예제 #1
0
static int
smbd_authsock_create(void)
{
	int sock = -1;

	sock = socket(AF_UNIX, SOCK_STREAM, 0);
	if (sock < 0) {
		smbd_report("authsvc, socket create failed, %d", errno);
		return (errno);
	}

	(void) unlink(smbauth_sockname.sun_path);
	if (bind(sock, (struct sockaddr *)&smbauth_sockname,
	    sizeof (smbauth_sockname)) < 0) {
		smbd_report("authsvc, socket bind failed, %d", errno);
		(void) close(sock);
		return (errno);
	}

	if (listen(sock, SOMAXCONN) < 0) {
		smbd_report("authsvc, socket listen failed, %d", errno);
		(void) close(sock);
		return (errno);
	}

	smbd.s_authsvc_sock = sock;
	return (0);
}
예제 #2
0
/*
 * Shutdown smbd and smbsrv kernel services.
 *
 * Called only by the main thread.
 */
static void
smbd_service_fini(void)
{

	smbd.s_shutting_down = B_TRUE;
	smbd_report("service shutting down");

	smb_kmod_stop();
	smb_logon_abort();
	smb_lgrp_stop();
	smbd_pipesvc_stop();
	smbd_door_stop();
	smbd_spool_stop();
	smbd_kernel_unbind();
	smbd_share_stop();
	smb_shr_stop();
	dyndns_stop();
	smbd_nicmon_stop();
	smb_ccache_remove(SMB_CCACHE_PATH);
	smb_pwd_fini();
	smb_domain_fini();
	mlsvc_fini();
	smb_netbios_stop();
	smbd_cups_fini();

	smbd.s_initialized = B_FALSE;
	smbd_report("service terminated");
	closelog();
}
예제 #3
0
/*
 * smbd_kernel_bind
 *
 * If smbsrv is already bound, reload the configuration and update smbsrv.
 * Otherwise, open the smbsrv device and start the kernel service.
 */
static int
smbd_kernel_bind(void)
{
	smb_kmod_cfg_t	cfg;
	int		rc;

	if (smbd.s_kbound) {
		smb_load_kconfig(&cfg);
		rc = smb_kmod_setcfg(&cfg);
		if (rc < 0)
			smbd_report("kernel configuration update failed: %s",
			    strerror(errno));
		return (rc);
	}

	if (smb_kmod_isbound())
		smbd_kernel_unbind();

	if ((rc = smb_kmod_bind()) == 0) {
		rc = smbd_kernel_start();
		if (rc != 0)
			smb_kmod_unbind();
		else
			smbd.s_kbound = B_TRUE;
	}

	if (rc != 0)
		smbd_report("kernel bind error: %s", strerror(errno));
	return (rc);
}
예제 #4
0
static int
smbd_kernel_start(void)
{
	smb_kmod_cfg_t	cfg;
	int		rc;

	smb_load_kconfig(&cfg);
	rc = smb_kmod_setcfg(&cfg);
	if (rc != 0) {
		smbd_report("kernel config ioctl error: %s", strerror(rc));
		return (rc);
	}

	rc = smb_kmod_setgmtoff(smbd_gmtoff());
	if (rc != 0) {
		smbd_report("kernel gmtoff ioctl error: %s", strerror(rc));
		return (rc);
	}

	rc = smb_kmod_start(smbd.s_door_opipe, smbd.s_door_lmshr,
	    smbd.s_door_srv);

	if (rc != 0) {
		smbd_report("kernel start ioctl error: %s", strerror(rc));
		return (rc);
	}

	return (0);
}
예제 #5
0
/*
 * We want to adjust a few things in the standard configuration
 * passed to the "fake" version of the smbsrv kernel module.
 *
 * Reduce the maximum number of connections and workers, just for
 * convenience while debugging.  (Don't want hundreds of threads.)
 */
static void
fksmbd_adjust_config(smb_ioc_header_t *ioc_hdr)
{
	smb_ioc_cfg_t *ioc = (smb_ioc_cfg_t *)ioc_hdr;
	char *s;

	ioc->maxconnections = 10;
	ioc->maxworkers = 20;
	smbd_report("maxconnections=%d, maxworkers=%d",
	    ioc->maxconnections, ioc->maxworkers);

	if ((s = getenv("SMB_MAX_PROTOCOL")) != NULL) {
		switch (s[0]) {
		case '1':
			ioc->max_protocol = SMB_VERS_1;
			break;
		case '2':
			ioc->max_protocol = SMB_VERS_2_1;
			break;
		case '3':
			ioc->max_protocol = SMB_VERS_3_0;
			break;
		default:
			smbd_report("env SMB_MAX_PROTOCOL invalid");
			break;
		}
	}
	smbd_report("max_protocol=0x%x", ioc->max_protocol);

	if ((s = getenv("SMB_SIGNING")) != NULL) {
		ioc->signing_enable = 0;
		ioc->signing_required = 0;
		switch (s[0]) {
		case 'e':
			ioc->signing_enable = 1;
			break;
		case 'r':
			ioc->signing_enable = 1;
			ioc->signing_required = 1;
			break;
		default:
			smbd_report("env SMB_SIGNING invalid");
			break;
		}
	}
	smbd_report("signing: enable=%d, required=%d",
	    ioc->signing_enable, ioc->signing_required);
}
예제 #6
0
/*
 * If the door has already been opened by another process (non-zero pid
 * in target), we assume that another smbd is already running.  If there
 * is a race here, it will be caught later when smbsrv is opened because
 * only one process is allowed to open the device at a time.
 */
static int
smbd_already_running(void)
{
	door_info_t	info;
	char 		*door_name;
	int		door;

	door_name = getenv("SMBD_DOOR_NAME");
	if (door_name == NULL)
		door_name = SMBD_DOOR_NAME;

	if ((door = open(door_name, O_RDONLY)) < 0)
		return (0);

	if (door_info(door, &info) < 0)
		return (0);

	if (info.di_target > 0) {
		smbd_report("already running: pid %ld\n", info.di_target);
		(void) close(door);
		return (1);
	}

