static void terminate(bool is_parent)
{
	if (is_parent) {
		/* When parent goes away we should
		 * remove the socket file. Not so
		 * when children terminate.
		 */ 
		char *path = NULL;

		if (asprintf(&path, "%s/%s",
			get_winbind_pipe_dir(), WINBINDD_SOCKET_NAME) > 0) {
			unlink(path);
			SAFE_FREE(path);
		}
	}

	idmap_close();

	trustdom_cache_shutdown();

	gencache_stabilize();

#if 0
	if (interactive) {
		TALLOC_CTX *mem_ctx = talloc_init("end_description");
		char *description = talloc_describe_all(mem_ctx);

		DEBUG(3, ("tallocs left:\n%s\n", description));
		talloc_destroy(mem_ctx);
	}
#endif

	if (is_parent) {
		struct messaging_context *msg = winbind_messaging_context();
		struct server_id self = messaging_server_id(msg);
		serverid_deregister(self);
		pidfile_unlink(lp_piddir(), "winbindd");
	}

	exit(0);
}
示例#2
0
int main(int argc, char **argv)
{
	pstring logfile;
	static BOOL interactive = False;
	static BOOL Fork = True;
	static BOOL log_stdout = False;
	struct poptOption long_options[] = {
		POPT_AUTOHELP
		{ "stdout", 'S', POPT_ARG_VAL, &log_stdout, True, "Log to stdout" },
		{ "foreground", 'F', POPT_ARG_VAL, &Fork, False, "Daemon in foreground mode" },
		{ "interactive", 'i', POPT_ARG_NONE, NULL, 'i', "Interactive mode" },
		{ "single-daemon", 'Y', POPT_ARG_VAL, &opt_dual_daemon, False, "Single daemon mode" },
		{ "no-caching", 'n', POPT_ARG_VAL, &opt_nocache, True, "Disable caching" },
		POPT_COMMON_SAMBA
		POPT_TABLEEND
	};
	poptContext pc;
	int opt;

	/* glibc (?) likes to print "User defined signal 1" and exit if a
	   SIGUSR[12] is received before a handler is installed */

 	CatchSignal(SIGUSR1, SIG_IGN);
 	CatchSignal(SIGUSR2, SIG_IGN);

	fault_setup((void (*)(void *))fault_quit );

	/* Initialise for running in non-root mode */

	sec_init();

	set_remote_machine_name("winbindd", False);

	/* Set environment variable so we don't recursively call ourselves.
	   This may also be useful interactively. */

	setenv(WINBINDD_DONT_ENV, "1", 1);

	/* Initialise samba/rpc client stuff */

	pc = poptGetContext("winbindd", argc, (const char **)argv, long_options,
						POPT_CONTEXT_KEEP_FIRST);

	while ((opt = poptGetNextOpt(pc)) != -1) {
		switch (opt) {
			/* Don't become a daemon */
		case 'i':
			interactive = True;
			log_stdout = True;
			Fork = False;
			break;
		}
	}


	if (log_stdout && Fork) {
		printf("Can't log to stdout (-S) unless daemon is in foreground +(-F) or interactive (-i)\n");
		poptPrintUsage(pc, stderr, 0);
		exit(1);
	}

	pstr_sprintf(logfile, "%s/log.winbindd", dyn_LOGFILEBASE);
	lp_set_logfile(logfile);
	setup_logging("winbindd", log_stdout);
	reopen_logs();

	DEBUG(1, ("winbindd version %s started.\n", SAMBA_VERSION_STRING) );
	DEBUGADD( 1, ( "Copyright The Samba Team 2000-2004\n" ) );

	if (!reload_services_file()) {
		DEBUG(0, ("error opening config file\n"));
		exit(1);
	}

	/* Setup names. */

	if (!init_names())
		exit(1);

  	load_interfaces();

	if (!secrets_init()) {

		DEBUG(0,("Could not initialize domain trust account secrets. Giving up\n"));
		return False;
	}

	/* Enable netbios namecache */

	namecache_enable();

	/* Check winbindd parameters are valid */

	ZERO_STRUCT(server_state);

	/* Winbind daemon initialisation */

	if ( (!winbindd_param_init()) || (!winbindd_upgrade_idmap()) ||
	     (!idmap_init(lp_idmap_backend())) ) {
		DEBUG(1, ("Could not init idmap -- netlogon proxy only\n"));
		idmap_proxyonly();
	}

	generate_wellknown_sids();

	/* Unblock all signals we are interested in as they may have been
	   blocked by the parent process. */

	BlockSignals(False, SIGINT);
	BlockSignals(False, SIGQUIT);
	BlockSignals(False, SIGTERM);
	BlockSignals(False, SIGUSR1);
	BlockSignals(False, SIGUSR2);
	BlockSignals(False, SIGHUP);
	BlockSignals(False, SIGCHLD);

	/* Setup signal handlers */
	
	CatchSignal(SIGINT, termination_handler);      /* Exit on these sigs */
	CatchSignal(SIGQUIT, termination_handler);
	CatchSignal(SIGTERM, termination_handler);
	CatchSignal(SIGCHLD, sigchld_handler);

	CatchSignal(SIGPIPE, SIG_IGN);                 /* Ignore sigpipe */

	CatchSignal(SIGUSR2, sigusr2_handler);         /* Debugging sigs */
	CatchSignal(SIGHUP, sighup_handler);

	if (!interactive)
		become_daemon(Fork);

	pidfile_create("winbindd");

#if HAVE_SETPGID
	/*
	 * If we're interactive we want to set our own process group for
	 * signal management.
	 */
	if (interactive)
		setpgid( (pid_t)0, (pid_t)0);
#endif

	if (opt_dual_daemon) {
		do_dual_daemon();
	}

	/* Initialise messaging system */

	if (!message_init()) {
		DEBUG(0, ("unable to initialise messaging system\n"));
		exit(1);
	}
	
	/* React on 'smbcontrol winbindd reload-config' in the same way
	   as to SIGHUP signal */
	message_register(MSG_SMB_CONF_UPDATED, msg_reload_services);
	message_register(MSG_SHUTDOWN, msg_shutdown);
	
	poptFreeContext(pc);

	netsamlogon_cache_init(); /* Non-critical */
	
	init_domain_list();

	/* Loop waiting for requests */

	process_loop();

	trustdom_cache_shutdown();

	return 0;
}