void become_daemon(bool Fork) { int ret; if (Fork) { if (fork()) { _exit(0); } } /* detach from the terminal */ setsid(); /* chdir to / to be sure we're not on a remote filesystem */ errno = 0; if(chdir("/") == -1) { ret = errno; DEBUG(0, ("Cannot change directory (%d [%s])\n", ret, strerror(ret))); return; } /* Close fd's 0,1,2. Needed if started by rsh */ close_low_fds(); }
_PUBLIC_ void become_daemon(bool do_fork, bool no_process_group, bool log_stdout) { if (do_fork) { if (sys_fork()) { _exit(0); } } /* detach from the terminal */ #ifdef HAVE_SETSID if (!no_process_group) setsid(); #elif defined(TIOCNOTTY) if (!no_process_group) { int i = sys_open("/dev/tty", O_RDWR, 0); if (i != -1) { ioctl(i, (int) TIOCNOTTY, (char *)0); close(i); } } #endif /* HAVE_SETSID */ if (!log_stdout) { /* Close fd's 0,1,2. Needed if started by rsh */ close_low_fds(false); /* Don't close stderr, let the debug system attach it to the logfile */ } }
_PUBLIC_ void become_daemon(bool do_fork, bool no_process_group, bool log_stdout) { pid_t newpid; if (do_fork) { newpid = fork(); if (newpid) { #if HAVE_SYSTEMD sd_notifyf(0, "READY=0\nSTATUS=Starting process...\nMAINPID=%lu", (unsigned long) newpid); #endif /* HAVE_SYSTEMD */ _exit(0); } } /* detach from the terminal */ #ifdef HAVE_SETSID if (!no_process_group) setsid(); #elif defined(TIOCNOTTY) if (!no_process_group) { int i = open("/dev/tty", O_RDWR, 0); if (i != -1) { ioctl(i, (int) TIOCNOTTY, (char *)0); close(i); } } #endif /* HAVE_SETSID */ /* Close fd's 0,1,2 as appropriate. Needed if started by rsh. */ /* stdin must be open if we do not fork, for monitoring for * close. stdout must be open if we are logging there, and we * never close stderr (but debug might dup it onto a log file) */ close_low_fds(do_fork, !log_stdout, false); }
BOOL reopen_logs( void ) { pstring fname; mode_t oldumask; XFILE *new_dbf = NULL; XFILE *old_dbf = NULL; BOOL ret = True; if (stdout_logging) return True; oldumask = umask( 022 ); pstrcpy(fname, debugf ); if (lp_loaded()) { char *logfname; logfname = lp_logfile(); if (*logfname) pstrcpy(fname, logfname); } pstrcpy( debugf, fname ); new_dbf = x_fopen( debugf, O_WRONLY|O_APPEND|O_CREAT, 0644); if (!new_dbf) { log_overflow = True; DEBUG(0, ("Unable to open new log file %s: %s\n", debugf, strerror(errno))); log_overflow = False; if (dbf) x_fflush(dbf); ret = False; } else { x_setbuf(new_dbf, NULL); old_dbf = dbf; dbf = new_dbf; if (old_dbf) (void) x_fclose(old_dbf); } /* Fix from [email protected] * to fix problem where smbd's that generate less * than 100 messages keep growing the log. */ force_check_log_size(); (void)umask(oldumask); /* Take over stderr to catch ouput into logs */ if (dbf && sys_dup2(x_fileno(dbf), 2) == -1) { close_low_fds(True); /* Close stderr too, if dup2 can't point it at the logfile */ } return ret; }
static BOOL open_sockets_inetd(void) { /* Started from inetd. fd 0 is the socket. */ /* We will abort gracefully when the client or remote system goes away */ smbd_set_server_fd(dup(0)); /* close our standard file descriptors */ close_low_fds(False); /* Don't close stderr */ set_socket_options(smbd_server_fd(),"SO_KEEPALIVE"); set_socket_options(smbd_server_fd(), user_socket_options); return True; }
