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pf tests: MAC address filtering test

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Test the MAC address filtering capability in the new 'ether' feature in
pf.

Sponsored by:	Rubicon Communications, LLC ("Netgate")
Differential Revision:	https://reviews.freebsd.org/D31743
This commit is contained in:
Kristof Provost 2021-02-09 11:04:36 +01:00
parent 6b7c268003
commit d6fc3ee2e7
2 changed files with 89 additions and 0 deletions
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1
tests/sys/netpfil/pf/Makefile
View File

@ -9,6 +9,7 @@ ATF_TESTS_SH+= altq \
anchor \
checksum \
dup \
ether \
forward \
fragmentation \
get_state \

88
tests/sys/netpfil/pf/ether.sh Normal file
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@ -0,0 +1,88 @@
# $FreeBSD$
#
# SPDX-License-Identifier: BSD-2-Clause-FreeBSD
#
# Copyright © 2021. Rubicon Communications, LLC (Netgate). All Rights Reserved.
#
# 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.
. $(atf_get_srcdir)/utils.subr
atf_test_case "mac" "cleanup"
mac_head()
{
atf_set descr 'Test MAC address filtering'
atf_set require.user root
}
mac_body()
{
pft_init
epair=$(vnet_mkepair)
epair_a_mac=$(ifconfig ${epair}a ether | awk '/ether/ { print $2; }')
ifconfig ${epair}a 192.0.2.1/24 up
vnet_mkjail alcatraz ${epair}b
jexec alcatraz ifconfig ${epair}b 192.0.2.2/24 up
pft_set_rules alcatraz \
"ether block from ${epair_a_mac}"
atf_check -s exit:0 -o ignore ping -c 1 -t 1 192.0.2.2
# Now enable. Ping should fail.
jexec alcatraz pfctl -e
atf_check -s exit:2 -o ignore ping -c 1 -t 1 192.0.2.2
# Should still fail for 'to'
pft_set_rules alcatraz \
"ether block to ${epair_a_mac}"
atf_check -s exit:2 -o ignore ping -c 1 -t 1 192.0.2.2
# Succeeds if we block a different MAC address
pft_set_rules alcatraz \
"ether block to 00:01:02:03:04:05"
atf_check -s exit:0 -o ignore ping -c 1 -t 1 192.0.2.2
# Now try this with an interface specified
pft_set_rules alcatraz \
"ether block on ${epair}b from ${epair_a_mac}"
atf_check -s exit:2 -o ignore ping -c 1 -t 1 192.0.2.2
# Wrong interface should not match
pft_set_rules alcatraz \
"ether block on ${epair}a from ${epair_a_mac}"
atf_check -s exit:0 -o ignore ping -c 1 -t 1 192.0.2.2
}
mac_cleanup()
{
pft_cleanup
}
atf_init_test_cases()
{
atf_add_test_case "mac"
}