HardenedBSD/etc/rc

#!/bin/sh
#	$Id: rc,v 1.162 1998/12/11 08:25:12 jb Exp $
#	From: @(#)rc	5.27 (Berkeley) 6/5/91

# System startup script run by init on autoboot
# or after single-user.
# Output and error are redirected to console by init,
# and the console is the controlling terminal.

# Note that almost all the user-configurable behavior is no longer in
# this file, but rather in /etc/rc.conf.  Please check this file
# first before contemplating any changes here.

stty status '^T'

# Set shell to ignore SIGINT (2), but not children;
# shell catches SIGQUIT (3) and returns to single user after fsck.
trap : 2
trap : 3	# shouldn't be needed

HOME=/; export HOME
PATH=/sbin:/bin:/usr/sbin:/usr/bin:/usr/local/sbin
export PATH

# Configure ccd devices.
if [ -f /etc/ccd.conf ]; then
	ccdconfig -C
fi

swapon -a

if [ $1x = autobootx ]; then
	echo Automatic reboot in progress...
	fsck -p
	case $? in
	0)
		;;
	2)
		exit 1
		;;
	4)
		reboot
		echo "reboot failed... help!"
		exit 1
		;;
	8)
		echo "Automatic file system check failed... help!"
		exit 1
		;;
	12)
		echo "Reboot interrupted"
		exit 1
		;;
	130)
		# interrupt before catcher installed
		exit 1
		;;
	*)
		echo "Unknown error in reboot"
		exit 1
		;;
	esac
else
	echo Skipping disk checks ...
fi

trap "echo 'Reboot interrupted'; exit 1" 3

# root must be read/write both for NFS diskless and for VFS LKMs before
# proceeding any further.
mount -u -o rw /
if [ $? != 0 ]; then
	echo "Filesystem mount failed, startup aborted"
	exit 1
fi

umount -a >/dev/null 2>&1

mount -a -t nonfs
if [ $? != 0 ]; then
	echo "Filesystem mount failed, startup aborted"
	exit 1
fi

# If there is a global system configuration file, suck it in.
if [ -f /etc/rc.conf ]; then
	. /etc/rc.conf
fi

# If old file exists, whine until they fix it.
if [ -f /etc/sysconfig ]; then
	echo "Warning: /etc/sysconfig has been replaced by /etc/rc.conf."
	echo "You should switch to /etc/rc.conf ASAP to eliminate this warning."
fi

adjkerntz -i

clean_var() {
	if [ ! -f /var/run/clean_var ]; then
		rm -rf /var/run/*
		rm -f /var/spool/lock/*
		rm -rf /var/spool/uucp/.Temp/*
		# Keep a copy of the boot messages around
		dmesg >/var/run/dmesg.boot
		# And an initial utmp file
		(cd /var/run && cp /dev/null utmp && chmod 644 utmp; )
		>/var/run/clean_var
	fi
}

if [ -d /var/run -a -d /var/spool/lock -a -d /var/spool/uucp/.Temp ]; then
	# network_pass1() *may* end up writing stuff to /var - we don't want to
	# remove it immediately afterwards - *nor* to we want to fail to clean
	# an nfs-mounted /var.
	clean_var
fi

# Add additional swapfile, if configured.
if [ "x$swapfile" != "xNO" -a -w "$swapfile" -a -b /dev/vn0b ]; then
	echo "Adding $swapfile as additional swap."
	vnconfig /dev/vn0b $swapfile && swapon /dev/vn0b
fi

# configure serial devices
if [ -f /etc/rc.serial ]; then
	. /etc/rc.serial
fi

# start up PC-card configuration
if [ -f /etc/rc.pccard ]; then
	. /etc/rc.pccard
fi

# start up the initial network configuration.
if [ -f /etc/rc.network ]; then
	. /etc/rc.network	# We only need to do this once.
	network_pass1
fi

echo -n "Mounting NFS file systems"
mount -a -t nfs
echo .

