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81647eb60e
Implement equivalents to DIOCSTART and DIOCSTOP in netlink. Provide a
libpfctl implementation and add a basic test case, mostly to verify that
we still return the same errors as before the conversion
Sponsored by: Rubicon Communications, LLC ("Netgate")
Differential Revision: https://reviews.freebsd.org/D42145
304 lines
7.3 KiB
Bash
304 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) 2018 Kristof Provost <kp@FreeBSD.org>
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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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. $(atf_get_srcdir)/utils.subr
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common_dir=$(atf_get_srcdir)/../common
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atf_test_case "enable_disable" "cleanup"
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enable_disable_head()
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{
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atf_set descr 'Test enable/disable'
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atf_set require.user root
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}
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enable_disable_body()
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{
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pft_init
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j="pass_block:enable_disable"
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vnet_mkjail ${j}
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# Disable when disabled fails
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atf_check -s exit:1 -e ignore \
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jexec ${j} pfctl -d
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# Enable succeeds
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atf_check -s exit:0 -e ignore \
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jexec ${j} pfctl -e
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# Enable when enabled fails
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atf_check -s exit:1 -e ignore \
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jexec ${j} pfctl -e
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# Disable succeeds
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atf_check -s exit:0 -e ignore \
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jexec ${j} pfctl -d
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}
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enable_disable_cleanup()
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{
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pft_cleanup
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}
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atf_test_case "v4" "cleanup"
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v4_head()
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{
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atf_set descr 'Basic pass/block test for IPv4'
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atf_set require.user root
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}
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v4_body()
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{
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pft_init
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epair=$(vnet_mkepair)
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ifconfig ${epair}a 192.0.2.1/24 up
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# Set up a simple jail with one interface
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vnet_mkjail alcatraz ${epair}b
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jexec alcatraz ifconfig ${epair}b 192.0.2.2/24 up
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# Trivial ping to the jail, without pf
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atf_check -s exit:0 -o ignore ping -c 1 -t 1 192.0.2.2
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# pf without policy will let us ping
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jexec alcatraz pfctl -e
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atf_check -s exit:0 -o ignore ping -c 1 -t 1 192.0.2.2
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# Block everything
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pft_set_rules alcatraz "block in"
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atf_check -s exit:2 -o ignore ping -c 1 -t 1 192.0.2.2
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# Block everything but ICMP
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pft_set_rules alcatraz "block in" "pass in proto icmp"
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atf_check -s exit:0 -o ignore ping -c 1 -t 1 192.0.2.2
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}
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v4_cleanup()
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{
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pft_cleanup
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}
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atf_test_case "v6" "cleanup"
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v6_head()
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{
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atf_set descr 'Basic pass/block test for IPv6'
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atf_set require.user root
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}
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v6_body()
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{
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pft_init
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epair=$(vnet_mkepair)
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ifconfig ${epair}a inet6 2001:db8:42::1/64 up no_dad
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# Set up a simple jail with one interface
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vnet_mkjail alcatraz ${epair}b
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jexec alcatraz ifconfig ${epair}b inet6 2001:db8:42::2/64 up no_dad
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# Trivial ping to the jail, without pf
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atf_check -s exit:0 -o ignore ping -6 -c 1 -W 1 2001:db8:42::2
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# pf without policy will let us ping
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jexec alcatraz pfctl -e
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atf_check -s exit:0 -o ignore ping -6 -c 1 -W 1 2001:db8:42::2
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# Block everything
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pft_set_rules alcatraz "block in"
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atf_check -s exit:2 -o ignore ping -6 -c 1 -W 1 2001:db8:42::2
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# Block everything but ICMP
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pft_set_rules alcatraz "block in" "pass in proto icmp6"
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atf_check -s exit:0 -o ignore ping -6 -c 1 -W 1 2001:db8:42::2
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# Allowing ICMPv4 does not allow ICMPv6
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pft_set_rules alcatraz "block in" "pass in proto icmp"
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atf_check -s exit:2 -o ignore ping -6 -c 1 -W 1 2001:db8:42::2
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}
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v6_cleanup()
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{
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pft_cleanup
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}
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atf_test_case "noalias" "cleanup"
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noalias_head()
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{
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atf_set descr 'Test the :0 noalias option'
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atf_set require.user root
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}
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noalias_body()
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{
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pft_init
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epair=$(vnet_mkepair)
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ifconfig ${epair}a inet6 2001:db8:42::1/64 up no_dad
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vnet_mkjail alcatraz ${epair}b
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jexec alcatraz ifconfig ${epair}b inet6 2001:db8:42::2/64 up no_dad