void start_epmd(struct tevent_context *ev_ctx, struct messaging_context *msg_ctx) { struct rpc_srv_callbacks epmapper_cb; NTSTATUS status; pid_t pid; bool ok; int rc; epmapper_cb.init = NULL; epmapper_cb.shutdown = epmapper_shutdown_cb; epmapper_cb.private_data = NULL; DEBUG(1, ("Forking Endpoint Mapper Daemon\n")); pid = sys_fork(); if (pid == -1) { DEBUG(0, ("Failed to fork Endpoint Mapper [%s], aborting ...\n", strerror(errno))); exit(1); } if (pid) { /* parent */ return; } /* child */ close_low_fds(false); status = reinit_after_fork(msg_ctx, ev_ctx, procid_self(), true); if (!NT_STATUS_IS_OK(status)) { DEBUG(0,("reinit_after_fork() failed\n")); smb_panic("reinit_after_fork() failed"); } epmd_reopen_logs(); epmd_setup_sig_term_handler(ev_ctx); epmd_setup_sig_hup_handler(ev_ctx, msg_ctx); ok = serverid_register(procid_self(), FLAG_MSG_GENERAL|FLAG_MSG_SMBD |FLAG_MSG_PRINT_GENERAL); if (!ok) { DEBUG(0, ("Failed to register serverid in epmd!\n")); exit(1); } messaging_register(msg_ctx, ev_ctx, MSG_SMB_CONF_UPDATED, epmd_smb_conf_updated); status = rpc_epmapper_init(&epmapper_cb); if (!NT_STATUS_IS_OK(status)) { DEBUG(0, ("Failed to register epmd rpc inteface! (%s)\n", nt_errstr(status))); exit(1); } ok = setup_dcerpc_ncalrpc_socket(ev_ctx, msg_ctx, ndr_table_epmapper.syntax_id, "EPMAPPER", srv_epmapper_delete_endpoints); if (!ok) { DEBUG(0, ("Failed to open epmd ncalrpc pipe!\n")); exit(1); } ok = epmd_open_sockets(ev_ctx, msg_ctx); if (!ok) { DEBUG(0, ("Failed to open epmd tcpip sockets!\n")); exit(1); } ok = setup_named_pipe_socket("epmapper", ev_ctx); if (!ok) { DEBUG(0, ("Failed to open epmd named pipe!\n")); exit(1); } DEBUG(1, ("Endpoint Mapper Daemon Started (%d)\n", getpid())); /* loop forever */ rc = tevent_loop_wait(ev_ctx); /* should not be reached */ DEBUG(0,("background_queue: tevent_loop_wait() exited with %d - %s\n", rc, (rc == 0) ? "out of events" : strerror(errno))); exit(1); }
int main(int argc,const char *argv[]) { /* shall I run as a daemon */ bool is_daemon = false; bool interactive = false; bool Fork = true; bool no_process_group = false; bool log_stdout = false; char *ports = NULL; char *profile_level = NULL; int opt; poptContext pc; bool print_build_options = False; enum { OPT_DAEMON = 1000, OPT_INTERACTIVE, OPT_FORK, OPT_NO_PROCESS_GROUP, OPT_LOG_STDOUT }; struct poptOption long_options[] = { POPT_AUTOHELP {"daemon", 'D', POPT_ARG_NONE, NULL, OPT_DAEMON, "Become a daemon (default)" }, {"interactive", 'i', POPT_ARG_NONE, NULL, OPT_INTERACTIVE, "Run interactive (not a daemon)"}, {"foreground", 'F', POPT_ARG_NONE, NULL, OPT_FORK, "Run daemon in foreground (for daemontools, etc.)" }, {"no-process-group", '\0', POPT_ARG_NONE, NULL, OPT_NO_PROCESS_GROUP, "Don't create a new process group" }, {"log-stdout", 'S', POPT_ARG_NONE, NULL, OPT_LOG_STDOUT, "Log to stdout" }, {"build-options", 'b', POPT_ARG_NONE, NULL, 'b', "Print build options" }, {"port", 'p', POPT_ARG_STRING, &ports, 0, "Listen on the specified ports"}, {"profiling-level", 'P', POPT_ARG_STRING, &profile_level, 0, "Set profiling level","PROFILE_LEVEL"}, POPT_COMMON_SAMBA POPT_COMMON_DYNCONFIG POPT_TABLEEND }; struct smbd_parent_context *parent = NULL; TALLOC_CTX *frame; NTSTATUS status; uint64_t unique_id; struct tevent_context *ev_ctx; struct messaging_context *msg_ctx; /* * Do this before any other talloc operation */ talloc_enable_null_tracking(); frame = talloc_stackframe(); setup_logging(argv[0], DEBUG_DEFAULT_STDOUT); load_case_tables(); smbd_init_globals(); TimeInit(); #ifdef HAVE_SET_AUTH_PARAMETERS set_auth_parameters(argc,argv); #endif pc = poptGetContext("smbd", argc, argv, long_options, 0); while((opt = poptGetNextOpt(pc)) != -1) { switch (opt) { case OPT_DAEMON: is_daemon = true; break; case OPT_INTERACTIVE: interactive = true; break; case OPT_FORK: Fork = false; break; case OPT_NO_PROCESS_GROUP: no_process_group = true; break; case OPT_LOG_STDOUT: log_stdout = true; break; case 'b': print_build_options = True; break; default: d_fprintf(stderr, "\nInvalid option %s: %s\n\n", poptBadOption(pc, 0), poptStrerror(opt)); poptPrintUsage(pc, stderr, 0); exit(1); } } poptFreeContext(pc); if (interactive) { Fork = False; log_stdout = True; } if (log_stdout) { setup_logging(argv[0], DEBUG_STDOUT); } else { setup_logging(argv[0], DEBUG_FILE); } if (print_build_options) { build_options(True); /* Display output to screen as well as debug */ exit(0); } #ifdef HAVE_SETLUID /* needed for SecureWare on SCO */ setluid(0); #endif set_remote_machine_name("smbd", False); if (interactive && (DEBUGLEVEL >= 9)) { talloc_enable_leak_report(); } if (log_stdout && Fork) { DEBUG(0,("ERROR: Can't log to stdout (-S) unless daemon is in foreground (-F) or interactive (-i)\n")); exit(1); } /* we want to re-seed early to prevent time delays causing client problems at a later date. (tridge) */ generate_random_buffer(NULL, 0); /* get initial effective uid and gid */ sec_init(); /* make absolutely sure we run as root - to handle cases where people are crazy enough to have it setuid */ gain_root_privilege(); gain_root_group_privilege(); fault_setup(); dump_core_setup("smbd", lp_logfile()); /* we are never interested in SIGPIPE */ BlockSignals(True,SIGPIPE); #if defined(SIGFPE) /* we are never interested in SIGFPE */ BlockSignals(True,SIGFPE); #endif #if defined(SIGUSR2) /* We are no longer interested in USR2 */ BlockSignals(True,SIGUSR2); #endif /* POSIX demands that signals are inherited. If the invoking process has * these signals masked, we will have problems, as we won't recieve them. */ BlockSignals(False, SIGHUP); BlockSignals(False, SIGUSR1); BlockSignals(False, SIGTERM); /* Ensure we leave no zombies until we * correctly set up child handling below. */ CatchChild(); /* we want total control over the permissions on created files, so set our umask to 0 */ umask(0); reopen_logs(); DEBUG(0,("smbd version %s started.\n", samba_version_string())); DEBUGADD(0,("%s\n", COPYRIGHT_STARTUP_MESSAGE)); DEBUG(2,("uid=%d gid=%d euid=%d egid=%d\n", (int)getuid(),(int)getgid(),(int)geteuid(),(int)getegid())); /* Output the build options to the debug log */ build_options(False); if (sizeof(uint16) < 2 || sizeof(uint32) < 4) { DEBUG(0,("ERROR: Samba is not configured correctly for the word size on your machine\n")); exit(1); } if (!lp_load_initial_only(get_dyn_CONFIGFILE())) { DEBUG(0, ("error opening config file '%s'\n", get_dyn_CONFIGFILE())); exit(1); } /* Init the security context and global current_user */ init_sec_ctx(); /* * Initialize the event context. The event context needs to be * initialized before the messaging context, cause the messaging * context holds an event context. * FIXME: This should be s3_tevent_context_init() */ ev_ctx = server_event_context(); if (ev_ctx == NULL) { exit(1); } /* * Init the messaging context * FIXME: This should only call messaging_init() */ msg_ctx = server_messaging_context(); if (msg_ctx == NULL) { exit(1); } /* * Reloading of the printers will not work here as we don't have a * server info and rpc services set up. It will be called later. */ if (!reload_services(NULL, -1, False)) { exit(1); } /* ...NOTE... Log files are working from this point! */ DEBUG(3,("loaded services\n")); init_structs(); #ifdef WITH_PROFILE if (!profile_setup(msg_ctx, False)) { DEBUG(0,("ERROR: failed to setup profiling\n")); return -1; } if (profile_level != NULL) { int pl = atoi(profile_level); struct server_id src; DEBUG(1, ("setting profiling level: %s\n",profile_level)); src.pid = getpid(); set_profile_level(pl, src); } #endif if (!is_daemon && !is_a_socket(0)) { if (!interactive) DEBUG(0,("standard input is not a socket, assuming -D option\n")); /* * Setting is_daemon here prevents us from eventually calling * the open_sockets_inetd() */ is_daemon = True; } if (is_daemon && !interactive) { DEBUG( 3, ( "Becoming a daemon.