Alteon L4 Configuration

alteonl4add.sh

#! /bin/bash
#
# @file: alteonl4add.sh
# @brief: Alteon L4 Configuration
# @author: YoungJoo.Kim <http://vozlt.com>
# @version:
# @date: 20060907

usage() {
	echo "USAGE  :" 
	echo "       $0 [OPTION]... [REAL IP RANGE]..."
	echo
 	echo "OPTION :"
	echo "       -c [start real server number] (default : 1)"
	echo "       -n [server name:start server counter] (default : none)"
 	echo "       -w [weight] (default : 6)"
	echo "       -g [group of real ip] (default : none)"
	echo
	echo "EXAMPLE:"
	echo "       $0 -n web:1 10.10.10.11-43"
    exit 1
}

# Start Real Server Number
rn=1

# Server Name
srv_n=

# Start Server Counter
srv_c=1

# Real IP Range
rip_=

# Weight
wt=6

OPTERR=0

while getopts "c:n:w:g:" Opt
do
	case $Opt in
		c) rn=$OPTARG;;
		n) srv_n=${OPTARG%%:*}; srv_c=${OPTARG##*:};;
		w) wt=$OPTARG;;
		g) gn=$OPTARG;;
		*) usage;;
	esac
done

shift $(($OPTIND - 1))

[ $# -le 0 -o -n "$(printf "$1" | sed s/[0-9.-]//g)" ] && usage
[ -n "$(printf "$srv_c" | sed s/[0-9]//g)" ] && usage

rip_=$1

s=${rip_%%-*}; s=${s##*.}

e=${rip_##*-}; [ -n "$(printf "$e" | sed s/[0-9]//g)" ] && e=$s

sub=${rip_%.*}

[ $s -gt $e ] && usage

for rip in $(seq $s $e)
do

		printf "/cfg/slb/real ${rn}\n"
		printf "         ena\n"
		printf "         rip ${sub}.${rip}\n"
		printf "         weight ${wt}\n"
		[ -n "$srv_n" ]	&& printf "         name \"${srv_n}${srv_c}\"\n"
	
	let "rn++" "srv_c++"

done

if [ -n "$gn" -a -z "$(printf "$gn" | sed s/[0-9]//g)" ]; then

	let "rn-=(e-s+1)"

	printf "/cfg/slb/group ${gn}\n"

	for rip in $(seq $s $e)
	do
		printf "         add ${rn}\n"
		let "rn++"
	done 

fi