	(void) close(door);
	return (0);
}
예제 #7
0
/*ARGSUSED*/
static void *
smbd_localtime_monitor(void *arg)
{
	struct tm local_tm;
	time_t secs;
	int32_t gmtoff, last_gmtoff = -1;
	int timeout;
	int error;

	smbd_online_wait("smbd_localtime_monitor");

	for (;;) {
		gmtoff = smbd_gmtoff();

		if ((last_gmtoff != gmtoff) && smbd.s_kbound) {
			error = smb_kmod_setgmtoff(gmtoff);
			if (error != 0)
				smbd_report("localtime set failed: %s",
				    strerror(error));
		}

		/*
		 * Align the next iteration on a fifteen minute boundary.
		 */
		secs = time(0);
		(void) localtime_r(&secs, &local_tm);
		timeout = ((15 - (local_tm.tm_min % 15)) * SECSPERMIN);
		(void) sleep(timeout);

		last_gmtoff = gmtoff;
	}

	/*NOTREACHED*/
	return (NULL);
}
예제 #8
0
/*
 * Shutdown smbd and smbsrv kernel services.
 *
 * Shutdown will not begin until initialization has completed.
 * Only one thread is allowed to perform the shutdown.  Other
 * threads will be blocked on fini_in_progress until the process
 * has exited.
 */
static void
smbd_service_fini(void)
{
	static uint_t	fini_in_progress;

	(void) mutex_lock(&smbd_service_mutex);

	while (!smbd.s_initialized)
		(void) cond_wait(&smbd_service_cv, &smbd_service_mutex);

	if (atomic_swap_uint(&fini_in_progress, 1) != 0) {
		while (fini_in_progress)
			(void) cond_wait(&smbd_service_cv, &smbd_service_mutex);
		/*NOTREACHED*/
	}

	smbd.s_shutting_down = B_TRUE;
	smbd_report("service shutting down");

	smb_kmod_stop();
	smb_logon_abort();
	smb_lgrp_stop();
	smbd_opipe_stop();
	smbd_door_stop();
	smbd_refresh_fini();
	smbd_kernel_unbind();
	smbd_share_stop();
	smb_shr_stop();
	dyndns_stop();
	smbd_nicmon_stop();
	smb_ccache_remove(SMB_CCACHE_PATH);
	smb_pwd_fini();
	smb_domain_fini();
	mlsvc_fini();
	smb_netbios_stop();
	smbd_cups_fini();

	smbd.s_initialized = B_FALSE;
	smbd_report("service terminated");
	(void) mutex_unlock(&smbd_service_mutex);
	exit((smbd.s_fatal_error) ? SMF_EXIT_ERR_FATAL : SMF_EXIT_OK);
}
예제 #9
0
/*
 * Called when SMF sends us a SIGHUP.  Update the smbd configuration
 * from SMF and check for changes that require service reconfiguration.
 */
static void
smbd_refresh_handler()
{
	int new_debug;

	if (smbd.s_shutting_down)
		return;

	smbd.s_refreshes++;

	new_debug = smb_config_get_debug();
	if (smbd.s_debug || new_debug)
		smbd_report("debug=%d", new_debug);
	smbd.s_debug = new_debug;

	smbd_spool_stop();
	smbd_dc_monitor_refresh();
	smb_ccache_remove(SMB_CCACHE_PATH);

	/*
	 * Clear the DNS zones for the existing interfaces
	 * before updating the NIC interface list.
	 */
	dyndns_clear_zones();

	if (smbd_nicmon_refresh() != 0)
		smbd_report("NIC monitor refresh failed");

	smb_netbios_name_reconfig();
	smb_browser_reconfig();
	dyndns_update_zones();

	/* This reloads the in-kernel config. */
	(void) smbd_kernel_bind();

	smbd_load_shares();
	smbd_load_printers();
	smbd_spool_start();
}
예제 #10
0
static void
smbd_authsvc_flood(void)
{
	static uint_t count;
	static time_t last_report;
	time_t now = time(NULL);

	count++;
	if (last_report + 60 < now) {
		last_report = now;
		smbd_report("authsvc: flooded %u", count);
		count = 0;
	}
}
예제 #11
0
/*
 * Launches a thread to populate the share cache by share information
 * stored in sharemgr
 */
static void
smbd_load_shares(void)
{
	pthread_t	tid;
	pthread_attr_t	attr;
	int		rc;

	(void) pthread_attr_init(&attr);
	(void) pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
	rc = pthread_create(&tid, &attr, smb_shr_load, NULL);
	(void) pthread_attr_destroy(&attr);

	if (rc != 0)
		smbd_report("unable to load disk shares: %s", strerror(errno));
}
예제 #12
0
static void
smbd_localtime_init(void)
{
	pthread_attr_t	attr;
	int		rc;

	(void) pthread_attr_init(&attr);
	(void) pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
	rc = pthread_create(&smbd.s_localtime_tid, &attr,
	    smbd_localtime_monitor, NULL);
	(void) pthread_attr_destroy(&attr);

	if (rc != 0)
		smbd_report("unable to monitor localtime: %s", strerror(errno));
}
예제 #13
0
/*ARGSUSED*/
static void *
smbd_refresh_monitor(void *arg)
{
	smbd_online_wait("smbd_refresh_monitor");

	while (!smbd.s_shutting_down) {
		(void) sleep(SMBD_REFRESH_INTERVAL);

