+#!/bin/bash
+#
+# Init file for PlanetLab OpenSSH server daemon (copied from standard
+# sshd init file, minor modifications made).
+#
+# chkconfig: 2345 55 25
+# description: PlanetLab 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/pl_sshd.pid
+
+# source function library
+. /etc/rc.d/init.d/functions
+#
+# pull in sysconfig settings
+[ -f /etc/sysconfig/pl_sshd ] && . /etc/sysconfig/pl_sshd
+
+# add the PlanetLab-specific options
+KEYDIR=/var/pl_sshd/keys
+OPTIONS="-p 806 -o 'AuthorizedKeysFile $KEYDIR/%u/authorized_keys'"
+AUTOMOUNT=/usr/sbin/automount
+AUTOMAP=/etc/auto.pl_sshd
+AUTOPID=
+
+RETVAL=0
+prog="pl_sshd"
+
+# Some functions to make the below more readable
+SSHD=/usr/sbin/sshd
+RSA1_KEY=/var/local/etc/ssh_host_key
+RSA_KEY=/var/local/etc/ssh_host_rsa_key
+DSA_KEY=/var/local/etc/ssh_host_dsa_key
+PID_FILE=/var/run/pl_sshd.pid
+
+do_restart_sanity_check()
+{
+ $SSHD -t
+ RETVAL=$?
+ if [ ! "$RETVAL" = 0 ]; then
+ failure $"Configuration file or keys are invalid"
+ echo
+ fi
+}
+
+check_automount()
+{
+ # get pid for our automount process
+ AUTOPID=`mount | \
+ sed -ne "s%^automount(pid\([0-9]*\)) on $KEYDIR type autofs.*%\1%p"`
+
+ # check if that process is still alive
+ { [ -n "$AUTOPID" ] && ps -p $AUTOPID >/dev/null 2>&1; } || return 1
+
+ # check if we can actually mount a user dir in the automount dir
+ [ -d "$KEYDIR/root" ] || return 1
+}
+
+start()
+{
+ # make sure the key dir exists and automount is working on it
+ [ -d "$KEYDIR" ] || mkdir -p $KEYDIR
+ [ -x "$AUTOMAP" ] ||
+ { echo "$AUTOMAP not executable"; return 1; }
+ check_automount || $AUTOMOUNT $KEYDIR program $AUTOMAP
+
+ echo -n $"Starting $prog:"
+ initlog -c "$SSHD $OPTIONS" && success || failure
+ RETVAL=$?
+ [ "$RETVAL" = 0 ] && touch /var/lock/subsys/pl_sshd
+ echo
+}
+
+stop()
+{
+ check_automount && kill -USR2 $AUTOPID
+
+ #echo -n $"Stopping $prog:"
+ #killproc $SSHD -TERM
+ echo 'you need to kill the port 806 sshd(s) manually'
+ echo 'make sure not to kill the port 22 sshd...'
+ RETVAL=$?
+ [ "$RETVAL" = 0 ] && rm -f /var/lock/subsys/pl_sshd
+ #echo
+}
+
+reload()
+{
+ echo -n $"Reloading $prog:"
+ killproc $SSHD -HUP
+ RETVAL=$?
+ echo
+}
+
+case "$1" in
+ start)
+ start
+ ;;
+ stop)
+ stop
+ ;;
+ restart)
+ stop
+ start
+ ;;
+ reload)
+ reload
+ ;;
+ condrestart)
+ if [ -f /var/lock/subsys/pl_sshd ] ; then
+ do_restart_sanity_check
+ if [ "$RETVAL" = 0 ] ; then
+ stop
+ # avoid race
+ sleep 3
+ start
+ fi
+ fi
+ ;;
+ status)
+ check_automount && echo automount running ||
+ echo automount not functioning
+ status pl_sshd
+ RETVAL=$?
+ ;;
+ *)
+ echo $"Usage: $0 {start|stop|restart|reload|condrestart|status}"
+ RETVAL=1
+esac
+exit $RETVAL