1#
2# SPDX-License-Identifier: BSD-2-Clause
3#
4# Copyright (c) 2017 Kristof Provost <kp@FreeBSD.org>
5# Copyright (c) 2023 Kajetan Staszkiewicz <vegeta@tuxpowered.net>
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 "match_full_v4" "cleanup"
31match_full_v4_head()
32{
33    atf_set descr 'Matching non-fragmented IPv4 packets'
34    atf_set require.user root
35    atf_set require.progs scapy
36}
37
38match_full_v4_body()
39{
40    setup_router_dummy_ipv4
41
42    # Sanity check.
43    ping_dummy_check_request exit:0 --ping-type=icmp
44
45    # Only non-fragmented packets are passed
46    jexec router pfctl -e
47    pft_set_rules router \
48        "pass out" \
49        "block in" \
50        "pass in inet proto icmp all icmp-type echoreq"
51    ping_dummy_check_request exit:0 --ping-type=icmp
52    ping_dummy_check_request exit:1 --ping-type=icmp --send-length=2000 --send-frag-length 1000
53}
54
55match_full_v4_cleanup()
56{
57    pft_cleanup
58}
59
60
61atf_test_case "match_fragment_v4" "cleanup"
62match_fragment_v4_head()
63{
64    atf_set descr 'Matching fragmented IPv4 packets'
65    atf_set require.user root
66    atf_set require.progs scapy
67}
68
69match_fragment_v4_body()
70{
71    setup_router_dummy_ipv4
72
73    # Sanity check.
74    ping_dummy_check_request exit:0 --ping-type=icmp
75
76    # Only fragmented packets are passed
77    pft_set_rules router \
78        "pass out" \
79        "block in" \
80        "pass in inet proto icmp fragment"
81    ping_dummy_check_request exit:1 --ping-type=icmp
82    ping_dummy_check_request exit:0 --ping-type=icmp --send-length=2000 --send-frag-length 1000
83}
84
85match_fragment_v4_cleanup()
86{
87    pft_cleanup
88}
89
90
91atf_test_case "compat_override_v4" "cleanup"
92compat_override_v4_head()
93{
94    atf_set descr 'Scrub rules override "set reassemble" for IPv4'
95    atf_set require.user root
96    atf_set require.progs scapy
97}
98
99compat_override_v4_body()
100{
101    setup_router_dummy_ipv4
102
103    # Sanity check.
104    ping_dummy_check_request exit:0 --ping-type=icmp
105
106    # The same as match_fragment_v4 but with "set reassemble yes" which
107    # is ignored because of presence of scrub rules.
108    # Only fragmented packets are passed.
109    pft_set_rules router \
110        "set reassemble yes" \
111        "no scrub" \
112        "pass out" \
113        "block in" \
114        "pass in inet proto icmp fragment"
115    ping_dummy_check_request exit:1 --ping-type=icmp
116    ping_dummy_check_request exit:0 --ping-type=icmp --send-length=2000 --send-frag-length 1000
117}
118
119compat_override_v4_cleanup()
120{
121    pft_cleanup
122}
123
124
125atf_init_test_cases()
126{
127    atf_add_test_case "match_full_v4"
128    atf_add_test_case "match_fragment_v4"
129    atf_add_test_case "compat_override_v4"
130}
131