#!/bin/sh
#
#    ifup-bond - bonding configuration script
#    Copyright (C) 2014 Marcin Krol <hawk@tld-linux.org>
#
#    This program is free software; you can redistribute it and/or modify
#    it under the terms of the GNU General Public License as published by
#    the Free Software Foundation; either version 2 of the License, or
#    (at your option) any later version.
#
#    This program is distributed in the hope that it will be useful,
#    but WITHOUT ANY WARRANTY; without even the implied warranty of
#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#    GNU General Public License for more details.
#
#    You should have received a copy of the GNU General Public License
#    along with this program; if not, write to the Free Software
#    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
#
#
PATH=/sbin:/usr/sbin:/bin:/usr/bin

. /etc/sysconfig/network
. /etc/rc.d/init.d/functions
. /lib/rc-scripts/functions.network

CONFIG=$1
source_config

if [ "x${2}" = "xboot" ] && is_no "${ONBOOT}"; then
	exit
fi

# check for bonding support
if [ ! -f /sys/class/net/bonding_masters ]; then
	modprobe -s bonding || exit 1
	# delete default bond0
	echo "-bond0" > /sys/class/net/bonding_masters
fi

# set all major variables
setup_ip_param

# create bonding master
if ! grep -wq "${DEVICE}" /sys/class/net/bonding_masters; then
	echo "+${DEVICE}" > /sys/class/net/bonding_masters
	if [ $? -eq 0 ]; then
		ip link set dev ${DEVICE} multicast ${MULTICAST} ${ARP}
	else
		exit 1
	fi
fi

# add the bits to setup driver parameters here
# taken from Fedora initscripts
for arg in ${BONDING_OPTS} ; do
	key=${arg%%=*};
	value=${arg##*=};
	if [ "${key}" = "arp_ip_target" -a "${value:0:1}" != "+" ]; then
		OLDIFS=$IFS;
		IFS=',';
		for arp_ip in $value; do
			if ! grep -q $arp_ip /sys/class/net/${DEVICE}/bonding/$key; then
				echo +$arp_ip > /sys/class/net/${DEVICE}/bonding/$key
			fi
		done
		IFS=$OLDIFS;
	elif [ "${key}" = "arp_ip_target" ]; then
		if ! grep -q ${value#+} /sys/class/net/${DEVICE}/bonding/$key; then
			echo "$value" > /sys/class/net/${DEVICE}/bonding/$key
		fi
	elif [ "${key}" != "primary" ]; then
		echo $value > /sys/class/net/${DEVICE}/bonding/$key
	fi
done