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.
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18 # ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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30 . $(atf_get_srcdir)/utils.subr
31 . $(atf_get_srcdir)/runner.subr
35 atf_set descr 'Too many fragments test'
36 atf_set require.user root
42 firewall_init $firewall
45 ifconfig ${epair}b inet 192.0.2.1/24 up
47 vnet_mkjail iron ${epair}a
48 jexec iron ifconfig ${epair}a 192.0.2.2/24 up
50 ifconfig ${epair}b mtu 200
51 jexec iron ifconfig ${epair}a mtu 200
53 firewall_config "iron" ${firewall} \
55 "scrub all fragment reassemble" \
57 "ipfw -q add 100 reass all from any to any in" \
59 "pass in all with frags"
61 jexec iron sysctl net.inet.ip.maxfragsperpacket=1024
63 atf_check -s exit:0 -o ignore ping -c 1 -t 1 192.0.2.2
64 atf_check -s exit:0 -o ignore ping -c 1 -s 800 192.0.2.2
66 # Too many fragments should fail
67 atf_check -s exit:2 -o ignore ping -c 1 -s 20000 192.0.2.2
73 firewall_cleanup $firewall