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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_get_srcdir)/runner.subr
basic_head()
{
atf_set descr 'Basic IPv4 NAT test'
atf_set require.user root
}
basic_body()
{
firewall=$1
firewall_init $firewall
nat_init $firewall
epair=$(vnet_mkepair)
vnet_mkjail alcatraz ${epair}b
ifconfig ${epair}a 192.0.2.2/24 up
route add -net 198.51.100.0/24 192.0.2.1
jexec alcatraz ifconfig ${epair}b 192.0.2.1/24 up
jexec alcatraz sysctl net.inet.ip.forwarding=1
# Enable redirect filter rule
firewall_config alcatraz ${firewall} \
"pf" \
"rdr pass on ${epair}b proto tcp from any to 198.51.100.0/24 port 1234 -> 192.0.2.1 port 4321" \
"ipfnat" \
"rdr ${epair}b from any to 198.51.100.0/24 port = 1234 -> 192.0.2.1 port 4321 tcp"
echo "foo" | jexec alcatraz nc -N -l 4321 &
sleep 1
result=$(nc -N -w 3 198.51.100.2 1234)
if [ "$result" != "foo" ]; then
atf_fail "Redirect failed"
fi
}
basic_cleanup()
{
firewall=$1
firewall_cleanup $firewall
}
local_redirect_head()
{
atf_set descr 'Redirect local traffic test'
atf_set require.user root
}
local_redirect_body()
{
firewall=$1
firewall_init $firewall
nat_init $firewall
bridge=$(vnet_mkbridge)
ifconfig ${bridge} 192.0.2.1/24 up
epair1=$(vnet_mkepair)
epair2=$(vnet_mkepair)
vnet_mkjail first ${epair1}b
ifconfig ${epair1}a up
ifconfig ${bridge} addm ${epair1}a
jexec first ifconfig ${epair1}b 192.0.2.2/24 up
jexec first ifconfig lo0 127.0.0.1/8 up
vnet_mkjail second ${epair2}b
ifconfig ${epair2}a up
ifconfig ${bridge} addm ${epair2}a
jexec second ifconfig ${epair2}b 192.0.2.3/24 up
jexec second ifconfig lo0 127.0.0.1/8 up
jexec second sysctl net.inet.ip.forwarding=1
# Enable redirect filter rule
firewall_config second ${firewall} \
"pf" \
"rdr pass proto tcp from any to 192.0.2.3/24 port 1234 -> 192.0.2.2 port 4321" \
"ipfnat" \
"rdr '*' from any to 192.0.2.3/24 port = 1234 -> 192.0.2.2 port 4321 tcp"
echo "foo" | jexec first nc -N -l 4321 &
sleep 1
# Verify that second can use its rule to redirect local connections to first
result=$(jexec second nc -N -w 3 192.0.2.3 1234)
if [ "$result" != "foo" ]; then
atf_fail "Redirect failed"
fi
}
local_redirect_cleanup()
{
firewall=$1
firewall_cleanup $firewall
}
setup_tests \
basic \
pf \
ipfnat \
local_redirect \
pf \
ipfnat
|