\n" ) ); become_daemon(Fork, no_process_group, log_stdout); } generate_random_buffer((uint8_t *)&unique_id, sizeof(unique_id)); set_my_unique_id(unique_id); #if HAVE_SETPGID /* * If we're interactive we want to set our own process group for * signal management. */ if (interactive && !no_process_group) setpgid( (pid_t)0, (pid_t)0); #endif if (!directory_exist(lp_lockdir())) mkdir(lp_lockdir(), 0755); if (is_daemon) pidfile_create("smbd"); status = reinit_after_fork(msg_ctx, ev_ctx, procid_self(), false); if (!NT_STATUS_IS_OK(status)) { DEBUG(0,("reinit_after_fork() failed\n")); exit(1); } smbd_server_conn->msg_ctx = msg_ctx; smbd_setup_sig_term_handler(); smbd_setup_sig_hup_handler(ev_ctx, msg_ctx); /* Setup all the TDB's - including CLEAR_IF_FIRST tdb's. */ if (smbd_memcache() == NULL) { exit(1); } memcache_set_global(smbd_memcache()); /* Initialise the password backed before the global_sam_sid to ensure that we fetch from ldap before we make a domain sid up */ if(!initialize_password_db(false, ev_ctx)) exit(1); if (!secrets_init()) { DEBUG(0, ("ERROR: smbd can not open secrets.tdb\n")); exit(1); } if (lp_server_role() == ROLE_DOMAIN_BDC || lp_server_role() == ROLE_DOMAIN_PDC) { struct loadparm_context *lp_ctx = loadparm_init_s3(NULL, loadparm_s3_context()); if (!open_schannel_session_store(NULL, lp_ctx)) { DEBUG(0,("ERROR: Samba cannot open schannel store for secured NETLOGON operations.\n")); exit(1); } TALLOC_FREE(lp_ctx); } if(!get_global_sam_sid()) { DEBUG(0,("ERROR: Samba cannot create a SAM SID.\n")); exit(1); } if (!sessionid_init()) { exit(1); } if (!connections_init(True)) exit(1); if (!locking_init()) exit(1); if (!messaging_tdb_parent_init(ev_ctx)) { exit(1); } if (!notify_internal_parent_init(ev_ctx)) { exit(1); } if (!serverid_parent_init(ev_ctx)) { exit(1); } if (!W_ERROR_IS_OK(registry_init_full())) exit(1); /* Open the share_info.tdb here, so we don't have to open after the fork on every single connection. This is a small performance improvment and reduces the total number of system fds used. */ if (!share_info_db_init()) { DEBUG(0,("ERROR: failed to load share info db.\n")); exit(1); } status = init_system_info(); if (!NT_STATUS_IS_OK(status)) { DEBUG(1, ("ERROR: failed to setup system user info: %s.\n", nt_errstr(status))); return -1; } if (!init_guest_info()) { DEBUG(0,("ERROR: failed to setup guest info.\n")); return -1; } if (!file_init(smbd_server_conn)) { DEBUG(0, ("ERROR: file_init failed\n")); return -1; } /* This MUST be done before start_epmd() because otherwise * start_epmd() forks and races against dcesrv_ep_setup() to * call directory_create_or_exist() */ if (!directory_create_or_exist(lp_ncalrpc_dir(), geteuid(), 0755)) { DEBUG(0, ("Failed to create pipe directory %s - %s\n", lp_ncalrpc_dir(), strerror(errno))); return -1; } if (is_daemon && !interactive) { if (rpc_epmapper_daemon() == RPC_DAEMON_FORK) { start_epmd(ev_ctx, msg_ctx); } } if (!dcesrv_ep_setup(ev_ctx, msg_ctx)) { exit(1); } /* only start other daemons if we are running as a daemon * -- bad things will happen if smbd is launched via inetd * and we fork a copy of ourselves here */ if (is_daemon && !interactive) { if (rpc_lsasd_daemon() == RPC_DAEMON_FORK) { start_lsasd(ev_ctx, msg_ctx); } if (!_lp_disable_spoolss() && (rpc_spoolss_daemon() != RPC_DAEMON_DISABLED)) { bool bgq = lp_parm_bool(-1, "smbd", "backgroundqueue", true); if (!printing_subsystem_init(ev_ctx, msg_ctx, true, bgq)) { exit(1); } } } else if (!