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|
#!/bin/sh
#
# External STONITH module for ssh.
#
# Copyright (c) 2004 SUSE LINUX AG - Lars Marowsky-Bree <lmb@suse.de>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of version 2 of the GNU General Public License as
# published by the Free Software Foundation.
#
# This program is distributed in the hope that it would be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
#
# Further, this software is distributed without any warranty that it is
# free of the rightful claim of any third person regarding infringement
# or the like. Any license provided herein, whether implied or
# otherwise, applies only to this software file. Patent licenses, if
# any, provided herein do not apply to combinations of this program with
# other software, or any other product whatsoever.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write the Free Software Foundation,
# Inc., 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
#
SSH_COMMAND="@SSH@ -q -x -o PasswordAuthentication=no -o StrictHostKeyChecking=no -n -l root"
#SSH_COMMAND="@SSH@ -q -x -n -l root"
REBOOT_COMMAND="echo 'sleep 2; @REBOOT@ @REBOOT_OPTIONS@' | SHELL=/bin/sh at now >/dev/null 2>&1"
# Warning: If you select this poweroff command, it'll physically
# power-off the machine, and quite a number of systems won't be remotely
# revivable.
# TODO: Probably should touch a file on the server instead to just
# prevent heartbeat et al from being started after the reboot.
# POWEROFF_COMMAND="echo 'sleep 2; /sbin/poweroff -nf' | SHELL=/bin/sh at now >/dev/null 2>&1"
POWEROFF_COMMAND="echo 'sleep 2; @REBOOT@ @REBOOT_OPTIONS@' | SHELL=/bin/sh at now >/dev/null 2>&1"
# Rewrite the hostlist to accept "," as a delimeter for hostnames too.
hostlist=`echo $hostlist | tr ',' ' '`
is_host_up() {
for j in 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
do
if
ping -w1 -c1 "$1" >/dev/null 2>&1
then
sleep 1
else
return 1
fi
done
return 0
}
case $1 in
gethosts)
for h in $hostlist ; do
echo $h
done
exit 0
;;
on)
# Can't really be implemented because ssh cannot power on a system
# when it is powered off.
exit 1
;;
off)
# Shouldn't really be implemented because if ssh cannot power on a
# system, it shouldn't be allowed to power it off.
exit 1
;;
reset)
h_target=`echo $2 | tr A-Z a-z`
for h in $hostlist
do
h=`echo $h | tr A-Z a-z`
[ "$h" != "$h_target" ] &&
continue
if
case ${livedangerously} in
[Yy]*) is_host_up $h;;
*) true;;
esac
then
$SSH_COMMAND "$2" "$REBOOT_COMMAND"
# Good thing this is only for testing...
if
is_host_up $h
then
exit 1
else
exit 0
fi
else
# well... Let's call it successful, after all this is only for testing...
exit 0
fi
done
exit 1
;;
status)
if
[ -z "$hostlist" ]
then
exit 1
fi
for h in $hostlist
do
if
ping -w1 -c1 "$h" 2>&1 | grep "unknown host"
then
exit 1
fi
done
exit 0
;;
getconfignames)
echo "hostlist"
exit 0
;;
getinfo-devid)
echo "ssh STONITH device"
exit 0
;;
getinfo-devname)
echo "ssh STONITH external device"
exit 0
;;
getinfo-devdescr)
echo "ssh-based host reset"
echo "Fine for testing, but not suitable for production!"
echo "Only reboot action supported, no poweroff, and, surprisingly enough, no poweron."
exit 0
;;
getinfo-devurl)
echo "http://openssh.org"
exit 0
;;
getinfo-xml)
cat << SSHXML
<parameters>
<parameter name="hostlist" unique="1" required="1">
<content type="string" />
<shortdesc lang="en">
Hostlist
</shortdesc>
<longdesc lang="en">
The list of hosts that the STONITH device controls
</longdesc>
</parameter>
<parameter name="livedangerously" unique="0" required="0">
<content type="enum" />
<shortdesc lang="en">
Live Dangerously!!
</shortdesc>
<longdesc lang="en">
Set to "yes" if you want to risk your system's integrity.
Of course, since this plugin isn't for production, using it
in production at all is a bad idea. On the other hand,
setting this parameter to yes makes it an even worse idea.
Viva la Vida Loca!
</longdesc>
</parameter>
</parameters>
SSHXML
exit 0
;;
*)
exit 1
;;
esac
|
