xcat-core/xCAT/postscripts/remoteshell

#!/bin/sh
# IBM(c) 2007 EPL license http://www.eclipse.org/legal/epl-v10.html
#egan@us.ibm.com
#(C)IBM Corp
#
# For Linux only

if [ -r /etc/ssh/sshd_config ]
then
	logger -t xcat "Install: setup /etc/ssh/sshd_config"
	cp /etc/ssh/sshd_config /etc/ssh/sshd_config.ORIG
	sed -i 's/^X11Forwarding .*$/X11Forwarding yes/' /etc/ssh/sshd_config
	sed -i 's/^KeyRegenerationInterval .*$/KeyRegenerationInterval 0/' /etc/ssh/sshd_config
	sed -i 's/\(.*MaxStartups.*\)/#\1/' /etc/ssh/sshd_config
	echo "MaxStartups 1024" >>/etc/ssh/sshd_config
	#echo "PasswordAuthentication no" >>/etc/ssh/sshd_config
fi

if [ -r /etc/ssh/sshd_config ]
then
   echo "   StrictHostKeyChecking no" >> /etc/ssh/ssh_config
fi

if [ -d /xcatpost/_ssh ]
then
	logger -t xcat "Install: setup root .ssh"
	cd /xcatpost/_ssh
	mkdir -p /root/.ssh
	cp -f * /root/.ssh
   cd - >/dev/null
	chmod 700 /root/.ssh
	chmod 600 /root/.ssh/*
fi

#if [ -d /xcatpost/hostkeys ]
#then
#	logger -t xcat "Install: using server provided host key for convenience."
#	cp /xcatpost/hostkeys/*_key /etc/ssh/
#fi
if [ ! -x /usr/sbin/stunnel -a ! -x /usr/bin/stunnel ]; then #Stop if no stunnel to help the next bit
   if [ -x /usr/bin/openssl ]; then
      USEOPENSSLFORXCAT=1
      export USEOPENSSLFORXCAT
   else 
       exit 0
   fi
fi
allowcred.awk &
CREDPID=$!
sleep 1

function cred_handler() {
        getcredentials.awk $1 | grep -E -v '</{0,1}xcatresponse>|</{0,1}serverdone>'|sed -e 's/&lt;/</' -e 's/&gt;/>/' -e 's/&amp;/&/' -e 's/&quot/"/' -e "s/&apos;/'/" > /tmp/$1
        grep -E '<error>' /tmp/$1
        if [ $? ]; then
                cat /tmp/$1 | grep -E -v '</{0,1}data>|</{0,1}content>|</{0,1}desc>' >/etc/ssh/$1
		chmod 600 /etc/ssh/$1
                if ! grep "PRIVATE KEY" /etc/ssh/$1 > /dev/null 2>&1 ; then
                        logger -t xCAT $1 is PRIVATE KEY
                        rm /etc/ssh/$1
                        return
                fi
                logger -t xCAT $1
                rm /tmp/$1
        else
                ERR_MSG = `send -n 's%.*<error>\(.*\)</error>.*%\1%p' /tmp/$1`
                logger -t xCAT $1 Error: $ERR_MSG
                rm /tm/$1
                return
        fi

        MYCONT=`cat /etc/ssh/$1`
        while [ -z "$MYCONT" ]; do
                let SLI=$RANDOM%10
                let SLI=SLI+10
                sleep $SLI
                getcredentials.awk $1 | grep -E -v '</{0,1}xcatresponse>|</{0,1}serverdone>'|sed -e 's/&lt;/</' -e 's/&gt;/>/' -e 's/&amp;/&/' -e 's/&quot/"/' -e "s/&apos;/'/" > /tmp/$1
                grep -E '<error>' /tmp/$1
                if [ $? ]; then
                        cat /tmp/$1 | grep -E -v '</{0,1}data>|</{0,1}content>|</{0,1}desc>' >/etc/ssh/$1
			chmod 600 /etc/ssh/$1
			if ! grep "PRIVATE KEY" /etc/ssh/$1 > /dev/null 2>&1 ; then
				logger -t xCAT $1 is PRIVATE KEY
				rm /etc/ssh/$1
				return
			fi
                        logger -t xCAT $1
                        rm /tmp/$1
                else
                        ERR_MSG = `send -n 's%.*<error>\(.*\)</error>.*%\1%p' /tmp/$1`
                        logger -t xCAT $1 Error: $ERR_MSG
                        rm /tm/$1
                        return
                fi

                MYCONT=`cat /etc/ssh/$1`
        done

        return
}
cred_handler ssh_dsa_hostkey 
cred_handler ssh_rsa_hostkey

if [ -r /etc/xCATSN ] ; then
   mkdir /etc/xcat/hostkeys
   cp /etc/ssh/ssh* /etc/xcat/hostkeys/.

fi


umask 0077

mkdir -p /root/.ssh/
sleep 1
getcredentials.awk ssh_root_key | grep -v '<'|sed -e 's/&lt;/</' -e 's/&gt;/>/' -e 's/&amp;/&/' -e 's/&quot/"/' -e "s/&apos;/'/" > /root/.ssh/id_rsa
MYCONT=`cat /root/.ssh/id_rsa`
while [ -z "$MYCONT" ]; do
    let SLI=$RANDOM%10
    let SLI=SLI+10
    sleep $SLI
    getcredentials.awk ssh_root_key | grep -v '<'|sed -e 's/&lt;/</' -e 's/&gt;/>/' -e 's/&amp;/&/' -e 's/&quot/"/' -e "s/&apos;/'/" > /root/.ssh/id_rsa
    MYCONT=`cat /root/.ssh/id_rsa`
done

    
if ! grep "PRIVATE KEY" /root/.ssh/id_rsa > /dev/null 2>&1 ; then
   rm /root/.ssh/id_rsa
fi
if [ -r /root/.ssh/id_rsa ]; then
   ssh-keygen -y -f /root/.ssh/id_rsa > /root/.ssh/id_rsa.pub
fi
kill -9 $CREDPID