2019-09-30 21:59:33 +02:00
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#!/usr/bin/env bash
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2019-11-13 14:54:49 +01:00
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UPSTREAM_IFACE=${1:-en0}
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USB_IFACE=''
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USB_IP=${2:-10.0.0.1}
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for i in $(ifconfig -lu); do
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if ifconfig $i | grep -q "${USB_IP}" ; then USB_IFACE=$i; fi;
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done
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if [ -z "$USB_IFACE" ]
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then
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echo "can't find usb interface with ip $USB_IP"
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exit 1
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fi
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echo "sharing connecting from upstream interface $UPSTREAM_IFACE to usb interface $USB_IFACE ..."
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2019-09-30 21:59:33 +02:00
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sysctl -w net.inet.ip.forwarding=1
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pfctl -e
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echo "nat on ${UPSTREAM_IFACE} from ${USB_IFACE}:network to any -> (${UPSTREAM_IFACE})" | pfctl -f -
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