools, etc.)" },
846 {"no-process-group", '\0', POPT_ARG_NONE, NULL, OPT_NO_PROCESS_GROUP, "Don't create a new process group" },
847 {"log-stdout", 'S', POPT_ARG_NONE, NULL, OPT_LOG_STDOUT, "Log to stdout" },
848 {"build-options", 'b', POPT_ARG_NONE, NULL, 'b', "Print build options" },
849 {"port", 'p', POPT_ARG_STRING, &ports, 0, "Listen on the specified ports"},
850 {"profiling-level", 'P', POPT_ARG_STRING, &profile_level, 0, "Set profiling level","PROFILE_LEVEL"},
852 POPT_COMMON_DYNCONFIG
855 struct smbd_parent_context *parent = NULL;
856 TALLOC_CTX *frame = talloc_stackframe(); /* Setup tos. */
859 struct rpc_srv_callbacks spoolss_cb;
861 /* Initialize the event context, it will panic on error */
862 smbd_event_context();
868 #ifdef HAVE_SET_AUTH_PARAMETERS
869 set_auth_parameters(argc,argv);
872 pc = poptGetContext("smbd", argc, argv, long_options, 0);
873 while((opt = poptGetNextOpt(pc)) != -1) {
878 case OPT_INTERACTIVE:
884 case OPT_NO_PROCESS_GROUP:
885 no_process_group = true;
891 print_build_options = True;
894 d_fprintf(stderr, "\nInvalid option %s: %s\n\n",
895 poptBadOption(pc, 0), poptStrerror(opt));
896 poptPrintUsage(pc, stderr, 0);
907 setup_logging(argv[0],log_stdout);
909 if (print_build_options) {
910 build_options(True); /* Display output to screen as well as debug */
917 /* needed for SecureWare on SCO */
921 set_remote_machine_name("smbd", False);
923 if (interactive && (DEBUGLEVEL >= 9)) {
924 talloc_enable_leak_report();
927 if (log_stdout && Fork) {
928 DEBUG(0,("ERROR: Can't log to stdout (-S) unless daemon is in foreground (-F) or interactive (-i)\n"));
932 /* we want to re-seed early to prevent time delays causing
933 client problems at a later date. (tridge) */
934 generate_random_buffer(NULL, 0);
936 /* get initial effective uid and gid */
939 /* make absolutely sure we run as root - to handle cases where people
940 are crazy enough to have it setuid */
941 gain_root_privilege();
942 gain_root_group_privilege();
944 fault_setup((void (*)(void *))exit_server_fault);
945 dump_core_setup("smbd");
947 /* we are never interested in SIGPIPE */
948 BlockSignals(True,SIGPIPE);
951 /* we are never interested in SIGFPE */
952 BlockSignals(True,SIGFPE);
956 /* We are no longer interested in USR2 */
957 BlockSignals(True,SIGUSR2);
960 /* POSIX demands that signals are inherited. If the invoking process has
961 * these signals masked, we will have problems, as we won't recieve them. */
962 BlockSignals(False, SIGHUP);
963 BlockSignals(False, SIGUSR1);
964 BlockSignals(False, SIGTERM);
966 /* Ensure we leave no zombies until we
967 * correctly set up child handling below. */
971 /* we want total control over the permissions on created files,
972 so set our umask to 0 */
977 DEBUG(0,("smbd version %s started.\n", samba_version_string()));
978 DEBUGADD(0,("%s\n", COPYRIGHT_STARTUP_MESSAGE));
980 DEBUG(2,("uid=%d gid=%d euid=%d egid=%d\n",
981 (int)getuid(),(int)getgid(),(int)geteuid(),(int)getegid()));
983 /* Output the build options to the debug log */
984 build_options(False);
986 if (sizeof(uint16) < 2 || sizeof(uint32) < 4) {
987 DEBUG(0,("ERROR: Samba is not configured correctly for the word size on your machine\n"));
991 if (!lp_load_initial_only(get_dyn_CONFIGFILE())) {
992 DEBUG(0, ("error opening config file\n"));
996 /* Init the security context and global current_user */
999 if (smbd_messaging_context() == NULL)
1003 * Reloading of the printers will not work here as we don't have a
1004 * server info and rpc services set up. It will be called later.
1006 if (!reload_services(smbd_messaging_context(), -1, False)) {
1010 /* ...NOTE... Log files are working from this point! */
1012 DEBUG(3,("loaded services\n"));
1017 if (!profile_setup(smbd_messaging_context(), False)) {
1018 DEBUG(0,("ERROR: failed to setup profiling\n"));
1021 if (profile_level != NULL) {
1022 int pl = atoi(profile_level);
1023 struct server_id src;
1025 DEBUG(1, ("setting profiling level: %s\n",profile_level));
1027 set_profile_level(pl, src);
1031 if (!is_daemon && !is_a_socket(0)) {
1033 DEBUG(0,("standard input is not a socket, assuming -D option\n"));
1036 * Setting is_daemon here prevents us from eventually calling
1037 * the open_sockets_inetd()
1043 if (is_daemon && !interactive) {
1044 DEBUG( 3, ( "Becoming a daemon.\n" ) );
1045 become_daemon(Fork, no_process_group, log_stdout);
1048 generate_random_buffer((uint8_t *)&unique_id, sizeof(unique_id));
1049 set_my_unique_id(unique_id);
1053 * If we're interactive we want to set our own process group for
1054 * signal management.
