387 lines
15 KiB
Bash
Executable File
387 lines
15 KiB
Bash
Executable File
#!/bin/sh
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# IBM(c) 2007 EPL license http://www.eclipse.org/legal/epl-v10.html
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#(C)IBM Corp
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# This script adds xCAT specific setup to the /etc/ssh/sshd_config and ssh_config file
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# It calls getcredentials.awk to get from the xcatmaster ssh host keys from the
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# /etc/xcat/hostkeys directory and puts in /etc/ssh on the node the following keys
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# ssh_host_dsa_key,ssh_host_rsa_key
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# It calls getcredentials.awk to get from the xcatmaster root ssh keys from the
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# ~/.ssh directory on the xcatmaster and put in ~/.ssh on the node the following keys:
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# If site.enablesshbetweennodes is yes
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# id.rsa
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#
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# if on the Management Node, exit
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if [ -e /etc/xCATMN ]; then
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logger -t xcat -p local4.info "remoteshell:Running on the Management Node , exiting "
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exit 0
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fi
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# if -p input, do special PCM setup
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if [ -n "$1" ]; then
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if [ $1 = "-p" ]; then
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SETUPFORPCM=1
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fi
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fi
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# Linux or if AIX call aixremoteshell -d
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if [ "$(uname -s)" = "AIX" ]; then
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./aixremoteshell -d 2>&1
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logger -t xcat -p local4.info "Install: On AIX , remoteshell calling aixremoteshell -d "
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exit 0
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fi
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master=$MASTER
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# are we using xcat flow control
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useflowcontrol=0
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if [ "$USEFLOWCONTROL" = "YES" ] || [ "$USEFLOWCONTROL" = "yes" ] || [ "$USEFLOWCONTROL" = "1" ]; then
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useflowcontrol=1
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fi
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if [ -r /etc/ssh/sshd_config ]
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then
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logger -t xcat -p local4.info "remoteshell: setup /etc/ssh/sshd_config and ssh_config"
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cp /etc/ssh/sshd_config /etc/ssh/sshd_config.ORIG
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#delete all occurance of the attribute and then add xCAT settings
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sed -i '/X11Forwarding /'d /etc/ssh/sshd_config
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echo "X11Forwarding yes" >>/etc/ssh/sshd_config
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sed -i '/KeyRegenerationInterval /'d /etc/ssh/sshd_config
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echo "KeyRegenerationInterval 0" >>/etc/ssh/sshd_config
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sed -i '/MaxStartups /'d /etc/ssh/sshd_config
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echo "MaxStartups 1024" >>/etc/ssh/sshd_config
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sed -i 's/^\s*\(PermitRootLogin\s*\).*/\1yes/' /etc/ssh/sshd_config
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if [ "$SETUPFORPCM" = "1" ];then
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sed -i '/PasswordAuthentication /'d /etc/ssh/sshd_config
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echo "PasswordAuthentication yes" >>/etc/ssh/sshd_config
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fi
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fi
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if [ -r /etc/ssh/ssh_config ]
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then
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sed -i '/StrictHostKeyChecking /'d /etc/ssh/ssh_config
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echo "StrictHostKeyChecking no" >> /etc/ssh/ssh_config
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fi
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xcatpost="xcatpost"
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if [ -d /xcatpost/_ssh ]
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then
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logger -p local4.info -t xcat "Install: setup root .ssh"
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cd /xcatpost/_ssh
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mkdir -p /root/.ssh
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cp -f * /root/.ssh
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cd - >/dev/null
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chmod 700 /root/.ssh
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chmod 600 /root/.ssh/*
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fi
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if [ ! -x /usr/bin/openssl ]; then
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logger -t xcat -p local4.err "Install: /usr/bin/openssl is not executable."
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exit 0
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fi
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allowcred.awk &
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CREDPID=$!
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sleep 1
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if [ $useflowcontrol = "1" ]; then
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#first contact daemon xcatflowrequest <server> 3001
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logger -t xCAT -p local4.info "remoteshell: sending xcatflowrequest $master 3001"
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/$xcatpost/xcatflowrequest $master 3001
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rc=$?
