3 # SPDX-License-Identifier: BSD-2-Clause-FreeBSD
5 # Copyright (c) 2018 Kristof Provost <kp@FreeBSD.org>
7 # Redistribution and use in source and binary forms, with or without
8 # modification, are permitted provided that the following conditions
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.
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
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21 # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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28 . $(atf_get_srcdir)/utils.subr
30 atf_test_case "exhaust" "cleanup"
33 atf_set descr 'Test exhausting the NAT pool'
34 atf_set require.user root
41 epair_nat=$(vnet_mkepair)
42 epair_echo=$(vnet_mkepair)
44 vnet_mkjail nat ${epair_nat}b ${epair_echo}a
45 vnet_mkjail echo ${epair_echo}b
47 ifconfig ${epair_nat}a 192.0.2.2/24 up
48 route add -net 198.51.100.0/24 192.0.2.1
50 jexec nat ifconfig ${epair_nat}b 192.0.2.1/24 up
51 jexec nat ifconfig ${epair_echo}a 198.51.100.1/24 up
52 jexec nat sysctl net.inet.ip.forwarding=1
54 jexec echo ifconfig ${epair_echo}b 198.51.100.2/24 up
55 jexec echo /usr/sbin/inetd -p inetd-echo.pid $(atf_get_srcdir)/echo_inetd.conf
60 "nat pass on ${epair_echo}a inet from 192.0.2.0/24 to any -> (${epair_echo}a) port 30000:30001 sticky-address"
63 atf_check -s exit:0 -o ignore ping -c 3 198.51.100.2
65 echo "foo" | nc -N 198.51.100.2 7
66 echo "foo" | nc -N 198.51.100.2 7
68 # This one will fail, but that's expected
69 echo "foo" | nc -N 198.51.100.2 7 &
73 # If the kernel is stuck in pf_get_sport() this will not succeed either.
74 timeout 2 jexec nat pfctl -sa
75 if [ $? -eq 124 ]; then
77 atf_fail "pfctl timeout"
89 atf_add_test_case "exhaust"