# Whack the pty perms back into shape.
chmod 666 /dev/tty[pqrsPQRS]*

# clean up left-over files
rm -f /etc/nologin

clean_var			# If it hasn't already been done
rm /var/run/clean_var

#
# Clearing /tmp at boot-time seems to have a long tradition.  It doesn't
# help in any way for long-living systems, and it might accidentally
# clobber files you would rather like to have preserved after a crash
# (if not using mfs /tmp anyway).
#
# See also the example of another cleanup policy in /etc/periodic/daily.
#
if [ "X${clear_tmp_enable}" = X"YES" ]; then
	echo clearing /tmp

	# prune quickly with one rm, then use find to clean up /tmp/[lq]*
	# (not needed with mfs /tmp, but doesn't hurt there...)
	(cd /tmp && rm -rf [a-km-pr-zA-Z]* &&
		find -d . ! -name . ! -name lost+found ! -name quotas -exec rm -rf -- {} \;)

fi

# Remove X lock files, since they will prevent you from restarting X11 
# after a system crash.
rm -f /tmp/.X*-lock /tmp/.X11-unix/*

# snapshot any kernel -c changes back to disk
echo 'recording kernel -c changes'
dset -q

echo -n 'additional daemons:'
# start system logging and name service (named needs to start before syslogd
# if you don't have a /etc/resolv.conf)
#
if [ "X${syslogd_enable}" = X"YES" ]; then
	# Transitional symlink (for the next couple of years :) until all
	# binaries had a chance to move towards /var/run/log.
	if [ ! -h /dev/log ] ; then
		# might complain for r/o root f/s
		ln -sf /var/run/log /dev/log
	fi

	rm -f /var/run/log
	echo -n ' syslogd';		syslogd ${syslogd_flags}
fi
echo '.'

# enable dumpdev so that savecore can see it
# /var/crash should be a directory or a symbolic link
# to the crash directory if core dumps are to be saved.
if [ "X${dumpdev}" != X"NO" -a -e ${dumpdev} -a -d /var/crash ]; then
	dumpon ${dumpdev}
	echo -n checking for core dump...
	savecore /var/crash
fi

if [ -n "$network_pass1_done" ]; then
	network_pass2
fi

# Check the quotas (must be after ypbind if using NIS)
if [ "X${check_quotas}" = X"YES" ]; then
	echo -n 'checking quotas:'
	quotacheck -a
	echo ' done.'
	quotaon -a
fi

if [ -n "$network_pass2_done" ]; then
	network_pass3
fi


# build ps databases
kvm_mkdb 
dev_mkdb

# check the password temp/lock file
if [ -f /etc/ptmp ]
then
	logger -s -p auth.err \
	"password file may be incorrect -- /etc/ptmp exists"
fi

if [ "X${accounting_enable}" = X"YES" -a -d /var/account ]; then
	echo 'turning on accounting'
	if [ ! -e /var/account/acct ]; then
		touch /var/account/acct
	fi
	accton /var/account/acct
fi

# Make shared lib searching a little faster.  Leave /usr/lib first if you
# add your own entries or you may come to grief.
if [ -x /sbin/ldconfig ]; then
	if [ X"`/usr/bin/objformat`" = X"elf" ]; then
		_LDC=/usr/lib
		for i in $ldconfig_paths; do
			if test -d $i; then
				_LDC="${_LDC} $i"
			fi
		done
		echo 'setting ELF ldconfig path:' ${_LDC}
		ldconfig -elf ${_LDC}
	fi

	# Legacy aout support for i386 only
	if [ X"`sysctl -n hw.machine`" = X"i386" ]; then
		# Default the a.out ldconfig path, in case the system's
		# /etc/rc.conf hasn't been updated.
		: ${ldconfig_paths_aout=${ldconfig_paths}}
		_LDC=/usr/lib/aout
		for i in $ldconfig_paths_aout; do
			if test -d $i; then
				_LDC="${_LDC} $i"
			fi
		done
		echo 'setting a.out ldconfig path:' ${_LDC}
		ldconfig -aout ${_LDC}
	fi
fi

# Now start up miscellaneous daemons that don't belong anywhere else
#
echo -n starting standard daemons:
if [ "X${inetd_enable}" != X"NO" ]; then
	echo -n ' inetd';	inetd ${inetd_flags}
fi

if [ "X${cron_enable}" != X"NO" ]; then
	echo -n ' cron';	cron
fi

if [ "X${lpd_enable}" = X"YES" ]; then
	echo -n ' printer';		lpd ${lpd_flags}
fi

if [ "X${sendmail_enable}" = X"YES" -a -r /etc/sendmail.cf ]; then
	echo -n ' sendmail';	/usr/sbin/sendmail ${sendmail_flags}
fi

echo '.'