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logger -t xCAT -p local4.info "remoteshell:xcatflowrequest received response return=$rc"
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if [ $rc -ne 0 ]; then
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logger -t xCAT -p local4.info "remoteshell: error from xcatflowrequest, will not use flow control"
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useflowcontrol=0
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fi
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fi
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getcredentials.awk ssh_dsa_hostkey | grep -E -v '</{0,1}xcatresponse>|</{0,1}serverdone>' | sed -e 's/</</' -e 's/>/>/' -e 's/&/&/' -e 's/"/"/' -e "s/'/'/" > /tmp/ssh_dsa_hostkey
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#check the message is an error or not
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grep -E '<error>' /tmp/ssh_dsa_hostkey
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if [ $? -ne 0 ]; then
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#the message received is the data
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cat /tmp/ssh_dsa_hostkey | grep -E -v '</{0,1}errorcode>|/{0,1}data>|</{0,1}content>|</{0,1}desc>' >/etc/ssh/ssh_host_dsa_key
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logger -t xCAT -p local4.info "remoteshell: getting ssh_host_dsa_key"
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MAX_RETRIES=10
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RETRY=0
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MYCONT=`cat /etc/ssh/ssh_host_dsa_key`
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while [ -z "$MYCONT" ]; do
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# not using flow control , need to sleep
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if [ $useflowcontrol = "0" ]; then
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let SLI=$RANDOM%10
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let SLI=SLI+10
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sleep $SLI
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fi
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RETRY=$(($RETRY+1))
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if [ $RETRY -eq $MAX_RETRIES ]
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then
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break
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fi
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if [ $useflowcontrol = "1" ]; then
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#first contact daemon xcatflowrequest <server> 3001
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logger -t xCAT -p local4.info "remoteshell: sending xcatflowrequest $master 3001"
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/$xcatpost/xcatflowrequest $master 3001
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rc=$?
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logger -t xCAT -p local4.info "remoteshell:xcatflowrequest return=$rc"
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if [ $rc -ne 0 ]; then
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logger -t xCAT -p local4.info "remoteshell: error from xcatflowrequest, will not use flow control"
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useflowcontrol=0
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fi
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fi
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getcredentials.awk ssh_dsa_hostkey | grep -v '<'|sed -e 's/</</' -e 's/>/>/' -e 's/&/&/' -e 's/"/"/' -e "s/'/'/" > /etc/ssh/ssh_host_dsa_key
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MYCONT=`cat /etc/ssh/ssh_host_dsa_key`
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done
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chmod 600 /etc/ssh/ssh_host_dsa_key
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if ! grep "PRIVATE KEY" /etc/ssh/ssh_host_dsa_key > /dev/null 2>&1 ; then
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rm /etc/ssh/ssh_host_dsa_key
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else
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ssh-keygen -y -f /etc/ssh/ssh_host_dsa_key > /etc/ssh/ssh_host_dsa_key.pub
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chmod 644 /etc/ssh/ssh_host_dsa_key.pub
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chown root /etc/ssh/ssh_host_dsa_key.pub
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fi
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else
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#the message received is an error, so parse it
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ERR_MSG=`sed -n 's%.*<error>\(.*\)</error>.*%\1%p' /tmp/ssh_dsa_hostkey`
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logger -t xCAT -p local4.err Error: $ERR_MSG
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fi
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rm /tmp/ssh_dsa_hostkey
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if [ $useflowcontrol = "1" ]; then
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#first contact daemon xcatflowrequest <server> 3001
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logger -t xCAT -p local4.info "remoteshell: sending xcatflowrequest $master 3001"
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/$xcatpost/xcatflowrequest $master 3001
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rc=$?
