253 lines
7.3 KiB
Bash
253 lines
7.3 KiB
Bash
#-
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# SPDX-License-Identifier: BSD-2-Clause
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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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#
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. $(atf_get_srcdir)/utils.subr
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. $(atf_get_srcdir)/runner.subr
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basic_head()
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{
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atf_set descr 'Basic IPv4 NAT test'
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atf_set require.user root
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}
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basic_body()
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{
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firewall=$1
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firewall_init $firewall
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nat_init $firewall
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epair_host_nat=$(vnet_mkepair)
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epair_client1_nat=$(vnet_mkepair)
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epair_client2_nat=$(vnet_mkepair)
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vnet_mkjail nat ${epair_host_nat}b ${epair_client1_nat}a ${epair_client2_nat}a
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vnet_mkjail client1 ${epair_client1_nat}b
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vnet_mkjail client2 ${epair_client2_nat}b
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ifconfig ${epair_host_nat}a 198.51.100.2/24 up
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jexec nat ifconfig ${epair_host_nat}b 198.51.100.1/24 up
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jexec nat ifconfig ${epair_client1_nat}a 192.0.2.1/24 up
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jexec client1 ifconfig ${epair_client1_nat}b 192.0.2.2/24 up
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jexec nat ifconfig ${epair_client2_nat}a 192.0.3.1/24 up
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jexec client2 ifconfig ${epair_client2_nat}b 192.0.3.2/24 up
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jexec nat sysctl net.inet.ip.forwarding=1
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jexec client1 route add -net 198.51.100.0/24 192.0.2.1
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jexec client2 route add -net 198.51.100.0/24 192.0.3.1
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# ping fails without NAT configuration
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atf_check -s exit:2 -o ignore jexec client1 ping -t 1 -c 1 198.51.100.2
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atf_check -s exit:2 -o ignore jexec client2 ping -t 1 -c 1 198.51.100.2
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firewall_config nat ${firewall} \
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"pf" \
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"nat pass on ${epair_host_nat}b inet from any to any -> (${epair_host_nat}b)" \
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"ipfw" \
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"ipfw -q nat 123 config if ${epair_host_nat}b" \
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"ipfw -q add 1000 nat 123 all from any to any" \
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"ipfnat" \
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"map ${epair_host_nat}b 192.0.3.0/24 -> 0/32" \
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"map ${epair_host_nat}b 192.0.2.0/24 -> 0/32" \
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# ping is successful now
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atf_check -s exit:0 -o ignore jexec client1 ping -t 1 -c 1 198.51.100.2
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atf_check -s exit:0 -o ignore jexec client2 ping -t 1 -c 1 198.51.100.2
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}
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basic_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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userspace_nat_head()
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{
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atf_set descr 'Nat test for ipfw using userspace natd'
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atf_set require.user root
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}
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userspace_nat_body()
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{
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firewall=$1
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firewall_init $firewall
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if ! kldstat -q -m ipdivert; then
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atf_skip "This test requires ipdivert module loaded"
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fi
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epair_host_nat=$(vnet_mkepair)
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epair_client1_nat=$(vnet_mkepair)
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epair_client2_nat=$(vnet_mkepair)
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vnet_mkjail nat ${epair_host_nat}b ${epair_client1_nat}a ${epair_client2_nat}a
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vnet_mkjail client1 ${epair_client1_nat}b
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vnet_mkjail client2 ${epair_client2_nat}b
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ifconfig ${epair_host_nat}a 198.51.100.2/24 up
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jexec nat ifconfig ${epair_host_nat}b 198.51.100.1/24 up
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jexec nat ifconfig ${epair_client1_nat}a 192.0.2.1/24 up
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jexec client1 ifconfig ${epair_client1_nat}b 192.0.2.2/24 up
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jexec nat ifconfig ${epair_client2_nat}a 192.0.3.1/24 up
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jexec client2 ifconfig ${epair_client2_nat}b 192.0.3.2/24 up
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jexec nat sysctl net.inet.ip.forwarding=1
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jexec client1 route add -net 198.51.100.0/24 192.0.2.1
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jexec client2 route add -net 198.51.100.0/24 192.0.3.1
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# Test the userspace NAT of ipfw
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# ping fails without NAT configuration
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atf_check -s exit:2 -o ignore jexec client1 ping -t 1 -c 1 198.51.100.2
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atf_check -s exit:2 -o ignore jexec client2 ping -t 1 -c 1 198.51.100.2
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firewall_config nat ${firewall} \
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"ipfw" \
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"natd -interface ${epair_host_nat}b" \
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"ipfw -q add divert natd all from any to any via ${epair_host_nat}b" \
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# ping is successful now
