#	$NetBSD: common.sh,v 1.7.6.1 2020/11/10 11:44:22 martin Exp $
#
# Copyright (c) 2017 Internet Initiative Japan Inc.
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer in the
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#
# THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
# ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
# TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
# PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
#

HIJACKING_NPF="${HIJACKING},blanket=/dev/npf"

test_flush_entries()
{
	local sock=$1

	export RUMP_SERVER=$sock

	atf_check -s exit:0 -o empty $HIJACKING setkey -F
	atf_check -s exit:0 -o empty $HIJACKING setkey -F -P
	atf_check -s exit:0 -o match:"No SAD entries." $HIJACKING setkey -D -a
	atf_check -s exit:0 -o match:"No SPD entries." $HIJACKING setkey -D -P
}

check_sa_entries()
{
	local sock=$1
	local local_addr=$2
	local remote_addr=$3

	export RUMP_SERVER=$sock

	$DEBUG && $HIJACKING setkey -D

	atf_check -s exit:0 -o match:"$local_addr $remote_addr" \
	    $HIJACKING setkey -D
	atf_check -s exit:0 -o match:"$remote_addr $local_addr" \
	    $HIJACKING setkey -D
	# TODO: more detail checks
}

check_sp_entries()
{
	local sock=$1
	local local_addr=$2
	local remote_addr=$3

	export RUMP_SERVER=$sock

	$DEBUG && $HIJACKING setkey -D -P

	atf_check -s exit:0 \
	    -o match:"$local_addr\[any\] $remote_addr\[any\] 255\(reserved\)" \
	    $HIJACKING setkey -D -P
	atf_check -s exit:0 \
	    -o match:"$remote_addr\[any\] $local_addr\[any\] 255\(reserved\)" \
	    $HIJACKING setkey -D -P
	# TODO: more detail checks
}

generate_pktproto()
{
	local proto=$1

	if [ $proto = ipcomp ]; then
		echo IPComp
	else
		echo $proto | tr 'a-z' 'A-Z'
	fi
}

get_natt_port()
{
	local local_addr=$1
	local remote_addr=$2
	local port=""

	# 10.0.1.2:4500         20.0.0.2:4500         shmif1     20.0.0.1:35574
	port=$($HIJACKING_NPF npfctl list | grep $local_addr | awk -F "${remote_addr}:" '/4500/ {print $2;}')
	echo $port
}