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logger -t xCAT -p local4.info "remoteshell:xcatflowrequest return=$rc"
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if [ $rc -ne 0 ]; then
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logger -t xCAT -p local4.info "remoteshell: error from xcatflowrequest, will not use flow control"
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useflowcontrol=0
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fi
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fi
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getcredentials.awk ssh_rsa_hostkey | grep -E -v '</{0,1}xcatresponse>|</{0,1}serverdone>' | sed -e 's/</</' -e 's/>/>/' -e 's/&/&/' -e 's/"/"/' -e "s/'/'/" > /tmp/ssh_rsa_hostkey
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#check whether the message is an error or not
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grep -E '<error>' /tmp/ssh_rsa_hostkey
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if [ $? -ne 0 ]; then
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#the message received is the data we request
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cat /tmp/ssh_rsa_hostkey | grep -E -v '</{0,1}errorcode>|/{0,1}data>|</{0,1}content>|</{0,1}desc>' >/etc/ssh/ssh_host_rsa_key
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logger -t xCAT -p local4.info ssh_rsa_hostkey
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MYCONT=`cat /etc/ssh/ssh_host_rsa_key`
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MAX_RETRIES=10
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RETRY=0
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while [ -z "$MYCONT" ]; do
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# not using flow control , need to sleep
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if [ $useflowcontrol = "0" ]; then
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let SLI=$RANDOM%10
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let SLI=SLI+10
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sleep $SLI
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fi
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RETRY=$(($RETRY+1))
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if [ $RETRY -eq $MAX_RETRIES ]
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then
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break
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fi
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if [ $useflowcontrol = "1" ]; then
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#first contact daemon xcatflowrequest <server> 3001
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logger -t xCAT -p local4.info "remoteshell: sending xcatflowrequest $master 3001"
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/$xcatpost/xcatflowrequest $master 3001
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rc=$?
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logger -t xCAT -p local4.info "remoteshell:xcatflowrequest return=$rc"
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if [ $rc -ne 0 ]; then
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logger -t xCAT -p local4.info "remoteshell: error from xcatflowrequest, will not use flow control"
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useflowcontrol=0
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fi
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fi
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getcredentials.awk ssh_rsa_hostkey | grep -v '<'|sed -e 's/</</' -e 's/>/>/' -e 's/&/&/' -e 's/"/"/' -e "s/'/'/" > /etc/ssh/ssh_host_rsa_key
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MYCONT=`cat /etc/ssh/ssh_host_rsa_key`
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done
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chmod 600 /etc/ssh/ssh_host_rsa_key
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if ! grep "PRIVATE KEY" /etc/ssh/ssh_host_rsa_key > /dev/null 2>&1 ; then
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rm /etc/ssh/ssh_host_rsa_key
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else
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ssh-keygen -y -f /etc/ssh/ssh_host_rsa_key > /etc/ssh/ssh_host_rsa_key.pub
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chmod 644 /etc/ssh/ssh_host_rsa_key.pub
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chown root /etc/ssh/ssh_host_rsa_key.pub
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fi
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else
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#This is an error message
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ERR_MSG=`sed -n 's%.*<error>\(.*\)</error>.*%\1%p' /tmp/ssh_rsa_hostkey`
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logger -t xCAT -p local4.err Error: $ERR_MSG
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fi
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rm /tmp/ssh_rsa_hostkey
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if [[ $NTYPE = service ]]; then
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mkdir -p /etc/xcat/hostkeys
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cp /etc/ssh/ssh* /etc/xcat/hostkeys/.
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fi
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umask 0077
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# This is where we start getting root ssh keys
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# This tells credentials.pm where to get the root .ssh keys. If no zone then old path of ~.ssh
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#rootsshpvtkey=ssh_root_key:$zonename
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mkdir -p /root/.ssh/
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# this is for obtaining non-zone keys
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rootsshpvtkey=ssh_root_key
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rootsshpubkey=ssh_root_pub_key
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if [ $ZONENAME ];
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then
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# This tells credentials.pm where to get the root .ssh keys. If no zone then old path of ~/.ssh
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zonename=$ZONENAME
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rootsshpvtkey=ssh_root_key:$zonename
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rootsshpubkey=ssh_root_pub_key:$zonename
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logger -t xCAT -p local4.info "remoteshell: gathering root ssh keys for $zonename"
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fi
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# always get the id_rsa.pub key for the node and put in authorized_keys
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if [ $useflowcontrol = "1" ]; then
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#first contact daemon xcatflowrequest <server> 3001
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logger -t xCAT -p local4.info "remoteshell: sending xcatflowrequest $master 3001"
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/$xcatpost/xcatflowrequest $master 3001
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rc=$?