_lp_disable_spoolss() && (rpc_spoolss_daemon() != RPC_DAEMON_DISABLED)) { if (!printing_subsystem_init(ev_ctx, msg_ctx, false, false)) { exit(1); } } if (!is_daemon) { /* inetd mode */ TALLOC_FREE(frame); /* Started from inetd. fd 0 is the socket. */ /* We will abort gracefully when the client or remote system goes away */ smbd_server_conn->sock = dup(0); /* close our standard file descriptors */ if (!debug_get_output_is_stdout()) { close_low_fds(False); /* Don't close stderr */ } #ifdef HAVE_ATEXIT atexit(killkids); #endif /* Stop zombies */ smbd_setup_sig_chld_handler(ev_ctx); smbd_process(ev_ctx, smbd_server_conn); exit_server_cleanly(NULL); return(0); } parent = talloc_zero(ev_ctx, struct smbd_parent_context); if (!parent) { exit_server("talloc(struct smbd_parent_context) failed"); } parent->interactive = interactive; if (!open_sockets_smbd(parent, ev_ctx, msg_ctx, ports)) exit_server("open_sockets_smbd() failed"); /* do a printer update now that all messaging has been set up, * before we allow clients to start connecting */ printing_subsystem_update(ev_ctx, msg_ctx, false); TALLOC_FREE(frame); /* make sure we always have a valid stackframe */ frame = talloc_stackframe(); smbd_parent_loop(ev_ctx, parent); exit_server_cleanly(NULL); TALLOC_FREE(frame); return(0); }
static void smbd_accept_connection(struct tevent_context *ev, struct tevent_fd *fde, uint16_t flags, void *private_data) { struct smbd_open_socket *s = talloc_get_type_abort(private_data, struct smbd_open_socket); struct messaging_context *msg_ctx = s->msg_ctx; struct smbd_server_connection *sconn = msg_ctx_to_sconn(msg_ctx); struct sockaddr_storage addr; socklen_t in_addrlen = sizeof(addr); int fd; pid_t pid = 0; uint64_t unique_id; fd = accept(s->fd, (struct sockaddr *)(void *)&addr,&in_addrlen); sconn->sock = fd; if (fd == -1 && errno == EINTR) return; if (fd == -1) { DEBUG(0,("open_sockets_smbd: accept: %s\n", strerror(errno))); return; } if (s->parent->interactive) { smbd_process(ev, sconn); exit_server_cleanly("end of interactive mode"); return; } if (!allowable_number_of_smbd_processes()) { close(fd); sconn->sock = -1; return; } /* * Generate a unique id in the parent process so that we use * the global random state in the parent. */ generate_random_buffer((uint8_t *)&unique_id, sizeof(unique_id)); pid = sys_fork(); if (pid == 0) { NTSTATUS status = NT_STATUS_OK; /* Child code ... */ am_parent = 0; set_my_unique_id(unique_id); /* Stop zombies, the parent explicitly handles * them, counting worker smbds. */ CatchChild(); /* close our standard file descriptors */ if (!debug_get_output_is_stdout()) { close_low_fds(False); /* Don't close stderr */ } /* * Can't use TALLOC_FREE here. Nulling out the argument to it * would overwrite memory we've just freed. */ talloc_free(s->parent); s = NULL; status = reinit_after_fork(msg_ctx, ev, procid_self(), true); if (!NT_STATUS_IS_OK(status)) { if (NT_STATUS_EQUAL(status, NT_STATUS_TOO_MANY_OPENED_FILES)) { DEBUG(0,("child process cannot initialize " "because too many files are open\n")); goto exit; } if (lp_clustering() && NT_STATUS_EQUAL(status, NT_STATUS_INTERNAL_DB_ERROR)) { DEBUG(1,("child process cannot initialize " "because connection to CTDB " "has failed\n")); goto exit; } DEBUG(0,("reinit_after_fork() failed\n")); smb_panic("reinit_after_fork() failed"); } smbd_setup_sig_term_handler(); smbd_setup_sig_hup_handler(ev, msg_ctx); if (!serverid_register(procid_self(), FLAG_MSG_GENERAL|FLAG_MSG_SMBD |FLAG_MSG_DBWRAP |FLAG_MSG_PRINT_GENERAL)) { exit_server_cleanly("Could not register myself in " "serverid.tdb"); } smbd_process(ev, sconn); exit: exit_server_cleanly("end