xref: /src/tests/net/ipsec/t_ipsec_l2tp.sh

#	$NetBSD: t_ipsec_l2tp.sh,v 1.1 2017/04/27 06:53:44 ozaki-r 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
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#
# THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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# 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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SOCK_LOCAL=unix://ipsec_l2tp_local
SOCK_TUN_LOCAL=unix://ipsec_l2tp_tunel_local
SOCK_TUN_REMOTE=unix://ipsec_l2tp_tunnel_remote
SOCK_REMOTE=unix://ipsec_l2tp_remote
BUS_LOCAL=./bus_ipsec_local
BUS_TUNNEL=./bus_ipsec_tunnel
BUS_REMOTE=./bus_ipsec_remote

DEBUG=${DEBUG:-false}

make_l2tp_pktstr()
{
	local src=$1
	local dst=$2
	local proto=$3
	local ipproto=$4
	local proto_cap= proto_str=

	if [ $proto = esp ]; then
		proto_cap=ESP
	else
		proto_cap=AH
		if [ $ipproto = ipv4 ]; then
			proto_str="ip-proto-115 102 \(ipip-proto-4\)"
		else
			proto_str="ip-proto-115"
		fi
	fi

	echo "$src > $dst: $proto_cap.+$proto_str"
}

test_ipsec4_l2tp()
{
	local proto=$1
	local algo=$2
	local ip_local=10.0.0.1
	local ip_gw_local_tun=20.0.0.1
	local ip_gw_remote_tun=20.0.0.2
	local ip_remote=10.0.0.2
	local subnet_local=20.0.0.0
	local subnet_remote=20.0.0.0
	local keylen=$(get_one_valid_keylen $algo)
	local key=$(generate_key $keylen)
	local tmpfile=./tmp
	local outfile=./out
	local opt= str=

	if [ $proto = esp ]; then
		opt=-E
	else
		opt=-A
	fi

	# See https://www.netbsd.org/docs/network/ipsec/#sample_vpn
	rump_server_crypto_start $SOCK_LOCAL
	rump_server_crypto_start $SOCK_TUN_LOCAL netipsec l2tp bridge
	rump_server_crypto_start $SOCK_TUN_REMOTE netipsec l2tp bridge
	rump_server_crypto_start $SOCK_REMOTE
	rump_server_add_iface $SOCK_LOCAL shmif0 $BUS_LOCAL
	rump_server_add_iface $SOCK_TUN_LOCAL shmif0 $BUS_LOCAL
	rump_server_add_iface $SOCK_TUN_LOCAL shmif1 $BUS_TUNNEL
	rump_server_add_iface $SOCK_TUN_REMOTE shmif0 $BUS_REMOTE
	rump_server_add_iface $SOCK_TUN_REMOTE shmif1 $BUS_TUNNEL
	rump_server_add_iface $SOCK_REMOTE shmif0 $BUS_REMOTE

	export RUMP_SERVER=$SOCK_LOCAL
	atf_check -s exit:0 rump.ifconfig shmif0 $ip_local/24

	export RUMP_SERVER=$SOCK_TUN_LOCAL
	atf_check -s exit:0 rump.ifconfig shmif0 up
	atf_check -s exit:0 rump.ifconfig shmif1 $ip_gw_local_tun/24
	atf_check -s exit:0 rump.ifconfig l2tp0 create
	atf_check -s exit:0 rump.ifconfig l2tp0 \
	    tunnel $ip_gw_local_tun $ip_gw_remote_tun
	atf_check -s exit:0 rump.ifconfig l2tp0 session 1234 4321
	atf_check -s exit:0 rump.ifconfig l2tp0 up
	atf_check -s exit:0 rump.ifconfig bridge0 create
	atf_check -s exit:0 rump.ifconfig bridge0 up
	atf_check -s exit:0 $HIJACKING brconfig bridge0 add l2tp0
	atf_check -s exit:0 $HIJACKING brconfig bridge0 add shmif0

	export RUMP_SERVER=$SOCK_TUN_REMOTE
	atf_check -s exit:0 rump.ifconfig shmif0 up
	atf_check -s exit:0 rump.ifconfig shmif1 $ip_gw_remote_tun/24
	atf_check -s exit:0 rump.ifconfig l2tp0 create
	atf_check -s exit:0 rump.ifconfig l2tp0 \
	    tunnel $ip_gw_remote_tun $ip_gw_local_tun
	atf_check -s exit:0 rump.ifconfig l2tp0 session 4321 1234
	atf_check -s exit:0 rump.ifconfig l2tp0 up
	atf_check -s exit:0 rump.ifconfig bridge0 create
	atf_check -s exit:0 rump.ifconfig bridge0 up
	atf_check -s exit:0 $HIJACKING brconfig bridge0 add l2tp0
	atf_check -s exit:0 $HIJACKING brconfig bridge0 add shmif0

