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#! /bin/bash
#
# Wrapper around ip link command that handles IPv4, IPv6 and DHCP
# This is done in shell rather than perl to avoid the overhead of recompilation
if [ $# -ne 3 ]; then
echo "Usage: $0 {add|delete} interface address"
exit 1
fi
case $1 in
add)
if [[ "$3" = "dhcp" ]]
then
exec /opt/vyatta/sbin/vyatta-interfaces.pl --dev="$2" --dhcp=start
elif [[ "$3" = "dhcpv6" ]]
then
exec /opt/vyatta/sbin/vyatta-dhcpv6-client.pl --start -ifname "$2"
elif [[ "$3" =~ ":" ]]
then # Ipv6 address
if ! ip -6 addr list dev $2 | grep -q $3; then
exec ip -6 addr add "$3" dev "$2"
fi
else
if ! ip addr list dev $2 | grep -q $3; then
exec ip addr add "$3" broadcast + dev "$2"
fi
fi ;;
delete)
if [ ! -d "/sys/class/net/$2" ]
then # device is already gone
exit 0
elif [[ "$3" = "dhcp" ]]
then
exec /opt/vyatta/sbin/vyatta-interfaces.pl --dev="$2" --dhcp=stop
elif [[ "$3" = "dhcpv6" ]]
then
exec /opt/vyatta/sbin/vyatta-dhcpv6-client.pl --stop --ifname "$2"
elif [[ "$3" =~ ":" ]]
then
exec ip -6 addr del "$3" dev "$2"
else
exec ip addr del "$3" dev "$2"
fi ;;
*)
echo "Unknown option $1"
exit 1 ;;
esac
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