567631864d
Add test for checking that the packets are dropped if it is fragmented into more than the defined value. Submitted by: Ahsan Barkati Reviewed by: kp Sponsored by: Google, Inc. (GSoC 2019) Differential Revision: https://reviews.freebsd.org/D21307
81 lines
2.3 KiB
Bash
81 lines
2.3 KiB
Bash
#-
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# SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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#
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# Copyright (c) 2019 Ahsan Barkati
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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# SUCH DAMAGE.
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#
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# $FreeBSD$
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#
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. $(atf_get_srcdir)/utils.subr
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. $(atf_get_srcdir)/runner.subr
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fragments_head()
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{
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atf_set descr 'Too many fragments test'
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atf_set require.user root
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}
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fragments_body()
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{
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firewall=$1
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firewall_init $firewall
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epair=$(vnet_mkepair)
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ifconfig ${epair}b inet 192.0.2.1/24 up
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vnet_mkjail iron ${epair}a
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jexec iron ifconfig ${epair}a 192.0.2.2/24 up
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ifconfig ${epair}b mtu 200
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jexec iron ifconfig ${epair}a mtu 200
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firewall_config "iron" ${firewall} \
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"pf" \
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"scrub all fragment reassemble" \
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"ipfw" \
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"ipfw -q add 100 reass all from any to any in" \
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"ipf" \
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"pass in all with frags"
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jexec iron sysctl net.inet.ip.maxfragsperpacket=1024
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atf_check -s exit:0 -o ignore ping -c 1 -t 1 192.0.2.2
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atf_check -s exit:0 -o ignore ping -c 1 -s 800 192.0.2.2
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# Too many fragments should fail
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atf_check -s exit:2 -o ignore ping -c 1 -s 20000 192.0.2.2
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}
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fragments_cleanup()
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{
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firewall=$1
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firewall_cleanup $firewall
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}
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setup_tests \
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"fragments" \
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"pf" \
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"ipfw" \
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"ipf"
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