#!/bin/bash## Init file for OpenSSH server daemon## chkconfig: 2345 55 25# description: OpenSSH server daemon## processname: sshd# config: /etc/ssh/ssh_host_key# config: /etc/ssh/ssh_host_key.pub# config: /etc/ssh/ssh_random_seed# config: /etc/ssh/sshd_config# pidfile: /var/run/sshd.pid# source function library. /etc/rc.d/init.d/functions# pull in sysconfig settings[ -f /etc/sysconfig/sshd ] && . /etc/sysconfig/sshdRETVAL=0prog="sshd"# Some functions to make the below more readableKEYGEN=/usr/bin/ssh-keygenSSHD=/usr/sbin/sshdRSA1_KEY=/etc/ssh/ssh_host_keyRSA_KEY=/etc/ssh/ssh_host_rsa_keyDSA_KEY=/etc/ssh/ssh_host_dsa_keyPID_FILE=/var/run/sshd.piddo_rsa1_keygen() {	if [ ! -s $RSA1_KEY ]; then		echo -n $"Generating SSH1 RSA host key: "		if $KEYGEN -q -t rsa1 -f $RSA1_KEY -C '' -N '' >&/dev/null; then			chmod 600 $RSA1_KEY			chmod 644 $RSA1_KEY.pub			if [ -x /sbin/restorecon ]; then			    /sbin/restorecon $RSA1_KEY.pub			fi			success $"RSA1 key generation"			echo		else			failure $"RSA1 key generation"			echo			exit 1		fi	fi}do_rsa_keygen() {	if [ ! -s $RSA_KEY ]; then		echo -n $"Generating SSH2 RSA host key: "		if $KEYGEN -q -t rsa -f $RSA_KEY -C '' -N '' >&/dev/null; then			chmod 600 $RSA_KEY			chmod 644 $RSA_KEY.pub			if [ -x /sbin/restorecon ]; then			    /sbin/restorecon $RSA_KEY.pub			fi			success $"RSA key generation"			echo		else			failure $"RSA key generation"			echo			exit 1		fi	fi}do_dsa_keygen() {	if [ ! -s $DSA_KEY ]; then		echo -n $"Generating SSH2 DSA host key: "		if $KEYGEN -q -t dsa -f $DSA_KEY -C '' -N '' >&/dev/null; then			chmod 600 $DSA_KEY			chmod 644 $DSA_KEY.pub			if [ -x /sbin/restorecon ]; then			    /sbin/restorecon $DSA_KEY.pub			fi			success $"DSA key generation"			echo		else			failure $"DSA key generation"			echo			exit 1		fi	fi}do_restart_sanity_check(){	$SSHD -t	RETVAL=$?	if [ ! "$RETVAL" = 0 ]; then		failure $"Configuration file or keys are invalid"		echo	fi}start(){	# Create keys if necessary	do_rsa1_keygen	do_rsa_keygen	do_dsa_keygen	echo -n $"Starting $prog:"	initlog -c "$SSHD $OPTIONS" && success || failure	RETVAL=$?	[ "$RETVAL" = 0 ] && touch /var/lock/subsys/sshd	echo}stop(){	echo -n $"Stopping $prog:"	killproc $SSHD -TERM	RETVAL=$?	[ "$RETVAL" = 0 ] && rm -f /var/lock/subsys/sshd	echo}reload(){	echo -n $"Reloading $prog:"	killproc $SSHD -HUP	RETVAL=$?	echo}case "$1" in	start)		start		;;	stop)		stop		;;	restart)		stop		start		;;	reload)		reload		;;	condrestart)		if [ -f /var/lock/subsys/sshd ] ; then			do_restart_sanity_check			if [ "$RETVAL" = 0 ] ; then				stop				# avoid race				sleep 3				start			fi		fi		;;	status)		status $SSHD		RETVAL=$?		;;	*)		echo $"Usage: $0 {start|stop|restart|reload|condrestart|status}"		RETVAL=1esacexit $RETVAL