		(void) pthread_mutex_lock(&refresh_mutex);
		while ((atomic_swap_uint(&smbd.s_refreshes, 0) == 0) &&
		    (!smbd.s_shutting_down))
			(void) pthread_cond_wait(&refresh_cond, &refresh_mutex);
		(void) pthread_mutex_unlock(&refresh_mutex);

		if (smbd.s_shutting_down) {
			smbd_service_fini();
			/*NOTREACHED*/
		}

		(void) mutex_lock(&smbd_service_mutex);

		smbd_dc_monitor_refresh();
		smb_ccache_remove(SMB_CCACHE_PATH);

		/*
		 * Clear the DNS zones for the existing interfaces
		 * before updating the NIC interface list.
		 */
		dyndns_clear_zones();

		if (smbd_nicmon_refresh() != 0)
			smbd_report("NIC monitor refresh failed");

		smb_netbios_name_reconfig();
		smb_browser_reconfig();
		dyndns_update_zones();
		(void) smbd_kernel_bind();
		smbd_load_shares();
		smbd_load_printers();

		(void) mutex_unlock(&smbd_service_mutex);
	}

	smbd.s_refresh_tid = 0;
	return (NULL);
}
예제 #14
0
/*
 * Create the Dynamic DNS publisher thread.
 */
static void
smbd_dyndns_init(void)
{
	pthread_t	tid;
	pthread_attr_t	attr;
	int		rc;

	dyndns_start();

	(void) pthread_attr_init(&attr);
	(void) pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
	rc = pthread_create(&tid, &attr, dyndns_publisher, NULL);
	(void) pthread_attr_destroy(&attr);

	if (rc != 0)
		smbd_report("unable to start dyndns publisher: %s",
		    strerror(errno));
}
예제 #15
0
/*
 * If the door has already been opened by another process (non-zero pid
 * in target), we assume that another smbd is already running.  If there
 * is a race here, it will be caught later when smbsrv is opened because
 * only one process is allowed to open the device at a time.
 */
static int
smbd_already_running(void)
{
	door_info_t info;
	int door;

	if ((door = open(SMBD_DOOR_NAME, O_RDONLY)) < 0)
		return (0);

	if (door_info(door, &info) < 0)
		return (0);

	if (info.di_target > 0) {
		smbd_report("already running: pid %ld\n", info.di_target);
		(void) close(door);
		return (1);
	}

	(void) close(door);
	return (0);
}
예제 #16
0
/*
 * smbd_refresh_init()
 *
 * SMB service refresh thread initialization.  This thread waits for a
 * refresh event and updates the daemon's view of the configuration
 * before going back to sleep.
 */
static int
smbd_refresh_init()
{
	pthread_attr_t		tattr;
	pthread_condattr_t	cattr;
	int			rc;

	(void) pthread_condattr_init(&cattr);
	(void) pthread_cond_init(&refresh_cond, &cattr);
	(void) pthread_condattr_destroy(&cattr);

	(void) pthread_mutex_init(&refresh_mutex, NULL);

	(void) pthread_attr_init(&tattr);
	(void) pthread_attr_setdetachstate(&tattr, PTHREAD_CREATE_DETACHED);
	rc = pthread_create(&smbd.s_refresh_tid, &tattr, smbd_refresh_monitor,
	    NULL);
	(void) pthread_attr_destroy(&tattr);

	if (rc != 0)
		smbd_report("unable to start refresh monitor: %s",
		    strerror(errno));
	return (rc);
}
예제 #17
0
/*
 * smbd_service_init
 */
static int
smbd_service_init(void)
{
	static struct dir {
		char	*name;
		int	perm;
	} dir[] = {
		{ SMB_DBDIR,	0700 },
		{ SMB_CVOL,	0755 },
		{ SMB_SYSROOT,	0755 },
		{ SMB_SYSTEM32,	0755 },
		{ SMB_VSS,	0755 },
		{ SMB_PIPE_DIR,	0755 },
	};
	int	rc, i;

	smbd.s_pid = getpid();

	/*
	 * Stop for a debugger attach here, which is after the
	 * fork() etc. in smb_daemonize_init()
	 */
	if (smbd.s_dbg_stop) {
		smbd_report("pid %d stop for debugger attach", smbd.s_pid);
		(void) kill(smbd.s_pid, SIGSTOP);
	}
	smbd_report("smbd starting, pid %d", smbd.s_pid);

	for (i = 0; i < sizeof (dir)/sizeof (dir[0]); ++i) {
		if ((mkdir(dir[i].name, dir[i].perm) < 0) &&
		    (errno != EEXIST)) {
			smbd_report("mkdir %s: %s", dir[i].name,
			    strerror(errno));
			return (-1);
		}
	}

	if ((rc = smb_ccache_init(SMB_VARRUN_DIR, SMB_CCACHE_FILE)) != 0) {
		if (rc == -1)
			smbd_report("mkdir %s: %s", SMB_VARRUN_DIR,
			    strerror(errno));
		else
			smbd_report("unable to set KRB5CCNAME");
		return (-1);
	}

	smb_codepage_init();

	rc = smbd_cups_init();
	if (smb_config_getbool(SMB_CI_PRINT_ENABLE))
		smbd_report("print service %savailable", (rc == 0) ? "" : "un");

	if (smbd_nicmon_start(SMBD_DEFAULT_INSTANCE_FMRI) != 0)
		smbd_report("NIC monitor failed to start");

	smbd_dyndns_init();
	smb_ipc_init();

	if (smb_config_getbool(SMB_CI_NETBIOS_ENABLE) == 0)
		smbd_report("NetBIOS services disabled");
	else if (smb_netbios_start() != 0)
		smbd_report("NetBIOS services failed to start");
	else
		smbd_report("NetBIOS services started");

	smbd.s_secmode = smb_config_get_secmode();
	if ((rc = smb_domain_init(smbd.s_secmode)) != 0) {
		if (rc == SMB_DOMAIN_NOMACHINE_SID) {
			smbd_report(
			    "no machine SID: check idmap configuration");
			return (-1);
		}
	}

