This commit was generated by cvs2svn to compensate for changes in r5,

[pl_sshd.git] / pl_sshd

diff --git a/pl_sshd b/pl_sshd
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+#!/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