	export RUMP_SERVER=$SOCK_REMOTE
	atf_check -s exit:0 rump.ifconfig shmif0 $ip_remote/24
	# Run ifconfig -w 10 just once for optimization
	atf_check -s exit:0 rump.ifconfig -w 10

	extract_new_packets $BUS_TUNNEL > $outfile

	export RUMP_SERVER=$SOCK_LOCAL
	atf_check -s exit:0 -o ignore rump.ping -c 1 -n -w 3 $ip_remote

	extract_new_packets $BUS_TUNNEL > $outfile
	atf_check -s exit:0 \
	    -o match:"$ip_gw_local_tun > $ip_gw_remote_tun: +ip-proto-115" \
	    cat $outfile
	atf_check -s exit:0 \
	    -o match:"$ip_gw_remote_tun > $ip_gw_local_tun: +ip-proto-115" \
	    cat $outfile

	export RUMP_SERVER=$SOCK_TUN_LOCAL
	# from https://www.netbsd.org/docs/network/ipsec/
	cat > $tmpfile <<-EOF
	add $ip_gw_local_tun $ip_gw_remote_tun $proto 10000 $opt $algo $key;
	add $ip_gw_remote_tun $ip_gw_local_tun $proto 10001 $opt $algo $key;
	spdadd $subnet_local/24 $subnet_remote/24 any -P out ipsec
	    $proto/tunnel/$ip_gw_local_tun-$ip_gw_remote_tun/require;
	spdadd $subnet_remote/24 $subnet_local/24 any -P in ipsec
	    $proto/tunnel/$ip_gw_remote_tun-$ip_gw_local_tun/require;
	EOF
	$DEBUG && cat $tmpfile
	atf_check -s exit:0 -o empty $HIJACKING setkey -c < $tmpfile
	$DEBUG && $HIJACKING setkey -D
	atf_check -s exit:0 -o match:"$ip_gw_local_tun $ip_gw_remote_tun" \
	    $HIJACKING setkey -D
	atf_check -s exit:0 -o match:"$ip_gw_remote_tun $ip_gw_local_tun" \
	    $HIJACKING setkey -D
	# TODO: more detail checks

	export RUMP_SERVER=$SOCK_TUN_REMOTE
	cat > $tmpfile <<-EOF
	add $ip_gw_local_tun $ip_gw_remote_tun $proto 10000 $opt $algo $key;
	add $ip_gw_remote_tun $ip_gw_local_tun $proto 10001 $opt $algo $key;
	spdadd $subnet_remote/24 $subnet_local/24 any -P out ipsec
	    $proto/tunnel/$ip_gw_remote_tun-$ip_gw_local_tun/require;
	spdadd $subnet_local/24 $subnet_remote/24 any -P in ipsec
	    $proto/tunnel/$ip_gw_local_tun-$ip_gw_remote_tun/require;
	EOF
	$DEBUG && cat $tmpfile
	atf_check -s exit:0 -o empty $HIJACKING setkey -c < $tmpfile
	$DEBUG && $HIJACKING setkey -D
	atf_check -s exit:0 -o match:"$ip_gw_local_tun $ip_gw_remote_tun" \
	    $HIJACKING setkey -D
	atf_check -s exit:0 -o match:"$ip_gw_remote_tun $ip_gw_local_tun" \
	    $HIJACKING setkey -D
	# TODO: more detail checks

	export RUMP_SERVER=$SOCK_LOCAL
	atf_check -s exit:0 -o ignore rump.ping -c 1 -n -w 3 $ip_remote

	extract_new_packets $BUS_TUNNEL > $outfile
	str=$(make_l2tp_pktstr $ip_gw_local_tun $ip_gw_remote_tun $proto ipv4)
	atf_check -s exit:0 -o match:"$str" cat $outfile
	str=$(make_l2tp_pktstr $ip_gw_remote_tun $ip_gw_local_tun $proto ipv4)
	atf_check -s exit:0 -o match:"$str" cat $outfile
}