of child"); return; } if (pid < 0) { DEBUG(0,("smbd_accept_connection: sys_fork() failed: %s\n", strerror(errno))); } /* The parent doesn't need this socket */ close(fd); /* Sun May 6 18:56:14 2001 [email protected]: Clear the closed fd info out of server_fd -- and more importantly, out of client_fd in util_sock.c, to avoid a possible getpeername failure if we reopen the logs and use %I in the filename. */ sconn->sock = -1; if (pid != 0) { add_child_pid(pid); } /* Force parent to check log size after * spawning child. Fix from * [email protected]. The * parent smbd will log to logserver.smb. It * writes only two messages for each child * started/finished. But each child writes, * say, 50 messages also in logserver.smb, * begining with the debug_count of the * parent, before the child opens its own log * file logserver.client. In a worst case * scenario the size of logserver.smb would be * checked after about 50*50=2500 messages * (ca. 100kb). * */ force_check_log_size(); }
void become_daemon(bool Fork) { pid_t pid, cpid; int status; int ret, error; if (Fork) { pid = fork(); if (pid != 0) { /* Terminate parent process on demand so we can hold systemd * or initd from starting next service until sssd in initialized. * We use signals directly here because we don't have a tevent * context yet. */ CatchSignal(SIGTERM, deamon_parent_sigterm); /* or exit when sssd monitor is terminated */ do { errno = 0; cpid = waitpid(pid, &status, 0); if (cpid == 1) { /* An error occurred while waiting */ error = errno; if (error != EINTR) { DEBUG(SSSDBG_CRIT_FAILURE, "Error [%d][%s] while waiting for child\n", error, strerror(error)); /* Forcibly kill this child */ kill(pid, SIGKILL); ret = 1; } } error = 0; /* return error if we didn't exited normally */ ret = 1; if (WIFEXITED(status)) { /* but return our exit code otherwise */ ret = WEXITSTATUS(status); } } while (error == EINTR); _exit(ret); } } /* detach from the terminal */ setsid(); /* chdir to / to be sure we're not on a remote filesystem */ errno = 0; if(chdir("/") == -1) { ret = errno; DEBUG(SSSDBG_FATAL_FAILURE, "Cannot change directory (%d [%s])\n", ret, strerror(ret)); return; } /* Close fd's 0,1,2. Needed if started by rsh */ close_low_fds(); }
void start_spoolssd(struct tevent_context *ev_ctx, struct messaging_context *msg_ctx) { struct rpc_srv_callbacks spoolss_cb; pid_t pid; NTSTATUS status; int ret; DEBUG(1, ("Forking SPOOLSS Daemon\n")); pid = sys_fork(); if (pid == -1) { DEBUG(0, ("Failed to fork SPOOLSS [%s], aborting ...\n", strerror(errno))); exit(1); } if (pid) { /* parent */ return; } /* child */ close_low_fds(false); status = reinit_after_fork(msg_ctx, ev_ctx, procid_self(), true); if (!NT_STATUS_IS_OK(status)) { DEBUG(0,("reinit_after_fork() failed\n")); smb_panic("reinit_after_fork() failed"); } spoolss_reopen_logs(); spoolss_setup_sig_term_handler(ev_ctx); spoolss_setup_sig_hup_handler(ev_ctx, msg_ctx); if (!serverid_register(procid_self(), FLAG_MSG_GENERAL|FLAG_MSG_SMBD |FLAG_MSG_PRINT_GENERAL)) { exit(1); } if (!locking_init()) { exit(1); } messaging_register(msg_ctx, NULL, MSG_PRINTER_UPDATE, print_queue_receive); messaging_register(msg_ctx, ev_ctx, MSG_SMB_CONF_UPDATED, smb_conf_updated); /* * Initialize spoolss with an init function to convert printers first. * static_init_rpc will try to initialize the spoolss server too but you * can't register it twice. */ spoolss_cb.init = spoolss_init_cb; spoolss_cb.shutdown = spoolss_shutdown_cb; spoolss_cb.private_data = msg_ctx; status = rpc_winreg_init(NULL); if (!NT_STATUS_IS_OK(status)) { DEBUG(0, ("Failed to register winreg rpc