# configure implementation specific stuff
arch=`uname -m`
if [ -f /etc/rc.${arch} ]; then
	. /etc/rc.${arch}
fi

# Recover vi editor files.
vibackup=`echo /var/tmp/vi.recover/vi.*`
if [ "$vibackup" != '/var/tmp/vi.recover/vi.*' ]; then
	echo 'Recovering vi editor sessions'
	for i in $vibackup; do
		# Only test files that are readable.
		if test ! -r $i; then
			continue
		fi

		# Unmodified nvi editor backup files either have the
		# execute bit set or are zero length.  Delete them.
		if test -x $i -o ! -s $i; then
			rm -f $i
		fi
	done

	# It is possible to get incomplete recovery files, if the editor
	# crashes at the right time.
	virecovery=`echo /var/tmp/vi.recover/recover.*`
	if [ "$virecovery" != "/var/tmp/vi.recover/recover.*" ]; then
		for i in $virecovery; do
			# Only test files that are readable.
			if test ! -r $i; then
				continue
			fi

			# Delete any recovery files that are zero length,
			# corrupted, or that have no corresponding backup file.
			# Else send mail to the user.
			recfile=`awk '/^X-vi-recover-path:/{print $2}' < $i`
			if test -n "$recfile" -a -s "$recfile"; then
				sendmail -t < $i
			else
				rm -f $i
			fi
		done
	fi
fi

# make a bounds file for msgs(1) if there isn't one already
if [ ! -f /var/msgs/bounds ]; then
	echo 0 > /var/msgs/bounds
fi

# for each valid dir in $local_startup, search for init scripts matching *.sh
if [ "X${local_startup}" != X"NO" ]; then
	echo -n 'Local package initialization:'
	for dir in ${local_startup}; do
		[ -d ${dir} ] && for script in ${dir}/*.sh; do
			[ -x ${script} ] && \
				(trap 'exit 1' 2 ; ${script} start ; echo -n)
		done
	done
	echo .
fi

if [ "X${update_motd}" != X"NO" ]; then
	T=/tmp/_motd
	rm -f $T
	uname -v | sed -e 's,^\([^#]*\) #\(.* [1-2][0-9][0-9][0-9]\).*/\([^\]*\) $,\1 (\3) #\2,' > $T
	awk '{if (NR == 1) {if ($1 == "FreeBSD") {next} else {print "\n"$0}} else {print}}' < /etc/motd >> $T
	cp $T /etc/motd
	chmod 644 /etc/motd
	rm -f $T
fi

# Run rc.devfs if present to customify devfs
[ -f /etc/rc.devfs ] && sh /etc/rc.devfs

# Do traditional (but rather obsolete) rc.local file if it exists.  If you
# use this file and want to make it programmatic, source /etc/rc.conf in
# /etc/rc.local and add your custom variables to /etc/rc.conf.local, as
# shown below.  Please do not put local extensions into /etc/rc itself. 
# Use /etc/rc.local
#
# ---- rc.local  ----
#     if [ -f /etc/rc.conf ]; then
#             . /etc/rc.conf
#     fi
#
#     ... additional startup conditionals ...
# ---- rc.local  ----
#

if [ -f /etc/rc.local ]; then
    echo -n 'starting local daemons:'
    sh /etc/rc.local
    echo '.'
fi

# Raise kernel security level.  This should be done only after `fsck' has
# repaired local file systems if you want the securelevel to be greater than 1.
if [ "X${kern_securelevel_enable}" = X"YES" -a "${kern_securelevel}" -ge 0 ]; 
then
	echo 'Raising kernel security level'
	sysctl -w kern.securelevel=${kern_securelevel}
fi

date
exit 0