test_ipsec6_l2tp()
{
	local proto=$1
	local algo=$2
	local ip_local=fd00::1
	local ip_gw_local_tun=fc00::1
	local ip_gw_remote_tun=fc00::2
	local ip_remote=fd00::2
	local subnet_local=fc00::
	local subnet_remote=fc00::
	local keylen=$(get_one_valid_keylen $algo)
	local key=$(generate_key $keylen)
	local tmpfile=./tmp
	local outfile=./out
	local opt= str=

	if [ $proto = esp ]; then
		opt=-E
	else
		opt=-A
	fi

	rump_server_crypto_start $SOCK_LOCAL netinet6
	rump_server_crypto_start $SOCK_TUN_LOCAL netipsec netinet6 l2tp bridge
	rump_server_crypto_start $SOCK_TUN_REMOTE netipsec netinet6 l2tp bridge
	rump_server_crypto_start $SOCK_REMOTE netinet6
	rump_server_add_iface $SOCK_LOCAL shmif0 $BUS_LOCAL
	rump_server_add_iface $SOCK_TUN_LOCAL shmif0 $BUS_LOCAL
	rump_server_add_iface $SOCK_TUN_LOCAL shmif1 $BUS_TUNNEL
	rump_server_add_iface $SOCK_TUN_REMOTE shmif0 $BUS_REMOTE
	rump_server_add_iface $SOCK_TUN_REMOTE shmif1 $BUS_TUNNEL
	rump_server_add_iface $SOCK_REMOTE shmif0 $BUS_REMOTE

	export RUMP_SERVER=$SOCK_LOCAL
	atf_check -s exit:0 rump.ifconfig shmif0 inet6 $ip_local/64

	export RUMP_SERVER=$SOCK_TUN_LOCAL
	atf_check -s exit:0 rump.ifconfig shmif0 up
	atf_check -s exit:0 rump.ifconfig shmif1 inet6 $ip_gw_local_tun/64
	atf_check -s exit:0 rump.ifconfig l2tp0 create
	atf_check -s exit:0 rump.ifconfig l2tp0 \
	    tunnel $ip_gw_local_tun $ip_gw_remote_tun
	atf_check -s exit:0 rump.ifconfig l2tp0 session 1234 4321
	atf_check -s exit:0 rump.ifconfig l2tp0 up
	atf_check -s exit:0 rump.ifconfig bridge0 create
	atf_check -s exit:0 rump.ifconfig bridge0 up
	atf_check -s exit:0 $HIJACKING brconfig bridge0 add l2tp0
	atf_check -s exit:0 $HIJACKING brconfig bridge0 add shmif0

	export RUMP_SERVER=$SOCK_TUN_REMOTE
	atf_check -s exit:0 rump.ifconfig shmif0 up
	atf_check -s exit:0 rump.ifconfig shmif1 inet6 $ip_gw_remote_tun/64
	atf_check -s exit:0 rump.ifconfig l2tp0 create
	atf_check -s exit:0 rump.ifconfig l2tp0 \
	    tunnel $ip_gw_remote_tun $ip_gw_local_tun
	atf_check -s exit:0 rump.ifconfig l2tp0 session 4321 1234
	atf_check -s exit:0 rump.ifconfig l2tp0 up
	atf_check -s exit:0 rump.ifconfig bridge0 create
	atf_check -s exit:0 rump.ifconfig bridge0 up
	atf_check -s exit:0 $HIJACKING brconfig bridge0 add l2tp0
	atf_check -s exit:0 $HIJACKING brconfig bridge0 add shmif0

	export RUMP_SERVER=$SOCK_REMOTE
	atf_check -s exit:0 rump.ifconfig shmif0 inet6 $ip_remote
	# Run ifconfig -w 10 just once for optimization
	atf_check -s exit:0 rump.ifconfig -w 10

	extract_new_packets $BUS_TUNNEL > $outfile

	export RUMP_SERVER=$SOCK_LOCAL
	atf_check -s exit:0 -o ignore rump.ping6 -c 1 -n -X 3 $ip_remote

	extract_new_packets $BUS_TUNNEL > $outfile
	atf_check -s exit:0 \
	    -o match:"$ip_gw_local_tun > $ip_gw_remote_tun: +ip-proto-115" \
	    cat $outfile
	atf_check -s exit:0 \
	    -o match:"$ip_gw_remote_tun > $ip_gw_local_tun: +ip-proto-115" \
	    cat $outfile

