openmptcprouter-feeds/luci-app-openmptcprouter/root/bin/omr-tracebox-mptcp

#!/bin/sh
INTERFACE=$2
SERVER=$1
if [ -n "$(resolveip -4 $SERVER)" ]; then
	if [ -z "$INTERFACE" ]; then
		tracebox -m 20 -l "pkt = ip{dst=to} / tcp{dst=65101} / MPCAPABLE / MSS / WSCALE if string.find(tostring(tracebox(pkt)),'-TCPOptionMPTCPCapable') then print 'MPTCP disabled' elseif string.find(tostring(tracebox(pkt)),'MPTCP') then print 'MPTCP enabled' end" $SERVER
	else
		tracebox -m 20 -l "pkt = ip{dst=to} / tcp{dst=65101} / MPCAPABLE / MSS / WSCALE if string.find(tostring(tracebox(pkt)),'-TCPOptionMPTCPCapable') then print 'MPTCP disabled' elseif string.find(tostring(tracebox(pkt)),'MPTCP') then print 'MPTCP enabled' end" -i $INTERFACE $SERVER
	fi
else
	if [ -z "$INTERFACE" ]; then
		tracebox -6 -m 20 -l "pkt = ip{dst=to} / tcp{dst=65101} / MPCAPABLE / MSS / WSCALE if string.find(tostring(tracebox(pkt)),'-TCPOptionMPTCPCapable') then print 'MPTCP disabled' elseif string.find(tostring(tracebox(pkt)),'MPTCP') then print 'MPTCP enabled' end" $SERVER
	else
		tracebox -6 -m 20 -l "pkt = ip{dst=to} / tcp{dst=65101} / MPCAPABLE / MSS / WSCALE if string.find(tostring(tracebox(pkt)),'-TCPOptionMPTCPCapable') then print 'MPTCP disabled' elseif string.find(tostring(tracebox(pkt)),'MPTCP') then print 'MPTCP enabled' end" -i $INTERFACE $SERVER
	fi
fi