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linklocaladdr=$(jexec alcatraz ifconfig ${epair}b inet6 \
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| grep %${epair}b \
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| awk '{ print $2; }' \
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| cut -d % -f 1)
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# Sanity check
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atf_check -s exit:0 -o ignore ping -6 -c 3 -W 1 2001:db8:42::2
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atf_check -s exit:0 -o ignore ping -6 -c 3 -W 1 ${linklocaladdr}%${epair}a
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jexec alcatraz pfctl -e
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pft_set_rules alcatraz "block out inet6 from (${epair}b:0) to any"
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atf_check -s exit:2 -o ignore ping -6 -c 3 -W 1 2001:db8:42::2
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# We should still be able to ping the link-local address
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atf_check -s exit:0 -o ignore ping -6 -c 3 -W 1 ${linklocaladdr}%${epair}a
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pft_set_rules alcatraz "block out inet6 from (${epair}b) to any"
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# We cannot ping to the link-local address
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atf_check -s exit:2 -o ignore ping -6 -c 3 -W 1 ${linklocaladdr}%${epair}a
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}
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noalias_cleanup()
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{
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pft_cleanup
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}
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atf_test_case "nested_inline" "cleanup"
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nested_inline_head()
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{
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atf_set descr "Test nested inline anchors, PR196314"
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atf_set require.user root
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}
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nested_inline_body()
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{
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pft_init
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epair=$(vnet_mkepair)
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ifconfig ${epair}a inet 192.0.2.1/24 up
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vnet_mkjail alcatraz ${epair}b
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jexec alcatraz ifconfig ${epair}b 192.0.2.2/24 up
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jexec alcatraz pfctl -e
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pft_set_rules alcatraz \
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"block in" \
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"anchor \"an1\" {" \
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"pass in quick proto tcp to port time" \
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"anchor \"an2\" {" \
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"pass in quick proto icmp" \
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"}" \
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"}"
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atf_check -s exit:0 -o ignore ping -c 1 -t 1 192.0.2.2
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}
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nested_inline_cleanup()
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{
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pft_cleanup
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}
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atf_test_case "urpf" "cleanup"
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urpf_head()
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{
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atf_set descr "Test unicast reverse path forwarding check"
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atf_set require.user root
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atf_set require.progs scapy
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}
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urpf_body()
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{
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pft_init
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epair_one=$(vnet_mkepair)
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epair_two=$(vnet_mkepair)
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vnet_mkjail alcatraz ${epair_one}b ${epair_two}b
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ifconfig ${epair_one}a 192.0.2.2/24 up
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ifconfig ${epair_two}a 198.51.100.2/24 up
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jexec alcatraz ifconfig ${epair_one}b 192.0.2.1/24 up
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jexec alcatraz ifconfig ${epair_two}b 198.51.100.1/24 up
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jexec alcatraz sysctl net.inet.ip.forwarding=1
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# Sanity checks
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atf_check -s exit:0 -o ignore ping -c 1 -t 1 192.0.2.1
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atf_check -s exit:0 -o ignore ping -c 1 -t 1 198.51.100.1
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atf_check -s exit:0 ${common_dir}/pft_ping.py \
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--sendif ${epair_one}a \
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--to 192.0.2.1 \
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--fromaddr 198.51.100.2 \
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--replyif ${epair_two}a
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atf_check -s exit:0 ${common_dir}/pft_ping.py \
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--sendif ${epair_two}a \
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--to 198.51.100.1 \
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--fromaddr 192.0.2.2 \
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--replyif ${epair_one}a
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pft_set_rules alcatraz \
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"block quick from urpf-failed" \
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"set skip on lo"
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jexec alcatraz pfctl -e
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# Correct source still works
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atf_check -s exit:0 -o ignore ping -c 1 -t 1 192.0.2.1
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atf_check -s exit:0 -o ignore ping -c 1 -t 1 198.51.100.1
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# Unexpected source interface is blocked
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atf_check -s exit:1 ${common_dir}/pft_ping.py \
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--sendif ${epair_one}a \
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--to 192.0.2.1 \
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--fromaddr 198.51.100.2 \
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--replyif ${epair_two}a
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atf_check -s exit:1 ${common_dir}/pft_ping.py \
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--sendif ${epair_two}a \
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--to 198.51.100.1 \
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--fromaddr 192.0.2.2 \
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--replyif ${epair_one}a
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}
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urpf_cleanup()
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{
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pft_cleanup
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}
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atf_init_test_cases()
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{
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atf_add_test_case "enable_disable"
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atf_add_test_case "v4"
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atf_add_test_case "v6"
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atf_add_test_case "noalias"
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atf_add_test_case "nested_inline"
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atf_add_test_case "urpf"
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}
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