	export RUMP_SERVER=$SOCK_TUN_LOCAL
	# from https://www.netbsd.org/docs/network/ipsec/
	cat > $tmpfile <<-EOF
	add $ip_gw_local_tun $ip_gw_remote_tun $proto 10000 $opt $algo $key;
	add $ip_gw_remote_tun $ip_gw_local_tun $proto 10001 $opt $algo $key;
	spdadd $subnet_local/64 $subnet_remote/64 any -P out ipsec
	    $proto/tunnel/$ip_gw_local_tun-$ip_gw_remote_tun/require;
	spdadd $subnet_remote/64 $subnet_local/64 any -P in ipsec
	    $proto/tunnel/$ip_gw_remote_tun-$ip_gw_local_tun/require;
	EOF
	$DEBUG && cat $tmpfile
	atf_check -s exit:0 -o empty $HIJACKING setkey -c < $tmpfile
	$DEBUG && $HIJACKING setkey -D
	atf_check -s exit:0 -o match:"$ip_gw_local_tun $ip_gw_remote_tun" \
	    $HIJACKING setkey -D
	atf_check -s exit:0 -o match:"$ip_gw_remote_tun $ip_gw_local_tun" \
	    $HIJACKING setkey -D
	# TODO: more detail checks

	export RUMP_SERVER=$SOCK_TUN_REMOTE
	cat > $tmpfile <<-EOF
	add $ip_gw_local_tun $ip_gw_remote_tun $proto 10000 $opt $algo $key;
	add $ip_gw_remote_tun $ip_gw_local_tun $proto 10001 $opt $algo $key;
	spdadd $subnet_remote/64 $subnet_local/64 any -P out ipsec
	    $proto/tunnel/$ip_gw_remote_tun-$ip_gw_local_tun/require;
	spdadd $subnet_local/64 $subnet_remote/64 any -P in ipsec
	    $proto/tunnel/$ip_gw_local_tun-$ip_gw_remote_tun/require;
	EOF
	$DEBUG && cat $tmpfile
	atf_check -s exit:0 -o empty $HIJACKING setkey -c < $tmpfile
	$DEBUG && $HIJACKING setkey -D
	atf_check -s exit:0 -o match:"$ip_gw_local_tun $ip_gw_remote_tun" \
	    $HIJACKING setkey -D
	atf_check -s exit:0 -o match:"$ip_gw_remote_tun $ip_gw_local_tun" \
	    $HIJACKING setkey -D
	# TODO: more detail checks

	export RUMP_SERVER=$SOCK_LOCAL
	atf_check -s exit:0 -o ignore rump.ping6 -c 1 -n -X 3 $ip_remote

	extract_new_packets $BUS_TUNNEL > $outfile
	str=$(make_l2tp_pktstr $ip_gw_local_tun $ip_gw_remote_tun $proto ipv6)
	atf_check -s exit:0 -o match:"$str" cat $outfile
	str=$(make_l2tp_pktstr $ip_gw_remote_tun $ip_gw_local_tun $proto ipv6)
	atf_check -s exit:0 -o match:"$str" cat $outfile
}

test_ipsec_l2tp_common()
{
	local ipproto=$1
	local proto=$2
	local algo=$3

	if [ $ipproto = ipv4 ]; then
		test_ipsec4_l2tp $proto $algo
	else
		test_ipsec6_l2tp $proto $algo
	fi
}

add_test_ipsec_l2tp()
{
	local ipproto=$1
	local proto=$2
	local algo=$3
	local _algo=$(echo $algo | sed 's/-//g')
	local name= desc=

	name="ipsec_l2tp_${ipproto}_${proto}_${_algo}"
	desc="Tests of IPsec ($ipproto) tunnel mode (l2tp) with $proto ($algo)"

	atf_test_case ${name} cleanup
	eval "								\
	    ${name}_head() {						\
	        atf_set \"descr\" \"$desc\";				\
	        atf_set \"require.progs\" \"rump_server\" \"setkey\";	\
	    };								\
	    ${name}_body() {						\
	        test_ipsec_l2tp_common $ipproto $proto $algo;		\
	        rump_server_destroy_ifaces;				\
	    };								\
	    ${name}_cleanup() {						\
	        $DEBUG && dump;						\
	        cleanup;						\
	    }								\
	"
	atf_add_test_case ${name}
}

atf_init_test_cases()
{
	local algo=

	for algo in $ESP_ENCRYPTION_ALGORITHMS_MINIMUM; do
		add_test_ipsec_l2tp ipv4 esp $algo
		add_test_ipsec_l2tp ipv6 esp $algo
	done

	for algo in $AH_AUTHENTICATION_ALGORITHMS_MINIMUM; do
		add_test_ipsec_l2tp ipv4 ah $algo
		add_test_ipsec_l2tp ipv6 ah $algo
	done
}