	if (smbd_dc_monitor_init() != 0)
		smbd_report("DC monitor initialization failed %s",
		    strerror(errno));

	if (smbd_pipesvc_start() != 0) {
		smbd_report("pipesvc initialization failed");
		return (-1);
	}

	smbd.s_door_srv = smbd_door_start();
	if (smbd.s_door_srv < 0) {
		smbd_report("door initialization failed %s", strerror(errno));
		return (-1);
	}

	dyndns_update_zones();
	smbd_localtime_init();
	(void) smb_lgrp_start();
	smb_pwd_init(B_TRUE);

	if (smb_shr_start() != 0) {
		smbd_report("share initialization failed: %s", strerror(errno));
		return (-1);
	}

	smbd.s_door_lmshr = smbd_share_start();
	if (smbd.s_door_lmshr < 0)
		smbd_report("share initialization failed");

	/* Open the driver, load the kernel config. */
	if (smbd_kernel_bind() != 0) {
		return (-1);
	}

	smbd_load_shares();
	smbd_load_printers();
	smbd_spool_start();

	smbd.s_initialized = B_TRUE;
	smbd_report("service initialized");

	return (0);
}
예제 #18
0
/*
 * smbd_service_init
 */
static int
smbd_service_init(void)
{
	static struct dir {
		char	*name;
		int	perm;
	} dir[] = {
		{ SMB_DBDIR,	0700 },
		{ SMB_CVOL,	0755 },
		{ SMB_SYSROOT,	0755 },
		{ SMB_SYSTEM32,	0755 },
		{ SMB_VSS,	0755 }
	};
	int	rc, i;

	(void) mutex_lock(&smbd_service_mutex);

	smbd.s_pid = getpid();
	for (i = 0; i < sizeof (dir)/sizeof (dir[0]); ++i) {
		if ((mkdir(dir[i].name, dir[i].perm) < 0) &&
		    (errno != EEXIST)) {
			smbd_report("mkdir %s: %s", dir[i].name,
			    strerror(errno));
			(void) mutex_unlock(&smbd_service_mutex);
			return (-1);
		}
	}

	if ((rc = smb_ccache_init(SMB_VARRUN_DIR, SMB_CCACHE_FILE)) != 0) {
		if (rc == -1)
			smbd_report("mkdir %s: %s", SMB_VARRUN_DIR,
			    strerror(errno));
		else
			smbd_report("unable to set KRB5CCNAME");
		(void) mutex_unlock(&smbd_service_mutex);
		return (-1);
	}

	smbd.s_loghd = smb_log_create(SMBD_LOGSIZE, SMBD_LOGNAME);
	smb_codepage_init();

	rc = smbd_cups_init();
	if (smb_config_getbool(SMB_CI_PRINT_ENABLE))
		smbd_report("print service %savailable", (rc == 0) ? "" : "un");

	if (smbd_nicmon_start(SMBD_DEFAULT_INSTANCE_FMRI) != 0)
		smbd_report("NIC monitor failed to start");

	smbd_dyndns_init();
	smb_ipc_init();

	if (smb_netbios_start() != 0)
		smbd_report("NetBIOS services failed to start");
	else
		smbd_report("NetBIOS services started");

	smbd.s_secmode = smb_config_get_secmode();
	if ((rc = smb_domain_init(smbd.s_secmode)) != 0) {
		if (rc == SMB_DOMAIN_NOMACHINE_SID) {
			smbd_report(
			    "no machine SID: check idmap configuration");
			(void) mutex_unlock(&smbd_service_mutex);
			return (-1);
		}
	}

	if (smbd_dc_monitor_init() != 0)
		smbd_report("DC monitor initialization failed %s",
		    strerror(errno));

	if (mlsvc_init() != 0) {
		smbd_report("msrpc initialization failed");
		(void) mutex_unlock(&smbd_service_mutex);
		return (-1);
	}

	smbd.s_door_srv = smbd_door_start();
	smbd.s_door_opipe = smbd_opipe_start();
	if (smbd.s_door_srv < 0 || smbd.s_door_opipe < 0) {
		smbd_report("door initialization failed %s", strerror(errno));
		(void) mutex_unlock(&smbd_service_mutex);
		return (-1);
	}

	if (smbd_refresh_init() != 0) {
		(void) mutex_unlock(&smbd_service_mutex);
		return (-1);
	}

	dyndns_update_zones();
	smbd_localtime_init();
	(void) smb_lgrp_start();
	smb_pwd_init(B_TRUE);

	if (smb_shr_start() != 0) {
		smbd_report("share initialization failed: %s", strerror(errno));
		(void) mutex_unlock(&smbd_service_mutex);
		return (-1);
	}

	smbd.s_door_lmshr = smbd_share_start();
	if (smbd.s_door_lmshr < 0)
		smbd_report("share initialization failed");

	if (smbd_kernel_bind() != 0) {
		(void) mutex_unlock(&smbd_service_mutex);
		return (-1);
	}

	smbd_load_shares();
	smbd_load_printers();

	smbd.s_initialized = B_TRUE;
	smbd_report("service initialized");
	(void) cond_signal(&smbd_service_cv);
	(void) mutex_unlock(&smbd_service_mutex);
	return (0);
}
예제 #19
0
/*
 * This function will fork off a child process,
 * from which only the child will return.
 *
 * Use SMF error codes only on exit.
 */
static int
smbd_daemonize_init(void)
{
	int status, pfds[2];
	sigset_t set, oset;
	pid_t pid;
	int rc;

