#- # 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"