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182 lines
3.4 KiB
Bash
182 lines
3.4 KiB
Bash
#!/bin/bash
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#
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# Init file for OpenSSH server daemon
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#
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# chkconfig: 2345 55 25
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# description: OpenSSH server daemon
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#
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# processname: sshd
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# config: /etc/ssh/ssh_host_key
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# config: /etc/ssh/ssh_host_key.pub
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# config: /etc/ssh/ssh_random_seed
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# config: /etc/ssh/sshd_config
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# pidfile: /var/run/sshd.pid
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#
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### BEGIN INIT INFO
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# Provides: sshd
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# Required-Start: $network
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# Should-Start: $remote_fs
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# Required-Stop: $network
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# Should-Stop: $remote_fs
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# Default-Start: 2 3 4 5
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# Short-Description: OpenSSH server daemon
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# Description: OpenSSH server daemon
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### END INIT INFO
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# source function library
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. /etc/rc.d/init.d/functions
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RETVAL=0
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prog="sshd"
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# Some functions to make the below more readable
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KEYGEN=/usr/bin/ssh-keygen
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SSHD=/usr/sbin/sshd
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RSA1_KEY=/etc/ssh/ssh_host_key
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RSA_KEY=/etc/ssh/ssh_host_rsa_key
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DSA_KEY=/etc/ssh/ssh_host_dsa_key
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PID_FILE=/var/run/sshd.pid
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# pull in sysconfig settings
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[ -f /etc/sysconfig/sshd ] && . /etc/sysconfig/sshd
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do_rsa1_keygen() {
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if [ ! -s $RSA1_KEY ]; then
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echo -n $"Generating SSH1 RSA host key: "
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if $KEYGEN -q -t rsa1 -f $RSA1_KEY -C '' -N '' >/dev/null 2>&1; then
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chmod 600 $RSA1_KEY
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chmod 644 $RSA1_KEY.pub
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success $"RSA1 key generation"
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echo
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else
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failure $"RSA1 key generation"
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echo
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exit 1
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fi
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fi
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}
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do_rsa_keygen() {
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if [ ! -s $RSA_KEY ]; then
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echo -n $"Generating SSH2 RSA host key: "
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if $KEYGEN -q -t rsa -f $RSA_KEY -C '' -N '' >/dev/null 2>&1; then
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chmod 600 $RSA_KEY
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chmod 644 $RSA_KEY.pub
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success $"RSA key generation"
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echo
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else
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failure $"RSA key generation"
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echo
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exit 1
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fi
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fi
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}
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do_dsa_keygen() {
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if [ ! -s $DSA_KEY ]; then
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echo -n $"Generating SSH2 DSA host key: "
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if $KEYGEN -q -t dsa -f $DSA_KEY -C '' -N '' >/dev/null 2>&1; then
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chmod 600 $DSA_KEY
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chmod 644 $DSA_KEY.pub
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success $"DSA key generation"
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echo
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else
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failure $"DSA key generation"
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echo
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exit 1
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fi
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fi
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}
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do_restart_sanity_check()
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{
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$SSHD -t
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RETVAL=$?
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if [ ! "$RETVAL" = 0 ]; then
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failure $"Configuration file or keys are invalid"
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echo
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fi
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}
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start()
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{
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# Create keys if necessary
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do_rsa1_keygen
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do_rsa_keygen
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do_dsa_keygen
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echo -n $"Starting $prog:"
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$SSHD $OPTIONS && success "startup" || failure "startup"
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RETVAL=$?
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[ "$RETVAL" = 0 ] && touch /var/lock/subsys/sshd
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echo
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}
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stop()
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{
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echo -n $"Stopping $prog:"
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if [ -r /var/run/sshd.pid ]; then
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kill -s TERM `cat /var/run/sshd.pid`
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RETVAL=$?
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if [ "$runlevel" = 0 -o "$runlevel" = 6 ]; then
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# stopping the system, kill active sshd clients
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killproc -p "" sshd
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fi
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[ "$RETVAL" = 0 ] && success "stop" || failure "stop"
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else
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success "already stopped"
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RETVAL=0
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fi
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[ "$RETVAL" = 0 ] && rm -f /var/lock/subsys/sshd
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echo
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}
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reload()
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{
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echo -n $"Reloading $prog:"
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if [ -r /var/run/sshd.pid ]; then
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kill -s HUP `cat /var/run/sshd.pid`
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RETVAL=$?
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[ "$RETVAL" = 0 ] && success "config reload" || failure "config reload"
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else
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failure "not running so config reload"
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RETVAL=1
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fi
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echo
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}
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case "$1" in
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start)
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start
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;;
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stop)
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stop
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;;
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restart)
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stop
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sleep 1
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start
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;;
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reload)
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reload
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;;
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condrestart)
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if [ -f /var/lock/subsys/sshd ] ; then
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do_restart_sanity_check
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if [ "$RETVAL" = 0 ] ; then
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stop
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# avoid race
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sleep 3
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start
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fi
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fi
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;;
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status)
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status $SSHD
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RETVAL=$?
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;;
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*)
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echo $"Usage: $0 {start|stop|restart|reload|condrestart|status}"
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RETVAL=1
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esac
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exit $RETVAL
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