	/*
	 * Reset privileges to the minimum set required. We continue
	 * to run as root to create and access files in /var.
	 */
	rc = smb_init_daemon_priv(PU_RESETGROUPS, smbd.s_uid, smbd.s_gid);

	if (rc != 0) {
		smbd_report("insufficient privileges");
		exit(SMF_EXIT_ERR_FATAL);
	}

	/*
	 * Block all signals prior to the fork and leave them blocked in the
	 * parent so we don't get in a situation where the parent gets SIGINT
	 * and returns non-zero exit status and the child is actually running.
	 * In the child, restore the signal mask once we've done our setsid().
	 */
	(void) sigfillset(&set);
	(void) sigdelset(&set, SIGABRT);
	(void) sigprocmask(SIG_BLOCK, &set, &oset);

	if (pipe(pfds) == -1) {
		smbd_report("unable to create pipe");
		exit(SMF_EXIT_ERR_FATAL);
	}

	closelog();

	if ((pid = fork()) == -1) {
		openlog(smbd.s_pname, LOG_PID | LOG_NOWAIT, LOG_DAEMON);
		smbd_report("unable to fork");
		closelog();
		exit(SMF_EXIT_ERR_FATAL);
	}

	/*
	 * If we're the parent process, wait for either the child to send us
	 * the appropriate exit status over the pipe or for the read to fail
	 * (presumably with 0 for EOF if our child terminated abnormally).
	 * If the read fails, exit with either the child's exit status if it
	 * exited or with SMF_EXIT_ERR_FATAL if it died from a fatal signal.
	 */
	if (pid != 0) {
		(void) close(pfds[1]);

		if (read(pfds[0], &status, sizeof (status)) == sizeof (status))
			_exit(status);

		if (waitpid(pid, &status, 0) == pid && WIFEXITED(status))
			_exit(WEXITSTATUS(status));

		_exit(SMF_EXIT_ERR_FATAL);
	}

	openlog(smbd.s_pname, LOG_PID | LOG_NOWAIT, LOG_DAEMON);
	(void) setsid();
	(void) sigprocmask(SIG_SETMASK, &oset, NULL);
	(void) chdir("/");
	(void) umask(022);
	(void) close(pfds[0]);

	return (pfds[1]);
}
예제 #20
0
/*
 * Use SMF error codes only on return or exit.
 */
int
main(int argc, char *argv[])
{
	struct sigaction	act;
	sigset_t		set;
	uid_t			uid;
	int			pfd = -1;
	uint_t			sigval;
	struct rlimit		rl;
	int			orig_limit;

	smbd.s_pname = basename(argv[0]);
	openlog(smbd.s_pname, LOG_PID | LOG_NOWAIT, LOG_DAEMON);

	if (smbd_setup_options(argc, argv) != 0)
		return (SMF_EXIT_ERR_FATAL);

	if ((uid = getuid()) != smbd.s_uid) {
		smbd_report("user %d: %s", uid, strerror(EPERM));
		return (SMF_EXIT_ERR_FATAL);
	}

	if (getzoneid() != GLOBAL_ZONEID) {
		smbd_report("non-global zones are not supported");
		return (SMF_EXIT_ERR_FATAL);
	}

	if (is_system_labeled()) {
		smbd_report("Trusted Extensions not supported");
		return (SMF_EXIT_ERR_FATAL);
	}

	if (smbd_already_running())
		return (SMF_EXIT_OK);

	/*
	 * Raise the file descriptor limit to accommodate simultaneous user
	 * authentications/file access.
	 */
	if ((getrlimit(RLIMIT_NOFILE, &rl) == 0) &&
	    (rl.rlim_cur < rl.rlim_max)) {
		orig_limit = rl.rlim_cur;
		rl.rlim_cur = rl.rlim_max;
		if (setrlimit(RLIMIT_NOFILE, &rl) != 0)
			smbd_report("Failed to raise file descriptor limit"
			    " from %d to %d", orig_limit, rl.rlim_cur);
	}

	(void) sigfillset(&set);
	(void) sigdelset(&set, SIGABRT);

	(void) sigfillset(&act.sa_mask);
	act.sa_handler = smbd_sig_handler;
	act.sa_flags = 0;

	(void) sigaction(SIGABRT, &act, NULL);
	(void) sigaction(SIGTERM, &act, NULL);
	(void) sigaction(SIGHUP, &act, NULL);
	(void) sigaction(SIGINT, &act, NULL);
	(void) sigaction(SIGPIPE, &act, NULL);
	(void) sigaction(SIGUSR1, &act, NULL);

	(void) sigdelset(&set, SIGTERM);
	(void) sigdelset(&set, SIGHUP);
	(void) sigdelset(&set, SIGINT);
	(void) sigdelset(&set, SIGPIPE);
	(void) sigdelset(&set, SIGUSR1);

	if (smbd.s_fg) {
		(void) sigdelset(&set, SIGTSTP);
		(void) sigdelset(&set, SIGTTIN);
		(void) sigdelset(&set, SIGTTOU);

		if (smbd_service_init() != 0) {
			smbd_report("service initialization failed");
			exit(SMF_EXIT_ERR_FATAL);
		}
	} else {
		/*
		 * "pfd" is a pipe descriptor -- any fatal errors
		 * during subsequent initialization of the child
		 * process should be written to this pipe and the
		 * parent will report this error as the exit status.
		 */
		pfd = smbd_daemonize_init();

		if (smbd_service_init() != 0) {
			smbd_report("daemon initialization failed");
			exit(SMF_EXIT_ERR_FATAL);
		}

		smbd_daemonize_fini(pfd, SMF_EXIT_OK);
	}

	(void) atexit(smb_kmod_stop);

	while (!smbd.s_shutting_down) {
		if (smbd.s_sigval == 0 && smbd.s_refreshes == 0)
			(void) sigsuspend(&set);

		sigval = atomic_swap_uint(&smbd.s_sigval, 0);

