Author: kp
Date: Tue Aug 20 14:31:22 2019
New Revision: 351248
URL: https://svnweb.freebsd.org/changeset/base/351248
Log:
netpfil tests: Add the set ToS test for ipfw and pf
This test tests the following:
- The firewall is able to set the tos bits
- The firewall is able to set the DSCP bits when EN bits is already set and
the EN bits remains unchanged.
- The firewall is able to drop the packets based on ToS value
Submitted by: Ahsan Barkati
Reviewed by: kp
Sponsored by: Google, Inc. (GSoC 2019)
Differential Revision: https://reviews.freebsd.org/D21305
Added:
head/tests/sys/netpfil/common/tos.sh (contents, props changed)
Modified:
head/tests/sys/netpfil/common/Makefile
Modified: head/tests/sys/netpfil/common/Makefile
==============================================================================
--- head/tests/sys/netpfil/common/Makefile Tue Aug 20 05:36:41 2019
(r351247)
+++ head/tests/sys/netpfil/common/Makefile Tue Aug 20 14:31:22 2019
(r351248)
@@ -7,7 +7,8 @@ TESTSDIR= ${TESTSBASE}/sys/netpfil/common
ATF_TESTS_SH+= \
pass_block \
- nat
+ nat \
+ tos
${PACKAGE}FILES+= \
utils.subr \
Added: head/tests/sys/netpfil/common/tos.sh
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ head/tests/sys/netpfil/common/tos.sh Tue Aug 20 14:31:22 2019
(r351248)
@@ -0,0 +1,118 @@
+#-
+# 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
+
+tos_head()
+{
+ atf_set descr 'set-tos test'
+ atf_set require.user root
+ atf_set require.progs scapy
+}
+
+tos_body()
+{
+ firewall=$1
+ firewall_init $firewall
+
+ epair_send=$(vnet_mkepair)
+ ifconfig ${epair_send}a 192.0.2.1/24 up
+
+ epair_recv=$(vnet_mkepair)
+ ifconfig ${epair_recv}a up
+
+ vnet_mkjail iron ${epair_send}b ${epair_recv}b
+ jexec iron ifconfig ${epair_send}b 192.0.2.2/24 up
+ jexec iron ifconfig ${epair_recv}b 198.51.100.2/24 up
+ jexec iron sysctl net.inet.ip.forwarding=1
+ jexec iron arp -s 198.51.100.3 00:01:02:03:04:05
+ route add -net 198.51.100.0/24 192.0.2.2
+
+ # Check if the firewall is able to set the ToS bits
+ firewall_config "iron" ${firewall} \
+ "pf" \
+ "scrub out proto icmp set-tos 36" \
+ "ipfw" \
+ "ipfw -q add 100 setdscp 9 ip from any to any"
+ # dscp is set to 9 because last two bits are for
+ # EN and hence tos would be 36
+
+ atf_check -s exit:0 $(atf_get_srcdir)/pft_ping.py \
+ --sendif ${epair_send}a \
+ --to 198.51.100.3 \
+ --recvif ${epair_recv}a \
+ --expect-tos 36
+
+ # Check if the firewall is able to set the ToS bits
+ # and persists the EN bits (if already set)
+ firewall_config "iron" ${firewall} \
+ "pf" \
+ "scrub out proto icmp set-tos 36" \
+ "ipfw" \
+ "ipfw -q add 100 setdscp 9 ip from any to any"
+
+ atf_check -s exit:0 $(atf_get_srcdir)/pft_ping.py \
+ --sendif ${epair_send}a \
+ --to 198.51.100.3 \
+ --recvif ${epair_recv}a \
+ --send-tos 3 \
+ --expect-tos 39
+
+ # Check if the firewall is able to filter the
+ # packets based on the ToS value
+ firewall_config "iron" ${firewall} \
+ "pf" \
+ "block all tos 36" \
+ "ipfw" \
+ "ipfw -q add 100 deny all from any to any dscp 9"
+
+ atf_check -s exit:1 $(atf_get_srcdir)/pft_ping.py \
+ --sendif ${epair_send}a \
+ --to 198.51.100.3 \
+ --recvif ${epair_recv}a \
+ --send-tos 36
+
+ atf_check -s exit:0 $(atf_get_srcdir)/pft_ping.py \
+ --sendif ${epair_send}a \
+ --to 198.51.100.3 \
+ --recvif ${epair_recv}a \
+ --send-tos 32
+}
+
+tos_cleanup()
+{
+ firewall=$1
+ firewall_cleanup $firewall
+}
+
+setup_tests \
+ "tos" \
+ "pf" \
+ "ipfw"
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