1056 if (interactive && !no_process_group)
1057 setpgid( (pid_t)0, (pid_t)0);
1060 if (!directory_exist(lp_lockdir()))
1061 mkdir(lp_lockdir(), 0755);
1064 pidfile_create("smbd");
1066 status = reinit_after_fork(smbd_messaging_context(),
1067 smbd_event_context(),
1068 procid_self(), false);
1069 if (!NT_STATUS_IS_OK(status)) {
1070 DEBUG(0,("reinit_after_fork() failed\n"));
1074 smbd_server_conn->msg_ctx = smbd_messaging_context();
1076 smbd_setup_sig_term_handler();
1077 smbd_setup_sig_hup_handler(smbd_event_context(),
1078 smbd_server_conn->msg_ctx);
1080 /* Setup all the TDB's - including CLEAR_IF_FIRST tdb's. */
1082 if (smbd_memcache() == NULL) {
1086 memcache_set_global(smbd_memcache());
1088 /* Initialise the password backed before the global_sam_sid
1089 to ensure that we fetch from ldap before we make a domain sid up */
1091 if(!initialize_password_db(False, smbd_event_context()))
1094 if (!secrets_init()) {
1095 DEBUG(0, ("ERROR: smbd can not open secrets.tdb\n"));
1099 if (lp_server_role() == ROLE_DOMAIN_BDC || lp_server_role() == ROLE_DOMAIN_PDC) {
1100 if (!open_schannel_session_store(NULL, lp_private_dir())) {
1101 DEBUG(0,("ERROR: Samba cannot open schannel store for secured NETLOGON operations.\n"));
1106 if(!get_global_sam_sid()) {
1107 DEBUG(0,("ERROR: Samba cannot create a SAM SID.\n"));
1111 if (!sessionid_init()) {
1115 if (!connections_init(True))
1118 if (!locking_init())
1121 if (!messaging_tdb_parent_init()) {
1125 if (!notify_internal_parent_init()) {
1129 if (!serverid_parent_init()) {
1133 if (!W_ERROR_IS_OK(registry_init_full()))
1136 if (!print_backend_init(smbd_messaging_context()))
1140 if (!init_svcctl_db())
1144 /* Open the share_info.tdb here, so we don't have to open
1145 after the fork on every single connection. This is a small
1146 performance improvment and reduces the total number of system
1148 if (!share_info_db_init()) {
1149 DEBUG(0,("ERROR: failed to load share info db.\n"));
1153 if (!init_system_info()) {
1154 DEBUG(0,("ERROR: failed to setup system user info.\n"));
1158 if (!init_guest_info()) {
1159 DEBUG(0,("ERROR: failed to setup guest info.\n"));
1164 * Initialize spoolss with an init function to convert printers first.
1165 * static_init_rpc will try to initialize the spoolss server too but you
1166 * can't register it twice.
1168 spoolss_cb.init = spoolss_init_cb;
1169 spoolss_cb.shutdown = NULL;
1170 spoolss_cb.private_data = smbd_server_conn->msg_ctx;
1172 /* Spoolss depends on a winreg pipe, so start it first. */
1173 if (!NT_STATUS_IS_OK(rpc_winreg_init(NULL))) {
1177 if (!NT_STATUS_IS_OK(rpc_spoolss_init(&spoolss_cb))) {
1183 /* Publish nt printers, this requires a working winreg pipe */
1184 reload_printers(smbd_messaging_context());
1186 /* only start the background queue daemon if we are
1187 running as a daemon -- bad things will happen if
1188 smbd is launched via inetd and we fork a copy of
1191 if (is_daemon && !interactive
1192 && lp_parm_bool(-1, "smbd", "backgroundqueue", true)) {
1193 start_background_queue(smbd_event_context(),
1194 smbd_messaging_context());
1201 /* Started from inetd. fd 0 is the socket. */
1202 /* We will abort gracefully when the client or remote system
1204 smbd_set_server_fd(dup(0));
1206 /* close our standard file descriptors */
1207 close_low_fds(False); /* Don't close stderr */
1214 smbd_setup_sig_chld_handler();
1216 smbd_process(smbd_server_conn);
1218 exit_server_cleanly(NULL);
1222 parent = talloc_zero(smbd_event_context(), struct smbd_parent_context);
1224 exit_server("talloc(struct smbd_parent_context) failed");
1226 parent->interactive = interactive;
1228 if (!open_sockets_smbd(parent, ports))
1229 exit_server("open_sockets_smbd() failed");
1232 /* make sure we always have a valid stackframe */
1233 frame = talloc_stackframe();
1235 smbd_parent_loop(parent);
1237 exit_server_cleanly(NULL);