zeth-multiface.conf

# Configuration file for setting IP addresses for multiple network interface.

INTERFACE_PREFIX="$1"

HWADDR_PREFIX="00:00:5e:00:53:"

IPV6_ADDR_PREFIX0="2001:db8::"
IPV6_ROUTE0="2001:db8::/64"

IPV6_ADDR_PREFIX1="2001:db8:2::"
IPV6_ROUTE1="2001:db8:2::/64"

IPV4_ADDR_PREFIX0="192.0.2."
IPV4_ADDR_PREFIX1="198.51.100."

INTERFACE0=${INTERFACE_PREFIX}
INTERFACE1=`echo ${INTERFACE_PREFIX} | sed "s/0/1/g"`

IPV4_ROUTE0="${IPV4_ADDR_PREFIX0}0/24"
IPV4_ROUTE1="${IPV4_ADDR_PREFIX1}0/24"

# The zeth0 is already created by net-setup script so avoid
# doing it twice.
ip link set dev ${INTERFACE0} up
ip link set dev ${INTERFACE0} address ${HWADDR_PREFIX}0
ip -6 address add ${IPV6_ADDR_PREFIX0}2 dev $INTERFACE0 nodad
ip -6 route add $IPV6_ROUTE0 dev $INTERFACE0
ip address add ${IPV4_ADDR_PREFIX0}2 dev $INTERFACE0
ip route add $IPV4_ROUTE0 dev $INTERFACE0 2>&1

COUNT=${COUNTER:-2}

INTERFACE_TMPL=`echo ${INTERFACE_PREFIX} | sed "s/0//g"`

for ((i = 1; i < $COUNT; i++ )); {
	iface_idx=$i
	INTERFACE=${INTERFACE_TMPL}${iface_idx}

	ip tuntap add ${INTERFACE} mode tap
	ip link set dev ${INTERFACE} up

	# If there are config options then try to apply them.
	# TODO: this should be changed to use a yaml file or similar.
	VAR_CHECK="INTERFACE${iface_idx}"
	if [ -n "${!VAR_CHECK}" ]; then
	    ip link set dev ${INTERFACE} address ${HWADDR_PREFIX}${iface_idx}
	    VAR=IPV6_ADDR_PREFIX${iface_idx}
	    ip -6 address add ${!VAR}${iface_idx} dev ${INTERFACE} nodad
	    VAR=IPV6_ROUTE${iface_idx}
	    ip -6 route add ${!VAR} dev ${INTERFACE}
	    VAR=IPV4_ADDR_PREFIX${iface_idx}
	    ip address add ${!VAR}${iface_idx} dev ${INTERFACE}
	    VAR=IPV4_ROUTE${iface_idx}
	    ip route add ${!VAR} dev ${INTERFACE} 2>&1
	fi
}