tests/net/net_common.sh

#	$NetBSD: net_common.sh,v 1.2 2016/11/24 09:03:53 ozaki-r Exp $
#
# Copyright (c) 2016 Internet Initiative Japan Inc.
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#    notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
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#
# Common utility functions for tests/net
#

HIJACKING="env LD_PRELOAD=/usr/lib/librumphijack.so RUMPHIJACK=sysctl=yes"

extract_new_packets()
{
	local bus=$1
	local old=./.__old

	if [ ! -f $old ]; then
		old=/dev/null
	fi

	shmif_dumpbus -p - $bus 2>/dev/null| \
	    tcpdump -n -e -r - 2>/dev/null > ./.__new
	diff -u $old ./.__new |grep '^+' |cut -d '+' -f 2 > ./.__diff
	mv -f ./.__new ./.__old
	cat ./.__diff
}