2 # SPDX-License-Identifier: BSD-2-Clause
4 # Copyright (c) 2019 Ahsan Barkati
6 # Redistribution and use in source and binary forms, with or without
7 # modification, are permitted provided that the following conditions
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.
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
29 . $(atf_get_srcdir)/utils.subr
30 . $(atf_get_srcdir)/runner.subr
34 atf_set descr 'Basic IPv4 NAT test'
35 atf_set require.user root
41 firewall_init $firewall
44 epair_host_nat=$(vnet_mkepair)
45 epair_client1_nat=$(vnet_mkepair)
46 epair_client2_nat=$(vnet_mkepair)
48 vnet_mkjail nat ${epair_host_nat}b ${epair_client1_nat}a ${epair_client2_nat}a
49 vnet_mkjail client1 ${epair_client1_nat}b
50 vnet_mkjail client2 ${epair_client2_nat}b
52 ifconfig ${epair_host_nat}a 198.51.100.2/24 up
53 jexec nat ifconfig ${epair_host_nat}b 198.51.100.1/24 up
55 jexec nat ifconfig ${epair_client1_nat}a 192.0.2.1/24 up
56 jexec client1 ifconfig ${epair_client1_nat}b 192.0.2.2/24 up
58 jexec nat ifconfig ${epair_client2_nat}a 192.0.3.1/24 up
59 jexec client2 ifconfig ${epair_client2_nat}b 192.0.3.2/24 up
61 jexec nat sysctl net.inet.ip.forwarding=1
63 jexec client1 route add -net 198.51.100.0/24 192.0.2.1
64 jexec client2 route add -net 198.51.100.0/24 192.0.3.1
66 # ping fails without NAT configuration
67 atf_check -s exit:2 -o ignore jexec client1 ping -t 1 -c 1 198.51.100.2
68 atf_check -s exit:2 -o ignore jexec client2 ping -t 1 -c 1 198.51.100.2
70 firewall_config nat ${firewall} \
72 "nat pass on ${epair_host_nat}b inet from any to any -> (${epair_host_nat}b)" \
74 "ipfw -q nat 123 config if ${epair_host_nat}b" \
75 "ipfw -q add 1000 nat 123 all from any to any" \
77 "map ${epair_host_nat}b 192.0.3.0/24 -> 0/32" \
78 "map ${epair_host_nat}b 192.0.2.0/24 -> 0/32" \
81 # ping is successful now
82 atf_check -s exit:0 -o ignore jexec client1 ping -t 1 -c 1 198.51.100.2
83 atf_check -s exit:0 -o ignore jexec client2 ping -t 1 -c 1 198.51.100.2
90 firewall_cleanup $firewall
95 atf_set descr 'Nat test for ipfw using userspace natd'
96 atf_set require.user root
101 firewall_init $firewall
103 if ! kldstat -q -m ipdivert; then
104 atf_skip "This test requires ipdivert module loaded"
107 epair_host_nat=$(vnet_mkepair)
108 epair_client1_nat=$(vnet_mkepair)
109 epair_client2_nat=$(vnet_mkepair)
111 vnet_mkjail nat ${epair_host_nat}b ${epair_client1_nat}a ${epair_client2_nat}a
112 vnet_mkjail client1 ${epair_client1_nat}b
113 vnet_mkjail client2 ${epair_client2_nat}b
115 ifconfig ${epair_host_nat}a 198.51.100.2/24 up
116 jexec nat ifconfig ${epair_host_nat}b 198.51.100.1/24 up
118 jexec nat ifconfig ${epair_client1_nat}a 192.0.2.1/24 up
119 jexec client1 ifconfig ${epair_client1_nat}b 192.0.2.2/24 up
121 jexec nat ifconfig ${epair_client2_nat}a 192.0.3.1/24 up
122 jexec client2 ifconfig ${epair_client2_nat}b 192.0.3.2/24 up
124 jexec nat sysctl net.inet.ip.forwarding=1
126 jexec client1 route add -net 198.51.100.0/24 192.0.2.1
127 jexec client2 route add -net 198.51.100.0/24 192.0.3.1
