#!/bin/sh set -eu # guessing parameters case "$IFACE" in *:*) exit 0 ;; *.*) exit 0 ;; vlan*) exit 0 ;; *#[0-9]*) GUESSED_RAW_DEVICE="${IFACE%#*}" ;; *) [ -n "${IF_MVLAN_RAW_DEVICE:-}" ] || exit 0 ;; esac RAW_DEVICE="${IF_MVLAN_RAW_DEVICE:-${GUESSED_RAW_DEVICE:-}}" if [ -z "$RAW_DEVICE" ]; then echo "RAW_DEVICE for $IFACE is not set" exit 1 fi if ! ip link show dev "$RAW_DEVICE" >/dev/null; then echo "Device $RAW_DEVICE for $IFACE does not exist" exit 1 fi ip link delete dev "$IFACE" type macvlan