xref: /freebsd/tests/sys/netpfil/pf/pass_block.sh (revision 5ab1c5846ff41be24b1f6beb0317bf8258cd4409) 
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. $(atf_get_srcdir)/utils.subr
29
30atf_test_case "v4" "cleanup"
31v4_head()
32{
33	atf_set descr 'Basic pass/block test for IPv4'
34	atf_set require.user root
35}
36
37v4_body()
38{
39	pft_init
40
41	epair=$(vnet_mkepair)
42	ifconfig ${epair}a 192.0.2.1/24 up
43
44	# Set up a simple jail with one interface
45	vnet_mkjail alcatraz ${epair}b
46	jexec alcatraz ifconfig ${epair}b 192.0.2.2/24 up
47
48	# Trivial ping to the jail, without pf
49	atf_check -s exit:0 -o ignore ping -c 1 -t 1 192.0.2.2
50
51	# pf without policy will let us ping
52	jexec alcatraz pfctl -e
53	atf_check -s exit:0 -o ignore ping -c 1 -t 1 192.0.2.2
54
55	# Block everything
56	pft_set_rules alcatraz "block in"
57	atf_check -s exit:2 -o ignore ping -c 1 -t 1 192.0.2.2
58
59	# Block everything but ICMP
60	pft_set_rules alcatraz "block in" "pass in proto icmp"
61	atf_check -s exit:0 -o ignore ping -c 1 -t 1 192.0.2.2
62}
63
64v4_cleanup()
65{
66	pft_cleanup
67}
68
69atf_test_case "v6" "cleanup"
70v6_head()
71{
72	atf_set descr 'Basic pass/block test for IPv6'
73	atf_set require.user root
74}
75
76v6_body()
77{
78	pft_init
79
80	epair=$(vnet_mkepair)
81	ifconfig ${epair}a inet6 2001:db8:42::1/64 up no_dad
82
83	# Set up a simple jail with one interface
84	vnet_mkjail alcatraz ${epair}b
85	jexec alcatraz ifconfig ${epair}b inet6 2001:db8:42::2/64 up no_dad
86
87	# Trivial ping to the jail, without pf
88	atf_check -s exit:0 -o ignore ping6 -c 1 -W 1 2001:db8:42::2
89
90	# pf without policy will let us ping
91	jexec alcatraz pfctl -e
92	atf_check -s exit:0 -o ignore ping6 -c 1 -W 1 2001:db8:42::2
93
94	# Block everything
95	pft_set_rules alcatraz "block in"
96	atf_check -s exit:2 -o ignore ping6 -c 1 -W 1 2001:db8:42::2
97
98	# Block everything but ICMP
99	pft_set_rules alcatraz "block in" "pass in proto icmp6"
100	atf_check -s exit:0 -o ignore ping6 -c 1 -W 1 2001:db8:42::2
101
102	# Allowing ICMPv4 does not allow ICMPv6
103	pft_set_rules alcatraz "block in" "pass in proto icmp"
104	atf_check -s exit:2 -o ignore ping6 -c 1 -W 1 2001:db8:42::2
105}
106
107v6_cleanup()
108{
109	pft_cleanup
110}
111
112atf_test_case "noalias" "cleanup"
113noalias_head()
114{
115	atf_set descr 'Test the :0 noalias option'
116	atf_set require.user root
117}
118
119noalias_body()
120{
121	pft_init
122
123	epair=$(vnet_mkepair)
124	ifconfig ${epair}a inet6 2001:db8:42::1/64 up no_dad
125
126	vnet_mkjail alcatraz ${epair}b
127	jexec alcatraz ifconfig ${epair}b inet6 2001:db8:42::2/64 up no_dad
128
129	linklocaladdr=$(jexec alcatraz ifconfig ${epair}b inet6 \
130		| grep %${epair}b \
131		| awk '{ print $2; }' \
132		| cut -d % -f 1)
133
134	# Sanity check
135	atf_check -s exit:0 -o ignore ping6 -c 3 -W 1 2001:db8:42::2
136	atf_check -s exit:0 -o ignore ping6 -c 3 -W 1 ${linklocaladdr}%${epair}a
137
138	jexec alcatraz pfctl -e
139	pft_set_rules alcatraz "block out inet6 from (${epair}b:0) to any"
140
141	atf_check -s exit:2 -o ignore ping6 -c 3 -W 1 2001:db8:42::2
142
143	# We should still be able to ping the link-local address
144	atf_check -s exit:0 -o ignore ping6 -c 3 -W 1 ${linklocaladdr}%${epair}a
145
146	pft_set_rules alcatraz "block out inet6 from (${epair}b) to any"
147
148	# We cannot ping to the link-local address
149	atf_check -s exit:2 -o ignore ping6 -c 3 -W 1 ${linklocaladdr}%${epair}a
150}
151
152noalias_cleanup()
153{
154	pft_cleanup
155}
156
157atf_test_case "nested_inline" "cleanup"
158nested_inline_head()
159{
160	atf_set descr "Test nested inline anchors, PR196314"
161	atf_set require.user root
162}
163
164nested_inline_body()
165{
166	pft_init
167
168	epair=$(vnet_mkepair)
169	ifconfig ${epair}a inet 192.0.2.1/24 up
170
171	vnet_mkjail alcatraz ${epair}b
172	jexec alcatraz ifconfig ${epair}b 192.0.2.2/24 up
173
174	jexec alcatraz pfctl -e
175	pft_set_rules alcatraz \
176		"block in" \
177		"anchor \"an1\" {" \
178			"pass in quick proto tcp to port time" \
179			"anchor \"an2\" {" \
180				"pass in quick proto icmp" \
181			"}" \
182		"}"
183
184	atf_check -s exit:0 -o ignore ping -c 1 -t 1 192.0.2.2
185}
186
187nested_inline_cleanup()
188{
189	pft_cleanup
190}
191
192atf_init_test_cases()
193{
194	atf_add_test_case "v4"
195	atf_add_test_case "v6"
196	atf_add_test_case "noalias"
197	atf_add_test_case "nested_inline"
198}
199