128 # Test the userspace NAT of ipfw
129 # ping fails without NAT configuration
130 atf_check -s exit:2 -o ignore jexec client1 ping -t 1 -c 1 198.51.100.2
131 atf_check -s exit:2 -o ignore jexec client2 ping -t 1 -c 1 198.51.100.2
133 firewall_config nat ${firewall} \
135 "natd -interface ${epair_host_nat}b" \
136 "ipfw -q add divert natd all from any to any via ${epair_host_nat}b" \
138 # ping is successful now
139 atf_check -s exit:0 -o ignore jexec client1 ping -t 1 -c 1 198.51.100.2
140 atf_check -s exit:0 -o ignore jexec client2 ping -t 1 -c 1 198.51.100.2
143 userspace_nat_cleanup()
146 firewall_cleanup $firewall
152 firewall_init $firewall
155 epair_host_nat=$(vnet_mkepair)
156 epair_client1_nat=$(vnet_mkepair)
157 epair_client2_nat=$(vnet_mkepair)
159 vnet_mkjail nat ${epair_host_nat}b ${epair_client1_nat}a ${epair_client2_nat}a
160 vnet_mkjail client1 ${epair_client1_nat}b
161 vnet_mkjail client2 ${epair_client2_nat}b
163 ifconfig ${epair_host_nat}a 198.51.100.2/24 up
164 jexec nat ifconfig ${epair_host_nat}b 198.51.100.1/24 up
166 jexec nat ifconfig ${epair_client1_nat}a 100.64.0.1/24 up
167 jexec client1 ifconfig ${epair_client1_nat}b 100.64.0.2/24 up
169 jexec nat ifconfig ${epair_client2_nat}a 100.64.1.1/24 up
170 jexec client2 ifconfig ${epair_client2_nat}b 100.64.1.2/24 up
172 jexec nat sysctl net.inet.ip.forwarding=1
174 jexec client1 route add -net 198.51.100.0/24 100.64.0.1
175 jexec client2 route add -net 198.51.100.0/24 100.64.1.1
177 # ping fails without NAT configuration
178 atf_check -s exit:2 -o ignore jexec client1 ping -t 1 -c 1 198.51.100.2
179 atf_check -s exit:2 -o ignore jexec client2 ping -t 1 -c 1 198.51.100.2
181 if [[ $portalias ]]; then
182 firewall_config nat $firewall \
184 "ipfw -q nat 123 config if ${epair_host_nat}b unreg_cgn port_alias 2000-2999" \
185 "ipfw -q nat 456 config if ${epair_host_nat}b unreg_cgn port_alias 3000-3999" \
186 "ipfw -q add 1000 nat 123 all from any to 198.51.100.2 2000-2999 in via ${epair_host_nat}b" \
187 "ipfw -q add 2000 nat 456 all from any to 198.51.100.2 3000-3999 in via ${epair_host_nat}b" \
188 "ipfw -q add 3000 nat 123 all from 100.64.0.2 to any out via ${epair_host_nat}b" \
189 "ipfw -q add 4000 nat 456 all from 100.64.1.2 to any out via ${epair_host_nat}b"
191 firewall_config nat $firewall \
193 "ipfw -q nat 123 config if ${epair_host_nat}b unreg_cgn" \
194 "ipfw -q add 1000 nat 123 all from any to any"
197 # ping is successful now
198 atf_check -s exit:0 -o ignore jexec client1 ping -t 1 -c 1 198.51.100.2
199 atf_check -s exit:0 -o ignore jexec client2 ping -t 1 -c 1 198.51.100.2
201 # if portalias, test a tcp server/client with nc
202 if [[ $portalias ]]; then
204 daemon nc -p 198.51.100.2 7
205 atf_check -s exit:0 -o ignore jexec client$inst sh -c "echo | nc -N 198.51.100.2 7"
212 atf_set descr 'IPv4 CGN (RFC 6598) test'
213 atf_set require.user root
223 firewall_cleanup ipfw
228 atf_set descr 'IPv4 CGN (RFC 6598) port aliasing test'
229 atf_set require.user root
239 firewall_cleanup ipfw