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#!/bin/sh
# The point of this script is to restore jail aliases
# if the lan0 interface flaps
if_lan="lan0"
ipv4_out="$(ifconfig lan0 | grep "inet " | grep -v "0xffffffff")"
ipv4_lan="$(echo "${ipv4_out}" | awk '{ print $2 }')"
ipv4_mask="$(echo "${ipv4_out}" | awk '{ print $4 }')"
if ! [ "$ipv4_mask" = "0xffff0000" ]; then
>&2 echo "Unexpected netmask on lan0: ${ipv4_mask}"
exit 1
fi
jls ip4.addr | while read ip; do
case "$ip" in
"192.168"*) ;;
*) continue ;;
esac
if ifconfig "$if_lan" | grep -q "$ip"; then
continue
fi
echo "Re-adding $ip to $if_lan"
ifconfig "$if_lan" inet "$ip/32" alias
done
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