owrtconfig.sh

#!/bin/sh

ME="owrtconfig.sh"
VER="0.05"

_error() {
	echo "$ME: $*"
	exit 1
}

_usage() {
  cat <<__END_OF_USAGE
$ME v$VER

Usage: $ME OPTIONS -H HOSTS -C COMMANDS

  -P PROTOCOL   protocol used to connect on each node (ssh or telnet, default: ssh)
  -H HOSTS      file containing hosts list (hwaddr,param1,param2...param9)
  -C COMMANDS   file containing commands to be run on each host
  -a ADDRESS    default IP address of each host (default: 192.168.1.1)
  -n LINES      lines to skip from remote output (default: 0)
  -s            use sudo (when you're not running this script as root)
  -v            be verbose

  -h            display usage information (this help screen)
  -V            display version information

__END_OF_USAGE
}

_version() {
  cat <<__END_OF_VERSION
$ME v$VER
__END_OF_VERSION
}

_parse_args() {
	IP="192.168.1.1"
	PROTOCOL_FUNC="_ssh"
	SKIP_LINE_COUNT=0
	VERBOSITY_LEVEL=0
	while [ -n "$1" ]; do
		case $1 in
		  -P|--protocol)
			shift
			case $1 in
			  ssh)
				PROTOCOL_FUNC="_ssh"
				;;
			  telnet)
				PROTOCOL_FUNC="_telnet"
				;;
			  *)
				_error "unknow protocol '$1'"
				;;
			esac
			
			;;
		  -H|--hosts)
			shift
			HOSTS_F="$1"
			;;
		  -C|--commands)
			shift
			COMMANDS_F="$1"
			;;
		  -a)
			shift
			IP="$1"
			;;
		  -n)
			shift
			SKIP_LINE_COUNT="$1"
			;;
		  -s|--sudo)
			SUDO_FUNC="sudo"
			;;
		  -h|--help)
			_usage
			exit 0
			;;
		  -v|--verbose)
			VERBOSITY_LEVEL=$(($VERBOSITY_LEVEL + 1))
			;;
		  -V|--version)
			_version
			exit 0
			;;
		  *)
			_error "unexpected argument '$1'"
			;;
		esac
		shift
	done
}

_parse_args $*

[ -n "$HOSTS_F" ] \
	|| _error "missing '-H HOSTS' argument"
[ -n "$COMMANDS_F" ] \
	|| _error "missing '-C COMMANDS' argument"
[ -f "$HOSTS_F" ] \
	|| _error "error accessing HOSTS file '$HOSTS_F'"
[ -f "$COMMANDS_F" ] \
	|| _error "error accessing COMMANDS file '$COMMANDS_F'"

_ssh( )
{
	ssh -T -o "StrictHostKeyChecking no" -o "UserKnownHostsFile /dev/null" root@"$IP" 2>&1
}

_telnet( )
{
	nc -i 1 -q -1 -t "$IP" 23 2>&1
}

if [ -n "$SUDO_FUNC" ]; then
	echo "** checking sudo..."
	$SUDO_FUNC true || exit 1
fi

echo "** looping over nodes..."
IFS_OLD="$IFS"
IFS_NEW=","
IFS="$IFS_NEW"
cat $HOSTS_F | grep -v '^#' |  sed -e 's/ *, */,/g' -e's/\//###/g' -e 's/\&\&/####/g'  | while read mac param1 param2 param3 param4 param5 param6 param7 param8 param9; do
	IFS="$IFS_OLD"
	echo -n "-- mac: $mac -- " 1>&2
	$SUDO_FUNC arp -s $IP $mac >/dev/null
	ping -c 1 -q -r -t 1 $IP >/dev/null
	if [ $? -eq 0 ]; then
		echo "alive! --" 1>&2
		if [ $VERBOSITY_LEVEL -gt 0 ]; then
			echo "** parameters: [$mac] [$param1] [$param2] [$param3] [$param4] [$param5] [$param6] [$param7] [$param8] [$param9]" 1>&2
		fi
		cat $COMMANDS_F \
			| sed -e "s/@MAC@/$mac/g" \
			      -e "s/@PARAM1@/$param1/g" \
			      -e "s/@PARAM2@/$param2/g" \
			      -e "s/@PARAM3@/$param3/g" \
			      -e "s/@PARAM4@/$param4/g" \
			      -e "s/@PARAM5@/$param5/g" \
			      -e "s/@PARAM6@/$param6/g" \
			      -e "s/@PARAM7@/$param7/g" \
			      -e "s/@PARAM8@/$param8/g" \
			      -e "s/@PARAM9@/$param9/g" \
			      -e "s/####/\&\&/g" \
			      -e "s/###/\//g" \
		| $PROTOCOL_FUNC | tail -n +$SKIP_LINE_COUNT
	else
		echo "not found! ---" 1>&2
	fi
	$SUDO_FUNC arp -d $IP >/dev/null
	IFS="$IFS_NEW"
done
IFS="$IFS_OLD"
echo "** done!"