#!/bin/bash
#
#
# Description:	wrapper of OCF RA Route, based on original heartbeat RA.
#		See OCF RA Route for more information.
#
# Author:	Benjamin Renard <brenard@easter-eggs.com>
# License:      GNU General Public License (GPL)
# Copyright:	(C) 2011 Easter-eggs
#
#	This script manages IP route via a gateway
#
#	It can add an IP route, or remove one.
#
#	usage: $0 ip-network-destination/netmaskbits/ip-gateway \
#	    {start|stop|status|monitor}
#
#	The "start" arg adds an IP route.
#
#	The "stop" arg removes one.
#
DEBUG=0

function usage {
	echo "Usage : $0 [-h|--help] route/cidr/via {start|stop|status}"
}

[ "$1" == "-h" -o "$1" == "--help" ] && usage && exit 0

config=$1

function verif_ip {
	ip="$1"
	[ ! -n "$ip" ] && return 1
	[ "$( echo -n "$ip"|sed "s/[0-9]*\.[0-9]*\.[0-9]*\.[0-9]*//" )" != "" ] && return 1
	o1=$( echo "$ip"|cut -d'.' -f1 )
	[ "$o1" == "" ] && return 2
	[ $o1 -gt 254 ] && return 2
	o2=$( echo "$ip"|cut -d'.' -f2 )
	[ "$o2" == "" ] && return 3
	[ $o2 -gt 254 ] && return 3
	o3=$( echo "$ip"|cut -d'.' -f3 )
	[ "$o3" == "" ] && return 4
	[ $o3 -gt 254 ] && return 4
	o4=$( echo "$ip"|cut -d'.' -f4 )
	[ "$o4" == "" ] && return 5
	[ $o4 -gt 254 ] && return 5
	return 0
}

function verif_cidr {
	cidr="$1"
	[ ! -n "$cidr" ] && return 1
	[ "$( echo -n "$cidr"|sed 's/[0-9]*//' )" != '' ] && return 2
	[ $cidr -gt 32 ] && return 3
	return 0
}

. /etc/ha.d/resource.d//hto-mapfuncs

# Route
route=$( echo "$config"|cut -d'/' -f1 )
[ $DEBUG -eq 1 ] && echo "Route : $route"
verif_ip "$route"
res=$?
[ $res -ne 0 ] &&  echo "[ERROR] Route is not valid" && usage && exit $res 

# CIDR
cidr=$( echo "$config"|cut -d'/' -f2 )
[ $DEBUG -eq 1 ] && echo "CIDR : $cidr"
verif_cidr "$cidr"
res=$?
[ $res -ne 0 ] &&  echo "[ERROR] CIDR is not valid" && usage && exit $res 
export OCF_RESKEY_destination="$route/$cidr"

# Via
via=$( echo "$config"|cut -d'/' -f3 )
[ $DEBUG -eq 1 ] && echo "Via : $via"
verif_ip "$via"
res=$?
[ $res -ne 0 ] &&  echo "[ERROR] Via host is not valid" && usage && exit $res 
export OCF_RESKEY_gateway="$via"

export OCF_TYPE=Route
export OCF_RESOURCE_INSTANCE=${OCF_TYPE}_${OCF_RESKEY_destination}_${OCF_RESKEY_gateway}

ra_execocf $2