		switch (sigval) {
		case 0:
		case SIGPIPE:
		case SIGABRT:
			break;

		case SIGHUP:
			syslog(LOG_DEBUG, "refresh requested");
			(void) pthread_cond_signal(&refresh_cond);
			break;

		case SIGUSR1:
			smb_log_dumpall();
			break;

		default:
			/*
			 * Typically SIGINT or SIGTERM.
			 */
			smbd.s_shutting_down = B_TRUE;
			break;
		}
	}

	smbd_service_fini();
	closelog();
	return ((smbd.s_fatal_error) ? SMF_EXIT_ERR_FATAL : SMF_EXIT_OK);
}
예제 #21
0
krb5_error_code
_krb5_override_service_locator(
    void *arg0,
    enum locate_service_type svc,
    const char *realm,
    int socktype,
    int family,
    int (*cbfunc)(void *, int, struct sockaddr *),
    void *cbdata)
{
	_NOTE(ARGUNUSED(arg0))
	smb_domainex_t dxi;
	int rc = KRB5_PLUGIN_NO_HANDLE;
	short port;

	/*
	 * Is this a service we want to override?
	 */
	switch (svc) {
	case locate_service_kdc:
	case locate_service_master_kdc:
		port = htons(KRB5_DEFAULT_PORT);
		break;
	case locate_service_kadmin:
		port = htons(DEFAULT_KADM5_PORT);
		break;
	case locate_service_kpasswd:
		port = htons(DEFAULT_KPASSWD_PORT);
		break;
	case locate_service_krb524:
	default:
		return (rc);
	}

	/*
	 * What's my domain?  Note: have to get this in a way
	 * that works while join domain is underway.
	 */
	if (!smb_domain_getinfo(&dxi)) {
		smbd_report("_krb5_override_service_locator "
		    "failed getting domain info");
		return (KRB5_ERR_HOST_REALM_UNKNOWN);
	}

	/*
	 * Is this a realm we want to override?
	 */
	if (0 != strcasecmp(realm, dxi.d_primary.di_fqname)) {
		syslog(LOG_DEBUG, "_krb5_override_service_locator, "
		    "realm=%s, fqdn=%s", realm, dxi.d_primary.di_fqname);
		return (rc);
	}

	/*
	 * Yes, this is our domain.  Have a DC?
	 */
	if (dxi.d_dci.dc_name[0] == '\0' ||
	    dxi.d_dci.dc_addr.a_family == 0)
		return (KRB5_REALM_CANT_RESOLVE);

	switch (family) {
	case AF_UNSPEC:
		break;	/* OK */
	case AF_INET:
	case AF_INET6:
		if (family == dxi.d_dci.dc_addr.a_family)
			break;	/* OK */
		/* else fallthrough */
	default:
		return (KRB5_ERR_NO_SERVICE);
	}

	/*
	 * Provide the service address we have.
	 */
	switch (dxi.d_dci.dc_addr.a_family) {
	case AF_INET: {
		struct sockaddr_in sin;
		(void) memset(&sin, 0, sizeof (sin));
		sin.sin_family = AF_INET;
		sin.sin_port = port;
		(void) memcpy(&sin.sin_addr, &dxi.d_dci.dc_addr.a_ipv4,
		    sizeof (sin.sin_addr));
		rc = cbfunc(cbdata, socktype, (struct sockaddr *)&sin);
		/* rc from cbfunc is special. */
		if (rc)
			rc = ENOMEM;
		break;
	}
	case AF_INET6: {
		struct sockaddr_in6 sin6;
		(void) memset(&sin6, 0, sizeof (sin6));
		sin6.sin6_family = AF_INET6;
		sin6.sin6_port = port;
		(void) memcpy(&sin6.sin6_addr, &dxi.d_dci.dc_addr.a_ipv6,
		    sizeof (sin6.sin6_addr));
		rc = cbfunc(cbdata, socktype, (struct sockaddr *)&sin6);
		/* rc from cbfunc is special. */
		if (rc)
			rc = ENOMEM;
		break;
	}
	default:
		rc = KRB5_ERR_NO_SERVICE;
		break;
	}

	return (rc);
}
예제 #22
0
static void *
smbd_authsvc_work(void *arg)
{
	authsvc_context_t *ctx = arg;
	smb_lsa_msg_hdr_t	hdr;
	int sock = ctx->ctx_socket;
	int len, rc;

	if (setsockopt(sock, SOL_SOCKET, SO_SNDTIMEO,
	    (char *)&send_tmo,  sizeof (send_tmo)) != 0) {
		smbd_report("authsvc_work: set set timeout: %m");
		goto out;
	}

	if (setsockopt(sock, SOL_SOCKET, SO_RCVTIMEO,
	    (char *)&recv_tmo,  sizeof (recv_tmo)) != 0) {
		smbd_report("authsvc_work: set recv timeout: %m");
		goto out;
	}

	for (;;) {

		len = recv(sock, &hdr, sizeof (hdr), MSG_WAITALL);
		if (len <= 0) {
			/* normal termination */
			break;
		}
		if (len != sizeof (hdr)) {
			smbd_report("authsvc_work: read header failed");
			break;
		}

		if (hdr.lmh_msglen > smbd_authsvc_bufsize) {
			smbd_report("authsvc_work: msg too large");
			break;
		}

		if (hdr.lmh_msglen > 0) {
			len = recv(sock, ctx->ctx_irawbuf, hdr.lmh_msglen,
			    MSG_WAITALL);
			if (len != hdr.lmh_msglen) {
				smbd_report("authsvc_work: read mesg failed");
				break;
			}
		}
		ctx->ctx_irawtype = hdr.lmh_msgtype;
		ctx->ctx_irawlen = hdr.lmh_msglen;
		ctx->ctx_orawlen = smbd_authsvc_bufsize;
		ctx->ctx_ibodylen = smbd_authsvc_bufsize;
		ctx->ctx_obodylen = smbd_authsvc_bufsize;

