#!/bin/bash
# Written by Udo Giacomozzi <udo.giacomozzi@indunet.it>
# Public domain.
VERSION=1.0
show_help()
{
cat <<EOF
Usage:
fence_drac5 [options]
Options:
-a, --ip=[ip] IP address or hostname of fencing device
-l, --username=[name] Login name
-p, --password=[password] Login password or passphrase
-c, --command-prompt=[prompt] command prompt string (default "admin1->")
-x, --ssh Use ssh connection
-u, --ipport=[port] TCP/UDP port to use (default 22)
--ssh-options=[options] SSH options to use
-o, --action=[action] Action: status, reboot (default), off or on
-v, --verbose Verbose mode
-V, --version Output version information and exit
-h, --help Display this help and exit
EOF
exit 1
}
show_version()
{
echo "$VERSION"
}
gen_expect_commands()
{
cat <<EOF
# action $action
log_user $be_verbose
spawn ssh $ssh_options -o StrictHostKeyChecking=no $username@$ip_address
expect "assword:"
send "$password\r"
expect {
"denied" "exit 9"
"$prompt" { }
}
proc verify_off {} {
set timeout 5
send "racadm serveraction powerstatus\r"
expect {
"power status: OFF" { expect "$prompt" ; return }
timeout "exit 3"
"$prompt" "exit 5"
}
}
proc verify_on {} {
set timeout 5
send "racadm serveraction powerstatus\r"
expect {
"power status: ON" { expect "$prompt" ; return }
timeout "exit 3"
"$prompt" "exit 5"
}
}
EOF
if [ "$action" = "status" ]; then
cat <<EOF
send "racadm serveraction powerstatus\r"
expect {
"power status: ON" { send_user "Status: ON" ; return 0 }
"power status: OFF" { send_user "Status: OFF" ; return 0 }
}
EOF
fi
if [ "$action" = "reboot" ]; then
echo 'send "racadm serveraction hardreset\r"'
echo 'expect "operation successful"'
fi
if [ "$action" = "off" ]; then
cat <<EOF
send "racadm serveraction powerdown\r"
set timeout 20
expect {
"operation successful" { expect "$prompt" ; verify_off }
"is already powered OFF" { expect "$prompt" ; verify_off }
timeout "exit 3"
"$prompt" "exit 5" # unrecognized response
}
# do it twice, because otherwise (for some reason) the server may boot up
# again after a few seconds..
send "racadm serveraction powerdown\r"
set timeout 20
expect {
"operation successful" { expect "$prompt" ; verify_off }
"is already powered OFF" { expect "$prompt" ; verify_off }
timeout "exit 3"
"$prompt" "exit 5" # unrecognized response
}
EOF
fi
if [ "$action" = "on" ]; then
cat <<EOF
send "racadm serveraction powerup\r"
set timeout 20
expect {
"operation successful" { expect "$prompt" ; verify_on }
"is already powered ON" { expect "$prompt" ; verify_on }
timeout "exit 3"
"$prompt" "exit 5" # unrecognized response
}
EOF
fi
}
#### Parse arguments ###########################################################
# based on http://stackoverflow.com/a/14203146/688869
ip_port=22
ssh_options=""
be_verbose=0
prompt="/admin1->"
if [[ $# -eq 0 ]]; then
action=off
while read line ; do
key="${line%=*}"
value="${line#*=}"
case $key in
cmd_prompt)
prompt="$value"
;;
ipaddr)
ip_address=$value
;;
ipport)
ip_port=$value
;;
login)
username="$value"
;;
passwd)
password="$value"
;;
secure)
use_ssh=1
;;
esac
done
else
while [[ $# > 0 ]]
do
key="$1"
case $key in
-h|--help)
show_help
;;
-a)
ip_address="$2"
shift
;;
--ip=*)
ip_address="${key#*=}"
;;
-u)
ip_port="$2"
shift
;;
--ipport=*)
ip_port="${key#*=}"
;;
-l)
username="$2"
shift
;;
--username=*)
username="${key#*=}"
;;
-p)
password="$2"
shift
;;
--password=*)
password="${key#*=}"
;;
-c)
prompt="$2"
shift
;;
--command-prompt=*)
prompt="${key#*=}"
;;
-o)
action="$2"
shift
;;
--action=*)
action="${key#*=}"
;;
--ssh-options=*)
ssh_options="${key#*=}"
;;
-x|--ssh)
use_ssh=1
;;
-v|--verbose)
be_verbose=1
;;
-V|--version)
show_version
exit 0
;;
*)
echo "Error: unknown option $key"
show_help
;;
esac
shift # past argument or value
done
fi
[ -z "$ip_address" ] && echo "ERROR: Missing IP address" && show_help
[ -z "$username" ] && echo "ERROR: Missing username" && show_help
[ -z "$password" ] && echo "ERROR: Missing password" && show_help
[ -z "$action" ] && echo "ERROR: Missing action" && show_help
[ ! "$use_ssh" = "1" ] && echo "ERROR: -x option is mandatory" && show_help
#### Check prerequisites #######################################################
which expect >/dev/null
if [ $? -ne 0 ]; then
echo "ERROR: missing 'expect' tool"
exit 2
fi
#### Run `expect' ##############################################################
cmd_fn=/tmp/fence_idrac8-$$.tmp
gen_expect_commands >$cmd_fn
if [ $be_verbose -eq 1 ]; then
echo "===EXPECT SCRIPT======================================================="
cat $cmd_fn
echo "======================================================================="
fi
expect -f $cmd_fn
ec=$?
rm -f $cmd_fn
exit $ec
