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# $FreeBSD$
#
# SPDX-License-Identifier: BSD-2-Clause-FreeBSD
#
# Copyright (c) 2018 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.
. $(atf_get_srcdir)/utils.subr
atf_test_case "synproxy" "cleanup"
synproxy_head()
{
atf_set descr 'Basic synproxy test'
atf_set require.user root
}
synproxy_body()
{
pft_init
epair=$(vnet_mkepair)
ifconfig ${epair}a 192.0.2.1/24 up
route add -net 198.51.100.0/24 192.0.2.2
link=$(vnet_mkepair)
vnet_mkjail alcatraz ${epair}b ${link}a
jexec alcatraz ifconfig ${epair}b 192.0.2.2/24 up
jexec alcatraz ifconfig ${link}a 198.51.100.1/24 up
jexec alcatraz sysctl net.inet.ip.forwarding=1
vnet_mkjail singsing ${link}b
jexec singsing ifconfig ${link}b 198.51.100.2/24 up
jexec singsing route add default 198.51.100.1
jexec singsing /usr/sbin/inetd -p inetd-singsing.pid $(atf_get_srcdir)/echo_inetd.conf
jexec alcatraz pfctl -e
pft_set_rules alcatraz "set fail-policy return" \
"scrub in all fragment reassemble" \
"pass out quick on ${epair}b all no state allow-opts" \
"pass in quick on ${epair}b proto tcp from any to any port 7 synproxy state" \
"pass in quick on ${epair}b all no state"
# Sanity check, can we ping singing
atf_check -s exit:0 -o ignore ping -c 1 198.51.100.2
# Check that we can talk to the singsing jail, after synproxying
reply=$(echo ping | nc -N 198.51.100.2 7)
if [ "${reply}" != "ping" ];
then
atf_fail "echo failed"
fi
}
synproxy_cleanup()
{
rm -f inetd-singsing.pid
pft_cleanup
}
atf_test_case "local" "cleanup"
local_head()
{
atf_set descr 'Synproxy a locally terminated connection'
atf_set require.user root
}
local_body()
{
pft_init
epair=$(vnet_mkepair)
ifconfig ${epair}a 192.0.2.2/24 up
vnet_mkjail alcatraz ${epair}b
jexec alcatraz ifconfig ${epair}b 192.0.2.1/24 up
jexec alcatraz /usr/sbin/inetd -p inetd-alcatraz.pid \
$(atf_get_srcdir)/echo_inetd.conf
jexec alcatraz pfctl -e
pft_set_rules alcatraz "set fail-policy return" \
"scrub in all fragment reassemble" \
"pass in quick on ${epair}b proto tcp from any to any port 7 synproxy state"
# Sanity check
atf_check -s exit:0 -o ignore ping -c 1 192.0.2.1
# Check that we can talk to the jail, after synproxying
reply=$(echo ping | nc -N -w 5 192.0.2.1 7)
if [ "${reply}" != "ping" ];
then
atf_fail "echo failed"
fi
}
local_cleanup()
{
rm -f inetd-alcatraz.pid
pft_cleanup
}
atf_test_case "local_v6" "cleanup"
local_v6_head()
{
atf_set descr 'Synproxy (v6) a locally terminated connection'
atf_set require.user root
}
local_v6_body()
{
pft_init
epair=$(vnet_mkepair)
ifconfig ${epair}a inet6 2001:db8:42::1/64 no_dad up
vnet_mkjail alcatraz ${epair}b
jexec alcatraz ifconfig ${epair}b inet6 2001:db8:42::2/64 no_dad up
jexec alcatraz /usr/sbin/inetd -p inetd-alcatraz.pid \
$(atf_get_srcdir)/echo_inetd.conf
jexec alcatraz pfctl -e
pft_set_rules alcatraz "set fail-policy return" \
"scrub in all fragment reassemble" \
"pass in quick on ${epair}b proto tcp from any to any port 7 synproxy state"
# Sanity check
atf_check -s exit:0 -o ignore ping6 -c 1 2001:db8:42::2
reply=$(echo ping | nc -N -w 5 2001:db8:42::2 7)
if [ "${reply}" != "ping" ];
then
atf_fail "echo failed"
fi
}
local_v6_cleanup()
{
rm -f inetd-alcatraz.pid
pft_cleanup
}
atf_init_test_cases()
{
atf_add_test_case "synproxy"
atf_add_test_case "local"
atf_add_test_case "local_v6"
}
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