freebsd-dev/tests/sys/netpfil/pf/fragmentation.sh
Mark Johnston 96bc58ea81 Remove the svn:executable property from some pf test files.
The test makefiles will handle setting mode bits during install.  Also,
Phabricator gets upset when uploading an executable plain-text file
without a shebang.

MFC after:	1 week
2020-05-11 19:07:33 +00:00

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# $FreeBSD$
#
# SPDX-License-Identifier: BSD-2-Clause-FreeBSD
#
# Copyright (c) 2017 Kristof Provost <kp@FreeBSD.org>
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
# SUCH DAMAGE.
. $(atf_get_srcdir)/utils.subr
atf_test_case "too_many_fragments" "cleanup"
too_many_fragments_head()
{
atf_set descr 'IPv4 fragment limitation test'
atf_set require.user root
}
too_many_fragments_body()
{
pft_init
epair=$(vnet_mkepair)
vnet_mkjail alcatraz ${epair}a
ifconfig ${epair}b inet 192.0.2.1/24 up
jexec alcatraz ifconfig ${epair}a 192.0.2.2/24 up
ifconfig ${epair}b mtu 200
jexec alcatraz ifconfig ${epair}a mtu 200
jexec alcatraz pfctl -e
pft_set_rules alcatraz \
"scrub all fragment reassemble"
# So we know pf is limiting things
jexec alcatraz sysctl net.inet.ip.maxfragsperpacket=1024
# Sanity check
atf_check -s exit:0 -o ignore ping -c 1 192.0.2.2
# We can ping with < 64 fragments
atf_check -s exit:0 -o ignore ping -c 1 -s 800 192.0.2.2
# Too many fragments should fail
atf_check -s exit:2 -o ignore ping -c 1 -s 20000 192.0.2.2
}
too_many_fragments_cleanup()
{
pft_cleanup
}
atf_test_case "v6" "cleanup"
v6_head()
{
atf_set descr 'IPv6 fragmentation test'
atf_set require.user root
atf_set require.progs scapy
}
v6_body()
{
pft_init
epair_send=$(vnet_mkepair)
epair_link=$(vnet_mkepair)
vnet_mkjail alcatraz ${epair_send}b ${epair_link}a
vnet_mkjail singsing ${epair_link}b
ifconfig ${epair_send}a inet6 2001:db8:42::1/64 no_dad up
jexec alcatraz ifconfig ${epair_send}b inet6 2001:db8:42::2/64 no_dad up
jexec alcatraz ifconfig ${epair_link}a inet6 2001:db8:43::2/64 no_dad up
jexec alcatraz sysctl net.inet6.ip6.forwarding=1
jexec singsing ifconfig ${epair_link}b inet6 2001:db8:43::3/64 no_dad up
jexec singsing route add -6 2001:db8:42::/64 2001:db8:43::2
route add -6 2001:db8:43::/64 2001:db8:42::2
jexec alcatraz ifconfig ${epair_send}b inet6 -ifdisabled
jexec alcatraz ifconfig ${epair_link}a inet6 -ifdisabled
jexec singsing ifconfig ${epair_link}b inet6 -ifdisabled
ifconfig ${epair_send}a inet6 -ifdisabled
jexec alcatraz pfctl -e
pft_set_rules alcatraz \
"scrub fragment reassemble" \
"block in" \
"pass in inet6 proto icmp6 icmp6-type { neighbrsol, neighbradv }" \
"pass in inet6 proto icmp6 icmp6-type { echoreq, echorep }"
# Host test
atf_check -s exit:0 -o ignore \
ping6 -c 1 2001:db8:42::2
atf_check -s exit:0 -o ignore \
ping6 -c 1 -s 4500 2001:db8:42::2
atf_check -s exit:0 -o ignore\
ping6 -c 1 -b 70000 -s 65000 2001:db8:42::2
# Forwarding test
atf_check -s exit:0 -o ignore \
ping6 -c 1 2001:db8:43::3
atf_check -s exit:0 -o ignore \
ping6 -c 1 -s 4500 2001:db8:43::3
atf_check -s exit:0 -o ignore\
ping6 -c 1 -b 70000 -s 65000 2001:db8:43::3
$(atf_get_srcdir)/CVE-2019-5597.py \
${epair_send}a \
2001:db8:42::1 \
2001:db8:43::3
}
v6_cleanup()
{
pft_cleanup
}
atf_init_test_cases()
{
atf_add_test_case "too_many_fragments"
atf_add_test_case "v6"
}