		/*
		 * The real work happens here.
		 */
		rc = smbd_authsvc_dispatch(ctx);
		if (rc)
			break;

		hdr.lmh_msgtype = ctx->ctx_orawtype;
		hdr.lmh_msglen = ctx->ctx_orawlen;
		len = send(sock, &hdr, sizeof (hdr), 0);
		if (len != sizeof (hdr)) {
			smbd_report("authsvc_work: send failed");
			break;
		}

		if (ctx->ctx_orawlen > 0) {
			len = send(sock, ctx->ctx_orawbuf,
			    ctx->ctx_orawlen, 0);
			if (len != ctx->ctx_orawlen) {
				smbd_report("authsvc_work: send failed");
				break;
			}
		}
	}

out:
	if (ctx->ctx_mh_fini)
		(ctx->ctx_mh_fini)(ctx);

	smbd_authctx_destroy(ctx);

	(void) mutex_lock(&smbd_authsvc_mutex);
	smbd_authsvc_thrcnt--;
	(void) mutex_unlock(&smbd_authsvc_mutex);

	return (NULL);	/* implied pthread_exit() */
}
예제 #23
0
static void *
smbd_authsvc_listen(void *arg)
{
	authsvc_context_t *ctx;
	pthread_attr_t	attr;
	pthread_t	tid;
	socklen_t	slen;
	int		ls, ns, rc;

	_NOTE(ARGUNUSED(arg))

	(void) pthread_attr_init(&attr);
	(void) pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);

	ls = smbd.s_authsvc_sock;
	for (;;) {

		slen = 0;
		ns = accept(ls, NULL, &slen);
		if (ns < 0) {
			switch (errno) {
			case ECONNABORTED:
				continue;
			case EINTR:
				/* normal termination */
				goto out;
			default:
				smbd_report("authsvc, socket accept failed,"
				    " %d", errno);
				goto out;
			}
		}

		/*
		 * Limit the number of auth. sockets
		 * (and the threads that service them).
		 */
		(void) mutex_lock(&smbd_authsvc_mutex);
		if (smbd_authsvc_thrcnt >= smbd_authsvc_maxthread) {
			(void) mutex_unlock(&smbd_authsvc_mutex);
			(void) close(ns);
			smbd_authsvc_flood();
			continue;
		}
		smbd_authsvc_thrcnt++;
		if (smbd_authsvc_hiwat < smbd_authsvc_thrcnt)
			smbd_authsvc_hiwat = smbd_authsvc_thrcnt;
		(void) mutex_unlock(&smbd_authsvc_mutex);

		ctx = smbd_authctx_create();
		if (ctx == NULL) {
			smbd_report("authsvc, can't allocate context");
			(void) mutex_lock(&smbd_authsvc_mutex);
			smbd_authsvc_thrcnt--;
			(void) mutex_unlock(&smbd_authsvc_mutex);
			(void) close(ns);
			goto out;
		}
		ctx->ctx_socket = ns;

		rc = pthread_create(&tid, &attr, smbd_authsvc_work, ctx);
		if (rc) {
			smbd_report("authsvc, thread create failed, %d", rc);
			(void) mutex_lock(&smbd_authsvc_mutex);
			smbd_authsvc_thrcnt--;
			(void) mutex_unlock(&smbd_authsvc_mutex);
			smbd_authctx_destroy(ctx);
			goto out;
		}
		ctx = NULL; /* given to the new thread */
	}

out:
	(void) pthread_attr_destroy(&attr);
	smbd_authsock_destroy();
	return (NULL);
}
예제 #24
0
/*
 * Handle a security blob we've received from the client.
 * Incoming type: LSA_MTYPE_ESFIRST
 * Outgoing types: LSA_MTYPE_ES_CONT, LSA_MTYPE_ES_DONE,
 *   LSA_MTYPE_ERROR
 */
static int
smbd_authsvc_esfirst(authsvc_context_t *ctx)
{
	const spnego_mech_handler_t *mh;
	int idx, pref, rc;
	int best_pref = 1000;
	int best_mhidx = -1;

	/*
	 * NTLMSSP header is 8+, SPNEGO is 10+
	 */
	if (ctx->ctx_irawlen < 8) {
		smbd_report("authsvc: short blob");
		return (NT_STATUS_INVALID_PARAMETER);
	}

	/*
	 * We could have "Raw NTLMSSP" here intead of SPNEGO.
	 */
	if (bcmp(ctx->ctx_irawbuf, "NTLMSSP", 8) == 0) {
		rc = smbd_raw_ntlmssp_esfirst(ctx);
		return (rc);
	}

	/*
	 * Parse the SPNEGO token, check its type.
	 */
	rc = spnegoInitFromBinary(ctx->ctx_irawbuf,
	    ctx->ctx_irawlen, &ctx->ctx_itoken);
	if (rc != 0) {
		smbd_report("authsvc: spnego parse failed");
		return (NT_STATUS_INVALID_PARAMETER);
	}

	rc = spnegoGetTokenType(ctx->ctx_itoken, &ctx->ctx_itoktype);
	if (rc != 0) {
		smbd_report("authsvc: spnego get token type failed");
		return (NT_STATUS_INVALID_PARAMETER);
	}

	if (ctx->ctx_itoktype != SPNEGO_TOKEN_INIT) {
		smbd_report("authsvc: spnego wrong token type %d",
		    ctx->ctx_itoktype);
		return (NT_STATUS_INVALID_PARAMETER);
	}