inteface! (%s)\n", nt_errstr(status))); exit(1); } status = rpc_spoolss_init(&spoolss_cb); if (!NT_STATUS_IS_OK(status)) { DEBUG(0, ("Failed to register spoolss rpc inteface! (%s)\n", nt_errstr(status))); exit(1); } if (!setup_named_pipe_socket(SPOOLSS_PIPE_NAME, ev_ctx)) { exit(1); } status = rpc_ep_setup_register(ev_ctx, msg_ctx, &ndr_table_spoolss, NULL, 0); if (!NT_STATUS_IS_OK(status)) { DEBUG(0, ("Failed to register spoolss endpoint! (%s)\n", nt_errstr(status))); exit(1); } DEBUG(1, ("SPOOLSS Daemon Started (%d)\n", getpid())); /* loop forever */ ret = tevent_loop_wait(ev_ctx); /* should not be reached */ DEBUG(0,("background_queue: tevent_loop_wait() exited with %d - %s\n", ret, (ret == 0) ? "out of events" : strerror(errno))); exit(1); }
static BOOL open_sockets_smbd(BOOL is_daemon, BOOL interactive, const char *smb_ports) { int num_interfaces = iface_count(); int num_sockets = 0; int fd_listenset[FD_SETSIZE]; fd_set listen_set; int s; int maxfd = 0; int i; char *ports; if (!is_daemon) { return open_sockets_inetd(); } #ifdef HAVE_ATEXIT { static int atexit_set; if(atexit_set == 0) { atexit_set=1; atexit(killkids); } } #endif #ifndef _XBOX /* Stop zombies */ CatchChild(); #endif FD_ZERO(&listen_set); /* use a reasonable default set of ports - listing on 445 and 139 */ if (!smb_ports) { ports = lp_smb_ports(); if (!ports || !*ports) { ports = smb_xstrdup(SMB_PORTS); } else { ports = smb_xstrdup(ports); } } else { ports = smb_xstrdup(smb_ports); } if (lp_interfaces() && lp_bind_interfaces_only()) { /* We have been given an interfaces line, and been told to only bind to those interfaces. Create a socket per interface and bind to only these. */ /* Now open a listen socket for each of the interfaces. */ for(i = 0; i < num_interfaces; i++) { struct in_addr *ifip = iface_n_ip(i); fstring tok; const char *ptr; if(ifip == NULL) { DEBUG(0,("open_sockets_smbd: interface %d has NULL IP address !\n", i)); continue; } for (ptr=ports; next_token(&ptr, tok, " \t,", sizeof(tok)); ) { unsigned port = atoi(tok); if (port == 0) { continue; } s = fd_listenset[num_sockets] = open_socket_in(SOCK_STREAM, port, 0, ifip->s_addr, True); if(s == -1) return False; /* ready to listen */ set_socket_options(s,"SO_KEEPALIVE"); set_socket_options(s,user_socket_options); /* Set server socket to non-blocking for the accept. */ set_blocking(s,False); if (listen(s, SMBD_LISTEN_BACKLOG) == -1) { DEBUG(0,("listen: %s\n",strerror(errno))); close(s); return False; } FD_SET(s,&listen_set); maxfd = MAX( maxfd, s); num_sockets++; if (num_sockets >= FD_SETSIZE) { DEBUG(0,("open_sockets_smbd: Too many sockets to bind to\n")); return False; } } } } else { /* Just bind to 0.0.0.0 - accept connections from anywhere. */ fstring tok; const char *ptr; num_interfaces = 1; for (ptr=ports; next_token(&ptr, tok, " \t,", sizeof(tok)); ) { unsigned port = atoi(tok); if (port == 0) continue; /* open an incoming socket */ s = open_socket_in(SOCK_STREAM, port, 0, interpret_addr(lp_socket_address()),True); if (s == -1) return(False); /* ready to listen */ #ifndef _XBOX set_socket_options(s,"SO_KEEPALIVE"); #endif set_socket_options(s,user_socket_options); /* Set server socket to non-blocking for the accept. */ set_blocking(s,False); if (listen(s, SMBD_LISTEN_BACKLOG) == -1) { DEBUG(0,("open_sockets_smbd: listen: %s\n", strerror(errno))); close(s); return False; } fd_listenset[num_sockets] = s; FD_SET(s,&listen_set); maxfd = MAX( maxfd, s); num_sockets++; if (num_sockets >= FD_SETSIZE) { DEBUG(0,("open_sockets_smbd: Too many sockets to bind to\n")); return False; } } } SAFE_FREE(ports); /* Listen to messages */ message_register(MSG_SMB_SAM_SYNC, msg_sam_sync); message_register(MSG_SMB_SAM_REPL, msg_sam_repl); message_register(MSG_SHUTDOWN, msg_exit_server); message_register(MSG_SMB_FILE_RENAME, msg_file_was_renamed); message_register(MSG_SMB_CONF_UPDATED, smb_conf_updated); #ifdef DEVELOPER message_register(MSG_SMB_INJECT_FAULT, msg_inject_fault); #endif /* now accept incoming connections - forking a new process for each incoming connection */ DEBUG(2,("waiting for a connection\n")); while (1) { fd_set lfds; int num; /* Free up temporary memory from the main smbd. */ lp_TALLOC_FREE(); /* Ensure we respond to PING and DEBUG messages from the main smbd. */ message_dispatch(); memcpy((char *)&lfds, (char *)&listen_set, sizeof(listen_set)); num = sys_select(maxfd+1,&lfds,NULL,NULL,NULL); if (num == -1 && errno == EINTR) { if (got_sig_term) { exit_server_cleanly(NULL); } /* check for sighup processing */ if (reload_after_sighup) { change_to_root_user(); DEBUG(1,("Reloading services after SIGHUP\n")); reload_services(False); reload_after_sighup = 0; } continue; } /* check if we need to reload services */ check_reload(time(NULL)); /* Find the sockets that are read-ready - accept on these. */ for( ; num > 0; num--) { struct sockaddr addr; socklen_t in_addrlen = sizeof(addr); s = -1; for(i = 0; i < num_sockets; i++) { if(FD_ISSET(fd_listenset[i],&lfds)) { s = fd_listenset[i]; /* Clear this so we don't look at it again. */ FD_CLR(fd_listenset[i],&lfds); break; } } smbd_set_server_fd(accept(s,&addr,&in_addrlen)); if (smbd_server_fd() == -1 && errno == EINTR) continue; if (smbd_server_fd() == -1) { DEBUG(0,("open_sockets_smbd: accept: %s\n", strerror(errno))); continue; } /* Ensure child is set to blocking mode */ set_blocking(smbd_server_fd(),True); if (smbd_server_fd() != -1 && interactive) { #ifdef _XBOX xb_IncClientCount(); #endif return True; } if (allowable_number_of_smbd_processes() && smbd_server_fd() != -1 && sys_fork()==0) { /* Child code ... */ /* close the listening socket(s) */ for(i = 0; i < num_sockets; i++) close(fd_listenset[i]); /* close our standard file descriptors */ close_low_fds(False); am_parent = 0; set_socket_options(smbd_server_fd(),"SO_KEEPALIVE"); set_socket_options(smbd_server_fd(),user_socket_options); /* this is needed so that we get decent entries in smbstatus for port 445 connects */ set_remote_machine_name(get_peer_addr(smbd_server_fd()), False); /* Reset the state of the random * number generation system, so * children do not get the same random * numbers as each other */ set_need_random_reseed(); /* tdb needs special fork handling - remove CLEAR_IF_FIRST flags */ if (tdb_reopen_all(1) == -1) { DEBUG(0,("tdb_reopen_all failed.\n")); smb_panic("tdb_reopen_all failed."); } return True; } /* The parent doesn't need this socket */ close(smbd_server_fd()); /* Sun May 6 18:56:14 2001 [email protected]: Clear the closed fd info out of server_fd -- and more importantly, out of client_fd in util_sock.c, to avoid a possible getpeername failure if we reopen the logs and use %I in the filename. */ smbd_set_server_fd(-1); /* Force parent to check log size after * spawning child. Fix from * [email protected]. The * parent smbd will log to logserver.smb. It * writes only two messages for each child * started/finished. But each child writes, * say, 50 messages also in logserver.smb, * begining with the debug_count of the * parent, before the child opens its own log * file logserver.client. In a worst case * scenario the size of logserver.smb would be * checked after about 50*50=2500 messages * (ca. 100kb). * */ force_check_log_size(); } /* end for num */ } /* end while 1 */ /* NOTREACHED return True; */ }