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