# VNET/jail utility functions
##

list_interface()
{
	echo $1 >> created_interfaces.lst
}

unlist_interface()
{
	sed -i "" /^$1\$/d created_interfaces.lst
}

vnet_init()
{
	if [ "`sysctl -i -n kern.features.vimage`" != 1 ]; then
		atf_skip "This test requires VIMAGE"
	fi
}

vnet_mkepair()
{
	ifname=$(ifconfig epair create)
	list_interface $ifname
	list_interface ${ifname%a}b
	echo ${ifname%a}
}

vnet_mkbridge()
{
	ifname=$(ifconfig bridge create)
	list_interface $ifname
	echo ${ifname}
}

vnet_mkvlan()
{
	ifname=$(ifconfig vlan create)
	list_interface $ifname
	echo ${ifname}
}

vnet_mkloopback()
{
	ifname=$(ifconfig lo create)
	list_interface $ifname
	echo ${ifname}
}

vnet_mkjail()
{
	jailname=$1
	shift

	vnet_interfaces=
	for ifname in $@
	do
		vnet_interfaces="${vnet_interfaces} vnet.interface=${ifname}"
		unlist_interface $ifname
	done
	jail -c name=${jailname} persist vnet ${vnet_interfaces}

	echo $jailname $@ >> created_jails.lst
}

vnet_ifmove()
{
	ifname=$1
	jailname=$2

	ifconfig ${ifname} vnet ${jailname}
	unlist_interface $ifname
	sed -i "" "/^${jailname}/s/\$/ ${ifname}/" created_jails.lst
}

vnet_cleanup()
{
	if [ -f created_jails.lst ]; then
		while read jailname ifnames; do
			for ifname in ${ifnames}; do
				jexec ${jailname} ifconfig ${ifname} destroy
			done
			jail -r ${jailname}
		done < created_jails.lst
		rm created_jails.lst
	fi

	if [ -f created_interfaces.lst ]; then
		for ifname in `cat created_interfaces.lst`
		do
			ifconfig ${ifname} destroy
		done
		rm created_interfaces.lst
	fi
}