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tests/sys/netpfil/common/nat.sh

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#-
# SPDX-License-Identifier: BSD-2-Clause-FreeBSD
#
# Copyright (c) 2019 Ahsan Barkati
#
# 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.
#
# $FreeBSD$
#
. $(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 $firewall
epair_host_nat=$(vnet_mkepair)
epair_client1_nat=$(vnet_mkepair)
epair_client2_nat=$(vnet_mkepair)
vnet_mkjail nat ${epair_host_nat}b ${epair_client1_nat}a ${epair_client2_nat}a
vnet_mkjail client1 ${epair_client1_nat}b
vnet_mkjail client2 ${epair_client2_nat}b
ifconfig ${epair_host_nat}a 198.51.100.2/24 up
jexec nat ifconfig ${epair_host_nat}b 198.51.100.1/24 up
jexec nat ifconfig ${epair_client1_nat}a 192.0.2.1/24 up
jexec client1 ifconfig ${epair_client1_nat}b 192.0.2.2/24 up
jexec nat ifconfig ${epair_client2_nat}a 192.0.3.1/24 up
jexec client2 ifconfig ${epair_client2_nat}b 192.0.3.2/24 up
jexec nat sysctl net.inet.ip.forwarding=1
jexec client1 route add -net 198.51.100.0/24 192.0.2.1
jexec client2 route add -net 198.51.100.0/24 192.0.3.1
# ping fails without NAT configuration
atf_check -s exit:2 -o ignore jexec client1 ping -t 1 -c 1 198.51.100.2
atf_check -s exit:2 -o ignore jexec client2 ping -t 1 -c 1 198.51.100.2
firewall_config nat ${firewall} \
"pf" \
"nat pass on ${epair_host_nat}b inet from any to any -> (${epair_host_nat}b)" \
"ipfw" \
"ipfw -q nat 123 config if ${epair_host_nat}b" \
"ipfw -q add 1000 nat 123 all from any to any" \
"ipfnat" \
"map ${epair_host_nat}b 192.0.3.0/24 -> 0/32" \
"map ${epair_host_nat}b 192.0.2.0/24 -> 0/32" \
# ping is successful now
atf_check -s exit:0 -o ignore jexec client1 ping -t 1 -c 1 198.51.100.2
atf_check -s exit:0 -o ignore jexec client2 ping -t 1 -c 1 198.51.100.2
}
basic_cleanup()
{
firewall=$1
firewall_cleanup $firewall
}
userspace_nat_head()
{
atf_set descr 'Nat test for ipfw using userspace natd'
atf_set require.user root
}
userspace_nat_body()
{
firewall=$1
firewall_init $firewall
if ! kldstat -q -m ipdivert; then
atf_skip "This test requires ipdivert module loaded"
fi
epair_host_nat=$(vnet_mkepair)
epair_client1_nat=$(vnet_mkepair)
epair_client2_nat=$(vnet_mkepair)
vnet_mkjail nat ${epair_host_nat}b ${epair_client1_nat}a ${epair_client2_nat}a
vnet_mkjail client1 ${epair_client1_nat}b
vnet_mkjail client2 ${epair_client2_nat}b
ifconfig ${epair_host_nat}a 198.51.100.2/24 up
jexec nat ifconfig ${epair_host_nat}b 198.51.100.1/24 up
jexec nat ifconfig ${epair_client1_nat}a 192.0.2.1/24 up
jexec client1 ifconfig ${epair_client1_nat}b 192.0.2.2/24 up
jexec nat ifconfig ${epair_client2_nat}a 192.0.3.1/24 up
jexec client2 ifconfig ${epair_client2_nat}b 192.0.3.2/24 up
jexec nat sysctl net.inet.ip.forwarding=1
jexec client1 route add -net 198.51.100.0/24 192.0.2.1
jexec client2 route add -net 198.51.100.0/24 192.0.3.1
# Test the userspace NAT of ipfw
# ping fails without NAT configuration
atf_check -s exit:2 -o ignore jexec client1 ping -t 1 -c 1 198.51.100.2
atf_check -s exit:2 -o ignore jexec client2 ping -t 1 -c 1 198.51.100.2
firewall_config nat ${firewall} \
"ipfw" \
"natd -interface ${epair_host_nat}b" \
"ipfw -q add divert natd all from any to any via ${epair_host_nat}b" \
# ping is successful now
atf_check -s exit:0 -o ignore jexec client1 ping -t 1 -c 1 198.51.100.2
atf_check -s exit:0 -o ignore jexec client2 ping -t 1 -c 1 198.51.100.2
}
userspace_nat_cleanup()
{
firewall=$1
firewall_cleanup $firewall
}
setup_tests \
basic \
pf \
thjUnsubmitted
Not Done
Inline Actions

The setup test lines should align based on the first character

thj: The setup test lines should align based on the first character
ahsanbAuthorUnsubmitted
Done
Inline Actions

I don't know why after git push 4-spaced tabs are being converted to 8-spaced tabs.

ahsanb: I don't know why after git push 4-spaced tabs are being converted to 8-spaced tabs.
ipfw \
ipfnat \
userspace_nat \
thjUnsubmitted
Not Done
Inline Actions

I do think 'userspace_nat' is descriptie enough, I can't tell from this line which firewall is being tested. Is there a different name that could be used?

thj: I do think 'userspace_nat' is descriptie enough, I can't tell from this line which firewall is…
ahsanbAuthorUnsubmitted
Done
Inline Actions

The "userspace_nat" is the name of the test case, same as "basic". The "basic" is tested on ipf, ipfw and pf. while "userspace_nat" is tested on ipfw. This is also the reason why ipfw appears twice.

ahsanb: The "userspace_nat" is the name of the test case, same as "basic". The "basic" is tested on ipf…
ipfw
thjUnsubmitted
Not Done
Inline Actions

ipfw is in the list twice, should this be ipf?

thj: ipfw is in the list twice, should this be ipf?
No newline at end of file