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#!/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
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