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atf_check -s exit:0 -o ignore jexec client1 ping -t 1 -c 1 198.51.100.2
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atf_check -s exit:0 -o ignore jexec client2 ping -t 1 -c 1 198.51.100.2
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}
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userspace_nat_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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common_cgn() {
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firewall=$1
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portalias=$2
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firewall_init $firewall
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nat_init $firewall
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epair_host_nat=$(vnet_mkepair)
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epair_client1_nat=$(vnet_mkepair)
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epair_client2_nat=$(vnet_mkepair)
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vnet_mkjail nat ${epair_host_nat}b ${epair_client1_nat}a ${epair_client2_nat}a
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vnet_mkjail client1 ${epair_client1_nat}b
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vnet_mkjail client2 ${epair_client2_nat}b
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ifconfig ${epair_host_nat}a 198.51.100.2/24 up
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jexec nat ifconfig ${epair_host_nat}b 198.51.100.1/24 up
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jexec nat ifconfig ${epair_client1_nat}a 100.64.0.1/24 up
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jexec client1 ifconfig ${epair_client1_nat}b 100.64.0.2/24 up
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jexec nat ifconfig ${epair_client2_nat}a 100.64.1.1/24 up
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jexec client2 ifconfig ${epair_client2_nat}b 100.64.1.2/24 up
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jexec nat sysctl net.inet.ip.forwarding=1
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jexec client1 route add -net 198.51.100.0/24 100.64.0.1
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jexec client2 route add -net 198.51.100.0/24 100.64.1.1
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# ping fails without NAT configuration
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atf_check -s exit:2 -o ignore jexec client1 ping -t 1 -c 1 198.51.100.2
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atf_check -s exit:2 -o ignore jexec client2 ping -t 1 -c 1 198.51.100.2
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if [[ $portalias ]]; then
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firewall_config nat $firewall \
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"ipfw" \
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"ipfw -q nat 123 config if ${epair_host_nat}b unreg_cgn port_alias 2000-2999" \
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"ipfw -q nat 456 config if ${epair_host_nat}b unreg_cgn port_alias 3000-3999" \
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"ipfw -q add 1000 nat 123 all from any to 198.51.100.2 2000-2999 in via ${epair_host_nat}b" \
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"ipfw -q add 2000 nat 456 all from any to 198.51.100.2 3000-3999 in via ${epair_host_nat}b" \
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"ipfw -q add 3000 nat 123 all from 100.64.0.2 to any out via ${epair_host_nat}b" \
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"ipfw -q add 4000 nat 456 all from 100.64.1.2 to any out via ${epair_host_nat}b"
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else
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firewall_config nat $firewall \
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"ipfw" \
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"ipfw -q nat 123 config if ${epair_host_nat}b unreg_cgn" \
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"ipfw -q add 1000 nat 123 all from any to any"
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fi
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# ping is successful now
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atf_check -s exit:0 -o ignore jexec client1 ping -t 1 -c 1 198.51.100.2
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atf_check -s exit:0 -o ignore jexec client2 ping -t 1 -c 1 198.51.100.2
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# if portalias, test a tcp server/client with nc
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if [[ $portalias ]]; then
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for inst in 1 2; do
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daemon nc -p 198.51.100.2 7
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atf_check -s exit:0 -o ignore jexec client$inst sh -c "echo | nc -N 198.51.100.2 7"
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done
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fi
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}
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cgn_head()
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{
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atf_set descr 'IPv4 CGN (RFC 6598) test'
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atf_set require.user root
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}
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cgn_body()
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{
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common_cgn $1 false
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}
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cgn_cleanup()
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{
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firewall_cleanup ipfw
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}
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portalias_head()
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{
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atf_set descr 'IPv4 CGN (RFC 6598) port aliasing test'
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atf_set require.user root
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}
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portalias_body()
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{
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common_cgn $1 true
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}
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portalias_cleanup()
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{
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firewall_cleanup ipfw
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}
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setup_tests \
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basic \
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pf \
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ipfw \
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ipfnat \
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userspace_nat \
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ipfw \
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cgn \
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ipfw \
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portalias \
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ipfw
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