	/*
	 * Figure out which mech type to use.  We want to use the
	 * first of the client's supported mechanisms that we also
	 * support.  Unfortunately, the spnego code does not have an
	 * interface to walk the token's mech list, so we have to
	 * ask about each mech type we know and keep track of which
	 * was earliest in the token's mech list.
	 *
	 * Also, skip the Kerberos mechanisms in workgroup mode.
	 */
	idx = 0;
	mh = mech_table;
	if (smb_config_get_secmode() != SMB_SECMODE_DOMAIN) {
		idx = MECH_TBL_IDX_NTLMSSP;
		mh = &mech_table[idx];
	}
	for (; mh->mh_init != NULL; idx++, mh++) {

		if (spnegoIsMechTypeAvailable(ctx->ctx_itoken,
		    mh->mh_oid, &pref) != 0)
			continue;

		if (pref < best_pref) {
			best_pref = pref;
			best_mhidx = idx;
		}
	}
	if (best_mhidx == -1) {
		smbd_report("authsvc: no supported spnego mechanism");
		return (NT_STATUS_INVALID_PARAMETER);
	}

	/* Found a mutually agreeable mech. */
	mh = &mech_table[best_mhidx];
	ctx->ctx_mech_oid = mh->mh_oid;
	ctx->ctx_mh_work = mh->mh_work;
	ctx->ctx_mh_fini = mh->mh_fini;
	rc = mh->mh_init(ctx);
	if (rc != 0) {
		smbd_report("authsvc: mech init failed");
		return (rc);
	}

	/*
	 * Common to LSA_MTYPE_ESFIRST, LSA_MTYPE_ESNEXT
	 */
	rc = smbd_authsvc_escmn(ctx);
	return (rc);
}
예제 #25
0
/*
 * Use SMF error codes only on return or exit.
 */
int
main(int argc, char *argv[])
{
	sigset_t		set;
	uid_t			uid;
	int			pfd = -1;
	int			sigval;
	struct rlimit		rl;
	int			orig_limit;

#ifdef	FKSMBD
	fksmbd_init();
#endif
	smbd.s_pname = basename(argv[0]);
	openlog(smbd.s_pname, LOG_PID | LOG_NOWAIT, LOG_DAEMON);

	if (smbd_setup_options(argc, argv) != 0)
		return (SMF_EXIT_ERR_FATAL);

	if ((uid = getuid()) != smbd.s_uid) {
#ifdef	FKSMBD
		/* Can't manipulate privileges in daemonize. */
		if (smbd.s_fg == 0) {
			smbd.s_fg = 1;
			smbd_report("user %d (forced -f)", uid);
		}
#else	/* FKSMBD */
		smbd_report("user %d: %s", uid, strerror(EPERM));
		return (SMF_EXIT_ERR_FATAL);
#endif	/* FKSMBD */
	}

	if (is_system_labeled()) {
		smbd_report("Trusted Extensions not supported");
		return (SMF_EXIT_ERR_FATAL);
	}

	if (smbd_already_running())
		return (SMF_EXIT_OK);

	/*
	 * Raise the file descriptor limit to accommodate simultaneous user
	 * authentications/file access.
	 */
	if ((getrlimit(RLIMIT_NOFILE, &rl) == 0) &&
	    (rl.rlim_cur < rl.rlim_max)) {
		orig_limit = rl.rlim_cur;
		rl.rlim_cur = rl.rlim_max;
		if (setrlimit(RLIMIT_NOFILE, &rl) != 0)
			smbd_report("Failed to raise file descriptor limit"
			    " from %d to %d", orig_limit, rl.rlim_cur);
	}

	/*
	 * Block async signals in all threads.
	 */
	(void) sigemptyset(&set);

	(void) sigaddset(&set, SIGHUP);
	(void) sigaddset(&set, SIGINT);
	(void) sigaddset(&set, SIGQUIT);
	(void) sigaddset(&set, SIGPIPE);
	(void) sigaddset(&set, SIGTERM);
	(void) sigaddset(&set, SIGUSR1);
	(void) sigaddset(&set, SIGUSR2);

	(void) sigprocmask(SIG_SETMASK, &set, NULL);

	if (smbd.s_fg) {
		if (smbd_service_init() != 0) {
			smbd_report("service initialization failed");
			exit(SMF_EXIT_ERR_FATAL);
		}
	} else {
		/*
		 * "pfd" is a pipe descriptor -- any fatal errors
		 * during subsequent initialization of the child
		 * process should be written to this pipe and the
		 * parent will report this error as the exit status.
		 */
		pfd = smbd_daemonize_init();

		if (smbd_service_init() != 0) {
			smbd_report("daemon initialization failed");
			exit(SMF_EXIT_ERR_FATAL);
		}

		smbd_daemonize_fini(pfd, SMF_EXIT_OK);
	}

	while (!smbd.s_shutting_down) {
		sigval = sigwait(&set);

		switch (sigval) {
		case -1:
			syslog(LOG_DEBUG, "sigwait failed: %s",
			    strerror(errno));
			break;
		case SIGPIPE:
			break;

		case SIGHUP:
			syslog(LOG_DEBUG, "refresh requested");
			smbd_refresh_handler();
			break;

		case SIGUSR1:
			syslog(LOG_DEBUG, "SIGUSR1 ignored");
			break;

		default:
			/*
			 * Typically SIGINT or SIGTERM.
			 */
			smbd.s_shutting_down = B_TRUE;
			break;
		}
	}

	/*
	 * Allow termination signals while shutting down.
	 */
	(void) sigemptyset(&set);

	if (smbd.s_fg) {
		(void) sigaddset(&set, SIGHUP);
		(void) sigaddset(&set, SIGINT);
	}
	(void) sigaddset(&set, SIGTERM);

	(void) sigprocmask(SIG_UNBLOCK, &set, NULL);

	smbd_service_fini();
	return ((smbd.s_fatal_error) ? SMF_EXIT_ERR_FATAL : SMF_EXIT_OK);
}