1# $FreeBSD$ 2# 3# SPDX-License-Identifier: BSD-2-Clause 4# 5# Copyright (c) 2018 Kristof Provost <kp@FreeBSD.org> 6# 7# Redistribution and use in source and binary forms, with or without 8# modification, are permitted provided that the following conditions 9# are met: 10# 1. Redistributions of source code must retain the above copyright 11# notice, this list of conditions and the following disclaimer. 12# 2. Redistributions in binary form must reproduce the above copyright 13# notice, this list of conditions and the following disclaimer in the 14# documentation and/or other materials provided with the distribution. 15# 16# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26# SUCH DAMAGE. 27 28. $(atf_get_srcdir)/utils.subr 29. $(atf_get_srcdir)/runner.subr 30 31basic_head() 32{ 33 atf_set descr 'Basic IPv4 NAT test' 34 atf_set require.user root 35} 36 37basic_body() 38{ 39 firewall=$1 40 firewall_init $firewall 41 nat_init $firewall 42 43 epair=$(vnet_mkepair) 44 45 vnet_mkjail alcatraz ${epair}b 46 47 ifconfig ${epair}a 192.0.2.2/24 up 48 route add -net 198.51.100.0/24 192.0.2.1 49 50 jexec alcatraz ifconfig ${epair}b 192.0.2.1/24 up 51 jexec alcatraz sysctl net.inet.ip.forwarding=1 52 53 # Enable redirect filter rule 54 firewall_config alcatraz ${firewall} \ 55 "pf" \ 56 "rdr pass on ${epair}b proto tcp from any to 198.51.100.0/24 port 1234 -> 192.0.2.1 port 4321" \ 57 "ipfnat" \ 58 "rdr ${epair}b from any to 198.51.100.0/24 port = 1234 -> 192.0.2.1 port 4321 tcp" 59 60 61 echo "foo" | jexec alcatraz nc -N -l 4321 & 62 sleep 1 63 64 result=$(nc -N -w 3 198.51.100.2 1234) 65 if [ "$result" != "foo" ]; then 66 atf_fail "Redirect failed" 67 fi 68} 69 70basic_cleanup() 71{ 72 firewall=$1 73 firewall_cleanup $firewall 74} 75 76local_redirect_head() 77{ 78 atf_set descr 'Redirect local traffic test' 79 atf_set require.user root 80} 81 82local_redirect_body() 83{ 84 firewall=$1 85 firewall_init $firewall 86 nat_init $firewall 87 88 bridge=$(vnet_mkbridge) 89 ifconfig ${bridge} 192.0.2.1/24 up 90 91 epair1=$(vnet_mkepair) 92 epair2=$(vnet_mkepair) 93 94 vnet_mkjail first ${epair1}b 95 ifconfig ${epair1}a up 96 ifconfig ${bridge} addm ${epair1}a 97 jexec first ifconfig ${epair1}b 192.0.2.2/24 up 98 jexec first ifconfig lo0 127.0.0.1/8 up 99 100 vnet_mkjail second ${epair2}b 101 ifconfig ${epair2}a up 102 ifconfig ${bridge} addm ${epair2}a 103 jexec second ifconfig ${epair2}b 192.0.2.3/24 up 104 jexec second ifconfig lo0 127.0.0.1/8 up 105 jexec second sysctl net.inet.ip.forwarding=1 106 107 # Enable redirect filter rule 108 firewall_config second ${firewall} \ 109 "pf" \ 110 "rdr pass proto tcp from any to 192.0.2.3/24 port 1234 -> 192.0.2.2 port 4321" \ 111 "ipfnat" \ 112 "rdr '*' from any to 192.0.2.3/24 port = 1234 -> 192.0.2.2 port 4321 tcp" 113 114 echo "foo" | jexec first nc -N -l 4321 & 115 sleep 1 116 117 # Verify that second can use its rule to redirect local connections to first 118 result=$(jexec second nc -N -w 3 192.0.2.3 1234) 119 if [ "$result" != "foo" ]; then 120 atf_fail "Redirect failed" 121 fi 122} 123 124local_redirect_cleanup() 125{ 126 firewall=$1 127 firewall_cleanup $firewall 128} 129 130setup_tests \ 131 basic \ 132 pf \ 133 ipfnat \ 134 local_redirect \ 135 pf \ 136 ipfnat 137 138