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logger -t xCAT -p local4.info "remoteshell:xcatflowrequest return=$rc"
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if [ $rc -ne 0 ]; then
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logger -t xCAT -p local4.info "remoteshell: error from xcatflowrequest, will not use flow control"
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useflowcontrol=0
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fi
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fi
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getcredentials.awk $rootsshpubkey | grep -E -v '</{0,1}xcatresponse>|</{0,1}serverdone>'|sed -e 's/</</' -e 's/>/>/' -e 's/&/&/' -e 's/"/"/' -e "s/'/'/" > /tmp/ssh_root_pub_key
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logger -t xCAT -p local4.info "remoteshell: gathering $rootsshpubkey "
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#check whether the message is an error or not
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grep -E '<error>' /tmp/ssh_root_pub_key
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if [ $? -ne 0 ]; then
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#The message contains the data we request
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cat /tmp/ssh_root_pub_key | grep -E -v '</{0,1}errorcode>|</{0,1}data>|</{0,1}content>|</{0,1}desc>' > /root/.ssh/id_rsa.pub
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# no add to authorized_keys, so the node can ssh to itself
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cat /tmp/ssh_root_pub_key | grep -E -v '</{0,1}errorcode>|</{0,1}data>|</{0,1}content>|</{0,1}desc>' >> /root/.ssh/authorized_keys
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logger -t xCAT -p local4.info ssh_root_pub_key
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MYCONT=`cat /root/.ssh/id_rsa.pub`
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MAX_RETRIES=10
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RETRY=0
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while [ -z "$MYCONT" ]; do
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if [ $useflowcontrol = "0" ]; then
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let SLI=$RANDOM%10
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let SLI=SLI+10
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sleep $SLI
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fi
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RETRY=$(($RETRY+1))
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if [ $RETRY -eq $MAX_RETRIES ]
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then
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break
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fi
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if [ $useflowcontrol = "1" ]; then
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#first contact daemon xcatflowrequest <server> 3001
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logger -t xCAT -p local4.info "remoteshell: sending xcatflowrequest $master 3001"
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/$xcatpost/xcatflowrequest $master 3001
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rc=$?
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logger -t xCAT -p local4.info "remoteshell:xcatflowrequest return=$rc"
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if [ $rc -ne 0 ]; then
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logger -t xCAT -p local4.info "remoteshell: error from xcatflowrequest, will not use flow control"
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useflowcontrol=0
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fi
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fi
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getcredentials.awk $rootsshpubkey | grep -v '<'|sed -e 's/</</' -e 's/>/>/' -e 's/&/&/' -e 's/"/"/' -e "s/'/'/" > /root/.ssh/id_rsa.pub
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getcredentials.awk $rootsshpubkey | grep -v '<'|sed -e 's/</</' -e 's/>/>/' -e 's/&/&/' -e 's/"/"/' -e "s/'/'/" >> /root/.ssh/authorized_keys
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MYCONT=`cat /root/.ssh/id_rsa.pub`
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done
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else
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#This is an error message
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ERR_MSG=`sed -n 's%.*<error>\(.*\)</error>.*%\1%p' /tmp/ssh_root_pub_key`
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logger -t xCAT -p local4.err $rootsshpubkey Error: $ERR_MSG
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fi
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rm /tmp/ssh_root_pub_key
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# if sshbetweennodes is enabled then we get id_rsa ( private key)
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if [ $ENABLESSHBETWEENNODES = "YES" ]; # want nodes to be able to ssh to each other without password
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then
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logger -t xCAT -p local4.info "remoteshell:sshbetweennodes is yes"
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if [ $useflowcontrol = "1" ]; then
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#first contact daemon xcatflowrequest <server> 3001
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logger -t xCAT -p local4.info "remoteshell: sending xcatflowrequest $master 3001"
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/$xcatpost/xcatflowrequest $master 3001
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rc=$?
