xref: /freebsd/tests/sys/netpfil/pf/synproxy.sh (revision 16038816)
1# $FreeBSD$
2#
3# SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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. $(atf_get_srcdir)/utils.subr
29
30atf_test_case "synproxy" "cleanup"
31synproxy_head()
32{
33	atf_set descr 'Basic synproxy test'
34	atf_set require.user root
35}
36
37synproxy_body()
38{
39	pft_init
40
41	epair=$(vnet_mkepair)
42	ifconfig ${epair}a 192.0.2.1/24 up
43	route add -net 198.51.100.0/24 192.0.2.2
44
45	link=$(vnet_mkepair)
46
47	vnet_mkjail alcatraz ${epair}b ${link}a
48	jexec alcatraz ifconfig ${epair}b 192.0.2.2/24 up
49	jexec alcatraz ifconfig ${link}a 198.51.100.1/24 up
50	jexec alcatraz sysctl net.inet.ip.forwarding=1
51
52	vnet_mkjail singsing ${link}b
53	jexec singsing ifconfig ${link}b 198.51.100.2/24 up
54	jexec singsing route add default 198.51.100.1
55
56	jexec singsing /usr/sbin/inetd -p inetd-singsing.pid $(atf_get_srcdir)/echo_inetd.conf
57
58	jexec alcatraz pfctl -e
59	pft_set_rules alcatraz "set fail-policy return" \
60		"scrub in all fragment reassemble" \
61		"pass out quick on ${epair}b all no state allow-opts" \
62		"pass in quick on ${epair}b proto tcp from any to any port 7 synproxy state" \
63		"pass in quick on ${epair}b all no state"
64
65	# Sanity check, can we ping singing
66	atf_check -s exit:0 -o ignore ping -c 1 198.51.100.2
67
68	# Check that we can talk to the singsing jail, after synproxying
69	reply=$(echo ping | nc -N 198.51.100.2 7)
70	if [ "${reply}" != "ping" ];
71	then
72		atf_fail "echo failed"
73	fi
74}
75
76synproxy_cleanup()
77{
78	rm -f inetd-singsing.pid
79	pft_cleanup
80}
81
82atf_init_test_cases()
83{
84	atf_add_test_case "synproxy"
85}
86