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logger -t xCAT -p local4.info "remoteshell:xcatflowrequest return=$rc"
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if [ $rc -ne 0 ]; then
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logger -t xCAT -p local4.info "remoteshell: error from xcatflowrequest, will not use flow control"
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useflowcontrol=0
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fi
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fi
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getcredentials.awk $rootsshpvtkey | grep -E -v '</{0,1}xcatresponse>|</{0,1}serverdone>'|sed -e 's/</</' -e 's/>/>/' -e 's/&/&/' -e 's/"/"/' -e "s/'/'/" > /tmp/ssh_root_key
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logger -t xCAT -p local4.info "remoteshell: gathering $rootsshpvtkey "
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#check whether the message is an error or not
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grep -E '<error>' /tmp/ssh_root_key
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if [ $? -ne 0 ]; then
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#The message contains the data we request
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cat /tmp/ssh_root_key | grep -E -v '</{0,1}errorcode>|/{0,1}data>|</{0,1}content>|</{0,1}desc>' > /root/.ssh/id_rsa
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logger -t xCAT -p local4.info ssh_root_key
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MYCONT=`cat /root/.ssh/id_rsa`
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MAX_RETRIES=10
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RETRY=0
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while [ -z "$MYCONT" ]; do
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if [ $useflowcontrol = "0" ]; then
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let SLI=$RANDOM%10
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let SLI=SLI+10
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sleep $SLI
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fi
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RETRY=$(($RETRY+1))
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if [ $RETRY -eq $MAX_RETRIES ]
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then
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break
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fi
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if [ $useflowcontrol = "1" ]; then
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#first contact daemon xcatflowrequest <server> 3001
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logger -t xCAT -p local4.info "remoteshell: sending xcatflowrequest $master 3001"
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/$xcatpost/xcatflowrequest $master 3001
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rc=$?
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logger -t xCAT -p local4.info "remoteshell:xcatflowrequest return=$rc"
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if [ $rc -ne 0 ]; then
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logger -t xCAT -p local4.info "remoteshell: error from xcatflowrequest, will not use flow control"
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useflowcontrol=0
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fi
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fi
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getcredentials.awk $rootsshpvtkey | grep -v '<'|sed -e 's/</</' -e 's/>/>/' -e 's/&/&/' -e 's/"/"/' -e "s/'/'/" > /root/.ssh/id_rsa
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MYCONT=`cat /root/.ssh/id_rsa`
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done
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else
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#This is an error message
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ERR_MSG=`sed -n 's%.*<error>\(.*\)</error>.*%\1%p' /tmp/ssh_root_key`
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logger -t xCAT -p local4.err $rootsshpvtkey Error: $ERR_MSG
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fi
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rm /tmp/ssh_root_key
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if ! grep "PRIVATE KEY" /root/.ssh/id_rsa > /dev/null 2>&1 ; then
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rm /root/.ssh/id_rsa
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fi
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# if public key does not exist then generate one from the private key
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if [ ! -f /root/.ssh/id_rsa.pub ]; then
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if [ -r /root/.ssh/id_rsa ]; then
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ssh-keygen -y -f /root/.ssh/id_rsa > /root/.ssh/id_rsa.pub
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logger -t xCAT -p local4.err remoteshell:transfer of the id_rsa.pub key failed. Had to generate a public key.
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fi
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fi
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fi
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# start up the sshd for syncfiles postscript to do the sync work
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logger -t xCAT -p local4.info "start up sshd"
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if [[ $OSVER == ubuntu* || $OSVER == debian* ]]
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then
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if [ ! -d /var/run/sshd ]
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then
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mkdir /var/run/sshd
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chmod 0755 /var/run/sshd
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/usr/sbin/sshd -f /etc/ssh/sshd_config
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else
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service ssh restart
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fi
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else
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service sshd restart
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fi
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kill -9 $CREDPID
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